forked from VoxeLibre/VoxeLibre
[mcl_maps] Center, slightly optimize, use position to calculate ID
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@ -1,11 +1,12 @@
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mcl_maps = {}
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local S = minetest.get_translator("mcl_maps")
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local storage = minetest.get_mod_storage()
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local modpath = minetest.get_modpath("mcl_maps")
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local worldpath = minetest.get_worldpath()
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local map_textures_path = worldpath .. "/mcl_maps/"
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local last_finished_id = storage:get_int("next_id") - 1
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local math_min = math.min
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local math_max = math.max
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minetest.mkdir(map_textures_path)
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@ -27,14 +28,12 @@ local loaded_maps = {}
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local c_air = minetest.get_content_id("air")
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function mcl_maps.create_map(pos)
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local minp = vector.multiply(vector.floor(vector.divide(pos, 128)), 128)
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local maxp = vector.add(minp, vector.new(127, 127, 127))
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local minp = vector.subtract(vector.floor(pos), 64)
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local maxp = vector.add(minp, 127)
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local itemstack = ItemStack("mcl_maps:filled_map")
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local meta = itemstack:get_meta()
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local next_id = storage:get_int("next_id")
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storage:set_int("next_id", next_id + 1)
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local id = tostring(next_id)
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local id = string.format(".0f", minetest.hash_node_position(pos))
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meta:set_string("mcl_maps:id", id)
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meta:set_string("mcl_maps:minp", minetest.pos_to_string(minp))
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meta:set_string("mcl_maps:maxp", minetest.pos_to_string(maxp))
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@ -49,71 +48,82 @@ function mcl_maps.create_map(pos)
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local emin, emax = vm:read_from_map(minp, maxp)
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local data = vm:get_data()
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local param2data = vm:get_param2_data()
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local area = VoxelArea:new({MinEdge = emin, MaxEdge = emax})
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local offset_x, offset_y, offset_z = minp.x - emin.x, minp.y - emin.y, minp.z - emin.z
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local dx = emax.x - emin.x + 1
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local dy = (emax.y - emin.y + 1) * dx
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local offset = offset_z * dy + offset_y * dx + offset_x
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local map_y_start = 64 * dx
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local map_y_limit = 127 * dx
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local pixels = {}
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local last_heightmap
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for x = 1, 128 do
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local map_x = minp.x - 1 + x
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local map_x = x + offset
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local heightmap = {}
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for z = 1, 128 do
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local map_z = minp.z - 1 + z
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local map_z = (z-1) * dy + map_x
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local color, height
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for map_y = maxp.y, minp.y, -1 do
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local index = area:index(map_x, map_y, map_z)
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local c_id = data[index]
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if c_id ~= c_air then
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color = color_cache[c_id]
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if color == nil then
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local nodename = minetest.get_name_from_content_id(c_id)
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local def = minetest.registered_nodes[nodename]
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if def then
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local texture
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if def.palette then
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texture = def.palette
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elseif def.tiles then
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texture = def.tiles[1]
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if type(texture) == "table" then
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texture = texture.name
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end
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end
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if texture then
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texture = texture:match("([^=^%^]-([^.]+))$"):split("^")[1]
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end
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if def.palette then
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local palette = palettes[texture]
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color = palette and {palette = palette}
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else
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color = texture_colors[texture]
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end
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local map_y = map_z + map_y_start
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local map_y_limit = map_z + map_y_limit
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while data[map_y] ~= c_air and map_y < map_y_limit do
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map_y = map_y + dx
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end
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while data[map_y] == c_air and map_y > map_z do
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map_y = map_y - dx
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end
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local c_id = data[map_y]
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color = color_cache[c_id]
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if color == nil then
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local nodename = minetest.get_name_from_content_id(c_id)
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local def = minetest.registered_nodes[nodename]
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if def then
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local texture
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if def.palette then
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texture = def.palette
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elseif def.tiles then
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texture = def.tiles[1]
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if type(texture) == "table" then
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texture = texture.name
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end
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end
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if color and color.palette then
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color = color.palette[param2data[index] + 1]
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if texture then
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texture = texture:match("([^=^%^]-([^.]+))$"):split("^")[1]
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end
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if def.palette then
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local palette = palettes[texture]
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color = palette and {palette = palette}
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else
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color_cache[c_id] = color or false
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color = texture_colors[texture]
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end
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if color and last_heightmap then
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local last_height = last_heightmap[z]
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if last_height < map_y then
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color = {
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math.min(255, color[1] + 16),
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math.min(255, color[2] + 16),
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math.min(255, color[3] + 16),
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}
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elseif last_height > map_y then
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color = {
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math.max(0, color[1] - 16),
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math.max(0, color[2] - 16),
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math.max(0, color[3] - 16),
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}
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end
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end
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height = map_y
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break
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end
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end
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if color and color.palette then
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color = color.palette[param2data[map_y] + 1]
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else
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color_cache[c_id] = color or false
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end
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if color and last_heightmap then
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local last_height = last_heightmap[z]
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local y = map_y - map_z
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if last_height < y then
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color = {
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math_min(255, color[1] + 16),
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math_min(255, color[2] + 16),
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math_min(255, color[3] + 16),
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}
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elseif last_height > y then
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color = {
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math_max(0, color[1] - 16),
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math_max(0, color[2] - 16),
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math_max(0, color[3] - 16),
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}
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end
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end
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height = map_y - map_z
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heightmap[z] = height or minp.y
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pixels[z] = pixels[z] or {}
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pixels[z][x] = color or {0, 0, 0}
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