mod-sneeker/init.lua

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-- Original code by Rui: WTFPL
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sneaker = {}
sneaker.modname = minetest.get_current_modname()
sneaker.modpath = minetest.get_modpath(sneaker.modname)
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function sneaker.log(message)
minetest.log("action", "[" .. sneaker.modname .. "] " .. message)
end
local scripts = {
"tnt_function",
"spawn",
}
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for I in pairs(scripts) do
dofile(sneaker.modpath .. "/" .. scripts[I] .. ".lua")
end
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local function jump(self,pos,direction)
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local velocity = self.object:get_velocity()
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if minetest.registered_nodes[minetest.get_node(pos).name].climbable then
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self.object:set_velocity({x=velocity.x,y=4,z=velocity.z})
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return
end
local spos = {x=pos.x+direction.x,y=pos.y,z=pos.z+direction.z}
local node = minetest.get_node_or_nil(spos)
spos.y = spos.y+1
local node2 = minetest.get_node_or_nil(spos)
local def,def2 = {}
if node and node.name then
def = minetest.registered_items[node.name]
end
if node2 and node2.name then
def2 = minetest.registered_items[node2.name]
end
if def and def.walkable
and def2 and not def2.walkable
and def.drawtype ~= "fencelike" then
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self.object:set_velocity({
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x=velocity.x*2.2,
y=self.jump_height,
z=velocity.z*2.2
})
end
end
local function random_turn(self)
if self.turn_timer > math.random(2,5) then
local select_turn = math.random(1,3)
if select_turn == 1 then
self.turn = "left"
elseif select_turn == 2 then
self.turn = "right"
elseif select_turn == 3 then
self.turn = "straight"
end
self.turn_timer = 0
self.turn_speed = 0.05*math.random()
end
end
local def = {
hp_max = 20,
physical = true,
collisionbox = {-0.25,-0.7,-0.25, 0.25,0.8,0.25},
visual = "mesh",
mesh = "character.b3d",
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textures = {"sneaker.png"},
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makes_footstep_sound = false,
-- Original
animation = {
stand_START = 0,
stand_END = 79,
walk_START = 168,
walk_END = 187
},
walk_speed = 1.5,
jump_height = 5,
animation_speed = 30,
knockback_level = 2
}
def.on_activate = function(self,staticdata)
self.yaw = 0
self.anim = 1
self.timer = 0
self.visualx = 1
self.jump_timer = 0
self.turn_timer = 0
self.turn_speed = 0
self.powered = false
self.knockback = false
self.state = math.random(1,2)
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self.old_y = self.object:get_pos().y
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local data = minetest.deserialize(staticdata)
if data and type(data) == "table" then
if data.powered == true then
self.powered = true
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self.object:set_properties({textures = {"sneaker_powered.png"}})
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end
else
if math.random(0,20) == 20 then
self.powered = true
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self.object:set_properties({textures = {"sneaker_powered.png"}})
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end
end
end
local function isnan(n)
return tostring(n) == tostring((-1)^.5)
end
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def.on_step = function(self, dtime)
if self.knockback then
return
end
local ANIM_STAND = 1
local ANIM_WALK = 2
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local pos = self.object:get_pos()
local yaw = self.object:get_yaw()
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local inside = minetest.get_objects_inside_radius(pos,10)
local walk_speed = self.walk_speed
local animation = self.animation
local anim_speed = self.animation_speed
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local velocity = self.object:get_velocity()
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self.timer = self.timer+0.01
self.turn_timer = self.turn_timer+0.01
self.jump_timer = self.jump_timer+0.01
if not self.chase
and self.timer > math.random(2,5) then
if math.random() > 0.8 then
self.state = "stand"
else
self.state = "walk"
end
self.timer = 0
end
if self.turn == "right" then
self.yaw = self.yaw+self.turn_speed
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self.object:set_yaw(self.yaw)
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elseif self.turn == "left" then
self.yaw = self.yaw-self.turn_speed
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self.object:set_yaw(self.yaw)
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end
if self.chase and self.visualx < 2 then
if self.hiss == false then
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minetest.sound_play("sneaker_hiss",{pos=pos,gain=1.5,max_hear_distance=2*64})
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end
self.visualx = self.visualx+0.05
self.object:set_properties({
visual_size = {x=self.visualx,y=1}
})
self.hiss = true
elseif self.visualx > 1 then
self.visualx = self.visualx-0.05
self.object:set_properties({
visual_size = {x=self.visualx,y=1}
})
self.hiss = false
end
self.chase = false
for _,object in ipairs(inside) do
if object:is_player() then
self.state = "chase"
end
end
if self.state == "stand" then
if self.anim ~= ANIM_STAND then
self.object:set_animation({x=animation.stand_START,y=animation.stand_END},anim_speed,0)
self.anim = ANIM_STAND
end
random_turn(self)
if velocity.x ~= 0
or velocity.z ~= 0 then
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self.object:set_velocity({x=0,y=velocity.y,z=0})
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end
end
if self.state == "walk" then
if self.anim ~= ANIM_WALK then
self.object:set_animation({x=animation.walk_START,y=animation.walk_END},anim_speed,0)
self.anim = ANIM_WALK
end
self.direction = {x=math.sin(yaw)*-1,y=-10,z=math.cos(yaw)}
if self.direction then
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self.object:set_velocity({x=self.direction.x*walk_speed,y=velocity.y,z=self.direction.z*walk_speed})
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end
random_turn(self)
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local velocity = self.object:get_velocity()
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if self.turn_timer > 1 then
local direction = self.direction
local npos = {x=pos.x+direction.x,y=pos.y+0.2,z=pos.z+direction.z}
if velocity.x == 0 or velocity.z == 0
or minetest.registered_nodes[minetest.get_node(npos).name].walkable then
local select_turn = math.random(1,2)
if select_turn == 1 then
self.turn = "left"
elseif select_turn == 2 then
self.turn = "right"
end
self.turn_timer = 0
self.turn_speed = 0.05*math.random()
end
end
-- Jump
if self.jump_timer > 0.2 then
jump(self,pos,self.direction)
end
end
if self.state == "chase" then
if self.anim ~= ANIM_WALK then
self.object:set_animation({x=animation.walk_START,y=animation.walk_END},anim_speed,0)
self.anim = ANIM_WALK
end
self.turn = "straight"
local inside_2 = minetest.get_objects_inside_radius(pos,2)
-- Boom
if #inside_2 ~= 0 then
for _,object in ipairs(inside_2) do
if object:is_player() and object:get_hp() ~= 0 then
self.chase = true
if self.visualx >= 2 then
self.object:remove()
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sneaker.boom(pos,self.powered)
minetest.sound_play("sneaker_explode",{pos=pos,gain=1.5,max_hear_distance=2*64})
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end
end
end
end
if #inside ~= 0 then
for _,object in ipairs(inside) do
if object:is_player() and object:get_hp() ~= 0 then
if #inside_2 ~= 0 then
for _,object in ipairs(inside_2) do
-- Stop move
if object:is_player() then
if self.anim ~= ANIM_STAND then
self.object:set_animation({x=animation.stand_START,y=animation.stand_END},anim_speed,0)
self.anim = ANIM_STAND
end
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self.object:set_velocity({x=0,y=velocity.y,z=0})
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return
end
end
end
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local ppos = object:get_pos()
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self.vec = {x=ppos.x-pos.x,y=ppos.y-pos.y,z=ppos.z-pos.z}
self.yaw = math.atan(self.vec.z/self.vec.x)+math.pi^2
if ppos.x > pos.x then
self.yaw = self.yaw+math.pi
end
self.yaw = self.yaw-2
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self.object:set_yaw(self.yaw)
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self.direction = {x=math.sin(self.yaw)*-1,y=0,z=math.cos(self.yaw)}
local direction = self.direction
-- FIXME: hack
local can_set = true
for _, c in ipairs({direction.x*2.5, direction.z*2.5}) do
if isnan(c) then
can_set = false
break
end
end
if can_set then
self.object:set_velocity({x=direction.x*2.5,y=velocity.y,z=direction.z*2.5})
end
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-- Jump
if self.jump_timer > 0.2 then
jump(self,pos,direction)
end
end
end
else
self.state = "stand"
end
end
-- Swim
local node = minetest.get_node(pos)
if minetest.get_item_group(node.name,"water") ~= 0 then
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self.object:set_acceleration({x=0,y=1,z=0})
local velocity = self.object:get_velocity()
if self.object:get_velocity().y > 5 then
self.object:set_velocity({x=0,y=velocity.y-velocity.y/2,z=0})
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else
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self.object:set_velocity({x=0,y=velocity.y+1,z=0})
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end
else
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self.object:set_acceleration({x=0,y=-10,z=0})
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end
end
def.on_punch = function(self,puncher,time_from_last_punch,tool_capabilities,dir)
if self.knockback == false then
local knockback_level = self.knockback_level
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self.object:set_velocity({x=dir.x*knockback_level,y=3,z=dir.z*knockback_level})
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self.knockback = true
minetest.after(0.6,function()
self.knockback = false
end)
end
if self.object:get_hp() < 1 then
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local pos = self.object:get_pos()
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local x = 1/math.random(1,5)*dir.x
local z = 1/math.random(1,5)*dir.z
local p = {x=pos.x+x,y=pos.y,z=pos.z+z}
local node = minetest.get_node_or_nil(p)
if node == nil or not node.name or node.name ~= "air" then
p = pos
end
local obj = minetest.add_item(p, {name="tnt:gunpowder",count=math.random(0,2)})
end
end
def.get_staticdata = function(self)
return minetest.serialize({
powered = self.powered
})
end
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minetest.register_entity("sneaker:sneaker",def)
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if minetest.global_exists("spawneggs") then
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minetest.register_craftitem("sneaker:spawnegg",{
description = "Sneaker Spawn Egg",
inventory_image = "sneaker_spawnegg.png",
stack_max = 64,
on_place = function(itemstack,placer,pointed_thing)
if pointed_thing.type == "node" then
local pos = pointed_thing.above
pos.y = pos.y+1
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minetest.add_entity(pos,"sneaker:sneaker")
if not minetest.settings:get_bool("creative_mode", false) then
itemstack:take_item()
end
return itemstack
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end
end
})
minetest.register_craft({
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output = "sneaker:spawnegg",
type = "shapeless",
recipe = {"spawneggs:egg", "tnt:tnt",},
})
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minetest.register_alias("spawneggs:sneaker", "sneaker:spawnegg")
end