minetest_game/mods/default/functions.lua
2013-07-11 02:28:36 +02:00

316 lines
8.4 KiB
Lua

-- mods/default/functions.lua
--
-- Sounds
--
function default.node_sound_defaults(table)
table = table or {}
table.footstep = table.footstep or
{name="", gain=1.0}
table.dug = table.dug or
{name="default_dug_node", gain=0.25}
table.place = table.place or
{name="default_place_node_hard", gain=1.0}
return table
end
function default.node_sound_stone_defaults(table)
table = table or {}
table.footstep = table.footstep or
{name="default_hard_footstep", gain=0.5}
table.dug = table.dug or
{name="default_hard_footstep", gain=1.0}
default.node_sound_defaults(table)
return table
end
function default.node_sound_dirt_defaults(table)
table = table or {}
table.footstep = table.footstep or
{name="default_dirt_footstep", gain=1.0}
table.dug = table.dug or
{name="default_dirt_footstep", gain=1.5}
table.place = table.place or
{name="default_place_node", gain=1.0}
default.node_sound_defaults(table)
return table
end
function default.node_sound_sand_defaults(table)
table = table or {}
table.footstep = table.footstep or
{name="default_sand_footstep", gain=0.5}
table.dug = table.dug or
{name="default_sand_footstep", gain=1.0}
table.place = table.place or
{name="default_place_node", gain=1.0}
default.node_sound_defaults(table)
return table
end
function default.node_sound_wood_defaults(table)
table = table or {}
table.footstep = table.footstep or
{name="default_wood_footstep", gain=0.5}
table.dug = table.dug or
{name="default_wood_footstep", gain=1.0}
default.node_sound_defaults(table)
return table
end
function default.node_sound_leaves_defaults(table)
table = table or {}
table.footstep = table.footstep or
{name="default_grass_footstep", gain=0.35}
table.dug = table.dug or
{name="default_grass_footstep", gain=0.85}
table.dig = table.dig or
{name="default_dig_crumbly", gain=0.4}
table.place = table.place or
{name="default_place_node", gain=1.0}
default.node_sound_defaults(table)
return table
end
function default.node_sound_glass_defaults(table)
table = table or {}
table.footstep = table.footstep or
{name="default_glass_footstep", gain=0.5}
table.dug = table.dug or
{name="default_break_glass", gain=1.0}
default.node_sound_defaults(table)
return table
end
--
-- Legacy
--
function default.spawn_falling_node(p, nodename)
spawn_falling_node(p, nodename)
end
-- Horrible crap to support old code
-- Don't use this and never do what this does, it's completely wrong!
-- (More specifically, the client and the C++ code doesn't get the group)
function default.register_falling_node(nodename, texture)
minetest.log("error", debug.traceback())
minetest.log('error', "WARNING: default.register_falling_node is deprecated")
if minetest.registered_nodes[nodename] then
minetest.registered_nodes[nodename].groups.falling_node = 1
end
end
--
-- Global callbacks
--
-- Global environment step function
function on_step(dtime)
-- print("on_step")
end
minetest.register_globalstep(on_step)
function on_placenode(p, node)
--print("on_placenode")
end
minetest.register_on_placenode(on_placenode)
function on_dignode(p, node)
--print("on_dignode")
end
minetest.register_on_dignode(on_dignode)
function on_punchnode(p, node)
end
minetest.register_on_punchnode(on_punchnode)
--
-- Lavacooling
--
default.cool_lava_source = function(pos)
minetest.set_node(pos, {name="default:obsidian"})
minetest.sound_play("default_cool_lava", {pos = pos, gain = 0.25})
end
default.cool_lava_flowing = function(pos)
minetest.set_node(pos, {name="default:stone"})
minetest.sound_play("default_cool_lava", {pos = pos, gain = 0.25})
end
minetest.register_abm({
nodenames = {"default:lava_flowing"},
neighbors = {"group:water"},
interval = 1,
chance = 1,
action = function(pos, node, active_object_count, active_object_count_wider)
default.cool_lava_flowing(pos, node, active_object_count, active_object_count_wider)
end,
})
minetest.register_abm({
nodenames = {"default:lava_source"},
neighbors = {"group:water"},
interval = 1,
chance = 1,
action = function(pos, node, active_object_count, active_object_count_wider)
