如何在 pygame 中给每个圆圈随机颜色?

How do give every circle a random color in pygame?

在这个程序中,我想要一个更大的可移动圆圈和许多五颜六色的小圆圈。但是,当我 运行 程序时,所有较小的圆圈都是相同的颜色,我无法弄清楚如何随机给它们每个不同的颜色。我该如何解决这个问题?

import pygame as pg
import random as rd

pg.init()
screen = pg.display.set_mode((800, 600))

p_1_x = 200
p_1_y = 200
p_1_change_x = 0

def p_1(x, y):
    player_1 = pg.draw.circle(screen, (2, 2, 0), (x, y), 15)


locations = []
small_color = []

for i in range(50):
    red = rd.randint(0, 220)
    blue = rd.randint(0, 220)
    green = rd.randint(0, 220)
    x = rd.randint(100, 700)
    y = rd.randint(100, 500)
    locations.append((x, y))
    small_color.append((red, blue, green))


while True:
    screen.fill((255, 255, 255))
    for event in pg.event.get():
        if event.type == pg.QUIT:
            pg.quit()
        if event.type == pg.KEYDOWN:
            if event.key == pg.K_RIGHT:
                p_1_change_x = 1
            if event.key == pg.K_LEFT:
                p_1_change_x = -1

        if event.type == pg.KEYUP:
            if event.key == pg.K_RIGHT or pg.K_LEFT:
                p_1_change_x = 0

    p_1_x += p_1_change_x

    p_1(p_1_x, p_1_y)
    for locate in locations:
        pg.draw.circle(screen, (small_color[i]), locate, 5)

    pg.display.update()

在主循环中,您使用的是 i,它永远不会改变。在遍历位置集合时使用 enumerate 到 return 索引。

试试这个代码:

for i,locate in enumerate(locations):
    pg.draw.circle(screen, (small_color[i]), locate, 5)

确保在第一行导入 random 库:

import random as rd

这是一个生成随机颜色的简单函数:

def random_color():
    r = rd.randint(0, 255)
    g = rd.randint(0, 255)
    b = rd.randint(0, 255)
    return (r, g, b)

因此您可以在需要时调用它:

    color = random_color()
    draw.circle(screen, color, (x, y), SIZE)   

Github 回购

我在 GitHub 中做了一个回购并做了一些修改, 圆点是彩色的,新圆点的颜色是随机的,球每吃一个圆点就会变大。

https://github.com/peymanmajidi/Ball-And-Dots-Game__Pygame