Question

在此代码中：

import pygame, sys, random
from pygame.locals import *

def doRectsOverlap(rect1, rect2):
    for a, b in [(rect1, rect2), (rect2, rect1)]:
        # Check if a's corners are inside b
        if ((isPointInsideRect(a.left, a.top, b)) or
            (isPointInsideRect(a.left, a.bottom, b)) or
            (isPointInsideRect(a.right, a.top, b)) or
            (isPointInsideRect(a.right, a.bottom, b))):
            return True

    return False

def isPointInsideRect(x, y, rect):
    if (x > rect.left) and (x < rect.right) and (y > rect.top) and (y < rect.bottom):
        return True
    else:
        return False


# set up pygame
pygame.init()
mainClock = pygame.time.Clock()

# set up the window
WINDOWWIDTH = 1024
height = 768
windowSurface = pygame.display.set_mode((WINDOWWIDTH, height), 0, 32)
pygame.display.set_caption('Collision Detection')

# set up direction variables
DOWNLEFT = 1
DOWNRIGHT = 3
UPLEFT = 7
UPRIGHT = 9

MOVESPEED = 10

# set up the colors
BLACK = (0, 0, 0)
GREEN = (0, 255, 0)
WHITE = (255, 255, 255)

# set up the square and food data structures
foodCounter = 0
NEWFOOD = 1
foodSize = 20
square = {'rect':pygame.Rect(300, 100, 25, 25), 'dir':UPLEFT}
foods = []
for i in range(20):
    foods.append({'rect':pygame.Rect(random.randint(0, WINDOWWIDTH - foodSize), random.randint(0, height - foodSize), foodSize, foodSize), 'dir':UPLEFT})

# run the game loop
while True:
    # check for the QUIT event
    for event in pygame.event.get():
        if event.type == QUIT:
            pygame.quit()
            sys.exit()

    foodCounter += 1
    if foodCounter >= NEWFOOD:
        # add new food
        foodCounter = 0
        foods.append({'rect':pygame.Rect(random.randint(0, WINDOWWIDTH - foodSize), random.randint(0, height - foodSize), foodSize, foodSize), 'dir':UPLEFT})

    # draw the black background onto the surface
    windowSurface.fill(BLACK)

    # move the square data structure
    if square['dir'] == DOWNLEFT:
        square['rect'].left -= MOVESPEED
        square['rect'].top += MOVESPEED
    if square['dir'] == DOWNRIGHT:
        square['rect'].left += MOVESPEED
        square['rect'].top += MOVESPEED
    if square['dir'] == UPLEFT:
        square['rect'].left -= MOVESPEED
        square['rect'].top -= MOVESPEED
    if square['dir'] == UPRIGHT:
        square['rect'].left += MOVESPEED
        square['rect'].top -= MOVESPEED

    # check if the square has move out of the window
    if square['rect'].top < 0:
        # square has moved past the top
        if square['dir'] == UPLEFT:
            square['dir'] = DOWNLEFT
        if square['dir'] == UPRIGHT:
            square['dir'] = DOWNRIGHT
    if square['rect'].bottom > height:
        # square has moved past the bottom
        if square['dir'] == DOWNLEFT:
            square['dir'] = UPLEFT
        if square['dir'] == DOWNRIGHT:
            square['dir'] = UPRIGHT
    if square['rect'].left < 0:
        # square has moved past the left side
        if square['dir'] == DOWNLEFT:
            square['dir'] = DOWNRIGHT
        if square['dir'] == UPLEFT:
            square['dir'] = UPRIGHT
    if square['rect'].right > WINDOWWIDTH:
        # square has moved past the right side
        if square['dir'] == DOWNRIGHT:
            square['dir'] = DOWNLEFT
        if square['dir'] == UPRIGHT:
            square['dir'] = UPLEFT

    # draw the square onto the surface
    pygame.draw.rect(windowSurface, WHITE, square['rect'])

    # check if the square has intersected with any food squares.
    for food in foods[:]:
        for i in range(len(foods[:])):
            x = foods[i]
            print(x['dir'])
            if doRectsOverlap(square['rect'], x['rect']):
                if x['dir'] == 7:
                    x['rect'].left -= MOVESPEED
                    x['rect'].top -= MOVESPEED
    # draw the food
    for i in range(len(foods)):
        pygame.draw.rect(windowSurface, GREEN, foods[i]['rect'])

    # draw the window onto the windowSurface
    pygame.display.update()
    mainClock.tick(60)

屏幕周围有一个白色的正方形，食用食物（绿色方块不动），这使它变得更大。现在已经解决了，如何修改它，以便当白色方块接触绿色方块时，绿色方块开始移动（向右）然后从屏幕上移开？（白色方块后来仍然增长）

更新：在我编辑了将['rect']添加到foods[i]的第5行到最后一行后，我的屏幕正在运行。虽然现在它只是扫雪机。有没有办法让食物从保镖上反射出去，食物会在保镖的原始方向上进行，而保镖则反其道而行？

P.S。没有课程。

感谢帮助！谢谢。

Pygame：Rect参数无效

0 个答案: