Draw a map in a string to make the render in the screen easier

dungeonbattle/interfaces.py

@@ -28,6 +28,9 @@ class Map:
                   for x, c in enumerate(line)] for y, line in enumerate(lines)]
         return Map(width, height, tiles)
 
+    def draw_string(self) -> str:
+        return "\n".join("".join(tile.char for tile in line) for line in self.tiles)
+
 
 class Tile(Enum):
     EMPTY = auto()