MineClone2/mods/ENTITIES/mcl_mobs/api.lua
cora 9a95557ec8 Simplify within_limits function
so you don't need a cs degree to read it ^^
2022-09-19 13:56:39 +02:00

4531 lines
108 KiB
Lua

-- API for Mobs Redo: MineClone 2 Edition (MRM)
mcl_mobs = {}
local MAX_MOB_NAME_LENGTH = 30
local HORNY_TIME = 30
local HORNY_AGAIN_TIME = 300
local CHILD_GROW_TIME = 60*20
local DEATH_DELAY = 0.5
local DEFAULT_FALL_SPEED = -10
local FLOP_HEIGHT = 5.0
local FLOP_HOR_SPEED = 1.5
local ENTITY_CRAMMING_MAX = 24
local CRAMMING_DAMAGE = 3
-- Localize
local S = minetest.get_translator("mcl_mobs")
-- Invisibility mod check
mcl_mobs.invis = {}
-- localize math functions
local pi = math.pi
local sin = math.sin
local cos = math.cos
local abs = math.abs
local min = math.min
local max = math.max
local atann = math.atan
local random = math.random
local floor = math.floor
local ceil = math.ceil
local atan = function(x)
if not x or x ~= x then
return 0
else
return atann(x)
end
end
-- Load settings
local damage_enabled = minetest.settings:get_bool("enable_damage")
local disable_blood = minetest.settings:get_bool("mobs_disable_blood")
local mobs_drop_items = minetest.settings:get_bool("mobs_drop_items") ~= false
local mobs_griefing = minetest.settings:get_bool("mobs_griefing") ~= false
local spawn_protected = minetest.settings:get_bool("mobs_spawn_protected") ~= false
local remove_far = true
local difficulty = tonumber(minetest.settings:get("mob_difficulty")) or 1.0
local show_health = false
-- Shows helpful debug info above each mob
local mobs_debug = minetest.settings:get_bool("mobs_debug", false)
local spawn_logging = minetest.settings:get_bool("mcl_logging_mobs_spawn",true)
-- Peaceful mode message so players will know there are no monsters
if minetest.settings:get_bool("only_peaceful_mobs", false) then
minetest.register_on_joinplayer(function(player)
minetest.chat_send_player(player:get_player_name(),
S("Peaceful mode active! No monsters will spawn."))
end)
end
-- pathfinding settings
local enable_pathfinding = true
local stuck_timeout = 3 -- how long before mob gets stuck in place and starts searching
local stuck_path_timeout = 10 -- how long will mob follow path before giving up
-- default nodes
local node_ice = "mcl_core:ice"
local node_snowblock = "mcl_core:snowblock"
local node_snow = "mcl_core:snow"
mcl_mobs.fallback_node = minetest.registered_aliases["mapgen_dirt"] or "mcl_core:dirt"
minetest.register_chatcommand("clearmobs",{
privs={maphack=true},
params = "<all>|<nametagged>|<range>",
description=S("Removes all spawned mobs except nametagged and tamed ones. all removes all mobs, nametagged only nametagged ones and with the range paramter all mobs in a distance of the current player are removed."),
func=function(n,param)
local p = minetest.get_player_by_name(n)
local num=tonumber(param)
for _,o in pairs(minetest.luaentities) do
if o.is_mob then
if param == "all" or
( param == "nametagged" and o.nametag ) or
( param == "" and ( not o.nametag or o.nametag == "" ) and not o.tamed ) or
( num and num > 0 and vector.distance(p:get_pos(),o.object:get_pos()) <= num ) then
o.object:remove()
end
end
end
end})
----For Water Flowing:
local enable_physics = function(object, luaentity, ignore_check)
if luaentity.physical_state == false or ignore_check == true then
luaentity.physical_state = true
object:set_properties({
physical = true
})
object:set_velocity({x=0,y=0,z=0})
object:set_acceleration({x=0,y=-9.81,z=0})
end
end
local disable_physics = function(object, luaentity, ignore_check, reset_movement)
if luaentity.physical_state == true or ignore_check == true then
luaentity.physical_state = false
object:set_properties({
physical = false
})
if reset_movement ~= false then
object:set_velocity({x=0,y=0,z=0})
object:set_acceleration({x=0,y=0,z=0})
end
end
end
-- play sound
local mob_sound = function(self, soundname, is_opinion, fixed_pitch)
local soundinfo
if self.sounds_child and self.child then
soundinfo = self.sounds_child
elseif self.sounds then
soundinfo = self.sounds
end
if not soundinfo then
return
end
local sound = soundinfo[soundname]
if sound then
if is_opinion and self.opinion_sound_cooloff > 0 then
return
end
local pitch
if not fixed_pitch then
local base_pitch = soundinfo.base_pitch
if not base_pitch then
base_pitch = 1
end
if self.child and (not self.sounds_child) then
-- Children have higher pitch
pitch = base_pitch * 1.5
else
pitch = base_pitch
end
-- randomize the pitch a bit
pitch = pitch + random(-10, 10) * 0.005
end
minetest.sound_play(sound, {
object = self.object,
gain = 1.0,
max_hear_distance = self.sounds.distance,
pitch = pitch,
}, true)
self.opinion_sound_cooloff = 1
end
end
-- Return true if object is in view_range
local function object_in_range(self, object)
if not object then
return false
end
local factor
-- Apply view range reduction for special player armor
if object:is_player() then
local factors = mcl_armor.player_view_range_factors[object]
factor = factors and factors[self.name]
end
-- Distance check
local dist
if factor and factor == 0 then
return false
elseif factor then
dist = self.view_range * factor
else
dist = self.view_range
end
local p1, p2 = self.object:get_pos(), object:get_pos()
return p1 and p2 and (vector.distance(p1, p2) <= dist)
end
-- attack player/mob
local do_attack = function(self, player)
if self.state == "attack" or self.state == "die" then
return
end
self.attack = player
self.state = "attack"
-- TODO: Implement war_cry sound without being annoying
--if random(0, 100) < 90 then
--mob_sound(self, "war_cry", true)
--end
end
-- collision function borrowed amended from jordan4ibanez open_ai mod
local collision = function(self)
local pos = self.object:get_pos()
if not pos then return {0,0} end
local vel = self.object:get_velocity()
local x = 0
local z = 0
local width = -self.collisionbox[1] + self.collisionbox[4] + 0.5
for _,object in pairs(minetest.get_objects_inside_radius(pos, width)) do
local ent = object:get_luaentity()
if object:is_player() or (ent and ent.is_mob and object ~= self.object) then
local pos2 = object:get_pos()
local vec = {x = pos.x - pos2.x, z = pos.z - pos2.z}
local force = (width + 0.5) - vector.distance(
{x = pos.x, y = 0, z = pos.z},
{x = pos2.x, y = 0, z = pos2.z})
x = x + (vec.x * force)
z = z + (vec.z * force)
end
end
return({x,z})
end
-- move mob in facing direction
local set_velocity = function(self, v)
local c_x, c_y = 0, 0
-- can mob be pushed, if so calculate direction
if self.pushable then
c_x, c_y = unpack(collision(self))
end
-- halt mob if it has been ordered to stay
if self.order == "stand" or self.order == "sit" then
self.object:set_velocity({x = 0, y = 0, z = 0})
return
end
local yaw = (self.object:get_yaw() or 0) + self.rotate
local vv = self.object:get_velocity()
if vv then
self.object:set_velocity({
x = (sin(yaw) * -v) + c_x,
y = vv.y,
z = (cos(yaw) * v) + c_y,
})
end
end
-- calculate mob velocity
local get_velocity = function(self)
local v = self.object:get_velocity()
if v then
return (v.x * v.x + v.z * v.z) ^ 0.5
end
return 0
end
local function update_roll(self)
local is_Fleckenstein = self.nametag == "Fleckenstein"
local was_Fleckenstein = false
local rot = self.object:get_rotation()
rot.z = is_Fleckenstein and pi or 0
self.object:set_rotation(rot)
local cbox = table.copy(self.collisionbox)
local acbox = self.object:get_properties().collisionbox
if abs(cbox[2] - acbox[2]) > 0.1 then
was_Fleckenstein = true
end
if is_Fleckenstein ~= was_Fleckenstein then
local pos = self.object:get_pos()
pos.y = pos.y + (acbox[2] + acbox[5])
self.object:set_pos(pos)
end
if is_Fleckenstein then
cbox[2], cbox[5] = -cbox[5], -cbox[2]
self.object:set_properties({collisionbox = cbox})
-- This leads to child mobs having the wrong collisionbox
-- and seeing as it seems to be nothing but an easter egg
-- i've put it inside the if. Which just makes it be upside
-- down lol.
end
end
-- set and return valid yaw
local set_yaw = function(self, yaw, delay, dtime)
if self.noyaw then return end
if true then
self.object:set_yaw(yaw)
return yaw
end
if not yaw or yaw ~= yaw then
yaw = 0
end
delay = delay or 0
if delay == 0 then
if self.shaking and dtime then
yaw = yaw + (random() * 2 - 1) * 5 * dtime
end
self.object:set_yaw(yaw)
update_roll(self)
return yaw
end
self.target_yaw = yaw
self.delay = delay
return self.target_yaw
end
-- global function to set mob yaw
function mcl_mobs:yaw(self, yaw, delay, dtime)
set_yaw(self, yaw, delay, dtime)
end
local add_texture_mod = function(self, mod)
local full_mod = ""
local already_added = false
for i=1, #self.texture_mods do
if mod == self.texture_mods[i] then
already_added = true
end
full_mod = full_mod .. self.texture_mods[i]
end
if not already_added then
full_mod = full_mod .. mod
table.insert(self.texture_mods, mod)
end
self.object:set_texture_mod(full_mod)
end
local remove_texture_mod = function(self, mod)
local full_mod = ""
local remove = {}
for i=1, #self.texture_mods do
if self.texture_mods[i] ~= mod then
full_mod = full_mod .. self.texture_mods[i]
else
table.insert(remove, i)
end
end
for i=#remove, 1 do
table.remove(self.texture_mods, remove[i])
end
self.object:set_texture_mod(full_mod)
end
-- are we flying in what we are suppose to? (taikedz)
local flight_check = function(self)
local nod = self.standing_in
local def = minetest.registered_nodes[nod]
if not def then return false end -- nil check
local fly_in
if type(self.fly_in) == "string" then
fly_in = { self.fly_in }
elseif type(self.fly_in) == "table" then
fly_in = self.fly_in
else
return false
end
for _,checknode in pairs(fly_in) do
if nod == checknode then
return true
elseif checknode == "__airlike" or def.walkable == false and
(def.liquidtype == "none" or minetest.get_item_group(nod, "fake_liquid") == 1) then
return true
end
end
return false
end
-- set defined animation
local set_animation = function(self, anim, fixed_frame)
if not self.animation or not anim then
return
end
if self.state == "die" and anim ~= "die" and anim ~= "stand" then
return
end
if flight_check(self) and self.fly and anim == "walk" then anim = "fly" end
self._current_animation = self._current_animation or ""
if (anim == self._current_animation
or not self.animation[anim .. "_start"]
or not self.animation[anim .. "_end"]) and self.state ~= "die" then
return
end
self._current_animation = anim
local a_start = self.animation[anim .. "_start"]
local a_end
if fixed_frame then
a_end = a_start
else
a_end = self.animation[anim .. "_end"]
end
self.object:set_animation({
x = a_start,
y = a_end},
self.animation[anim .. "_speed"] or self.animation.speed_normal or 15,
0, self.animation[anim .. "_loop"] ~= false)
end
-- above function exported for mount.lua
function mcl_mobs:set_animation(self, anim)
set_animation(self, anim)
end
-- Returns true is node can deal damage to self
local is_node_dangerous = function(self, nodename)
local nn = nodename
if self.lava_damage > 0 then
if minetest.get_item_group(nn, "lava") ~= 0 then
return true
end
end
if self.fire_damage > 0 then
if minetest.get_item_group(nn, "fire") ~= 0 then
return true
end
end
if minetest.registered_nodes[nn] and minetest.registered_nodes[nn].damage_per_second and minetest.registered_nodes[nn].damage_per_second > 0 then
return true
end
return false
end
-- Returns true if node is a water hazard
local is_node_waterhazard = function(self, nodename)
local nn = nodename
if self.water_damage > 0 then
if minetest.get_item_group(nn, "water") ~= 0 then
return true
end
end
if minetest.registered_nodes[nn] and minetest.registered_nodes[nn].drowning and minetest.registered_nodes[nn].drowning > 0 then
if self.breath_max ~= -1 then
-- check if the mob is water-breathing _and_ the block is water; only return true if neither is the case
-- this will prevent water-breathing mobs to classify water or e.g. sand below them as dangerous
if not self.breathes_in_water and minetest.get_item_group(nn, "water") ~= 0 then
return true
end
end
end
return false
end
-- check line of sight (BrunoMine)
local line_of_sight = function(self, pos1, pos2, stepsize)
stepsize = stepsize or 1
local s, pos = minetest.line_of_sight(pos1, pos2, stepsize)
-- normal walking and flying mobs can see you through air
if s == true then
return true
end
-- New pos1 to be analyzed
local npos1 = {x = pos1.x, y = pos1.y, z = pos1.z}
local r, pos = minetest.line_of_sight(npos1, pos2, stepsize)
-- Checks the return
if r == true then return true end
-- Nodename found
local nn = minetest.get_node(pos).name
-- Target Distance (td) to travel
local td = vector.distance(pos1, pos2)
-- Actual Distance (ad) traveled
local ad = 0
-- It continues to advance in the line of sight in search of a real
-- obstruction which counts as 'normal' nodebox.
while minetest.registered_nodes[nn]
and minetest.registered_nodes[nn].walkable == false do
-- Check if you can still move forward
if td < ad + stepsize then
return true -- Reached the target
end
-- Moves the analyzed pos
local d = vector.distance(pos1, pos2)
npos1.x = ((pos2.x - pos1.x) / d * stepsize) + pos1.x
npos1.y = ((pos2.y - pos1.y) / d * stepsize) + pos1.y
npos1.z = ((pos2.z - pos1.z) / d * stepsize) + pos1.z
-- NaN checks
if d == 0
or npos1.x ~= npos1.x
or npos1.y ~= npos1.y
or npos1.z ~= npos1.z then
return false
end
ad = ad + stepsize
-- scan again
r, pos = minetest.line_of_sight(npos1, pos2, stepsize)
if r == true then return true end
-- New Nodename found
nn = minetest.get_node(pos).name
end
return false
end
-- custom particle effects
local effect = function(pos, amount, texture, min_size, max_size, radius, gravity, glow, go_down)
radius = radius or 2
min_size = min_size or 0.5
max_size = max_size or 1
gravity = gravity or -10
glow = glow or 0
go_down = go_down or false
local ym
if go_down then
ym = 0
else
ym = -radius
end
minetest.add_particlespawner({
amount = amount,
time = 0.25,
minpos = pos,
maxpos = pos,
minvel = {x = -radius, y = ym, z = -radius},
maxvel = {x = radius, y = radius, z = radius},
minacc = {x = 0, y = gravity, z = 0},
maxacc = {x = 0, y = gravity, z = 0},
minexptime = 0.1,
maxexptime = 1,
minsize = min_size,
maxsize = max_size,
texture = texture,
glow = glow,
})
end
local damage_effect = function(self, damage)
-- damage particles
if (not disable_blood) and damage > 0 then
local amount_large = floor(damage / 2)
local amount_small = damage % 2
local pos = self.object:get_pos()
pos.y = pos.y + (self.collisionbox[5] - self.collisionbox[2]) * .5
local texture = "mobs_blood.png"
-- full heart damage (one particle for each 2 HP damage)
if amount_large > 0 then
effect(pos, amount_large, texture, 2, 2, 1.75, 0, nil, true)
end
-- half heart damage (one additional particle if damage is an odd number)
if amount_small > 0 then
-- TODO: Use "half heart"
effect(pos, amount_small, texture, 1, 1, 1.75, 0, nil, true)
end
end
end
mcl_mobs.death_effect = function(pos, yaw, collisionbox, rotate)
local min, max
if collisionbox then
min = {x=collisionbox[1], y=collisionbox[2], z=collisionbox[3]}
max = {x=collisionbox[4], y=collisionbox[5], z=collisionbox[6]}
else
min = { x = -0.5, y = 0, z = -0.5 }
max = { x = 0.5, y = 0.5, z = 0.5 }
end
if rotate then
min = vector.rotate(min, {x=0, y=yaw, z=pi/2})
max = vector.rotate(max, {x=0, y=yaw, z=pi/2})
min, max = vector.sort(min, max)
min = vector.multiply(min, 0.5)
max = vector.multiply(max, 0.5)
end
minetest.add_particlespawner({
amount = 50,
time = 0.001,
minpos = vector.add(pos, min),
maxpos = vector.add(pos, max),
minvel = vector.new(-5,-5,-5),
maxvel = vector.new(5,5,5),
minexptime = 1.1,
maxexptime = 1.5,
minsize = 1,
maxsize = 2,
collisiondetection = false,
vertical = false,
texture = "mcl_particles_mob_death.png^[colorize:#000000:255",
})
minetest.sound_play("mcl_mobs_mob_poof", {
pos = pos,
gain = 1.0,
max_hear_distance = 8,
}, true)
end
local update_tag = function(self)
local tag
if mobs_debug then
tag = "nametag = '"..tostring(self.nametag).."'\n"..
"state = '"..tostring(self.state).."'\n"..
"order = '"..tostring(self.order).."'\n"..
"attack = "..tostring(self.attack).."\n"..
"health = "..tostring(self.health).."\n"..
"breath = "..tostring(self.breath).."\n"..
"gotten = "..tostring(self.gotten).."\n"..
"tamed = "..tostring(self.tamed).."\n"..
"horny = "..tostring(self.horny).."\n"..
"hornytimer = "..tostring(self.hornytimer).."\n"..
"runaway_timer = "..tostring(self.runaway_timer).."\n"..
"following = "..tostring(self.following)
else
tag = self.nametag
end
self.object:set_properties({
nametag = tag,
})
update_roll(self)
end
-- drop items
local item_drop = function(self, cooked, looting_level)
-- no drops if disabled by setting
if not mobs_drop_items then return end
looting_level = looting_level or 0
-- no drops for child mobs (except monster)
if (self.child and self.type ~= "monster") then
return
end
local obj, item, num
local pos = self.object:get_pos()
self.drops = self.drops or {} -- nil check
for n = 1, #self.drops do
local dropdef = self.drops[n]
local chance = 1 / dropdef.chance
local looting_type = dropdef.looting
if looting_level > 0 then
local chance_function = dropdef.looting_chance_function
if chance_function then
chance = chance_function(looting_level)
elseif looting_type == "rare" then
chance = chance + (dropdef.looting_factor or 0.01) * looting_level
end
end
local num = 0
local do_common_looting = (looting_level > 0 and looting_type == "common")
if random() < chance then
num = random(dropdef.min or 1, dropdef.max or 1)
elseif not dropdef.looting_ignore_chance then
do_common_looting = false
end
if do_common_looting then
num = num + floor(random(0, looting_level) + 0.5)
end
if num > 0 then
item = dropdef.name
-- cook items when true
if cooked then
local output = minetest.get_craft_result({
method = "cooking", width = 1, items = {item}})
if output and output.item and not output.item:is_empty() then
item = output.item:get_name()
end
end
-- add item if it exists
for x = 1, num do
obj = minetest.add_item(pos, ItemStack(item .. " " .. 1))
end
if obj and obj:get_luaentity() then
obj:set_velocity({
x = random(-10, 10) / 9,
y = 6,
z = random(-10, 10) / 9,
})
elseif obj then
obj:remove() -- item does not exist
end
end
end
self.drops = {}
end
-- check if mob is dead or only hurt
local check_for_death = function(self, cause, cmi_cause)
if self.state == "die" then
return true
end
-- has health actually changed?
if self.health == self.old_health and self.health > 0 then
return false
end
local damaged = self.health < self.old_health
self.old_health = self.health
-- still got some health?
if self.health > 0 then
-- make sure health isn't higher than max
if self.health > self.hp_max then
self.health = self.hp_max
end
-- play damage sound if health was reduced and make mob flash red.
if damaged then
add_texture_mod(self, "^[colorize:red:130")
minetest.after(.2, function(self)
if self and self.object then
remove_texture_mod(self, "^[colorize:red:130")
end
end, self)
mob_sound(self, "damage")
end
-- backup nametag so we can show health stats
if not self.nametag2 then
self.nametag2 = self.nametag or ""
end
if show_health
and (cmi_cause and cmi_cause.type == "punch") then
self.htimer = 2
self.nametag = "" .. self.health .. " / " .. self.hp_max
update_tag(self)
end
return false
end
mob_sound(self, "death")
local function death_handle(self)
-- dropped cooked item if mob died in fire or lava
if cause == "lava" or cause == "fire" then
item_drop(self, true, 0)
else
local wielditem = ItemStack()
if cause == "hit" then
local puncher = cmi_cause.puncher
if puncher then
wielditem = puncher:get_wielded_item()
end
end
local cooked = mcl_burning.is_burning(self.object) or mcl_enchanting.has_enchantment(wielditem, "fire_aspect")
local looting = mcl_enchanting.get_enchantment(wielditem, "looting")
item_drop(self, cooked, looting)
if ((not self.child) or self.type ~= "animal") and (minetest.get_us_time() - self.xp_timestamp <= 5000000) then
mcl_experience.throw_xp(self.object:get_pos(), random(self.xp_min, self.xp_max))
end
end
end
-- execute custom death function
if self.on_die then
local pos = self.object:get_pos()
local on_die_exit = self.on_die(self, pos, cmi_cause)
if on_die_exit ~= true then
death_handle(self)
end
if on_die_exit == true then
self.state = "die"
mcl_burning.extinguish(self.object)
self.object:remove()
return true
end
end
local collisionbox
if self.collisionbox then
collisionbox = table.copy(self.collisionbox)
end
self.state = "die"
self.attack = nil
self.v_start = false
self.fall_speed = DEFAULT_FALL_SPEED
self.timer = 0
self.blinktimer = 0
remove_texture_mod(self, "^[colorize:#FF000040")
remove_texture_mod(self, "^[brighten")
self.passive = true
self.object:set_properties({
pointable = false,
collide_with_objects = false,
})
set_velocity(self, 0)
local acc = self.object:get_acceleration()
acc.x, acc.y, acc.z = 0, DEFAULT_FALL_SPEED, 0
self.object:set_acceleration(acc)
local length
-- default death function and die animation (if defined)
if self.instant_death then
length = 0
elseif self.animation
and self.animation.die_start
and self.animation.die_end then
local frames = self.animation.die_end - self.animation.die_start
local speed = self.animation.die_speed or 15
length = max(frames / speed, 0) + DEATH_DELAY
set_animation(self, "die")
else
local rot = self.object:get_rotation()
rot.z = pi/2
self.object:set_rotation(rot)
length = 1 + DEATH_DELAY
set_animation(self, "stand", true)
end
-- Remove body after a few seconds and drop stuff
local kill = function(self)
if not self.object:get_luaentity() then
return
end
death_handle(self)
local dpos = self.object:get_pos()
local cbox = self.collisionbox
local yaw = self.object:get_rotation().y
mcl_burning.extinguish(self.object)
self.object:remove()
mcl_mobs.death_effect(dpos, yaw, cbox, not self.instant_death)
end
if length <= 0 then
kill(self)
else
minetest.after(length, kill, self)
end
return true
end
-- check if within physical map limits (-30911 to 30927)
local function within_limits(pos, radius)
local wmin, wmax = -30912, 30928
if mcl_vars then
if mcl_vars.mapgen_edge_min and mcl_vars.mapgen_edge_max then
wmin, wmax = mcl_vars.mapgen_edge_min, mcl_vars.mapgen_edge_max
end
end
if radius then
wmin = wmin - radius
wmax = wmax + radius
end
for _,v in pairs(pos) do
if v < wmin or v > wmax then return false end
end
return true
end
-- is mob facing a cliff or danger
local is_at_cliff_or_danger = function(self)
if self.fear_height == 0 then -- 0 for no falling protection!
return false
end
if not self.object:get_luaentity() then
return false
end
local yaw = self.object:get_yaw()
local dir_x = -sin(yaw) * (self.collisionbox[4] + 0.5)
local dir_z = cos(yaw) * (self.collisionbox[4] + 0.5)
local pos = self.object:get_pos()
local ypos = pos.y + self.collisionbox[2] -- just above floor
local free_fall, blocker = minetest.line_of_sight(
{x = pos.x + dir_x, y = ypos, z = pos.z + dir_z},
{x = pos.x + dir_x, y = ypos - self.fear_height, z = pos.z + dir_z})
if free_fall then
return true
else
local bnode = minetest.get_node(blocker)
local danger = is_node_dangerous(self, bnode.name)
if danger then
return true
else
local def = minetest.registered_nodes[bnode.name]
if def and def.walkable then
return false
end
end
end
return false
end
-- copy the 'mob facing cliff_or_danger check' from above, and rework to avoid water
local is_at_water_danger = function(self)
if not self.object:get_luaentity() then
return false
end
local yaw = self.object:get_yaw()
local dir_x = -sin(yaw) * (self.collisionbox[4] + 0.5)
local dir_z = cos(yaw) * (self.collisionbox[4] + 0.5)
local pos = self.object:get_pos()
local ypos = pos.y + self.collisionbox[2] -- just above floor
local free_fall, blocker = minetest.line_of_sight(
{x = pos.x + dir_x, y = ypos, z = pos.z + dir_z},
{x = pos.x + dir_x, y = ypos - 3, z = pos.z + dir_z})
if free_fall then
return true
else
local bnode = minetest.get_node(blocker)
local waterdanger = is_node_waterhazard(self, bnode.name)
if
waterdanger and (is_node_waterhazard(self, self.standing_in) or is_node_waterhazard(self, self.standing_on)) then
return false
elseif waterdanger and (is_node_waterhazard(self, self.standing_in) or is_node_waterhazard(self, self.standing_on)) == false then
return true
else
local def = minetest.registered_nodes[bnode.name]
if def and def.walkable then
return false
end
end
end
return false
end
-- get node but use fallback for nil or unknown
local node_ok = function(pos, fallback)
fallback = fallback or mcl_mobs.fallback_node
local node = minetest.get_node_or_nil(pos)
if node and minetest.registered_nodes[node.name] then
return node
end
return minetest.registered_nodes[fallback]
end
-- environmental damage (water, lava, fire, light etc.)
local do_env_damage = function(self)
-- feed/tame text timer (so mob 'full' messages dont spam chat)
if self.htimer > 0 then
self.htimer = self.htimer - 1
end
-- reset nametag after showing health stats
if self.htimer < 1 and self.nametag2 then
self.nametag = self.nametag2
self.nametag2 = nil
update_tag(self)
end
local pos = self.object:get_pos()
self.time_of_day = minetest.get_timeofday()
-- remove mob if beyond map limits
if not within_limits(pos, 0) then
mcl_burning.extinguish(self.object)
self.object:remove()
return true
end
-- Deal light damage to mob, returns true if mob died
local deal_light_damage = function(self, pos, damage)
if not ((mcl_weather.rain.raining or mcl_weather.state == "snow") and mcl_weather.is_outdoor(pos)) then
self.health = self.health - damage
effect(pos, 5, "mcl_particles_smoke.png")
if check_for_death(self, "light", {type = "light"}) then
return true
end
end
end
local sunlight = 10
if within_limits(pos,0) then
sunlight = minetest.get_natural_light(pos, self.time_of_day)
end
-- bright light harms mob
if self.light_damage ~= 0 and (sunlight or 0) > 12 then
if deal_light_damage(self, pos, self.light_damage) then
return true
end
end
local _, dim = mcl_worlds.y_to_layer(pos.y)
if (self.sunlight_damage ~= 0 or self.ignited_by_sunlight) and (sunlight or 0) >= minetest.LIGHT_MAX and dim == "overworld" then
if self.ignited_by_sunlight then
mcl_burning.set_on_fire(self.object, 10)
else
deal_light_damage(self, pos, self.sunlight_damage)
return true
end
end
local y_level = self.collisionbox[2]
if self.child then
y_level = self.collisionbox[2] * 0.5
end
-- what is mob standing in?
