phantomcastle: automove by mouse click

pygame-wasm/phantomcastle/game/hero.py

@@ -3,6 +3,21 @@ from coords import Coords, Direction
 from common import DrawableGameObject, EventHandler
 
 
+def point_at(coords: Coords) -> tuple[pygame.Rect, pygame.Mask]:
+    rect = pygame.Rect(coords.x, coords.y, 1, 1)
+    mask = pygame.Mask((1, 1), fill=True)
+    return rect, mask
+
+
+def collide_with_walls(coords: Coords, walls: DrawableGameObject) -> bool:
+    rect, mask = point_at(coords)
+    return walls.check_collision(rect, mask)
+
+
+def is_valid_point_to_move(coords: Coords, walls: DrawableGameObject) -> bool:
+    return not collide_with_walls(coords, walls)
+
+
 class Hero(DrawableGameObject, EventHandler):
     """объект главного героя"""
 
@@ -23,10 +38,13 @@ class Hero(DrawableGameObject, EventHandler):
         self._speed = 1
         self.direction = Direction.RIGHT
         self.mouse_active = False
+        self.auto_move_target = None
+
         # картинка изначально влево, а надо бы начинать со взгляда вправо
         self.flip()
 
     def draw(self):
+        self.auto_move()
         self.parent.surface.blit(self.surface, self.rect)
 
     def _check_collision(self, coords):
@@ -61,6 +79,8 @@ class Hero(DrawableGameObject, EventHandler):
             self.scene.coins.collect(self)
             return
 
+        self.auto_move_target = None
+
         # уменьшение шага
         while has_collision and coords != self.coords:
             coords_new = self._reduce_step(coords)
@@ -91,6 +111,21 @@ class Hero(DrawableGameObject, EventHandler):
         self.update_direction(direction)
         self.coords += direction.as_coords() * step * self.speed // 3
 
+    def auto_move(self):
+        if self.auto_move_target is None:
+            return
+
+        rect, mask = point_at(self.auto_move_target)
+        if self.overlap(rect, mask):
+            self.auto_move_target = None
+            return
+
+        direction = Direction.from_coords(self.auto_move_target - self.coords)
+        if direction:
+            self.move(direction, step=1)
+        else:
+            self.auto_move_target = None
+
     def handle_mouse_event(self, event: pygame.event.Event):
         if event.type not in (
             pygame.MOUSEBUTTONDOWN,
@@ -101,6 +136,12 @@ class Hero(DrawableGameObject, EventHandler):
         match event.type:
             case pygame.MOUSEBUTTONDOWN:
                 self.mouse_active = self.rect.collidepoint(event.pos)
+                if not self.mouse_active and is_valid_point_to_move(
+                    Coords(*event.pos), self.scene.walls
+                ):
+                    self.auto_move_target = Coords(*event.pos)
+                else:
+                    self.auto_move_target = None
             case pygame.MOUSEBUTTONUP:
                 self.mouse_active = False
             case pygame.MOUSEMOTION if self.mouse_active: