Question

好吧，所以我试图为我的敌人阶级建立一个健康专栏，而其中只有一部分是有效的，我的意思是每次我击中敌人时，我都希望它的健康专栏从绿色变为红色，然后，麦芽酒会失去50％的生命值，但这并不是真正有效，它需要2次击中才能杀死我的敌人，但部分生命值却在起作用，但从绿色变为红色的生命值却无效。我的问题出在第二个主循环中。

https://gyazo.com/9ab3f871afb9d3bcdd0fea0a0eadec87

当我向玩家射击时，健康完全没有下降。

这是我用红色和绿色绘制的颜色。

pygame.draw.rect(window, (255,0,0), (self.hitbox[0], self.hitbox[1] - 20, 80, 10))
pygame.draw.rect(window, (0,255,0), (self.hitbox[0], self.hitbox[1] - 20, 80 - (5 * (10 - self.health)), 10))
self.hitbox = (self.x + 17, self.y + 2, 31, 57)

这是我被告知要夺走健康

if Enemy.health > -10:
    Enemy.health -= 5
else:
    del enemys[one]

my full code

Answer 1

我看不到代码部分立即出现任何错误。我怀疑，由于使用了“卫生单位”，因此无法正常工作。

更改代码以百分比表示这些单位可能会有所帮助。这样一来，无论是哪种敌人，0健康都被摧毁了，并删除了可能引起混淆的比较，例如：-8 health =“某种程度上还可以”。

我创建了一个简单的功能来绘制红色/绿色健康栏。我认为，在更长的时间内，健康状况会达到100％，因此仅在必要时绘制负面健康状况部分。

def drawHealthBar( window, position, health_percent ):
    """ Draw a health bar at the given position, showing the
        health level as a green part and a red part of 100% """
    BAR_WIDTH = 64
    BAR_HEIGHT= 8

    # Start with full health
    bar = pygame.Surface( ( BAR_WIDTH, BAR_HEIGHT ) )
    bar.fill( GREEN )

    # Work out the relative bar size
    if ( health_percent < 100 ):
        health_lost = BAR_WIDTH - round( BAR_WIDTH * health_percent / 100 )
        pygame.draw.rect( bar, RED, ( BAR_WIDTH - health_lost, 0, BAR_WIDTH, BAR_HEIGHT ) )

    # Draw the resultant bar
    window.blit( bar, position )

很明显，如果您的目标具有RPG风格的“命中点”，则百分比始终可以按以下方式传递：

health_percentage = round( current_hp / maximum_hp * 100 )

参考代码：

import pygame

# Window size
WINDOW_WIDTH    = 400
WINDOW_HEIGHT   = 400

BLUE  = (   3,   5,  54 )
RED   = ( 200,   0,   0 )
GREEN = ( 0,   200,   0 )


def drawHealthBar( window, position, health_percent ):
    """ Draw a health bar at the given position, showing the
        health level as a green part and a red part of 100% """
    BAR_WIDTH = 64
    BAR_HEIGHT= 8

    # Start with full health
    bar = pygame.Surface( ( BAR_WIDTH, BAR_HEIGHT ) )
    bar.fill( GREEN )

    # Work out the relative bar size
    if ( health_percent < 100 ):
        health_lost = BAR_WIDTH - round( BAR_WIDTH * health_percent / 100 )
        pygame.draw.rect( bar, RED, ( BAR_WIDTH - health_lost, 0, BAR_WIDTH, BAR_HEIGHT ) )

    # Draw the resultant bar
    window.blit( bar, position )




### initialisation
pygame.init()
pygame.mixer.init()
window = pygame.display.set_mode( ( WINDOW_WIDTH, WINDOW_HEIGHT ) )
pygame.display.set_caption("Health Bar")
font = pygame.font.Font( None, 16 )

### Main Loop
clock = pygame.time.Clock()
done = False
while not done:

    # Handle user-input
    for event in pygame.event.get():
        if ( event.type == pygame.QUIT ):
            done = True
        elif ( event.type == pygame.MOUSEBUTTONUP ):
            # On mouse-click
            pass
        elif ( event.type == pygame.KEYUP ):
            # on Key-released
            pass

    # Movement keys
    #keys = pygame.key.get_pressed()
    #if ( keys[pygame.K_UP] ):
    #    print("up")


    # Update the window
    window.fill( BLUE )

    x = WINDOW_WIDTH  // 2
    y = WINDOW_HEIGHT // 7 

    # Draw health bars from 100 - 0 %
    for health_remaining in range( 100, -10, -10 ):
        # The health as a number
        text = font.render( str( health_remaining ) + '%' , True, (200, 200, 200) )
        window.blit( text, ( x-50, y) )
        # The bar
        drawHealthBar( window, ( x, y ), health_remaining )
        y += 25

    pygame.display.flip()

    # Clamp FPS
    clock.tick( 3 )


pygame.quit()

敌人的健康栏不会耗尽pygame

1 个答案: