feat: complete the game

shot.py

@@ -0,0 +1,14 @@
+import pygame
+from circleshape import CircleShape
+from constants import LINE_WIDTH
+
+
+class Shot(CircleShape):
+    def __init__(self, x: float, y: float, radius: float) -> None:
+        super().__init__(x, y, radius)
+
+    def draw(self, screen: pygame.Surface) -> None:
+        pygame.draw.circle(screen, "white", self.position, self.radius, LINE_WIDTH)
+
+    def update(self, dt: float) -> None:
+        self.position += self.velocity * dt