pos.y = pos.y + y_level + 0.25 -- foot level
local pos2 = {x=pos.x, y=pos.y-1, z=pos.z}
self.standing_in = node_ok(pos, "air").name
self.standing_on = node_ok(pos2, "air").name
-- don't fall when on ignore, just stand still
if self.standing_in == "ignore" then
self.object:set_velocity({x = 0, y = 0, z = 0})
end
local nodef = minetest.registered_nodes[self.standing_in]
-- rain
if self.rain_damage > 0 then
if mcl_weather.rain.raining and mcl_weather.is_outdoor(pos) then
self.health = self.health - self.rain_damage
if check_for_death(self, "rain", {type = "environment",
pos = pos, node = self.standing_in}) then
return true
end
end
end
pos.y = pos.y + 1 -- for particle effect position
-- water damage
if self.water_damage > 0
and nodef.groups.water then
if self.water_damage ~= 0 then
self.health = self.health - self.water_damage
effect(pos, 5, "mcl_particles_smoke.png", nil, nil, 1, nil)
if check_for_death(self, "water", {type = "environment",
pos = pos, node = self.standing_in}) then
return true
end
end
-- lava damage
elseif self.lava_damage > 0
and (nodef.groups.lava) then
if self.lava_damage ~= 0 then
self.health = self.health - self.lava_damage
effect(pos, 5, "fire_basic_flame.png", nil, nil, 1, nil)
if check_for_death(self, "lava", {type = "environment",
pos = pos, node = self.standing_in}) then
return true
end
end
-- fire damage
elseif self.fire_damage > 0
and (nodef.groups.fire) then
if self.fire_damage ~= 0 then
self.health = self.health - self.fire_damage
effect(pos, 5, "fire_basic_flame.png", nil, nil, 1, nil)
if check_for_death(self, "fire", {type = "environment",
pos = pos, node = self.standing_in}) then
return true
end
end
-- damage_per_second node check
elseif nodef.damage_per_second ~= 0 and not nodef.groups.lava and not nodef.groups.fire then
self.health = self.health - nodef.damage_per_second
effect(pos, 5, "mcl_particles_smoke.png")
if check_for_death(self, "dps", {type = "environment",
pos = pos, node = self.standing_in}) then
return true
end
end
-- Drowning damage
if self.breath_max ~= -1 then
local drowning = false
if self.breathes_in_water then
if minetest.get_item_group(self.standing_in, "water") == 0 then
drowning = true
end
elseif nodef.drowning > 0 then
drowning = true
end
if drowning then
self.breath = max(0, self.breath - 1)
effect(pos, 2, "bubble.png", nil, nil, 1, nil)
if self.breath <= 0 then
local dmg
if nodef.drowning > 0 then
dmg = nodef.drowning
else
dmg = 4
end
damage_effect(self, dmg)
self.health = self.health - dmg
end
if check_for_death(self, "drowning", {type = "environment",
pos = pos, node = self.standing_in}) then
return true
end
else
self.breath = min(self.breath_max, self.breath + 1)
end
end
--- suffocation inside solid node
-- FIXME: Redundant with mcl_playerplus
if (self.suffocation == true)
and (nodef.walkable == nil or nodef.walkable == true)
and (nodef.collision_box == nil or nodef.collision_box.type == "regular")
and (nodef.node_box == nil or nodef.node_box.type == "regular")
and (nodef.groups.disable_suffocation ~= 1)
and (nodef.groups.opaque == 1) then
-- Short grace period before starting to take suffocation damage.
-- This is different from players, who take damage instantly.
-- This has been done because mobs might briefly be inside solid nodes
-- when e.g. climbing up stairs.
-- This is a bit hacky because it assumes that do_env_damage
-- is called roughly every second only.
self.suffocation_timer = self.suffocation_timer + 1
if self.suffocation_timer >= 3 then
-- 2 damage per second
-- TODO: Deal this damage once every 1/2 second
self.health = self.health - 2
if check_for_death(self, "suffocation", {type = "environment",
pos = pos, node = self.standing_in}) then
return true
end
end
else
self.suffocation_timer = 0
end
return check_for_death(self, "", {type = "unknown"})
end
-- jump if facing a solid node (not fences or gates)
local do_jump = function(self)
if not self.jump
or self.jump_height == 0
or self.fly
or (self.child and self.type ~= "monster")
or self.order == "stand" then
return false
end
self.facing_fence = false
-- something stopping us while moving?
if self.state ~= "stand"
and get_velocity(self) > 0.5
and self.object:get_velocity().y ~= 0 then
return false
end
local pos = self.object:get_pos()
local yaw = self.object:get_yaw()
-- what is mob standing on?
pos.y = pos.y + self.collisionbox[2] - 0.2
local nod = node_ok(pos)
if minetest.registered_nodes[nod.name].walkable == false then
return false
end
-- where is front
local dir_x = -sin(yaw) * (self.collisionbox[4] + 0.5)
local dir_z = cos(yaw) * (self.collisionbox[4] + 0.5)
-- what is in front of mob?
nod = node_ok({
x = pos.x + dir_x,
y = pos.y + 0.5,
z = pos.z + dir_z
})
-- this is used to detect if there's a block on top of the block in front of the mob.
-- If there is, there is no point in jumping as we won't manage.
local nodTop = node_ok({
x = pos.x + dir_x,
y = pos.y + 1.5,
z = pos.z + dir_z
}, "air")
-- we don't attempt to jump if there's a stack of blocks blocking
if minetest.registered_nodes[nodTop.name].walkable == true then
return false
end
-- thin blocks that do not need to be jumped
if nod.name == node_snow then
return false
end
local ndef = minetest.registered_nodes[nod.name]
if self.walk_chance == 0 or ndef and ndef.walkable then
if minetest.get_item_group(nod.name, "fence") == 0
and minetest.get_item_group(nod.name, "fence_gate") == 0
and minetest.get_item_group(nod.name, "wall") == 0 then
local v = self.object:get_velocity()
v.y = self.jump_height
set_animation(self, "jump") -- only when defined
self.object:set_velocity(v)
-- when in air move forward
minetest.after(0.3, function(self, v)
if (not self.object) or (not self.object:get_luaentity()) or (self.state == "die") then
return
end
self.object:set_acceleration({
x = v.x * 2,
y = -10,
z = v.z * 2,
})
end, self, v)
if self.jump_sound_cooloff <= 0 then
mob_sound(self, "jump")
self.jump_sound_cooloff = 0.5
end
else
self.facing_fence = true
end
-- if we jumped against a block/wall 4 times then turn
if self.object:get_velocity().x ~= 0
and self.object:get_velocity().z ~= 0 then
self.jump_count = (self.jump_count or 0) + 1
if self.jump_count == 4 then
local yaw = self.object:get_yaw() or 0
yaw = set_yaw(self, yaw + 1.35, 8)
self.jump_count = 0
end
end
return true
end
return false
end
-- blast damage to entities nearby
local entity_physics = function(pos, radius)
radius = radius * 2
local objs = minetest.get_objects_inside_radius(pos, radius)
local obj_pos, dist
for n = 1, #objs do
obj_pos = objs[n]:get_pos()
dist = vector.distance(pos, obj_pos)
if dist < 1 then dist = 1 end
local damage = floor((4 / dist) * radius)
local ent = objs[n]:get_luaentity()
-- punches work on entities AND players
objs[n]:punch(objs[n], 1.0, {
full_punch_interval = 1.0,
damage_groups = {fleshy = damage},
}, pos)
end
end
-- should mob follow what I'm holding ?
local follow_holding = function(self, clicker)
if self.nofollow then return false end
if mcl_mobs.invis[clicker:get_player_name()] then
return false
end
local item = clicker:get_wielded_item()
local t = type(self.follow)
-- single item
if t == "string"
and item:get_name() == self.follow then
return true
-- multiple items
elseif t == "table" then
for no = 1, #self.follow do
if self.follow[no] == item:get_name() then
return true
end
end
end
return false
end
-- find two animals of same type and breed if nearby and horny
local breed = function(self)
-- child takes a long time before growing into adult
if self.child == true then
-- When a child, hornytimer is used to count age until adulthood
self.hornytimer = self.hornytimer + 1
if self.hornytimer >= CHILD_GROW_TIME then
self.child = false
self.hornytimer = 0
self.object:set_properties({
textures = self.base_texture,
mesh = self.base_mesh,
visual_size = self.base_size,
collisionbox = self.base_colbox,
selectionbox = self.base_selbox,
})
-- custom function when child grows up
if self.on_grown then
self.on_grown(self)
else
-- jump when fully grown so as not to fall into ground
self.object:set_velocity({
x = 0,
y = self.jump_height,
z = 0
})
end
end
return
end
-- horny animal can mate for HORNY_TIME seconds,
-- afterwards horny animal cannot mate again for HORNY_AGAIN_TIME seconds
if self.horny == true
and self.hornytimer < HORNY_TIME + HORNY_AGAIN_TIME then
self.hornytimer = self.hornytimer + 1
if self.hornytimer >= HORNY_TIME + HORNY_AGAIN_TIME then
self.hornytimer = 0
self.horny = false
end
end
-- find another same animal who is also horny and mate if nearby
if self.horny == true
and self.hornytimer <= HORNY_TIME then
local pos = self.object:get_pos()
effect({x = pos.x, y = pos.y + 1, z = pos.z}, 8, "heart.png", 3, 4, 1, 0.1)
local objs = minetest.get_objects_inside_radius(pos, 3)
local num = 0
local ent = nil
for n = 1, #objs do
ent = objs[n]:get_luaentity()
-- check for same animal with different colour
local canmate = false
if ent then
if ent.name == self.name then
canmate = true
else
local entname = string.split(ent.name,":")
local selfname = string.split(self.name,":")
if entname[1] == selfname[1] then
entname = string.split(entname[2],"_")
selfname = string.split(selfname[2],"_")
if entname[1] == selfname[1] then
canmate = true
end
end
end
end
if ent
and canmate == true
and ent.horny == true
and ent.hornytimer <= HORNY_TIME then
num = num + 1
end
-- found your mate? then have a baby
if num > 1 then
self.hornytimer = HORNY_TIME + 1
ent.hornytimer = HORNY_TIME + 1
-- spawn baby
minetest.after(5, function(parent1, parent2, pos)
if not parent1.object:get_luaentity() then
return
end
if not parent2.object:get_luaentity() then
return
end
mcl_experience.throw_xp(pos, random(1, 7))
-- custom breed function
if parent1.on_breed then
-- when false, skip going any further
if parent1.on_breed(parent1, parent2) == false then
return
end
end
local child = mcl_mobs:spawn_child(pos, parent1.name)
local ent_c = child:get_luaentity()
-- Use texture of one of the parents
local p = random(1, 2)
if p == 1 then
ent_c.base_texture = parent1.base_texture
else
ent_c.base_texture = parent2.base_texture
end
child:set_properties({
textures = ent_c.base_texture
})
-- tamed and owned by parents' owner
ent_c.tamed = true
ent_c.owner = parent1.owner
end, self, ent, pos)
num = 0
break
end
end
end
end
-- find and replace what mob is looking for (grass, wheat etc.)
local replace = function(self, pos)
if not self.replace_rate
or not self.replace_what
or self.child == true
or self.object:get_velocity().y ~= 0
or random(1, self.replace_rate) > 1 then
return
end
local what, with, y_offset
if type(self.replace_what[1]) == "table" then
local num = random(#self.replace_what)
what = self.replace_what[num][1] or ""
with = self.replace_what[num][2] or ""
y_offset = self.replace_what[num][3] or 0
else
what = self.replace_what
with = self.replace_with or ""
y_offset = self.replace_offset or 0
end
pos.y = pos.y + y_offset
local node = minetest.get_node(pos)
if node.name == what then
local oldnode = {name = what, param2 = node.param2}
local newnode = {name = with, param2 = node.param2}
local on_replace_return
if self.on_replace then
on_replace_return = self.on_replace(self, pos, oldnode, newnode)
end
if on_replace_return ~= false then
if mobs_griefing then
minetest.set_node(pos, newnode)
end
end
end
end
-- check if daytime and also if mob is docile during daylight hours
local day_docile = function(self)
if self.docile_by_day == false then
return false
elseif self.docile_by_day == true
and self.time_of_day > 0.2
and self.time_of_day < 0.8 then
return true
end
end
local los_switcher = false
local height_switcher = false
-- path finding and smart mob routine by rnd, line_of_sight and other edits by Elkien3
local smart_mobs = function(self, s, p, dist, dtime)
local s1 = self.path.lastpos
local target_pos = self.attack:get_pos()
-- is it becoming stuck?
if abs(s1.x - s.x) + abs(s1.z - s.z) < .5 then
self.path.stuck_timer = self.path.stuck_timer + dtime
else
self.path.stuck_timer = 0
end
self.path.lastpos = {x = s.x, y = s.y, z = s.z}
local use_pathfind = false
local has_lineofsight = minetest.line_of_sight(
{x = s.x, y = (s.y) + .5, z = s.z},
{x = target_pos.x, y = (target_pos.y) + 1.5, z = target_pos.z}, .2)
-- im stuck, search for path
if not has_lineofsight then
if los_switcher == true then
use_pathfind = true
los_switcher = false
end -- cannot see target!
