Created
April 20, 2025 13:57
-
-
Save shricodev/07c82c456e246b773b69c5de73eeb930 to your computer and use it in GitHub Desktop.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| import pygame | |
| import sys | |
| import random | |
| # --- Configuration --- | |
| WIDTH, HEIGHT = 480, 640 | |
| FPS = 60 | |
| PLAYER_SPEED = 5 | |
| PLAYER_SIZE = 40 | |
| BULLET_SPEED = 7 | |
| BULLET_W, BULLET_H = 4, 10 | |
| SHOOT_COOLDOWN = 300 # ms between shots | |
| ENEMY_SPEED = 2 | |
| ENEMY_SIZE = 40 | |
| MAX_ENEMIES = 6 | |
| SPAWN_DELAY = 1000 # ms between spawns | |
| STAR_COUNT = 80 | |
| # --- Pygame setup --- | |
| pygame.init() | |
| screen = pygame.display.set_mode((WIDTH, HEIGHT)) | |
| pygame.display.set_caption("Galaga Simple") | |
| clock = pygame.time.Clock() | |
| # --- Classes --- | |
| class Star: | |
| def __init__(self): | |
| self.x = random.randrange(0, WIDTH) | |
| self.y = random.randrange(0, HEIGHT) | |
| self.speed = random.uniform(1, 3) | |
| self.size = random.randint(1, 3) | |
| def update(self): | |
| self.y += self.speed | |
| if self.y > HEIGHT: | |
| self.y = 0 | |
| self.x = random.randrange(0, WIDTH) | |
| def draw(self, surf): | |
| pygame.draw.circle(surf, (200,200,200), (int(self.x),int(self.y)), self.size) | |
| class Player: | |
| def __init__(self): | |
| self.rect = pygame.Rect( | |
| (WIDTH-PLAYER_SIZE)//2, | |
| HEIGHT-PLAYER_SIZE-10, | |
| PLAYER_SIZE, PLAYER_SIZE | |
| ) | |
| self.last_shot = 0 | |
| def move(self, dx): | |
| self.rect.x = max(0, min(WIDTH-PLAYER_SIZE, self.rect.x + dx)) | |
| def can_shoot(self): | |
| return pygame.time.get_ticks() - self.last_shot >= SHOOT_COOLDOWN | |
| def shoot(self): | |
| self.last_shot = pygame.time.get_ticks() | |
| bx = self.rect.centerx - BULLET_W//2 | |
| by = self.rect.top - BULLET_H | |
| return Bullet(bx, by, -BULLET_SPEED) | |
| def draw(self, surf): | |
| x,y,s = self.rect.x, self.rect.y, self.rect.width | |
| pts = [(x+s//2, y), (x, y+s), (x+s, y+s)] | |
| pygame.draw.polygon(surf, (0,255,0), pts) | |
| class Bullet: | |
| def __init__(self, x, y, dy): | |
| self.rect = pygame.Rect(x, y, BULLET_W, BULLET_H) | |
| self.dy = dy | |
| def update(self): | |
| self.rect.y += self.dy | |
| def off_screen(self): | |
| return self.rect.bottom < 0 or self.rect.top > HEIGHT | |
| def draw(self, surf): | |
| pygame.draw.rect(surf, (255,255,0), self.rect) | |
| class Enemy: | |
| def __init__(self): | |
| x = random.randrange(0, WIDTH-ENEMY_SIZE) | |
| self.rect = pygame.Rect(x, -ENEMY_SIZE, ENEMY_SIZE, ENEMY_SIZE) | |
| def update(self): | |
| self.rect.y += ENEMY_SPEED | |
| def off_screen(self): | |
| return self.rect.top > HEIGHT | |
| def draw(self, surf): | |
| x,y,s = self.rect.x, self.rect.y, self.rect.width | |
| pts = [(x, y), (x+s, y), (x+s//2, y+s)] | |
| pygame.draw.polygon(surf, (255,0,0), pts) | |
| # --- Main loop --- | |
| def main(): | |
| # create objects | |
| stars = [Star() for _ in range(STAR_COUNT)] | |
| player = Player() | |
| bullets = [] | |
| enemies = [] | |
| last_spawn = pygame.time.get_ticks() | |
| while True: | |
| dt = clock.tick(FPS) | |
| now = pygame.time.get_ticks() | |
| # --- Events --- | |
| for ev in pygame.event.get(): | |
| if ev.type == pygame.QUIT: | |
| pygame.quit() | |
| sys.exit() | |
| # --- Input & Player --- | |
| keys = pygame.key.get_pressed() | |
| dx = 0 | |
| if keys[pygame.K_LEFT]: | |
| dx -= PLAYER_SPEED | |
| if keys[pygame.K_RIGHT]: | |
| dx += PLAYER_SPEED | |
| player.move(dx) | |
| if keys[pygame.K_SPACE] and player.can_shoot(): | |
| bullets.append(player.shoot()) | |
| # --- Spawn Enemies --- | |
| if now - last_spawn >= SPAWN_DELAY and len(enemies) < MAX_ENEMIES: | |
| enemies.append(Enemy()) | |
| last_spawn = now | |
| # --- Update --- | |
| for s in stars: s.update() | |
| for b in bullets: b.update() | |
| for e in enemies: e.update() | |
| # --- Cleanup off-screen --- | |
| bullets = [b for b in bullets if not b.off_screen()] | |
| enemies = [e for e in enemies if not e.off_screen()] | |
| # --- Collisions (bullets vs enemies) --- | |
| new_bullets = [] | |
| for b in bullets: | |
| hit = False | |
| for e in enemies: | |
| if b.rect.colliderect(e.rect): | |
| enemies.remove(e) | |
| hit = True | |
| break | |
| if not hit: | |
| new_bullets.append(b) | |
| bullets = new_bullets | |
| # --- Draw --- | |
| screen.fill((0,0,0)) | |
| for s in stars: s.draw(screen) | |
| player.draw(screen) | |
| for b in bullets: b.draw(screen) | |
| for e in enemies: e.draw(screen) | |
| pygame.display.flip() | |
| if __name__ == "__main__": | |
| main() |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment