Add API to create filled map
This commit is contained in:
Elias Fleckenstein
parent
e11185638f
commit
2228b30658
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@ -1,3 +1,5 @@
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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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@ -25,127 +27,122 @@ local loaded_maps = {}
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local c_air = minetest.get_content_id("air")
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-- Turn empty map into filled map by rightclick
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local make_filled_map = function(itemstack, placer, pointed_thing)
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local new_map = ItemStack("mcl_maps:filled_map")
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if minetest.settings:get_bool("enable_real_maps", true) then
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local meta = new_map:get_meta()
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local id = storage:get_int("next_id")
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storage:set_int("next_id", id + 1)
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local texture_file = "mcl_maps_map_texture_" .. id .. ".tga"
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local texture_path = map_textures_path .. texture_file
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local texture = "[combine:140x140:0,0=mcl_maps_map_background.png:6,6=" .. texture_file
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meta:set_int("mcl_maps:id", id)
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meta:set_string("mcl_maps:texture", texture)
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meta:set_string("mcl_maps:texture_path", texture_path)
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tt.reload_itemstack_description(new_map)
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creating_maps[texture] = true
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local pos = placer:get_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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minetest.emerge_area(minp, maxp, function(blockpos, action, calls_remaining)
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if calls_remaining < 1 then
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local vm = minetest.get_voxel_manip()
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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 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 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 color
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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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function mcl_maps.create_map(pos)
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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 id = storage:get_int("next_id")
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storage:set_int("next_id", id + 1)
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local texture_file = "mcl_maps_map_texture_" .. id .. ".tga"
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local texture_path = map_textures_path .. texture_file
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local texture = "[combine:140x140:0,0=mcl_maps_map_background.png:6,6=" .. texture_file
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meta:set_int("mcl_maps:id", id)
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meta:set_string("mcl_maps:texture", texture)
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meta:set_string("mcl_maps:texture_path", texture_path)
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tt.reload_itemstack_description(itemstack)
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creating_maps[texture] = true
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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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minetest.emerge_area(minp, maxp, function(blockpos, action, calls_remaining)
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if calls_remaining > 0 then
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return
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end
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local vm = minetest.get_voxel_manip()
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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 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 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 color
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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 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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heightmap[z] = height
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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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if color and color.palette then
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color = color.palette[param2data[index] + 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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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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last_heightmap = heightmap
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end
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tga_encoder.image(pixels):save(texture_path)
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creating_maps[texture] = false
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heightmap[z] = height
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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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end
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end)
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end
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itemstack:take_item()
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if itemstack:is_empty() then
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return new_map
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else
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local inv = placer:get_inventory()
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if inv:room_for_item("main", new_map) then
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inv:add_item("main", new_map)
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else
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minetest.add_item(placer:get_pos(), new_map)
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last_heightmap = heightmap
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end
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tga_encoder.image(pixels):save(texture_path)
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creating_maps[texture] = false
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end)
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return itemstack
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end
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-- Turn empty map into filled map by rightclick
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local make_filled_map = function(itemstack, placer, pointed_thing)
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if minetest.settings:get_bool("enable_real_maps", true) then
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local new_map = mcl_maps.create_map(placer:get_pos())
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itemstack:take_item()
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if itemstack:is_empty() then
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return new_map
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else
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local inv = placer:get_inventory()
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if inv:room_for_item("main", new_map) then
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inv:add_item("main", new_map)
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else
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minetest.add_item(placer:get_pos(), new_map)
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end
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return itemstack
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end
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return itemstack
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end
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end
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