mirror of
https://github.com/minetest-mods/moreblocks.git
synced 2024-11-15 23:10:18 +01:00
110 lines
3.3 KiB
Lua
110 lines
3.3 KiB
Lua
local api = stairsplus.api
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local legacy_mode = stairsplus.settings.legacy_mode
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local legacy_place_mechanic = stairsplus.settings.legacy_place_mechanic
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if legacy_place_mechanic then
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local wall_right_dirmap = {9, 18, 7, 12}
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local wall_left_dirmap = {11, 16, 5, 14}
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local ceil_dirmap = {20, 23, 22, 21}
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function api.on_place(itemstack, placer, pointed_thing)
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if not minetest.is_player(placer) then
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return minetest.item_place(itemstack, placer, pointed_thing)
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end
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local controls = placer:get_player_control()
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local sneak = controls.sneak
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local aux = controls.aux1
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local shaped_node_name = itemstack:get_name()
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local shape = api.get_shape_of_shaped_node(shaped_node_name)
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local under = pointed_thing.under
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local under_node = minetest.get_node(under)
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local under_shape = api.get_shape_of_shaped_node(under_node.name)
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local same_cat = shape == under_shape
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-- standard (floor) facedir, also used for sneak placement against the lower half of the wall
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local p2 = placer and minetest.dir_to_facedir(placer:get_look_dir()) or 0
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-- check which face and which quadrant we are interested in
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-- this is used both to check if we're handling parallel placement in the same-category case,
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-- and in general for sneak placement
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local face_pos = minetest.pointed_thing_to_face_pos(placer, pointed_thing)
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local face_off = vector.subtract(face_pos, under)
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-- we cannot trust face_off to tell us the correct directionif the
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-- under node has a non-standard shape, so use the distance between under and above
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local wallmounted = minetest.dir_to_wallmounted(vector.subtract(pointed_thing.above, under))
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if same_cat and not aux then
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p2 = under_node.param2
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-- flip if placing above or below an upright or upside-down node
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-- TODO should we also flip when placing next to a side-mounted node?
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if wallmounted < 2 then
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if p2 < 4 then
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p2 = (p2 + 2) % 4
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p2 = ceil_dirmap[p2 + 1]
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elseif p2 > 19 then
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p2 = ceil_dirmap[p2 - 19] - 20
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p2 = (p2 + 2) % 4
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end
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end
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else
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-- for same-cat placement, aux is used to disable param2 copying
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if same_cat then
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aux = not aux
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end
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local remap = nil
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-- standard placement against the wall
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local use_wallmap = (wallmounted > 1 and not sneak) or (wallmounted < 2 and sneak)
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-- standard placement against the ceiling, or sneak placement against the upper half of the wall
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local use_ceilmap = wallmounted == 1 and not sneak
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use_ceilmap = use_ceilmap or (wallmounted > 1 and sneak and face_off.y > 0)
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if use_wallmap then
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local left = (p2 == 0 and face_off.x < 0) or
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(p2 == 1 and face_off.z > 0) or
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(p2 == 2 and face_off.x > 0) or
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(p2 == 3 and face_off.z < 0)
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if aux then
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left = not left
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end
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remap = left and wall_left_dirmap or wall_right_dirmap
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elseif use_ceilmap then
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remap = ceil_dirmap
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end
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if aux then
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p2 = (p2 + 2) % 4
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end
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if remap then
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p2 = remap[p2 + 1]
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end
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end
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return minetest.item_place(itemstack, placer, pointed_thing, p2)
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end
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else
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api.on_place = minetest.item_place
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end
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function api.scale_light(light_source, shape_def)
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if not light_source or light_source == 0 then
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return 0
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elseif legacy_mode then
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return light_source - 1
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end
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return math.max(1, math.min(math.round(light_source * shape_def.eighths / 4), light_source))
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end
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