else
if los_switcher == false then
los_switcher = true
use_pathfind = false
minetest.after(1, function(self)
if not self.object:get_luaentity() then
return
end
if has_lineofsight then self.path.following = false end
end, self)
end -- can see target!
end
if (self.path.stuck_timer > stuck_timeout and not self.path.following) then
use_pathfind = true
self.path.stuck_timer = 0
minetest.after(1, function(self)
if not self.object:get_luaentity() then
return
end
if has_lineofsight then self.path.following = false end
end, self)
end
if (self.path.stuck_timer > stuck_path_timeout and self.path.following) then
use_pathfind = true
self.path.stuck_timer = 0
minetest.after(1, function(self)
if not self.object:get_luaentity() then
return
end
if has_lineofsight then self.path.following = false end
end, self)
end
if abs(vector.subtract(s,target_pos).y) > self.stepheight then
if height_switcher then
use_pathfind = true
height_switcher = false
end
else
if not height_switcher then
use_pathfind = false
height_switcher = true
end
end
if use_pathfind then
-- lets try find a path, first take care of positions
-- since pathfinder is very sensitive
local sheight = self.collisionbox[5] - self.collisionbox[2]
-- round position to center of node to avoid stuck in walls
-- also adjust height for player models!
s.x = floor(s.x + 0.5)
s.z = floor(s.z + 0.5)
local ssight, sground = minetest.line_of_sight(s, {
x = s.x, y = s.y - 4, z = s.z}, 1)
-- determine node above ground
if not ssight then
s.y = sground.y + 1
end
local p1 = self.attack:get_pos()
p1.x = floor(p1.x + 0.5)
p1.y = floor(p1.y + 0.5)
p1.z = floor(p1.z + 0.5)
local dropheight = 12
if self.fear_height ~= 0 then dropheight = self.fear_height end
local jumpheight = 0
if self.jump and self.jump_height >= 4 then
jumpheight = min(ceil(self.jump_height / 4), 4)
elseif self.stepheight > 0.5 then
jumpheight = 1
end
self.path.way = minetest.find_path(s, p1, 16, jumpheight, dropheight, "A*_noprefetch")
self.state = ""
do_attack(self, self.attack)
-- no path found, try something else
if not self.path.way then
self.path.following = false
-- lets make way by digging/building if not accessible
if self.pathfinding == 2 and mobs_griefing then
-- is player higher than mob?
if s.y < p1.y then
-- build upwards
if not minetest.is_protected(s, "") then
local ndef1 = minetest.registered_nodes[self.standing_in]
if ndef1 and (ndef1.buildable_to or ndef1.groups.liquid) then
minetest.set_node(s, {name = mcl_mobs.fallback_node})
end
end
local sheight = ceil(self.collisionbox[5]) + 1
-- assume mob is 2 blocks high so it digs above its head
s.y = s.y + sheight
-- remove one block above to make room to jump
if not minetest.is_protected(s, "") then
local node1 = node_ok(s, "air").name
local ndef1 = minetest.registered_nodes[node1]
if node1 ~= "air"
and node1 ~= "ignore"
and ndef1
and not ndef1.groups.level
and not ndef1.groups.unbreakable
and not ndef1.groups.liquid then
minetest.set_node(s, {name = "air"})
minetest.add_item(s, ItemStack(node1))
end
end
s.y = s.y - sheight
self.object:set_pos({x = s.x, y = s.y + 2, z = s.z})
else -- dig 2 blocks to make door toward player direction
local yaw1 = self.object:get_yaw() + pi / 2
local p1 = {
x = s.x + cos(yaw1),
y = s.y,
z = s.z + sin(yaw1)
}
if not minetest.is_protected(p1, "") then
local node1 = node_ok(p1, "air").name
local ndef1 = minetest.registered_nodes[node1]
if node1 ~= "air"
and node1 ~= "ignore"
and ndef1
and not ndef1.groups.level
and not ndef1.groups.unbreakable
and not ndef1.groups.liquid then
minetest.add_item(p1, ItemStack(node1))
minetest.set_node(p1, {name = "air"})
end
p1.y = p1.y + 1
node1 = node_ok(p1, "air").name
ndef1 = minetest.registered_nodes[node1]
if node1 ~= "air"
and node1 ~= "ignore"
and ndef1
and not ndef1.groups.level
and not ndef1.groups.unbreakable
and not ndef1.groups.liquid then
minetest.add_item(p1, ItemStack(node1))
minetest.set_node(p1, {name = "air"})
end
end
end
end
-- will try again in 2 seconds
self.path.stuck_timer = stuck_timeout - 2
elseif s.y < p1.y and (not self.fly) then
do_jump(self) --add jump to pathfinding
self.path.following = true
-- Yay, I found path!
-- TODO: Implement war_cry sound without being annoying
--mob_sound(self, "war_cry", true)
else
set_velocity(self, self.walk_velocity)
-- follow path now that it has it
self.path.following = true
end
end
end
-- specific attacks
local specific_attack = function(list, what)
-- no list so attack default (player, animals etc.)
if list == nil then
return true
end
-- found entity on list to attack?
for no = 1, #list do
if list[no] == what then
return true
end
end
return false
end
-- find someone to attack
local monster_attack = function(self)
if not damage_enabled
or minetest.is_creative_enabled("")
or self.passive ~= false
or self.state == "attack"
or day_docile(self) then
return
end
local s = self.object:get_pos()
local p, sp, dist
local player, obj, min_player
local type, name = "", ""
local min_dist = self.view_range + 1
local objs = minetest.get_objects_inside_radius(s, self.view_range)
for n = 1, #objs do
if objs[n]:is_player() then
if mcl_mobs.invis[ objs[n]:get_player_name() ] or (not object_in_range(self, objs[n])) then
type = ""
elseif (self.type == "monster" or self._aggro) then
player = objs[n]
type = "player"
name = "player"
end
else
obj = objs[n]:get_luaentity()
if obj then
player = obj.object
type = obj.type
name = obj.name or ""
end
end
-- find specific mob to attack, failing that attack player/npc/animal
if specific_attack(self.specific_attack, name)
and (type == "player" or ( type == "npc" and self.attack_npcs )
or (type == "animal" and self.attack_animals == true)) then
p = player:get_pos()
sp = s
dist = vector.distance(p, s)
-- aim higher to make looking up hills more realistic
p.y = p.y + 1
sp.y = sp.y + 1
-- choose closest player to attack
if dist < min_dist
and line_of_sight(self, sp, p, 2) == true then
min_dist = dist
min_player = player
end
end
end
-- attack player
if min_player then
do_attack(self, min_player)
end
end
-- npc, find closest monster to attack
local npc_attack = function(self)
if self.type ~= "npc"
or not self.attacks_monsters
or self.state == "attack" then
return
end
local p, sp, obj, min_player
local s = self.object:get_pos()
local min_dist = self.view_range + 1
local objs = minetest.get_objects_inside_radius(s, self.view_range)
for n = 1, #objs do
obj = objs[n]:get_luaentity()
if obj and obj.type == "monster" then
p = obj.object:get_pos()
sp = s
local dist = vector.distance(p, s)
-- aim higher to make looking up hills more realistic
p.y = p.y + 1
sp.y = sp.y + 1
if dist < min_dist
and line_of_sight(self, sp, p, 2) == true then
min_dist = dist
min_player = obj.object
end
end
end
if min_player then
do_attack(self, min_player)
end
end
-- specific runaway
local specific_runaway = function(list, what)
-- no list so do not run
if list == nil then
return false
end
-- found entity on list to attack?
for no = 1, #list do
if list[no] == what then
return true
end
end
return false
end
-- find someone to runaway from
local runaway_from = function(self)
if not self.runaway_from and self.state ~= "flop" then
return
end
local s = self.object:get_pos()
local p, sp, dist
local player, obj, min_player
local type, name = "", ""
local min_dist = self.view_range + 1
local objs = minetest.get_objects_inside_radius(s, self.view_range)
for n = 1, #objs do
if objs[n]:is_player() then
if mcl_mobs.invis[ objs[n]:get_player_name() ]
or self.owner == objs[n]:get_player_name()
or (not object_in_range(self, objs[n])) then
type = ""
else
player = objs[n]
type = "player"
name = "player"
end
else
obj = objs[n]:get_luaentity()
if obj then
player = obj.object
type = obj.type
name = obj.name or ""
end
end
-- find specific mob to runaway from
if name ~= "" and name ~= self.name
and specific_runaway(self.runaway_from, name) then
p = player:get_pos()
sp = s
-- aim higher to make looking up hills more realistic
p.y = p.y + 1
sp.y = sp.y + 1
dist = vector.distance(p, s)
-- choose closest player/mpb to runaway from
if dist < min_dist
and line_of_sight(self, sp, p, 2) == true then
min_dist = dist
min_player = player
end
end
end
if min_player then
local lp = player:get_pos()
local vec = {
x = lp.x - s.x,
y = lp.y - s.y,
z = lp.z - s.z
}
local yaw = (atan(vec.z / vec.x) + 3 * pi / 2) - self.rotate
if lp.x > s.x then
yaw = yaw + pi
end
yaw = set_yaw(self, yaw, 4)
self.state = "runaway"
self.runaway_timer = 3
self.following = nil
end
end
-- follow player if owner or holding item, if fish outta water then flop
local follow_flop = function(self)
-- find player to follow
if (self.follow ~= ""
or self.order == "follow")
and not self.following
and self.state ~= "attack"
and self.order ~= "sit"
and self.state ~= "runaway" then
local s = self.object:get_pos()
local players = minetest.get_connected_players()
for n = 1, #players do
if (object_in_range(self, players[n]))
and not mcl_mobs.invis[ players[n]:get_player_name() ] then
self.following = players[n]
break
end
end
end
if self.type == "npc"
and self.order == "follow"
and self.state ~= "attack"
and self.order ~= "sit"
and self.owner ~= "" then
-- npc stop following player if not owner
if self.following
and self.owner
and self.owner ~= self.following:get_player_name() then
self.following = nil
end
else
-- stop following player if not holding specific item,
-- mob is horny, fleeing or attacking
if self.following
and self.following:is_player()
and (follow_holding(self, self.following) == false or
self.horny or self.state == "runaway") then
self.following = nil
end
end
-- follow that thing
if self.following then
local s = self.object:get_pos()
local p
if self.following:is_player() then
p = self.following:get_pos()
elseif self.following.object then
p = self.following.object:get_pos()
end
if p then
local dist = vector.distance(p, s)
-- dont follow if out of range
if (not object_in_range(self, self.following)) then
self.following = nil
else
local vec = {
x = p.x - s.x,
z = p.z - s.z
}
local yaw = (atan(vec.z / vec.x) + pi / 2) - self.rotate
if p.x > s.x then yaw = yaw + pi end
set_yaw(self, yaw, 2.35)
-- anyone but standing npc's can move along
if dist > 3
and self.order ~= "stand" then
set_velocity(self, self.follow_velocity)
if self.walk_chance ~= 0 then
set_animation(self, "run")
end
else
set_velocity(self, 0)
set_animation(self, "stand")
end
return
end
end
end
-- swimmers flop when out of their element, and swim again when back in
if self.fly then
local s = self.object:get_pos()
if not flight_check(self, s) then
self.state = "flop"
self.object:set_acceleration({x = 0, y = DEFAULT_FALL_SPEED, z = 0})
local sdef = minetest.registered_nodes[self.standing_on]
-- Flop on ground
if sdef and sdef.walkable then
mob_sound(self, "flop")
self.object:set_velocity({
x = random(-FLOP_HOR_SPEED, FLOP_HOR_SPEED),
y = FLOP_HEIGHT,
z = random(-FLOP_HOR_SPEED, FLOP_HOR_SPEED),
})
end
set_animation(self, "stand", true)
return
elseif self.state == "flop" then
self.state = "stand"
self.object:set_acceleration({x = 0, y = 0, z = 0})
set_velocity(self, 0)
end
end
end
-- dogshoot attack switch and counter function
local dogswitch = function(self, dtime)
-- switch mode not activated
if not self.dogshoot_switch
or not dtime then
return 0
end
self.dogshoot_count = self.dogshoot_count + dtime
if (self.dogshoot_switch == 1
and self.dogshoot_count > self.dogshoot_count_max)
or (self.dogshoot_switch == 2
and self.dogshoot_count > self.dogshoot_count2_max) then
self.dogshoot_count = 0
if self.dogshoot_switch == 1 then
self.dogshoot_switch = 2
else
self.dogshoot_switch = 1
end
end
return self.dogshoot_switch
end
local function go_to_pos(entity,b)
if not entity then return end
local s=entity.object:get_pos()
if not b then
--self.state = "stand"
return end
if vector.distance(b,s) < 1 then
--set_velocity(entity,0)
return true
end
local v = { x = b.x - s.x, z = b.z - s.z }
local yaw = (atann(v.z / v.x) + pi / 2) - entity.rotate
if b.x > s.x then yaw = yaw + pi end
entity.object:set_yaw(yaw)
set_velocity(entity,entity.follow_velocity)
mcl_mobs:set_animation(entity, "walk")
end
local function check_doors(self)
local p = self.object:get_pos()
local t = minetest.get_timeofday()
local dd = minetest.find_nodes_in_area(vector.offset(p,-1,-1,-1),vector.offset(p,1,1,1),{"group:door"})
for _,d in pairs(dd) do
local n = minetest.get_node(d)
if n.name:find("_b_") then
local def = minetest.registered_nodes[n.name]
local closed = n.name:find("_b_1")
if t < 0.3 or t > 0.8 then
if not closed and def.on_rightclick then def.on_rightclick(d,n,self) end
else
if closed and def.on_rightclick then def.on_rightclick(d,n,self) end
end
end
end
end
local gowp_etime = 0
local function check_gowp(self,dtime)
gowp_etime = gowp_etime + dtime
if gowp_etime < 0.2 then return end
gowp_etime = 0
local p = self.object:get_pos()
if not p or not self._target then return end
if vector.distance(p,self._target) < 1 then
self.waypoints = nil
self._target = nil
self.current_target = nil
self.state = "stand"
if self.callback_arrived then return self.callback_arrived(self) end
return true
end
if self.waypoints and ( not self.current_target or vector.distance(p,self.current_target) < 2 ) then
self.current_target = table.remove(self.waypoints, 1)
--minetest.log("nextwp:".. tostring(self.current_target) )
go_to_pos(self,self.current_target)
return
elseif self.current_target then
go_to_pos(self,self.current_target)
end
if self.current_target and not minetest.line_of_sight(self.object:get_pos(),self.current_target) then
self.waypoints=minetest.find_path(p,self._target,150,1,4)
if not self.waypoints then self.state = "walk" end --give up
self.current_target = nil
return
end
if not self.current_target then
--minetest.log("no path")
self.state = "walk"
end
end
-- execute current state (stand, walk, run, attacks)
-- returns true if mob has died
local do_states = function(self, dtime)
if self.can_open_doors then check_doors(self) end
local yaw = self.object:get_yaw() or 0
if self.state == "stand" then
if random(1, 4) == 1 then
local s = self.object:get_pos()
local objs = minetest.get_objects_inside_radius(s, 3)
local lp
for n = 1, #objs do
if objs[n]:is_player() then
lp = objs[n]:get_pos()
break
end
end
-- look at any players nearby, otherwise turn randomly
if lp and self.look_at_players then
local vec = {
x = lp.x - s.x,
z = lp.z - s.z
}
yaw = (atan(vec.z / vec.x) + pi / 2) - self.rotate
if lp.x > s.x then yaw = yaw + pi end
else
yaw = yaw + random(-0.5, 0.5)
end
yaw = set_yaw(self, yaw, 8)
end
if self.order == "sit" then
set_animation(self, "sit")
set_velocity(self, 0)
else
set_animation(self, "stand")
set_velocity(self, 0)
end
-- npc's ordered to stand stay standing
if self.type ~= "npc"
or self.order ~= "stand" then
if self.walk_chance ~= 0
and self.facing_fence ~= true
and random(1, 100) <= self.walk_chance
and is_at_cliff_or_danger(self) == false then
set_velocity(self, self.walk_velocity)
self.state = "walk"
set_animation(self, "walk")
end
end
elseif self.state == "gowp" then
check_gowp(self,dtime)
elseif self.state == "walk" then
local s = self.object:get_pos()
local lp = nil
-- is there something I need to avoid?
if (self.water_damage > 0
and self.lava_damage > 0)
or self.breath_max ~= -1 then
lp = minetest.find_node_near(s, 1, {"group:water", "group:lava"})
elseif self.water_damage > 0 then
lp = minetest.find_node_near(s, 1, {"group:water"})
elseif self.lava_damage > 0 then
lp = minetest.find_node_near(s, 1, {"group:lava"})
elseif self.fire_damage > 0 then
lp = minetest.find_node_near(s, 1, {"group:fire"})
end
local is_in_danger = false
if lp then
-- If mob in or on dangerous block, look for land
if (is_node_dangerous(self, self.standing_in) or
is_node_dangerous(self, self.standing_on)) or (is_node_waterhazard(self, self.standing_in) or is_node_waterhazard(self, self.standing_on)) and (not self.fly) then
is_in_danger = true
-- If mob in or on dangerous block, look for land
if is_in_danger then
-- Better way to find shore - copied from upstream
lp = minetest.find_nodes_in_area_under_air(
{x = s.x - 5, y = s.y - 0.5, z = s.z - 5},
{x = s.x + 5, y = s.y + 1, z = s.z + 5},
{"group:solid"})
lp = #lp > 0 and lp[random(#lp)]
-- did we find land?
if lp then
local vec = {
x = lp.x - s.x,
z = lp.z - s.z
}
yaw = (atan(vec.z / vec.x) + pi / 2) - self.rotate
if lp.x > s.x then yaw = yaw + pi end
-- look towards land and move in that direction
yaw = set_yaw(self, yaw, 6)
set_velocity(self, self.walk_velocity)
end
end
-- A danger is near but mob is not inside
else
-- Randomly turn
if random(1, 100) <= 30 then
yaw = yaw + random(-0.5, 0.5)
yaw = set_yaw(self, yaw, 8)
end
end
yaw = set_yaw(self, yaw, 8)
-- otherwise randomly turn
elseif random(1, 100) <= 30 then
yaw = yaw + random(-0.5, 0.5)
yaw = set_yaw(self, yaw, 8)
end
-- stand for great fall or danger or fence in front
local cliff_or_danger = false
if is_in_danger then
cliff_or_danger = is_at_cliff_or_danger(self)
end
if self.facing_fence == true
or cliff_or_danger
or random(1, 100) <= 30 then
set_velocity(self, 0)
self.state = "stand"
set_animation(self, "stand")
local yaw = self.object:get_yaw() or 0
yaw = set_yaw(self, yaw + 0.78, 8)
else
set_velocity(self, self.walk_velocity)
if flight_check(self)
and self.animation
and self.animation.fly_start
and self.animation.fly_end then
set_animation(self, "fly")
else
set_animation(self, "walk")
end
end
-- runaway when punched
elseif self.state == "runaway" then
self.runaway_timer = self.runaway_timer + 1
-- stop after 5 seconds or when at cliff
if self.runaway_timer > 5
or is_at_cliff_or_danger(self) then
self.runaway_timer = 0
set_velocity(self, 0)
self.state = "stand"
set_animation(self, "stand")
local yaw = self.object:get_yaw() or 0
yaw = set_yaw(self, yaw + 0.78, 8)
else
set_velocity(self, self.run_velocity)
set_animation(self, "run")
end
-- attack routines (explode, dogfight, shoot, dogshoot)
elseif self.state == "attack" then
local s = self.object:get_pos()
local p = self.attack:get_pos() or s
-- stop attacking if player invisible or out of range
if not self.attack
or not self.attack:get_pos()
or not object_in_range(self, self.attack)
or self.attack:get_hp() <= 0
or (self.attack:is_player() and mcl_mobs.invis[ self.attack:get_player_name() ]) then
self.state = "stand"
set_velocity(self, 0)
set_animation(self, "stand")
self.attack = nil
self.v_start = false
self.timer = 0
self.blinktimer = 0
self.path.way = nil
return
end
-- calculate distance from mob and enemy
local dist = vector.distance(p, s)
if self.attack_type == "explode" then
local vec = {
x = p.x - s.x,
z = p.z - s.z
}
yaw = (atan(vec.z / vec.x) + pi / 2) - self.rotate
if p.x > s.x then yaw = yaw + pi end
yaw = set_yaw(self, yaw, 0, dtime)
local node_break_radius = self.explosion_radius or 1
local entity_damage_radius = self.explosion_damage_radius
or (node_break_radius * 2)
-- start timer when in reach and line of sight
if not self.v_start
and dist <= self.reach
and line_of_sight(self, s, p, 2) then
self.v_start = true
self.timer = 0
self.blinktimer = 0
mob_sound(self, "fuse", nil, false)
-- stop timer if out of reach or direct line of sight
elseif self.allow_fuse_reset
and self.v_start
and (dist >= self.explosiontimer_reset_radius
or not line_of_sight(self, s, p, 2)) then
self.v_start = false
self.timer = 0
self.blinktimer = 0
self.blinkstatus = false
remove_texture_mod(self, "^[brighten")
end
-- walk right up to player unless the timer is active
if self.v_start and (self.stop_to_explode or dist < self.reach) then
set_velocity(self, 0)
else
set_velocity(self, self.run_velocity)
end
if self.animation and self.animation.run_start then
set_animation(self, "run")
else
set_animation(self, "walk")
end
if self.v_start then
self.timer = self.timer + dtime
self.blinktimer = (self.blinktimer or 0) + dtime
if self.blinktimer > 0.2 then
self.blinktimer = 0
if self.blinkstatus then
remove_texture_mod(self, "^[brighten")
else
add_texture_mod(self, "^[brighten")
end
self.blinkstatus = not self.blinkstatus
end
if self.timer > self.explosion_timer then
local pos = self.object:get_pos()
if mobs_griefing and not minetest.is_protected(pos, "") then
mcl_explosions.explode(mcl_util.get_object_center(self.object), self.explosion_strength, { drop_chance = 1.0 }, self.object)
else
minetest.sound_play(self.sounds.explode, {
pos = pos,
gain = 1.0,
max_hear_distance = self.sounds.distance or 32
}, true)
entity_physics(pos, entity_damage_radius)
effect(pos, 32, "mcl_particles_smoke.png", nil, nil, node_break_radius, 1, 0)
end
mcl_burning.extinguish(self.object)
self.object:remove()
return true
end
end
elseif self.attack_type == "dogfight"
or (self.attack_type == "dogshoot" and dogswitch(self, dtime) == 2)
or (self.attack_type == "dogshoot" and dist <= self.reach and dogswitch(self) == 0) then
if self.fly
and dist > self.reach then
local p1 = s
local me_y = floor(p1.y)
local p2 = p
local p_y = floor(p2.y + 1)
local v = self.object:get_velocity()
if flight_check(self, s) then
if me_y < p_y then
self.object:set_velocity({
x = v.x,
y = 1 * self.walk_velocity,
z = v.z
})
elseif me_y > p_y then
self.object:set_velocity({
x = v.x,
y = -1 * self.walk_velocity,
z = v.z
})
end
else
if me_y < p_y then
self.object:set_velocity({
x = v.x,
y = 0.01,
z = v.z
})
elseif me_y > p_y then
self.object:set_velocity({
x = v.x,
y = -0.01,
z = v.z
})
end
end
end
-- rnd: new movement direction
if self.path.following
and self.path.way
and self.attack_type ~= "dogshoot" then
-- no paths longer than 50
if #self.path.way > 50
or dist < self.reach then
self.path.following = false
return
end
local p1 = self.path.way[1]
if not p1 then
self.path.following = false
return
end
if abs(p1.x-s.x) + abs(p1.z - s.z) < 0.6 then
-- reached waypoint, remove it from queue
table.remove(self.path.way, 1)
end
-- set new temporary target
p = {x = p1.x, y = p1.y, z = p1.z}
end
local vec = {
x = p.x - s.x,
z = p.z - s.z
}
yaw = (atan(vec.z / vec.x) + pi / 2) - self.rotate
if p.x > s.x then yaw = yaw + pi end
yaw = set_yaw(self, yaw, 0, dtime)
-- move towards enemy if beyond mob reach
if dist > self.reach then
-- path finding by rnd
if self.pathfinding -- only if mob has pathfinding enabled
and enable_pathfinding then
smart_mobs(self, s, p, dist, dtime)
end
if is_at_cliff_or_danger(self) then
set_velocity(self, 0)
set_animation(self, "stand")
local yaw = self.object:get_yaw() or 0
yaw = set_yaw(self, yaw + 0.78, 8)
else
if self.path.stuck then
set_velocity(self, self.walk_velocity)
else
set_velocity(self, self.run_velocity)
end
if self.animation and self.animation.run_start then
set_animation(self, "run")
else
set_animation(self, "walk")
end
end
else -- rnd: if inside reach range
self.path.stuck = false
self.path.stuck_timer = 0
self.path.following = false -- not stuck anymore
set_velocity(self, 0)
if not self.custom_attack then
if self.timer > 1 then
self.timer = 0
if self.double_melee_attack
and random(1, 2) == 1 then
set_animation(self, "punch2")
else
set_animation(self, "punch")
end
local p2 = p
local s2 = s
p2.y = p2.y + .5
s2.y = s2.y + .5
if line_of_sight(self, p2, s2) == true then
-- play attack sound
mob_sound(self, "attack")
-- punch player (or what player is attached to)
local attached = self.attack:get_attach()
if attached then
self.attack = attached
end
self.attack:punch(self.object, 1.0, {
full_punch_interval = 1.0,
damage_groups = {fleshy = self.damage}
}, nil)
end
end
else -- call custom attack every second
if self.custom_attack
and self.timer > 1 then
self.timer = 0
self.custom_attack(self, p)
end
end
end
elseif self.attack_type == "shoot"
or (self.attack_type == "dogshoot" and dogswitch(self, dtime) == 1)
or (self.attack_type == "dogshoot" and dist > self.reach and dogswitch(self) == 0) then
p.y = p.y - .5
s.y = s.y + .5
local dist = vector.distance(p, s)
local vec = {
x = p.x - s.x,
y = p.y - s.y,
z = p.z - s.z
}
yaw = (atan(vec.z / vec.x) + pi / 2) - self.rotate
if p.x > s.x then yaw = yaw + pi end
yaw = set_yaw(self, yaw, 0, dtime)
set_velocity(self, 0)
local p = self.object:get_pos()
p.y = p.y + (self.collisionbox[2] + self.collisionbox[5]) / 2
if self.shoot_interval
and self.timer > self.shoot_interval
and not minetest.raycast(p, self.attack:get_pos(), false, false):next()
and random(1, 100) <= 60 then
self.timer = 0
set_animation(self, "shoot")
-- play shoot attack sound
mob_sound(self, "shoot_attack")
-- Shoot arrow
if minetest.registered_entities[self.arrow] then
local arrow, ent
local v = 1
if not self.shoot_arrow then
self.firing = true
minetest.after(1, function()
self.firing = false
end)
arrow = minetest.add_entity(p, self.arrow)
ent = arrow:get_luaentity()
if ent.velocity then
v = ent.velocity
end
ent.switch = 1
ent.owner_id = tostring(self.object) -- add unique owner id to arrow
-- important for mcl_shields
ent._shooter = self.object
ent._saved_shooter_pos = self.object:get_pos()
end
local amount = (vec.x * vec.x + vec.y * vec.y + vec.z * vec.z) ^ 0.5
-- offset makes shoot aim accurate
vec.y = vec.y + self.shoot_offset
vec.x = vec.x * (v / amount)
vec.y = vec.y * (v / amount)
vec.z = vec.z * (v / amount)
if self.shoot_arrow then
vec = vector.normalize(vec)
self:shoot_arrow(p, vec)
else
arrow:set_velocity(vec)
end
end
end
end
end
end
local plane_adjacents = {
vector.new(1,0,0),
vector.new(-1,0,0),
vector.new(0,0,1),
vector.new(0,0,-1),
}
local gopath_last = os.time()
function mcl_mobs:gopath(self,target,callback_arrived)
if os.time() - gopath_last < 15 then return end
gopath_last = os.time()
--minetest.log("gowp")
local p = self.object:get_pos()
local t = vector.offset(target,0,1,0)
local wp = minetest.find_path(p,t,150,1,4)
if not wp then
local d = minetest.find_node_near(target,16,{"group:door"})
if d then
for _,v in pairs(plane_adjacents) do
local pos = vector.add(d,v)
local n = minetest.get_node(pos)
if n.name == "air" then
wp = minetest.find_path(p,pos,150,1,4)
if wp then break end
end
end
end
end
if wp and #wp > 0 then
self._target = t
self.callback_arrived = callback_arrived
table.remove(wp,1)
self.waypoints = wp
self.state = "gowp"
return true
else
self.state = "walk"
self.waypoints = nil
self.current_target = nil
-- minetest.log("no path found")
end
end
local function player_near(pos)
for _,o in pairs(minetest.get_objects_inside_radius(pos,2)) do
if o:is_player() then return true end
end
end
local function check_item_pickup(self)
if self.pick_up and #self.pick_up > 0 then
local p = self.object:get_pos()
for _,o in pairs(minetest.get_objects_inside_radius(p,2)) do
local l=o:get_luaentity()
if l and l.name == "__builtin:item" then
for k,v in pairs(self.pick_up) do
if not player_near(p) and self.on_pick_up and l.itemstring:find(v) then
if self.on_pick_up(self,l) == nil then o:remove() end
end
end
end
end
end
end
local function damage_mob(self,reason,damage)
if not self.health then return end
damage = floor(damage)
if damage > 0 then
self.health = self.health - damage
effect(self.object:get_pos(), 5, "mcl_particles_smoke.png", 1, 2, 2, nil)
if check_for_death(self, reason, {type = reason}) then
return true
end
end
end
local function check_entity_cramming(self)
local p = self.object:get_pos()
if not p then return end
local oo = minetest.get_objects_inside_radius(p,1)
local mobs = {}
for _,o in pairs(oo) do
local l = o:get_luaentity()
if l and l.is_mob and l.health > 0 then table.insert(mobs,l) end
end
local clear = #mobs < ENTITY_CRAMMING_MAX
local ncram = {}
for _,l in pairs(mobs) do
if l then
if clear then
l.cram = nil
elseif l.cram == nil and not self.child then
table.insert(ncram,l)
elseif l.cram then
damage_mob(l,"cramming",CRAMMING_DAMAGE)
end
end
end
for i,l in pairs(ncram) do
if i > ENTITY_CRAMMING_MAX then
l.cram = true
else
l.cram = nil
end
end
end
-- falling and fall damage
-- returns true if mob died
local falling = function(self, pos)
if self.fly and self.state ~= "die" then
return
end
if mcl_portals ~= nil then
if mcl_portals.nether_portal_cooloff(self.object) then
return false -- mob has teleported through Nether portal - it's 99% not falling
end
end
-- floating in water (or falling)
local v = self.object:get_velocity()
if v.y > 0 then
-- apply gravity when moving up
self.object:set_acceleration({
x = 0,
y = -10,
z = 0
})
elseif v.y <= 0 and v.y > self.fall_speed then
-- fall downwards at set speed
self.object:set_acceleration({
x = 0,
y = self.fall_speed,
z = 0
})
else
-- stop accelerating once max fall speed hit
self.object:set_acceleration({x = 0, y = 0, z = 0})
end
if minetest.registered_nodes[node_ok(pos).name].groups.lava then
if self.floats_on_lava == 1 then
self.object:set_acceleration({
x = 0,
y = -self.fall_speed / (max(1, v.y) ^ 2),
z = 0
})
end
end
-- in water then float up
if minetest.registered_nodes[node_ok(pos).name].groups.water then
if self.floats == 1 then
self.object:set_acceleration({
x = 0,
y = -self.fall_speed / (max(1, v.y) ^ 2),
z = 0
})
end
else
-- fall damage onto solid ground
if self.fall_damage == 1
and self.object:get_velocity().y == 0 then
local d = (self.old_y or 0) - self.object:get_pos().y
if d > 5 then
local add = minetest.get_item_group(self.standing_on, "fall_damage_add_percent")
local damage = d - 5
if add ~= 0 then
damage = damage + damage * (add/100)
end
damage_mob(self,"fall",damage)
end
self.old_y = self.object:get_pos().y
end
end
end
local teleport = function(self, target)
if self.do_teleport then
if self.do_teleport(self, target) == false then
return
end
end
end
-- deal damage and effects when mob punched
local mob_punch = function(self, hitter, tflp, tool_capabilities, dir)
-- custom punch function
if self.do_punch then
-- when false skip going any further
if self.do_punch(self, hitter, tflp, tool_capabilities, dir) == false then
return
end
end
-- error checking when mod profiling is enabled
if not tool_capabilities then
minetest.log("warning", "[mobs] Mod profiling enabled, damage not enabled")
return
end
local is_player = hitter:is_player()
if is_player then
-- is mob protected?
if self.protected and minetest.is_protected(self.object:get_pos(), hitter:get_player_name()) then
return
end
if minetest.is_creative_enabled(hitter:get_player_name()) then
self.health = 0
end
-- set/update 'drop xp' timestamp if hitted by player
self.xp_timestamp = minetest.get_us_time()
end
-- punch interval
local weapon = hitter:get_wielded_item()
local punch_interval = 1.4
-- exhaust attacker
if is_player then
mcl_hunger.exhaust(hitter:get_player_name(), mcl_hunger.EXHAUST_ATTACK)
end
-- calculate mob damage
local damage = 0
local armor = self.object:get_armor_groups() or {}
local tmp
-- quick error check incase it ends up 0 (serialize.h check test)
if tflp == 0 then
tflp = 0.2
end
for group,_ in pairs( (tool_capabilities.damage_groups or {}) ) do
tmp = tflp / (tool_capabilities.full_punch_interval or 1.4)
if tmp < 0 then
tmp = 0.0
elseif tmp > 1 then
tmp = 1.0
end
damage = damage + (tool_capabilities.damage_groups[group] or 0)
* tmp * ((armor[group] or 0) / 100.0)
end
if weapon then
local fire_aspect_level = mcl_enchanting.get_enchantment(weapon, "fire_aspect")
if fire_aspect_level > 0 then
mcl_burning.set_on_fire(self.object, fire_aspect_level * 4)
end
end
-- check for tool immunity or special damage
for n = 1, #self.immune_to do
if self.immune_to[n][1] == weapon:get_name() then
damage = self.immune_to[n][2] or 0
break
end
end
-- healing
if damage <= -1 then
self.health = self.health - floor(damage)
return
end
if tool_capabilities then
punch_interval = tool_capabilities.full_punch_interval or 1.4
end
-- add weapon wear manually
-- Required because we have custom health handling ("health" property)
if minetest.is_creative_enabled("") ~= true
and tool_capabilities then
if tool_capabilities.punch_attack_uses then
-- Without this delay, the wear does not work. Quite hacky ...
minetest.after(0, function(name)
local player = minetest.get_player_by_name(name)
if not player then return end
local weapon = hitter:get_wielded_item(player)
local def = weapon:get_definition()
if def.tool_capabilities and def.tool_capabilities.punch_attack_uses then
local wear = floor(65535/tool_capabilities.punch_attack_uses)
weapon:add_wear(wear)
hitter:set_wielded_item(weapon)
end
end, hitter:get_player_name())
end
end
local die = false
if damage >= 0 then
-- only play hit sound and show blood effects if damage is 1 or over; lower to 0.1 to ensure armor works appropriately.
if damage >= 0.1 then
-- weapon sounds
if weapon:get_definition().sounds ~= nil then
local s = random(0, #weapon:get_definition().sounds)
minetest.sound_play(weapon:get_definition().sounds[s], {
object = self.object, --hitter,
max_hear_distance = 8
}, true)
else
minetest.sound_play("default_punch", {
object = self.object,
max_hear_distance = 5
}, true)
end
damage_effect(self, damage)
-- do damage
self.health = self.health - damage
-- skip future functions if dead, except alerting others
if check_for_death(self, "hit", {type = "punch", puncher = hitter}) then
die = true
end
end
-- knock back effect (only on full punch)
if not die
and self.knock_back
and tflp >= punch_interval then
local v = self.object:get_velocity()
local r = 1.4 - min(punch_interval, 1.4)
local kb = r * 2.0
local up = 2
-- if already in air then dont go up anymore when hit
if v.y ~= 0
or self.fly then
up = 0
end
-- direction error check
dir = dir or {x = 0, y = 0, z = 0}
-- check if tool already has specific knockback value
if tool_capabilities.damage_groups["knockback"] then
kb = tool_capabilities.damage_groups["knockback"]
else
kb = kb * 1.5
end
local luaentity
if hitter then
luaentity = hitter:get_luaentity()
end
if hitter and is_player then
local wielditem = hitter:get_wielded_item()
kb = kb + 3 * mcl_enchanting.get_enchantment(wielditem, "knockback")
elseif luaentity and luaentity._knockback then
kb = kb + luaentity._knockback
end
self.object:set_velocity({
x = dir.x * kb,
y = dir.y * kb + up * 2,
z = dir.z * kb
})
self.pause_timer = 0.25
end
end -- END if damage
-- if skittish then run away
if not die and self.runaway == true and self.state ~= "flop" then
local lp = hitter:get_pos()
local s = self.object:get_pos()
local vec = {
x = lp.x - s.x,
y = lp.y - s.y,
z = lp.z - s.z
}
local yaw = (atan(vec.z / vec.x) + 3 * pi / 2) - self.rotate
if lp.x > s.x then
yaw = yaw + pi
end
yaw = set_yaw(self, yaw, 6)
self.state = "runaway"
self.runaway_timer = 0
self.following = nil
end
local name = hitter:get_player_name() or ""
-- attack puncher and call other mobs for help
if self.passive == false
and self.state ~= "flop"
and (self.child == false or self.type == "monster")
and hitter:get_player_name() ~= self.owner
and not mcl_mobs.invis[ name ] then
if not die then
-- attack whoever punched mob
self.state = ""
do_attack(self, hitter)
self._aggro= true
end
-- alert others to the attack
local objs = minetest.get_objects_inside_radius(hitter:get_pos(), self.view_range)
local obj = nil
for n = 1, #objs do
obj = objs[n]:get_luaentity()
if obj then
-- only alert members of same mob or friends
if obj.group_attack
and obj.state ~= "attack"
and obj.owner ~= name then
if obj.name == self.name then
do_attack(obj, hitter)
elseif type(obj.group_attack) == "table" then
for i=1, #obj.group_attack do
if obj.name == obj.group_attack[i] then
obj._aggro = true
do_attack(obj, hitter)
break
end
end
end
end
-- have owned mobs attack player threat
if obj.owner == name and obj.owner_loyal then
do_attack(obj, self.object)
end
end
end
end
end
local mob_detach_child = function(self, child)
if self.driver == child then
self.driver = nil
end
end
-- get entity staticdata
local mob_staticdata = function(self)
-- remove mob when out of range unless tamed
if remove_far
and self.can_despawn
and self.remove_ok
and ((not self.nametag) or (self.nametag == ""))
and self.lifetimer <= 20 then
if spawn_logging then
minetest.log("action", "[mcl_mobs] Mob "..tostring(self.name).." despawns in mob_staticdata at "..minetest.pos_to_string(self.object:get_pos()))
end
mcl_burning.extinguish(self.object)
self.object:remove()
return "remove"-- nil
end
self.remove_ok = true
self.attack = nil
self.following = nil
self.state = "stand"
local tmp = {}
for _,stat in pairs(self) do
local t = type(stat)
if t ~= "function"
and t ~= "nil"
and t ~= "userdata"
and _ ~= "_cmi_components" then
tmp[_] = self[_]
end
end
return minetest.serialize(tmp)
end
-- activate mob and reload settings
local mob_activate = function(self, staticdata, def, dtime)
-- remove monsters in peaceful mode
if self.type == "monster"
and minetest.settings:get_bool("only_peaceful_mobs", false) then
mcl_burning.extinguish(self.object)
self.object:remove()
return
end
if staticdata == "remove" then
mcl_burning.extinguish(self.object)
self.object:remove()
return
end
-- load entity variables
local tmp = minetest.deserialize(staticdata)
if tmp then
for _,stat in pairs(tmp) do
self[_] = stat
end
end
-- select random texture, set model and size
if not self.base_texture then
-- compatiblity with old simple mobs textures
if type(def.textures[1]) == "string" then
def.textures = {def.textures}
end
local c = 1
if #def.textures > c then c = #def.textures end
self.base_texture = def.textures[random(c)]
self.base_mesh = def.mesh
self.base_size = self.visual_size
self.base_colbox = self.collisionbox
self.base_selbox = self.selectionbox
end
-- for current mobs that dont have this set
if not self.base_selbox then
self.base_selbox = self.selectionbox or self.base_colbox
end
-- set texture, model and size
local textures = self.base_texture
local mesh = self.base_mesh
local vis_size = self.base_size
local colbox = self.base_colbox
local selbox = self.base_selbox
-- specific texture if gotten
if self.gotten == true
and def.gotten_texture then
textures = def.gotten_texture
end
-- specific mesh if gotten
if self.gotten == true
and def.gotten_mesh then
mesh = def.gotten_mesh
end
-- set child objects to half size
if self.child == true then
vis_size = {
x = self.base_size.x * .5,
y = self.base_size.y * .5,
}
if def.child_texture then
textures = def.child_texture[1]
end
colbox = {
self.base_colbox[1] * .5,
self.base_colbox[2] * .5,
self.base_colbox[3] * .5,
self.base_colbox[4] * .5,
self.base_colbox[5] * .5,
self.base_colbox[6] * .5
}
selbox = {
self.base_selbox[1] * .5,
self.base_selbox[2] * .5,
self.base_selbox[3] * .5,
self.base_selbox[4] * .5,
self.base_selbox[5] * .5,
self.base_selbox[6] * .5
}
end
if self.health == 0 then
self.health = random (self.hp_min, self.hp_max)
end
if self.breath == nil then
self.breath = self.breath_max
end
-- pathfinding init
self.path = {}
self.path.way = {} -- path to follow, table of positions
self.path.lastpos = {x = 0, y = 0, z = 0}
self.path.stuck = false
self.path.following = false -- currently following path?
