490 lines
13 KiB
Lua
490 lines
13 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
|
|
|
|
minetest.register_abm({
|
|
label = "grow sapling",
|
|
nodenames = {"default:sapling"},
|
|
interval = 10,
|
|
chance = 50,
|
|
action = function(pos, node)
|
|
--if abm_limiter() then return end
|
|
local nu = minetest.get_node({x=pos.x, y=pos.y-1, z=pos.z}).name
|
|
local is_soil = minetest.get_item_group(nu, "soil")
|
|
if is_soil == 0 then
|
|
return
|
|
end
|
|
|
|
minetest.log("action", "A sapling grows into a tree at "..minetest.pos_to_string(pos))
|
|
local vm = minetest.get_voxel_manip()
|
|
local minp, maxp = vm:read_from_map({x=pos.x-16, y=pos.y, z=pos.z-16}, {x=pos.x+16, y=pos.y+16, z=pos.z+16})
|
|
local a = VoxelArea:new{MinEdge=minp, MaxEdge=maxp}
|
|
local data = vm:get_data()
|
|
default.grow_tree(data, a, pos, math.random(1, 4) == 1, math.random(1,100000))
|
|
vm:set_data(data)
|
|
vm:write_to_map(data)
|
|
vm:update_map()
|
|
end
|
|
})
|
|
|
|
minetest.register_abm({
|
|
label = "grow jungle sapling",
|
|
nodenames = {"default:junglesapling"},
|
|
interval = 10,
|
|
chance = 50,
|
|
action = function(pos, node)
|
|
local nu = minetest.get_node({x=pos.x, y=pos.y-1, z=pos.z}).name
|
|
local is_soil = minetest.get_item_group(nu, "soil")
|
|
if is_soil == 0 then
|
|
return
|
|
end
|
|
|
|
minetest.log("action", "A jungle sapling grows into a tree at "..minetest.pos_to_string(pos))
|
|
local vm = minetest.get_voxel_manip()
|
|
local minp, maxp = vm:read_from_map({x=pos.x-16, y=pos.y-1, z=pos.z-16}, {x=pos.x+16, y=pos.y+16, z=pos.z+16})
|
|
local a = VoxelArea:new{MinEdge=minp, MaxEdge=maxp}
|
|
local data = vm:get_data()
|
|
default.grow_jungletree(data, a, pos, math.random(1,100000))
|
|
vm:set_data(data)
|
|
vm:write_to_map(data)
|
|
vm:update_map()
|
|
end
|
|
})
|
|
|
|
--
|
|
-- 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({
|
|
label = "cool lava flow",
|
|
nodenames = {"default:lava_flowing"},
|
|
neighbors = {"group:water"},
|
|
interval = 1,
|
|
chance = 1,
|
|
action = function(pos, node, active_object_count, active_object_count_wider)
|
|
--if abm_limiter() then return end
|
|
default.cool_lava_flowing(pos, node, active_object_count, active_object_count_wider)
|
|
end,
|
|
})
|
|
|
|
minetest.register_abm({
|
|
label = "cool lava source",
|
|
nodenames = {"default:lava_source"},
|
|
neighbors = {"group:water"},
|
|
interval = 1,
|
|
chance = 1,
|
|
action = function(pos, node, active_object_count, active_object_count_wider)
|
|
--if abm_limiter() then return end
|
|
default.cool_lava_source(pos, node, active_object_count, active_object_count_wider)
|
|
end,
|
|
})
|
|
|
|
-- freeze things
|
|
minetest.register_abm({
|
|
label = "freeze things",
|
|
nodenames = {"group:freezes"},
|
|
neighbors = {"group:cold"},
|
|
interval = 10,
|
|
chance = 4,
|
|
action = function(pos, node)
|
|
pos.y = pos.y + 1
|
|
if minetest.get_node(pos).name == "air" then
|
|
pos.y = pos.y - 1
|
|
local new_node = minetest.registered_nodes[node.name].freezemelt
|
|
if new_node ~= nil then
|
|
minetest.set_node(pos,{name=new_node})
|
|
else
|
|
minetest.log("error","Freezing node without freezemelt set: "..node.name)
|
|
end
|
|
end
|
|
end
|
|
})
|
|
|
|
-- melt things
|
|
minetest.register_abm({
|
|
label = "melt things",
|
|
nodenames = {"group:melts"},
|
|
neighbors = {"group:hot"},
|
|
interval = 10,
|
|
chance = 4,
|
|
action = function(pos, node)
|
|
local new_node = minetest.registered_nodes[node.name].freezemelt
|
|
if new_node ~= nil then
|
|
minetest.set_node(pos,{name=new_node})
|
|
else
|
|
minetest.log("error","Thawing node without freezemelt set: "..node.name)
|
|
end
|
|
end
|
|
})
|
|
|
|
--
|
|
-- Papyrus and cactus growing
|
|
--
|
|
|
|
minetest.register_abm({
|
|
label = "grow cactus",
|
|
nodenames = {"default:cactus"},
|
|
