fix map in itemframes

Fix the map in iteframes problem in newly created worlds but might not work in older ones+ add tga dependancy

mods/ITEMS/mcl_maps/init.lua

@@ -57,7 +57,8 @@ function mcl_maps.create_map(pos)
 		local map_y_start = 64 * dx
 		local map_y_limit = 127 * dx
 
-		local pixels = ""
+		--local pixels = ""
+        local pixels = {}
 		local last_heightmap
 		for x = 1, 128 do
 			local map_x = x + offset
@@ -127,48 +128,51 @@ function mcl_maps.create_map(pos)
 				height = map_y - map_z
 
 				heightmap[z] = height or minp.y
-				
-				if not color then color = {0, 0, 0} end
-				pixels = pixels .. minetest.colorspec_to_bytes({r = color[1], g = color[2], b = color[3]})
+				pixels[z] = pixels[z] or {}
+				pixels[z][x] = color or {0, 0, 0}
+				--if not color then color = {0, 0, 0} end
+				--pixels = pixels .. minetest.colorspec_to_bytes({r = color[1], g = color[2], b = color[3]})
 			end
 			last_heightmap = heightmap
 		end
 
-		local png = minetest.encode_png(128, 128, pixels)
-		local f = io.open(map_textures_path .. "mcl_maps_map_texture_" .. id .. ".png", "wb")
-		if not f then return end
-		f:write(png)
-		f:close()
+		--local png = minetest.encode_png(128, 128, pixels)
+		--local f = io.open(map_textures_path .. "mcl_maps_map_texture_" .. id .. ".png", "wb")
+		--if not f then return end
+		--f:write(png)
+		--f:close()
+        tga_encoder.image(pixels):save(map_textures_path .. "mcl_maps_map_texture_" .. id .. ".tga")		
         creating_maps[id] = nil
 	end)
 	return itemstack
 end
 
-local loading_maps = {}
+--local loading_maps = {}
 
 function mcl_maps.load_map(id, callback)
-	if id == "" or creating_maps[id] or loading_maps[id] then
+	if id == "" or creating_maps[id] then--or loading_maps[id] then
 		return
 	end
 
-	local texture = "mcl_maps_map_texture_" .. id .. ".png"
+	--local texture = "mcl_maps_map_texture_" .. id .. ".png"
+    local texture = "mcl_maps_map_texture_" .. id .. ".tga"
 
 	if not loaded_maps[id] then
-		loading_maps[id] = true
+		--loading_maps[id] = true
         if not minetest.features.dynamic_add_media_table then
             -- minetest.dynamic_add_media() blocks in
 			-- Minetest 5.3 and 5.4 until media loads
 			dynamic_add_media(map_textures_path .. texture, function(player_name) end)
             loaded_maps[id] = true
 			if callback then callback(texture) end
-            loading_maps[id] = nil
+            --loading_maps[id] = nil
         else
         	-- minetest.dynamic_add_media() never blocks
 			-- in Minetest 5.5, callback runs after load
 	    	dynamic_add_media(map_textures_path .. texture, function(player_name)
 			    loaded_maps[id] = true
                 if callback then callback(texture) end
-			    loading_maps[id] = nil
+			    --loading_maps[id] = nil
 		    end)
         end
 	end