render的用法 python pygame中render的用法

1.初次见面

# -*- coding: utf-8 -*-
import pygame

size = width,height = 600,400
speed = [-2,1]
bg = (255,255,255) # RGB

clock = pygame.time.Clock()

# 创建制定大小的窗口 surface
screen = pygame.display.set_mode(size)
# 设置窗口标题
pygame.display.set_caption("初次见面，请大家多多关照！")

# 加载图片
turtle = pygame.image.load("turtle.png")
# 获得图像的位置矩形
position = turtle.get_rect()

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

    # 移动目标
    position = position.move(speed)

    if position.left < 0 or position.right > width:
        # 翻转图像
        turtle = pygame.transform.flip(turtle,True,False)
        # 反方向移动
        speed[0] = -speed[0]

    if  < 0 or position.bottom > height:
        speed[1] = -speed[1]

    # 填充背景
    screen.fill(bg)
    # 更新图像
    screen.blit(turtle,position)
    # 更新界面
    pygame.display.flip()
    # 延迟10毫秒
    # pygame.time.delay(10)
    clock.tick(150)

2.pygame记录事件到txt文档

# -*- coding: utf-8 -*-
import pygame

size = width,height = 600,400
# 创建制定大小的窗口 surface
screen = pygame.display.set_mode(size)
# 设置窗口标题
pygame.display.set_caption("初次见面，请大家多多关照！")

f = open("record.txt",'w')

while True:
    for event in pygame.event.get():
        f.write(str(event) + 'n')

        if event.type == pygame.QUIT:
            f.close()
            sys.exit()

3.pygame记录事件并显示到屏幕

# -*- coding: utf-8 -*-
import pygame

# 初始化pygame
pygame.init()

size = width,height = 600,400
# 创建制定大小的窗口 surface
screen = pygame.display.set_mode(size)
# 设置窗口标题
pygame.display.set_caption("FishC Demo")
bg = (0,0,0)

font = pygame.font.Font(None,20)
line_height = font.get_linesize()
position = 0

screen.fill(bg)

while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            f.close()
            sys.exit()

        screen.blit(font.render(str(event),True,(0,255,0)),(0,position))
        position += line_height

        if position > height:
            position = 0
            screen.fill(bg)

    pygame.display.flip()

4.加键盘控制

# -*- coding: utf-8 -*-
import pygame
import sys
from pygame.locals import *

size = width,height = 600,400
speed = [-2,1]
bg = (255,255,255) # RGB

clock = pygame.time.Clock()

# 创建制定大小的窗口 surface
screen = pygame.display.set_mode(size)
# 设置窗口标题
pygame.display.set_caption("初次见面，请大家多多关照！")

# 加载图片
turtle = pygame.image.load("turtle.png")
# 获得图像的位置矩形
position = turtle.get_rect()

l_head = turtle
r_head = pygame.transform.flip(turtle,True,False)

while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            sys.exit()
        if event.type == pygame.KEYDOWN:
            if event.key == K_LEFT:
                turtle = l_head
                speed = [-1,0]
            if event.key == K_RIGHT:
                turtle = r_head
                speed = [1,0]
            if event.key == K_UP:
                speed = [0,-1]
            if event.key == K_DOWN:
                speed = [0,1]

    # 移动目标
    position = position.move(speed)

    if position.left < 0 or position.right > width:
        # 翻转图像
        turtle = pygame.transform.flip(turtle,True,False)
        # 反方向移动
        speed[0] = -speed[0]

    if  < 0 or position.bottom > height:
        speed[1] = -speed[1]

    # 填充背景
    screen.fill(bg)
    # 更新图像
    screen.blit(turtle,position)
    # 更新界面
    pygame.display.flip()
    # 延迟10毫秒
    # pygame.time.delay(10)
    clock.tick(150)

5.F11全屏

# -*- coding: utf-8 -*-
import pygame
import sys
from pygame.locals import *

size = width,height = 600,400
speed = [-2,1]
bg = (255,255,255) # RGB

fullscreen = False
clock = pygame.time.Clock()