default.cool_lava_source(pos, node, active_object_count, active_object_count_wider)
end,
})
--
-- Papyrus and cactus growing
--
minetest.register_abm({
nodenames = {"default:cactus"},
neighbors = {"group:sand"},
interval = 50,
chance = 20,
action = function(pos, node)
pos.y = pos.y-1
local name = minetest.get_node(pos).name
if minetest.get_item_group(name, "sand") ~= 0 then
pos.y = pos.y+1
local height = 0
while minetest.get_node(pos).name == "default:cactus" and height < 4 do
height = height+1
pos.y = pos.y+1
end
if height < 4 then
if minetest.get_node(pos).name == "air" then
minetest.set_node(pos, {name="default:cactus"})
end
end
end
end,
})
minetest.register_abm({
nodenames = {"default:papyrus"},
neighbors = {"default:dirt", "default:dirt_with_grass"},
interval = 50,
chance = 20,
action = function(pos, node)
pos.y = pos.y-1
local name = minetest.get_node(pos).name
if name == "default:dirt" or name == "default:dirt_with_grass" then
if minetest.find_node_near(pos, 3, {"group:water"}) == nil then
return
end
pos.y = pos.y+1
local height = 0
while minetest.get_node(pos).name == "default:papyrus" and height < 4 do
height = height+1
pos.y = pos.y+1
end
if height < 4 then
if minetest.get_node(pos).name == "air" then
minetest.set_node(pos, {name="default:papyrus"})
end
end
end
end,
})
--
-- Leafdecay
--
-- To enable leaf decay for a node, add it to the "leafdecay" group.
--
-- The rating of the group determines how far from a node in the group "tree"
-- the node can be without decaying.
--
-- If param2 of the node is ~= 0, the node will always be preserved. Thus, if
-- the player places a node of that kind, you will want to set param2=1 or so.
--
-- If the node is in the leafdecay_drop group then the it will always be dropped
-- as an item
default.leafdecay_trunk_cache = {}
default.leafdecay_enable_cache = true
-- Spread the load of finding trunks
default.leafdecay_trunk_find_allow_accumulator = 0
minetest.register_globalstep(function(dtime)
local finds_per_second = 5000
default.leafdecay_trunk_find_allow_accumulator =
math.floor(dtime * finds_per_second)
end)
minetest.register_abm({
nodenames = {"group:leafdecay"},
neighbors = {"air", "group:liquid"},
-- A low interval and a high inverse chance spreads the load
interval = 2,
chance = 5,
action = function(p0, node, _, _)
--print("leafdecay ABM at "..p0.x..", "..p0.y..", "..p0.z..")")
local do_preserve = false
local d = minetest.registered_nodes[node.name].groups.leafdecay
if not d or d == 0 then
--print("not groups.leafdecay")
return
end
local n0 = minetest.get_node(p0)
if n0.param2 ~= 0 then
--print("param2 ~= 0")
return
end
local p0_hash = nil
if default.leafdecay_enable_cache then
p0_hash = minetest.hash_node_position(p0)
local trunkp = default.leafdecay_trunk_cache[p0_hash]
if trunkp then
local n = minetest.get_node(trunkp)
local reg = minetest.registered_nodes[n.name]
-- Assume ignore is a trunk, to make the thing work at the border of the active area
if n.name == "ignore" or (reg and reg.groups.tree and reg.groups.tree ~= 0) then
--print("cached trunk still exists")
return
end
--print("cached trunk is invalid")
-- Cache is invalid
table.remove(default.leafdecay_trunk_cache, p0_hash)
end
end
if default.leafdecay_trunk_find_allow_accumulator <= 0 then
return
end
default.leafdecay_trunk_find_allow_accumulator =
default.leafdecay_trunk_find_allow_accumulator - 1
-- Assume ignore is a trunk, to make the thing work at the border of the active area
local p1 = minetest.find_node_near(p0, d, {"ignore", "group:tree"})
if p1 then
do_preserve = true
if default.leafdecay_enable_cache then
--print("caching trunk")
-- Cache the trunk
default.leafdecay_trunk_cache[p0_hash] = p1
end
end
if not do_preserve then
-- Drop stuff other than the node itself
itemstacks = minetest.get_node_drops(n0.name)
for _, itemname in ipairs(itemstacks) do
if minetest.get_item_group(n0.name, "leafdecay_drop") ~= 0 or
itemname ~= n0.name then
local p_drop = {
x = p0.x - 0.5 + math.random(),
y = p0.y - 0.5 + math.random(),
z = p0.z - 0.5 + math.random(),
}
minetest.add_item(p_drop, itemname)
end
end
-- Remove node
minetest.remove_node(p0)
nodeupdate(p0)
end
end
})