feat: complete the game

player.py

@@ -0,0 +1,60 @@
+import pygame
+
+from circleshape import CircleShape
+from constants import (LINE_WIDTH, PLAYER_RADIUS, PLAYER_SHOOT_COOLDOWN_SECONDS, PLAYER_SHOOT_SPEED,
+                       PLAYER_SPEED, PLAYER_TURN_SPEED, SHOT_RADIUS)
+from shot import Shot
+
+
+class Player(CircleShape):
+    def __init__(self, x, y) -> None:
+        super().__init__(x, y, PLAYER_RADIUS)
+        self.rotation = 0
+        self.cooldown = 0
+
+    def triangle(self) -> list[pygame.Vector2]:
+        forward = pygame.Vector2(0, 1).rotate(self.rotation)
+        right = pygame.Vector2(0, 1).rotate(self.rotation + 90) * self.radius / 1.5
+        a = self.position + forward * self.radius
+        b = self.position - forward * self.radius - right
+        c = self.position - forward * self.radius + right
+        return [a, b, c]
+
+    def draw(self, screen: pygame.Surface) -> None:
+        pygame.draw.polygon(screen, "white", self.triangle(), LINE_WIDTH)
+
+    def rotate(self, dt: float) -> None:
+        self.rotation += PLAYER_TURN_SPEED * dt
+
+    def update(self, dt: float) -> None:
+        self.cooldown -= dt
+        keys = pygame.key.get_pressed()
+
+        if keys[pygame.K_a]:
+            self.rotate(-dt)
+
+        if keys[pygame.K_d]:
+            self.rotate(dt)
+
+        if keys[pygame.K_s]:
+            self.move(dt)
+
+        if keys[pygame.K_w]:
+            self.move(-dt)
+
+        if keys[pygame.K_SPACE]:
+            self.shoot()
+
+    def move(self, dt: float) -> None:
+        unit_vector = pygame.Vector2(0, 1)
+        rotated_vector = unit_vector.rotate(self.rotation)
+        rotated_with_speed_vector = rotated_vector * PLAYER_SPEED * dt
+        self.position += rotated_with_speed_vector
+
+    def shoot(self):
+        if self.cooldown > 0:
+            return
+
+        s = Shot(self.position.x, self.position.y, SHOT_RADIUS)
+        s.velocity = pygame.Vector2(0, 1).rotate(self.rotation) * PLAYER_SHOOT_SPEED
+        self.cooldown = PLAYER_SHOOT_COOLDOWN_SECONDS