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let is_buildable_to take any number of positions

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Tim 2015-09-08 17:29:17 +02:00
parent 2896f48ed1
commit aa0519b13b
1 changed files with 17 additions and 20 deletions
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37
homedecor/handlers/expansion.lua
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@ -51,25 +51,22 @@ local function select_node(pointed_thing)
return def and pos, def return def and pos, def
end end
--- check if 2 given nodes can and may be build to a place --- check if all nodes can and may be build to
local function is_buildable_to(placer_name, pos, def, pos2) local function is_buildable_to(placer_name, ...)
if not def then for _, pos in ipairs({...}) do
local node = minetest.get_node_or_nil(pos) local node = minetest.get_node_or_nil(pos)
def = node and minetest.registered_nodes[node.name] local def = node and minetest.registered_nodes[node.name]
if not (def and def.buildable_to) or minetest.is_protected(pos, placer_name) then
return false
end
end end
return true
local node = minetest.get_node_or_nil(pos2)
local def2 = node and minetest.registered_nodes[node.name]
return def and def.buildable_to and def2 and def2.buildable_to
and not minetest.is_protected(pos, placer_name)
and not minetest.is_protected(pos2, placer_name)
end end
-- place one or two nodes if and only if both can be placed -- place one or two nodes if and only if both can be placed
local function stack(itemstack, placer, fdir, pos, def, pos2, node1, node2) local function stack(itemstack, placer, fdir, pos, def, pos2, node1, node2)
local placer_name = placer:get_player_name() or "" local placer_name = placer:get_player_name() or ""
if is_buildable_to(placer_name, pos, def, pos2) then if is_buildable_to(placer_name, pos, pos2) then
local fdir = fdir or minetest.dir_to_facedir(placer:get_look_dir()) local fdir = fdir or minetest.dir_to_facedir(placer:get_look_dir())
minetest.set_node(pos, { name = node1, param2 = fdir }) minetest.set_node(pos, { name = node1, param2 = fdir })
node2 = node2 or "air" -- this can be used to clear buildable_to nodes even though we are using a multinode mesh node2 = node2 or "air" -- this can be used to clear buildable_to nodes even though we are using a multinode mesh
@ -291,12 +288,12 @@ function homedecor.place_banister(itemstack, placer, pointed_thing)
-- try to place a diagonal one on the side of blocks stacked like stairs -- try to place a diagonal one on the side of blocks stacked like stairs
-- or follow an existing diagonal with another. -- or follow an existing diagonal with another.
if (left_below_node and string.find(left_below_node.name, "banister_.-_diagonal_right") if (left_below_node and string.find(left_below_node.name, "banister_.-_diagonal_right")
and below_node and is_buildable_to(placer_name, below_pos, nil, below_pos)) and below_node and is_buildable_to(placer_name, below_pos, below_pos))
or not is_buildable_to(placer_name, right_fwd_above_pos, nil, right_fwd_above_pos) then or not is_buildable_to(placer_name, right_fwd_above_pos, right_fwd_above_pos) then
new_place_name = string.gsub(new_place_name, "_horizontal", "_diagonal_right") new_place_name = string.gsub(new_place_name, "_horizontal", "_diagonal_right")
elseif (right_below_node and string.find(right_below_node.name, "banister_.-_diagonal_left") elseif (right_below_node and string.find(right_below_node.name, "banister_.-_diagonal_left")
and below_node and is_buildable_to(placer_name, below_pos, nil, below_pos)) and below_node and is_buildable_to(placer_name, below_pos, below_pos))
or not is_buildable_to(placer_name, left_fwd_above_pos, nil, left_fwd_above_pos) then or not is_buildable_to(placer_name, left_fwd_above_pos, left_fwd_above_pos) then
new_place_name = string.gsub(new_place_name, "_horizontal", "_diagonal_left") new_place_name = string.gsub(new_place_name, "_horizontal", "_diagonal_left")
-- try to follow a diagonal with the corresponding horizontal -- try to follow a diagonal with the corresponding horizontal
@ -310,12 +307,12 @@ function homedecor.place_banister(itemstack, placer, pointed_thing)
-- try to place a horizontal in-line with the nearest diagonal, at the top -- try to place a horizontal in-line with the nearest diagonal, at the top
elseif left_fwd_below_node and string.find(left_fwd_below_node.name, "homedecor:banister_.*_diagonal") elseif left_fwd_below_node and string.find(left_fwd_below_node.name, "homedecor:banister_.*_diagonal")
and is_buildable_to(placer_name, fwd_pos, nil, fwd_pos) then and is_buildable_to(placer_name, fwd_pos, fwd_pos) then
fdir = left_fwd_below_node.param2 fdir = left_fwd_below_node.param2
pos = fwd_pos pos = fwd_pos
new_place_name = string.gsub(left_fwd_below_node.name, "_diagonal_.-$", "_horizontal") new_place_name = string.gsub(left_fwd_below_node.name, "_diagonal_.-$", "_horizontal")
elseif right_fwd_below_node and string.find(right_fwd_below_node.name, "homedecor:banister_.*_diagonal") elseif right_fwd_below_node and string.find(right_fwd_below_node.name, "homedecor:banister_.*_diagonal")
and is_buildable_to(placer_name, fwd_pos, nil, fwd_pos) then and is_buildable_to(placer_name, fwd_pos, fwd_pos) then
fdir = right_fwd_below_node.param2 fdir = right_fwd_below_node.param2
pos = fwd_pos pos = fwd_pos
new_place_name = string.gsub(right_fwd_below_node.name, "_diagonal_.-$", "_horizontal") new_place_name = string.gsub(right_fwd_below_node.name, "_diagonal_.-$", "_horizontal")
@ -330,12 +327,12 @@ function homedecor.place_banister(itemstack, placer, pointed_thing)
-- try to place a horizontal in-line with the nearest diagonal, at the bottom -- try to place a horizontal in-line with the nearest diagonal, at the bottom
elseif left_fwd_node and string.find(left_fwd_node.name, "homedecor:banister_.*_diagonal") elseif left_fwd_node and string.find(left_fwd_node.name, "homedecor:banister_.*_diagonal")
and is_buildable_to(placer_name, fwd_pos, nil, fwd_pos) then and is_buildable_to(placer_name, fwd_pos, fwd_pos) then
fdir = left_fwd_node.param2 fdir = left_fwd_node.param2
pos = fwd_pos pos = fwd_pos
new_place_name = string.gsub(left_fwd_node.name, "_diagonal_.-$", "_horizontal") new_place_name = string.gsub(left_fwd_node.name, "_diagonal_.-$", "_horizontal")
elseif right_fwd_node and string.find(right_fwd_node.name, "homedecor:banister_.*_diagonal") elseif right_fwd_node and string.find(right_fwd_node.name, "homedecor:banister_.*_diagonal")
and is_buildable_to(placer_name, fwd_pos, nil, fwd_pos) then and is_buildable_to(placer_name, fwd_pos, fwd_pos) then
fdir = right_fwd_node.param2 fdir = right_fwd_node.param2
pos = fwd_pos pos = fwd_pos
new_place_name = string.gsub(right_fwd_node.name, "_diagonal_.-$", "_horizontal") new_place_name = string.gsub(right_fwd_node.name, "_diagonal_.-$", "_horizontal")