Question

我需要在图像周围添加矩形边框，以使角色不再走动。如果我的角色停在某个坐标而不是在图像上走动，那就太好了。

我尝试用'x'和'y'坐标创建边框，但是边框似乎在屏幕上延伸。

import pygame
from pygame.locals import *
pygame.init()

SCREEN_WIDTH = 800
SCREEN_HEIGHT = 700
screen = pygame.display.set_mode((SCREEN_WIDTH, SCREEN_HEIGHT,))
pygame.display.set_caption("Zombie Hunters")

background = pygame.image.load("background.jpg").convert()
background = pygame.transform.scale(background, (SCREEN_WIDTH,SCREEN_HEIGHT))

player = pygame.image.load("character no gun.png").convert_alpha()
player = pygame.transform.scale(player, (270, 270))

# these are the coordinates to move the player
x, y = 0, 0
MOVE_RIGHT = 1
MOVE_LEFT = 2
MOVE_UP = 3
MOVE_DOWN = 4
direction = 0
speed = 1

#House barrier
barrier_xlocation = 345
barrier_ylocation = 80
barrier_width = 190
barrier_height = 260

while True:
    for event in pygame.event.get():
        if event.type == QUIT:
            exit()

        if event.type == KEYDOWN:
            if event.key == ord('q'):
                pygame.quit()
                exit()

            if event.key == K_LEFT:
                direction = MOVE_LEFT

            if event.key == K_RIGHT:
                direction = MOVE_RIGHT

            if event.key == K_UP:
                direction = MOVE_UP

            if event.key == K_DOWN:
                direction = MOVE_DOWN

        elif event.type == KEYUP:

            if event.key == K_LEFT:
                direction = 0

            if event.key == K_RIGHT:
                direction = 0

            if event.key == K_UP:
                direction = 0

            if event.key == K_DOWN:
                direction = 0

    if(direction == MOVE_LEFT):

        x-= speed

    if(direction == MOVE_RIGHT):

        x+= speed

    if(direction == MOVE_UP):

        y-= speed

    if(direction == MOVE_DOWN):

        y += speed


    #Background
    screen.blit(background, (0, 0))

    #House border
    pygame.draw.rect(screen, (255,0,0), (barrier_xlocation,barrier_ylocation,barrier_width,barrier_height), 2)

    #Player hitbox
    pygame.draw.rect(screen, (255,0,0), (x + 117,y + 105, 50,50),2)
    screen.blit(player, (x,y))
    pygame.display.update()

我没有收到任何错误消息，但需要在房屋周围创建边框。

Answer 1

使用pygame.Rect对象和.colliderect()检查两个矩形的冲突。

存储播放器的当前位置。玩家位置改变后，检查与障碍物的碰撞。当播放器和障碍物发生碰撞时，请重置播放器的位置。

[pygame.Surface对象的大小可以通过.get_size()获得：

# store current position
px, py = x, y

# change position
if(direction == MOVE_LEFT):
    x-= speed
if(direction == MOVE_RIGHT):
    x+= speed
if(direction == MOVE_UP):
    y-= speed
if(direction == MOVE_DOWN):
    y += speed

# set player and barrier rectangle
playerRect = pygame.Rect(x, y, *player.get_size())
barrierRect = pygame.Rect(
    barrier_xlocation, barrier_ylocation, barrier_width, barrier_height)

# check for collision
if playerRect.colliderect(barrierRect):
    # reset position
    x, y = px, py

如何在Pygame中创建边框，以使角色不走过图像？

1 个答案: