minetest/mods/stairs/init.lua
Rui f94eb53e0f New way of registering stairs.
The old one still works.

Adding stairs becomes a lot easier, the groups, sounds and a lot more (see https://github.com/HybridDog/minetest_game/blob/stairsupdate/mods/stairs/init.lua#L150-L153) are added automatically to the stair.
2016-02-15 18:20:15 +01:00

527 lines
13 KiB
Lua

-- Minetest 0.4 mod: stairs
-- See README.txt for licensing and other information.
-- Global namespace for functions
stairs = {}
-- Get setting for replace ABM
local replace = minetest.setting_getbool("enable_stairs_replace_abm")
-- link functions instead of redefining them every time
local function on_place_stair(itemstack, placer, pointed_thing)
if pointed_thing.type ~= "node" then
return itemstack
end
local p0 = pointed_thing.under
local p1 = pointed_thing.above
local param2 = 0
local placer_pos = placer:getpos()
if placer_pos then
local dir = {
x = p1.x - placer_pos.x,
y = p1.y - placer_pos.y,
z = p1.z - placer_pos.z
}
param2 = minetest.dir_to_facedir(dir)
end
if p0.y - 1 == p1.y then
param2 = param2 + 20
if param2 == 21 then
param2 = 23
elseif param2 == 23 then
param2 = 21
end
end
return minetest.item_place(itemstack, placer, pointed_thing, param2)
end
local function on_place_slab(itemstack, placer, pointed_thing, slabname, recipeitem)
if pointed_thing.type ~= "node" then
return itemstack
end
-- If it's being placed on an another similar one, replace it with
-- a full block
local slabpos = nil
local slabnode = nil
local p0 = pointed_thing.under
local p1 = pointed_thing.above
local n0 = minetest.get_node(p0)
local n1 = minetest.get_node(p1)
local param2 = 0
local n0_is_upside_down = (n0.name == slabname and
n0.param2 >= 20)
if n0.name == slabname and not n0_is_upside_down and
p0.y + 1 == p1.y then
slabpos = p0
slabnode = n0
elseif n1.name == slabname then
slabpos = p1
slabnode = n1
end
if slabpos then
-- Remove the slab at slabpos
minetest.remove_node(slabpos)
-- Make a fake stack of a single item and try to place it
local fakestack = ItemStack(recipeitem)
fakestack:set_count(itemstack:get_count())
pointed_thing.above = slabpos
local success
fakestack, success = minetest.item_place(fakestack, placer,
pointed_thing)
-- If the item was taken from the fake stack, decrement original
if success then
itemstack:set_count(fakestack:get_count())
-- Else put old node back
else
minetest.set_node(slabpos, slabnode)
end
return itemstack
end
-- Upside down slabs
if p0.y - 1 == p1.y then
-- Turn into full block if pointing at a existing slab
if n0_is_upside_down then
-- Remove the slab at the position of the slab
minetest.remove_node(p0)
-- Make a fake stack of a single item and try to place it
local fakestack = ItemStack(recipeitem)
fakestack:set_count(itemstack:get_count())
pointed_thing.above = p0
local success
fakestack, success = minetest.item_place(fakestack, placer,
pointed_thing)
-- If the item was taken from the fake stack, decrement original
if success then
itemstack:set_count(fakestack:get_count())
-- Else put old node back
else
minetest.set_node(p0, n0)
end
return itemstack
end
-- Place upside down slab
param2 = 20
end
-- If pointing at the side of a upside down slab
if n0_is_upside_down and p0.y + 1 ~= p1.y then
param2 = 20
end
return minetest.item_place(itemstack, placer, pointed_thing, param2)
end
-- boxes for stairs and slabs
local stairbox = {
type = "fixed",
fixed = {
{-0.5, -0.5, -0.5, 0.5, 0, 0.5},
{-0.5, 0, 0, 0.5, 0.5, 0.5},
},
}
local slabbox = {
type = "fixed",
fixed = {-0.5, -0.5, -0.5, 0.5, 0, 0.5},
}
-- contents of the node definition which gets copied
local to_copy = {"tiles", "use_texture_alpha", "post_effect_color",
"is_ground_content", "walkable", "pointable", "diggable", "climbable",
"buildable_to", "light_source", "damage_per_second", "sounds", "groups",
"sunlight_propagates"}
-- Node will be called like origin, just with "stair_" after the ":"
function stairs.register_stair(data, extradef, groups, images, description, sounds)
if groups then
-- support the previous function using a tail call
local ldata = {
fixed_name = "stairs:stair_" .. data,
origin = extradef,
}
if replace then
ldata.upside_down = ldata.fixed_name .. "upside_down"
end
return stairs.register_stair(
ldata,
{
description = description,
tiles = images,
groups = groups,
sounds = sounds,
}
)
end
local origname = data.origin
local origdef = minetest.registered_nodes[origname]
if not origdef then
origdef = {}
minetest.log("error", "[stairs] "..origname.." should exist before adding a stair for it.")
end
local def = {}
for _,i in pairs(to_copy) do
def[i] = rawget(origdef, i)
end
if origdef.description then
def.description = origdef.description.." Stair"
end
def.drawtype = "mesh"
def.mesh = "stairs_stair.obj"
def.paramtype = "light"
def.paramtype2 = "facedir"
def.selection_box = stairbox
def.collision_box = stairbox
def.on_place = on_place_stair
if extradef then
for i,v in pairs(extradef) do
def[i] = v
end
end
def.groups = def.groups or {}
def.groups.stair = 1
local name = data.fixed_name
if not name then
local modname, nodename = unpack(string.split(origname, ":"))
name = modname..":stair_"..nodename
end
minetest.register_node(":"..name, def)
-- for replace ABM
if data.upside_down then
minetest.register_node(":"..data.upside_down, {
replace_name = name,
groups = {slabs_replace = 1},
})
end
if data.add_crafting == false then
return
end
local input = data.recipe or origname
minetest.register_craft({
output = name .. " 6",
recipe = {
{input, "", ""},
{input, input, ""},
{input, input, input},
},
})
-- Flipped recipe for the silly minecrafters
minetest.register_craft({
output = name .. " 6",
recipe = {
{"", "", input},
{"", input, input},
{input, input, input},
},
})
end
-- Node will be called like origin, just with "slab_" after the ":"
function stairs.register_slab(data, extradef, groups, images, description, sounds)
if groups then
-- support the previous function using a tail call
local ldata = {
fixed_name = "stairs:slab_" .. data,
origin = extradef,
}
if replace then
ldata.upside_down = ldata.fixed_name .. "upside_down"
end
return stairs.register_slab(
ldata,
{
description = description,
tiles = images,
groups = groups,
sounds = sounds,
}
)
end
local origname = data.origin
local origdef = minetest.registered_nodes[origname]
if not origdef then
origdef = {}
minetest.log("error", "[stairs] "..origname.." should exist before adding a slab for it.")
end
local def = {}
for _,i in pairs(to_copy) do
def[i] = rawget(origdef, i)
end
if origdef.description then
def.description = origdef.description.." Slab"
end
def.drawtype = "nodebox"
def.paramtype = "light"
def.paramtype2 = "facedir"
def.node_box = slabbox
local name = data.fixed_name
if not name then
local modname, nodename = unpack(string.split(origname, ":"))
name = modname..":slab_"..nodename
end
def.on_place = function(itemstack, placer, pointed_thing)
return on_place_slab(itemstack, placer, pointed_thing, name, origname)
end
if extradef then
for i,v in pairs(extradef) do
def[i] = v
end
end
def.groups = def.groups or {}
def.groups.slab = 1
minetest.register_node(":"..name, def)
-- for replace ABM
if data.upside_down then
minetest.register_node(":"..data.upside_down, {
replace_name = name,
groups = {slabs_replace = 1},
})
end
if data.add_crafting == false then
return
end
local input = data.recipe or origname
minetest.register_craft({
output = name .. " 6",
recipe = {
{input, input, input},
},
})
end
-- Stair/slab registration function.
-- If groups etc. given (deprecated), nodes will be called stairs:{stair,slab}_<subname>
function stairs.register_stair_and_slab(subname, recipeitem, groups, images, desc_stair, desc_slab, sounds)
stairs.register_stair(subname, recipeitem, groups, images, desc_stair, sounds)
stairs.register_slab(subname, recipeitem, groups, images, desc_slab, sounds)
end
-- Register default stairs and slabs
-- TODO: put this into default and use the new way of adding stairs and slabs
stairs.register_stair_and_slab("wood", "default:wood",
{snappy = 2, choppy = 2, oddly_breakable_by_hand = 2, flammable = 3},
{"default_wood.png"},
"Wooden Stair",
"Wooden Slab",
default.node_sound_wood_defaults())
stairs.register_stair_and_slab("junglewood", "default:junglewood",
{snappy = 2, choppy = 2, oddly_breakable_by_hand = 2, flammable = 3},
{"default_junglewood.png"},
"Junglewood Stair",
"Junglewood Slab",
default.node_sound_wood_defaults())
stairs.register_stair_and_slab("pine_wood", "default:pine_wood",
{snappy = 2, choppy = 2, oddly_breakable_by_hand = 2, flammable = 3},
{"default_pine_wood.png"},
"Pine Wood Stair",
"Pine Wood Slab",
default.node_sound_wood_defaults())
stairs.register_stair_and_slab("acacia_wood", "default:acacia_wood",
