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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
end
--- check if 2 given nodes can and may be build to a place
local function is_buildable_to(placer_name, pos, def, pos2)
if not def then
--- check if all nodes can and may be build to
local function is_buildable_to(placer_name, ...)
for _, pos in ipairs({...}) do
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
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
return true
end
-- 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 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())
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
@ -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
-- or follow an existing diagonal with another.
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))
or not is_buildable_to(placer_name, right_fwd_above_pos, nil, right_fwd_above_pos) then
and below_node and is_buildable_to(placer_name, below_pos, below_pos))
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")
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))
or not is_buildable_to(placer_name, left_fwd_above_pos, nil, left_fwd_above_pos) then
and below_node and is_buildable_to(placer_name, below_pos, below_pos))
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")
-- 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
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
pos = fwd_pos
new_place_name = string.gsub(left_fwd_below_node.name, "_diagonal_.-$", "_horizontal")
elseif right_fwd_below_node and string.find(right_fwd_below_node.name, "homedecor:banister_.*_diagonal")
and is_buildable_to(placer_name, fwd_pos, nil, fwd_pos) then
and is_buildable_to(placer_name, fwd_pos, fwd_pos) then
fdir = right_fwd_below_node.param2
pos = fwd_pos
new_place_name = string.gsub(right_fwd_below_node.name, "_diagonal_.-$", "_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
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
pos = fwd_pos
new_place_name = string.gsub(left_fwd_node.name, "_diagonal_.-$", "_horizontal")
elseif right_fwd_node and string.find(right_fwd_node.name, "homedecor:banister_.*_diagonal")
and is_buildable_to(placer_name, fwd_pos, nil, fwd_pos) then
and is_buildable_to(placer_name, fwd_pos, fwd_pos) then
fdir = right_fwd_node.param2
pos = fwd_pos
new_place_name = string.gsub(right_fwd_node.name, "_diagonal_.-$", "_horizontal")