# 创建制定大小的窗口 surface
screen = pygame.display.set_mode(size)
# 设置窗口标题
pygame.display.set_caption("初次见面，请大家多多关照！")

# 加载图片
turtle = pygame.image.load("turtle.png")
# 获得图像的位置矩形
position = turtle.get_rect()

l_head = turtle
r_head = pygame.transform.flip(turtle,True,False)

while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            sys.exit()
        if event.type == pygame.KEYDOWN:
            if event.key == K_LEFT:
                turtle = l_head
                speed = [-1,0]
            if event.key == K_RIGHT:
                turtle = r_head
                speed = [1,0]
            if event.key == K_UP:
                speed = [0,-1]
            if event.key == K_DOWN:
                speed = [0,1]
            # 全屏（F11）
            if event.key == K_F11:
                fullscreen = not fullscreen
                if fullscreen:
                    screen = pygame.display.set_mode((1024,600),FULLSCREEN | HWSURFACE)
                else:
                    screen = pygame.display.set_mode(size)

    # 移动目标
    position = position.move(speed)

    if position.left < 0 or position.right > width:
        # 翻转图像
        turtle = pygame.transform.flip(turtle,True,False)
        # 反方向移动
        speed[0] = -speed[0]

    if  < 0 or position.bottom > height:
        speed[1] = -speed[1]

    # 填充背景
    screen.fill(bg)
    # 更新图像
    screen.blit(turtle,position)
    # 更新界面
    pygame.display.flip()
    # 延迟10毫秒
    # pygame.time.delay(10)
    clock.tick(150)

6.窗口尺寸可调整

# -*- coding: utf-8 -*-
import pygame
import sys
from pygame.locals import *

size = width,height = 600,400
speed = [-2,1]
bg = (255,255,255) # RGB

fullscreen = False
clock = pygame.time.Clock()

# 创建制定大小的窗口 surface
screen = pygame.display.set_mode(size,)
# 设置窗口标题
pygame.display.set_caption("初次见面，请大家多多关照！")

# 加载图片
turtle = pygame.image.load("turtle.png")
# 获得图像的位置矩形
position = turtle.get_rect()

l_head = turtle
r_head = pygame.transform.flip(turtle,True,False)

while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            sys.exit()
        if event.type == pygame.KEYDOWN:
            if event.key == K_LEFT:
                turtle = l_head
                speed = [-1,0]
            if event.key == K_RIGHT:
                turtle = r_head
                speed = [1,0]
            if event.key == K_UP:
                speed = [0,-1]
            if event.key == K_DOWN:
                speed = [0,1]
            # 全屏（F11）
            if event.key == K_F11:
                fullscreen = not fullscreen
                if fullscreen:
                    screen = pygame.display.set_mode((1024,600),FULLSCREEN | HWSURFACE)
                else:
                    screen = pygame.display.set_mode(size)
        # 用户调整窗口尺寸
        if event.type == VIDEORESIZE:
            size = event.size
            width,height = size
            print(size)
            screen = pygame.display.set_mode(size,RESIZABLE)

    # 移动目标
    position = position.move(speed)

    if position.left < 0 or position.right > width:
        # 翻转图像
        turtle = pygame.transform.flip(turtle,True,False)
        # 反方向移动
        speed[0] = -speed[0]

    if  < 0 or position.bottom > height:
        speed[1] = -speed[1]

    # 填充背景
    screen.fill(bg)
    # 更新图像
    screen.blit(turtle,position)
    # 更新界面
    pygame.display.flip()
    # 延迟10毫秒
    # pygame.time.delay(10)
    clock.tick(150)

7.放大缩小乌龟图像

# -*- coding: utf-8 -*-
import pygame
import sys
from pygame.locals import *

size = width,height = 600,400
speed = [-2,1]
bg = (255,255,255) # RGB

fullscreen = False
clock = pygame.time.Clock()

# 创建制定大小的窗口 surface
screen = pygame.display.set_mode(size,)
# 设置窗口标题
pygame.display.set_caption("初次见面，请大家多多关照！")

# 设置放大缩小的比率
ratio = 1.0

oturtle = pygame.image.load("turtle.png")
turtle = oturtle
oturtle_rect = oturtle.get_rect()
position = turtle_rect = oturtle_rect

l_head = turtle
r_head = pygame.transform.flip(turtle,True,False)

while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            sys.exit()
        if event.type == pygame.KEYDOWN:
            if event.key == K_LEFT:
                turtle = l_head
                speed = [-1,0]
            if event.key == K_RIGHT:
                turtle = r_head
                speed = [1,0]
            if event.key == K_UP:
                speed = [0,-1]
            if event.key == K_DOWN:
                speed = [0,1]
            # 全屏（F11）
            if event.key == K_F11:
                fullscreen = not fullscreen
                if fullscreen:
                    screen = pygame.display.set_mode((1024,600),FULLSCREEN | HWSURFACE)
                else:
                    screen = pygame.display.set_mode(size)

            # 放大、缩小小乌龟（=、-），空格键恢复原始尺寸
            if event.key == K_EQUALS or event.key == K_MINUS or event.key == K_SPACE:
                # 最大只能放大一倍，缩小50%
                if event.key == K_EQUALS and ratio < 2:
                    ratio += 0.1
                if event.key == K_MINUS and ratio > 0.5:
                    ratio -= 0.1
                if event.key == K_SPACE:
                    ratio = 1.0

                turtle = pygame.transform.smoothscale(oturtle,
                                             (int(oturtle_rect.width * ratio),
                                             int(oturtle_rect.height * ratio)))
                               
            
        # 用户调整窗口尺寸
        if event.type == VIDEORESIZE:
            size = event.size
            width,height = size
            print(size)
            screen = pygame.display.set_mode(size,RESIZABLE)

    # 移动目标
    position = position.move(speed)

    if position.left < 0 or position.right > width:
        # 翻转图像
        turtle = pygame.transform.flip(turtle,True,False)
        # 反方向移动
        speed[0] = -speed[0]

    if  < 0 or position.bottom > height:
        speed[1] = -speed[1]

    # 填充背景
    screen.fill(bg)
    # 更新图像
    screen.blit(turtle,position)
    # 更新界面
    pygame.display.flip()
    # 延迟10毫秒
    # pygame.time.delay(10)
    clock.tick(150)

8.小乌龟跑圈

# -*- coding: utf-8 -*-
import pygame
import sys
from pygame.locals import *

size = width,height = 600,400
bg = (255,255,255) # RGB

fullscreen = False
clock = pygame.time.Clock()

# 创建制定大小的窗口 surface
screen = pygame.display.set_mode(size,)
# 设置窗口标题
pygame.display.set_caption("初次见面，请大家多多关照！")


turtle = pygame.image.load("turtle.png")
turtle_rect = turtle.get_rect()
position = turtle_rect

speed = [-5,0]
turtle_right = pygame.transform.rotate(turtle,90)
turtle_top = pygame.transform.rotate(turtle,180)
turtle_left = pygame.transform.rotate(turtle,270)
turtle_bottom = turtle

l_head = turtle
r_head = pygame.transform.flip(turtle,True,False)

while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            sys.exit()
        if event.type == pygame.KEYDOWN:
            # 全屏（F11）
            if event.key == K_F11:
                fullscreen = not fullscreen
                if fullscreen:
                    screen = pygame.display.set_mode((1024,600),FULLSCREEN | HWSURFACE)
                else:
                    screen = pygame.display.set_mode(size)

            
    # 移动目标
    position = position.move(speed)

    if position.right > width:
        turtle = turtle_right
        position = turtle_rect = turtle.get_rect()
        position.left = width - turtle_rect.width
        speed = [0,5]

    if position.bottom > height:
        turtle = turtle_bottom
        position = turtle_rect = turtle.get_rect()
        position.left = width - turtle_rect.width
         = height - turtle_rect.height
        speed = [-5,0]

    if position.left < 0:
        turtle = turtle_left
        position = turtle_rect = turtle.get_rect()
         = height - turtle_rect.height
        speed = [0,-5]

    if  < 0:
        turtle = turtle_top
        position = turtle_rect = turtle.get_rect()
        speed = [5,0]

    # 填充背景
    screen.fill(bg)
    # 更新图像
    screen.blit(turtle,position)
    # 更新界面
    pygame.display.flip()
    # 延迟10毫秒
    # pygame.time.delay(10)
    clock.tick(150)

