如何使視覺健康儀使用Pygame跟隨玩家？

Question

問題我正在查找組合玩家位置並添加到其中的方法我想弄清楚這一點，以幫助向正在學習pygame的孩子解釋，並且繼續提出超出我知識範圍的問題。

我的目標：是有一個視覺生命表是以下或貼在播放器/敵人爲了跟蹤碰撞檢測的更它上面漂浮視覺方式。

我陷入對如何給玩家IMG的PlayerPos與精靈米

我方面的問題是瞭解的事結合起來的理念爲healthbarpos粘上它目前的播放器位置

playerpos +玩家x位置，玩家y位置+ 10個像素

#How I keep the player position 
playerpos=[50,50] 


#How I keep health bar above the player position 
healthbarpos=[ 


#the player image 
PLAYER = pygame.image.load('player.png') 
#the position of the player [x,y] 
playerPos = [0,0] 

當我移動玩家在棋盤上把它添加到播放位置

#if a key is pressed 
    elif event.type == KEYDOWN: 
     #if the right arrow is pressed 
     if event.key == K_RIGHT and playerPos[0] < MAPWIDTH - 1: 
      #change the player's x position 
      playerPos[0] += 1 
     if event.key == K_LEFT and playerPos[0] > 0: 
      #change the player's x position 
      playerPos[0] -= 1 
     if event.key == K_UP and playerPos[1] > 0: 
      #change the player's x position 
      playerPos[1] -= 1 
     if event.key == K_DOWN and playerPos[1] < MAPHEIGHT -1: 
      #change the player's x position 
      playerPos[1] += 1 

我的新手假設我需要存儲玩家當前X位置加0，因爲它開始在相同的X位置，也是玩家當前y位置+ 10個像素

我明白

pygame.draw.rect(window, color, (x,y,width,height), thickness) 

因此我假定

pygame.draw.rect(window, color, (player x position ,player y position + 10 pixels,width,height), thickness) 

我相信理解理論上下面的生命儀表部做夠

#Initialize the game 
pygame.init() 
width, height = 640, 480 
screen=pygame.display.set_mode((width, height)) 

#How I keep the player position 
playerpos=[50,50] 


#How I keep health bar above the player position 
healthbarpos=[ 

playerpos + player x position ,player y position + 10 pixels 


----------------- 

#full bar 34 pixel minus 3 on each side so 28 
healthvalue=28 

#loading images for healthbar 
healthbar = pygame.image.load("healthbar.png") 
health = pygame.image.load("health.png") 

#rest inside the while true loop 

#Drawing health bar 
    screen.blit(healthbar, (5,5)) 
    for health1 in range(healthvalue): 
     screen.blit(health, (health1+8,8)) 
    #update the screen 
    pygame.display.flip() 

#Moving player in the event loop 

     #if a key is pressed 
     elif event.type == KEYDOWN: 
      #if the right arrow is pressed 
      if event.key == K_RIGHT and playerPos[0] < MAPWIDTH - 1: 
       #change the player's x position 
       playerPos[0] += 1 
      if event.key == K_LEFT and playerPos[0] > 0: 
       #change the player's x position 
       playerPos[0] -= 1 
      if event.key == K_UP and playerPos[1] > 0: 
       #change the player's x position 
       playerPos[1] -= 1 
      if event.key == K_DOWN and playerPos[1] < MAPHEIGHT -1: 
       #change the player's x position 
       playerPos[1] += 1 

Answer 1

我的建議是不要使用單獨的座標健康酒吧和球員。有兩組座標是不必要的複雜。

當您繪製播放器和健康欄時，使用從播放器派生的座標並應用偏移量。

screen.blit(healthbar, (playerPos[0], playerPos[1] - heightOfHealthBar)) 

或類似的繪圖功能。