[Pygame] Collision Detection 파이게임 충돌 감지

캐릭터의 충돌을 감지하고 표시해 보자.

 

import pygame
 
pygame.init()
pygame.display.set_caption("Super fun game development")
screen = pygame.display.set_mode((640, 480))
clock = pygame.time.Clock()
running = True
# pygame 세팅
 
player = pygame.image.load("player.png").convert()
player.set_colorkey(player.get_at((0, 0)))
player_size = (player.get_width()*1.5, player.get_height()*1.5)
player = pygame.transform.scale(player, player_size)
player_pos = player.get_rect()
player_pos.center = (screen.get_width()/2, screen.get_height()/2)
player_speed = 4
player_direction = -1
# player 세팅
 
enemy = pygame.image.load("enemy.png").convert()
enemy.set_colorkey(enemy.get_at((0, 0)))
enemy_size = (enemy.get_width()*1.5, enemy.get_height()*1.5)
enemy = pygame.transform.scale(enemy, enemy_size)
enemy_pos = enemy.get_rect(center=(500, screen.get_height()/2))
# enemy 세팅
 
while running:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False
        elif event.type == pygame.KEYDOWN and event.key == pygame.K_ESCAPE:
            running = False
 
    keys = pygame.key.get_pressed()
    if keys[pygame.K_LEFT]:
        if player_direction > 0:
            player = pygame.transform.flip(player, True, False)
            player_direction = -1            
        player_pos.move_ip(-player_speed, 0)
    if keys[pygame.K_RIGHT]:
        if player_direction < 0:
            player = pygame.transform.flip(player, True, False)
            player_direction = 1
        player_pos.move_ip(player_speed, 0)
 
    hitbox = player.get_rect(center=player_pos.center)
    hitbox = hitbox.inflate(-10, -10)
    # 분명한 충돌 판정을 위해 player hitbox의 범위를 줄여준다.
 
    clip = None
    if hitbox.colliderect(enemy.get_rect(center=enemy_pos.center)):
        print("collide")
        clip = hitbox.clip(enemy.get_rect(center=enemy_pos.center))
        print(clip)
    # player와 enemy가 충돌하면 "collide" 메세지를 출력하고 충돌 영역은
    # clip에 저장한다.
 
    screen.fill("black")
    screen.blit(player, player_pos)
    screen.blit(enemy, enemy_pos)
    if clip is not None:
        pygame.draw.rect(screen, "blue", clip)
    # player와 enemy가 충돌한 영역이 clip에 저장되었다면 파란 사각형으로
    # 표시힌다.
 
    pygame.display.flip()
    clock.tick(60)
 
pygame.quit()

 

 

player.png

 

enemy.png

 

충돌 영역이 파란 사각형으로 표시된다.

 

충돌 영역 좌표가 표시된다.