9.选定区域拖动复制

import pygame
import sys
from pygame.locals import *

pygame.init()

size = width, height = 800, 600
bg = (255, 255, 255)

clock = pygame.time.Clock()
screen = pygame.display.set_mode(size)
pygame.display.set_caption("FishC Demo")

turtle = pygame.image.load("turtle.png")

# 0 -> 未选择，1 -> 选择中，2 -> 完成选择
select = 0
select_rect = pygame.Rect(0, 0, 0, 0)
# 0 -> 未拖拽，1 -> 拖拽中，2 -> 完成拖拽
drag = 0

position = turtle.get_rect()
position.center = width // 2, height // 2

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

        elif event.type == MOUSEBUTTONDOWN:
            if event.button == 1:
                # 第一次点击，选择范围
                if select == 0 and drag == 0:
                    pos_start = event.pos
                    select = 1
                # 第二次点击，推拽图像
                elif select == 2 and drag == 0:
                    capture = screen.subsurface(select_rect).copy()
                    cap_rect = capture.get_rect()
                    drag = 1
                # 第三次点击，初始化
                elif select == 2 and drag == 2:
                    select = 0
                    drag = 0

        elif event.type == MOUSEBUTTONUP:
            if event.button == 1:
                # 第一次释放，结束选择
                if select == 1 and drag == 0:
                    pos_stop = event.pos
                    select = 2
                # 第二次释放，结束拖拽
                if select == 2 and drag == 1:
                    drag = 2
                
    screen.fill(bg)
    screen.blit(turtle, position)
    
    # 实时绘制选择框
    if select:
        mouse_pos = pygame.mouse.get_pos()
        if select == 1:
            pos_stop = mouse_pos
        select_rect.left, select_rect.top = pos_start
        select_rect.width, select_rect.height = pos_stop[0] - pos_start[0], pos_stop[1] - pos_start[1]
        pygame.draw.rect(screen, (0, 0, 0), select_rect, 1)

    # 拖拽裁剪的图像
    if drag:
        if drag == 1:
            cap_rect.center = mouse_pos
        screen.blit(capture, cap_rect)
           
    pygame.display.flip()
    
    clock.tick(30)

10.图像透明效果

# -*- coding: utf-8 -*-
import pygame
import sys
from pygame.locals import *

pygame.init()

size = width, height = 640, 480
bg = (0, 0, 0)

clock = pygame.time.Clock()
screen = pygame.display.set_mode(size)
pygame.display.set_caption("FishC Demo")

turtle = pygame.image.load("turtle.png").convert_alpha()
background  = pygame.image.load("background.jpg").convert()
position = turtle.get_rect()
position.center = width // 2, height // 2

def blit_alpha(target, source, location, opacity):# 该函数实现的部分区域的背景和图片的重画，以便于能实现图片的透明效果
    x = location[0]
    y = location[1]
    temp = pygame.Surface((source.get_width(), source.get_height())).convert()
    temp.blit(target, (-x, -y)) # 大背景图移动相应的位置，这样与大背景一致（纹路对齐）
    temp.blit(source, (0, 0))
    temp.set_alpha(opacity)        
    target.blit(temp, location)

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

    screen.blit(background, (0, 0))
    blit_alpha(screen, turtle, position, 200)
    
    pygame.display.flip()
    
    clock.tick(30)

11.pygame绘图1

# -*- coding: utf-8 -*-
import pygame
import sys
from pygame.locals import *

pygame.init()

WHITE = (255, 255, 255)
BLACK = (0, 0, 0)

size = width, height = 640, 200
screen = pygame.display.set_mode(size)
pygame.display.set_caption("FishC Demo")

clock = pygame.time.Clock()

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

    screen.fill(WHITE)
    
    pygame.draw.rect(screen, BLACK, (50, 50, 150, 50), 0)
    pygame.draw.rect(screen, BLACK, (250, 50, 150, 50), 1)
    pygame.draw.rect(screen, BLACK, (450, 50, 150, 50), 10)

    pygame.display.flip()

    clock.tick(10) # 1秒钟绘制10帧

12.pygame绘图2

# -*- coding: utf-8 -*-
import pygame
import sys
from pygame.locals import *

pygame.init()

