我对编码和Pygame特别陌生,现在我正在从头开始编写蛇游戏的翻拍,但我不知道如何精确地绘制跟随蛇头的蛇体。这是我到目前为止的内容:
主体机械师:
try:
for pos in range(0, length):
x = startX
y = startY
if moveX == 1:
x = startX-pos
elif moveX == -1:
x = startX+pos
elif moveY == 1:
y = startY-pos
elif moveY == -1:
y = startY+pos
snake1 = pygame.draw.rect(screen, yellow, [(margin + snakeposX*x, margin + snakeposY*y), (width, height)])
snake = pygame.draw.rect(screen, white, [(margin + snakeposX*startX, margin + snakeposY*startY), (width, height)])
except IndexError:
pass
在
使用的变量:
screen = pygame.display.set_mode(size)
width = 20
height = 20
margin = 5
snakeposX = (width + margin)
snakeposY = (height + margin)
white = (255, 255, 255)
yellow = (255, 255, 0)
startX = 6
startY = 6
moveX = 1
moveY = 0
length = 1
startX += moveX
startY += moveY
答案 0 :(得分:1)
您需要列出蛇的位置。蛇的每个元素的位置都是列表中的元素:
snakepos = [[startX, startY]]
如果必须种植蛇,则必须复制蛇的最后一部分并附加到蛇的尾巴上:
snakepos.append(snakepos[-1][:])
为使您的蛇移动,蛇的每个部分在零件列表中获得其前任的位置。蛇的头得到一个新的位置。 以相反的顺序遍历蛇并复制位置。
for i in range(len(snakepos)-1, 0, -1):
snakepos[i] = snakepos[i-1][:]
snakepos[0][0] += moveX
snakepos[0][1] += moveY
或者,您可以在列表的开头添加一个新元素,然后删除列表的最后一个元素:
snakepos.insert(0, [snakepos[0]+moveX, snakepos[1]+moveY])
del snakepos[-1]
我建议分开更新位置和图形:
for i in range(1, len(snakepos)):
pygame.draw.rect(screen, yellow, [snakepos[i], (width, height)])
snake = pygame.draw.rect(screen, white, [snakepos[0], (width, height)])