Today we are going to take a look at collisions… with pygame. Let’s see how sprites interact with each other.
import pygame
class Screen:
def check_collision():
if player.rect.colliderect(player2):
print("\nCollision detected")
player2.change_color(Color.blue)
if not player.rect.colliderect(player2):
print("\n No Collision detected")
player2.change_color(Color.red)
else:
print("-----------------")
def mainloop(loop):
# when press left, right...
if player.direction == 0: # left
player.x -= speed
elif player.direction == 2: # right
player.x += speed
elif player.direction == 1: # up
player.y -= speed
elif player.direction == 3: # down
player.y += speed
# get user event (press key...)
for event in pygame.event.get():
if event.type == pygame.QUIT:
loop = 0
elif event.type == pygame.KEYDOWN:
# when you press left, right...
'''
u 1
l 0 2 r
d 3
'''
if event.key == pygame.K_LEFT: # left = 0, right = 2, up = 1, down =3
player.direction = 0
elif event.key == pygame.K_RIGHT:
player.direction = 2
elif event.key == pygame.K_UP:
player.direction = 1
elif event.key == pygame.K_DOWN:
player.direction = 3
# when you release the key player stops
elif event.type == pygame.KEYUP:
print("\nYou stopped at")
print(f"{player.rect=}")
print(f"{player2.rect=}")
player.direction = -1
Screen.check_collision()
pygame.display.update()
clock.tick(60)
return loop
class Color:
yellow = (0, 255, 0)
red = (255, 0, 0)
blue = (0, 0, 255)
class Sprite:
def __init__(self, x, y, color):
self.x = x
self.y = y
self.direction = -1
self.image = pygame.Surface((50, 50))
self.image.fill(color)
self.rect = self.image.get_rect()
self.rect[0] = x
self.rect[1] = y
print(self.rect)
def change_color(self, color):
self.image.fill(color)
def draw(self):
self.rect[0] = self.x
self.rect[1] = self.y
screen.blit(self.image, (self.x,self.y))
pygame.init()
screen = pygame.display.set_mode((600, 400))
clock = pygame.time.Clock()
speed = 5
# =========== MAIN LOOP ==========
player = Sprite(0,0, Color.yellow)
player2 = Sprite(100,100, Color.red)
loop = 1
while loop:
loop = Screen.mainloop(loop)
screen.fill(0)
player.draw()
player2.draw()
pygame.quit()
Github:
https://github.com/formazione/pygame_live.git
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