问题描述
这是我的代码:
import pygame
windowX = 1020
windowY = 500
speedX = 2
speedY = 2
Xpos = int(510)
Ypos = int(250)
playerWidth = 100
playerHeight = 95
keepAlive = True
goingDown = False
pygame.init()
window = pygame.display.set_mode((windowX,windowY))
player = pygame.image.load("player.PNG")
player = pygame.transform.scale(player,(playerWidth,playerHeight))
class enemy:
X: int
Y: int
def __init__(self,x: int,y: int,sprite: str,sizeX: int,sizeY: int):
self.X = x
self.Y = y
self.enemySprite = pygame.image.load(sprite)
self.enemySprite = pygame.transform.scale(self.enemySprite,(sizeX,sizeY))
window.blit(self.enemySprite,(x,y))
def hit():
print('hit')
while(keepAlive):
for event in pygame.event.get():
if(event.type == pygame.QUIT):
pygame.quit()
keys = pygame.key.get_pressed()
if(not Xpos >= windowX - 70):
if(keys[pygame.K_RIGHT]):
Xpos += speedX
if(not -Xpos >= -windowX + 1050):
if(keys[pygame.K_LEFT]):
Xpos -= speedX
else:
print(-windowX + 510)
print(-Xpos)
if(-Ypos <= windowY - 450 and not goingDown):
Ypos -= speedY
else:
goingDown = True
Ypos += speedY
if(-Ypos == -windowY + 100):
goingDown = False
window.fill((0,0))
window.blit(player,(Xpos,Ypos))
enemy1 = enemy(520,int(0),"player.PNG",100,100)
pygame.display.update()
pygame.display.flip()
我想计算玩家精灵和敌人1之间的距离,如果你能帮我我会很高兴,非常感谢!我已经尝试这样做很长时间了,这对我来说真的很重要,如果您可以指定:我需要哪些库?我使用什么函数,有没有文档,所以我想再次计算精灵之间的距离,谢谢!
解决方法
我建议使用pygame.math.Vector2.distance_to
:
dist = pygame.math.Vector2(Xpos,Ypos).distance_to((enemy1.x,enemy1.y))
计算给定向量的 Euclidean distance。
如果不想使用pygame.math
模块,可以用Pythagoras计算欧几里得距离:
import math
dx = enemy1.x - Xpos
dy = enemy1.y - Ypos
dist = math.sqrt(dx*dx + dy*dy)
dist = math.hypot(enemy1.x - Xpos,enemy1.y - Ypos)
类名通常应使用 CapWords 约定。见Naming Conventions。
此外,我建议在应用程序循环之前实例化敌人对象,但在 draw
类中添加一个 Enemy
方法:
class Enemy:
X: int
Y: int
def __init__(self,x: int,y: int,sprite: str,sizeX: int,sizeY: int):
self.X = x
self.Y = y
self.enemySprite = pygame.image.load(sprite)
self.enemySprite = pygame.transform.scale(self.enemySprite,(sizeX,sizeY))
def draw(self,target_surf):
target_surf.blit(self.enemySprite,(self.x,self.y))
enemy1 = Enemy(520,int(0),"player.PNG",100,100)
while keepAlive:
# [...]
dist = math.hypot(enemy1.x - Xpos,enemy1.y - Ypos)
print(dist)
window.fill((0,0))
window.blit(player,(Xpos,Ypos))
enemy1.draw(window)
pygame.display.update()