{snappy = 2, choppy = 2, oddly_breakable_by_hand = 2, flammable = 3},
{"default_acacia_wood.png"},
"Acacia Wood Stair",
"Acacia Wood Slab",
default.node_sound_wood_defaults())
stairs.register_stair_and_slab("aspen_wood", "default:aspen_wood",
{snappy = 2, choppy = 2, oddly_breakable_by_hand = 2, flammable = 3},
{"default_aspen_wood.png"},
"Aspen Wood Stair",
"Aspen Wood Slab",
default.node_sound_wood_defaults())
stairs.register_stair_and_slab("stone", "default:stone",
{cracky = 3},
{"default_stone.png"},
"Stone Stair",
"Stone Slab",
default.node_sound_stone_defaults())
stairs.register_stair_and_slab("cobble", "default:cobble",
{cracky = 3},
{"default_cobble.png"},
"Cobblestone Stair",
"Cobblestone Slab",
default.node_sound_stone_defaults())
stairs.register_stair_and_slab("stonebrick", "default:stonebrick",
{cracky = 3},
{"default_stone_brick.png"},
"Stone Brick Stair",
"Stone Brick Slab",
default.node_sound_stone_defaults())
stairs.register_stair_and_slab("desert_stone", "default:desert_stone",
{cracky = 3},
{"default_desert_stone.png"},
"Desertstone Stair",
"Desertstone Slab",
default.node_sound_stone_defaults())
stairs.register_stair_and_slab("desert_cobble", "default:desert_cobble",
{cracky = 3},
{"default_desert_cobble.png"},
"Desert Cobblestone Stair",
"Desert Cobblestone Slab",
default.node_sound_stone_defaults())
stairs.register_stair_and_slab("desert_stonebrick", "default:desert_stonebrick",
{cracky = 3},
{"default_desert_stone_brick.png"},
"Desert Stone Brick Stair",
"Desert Stone Brick Slab",
default.node_sound_stone_defaults())
stairs.register_stair_and_slab("sandstone", "default:sandstone",
{crumbly = 2, cracky = 2},
{"default_sandstone.png"},
"Sandstone Stair",
"Sandstone Slab",
default.node_sound_stone_defaults())
stairs.register_stair_and_slab("sandstonebrick", "default:sandstonebrick",
{crumbly = 2, cracky = 2},
{"default_sandstone_brick.png"},
"Sandstone Brick Stair",
"Sandstone Brick Slab",
default.node_sound_stone_defaults())
stairs.register_stair_and_slab("obsidian", "default:obsidian",
{cracky = 1, level = 2},
{"default_obsidian.png"},
"Obsidian Stair",
"Obsidian Slab",
default.node_sound_stone_defaults())
stairs.register_stair_and_slab("obsidianbrick", "default:obsidianbrick",
{cracky = 1, level = 2},
{"default_obsidian_brick.png"},
"Obsidian Brick Stair",
"Obsidian Brick Slab",
default.node_sound_stone_defaults())
stairs.register_stair_and_slab("brick", "default:brick",
{cracky = 3},
{"default_brick.png"},
"Brick Stair",
"Brick Slab",
default.node_sound_stone_defaults())
stairs.register_stair_and_slab("straw", "farming:straw",
{snappy = 3, flammable = 4},
{"farming_straw.png"},
"Straw Stair",
"Straw Slab",
default.node_sound_leaves_defaults())
stairs.register_stair_and_slab("steelblock", "default:steelblock",
{cracky = 1, level = 2},
{"default_steel_block.png"},
"Steel Block Stair",
"Steel Block Slab",
default.node_sound_stone_defaults())
stairs.register_stair_and_slab("copperblock", "default:copperblock",
{cracky = 1, level = 2},
{"default_copper_block.png"},
"Copper Block Stair",
"Copper Block Slab",
default.node_sound_stone_defaults())
stairs.register_stair_and_slab("bronzeblock", "default:bronzeblock",
{cracky = 1, level = 2},
{"default_bronze_block.png"},
"Bronze Block Stair",
"Bronze Block Slab",
default.node_sound_stone_defaults())
stairs.register_stair_and_slab("goldblock", "default:goldblock",
{cracky = 1},
{"default_gold_block.png"},
"Gold Block Stair",
"Gold Block Slab",
default.node_sound_stone_defaults())
-- legacy
-- Register aliases for new pine node names
minetest.register_alias("stairs:stair_pinewood", "stairs:stair_pine_wood")
minetest.register_alias("stairs:slab_pinewood", "stairs:slab_pine_wood")
-- Optionally replace old "upside_down" nodes with new param2 versions.
-- Disabled by default.
if replace then
minetest.register_abm({
nodenames = {"group:slabs_replace"},
interval = 16,
chance = 1,
action = function(pos, node)
node.name = minetest.registered_nodes[node.name].replace_name
node.param2 = node.param2 + 20
if node.param2 == 21 then
node.param2 = 23
elseif node.param2 == 23 then
node.param2 = 21
end
minetest.set_node(pos, node)
end,
})
end