Collisions are working

dungeonbattle/interfaces.py

@@ -11,12 +11,18 @@ class Map:
     height: int
     tiles: list
 
-    def __init__(self, width: int, height: int, tiles: list,
-                 entities: list = None):
+    def __init__(self, width: int, height: int, tiles: list):
         self.width = width
         self.height = height
         self.tiles = tiles
-        self.entities = entities or []
+        self.entities = []
+
+    def add_entity(self, entity: "Entity") -> None:
+        """
+        Register a new entity in the map.
+        """
+        self.entities.append(entity)
+        entity.map = self
 
     @staticmethod
     def load(filename: str):
@@ -39,7 +45,7 @@ class Map:
         tiles = [[Tile(c)
                   for x, c in enumerate(line)] for y, line in enumerate(lines)]
 
-        return Map(width, height, tiles, [])
+        return Map(width, height, tiles)
 
     def draw_string(self) -> str:
         """
@@ -68,11 +74,19 @@ class Tile(Enum):
 class Entity:
     y: int
     x: int
+    map: Map
 
     def __init__(self):
         self.y = 0
         self.x = 0
 
+    def check_move(self, y: int, x: int, move_if_possible: bool = False)\
+            -> bool:
+        tile = self.map.tiles[y][x]
+        if tile.can_walk() and move_if_possible:
+            self.move(y, x)
+        return tile.can_walk()
+
     def move(self, y: int, x: int) -> None:
         self.y = y
         self.x = x