WHITE = (255, 255, 255)
BLACK = (0, 0, 0)
GREEN = (0, 255,0)

points = [(200,75),(300,25),(400,75),(450,25),(450,125),(400,75),(300,125)]

size = width, height = 640, 200
screen = pygame.display.set_mode(size)
pygame.display.set_caption("FishC Demo")

clock = pygame.time.Clock()

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

    screen.fill(WHITE)
    
    pygame.draw.polygon(screen, GREEN, points, 0)
    
    pygame.display.flip()

    clock.tick(10) # 1秒钟绘制10帧

13.pygame绘图3

# -*- coding: utf-8 -*-
import pygame
import sys
from pygame.locals import *

pygame.init()

WHITE = (255, 255, 255)
BLACK = (0, 0, 0)
GREEN = (0, 255,0)
RED = (255,0,0)
BLUE = (0,0,255)

size = width, height = 640, 480
screen = pygame.display.set_mode(size)
pygame.display.set_caption("FishC Demo")

position = size[0]//2,size[1]//2
moving = False

clock = pygame.time.Clock()

while True:
    for event in pygame.event.get():
        if event.type == QUIT:
            sys.exit()
        if event.type == MOUSEBUTTONDOWN:
            if event.button == 1:
                moving = True
        if event.type == MOUSEBUTTONUP:
            if event.button == 1:
                moving = False
    if moving:
        position = pygame.mouse.get_pos()
                

    screen.fill(WHITE)
    
    pygame.draw.circle(screen, RED, position, 25, 1)
    pygame.draw.circle(screen, GREEN, position, 75, 1)
    pygame.draw.circle(screen, BLUE, position, 125, 1)
    
    
    pygame.display.flip()

    clock.tick(60) # 1秒钟绘制60帧

14.pygame绘图4

# -*- coding: utf-8 -*-
import pygame
import sys
from pygame.locals import *

pygame.init()

WHITE = (255, 255, 255)
BLACK = (0, 0, 0)
GREEN = (0, 255,0)
RED = (255,0,0)
BLUE = (0,0,255)

size = width, height = 640, 480
screen = pygame.display.set_mode(size)
pygame.display.set_caption("FishC Demo")


clock = pygame.time.Clock()

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

    screen.fill(WHITE)
    
    pygame.draw.ellipse(screen,BLACK,(100,100,440,100),1)
    pygame.draw.ellipse(screen,BLUE,(220,50,200,200),0)
    
    pygame.display.flip()

    clock.tick(60) # 1秒钟绘制60帧

15.pygame绘图5

# -*- coding: utf-8 -*-
import pygame
import sys
import math
from pygame.locals import *

pygame.init()

WHITE = (255, 255, 255)
BLACK = (0, 0, 0)
GREEN = (0, 255,0)
RED = (255,0,0)
BLUE = (0,0,255)

size = width, height = 640, 480
screen = pygame.display.set_mode(size)
pygame.display.set_caption("FishC Demo")


clock = pygame.time.Clock()

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

    screen.fill(WHITE)
    
    pygame.draw.arc(screen,BLACK,(100,100,440,100),0,math.pi,1)
    pygame.draw.arc(screen,BLUE,(220,50,200,200),math.pi,math.pi*2,1)
    
    pygame.display.flip()

    clock.tick(60) # 1秒钟绘制60帧

16.pygame绘图6

# -*- coding: utf-8 -*-
import pygame
import sys
from pygame.locals import *

pygame.init()

WHITE = (255, 255, 255)
BLACK = (0, 0, 0)
GREEN = (0, 255, 0)

points = [(200, 75), (300, 25), (400, 75), (450, 25), (450, 125), (400, 75), (300, 125)]

size = width, height = 640, 480
screen = pygame.display.set_mode(size)
pygame.display.set_caption("FishC Demo")

clock = pygame.time.Clock()

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

    screen.fill(WHITE)
    
    pygame.draw.lines(screen, GREEN, 1, points, 1)
    pygame.draw.line(screen, BLACK, (100, 200), (540, 250), 1)
    pygame.draw.aaline(screen, BLACK, (100, 250), (540, 300), 1)
    pygame.draw.aaline(screen, BLACK, (100, 300), (540, 350), 0)

    pygame.display.flip()


    clock.tick(60) # 1秒钟绘制60帧