Python 游戏编程入门：使用 Pygame 实现图形绘制与动画

Python 游戏编程入门：使用 Pygame 实现图形绘制与动画 | 极客日志

import pygame
from pygame.locals import *
pygame.init()

screen = pygame.display.set_mode((600, 500))
# screen 变量现在代表一个 Surface 对象

screen.fill((0, 0, 0))  # (R, G, B) 颜色值，此处为黑色

pygame.display.update()

创建字体对象：None 表示使用默认字体，第二个参数为字号。
```
myfont = pygame.font.Font(None, 60)
```

生成图像：render 方法返回一个 Surface，包含渲染后的文字。

textimage = myfont.render("Hello Python", True, (255, 255, 255))
# 参数说明：字符串，是否抗锯齿，颜色 (RGB)

绘制到屏幕：使用 blit 方法将文字 Surface 绘制到屏幕 Surface 上。
```
screen.blit(textimage, (100, 100))
```

while True:
    for event in pygame.event.get():
        if event.type == QUIT or event.type == KEYDOWN:
            import sys
            sys.exit()
    
    # 在此处更新游戏状态和绘制画面
    pygame.display.update()

# pygame.draw.circle(screen, color, position, radius, width)
pygame.draw.circle(screen, (255, 0, 0), (300, 250), 50, 2)

# pygame.draw.rect(screen, color, rect, width)
# rect: (x, y, width, height)
pos = (100, 100, 100, 100)
pygame.draw.rect(screen, (0, 255, 0), pos, 0)

# pygame.draw.line(screen, color, start_pos, end_pos, width)
pygame.draw.line(screen, (0, 0, 255), (0, 0), (100, 100), 2)

import math
# pygame.draw.arc(screen, color, rect, start_angle, end_angle, width)
# position: (x, y, w, h) 定义外接矩形
start_angle = math.radians(0)
end_angle = math.radians(90)
pygame.draw.arc(screen, (255, 255, 0), (200, 200, 100, 100), start_angle, end_angle, 2)

import sys
import random
import pygame
from pygame.locals import *

pygame.init()
screen = pygame.display.set_mode((600, 500))
pygame.display.set_caption("Drawing Rectangles")

pos_x = 300
pos_y = 250
vel_x = 2
vel_y = 1
rand1, rand2, rand3 = random.randint(0, 255), random.randint(0, 255), random.randint(0, 255)
color = (rand1, rand2, rand3)

while True:
    for event in pygame.event.get():
        if event.type in (QUIT, KEYDOWN):
            sys.exit()

    screen.fill((0, 0, 200))
    
    pos_x += vel_x
    pos_y += vel_y
    
    # 水平边界检测
    if pos_x > 500 or pos_x < 0:
        vel_x = -vel_x
        rand1, rand2, rand3 = random.randint(0, 255), random.randint(0, 255), random.randint(0, 255)
        color = (rand1, rand2, rand3)
    
    # 垂直边界检测
    if pos_y > 400 or pos_y < 0:
        vel_y = -vel_y
        rand1, rand2, rand3 = random.randint(0, 255), random.randint(0, 255), random.randint(0, 255)
        color = (rand1, rand2, rand3)
    
    width = 0
    pos = (pos_x, pos_y, 100, 100)
    pygame.draw.rect(screen, color, pos, width)
    
    pygame.display.update()

import sys
import math
import pygame
from pygame.locals import *

pygame.init()
screen = pygame.display.set_mode((600, 500))
pygame.display.set_caption("The Pie Game")
myfont = pygame.font.Font(None, 60)

color = (200, 80, 60)
width = 4
x, y = 300, 250
radius = 200
position = (x - radius, y - radius, radius * 2, radius * 2)

piece1 = piece2 = piece3 = piece4 = False

while True:
    for event in pygame.event.get():
        if event.type == QUIT:
            sys.exit()
        elif event.type == KEYUP:
            if event.key == pygame.K_ESCAPE:
                sys.exit()
            elif event.key == pygame.K_1:
                piece1 = True
            elif event.key == pygame.K_2:
                piece2 = True
            elif event.key == pygame.K_3:
                piece3 = True
            elif event.key == pygame.K_4:
                piece4 = True

    screen.fill((0, 0, 200))
    
    # 绘制数字提示
    textimage1 = myfont.render("1", True, color)
    screen.blit(textimage1, (x + radius / 2 - 20, y - radius / 2))
    textimage2 = myfont.render("2", True, color)
    screen.blit(textimage2, (x - radius / 2, y - radius / 2))
    textimage3 = myfont.render("3", True, color)
    screen.blit(textimage3, (x - radius / 2, y + radius / 2 - 20))
    textimage4 = myfont.render("4", True, color)
    screen.blit(textimage4, (x + radius / 2 - 20, y + radius / 2 - 20))
    
    # 根据状态绘制扇形
    if piece1:
        pygame.draw.arc(screen, color, position, math.radians(0), math.radians(90), width)
        pygame.draw.line(screen, color, (x, y), (x + radius, y), width)
        pygame.draw.line(screen, color, (x, y), (x, y - radius), width)
    
    if piece2:
        pygame.draw.arc(screen, color, position, math.radians(90), math.radians(180), width)
        pygame.draw.line(screen, color, (x, y), (x, y - radius), width)
        pygame.draw.line(screen, color, (x, y), (x - radius, y), width)
    
    if piece3:
        pygame.draw.arc(screen, color, position, math.radians(180), math.radians(270), width)
        pygame.draw.line(screen, color, (x, y), (x - radius, y), width)
        pygame.draw.line(screen, color, (x, y), (x, y + radius), width)
    
    if piece4:
        pygame.draw.arc(screen, color, position, math.radians(270), math.radians(360), width)
        pygame.draw.line(screen, color, (x, y), (x, y + radius), width)
        pygame.draw.line(screen, color, (x, y), (x + radius, y), width)
      
    # 全部完成时变绿
    if piece1 and piece2 and piece3 and piece4:
        color = (0, 255, 0)
    
    pygame.display.update()

import random
import sys
import pygame
from pygame.locals import *

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

for i in range(1000):
    x1, y1 = random.randint(0, 800), random.randint(0, 600)
    x2, y2 = random.randint(0, 800), random.randint(0, 600)
    pygame.draw.line(screen, (100, 255, 200), (x1, y1), (x2, y2), 2)

while True:
    for event in pygame.event.get():
        if event.type in (QUIT, KEYDOWN):
            sys.exit()
    pygame.display.update()

Python 游戏编程入门：使用 Pygame 实现图形绘制与动画

前言

1. 环境准备

2. 屏幕设置与显示

3. 文本渲染

4. 事件循环

5. 绘图函数详解

5.1 绘制圆形

5.2 绘制矩形

5.3 绘制线条

5.4 绘制弧形

6. 示例一：移动矩形

7. 示例二：Pie 游戏

8. 挑战练习

8.1 绘制椭圆

8.2 随机绘制线条

总结

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Python 游戏编程入门：使用 Pygame 实现图形绘制与动画

前言

1. 环境准备

2. 屏幕设置与显示

3. 文本渲染

4. 事件循环

5. 绘图函数详解

5.1 绘制圆形

5.2 绘制矩形

5.3 绘制线条

5.4 绘制弧形

6. 示例一：移动矩形

7. 示例二：Pie 游戏

8. 挑战练习

8.1 绘制椭圆

8.2 随机绘制线条

总结

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更多推荐文章

相关免费在线工具