self.path.stuck_timer = 0 -- if stuck for too long search for path
-- Armor groups
-- immortal=1 because we use custom health
-- handling (using "health" property)
local armor
if type(self.armor) == "table" then
armor = table.copy(self.armor)
armor.immortal = 1
else
armor = {immortal=1, fleshy = self.armor}
end
self.object:set_armor_groups(armor)
self.old_y = self.object:get_pos().y
self.old_health = self.health
self.sounds.distance = self.sounds.distance or 10
self.textures = textures
self.mesh = mesh
self.collisionbox = colbox
self.selectionbox = selbox
self.visual_size = vis_size
self.standing_in = "ignore"
self.standing_on = "ignore"
self.jump_sound_cooloff = 0 -- used to prevent jump sound from being played too often in short time
self.opinion_sound_cooloff = 0 -- used to prevent sound spam of particular sound types
self.texture_mods = {}
self.object:set_texture_mod("")
self.v_start = false
self.timer = 0
self.blinktimer = 0
self.blinkstatus = false
-- check existing nametag
if not self.nametag then
self.nametag = def.nametag
end
if not self.custom_visual_size and not self.child then
-- Remove saved visual_size on old existing entites.
-- Old entities were 3 now it's 1.
self.visual_size = nil
self.object:set_properties({visual_size = self.visual_size})
self.base_size = self.visual_size
end
-- set anything changed above
self.object:set_properties(self)
set_yaw(self, (random(0, 360) - 180) / 180 * pi, 6)
update_tag(self)
set_animation(self, "stand")
-- run on_spawn function if found
if self.on_spawn and not self.on_spawn_run then
if self.on_spawn(self) then
self.on_spawn_run = true -- if true, set flag to run once only
end
end
-- run after_activate
if def.after_activate then
def.after_activate(self, staticdata, def, dtime)
end
end
local function check_aggro(self,dtime)
if not self._aggro or not self.attack then return end
if not self._check_aggro_timer or self._check_aggro_timer > 5 then
self._check_aggro_timer = 0
if not self.attack:get_pos() or vector.distance(self.attack:get_pos(),self.object:get_pos()) > 128 then
self._aggro = nil
self.attack = nil
self.state = "stand"
end
end
self._check_aggro_timer = self._check_aggro_timer + dtime
end
-- main mob function
local mob_step = function(self, dtime)
self.lifetimer = self.lifetimer - dtime
check_item_pickup(self)
check_aggro(self,dtime)
if not self.fire_resistant then
mcl_burning.tick(self.object, dtime, self)
-- mcl_burning.tick may remove object immediately
if not self.object:get_pos() then return end
end
local pos = self.object:get_pos()
local yaw = 0
if mobs_debug then
update_tag(self)
end
if self.state == "die" then
return
end
if self.jump_sound_cooloff > 0 then
self.jump_sound_cooloff = self.jump_sound_cooloff - dtime
end
if self.opinion_sound_cooloff > 0 then
self.opinion_sound_cooloff = self.opinion_sound_cooloff - dtime
end
if falling(self, pos) then
-- Return if mob died after falling
return
end
-- smooth rotation by ThomasMonroe314
if self.delay and self.delay > 0 then
local yaw = self.object:get_yaw() or 0
if self.delay == 1 then
yaw = self.target_yaw
else
local dif = abs(yaw - self.target_yaw)
if yaw > self.target_yaw then
if dif > pi then
dif = 2 * pi - dif -- need to add
yaw = yaw + dif / self.delay
else
yaw = yaw - dif / self.delay -- need to subtract
end
elseif yaw < self.target_yaw then
if dif > pi then
dif = 2 * pi - dif
yaw = yaw - dif / self.delay -- need to subtract
else
yaw = yaw + dif / self.delay -- need to add
end
end
if yaw > (pi * 2) then yaw = yaw - (pi * 2) end
if yaw < 0 then yaw = yaw + (pi * 2) end
end
self.delay = self.delay - 1
if self.shaking then
yaw = yaw + (random() * 2 - 1) * 5 * dtime
end
self.object:set_yaw(yaw)
update_roll(self)
end
-- end rotation
-- run custom function (defined in mob lua file)
if self.do_custom then
-- when false skip going any further
if self.do_custom(self, dtime) == false then
return
end
end
-- knockback timer
if self.pause_timer > 0 then
self.pause_timer = self.pause_timer - dtime
return
end
-- attack timer
self.timer = self.timer + dtime
if self.state ~= "attack" and self.state ~= "gowp" then
if self.timer < 1 then
return
end
self.timer = 0
end
-- never go over 100
if self.timer > 100 then
self.timer = 1
end
-- mob plays random sound at times
if random(1, 70) == 1 then
mob_sound(self, "random", true)
end
-- environmental damage timer (every 1 second)
self.env_damage_timer = self.env_damage_timer + dtime
if (self.state == "attack" and self.env_damage_timer > 1)
or self.state ~= "attack" then
check_entity_cramming(self)
self.env_damage_timer = 0
-- check for environmental damage (water, fire, lava etc.)
if do_env_damage(self) then
return
end
-- node replace check (cow eats grass etc.)
replace(self, pos)
end
monster_attack(self)
npc_attack(self)
breed(self)
if do_states(self, dtime) then
return
end
if not self.object:get_luaentity() then
return false
end
do_jump(self)
runaway_from(self)
if is_at_water_danger(self) and self.state ~= "attack" then
if random(1, 10) <= 6 then
set_velocity(self, 0)
self.state = "stand"
set_animation(self, "stand")
yaw = yaw + random(-0.5, 0.5)
yaw = set_yaw(self, yaw, 8)
end
end
-- Add water flowing for mobs from mcl_item_entity
local p, node, nn, def
p = self.object:get_pos()
node = minetest.get_node_or_nil(p)
if node then
nn = node.name
def = minetest.registered_nodes[nn]
end
-- Move item around on flowing liquids
if def and def.liquidtype == "flowing" then
--[[ Get flowing direction (function call from flowlib), if there's a liquid.
NOTE: According to Qwertymine, flowlib.quickflow is only reliable for liquids with a flowing distance of 7.
Luckily, this is exactly what we need if we only care about water, which has this flowing distance. ]]
local vec = flowlib.quick_flow(p, node)
-- Just to make sure we don't manipulate the speed for no reason
if vec.x ~= 0 or vec.y ~= 0 or vec.z ~= 0 then
-- Minecraft Wiki: Flowing speed is "about 1.39 meters per second"
local f = 1.39
-- Set new item moving speed into the direciton of the liquid
local newv = vector.multiply(vec, f)
self.object:set_acceleration({x = 0, y = 0, z = 0})
self.object:set_velocity({x = newv.x, y = -0.22, z = newv.z})
self.physical_state = true
self._flowing = true
self.object:set_properties({
physical = true
})
return
end
elseif self._flowing == true then
-- Disable flowing physics if not on/in flowing liquid
self._flowing = false
enable_physics(self.object, self, true)
return
end
--Mob following code.
follow_flop(self)
if is_at_cliff_or_danger(self) then
set_velocity(self, 0)
self.state = "stand"
set_animation(self, "stand")
local yaw = self.object:get_yaw() or 0
yaw = set_yaw(self, yaw + 0.78, 8)
end
-- Despawning: when lifetimer expires, remove mob
if remove_far
and self.can_despawn == true
and ((not self.nametag) or (self.nametag == ""))
and self.state ~= "attack"
and self.following == nil then
if self.despawn_immediately or self.lifetimer <= 0 then
if spawn_logging then
minetest.log("action", "[mcl_mobs] Mob "..self.name.." despawns in mob_step at "..minetest.pos_to_string(pos, 1))
end
mcl_burning.extinguish(self.object)
self.object:remove()
return
elseif self.lifetimer <= 10 then
if random(10) < 4 then
self.despawn_immediately = true
else
self.lifetimer = 20
end
end
end
end
-- default function when mobs are blown up with TNT
local do_tnt = function(obj, damage)
obj.object:punch(obj.object, 1.0, {
full_punch_interval = 1.0,
damage_groups = {fleshy = damage},
}, nil)
return false, true, {}
end
mcl_mobs.spawning_mobs = {}
-- Code to execute before custom on_rightclick handling
local on_rightclick_prefix = function(self, clicker)
local item = clicker:get_wielded_item()
-- Name mob with nametag
if not self.ignores_nametag and item:get_name() == "mcl_mobs:nametag" then
local tag = item:get_meta():get_string("name")
if tag ~= "" then
if string.len(tag) > MAX_MOB_NAME_LENGTH then
tag = string.sub(tag, 1, MAX_MOB_NAME_LENGTH)
end
self.nametag = tag
update_tag(self)
if not minetest.is_creative_enabled(clicker:get_player_name()) then
item:take_item()
clicker:set_wielded_item(item)
end
return true
end
end
return false
end
local create_mob_on_rightclick = function(on_rightclick)
return function(self, clicker)
local stop = on_rightclick_prefix(self, clicker)
if (not stop) and (on_rightclick) then
on_rightclick(self, clicker)
end
end
end
-- register mob entity
function mcl_mobs:register_mob(name, def)
mcl_mobs.spawning_mobs[name] = true
local can_despawn
if def.can_despawn ~= nil then
can_despawn = def.can_despawn
elseif def.spawn_class == "passive" then
can_despawn = false
else
can_despawn = true
end
local function scale_difficulty(value, default, min, special)
if (not value) or (value == default) or (value == special) then
return default
else
return max(min, value * difficulty)
end
end
local collisionbox = def.collisionbox or {-0.25, -0.25, -0.25, 0.25, 0.25, 0.25}
-- Workaround for <https://github.com/minetest/minetest/issues/5966>:
-- Increase upper Y limit to avoid mobs glitching through solid nodes.
-- FIXME: Remove workaround if it's no longer needed.
if collisionbox[5] < 0.79 then
collisionbox[5] = 0.79
end
minetest.register_entity(name, {
use_texture_alpha = def.use_texture_alpha,
stepheight = def.stepheight or 0.6,
name = name,
description = def.description,
type = def.type,
attack_type = def.attack_type,
fly = def.fly,
fly_in = def.fly_in or {"air", "__airlike"},
owner = def.owner or "",
order = def.order or "",
on_die = def.on_die,
spawn_small_alternative = def.spawn_small_alternative,
do_custom = def.do_custom,
jump_height = def.jump_height or 4, -- was 6
rotate = math.rad(def.rotate or 0), -- 0=front, 90=side, 180=back, 270=side2
lifetimer = def.lifetimer or 57.73,
hp_min = scale_difficulty(def.hp_min, 5, 1),
hp_max = scale_difficulty(def.hp_max, 10, 1),
xp_min = def.xp_min or 0,
xp_max = def.xp_max or 0,
xp_timestamp = 0,
breath_max = def.breath_max or 15,
breathes_in_water = def.breathes_in_water or false,
physical = true,
collisionbox = collisionbox,
selectionbox = def.selectionbox or def.collisionbox,
visual = def.visual,
visual_size = def.visual_size or {x = 1, y = 1},
mesh = def.mesh,
makes_footstep_sound = def.makes_footstep_sound or false,
view_range = def.view_range or 16,
walk_velocity = def.walk_velocity or 1,
run_velocity = def.run_velocity or 2,
damage = scale_difficulty(def.damage, 0, 0),
light_damage = def.light_damage or 0,
sunlight_damage = def.sunlight_damage or 0,
water_damage = def.water_damage or 0,
lava_damage = def.lava_damage or 8,
fire_damage = def.fire_damage or 1,
suffocation = def.suffocation or true,
fall_damage = def.fall_damage or 1,
fall_speed = def.fall_speed or DEFAULT_FALL_SPEED, -- must be lower than -2
drops = def.drops or {},
armor = def.armor or 100,
on_rightclick = create_mob_on_rightclick(def.on_rightclick),
arrow = def.arrow,
shoot_interval = def.shoot_interval,
sounds = def.sounds or {},
animation = def.animation,
follow = def.follow,
nofollow = def.nofollow,
can_open_doors = def.can_open_doors,
jump = def.jump ~= false,
walk_chance = def.walk_chance or 50,
attacks_monsters = def.attacks_monsters or false,
group_attack = def.group_attack or false,
passive = def.passive or false,
knock_back = def.knock_back ~= false,
shoot_offset = def.shoot_offset or 0,
floats = def.floats or 1, -- floats in water by default
floats_on_lava = def.floats_on_lava or 0,
replace_rate = def.replace_rate,
replace_what = def.replace_what,
replace_with = def.replace_with,
replace_offset = def.replace_offset or 0,
on_replace = def.on_replace,
timer = 0,
env_damage_timer = 0,
tamed = false,
pause_timer = 0,
horny = false,
hornytimer = 0,
gotten = false,
health = 0,
reach = def.reach or 3,
htimer = 0,
texture_list = def.textures,
child_texture = def.child_texture,
docile_by_day = def.docile_by_day or false,
time_of_day = 0.5,
fear_height = def.fear_height or 0,
runaway = def.runaway,
runaway_timer = 0,
pathfinding = def.pathfinding,
immune_to = def.immune_to or {},
explosion_radius = def.explosion_radius, -- LEGACY
explosion_damage_radius = def.explosion_damage_radius, -- LEGACY
explosiontimer_reset_radius = def.explosiontimer_reset_radius,
explosion_timer = def.explosion_timer or 3,
allow_fuse_reset = def.allow_fuse_reset ~= false,
stop_to_explode = def.stop_to_explode ~= false,
custom_attack = def.custom_attack,
double_melee_attack = def.double_melee_attack,
dogshoot_switch = def.dogshoot_switch,
dogshoot_count = 0,
dogshoot_count_max = def.dogshoot_count_max or 5,
dogshoot_count2_max = def.dogshoot_count2_max or (def.dogshoot_count_max or 5),
attack_animals = def.attack_animals or false,
attack_npcs = def.attack_npcs or false,
specific_attack = def.specific_attack,
runaway_from = def.runaway_from,
owner_loyal = def.owner_loyal,
facing_fence = false,
is_mob = true,
pushable = def.pushable or true,
-- MCL2 extensions
teleport = teleport,
do_teleport = def.do_teleport,
spawn_class = def.spawn_class,
can_spawn = def.can_spawn,
ignores_nametag = def.ignores_nametag or false,
rain_damage = def.rain_damage or 0,
glow = def.glow,
can_despawn = can_despawn,
child = def.child or false,
texture_mods = {},
shoot_arrow = def.shoot_arrow,
sounds_child = def.sounds_child,
pick_up = def.pick_up,
explosion_strength = def.explosion_strength,
suffocation_timer = 0,
follow_velocity = def.follow_velocity or 2.4,
instant_death = def.instant_death or false,
fire_resistant = def.fire_resistant or false,
fire_damage_resistant = def.fire_damage_resistant or false,
ignited_by_sunlight = def.ignited_by_sunlight or false,
spawn_in_group = def.spawn_in_group,
spawn_in_group_min = def.spawn_in_group_min,
noyaw = def.noyaw or false,
-- End of MCL2 extensions
on_spawn = def.on_spawn,
on_blast = def.on_blast or do_tnt,
on_step = mob_step,
do_punch = def.do_punch,
on_punch = mob_punch,
on_breed = def.on_breed,
on_grown = def.on_grown,
on_pick_up = def.on_pick_up,
on_detach_child = mob_detach_child,
on_activate = function(self, staticdata, dtime)
--this is a temporary hack so mobs stop
--glitching and acting really weird with the
--default built in engine collision detection
self.is_mob = true
self.object:set_properties({
collide_with_objects = false,
})
return mob_activate(self, staticdata, def, dtime)
end,
get_staticdata = function(self)
return mob_staticdata(self)
end,
harmed_by_heal = def.harmed_by_heal,
})
if minetest.get_modpath("doc_identifier") ~= nil then
doc.sub.identifier.register_object(name, "basics", "mobs")
end
end -- END mcl_mobs:register_mob function
-- register arrow for shoot attack
function mcl_mobs:register_arrow(name, def)
if not name or not def then return end -- errorcheck
minetest.register_entity(name, {
physical = false,
visual = def.visual,
visual_size = def.visual_size,
textures = def.textures,
velocity = def.velocity,
hit_player = def.hit_player,
hit_node = def.hit_node,
hit_mob = def.hit_mob,
hit_object = def.hit_object,
drop = def.drop or false, -- drops arrow as registered item when true
collisionbox = {0, 0, 0, 0, 0, 0}, -- remove box around arrows
timer = 0,
switch = 0,
owner_id = def.owner_id,
rotate = def.rotate,
on_punch = function(self)
local vel = self.object:get_velocity()
self.object:set_velocity({x=vel.x * -1, y=vel.y * -1, z=vel.z * -1})
end,
collisionbox = def.collisionbox or {0, 0, 0, 0, 0, 0},
automatic_face_movement_dir = def.rotate
and (def.rotate - (pi / 180)) or false,
on_activate = def.on_activate,
on_step = def.on_step or function(self, dtime)
self.timer = self.timer + 1
local pos = self.object:get_pos()
if self.switch == 0
or self.timer > 150
or not within_limits(pos, 0) then
mcl_burning.extinguish(self.object)
self.object:remove();
return
end
-- does arrow have a tail (fireball)
if def.tail
and def.tail == 1
and def.tail_texture then
minetest.add_particle({
pos = pos,
velocity = {x = 0, y = 0, z = 0},
acceleration = {x = 0, y = 0, z = 0},
expirationtime = def.expire or 0.25,
collisiondetection = false,
texture = def.tail_texture,
size = def.tail_size or 5,
glow = def.glow or 0,
})
end
if self.hit_node then
local node = node_ok(pos).name
if minetest.registered_nodes[node].walkable then
self.hit_node(self, pos, node)
if self.drop == true then
pos.y = pos.y + 1
self.lastpos = (self.lastpos or pos)
minetest.add_item(self.lastpos, self.object:get_luaentity().name)
end
self.object:remove();
return
end
end
if self.hit_player or self.hit_mob or self.hit_object then
for _,player in pairs(minetest.get_objects_inside_radius(pos, 1.5)) do
if self.hit_player
and player:is_player() then
self.hit_player(self, player)
self.object:remove();
return
end
local entity = player:get_luaentity()
if entity
and self.hit_mob
and entity.is_mob == true
and tostring(player) ~= self.owner_id
and entity.name ~= self.object:get_luaentity().name then
self.hit_mob(self, player)
self.object:remove();
return
end
if entity
and self.hit_object
and (not entity.is_mob)
and tostring(player) ~= self.owner_id
and entity.name ~= self.object:get_luaentity().name then
self.hit_object(self, player)
self.object:remove();
return
end
end
end
self.lastpos = pos
end
})
end
-- no damage to nodes explosion
function mcl_mobs:safe_boom(self, pos, strength)
minetest.sound_play(self.sounds and self.sounds.explode or "tnt_explode", {
pos = pos,
gain = 1.0,
max_hear_distance = self.sounds and self.sounds.distance or 32
}, true)
local radius = strength
entity_physics(pos, radius)
effect(pos, 32, "mcl_particles_smoke.png", radius * 3, radius * 5, radius, 1, 0)
end
-- make explosion with protection and tnt mod check
function mcl_mobs:boom(self, pos, strength, fire)
if mobs_griefing and not minetest.is_protected(pos, "") then
mcl_explosions.explode(pos, strength, { drop_chance = 1.0, fire = fire }, self.object)
else
mcl_mobs:safe_boom(self, pos, strength)
end
-- delete the object after it punched the player to avoid nil entities in e.g. mcl_shields!!
self.object:remove()
end
-- Register spawn eggs
-- Note: This also introduces the “spawn_egg” group:
-- * spawn_egg=1: Spawn egg (generic mob, no metadata)
-- * spawn_egg=2: Spawn egg (captured/tamed mob, metadata)
function mcl_mobs:register_egg(mob, desc, background, addegg, no_creative)
local grp = {spawn_egg = 1}
-- do NOT add this egg to creative inventory (e.g. dungeon master)
if no_creative == true then
grp.not_in_creative_inventory = 1
end
local invimg = background
if addegg == 1 then
invimg = "mobs_chicken_egg.png^(" .. invimg ..
"^[mask:mobs_chicken_egg_overlay.png)"
end
-- register old stackable mob egg
minetest.register_craftitem(mob, {
description = desc,
inventory_image = invimg,
groups = grp,
_doc_items_longdesc = S("This allows you to place a single mob."),
_doc_items_usagehelp = S("Just place it where you want the mob to appear. Animals will spawn tamed, unless you hold down the sneak key while placing. If you place this on a mob spawner, you change the mob it spawns."),
on_place = function(itemstack, placer, pointed_thing)
local pos = pointed_thing.above
-- am I clicking on something with existing on_rightclick function?
local under = minetest.get_node(pointed_thing.under)
local def = minetest.registered_nodes[under.name]
if def and def.on_rightclick then
return def.on_rightclick(pointed_thing.under, under, placer, itemstack)
end
if pos
and within_limits(pos, 0)
and not minetest.is_protected(pos, placer:get_player_name()) then
local name = placer:get_player_name()
local privs = minetest.get_player_privs(name)
if under.name == "mcl_mobspawners:spawner" then
if minetest.is_protected(pointed_thing.under, name) then
minetest.record_protection_violation(pointed_thing.under, name)
return itemstack
end
if not privs.maphack then
minetest.chat_send_player(name, S("You need the “maphack” privilege to change the mob spawner."))
return itemstack
end
mcl_mobspawners.setup_spawner(pointed_thing.under, itemstack:get_name())
if not minetest.is_creative_enabled(name) then
itemstack:take_item()
end
return itemstack
end
if not minetest.registered_entities[mob] then
return itemstack
end
if minetest.settings:get_bool("only_peaceful_mobs", false)
and minetest.registered_entities[mob].type == "monster" then
minetest.chat_send_player(name, S("Only peaceful mobs allowed!"))
return itemstack
end
pos.y = pos.y - 0.5
local mob = minetest.add_entity(pos, mob)
local entityname = itemstack:get_name()
minetest.log("action", "Player " ..name.." spawned "..entityname.." at "..minetest.pos_to_string(pos))
local ent = mob:get_luaentity()
-- don't set owner if monster or sneak pressed
if ent.type ~= "monster"
and not placer:get_player_control().sneak then
ent.owner = placer:get_player_name()
ent.tamed = true
end
-- set nametag
local nametag = itemstack:get_meta():get_string("name")
if nametag ~= "" then
if string.len(nametag) > MAX_MOB_NAME_LENGTH then
nametag = string.sub(nametag, 1, MAX_MOB_NAME_LENGTH)
end
ent.nametag = nametag
update_tag(ent)
end
-- if not in creative then take item
if not minetest.is_creative_enabled(placer:get_player_name()) then
itemstack:take_item()
end
end
return itemstack
end,
})
end
-- No-op in MCL2 (capturing mobs is not possible).
-- Provided for compability with Mobs Redo
function mcl_mobs:capture_mob(self, clicker, chance_hand, chance_net, chance_lasso, force_take, replacewith)
return false
end
-- No-op in MCL2 (protecting mobs is not possible).
function mcl_mobs:protect(self, clicker)
return false
end
-- feeding, taming and breeding (thanks blert2112)
function mcl_mobs:feed_tame(self, clicker, feed_count, breed, tame, notake)
if not self.follow then
return false
end
-- can eat/tame with item in hand
if self.nofollow or follow_holding(self, clicker) then
local consume_food = false
-- tame if not still a baby
if tame and not self.child then
if not self.owner or self.owner == "" then
self.tamed = true
self.owner = clicker:get_player_name()
consume_food = true
end
end
-- increase health
if self.health < self.hp_max and not consume_food then
consume_food = true
self.health = min(self.health + 4, self.hp_max)
if self.htimer < 1 then
self.htimer = 5
end
self.object:set_hp(self.health)
end
-- make children grow quicker
if not consume_food and self.child == true then
consume_food = true
-- deduct 10% of the time to adulthood
self.hornytimer = self.hornytimer + ((CHILD_GROW_TIME - self.hornytimer) * 0.1)
end
-- breed animals
if breed and not consume_food and self.hornytimer == 0 and not self.horny then
self.food = (self.food or 0) + 1
consume_food = true
if self.food >= feed_count then
self.food = 0
self.horny = true
end
end
update_tag(self)
-- play a sound if the animal used the item and take the item if not in creative
if consume_food then
-- don't consume food if clicker is in creative
if not minetest.is_creative_enabled(clicker:get_player_name()) and not notake then
local item = clicker:get_wielded_item()
item:take_item()
clicker:set_wielded_item(item)
end
-- always play the eat sound if food is used, even in creative
mob_sound(self, "eat", nil, true)
else
-- make sound when the mob doesn't want food
mob_sound(self, "random", true)
end
return true
end
return false
end
-- Spawn a child
function mcl_mobs:spawn_child(pos, mob_type)
local child = minetest.add_entity(pos, mob_type)
if not child then
return
end
local ent = child:get_luaentity()
effect(pos, 15, "mcl_particles_smoke.png", 1, 2, 2, 15, 5)
ent.child = true
local textures
-- using specific child texture (if found)
if ent.child_texture then
textures = ent.child_texture[1]
end
-- and resize to half height
child:set_properties({
textures = textures,
visual_size = {
x = ent.base_size.x * .5,
y = ent.base_size.y * .5,
},
collisionbox = {
ent.base_colbox[1] * .5,
ent.base_colbox[2] * .5,
ent.base_colbox[3] * .5,
ent.base_colbox[4] * .5,
ent.base_colbox[5] * .5,
ent.base_colbox[6] * .5,
},
selectionbox = {
ent.base_selbox[1] * .5,
ent.base_selbox[2] * .5,
ent.base_selbox[3] * .5,
ent.base_selbox[4] * .5,
ent.base_selbox[5] * .5,
ent.base_selbox[6] * .5,
},
})
return child
end
local timer = 0
minetest.register_globalstep(function(dtime)
timer = timer + dtime
if timer < 1 then return end
for _, player in pairs(minetest.get_connected_players()) do
local pos = player:get_pos()
for _, obj in pairs(minetest.get_objects_inside_radius(pos, 47)) do
local lua = obj:get_luaentity()
if lua and lua.is_mob then
lua.lifetimer = max(20, lua.lifetimer)
lua.despawn_immediately = false
end
end
end
timer = 0
end)