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MRP.Geometry

This is a JavaScript object of various game and map geometry facts. Its values are updated automatically when the current map changes.

It has the following keys:

  • TILE_WIDTH_PX, TILE_HEIGHT_PX - The pixel dimensions of each individual tile (i.e., the tile size). In a typical game, this will be 48x48.
  • SCREEN_WIDTH_PX, SCREEN_HEIGHT_PX - The pixel width and height of the visible screen (i.e., the game resolution). In a typical game, this will be 816x624.
  • SCREEN_WIDTH_TILES, SCREEN_HEIGHT_TILES - The number of columns and rows of tiles visible on the screen at one time. In a typical game, this will be 17x13. Note that these are not guaranteed to be whole numbers.
  • MAP_WIDTH_TILES, MAP_HEIGHT_TILES - The map size measured in tiles.
  • MAP_WIDTH_PX, MAP_HEIGHT_PX - The map size measured in pixels.
  • MAP_WIDTH_PAGES, MAP_HEIGHT_PAGES - The map size measured in "pages", that is the whole number of times we would have to move the camera in each direction to see the entire map.

Note that until the game begins running (see GameObserver's game.start event), all of these values will be null. After game.start triggers, SCREEN_WIDTH_PX and SCREEN_HEIGHT_PX will be populated. Once a map is loaded, the rest of the values are populated.