nalc_game/mods/stairs/init.lua
Auke Kok b848e35ca5 Stairs: Big simplification of slabs combination
Combine slabs if identical based on orientations using a simple lookup
table if the nodes are identical.

Otherwise relies on place_node() to place the node, which properly
handles rotation compared to adjacent nodes already, and can orient
based on look_dir as well.

Initial slabs placed are oriented based on (1) the orientation of
the pointed "face" (assumes nodes are cubic, of course), and uses
the player look direction to orient the node n/e/w/s if the slab
is horizontal or upside-down. If placed against a vertical face,
the slab is placed against the face without rotation around the axis
perpendicular to that vertical face. This allows upside down placement
and vertical placement without screwdriver.

If a slab is placed on top of an upside down slab, or below a normally
placed slab, the rotation is inverted so that no "floating" slab
is created.

Largely based on kilbith's #807 PR. Slab combining and place_node()
usage by sofar.

Since this relies entirely on `on_place` mechanics, this fails to
combine slabs into a plain node if the space *above* is occupied.
This is unavoidable due to the fact that on_place() happens after
the checks required to see if pointed_thing.above is empty or not.
2016-09-14 06:01:04 +01:00

508 lines
12 KiB
Lua

-- Minetest 0.4 mod: stairs
-- See README.txt for licensing and other information.
-- Global namespace for functions
stairs = {}
-- 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")
-- Get setting for replace ABM
local replace = minetest.setting_getbool("enable_stairs_replace_abm")
-- Register stairs.
-- Node will be called stairs:stair_<subname>
function stairs.register_stair(subname, recipeitem, groups, images, description, sounds)
groups.stair = 1
minetest.register_node(":stairs:stair_" .. subname, {
description = description,
drawtype = "mesh",
mesh = "stairs_stair.obj",
tiles = images,
paramtype = "light",
paramtype2 = "facedir",
is_ground_content = false,
groups = groups,
sounds = sounds,
selection_box = {
type = "fixed",
fixed = {
{-0.5, -0.5, -0.5, 0.5, 0, 0.5},
{-0.5, 0, 0, 0.5, 0.5, 0.5},
},
},
collision_box = {
type = "fixed",
fixed = {
{-0.5, -0.5, -0.5, 0.5, 0, 0.5},
{-0.5, 0, 0, 0.5, 0.5, 0.5},
},
},
on_place = function(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,
})
-- for replace ABM
if replace then
minetest.register_node(":stairs:stair_" .. subname .. "upside_down", {
replace_name = "stairs:stair_" .. subname,
groups = {slabs_replace = 1},
})
end
if recipeitem then
minetest.register_craft({
output = 'stairs:stair_' .. subname .. ' 8',
recipe = {
{recipeitem, "", ""},
{recipeitem, recipeitem, ""},
{recipeitem, recipeitem, recipeitem},
},
})
-- Flipped recipe for the silly minecrafters
minetest.register_craft({
output = 'stairs:stair_' .. subname .. ' 8',
recipe = {
{"", "", recipeitem},
{"", recipeitem, recipeitem},
{recipeitem, recipeitem, recipeitem},
},
})
end
end
-- Slab facedir to placement 6d matching table
local slab_trans_dir = {[0] = 8, 0, 2, 1, 3, 4}
-- Slab facedir when placing initial slab against other surface
local slab_trans_dir_place = {[0] = 0, 20, 12, 16, 4, 8}
-- Register slabs.
-- Node will be called stairs:slab_<subname>
function stairs.register_slab(subname, recipeitem, groups, images, description, sounds)
groups.slab = 1
minetest.register_node(":stairs:slab_" .. subname, {
description = description,
drawtype = "nodebox",
tiles = images,
paramtype = "light",
paramtype2 = "facedir",
is_ground_content = false,
groups = groups,
sounds = sounds,
node_box = {
type = "fixed",
fixed = {-0.5, -0.5, -0.5, 0.5, 0, 0.5},
},
on_place = function(itemstack, placer, pointed_thing)
local under = minetest.get_node(pointed_thing.under)
local wield_item = itemstack:get_name()
if under and wield_item == under.name then
-- place slab using under node orientation
local dir = minetest.dir_to_facedir(vector.subtract(
pointed_thing.above, pointed_thing.under), true)
local p2 = under.param2
-- combine two slabs if possible
if slab_trans_dir[math.floor(p2 / 4)] == dir then
if not recipeitem then
return itemstack
end
local player_name = placer:get_player_name()
if minetest.is_protected(pointed_thing.under, player_name) and not
minetest.check_player_privs(placer, "protection_bypass") then
minetest.record_protection_violation(pointed_thing.under,
player_name)
return
end
minetest.set_node(pointed_thing.under, {name = recipeitem, param2 = p2})
if not minetest.setting_getbool("creative_mode") then
itemstack:take_item()
end
return itemstack
end
-- Placing a slab on an upside down slab should make it right-side up.
if p2 >= 20 and dir == 8 then
p2 = p2 - 20
-- same for the opposite case: slab below normal slab
elseif p2 <= 3 and dir == 4 then
p2 = p2 + 20
end
-- else attempt to place node with proper param2
minetest.item_place_node(ItemStack(wield_item), placer, pointed_thing, p2)
if not minetest.setting_getbool("creative_mode") then
itemstack:take_item()
end
return itemstack
else
-- place slab using look direction of player
local dir = minetest.dir_to_wallmounted(vector.subtract(
pointed_thing.above, pointed_thing.under), true)
local rot = slab_trans_dir_place[dir]
if rot == 0 or rot == 20 then
rot = rot + minetest.dir_to_facedir(placer:get_look_dir())
end
return minetest.item_place(itemstack, placer, pointed_thing, rot)
end
end,
})
-- for replace ABM
if replace then
minetest.register_node(":stairs:slab_" .. subname .. "upside_down", {
replace_name = "stairs:slab_".. subname,
groups = {slabs_replace = 1},
})
end
if recipeitem then
minetest.register_craft({
output = 'stairs:slab_' .. subname .. ' 6',
recipe = {
{recipeitem, recipeitem, recipeitem},
},
})
end
end
-- Optionally replace old "upside_down" nodes with new param2 versions.
-- Disabled by default.
if replace then
minetest.register_abm({
label = "Slab replace",
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
-- Stair/slab registration function.
-- 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
stairs.register_stair_and_slab(
"wood",
"default:wood",
{choppy = 2, oddly_breakable_by_hand = 2, flammable = 2},
{"default_wood.png"},
"Wooden Stair",
"Wooden Slab",
default.node_sound_wood_defaults()
)
stairs.register_stair_and_slab(
"junglewood",
"default:junglewood",
{choppy = 2, oddly_breakable_by_hand = 2, flammable = 2},
{"default_junglewood.png"},
"Jungle Wood Stair",
"Jungle Wood Slab",
default.node_sound_wood_defaults()
)
stairs.register_stair_and_slab(
"pine_wood",
"default:pine_wood",
{choppy = 3, 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",
{choppy = 2, oddly_breakable_by_hand = 2, flammable = 2},
{"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",
{choppy = 3, 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(
"mossycobble",
nil,
{cracky = 3},
{"default_mossycobble.png"},
"Mossy Cobblestone Stair",
"Mossy Cobblestone Slab",
default.node_sound_stone_defaults()
)
stairs.register_stair_and_slab(
"stonebrick",
"default:stonebrick",
{cracky = 2},
{"default_stone_brick.png"},
"Stone Brick Stair",
"Stone Brick Slab",
default.node_sound_stone_defaults()
)
stairs.register_stair_and_slab(
"stone_block",
"default:stone_block",
{cracky = 2},
{"default_stone_block.png"},
"Stone Block Stair",
"Stone Block Slab",
default.node_sound_stone_defaults()
)
stairs.register_stair_and_slab(
"desert_stone",
"default:desert_stone",
{cracky = 3},
{"default_desert_stone.png"},
"Desert Stone Stair",
"Desert Stone 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 = 2},
{"default_desert_stone_brick.png"},
"Desert Stone Brick Stair",
"Desert Stone Brick Slab",
default.node_sound_stone_defaults()
)
stairs.register_stair_and_slab(
"desert_stone_block",
"default:desert_stone_block",
{cracky = 2},
{"default_desert_stone_block.png"},
"Desert Stone Block Stair",
"Desert Stone Block Slab",
default.node_sound_stone_defaults()
)
stairs.register_stair_and_slab(
"sandstone",
"default:sandstone",
{crumbly = 1, cracky = 3},
{"default_sandstone.png"},
"Sandstone Stair",
"Sandstone Slab",
default.node_sound_stone_defaults()
)
stairs.register_stair_and_slab(
"sandstonebrick",
"default:sandstonebrick",
{cracky = 2},
{"default_sandstone_brick.png"},
"Sandstone Brick Stair",
"Sandstone Brick Slab",
default.node_sound_stone_defaults()
)
stairs.register_stair_and_slab(
"sandstone_block",
"default:sandstone_block",
{cracky = 2},
{"default_sandstone_block.png"},
"Sandstone Block Stair",
"Sandstone Block 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(
"obsidian_block",
"default:obsidian_block",
{cracky = 1, level = 2},
{"default_obsidian_block.png"},
"Obsidian Block Stair",
"Obsidian Block 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()
)