如何在 pygame 中显示平滑的加载栏?

问题描述

我目前在 pygame 上开发一款游戏.我想创建一个带有加载栏的加载窗口，如软件 GIMP，但我真的不知道如何优化它，...根本

I currently work on a game on pygame.I want to create a loading window with a loading bar like the software GIMP but I really don't know how I can optimize that,... At all

所以这是我代码的一部分，显然，它运行得不是很好.你能帮我吗?

So this is a part of my code, obviously, it's not working very well.Can you help me?

...

screen = pygame.display.set_mode((640, 480), pygame.NOFRAME)
where = (120,360)
While in progress = true:
   If 1/a < 0.25
   screen.blit(Load0, where)
   If 1/a < 0.50
   screen.blit(Load1,where)
   #... ( it's the same for <0.75 and = 1 )
   pygame.display.update()
game()

但它使继电器坏加载栏...你能帮我让它更优化、更流畅吗?
PS:我需要加载 350 个元素

But it's make a rellay bad loading bar...Can you help me to make it really more optimized and smoother?
PS : I got 350 elements to load

推荐答案

简化事物，用 2 个矩形绘制一个条形.

Simplify things, and draw a bar by 2 rectangles.

创建一个绘制条形的函数.该函数绘制一个薄的外部矩形和填充的内部矩形.内部矩形的长度取决于进度.progress 是 [0, 1] 范围内的值.如果为 0，则不绘制内部条形.如果为 1，则内条完成:

Create a function which draws a bar. The function draws a thin outer rectangle and filled inner rectangle. The length of the inner rectangle depends on the progress. progress is a value in range [0, 1]. If it is 0, then no inner bar is draw. If it is 1, then the inner bar is complete:

def DrawBar(pos, size, borderC, barC, progress):

    pygame.draw.rect(screen, borderC, (*pos, *size), 1)
    innerPos  = (pos[0]+3, pos[1]+3)
    innerSize = ((size[0]-6) * progress, size[1]-6)
    pygame.draw.rect(screen, barC, (*innerPos, *innerSize))

定义条的位置和颜色参数:

Define the position and color parameters for the bar:

barPos      = (120, 360)
barSize     = (200, 20)
borderColor = (0, 0, 0)
barColor    = (0, 128, 0)

定义最大项目数:

max_a = 350

绘制条形图时，当前进度为a/max_a:

When you draw the bar, then the current progress is a/max_a:

DrawBar(barPos, barSize, borderColor, barColor, a/max_a)

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