neighbors = {"group:sand"},
|
|
interval = 50,
|
|
chance = 20,
|
|
action = function(pos, node)
|
|
--if abm_limiter() then return end
|
|
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({
|
|
label = "grow papyrus",
|
|
nodenames = {"default:papyrus"},
|
|
neighbors = {"default:dirt", "default:dirt_with_grass"},
|
|
interval = 50,
|
|
chance = 20,
|
|
action = function(pos, node)
|
|
--if abm_limiter() then return end
|
|
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
|
|
|
|
function default.leaf_globalstep(dtime)
|
|
local finds_per_second = 5000
|
|
default.leafdecay_trunk_find_allow_accumulator =
|
|
math.floor(dtime * finds_per_second)
|
|
end
|
|
|
|
minetest.register_abm({
|
|
label = "leaf decay",
|
|
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, _, _)
|
|
----if abm_limiter() then return end
|
|
--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
|
|
local itemstacks = minetest.get_node_drops(n0.name)
|
|
for _, itemname in pairs(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
|
|
})
|
|
|
|
function default.serialize_to_file(filename,t)
|
|
local f = io.open(filename, "w")
|
|
if f ~= nil then
|
|
f:write(minetest.serialize(t))
|
|
f:close()
|
|
else
|
|
minetest.log("error","Unable to open for writing "..tostring(filename))
|
|
end
|
|
end
|
|
|
|
function default.deserialize_from_file(filename)
|
|
local f = io.open(filename, "r")
|
|
if f==nil then
|
|
--minetest.log("error","File "..filename.." not found, returning empty table")
|
|
return {}
|
|
end
|
|
local t = f:read("*all")
|
|
f:close()
|
|
if t=="" or t==nil then
|
|
--minetest.log("error","File "..filename.." is blank, returning empty table")
|
|
return {}
|
|
end
|
|
return minetest.deserialize(t)
|
|
end
|
|
|
|
function default.dump_inv(pos,listname,inv)
|
|
if inv == nil then
|
|
local meta = minetest.get_meta(pos)
|
|
inv = meta:get_inventory()
|
|
end
|
|
if inv:get_list(listname) ~= nil then
|
|
for i,stack in pairs(inv:get_list(listname)) do
|
|
default.drop_item(pos,stack)
|
|
stack:clear()
|
|
inv:set_stack(listname, i, stack)
|
|
end
|
|
end
|
|
end
|
|
|
|
function default.drop_item(pos,itemstack,vel,acc)
|
|
-- math.randomseed(os.time() + os.clock())
|
|
local x = math.random(0, 15)/10 - 0.5
|
|
local z = math.random(0, 15)/10 - 0.5
|
|
--local y = math.random(0, 15)/10 - 2
|
|
local np = { }
|
|
np.x = pos.x + x
|
|
np.z = pos.z + z
|
|
np.y = pos.y + .25
|
|
local obj = minetest.add_item(np, itemstack)
|
|
if obj then
|
|
obj:get_luaentity().collect = true
|
|
if vel ~= nil and acc ~= nil then
|
|
obj:get_luaentity().object:setvelocity(vel)
|
|
obj:get_luaentity().object:setacceleration(acc)
|
|
end
|
|
end
|
|
end
|
|
|
|
function default.get_distance(pos1,pos2)
|
|
if ( pos1 ~= nil and pos2 ~= nil ) then
|
|
return math.abs(math.floor(math.sqrt( (pos1.x - pos2.x)^2 + (pos1.z - pos2.z)^2 )))
|
|
else
|
|
return nil
|
|
end
|
|
end
|
|
|
|
function default.get_file_contents(filename)
|
|
local f = io.open(filename, "r")
|
|
if f==nil then
|
|
minetest.log("error","File "..filename.." not found, returning empty table")
|
|
return ""
|
|
end
|
|
local t = f:read("*all")
|
|
f:close()
|
|
if t=="" or t==nil then
|
|
minetest.log("error","File "..filename.." is blank, returning empty table")
|
|
return ""
|
|
end
|
|
return t
|
|
end
|
|
|
|
function randomChance (percent)
|
|
--math.randomseed( os.clock() )
|
|
return percent >= ( math.random(1000, 100000) / 1000 )
|
|
end
|
|
|
|
function default.tprint (tbl, indent)
|
|
if not indent then indent = 0 end
|
|
for k, v in pairs(tbl) do
|
|
local formatting = string.rep(" ", indent) .. k .. ": "
|
|
if type(v) == "table" then
|
|
print(formatting)
|
|
default.tprint(v, indent+1)
|
|
elseif type(v) == 'boolean' then
|
|
print(formatting .. tostring(v))
|
|
else
|
|
print(formatting .. v)
|
|
end
|
|
end
|
|
end
|