Merge branch 'master' into rf/caster

Author: Cleptomania

pytiled_parser/objects.py

@@ -0,0 +1,6 @@
+def is_float(string: str):
+    try:
+        float(string)
+        return True
+    except (ValueError, TypeError):
+        return False

pytiled_parser/typing_helpers.py

@@ -0,0 +1,69 @@
+"""Helper unitilies for pytiled_parser."""
+
+from typing import List, Optional
+
+import pytiled_parser.objects as objects
+
+
+def parse_color(color: str) -> objects.Color:
+    """Convert Tiled color format into Arcade's.
+
+    Args:
+        color (str): Tiled formatted color string.
+
+    Returns:
+        :Color: Color object in the format that Arcade understands.
+    """
+    # the actual part we care about is always an even number
+    if len(color) % 2:
+        # strip initial '#' character
+        color = color[1:]
+
+    if len(color) == 6:
+        # full opacity if no alpha specified
+        alpha = 0xFF
+        red = int(color[0:2], 16)
+        green = int(color[2:4], 16)
+        blue = int(color[4:6], 16)
+    else:
+        alpha = int(color[0:2], 16)
+        red = int(color[2:4], 16)
+        green = int(color[4:6], 16)
+        blue = int(color[6:8], 16)
+
+    return objects.Color(red, green, blue, alpha)
+
+
+def _get_tile_set_key(gid: int, tile_set_keys: List[int]) -> int:
+    """Gets tile set key given a tile GID.
+
+    Args:
+        gid (int): Global ID of the tile.
+        tile_set_keys (List[int]): List of tile set keys.
+
+    Returns:
+        int: The key of the tile set that contains the tile for the GID.
+    """
+
+    # credit to __m4ch1n3__ on ##learnpython for this idea
+    return max([key for key in tile_set_keys if key <= gid])
+
+
+def get_tile_by_gid(gid: int, tile_sets: objects.TileSetDict) -> Optional[objects.Tile]:
+    """Gets correct Tile for a given global ID.
+
+    Args:
+        tile_sets (objects.TileSetDict): TileSetDict from TileMap.
+        gid (int): Global tile ID of the tile to be returned.
+
+    Returns:
+        objects.Tile: The Tile object reffered to by the global tile ID.
+        None: If there is no objects.Tile object in the tile_set.tiles dict for the associated gid.
+    """
+    tile_set_key = _get_tile_set_key(gid, list(tile_sets.keys()))
+    tile_set = tile_sets[tile_set_key]
+
+    if tile_set.tiles is not None:
+        return tile_set.tiles.get(gid - tile_set_key)
+
+    return None