298 lines
7.5 KiB
Lua
298 lines
7.5 KiB
Lua
mcl_paintings = {}
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dofile(minetest.get_modpath(minetest.get_current_modname()).."/paintings.lua")
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local S = minetest.get_translator("mcl_paintings")
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local wood = "[combine:16x16:-192,0=mcl_paintings_paintings.png"
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local is_protected = function(pos, name)
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if minetest.is_protected(pos, name) then
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minetest.record_protection_violation(pos, name)
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return true
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end
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return false
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end
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-- Check if there's a painting for provided painting size.
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-- If yes, returns the arguments.
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-- If not, returns the next smaller available painting.
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local shrink_painting = function(x, y)
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if x > 4 or y > 4 then
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return nil
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end
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local xstart = x
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local painting
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while not painting do
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painting = mcl_paintings.paintings[y] and mcl_paintings.paintings[y][x]
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if type(painting) == "table" then
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break
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elseif type(painting) == "number" then
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x = painting
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painting = nil
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else
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x = xstart
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y = y - 1
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end
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if y < 1 then
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return nil
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end
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end
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if type(painting) == "table" then
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return x, y
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end
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end
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local get_painting = function(x, y, motive)
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local painting = mcl_paintings.paintings[y] and mcl_paintings.paintings[y][x] and mcl_paintings.paintings[y][x][motive]
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if not painting then
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return nil
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end
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local px, py = -painting.cx, -painting.cy
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local sx, sy = 16*x, 16*y
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return "[combine:"..sx.."x"..sy..":"..px..","..py.."=mcl_paintings_paintings.png"
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end
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local get_random_painting = function(x, y)
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if not mcl_paintings.paintings[y] or not mcl_paintings.paintings[y][x] then
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return nil
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end
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local max = #mcl_paintings.paintings[y][x]
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if max < 1 then
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return nil
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end
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local r = math.random(1, max)
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return get_painting(x, y, r), r
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end
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local size_to_minmax = function(size)
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local min, max
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if size == 2 then
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min = -0.5
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max = 1.5
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elseif size == 3 then
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min = -1.5
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max = 1.5
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elseif size == 4 then
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min = -1.5
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max = 2.5
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else
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min = -0.5
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max = 0.5
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end
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return min, max
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end
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local size_to_minmax_entity = function(size)
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return -size/2, size/2
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end
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local set_entity = function(object)
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local ent = object:get_luaentity()
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local wallm = ent._facing
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local xsize = ent._xsize
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local ysize = ent._ysize
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local exmin, exmax = size_to_minmax_entity(xsize)
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local eymin, eymax = size_to_minmax_entity(ysize)
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local visual_size = { x=xsize-0.0001, y=ysize-0.0001, z=1/32 }
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if not ent._xsize or not ent._ysize or not ent._motive then
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minetest.log("error", "[mcl_paintings] Painting loaded with missing painting values!")
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return
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end
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local painting = get_painting(xsize, ysize, ent._motive)
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if not painting then
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minetest.log("error", "[mcl_paintings] No painting found for size "
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..xsize..","..ysize..", motive number "..ent._motive.."!")
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return
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end
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local box
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if wallm == 2 then
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box = { -3/128, eymin, exmin, 1/64, eymax, exmax }
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elseif wallm == 3 then
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box = { -1/64, eymin, exmin, 3/128, eymax, exmax }
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elseif wallm == 4 then
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box = { exmin, eymin, -3/128, exmax, eymax, 1/64 }
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elseif wallm == 5 then
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box = { exmin, eymin, -1/64, exmax, eymax, 3/128 }
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end
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object:set_properties({
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selectionbox = box,
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visual_size = visual_size,
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textures = { wood, wood, wood, wood, painting, wood },
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})
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local dir = minetest.wallmounted_to_dir(wallm)
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if not dir then
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return
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end
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object:set_yaw(minetest.dir_to_yaw(dir))
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end
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minetest.register_entity("mcl_paintings:painting", {
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visual = "cube",
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visual_size = { x=0.999, y=0.999, z=1/32 },
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selectionbox = { -1/64, -0.5, -0.5, 1/64, 0.5, 0.5 },
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physical = false,
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collide_with_objects = false,
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textures = { wood, wood, wood, wood, wood, wood },
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hp_max = 1,
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_motive = 0,
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_pos = nil,
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_facing = 2,
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_xsize = 1,
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_ysize = 1,
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on_activate = function(self, staticdata)
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if staticdata and staticdata ~= "" then
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local data = minetest.deserialize(staticdata)
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if data then
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self._facing = data._facing
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self._pos = data._pos
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self._motive = data._motive
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self._xsize = data._xsize
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self._ysize = data._ysize
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end
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end
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set_entity(self.object)
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end,
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get_staticdata = function(self)
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local data = {
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_facing = self._facing,
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_pos = self._pos,
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_motive = self._motive,
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_xsize = self._xsize,
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_ysize = self._ysize,
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}
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return minetest.serialize(data)
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end,
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on_death = function(self, killer)
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-- Drop as item on death
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if not minetest.settings:get_bool("creative_mode") then
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local pos = self._pos
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if not pos then
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pos = self.object:get_pos()
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end
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minetest.add_item(pos, "mcl_paintings:painting")
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end
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end,
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})
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minetest.register_craftitem("mcl_paintings:painting", {
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description = S("Painting"),
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inventory_image = "mcl_paintings_painting.png",
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on_place = function(itemstack, placer, pointed_thing)
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if pointed_thing.type ~= "node" then
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return itemstack
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end
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local dir = vector.subtract(pointed_thing.above, pointed_thing.under)
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dir = vector.normalize(dir)
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if dir.y ~= 0 then
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-- Ceiling/floor paintings are not supported
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return itemstack
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end
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local wallm = minetest.dir_to_wallmounted(dir)
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if wallm then
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local ppos = pointed_thing.above
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local xmax
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local ymax = 4
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local xmaxes = {}
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local ymaxed = false
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local negative = dir.x < 0 or dir.z > 0
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-- Check maximum possible painting size
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local t
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for y=0,3 do
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for x=0,3 do
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local k = x
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if negative then
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k = -k
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end
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if dir.z ~= 0 then
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t = {x=k,y=y,z=0}
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else
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t = {x=0,y=y,z=k}
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end
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local unode = minetest.get_node(vector.add(pointed_thing.under, t))
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local anode = minetest.get_node(vector.add(ppos, t))
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local udef = minetest.registered_nodes[unode.name]
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local adef = minetest.registered_nodes[anode.name]
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if (not (udef and udef.walkable)) or (not adef or adef.walkable) then
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xmaxes[y+1] = x
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if x == 0 and not ymaxed then
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ymax = y
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ymaxed = true
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end
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break
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end
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end
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if not xmaxes[y] then
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xmaxes[y] = 4
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end
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end
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xmax = math.max(unpack(xmaxes))
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local xsize, ysize = xmax, ymax
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xsize, ysize = shrink_painting(xsize, ysize)
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if not xsize then
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return itemstack
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end
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local _, exmax = size_to_minmax_entity(xsize)
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local _, eymax = size_to_minmax_entity(ysize)
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local pposa = vector.subtract(ppos, vector.multiply(dir, 0.5-5/256))
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local name = placer:get_player_name()
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local pexmax
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local peymax = eymax - 0.5
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local n
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if negative then
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pexmax = -exmax + 0.5
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n = -1
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else
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pexmax = exmax - 0.5
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n = 1
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end
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if is_protected(ppos, name) then return itemstack end
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local ppos2
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if dir.z ~= 0 then
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pposa = vector.add(pposa, {x=pexmax, y=peymax, z=0})
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ppos2 = vector.add(ppos, {x = (xsize-1)*n, y = ysize-1, z = 0})
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else
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pposa = vector.add(pposa, {x=0, y=peymax, z=pexmax})
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ppos2 = vector.add(ppos, {x = 0, y = ysize-1, z = (xsize-1)*n})
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end
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if is_protected(ppos2, name) then return itemstack end
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local painting, pid = get_random_painting(xsize, ysize)
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if not painting then
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minetest.log("error", "[mcl_paintings] No painting found for size "..xsize..","..ysize.."!")
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return itemstack
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end
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local staticdata = {
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_facing = wallm,
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_pos = ppos,
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_motive = pid,
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_xsize = xsize,
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_ysize = ysize,
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}
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local obj = minetest.add_entity(pposa, "mcl_paintings:painting", minetest.serialize(staticdata))
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if not obj then
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return itemstack
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end
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else
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return itemstack
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end
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if not minetest.settings:get_bool("creative_mode") then
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itemstack:take_item()
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end
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return itemstack
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end,
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})
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minetest.register_craft({
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output = "mcl_paintings:painting",
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recipe = {
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{ "mcl_core:stick", "mcl_core:stick", "mcl_core:stick" },
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{ "mcl_core:stick", "group:wool", "mcl_core:stick" },
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{ "mcl_core:stick", "mcl_core:stick", "mcl_core:stick" },
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}
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})
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