Update main.lua

main.lua

@@ -4,9 +4,26 @@ local utility = require "lib.utility"
 
 local window_width, window_height = love.graphics.getDimensions()
 
-local tiles
+local tiles, tiles_json, tile_image
 local current_text = ""
 
+local get_tile_usage = function(tiles_json, tile_image)
+  local image_width, image_height = tile_image:getDimensions()
+  local tile_usage = {}
+  for x = 1, image_width / tiles_json.tile_size do
+    tile_usage[x] = {}
+    for y = 1, image_height / tiles_json.tile_size do
+      tile_usage[x][y] = false
+    end
+  end
+
+  for name, tile_data in pairs(tiles_json.tiles) do
+    tile_usage[tile_data.x][tile_data.y] = true
+  end
+
+  return tile_usage
+end
+
 function love.load()
   love.keyboard.setKeyRepeat(true)
 end
@@ -35,8 +52,12 @@ end
 
 function love.filedropped(file_path)
   if file_path:sub(-5) == ".json" then
-    tiles = tilesheet(utility.load_data(file_path))
+    tiles_json = utility.load_data(file_path)
+    tiles, tile_image = tilesheet(tiles_json)
   else
-    tiles = tilesheet(file_path)
+    tiles_json = {
+      image_path = file_path,
+    }
+    tiles, tile_image = tilesheet(file_path)
   end
 end