python pygame筆記

import pygame,sys
from pygame.locals import *
def RGBChannel(a):
    return 0 if a<0 else (255 if a>255 else int(a))
pygame.init()
size = width,height = 600,400
bgcolor = pygame.Color("black")
clock = pygame.time.Clock()
screen = pygame.display.set_mode(size)
pygame.display.set_caption("滑滑稽")
photo = pygame.image.load("huaji.png")
position = photo_rect = photo.get_rect()
speed = [2,0]

photo_right = pygame.transform.rotate(photo,90)
photo_top = pygame.transform.rotate(photo,180)
photo_left = pygame.transform.rotate(photo,270)
photo_bottom = photo

photo = photo_top

while True:
    for event in pygame.event.get():
        if event.type == QUIT:
            sys.exit()
    position = position.move(speed)
    if position.right > width:
        photo = photo_right
        speed = [0,2]
        position = photo_rect = photo.get_rect()
        position.left = width - photo_rect.width
    if position.bottom > height:
        photo = photo_bottom
        speed = [-2,0]
        position = photo_rect = photo.get_rect()
        position.left = width - photo_rect.width
        position.top = height - photo_rect.height
    if position.left < 0:
        photo = photo_left
        speed = [0,-2]
        position = photo_rect = photo.get_rect()
        # position.left = width - photo_rect.width
        position.top = height - photo_rect.height
    if position.top < 0:
        photo = photo_top
        position = photo_rect = photo.get_rect()
        speed = [2,0]
        # position.left = width - photo_rect.width
        # position.top = height - photo_rect.height
    bgcolor.r = RGBChannel(photo_rect.left * 255 / width)
    bgcolor.g = RGBChannel(photo_rect.top * 255 / height)
    bgcolor.b = RGBChannel(min(speed[0], speed[1]) * 255 / max(speed[0], speed[1], 1))
    screen.fill(bgcolor)
    screen.blit(photo,position)
    pygame.display.update()
    clock.tick(600)



'''
裁剪圖片
'''
import pygame
import sys
from pygame.locals import *
pygame.init()
size = width,height = 600,400
bg = (255,255,255)
screen = pygame.display.set_mode(size)
pygame.display.set_caption("初次見面，請大家多多關照")
dog = pygame.image.load("huaji.png")

# 使用 select 判斷選擇框狀態，drag 判斷拖拽的狀態
# 0->未選擇，1->選擇中，2->完成選擇
select = 0

# 0->未拖拽，1->拖拽中，2->完成拖拽
drag = 0

# Rect 用於存儲直角座標的pygame對象
# Rect（左，頂，寬，高） 這些屬性可以控制一個矩形的位置，大小
select_rect = pygame.Rect(0,0,0,0)

# 獲得圖像的位置矩形
position = dog.get_rect()
# 爲了控制將初始圖像放置在screen的中心處
position.center = width //2,height //2 # 整除獲得圖像中心位置

# 設置爲死循環，確保窗口一直顯示
while True:
    # 遍歷所有的事件
    for event in pygame.event.get():
        # 如果單擊關閉窗口，則退出
        if event.type == pygame.QUIT:
            sys.exit()
        # 如果發生鼠標按下事件
        elif event.type == MOUSEBUTTONDOWN:
            # 鼠標摁下的兩個屬性，button(1:鼠標摁下)和pos(鼠標點擊的座標)
            if event.button == 1:
                # 第一次點擊，選擇範圍
                if select == 0 and drag == 0:
                    pos_start = pygame.mouse.get_pos()#或者event.pos
                    select = 1
                # 第二次點擊，拖拽圖像
                elif select ==2 and drag == 0:
                    # subsurface 創建一個引用其父級的新表面
                    # copy 方法，返回與原始位置和大小相同的新矩形
                    capture = screen.subsurface(select_rect).copy()
                    cap_rect = capture.get_rect()
                    drag = 1
                # 第三次點擊，初始化
                elif select == 2 and drag == 2:
                    select =0
                    drag = 0
        elif event.type == MOUSEBUTTONUP:
            # button = 1 代表鬆開鼠標
            if event.button == 1:
                # 第一次釋放，結束選擇
                if select == 1 and drag ==0:
                    # 記錄釋放點的座標
                    #pos_stop = event.pos#這個沒必要加
                    select = 2
                if select == 2 and drag == 1:
                    drag = 2

    # 填充背景
    screen.fill(bg)
    # 更新圖像
    screen.blit(dog,position)

     # 實時繪製選擇框
    if select:
        #pygame.mouse.get_pos():返回鼠標光標的位置X和Y位置。該位置相對於顯示屏的左上角。
        mouse_pos = pygame.mouse.get_pos()
        if select == 1:
            pos_stop = mouse_pos
        # 選擇框的 left 和 top 通過起始鼠標點擊處確定選擇框的位置
        select_rect.left,select_rect.top = pos_start
        # 確定選擇框的寬和高
        select_rect.width,select_rect.height = pos_stop[0] - pos_start[0],pos_stop[1] - pos_start[1]
        # 畫一個矩形
        pygame.draw.rect(screen,(0,0,0),select_rect,4)#那3個0是邊框顏色,4代表邊框線的厚度

    # 拖拽裁剪圖像
    if drag:
        if drag == 1:
            cap_rect.center = mouse_pos
        screen.blit(capture,cap_rect)
    # 更新界面
    pygame.display.flip()



import pygame
import sys
from pygame.locals import *
pygame.init()
size = width,height = 658,302
bg = (0,0,0)
clock = pygame.time.Clock()
screen = pygame.display.set_mode(size)
pygame.display.set_caption("初次見面，請大家多多關照")

dog = pygame.image.load("huaji.png").convert()
# dog.set_colorkey(255,255,255)
background = pygame.image.load("chuanqi.png").convert()

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


dog.set_colorkey((255,255,255))
dog.set_alpha((255,255,255))
# 設置爲死循環，確保窗口一直顯示
while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            sys.exit()

    # 更新圖像
    screen.blit(background,(0,0))
    screen.blit(dog, position)
    # 更新界面
    pygame.display.flip()

    clock.tick(30)
    
    
    
#壁球遊戲
import pygame,sys
def RGBChannel(a):
    return 0 if a<0 else (255 if a>255 else int(a))
pygame.init()
icon = pygame.image.load("cat.png")
pygame.display.set_icon(icon)
# VInfo = pygame.display.Info()
# size = width,height = VInfo.current_w,VInfo.current_h
size = width,height = 600,400#1200,700
speed=[1,1]
# BLACK = 230, 230, 230
screen = pygame.display.set_mode(size)
bgcolor = pygame.Color("black")
# screen = pygame.display.set_mode(size,pygame.RESIZABLE)
# screen = pygame.display.set_mode(size,pygame.NOFRAME)
# screen = pygame.display.set_mode(size,pygame.FULLSCREEN)
pygame.display.set_caption("Pygame遊戲壁球")
ball = pygame.image.load("liqiangg.png")
ballrect = ball.get_rect()
fps  =300
fclock = pygame.time.Clock()
still = False
while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            sys.exit()
        elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_LEFT:
                speed[0] = speed[0] if speed[0] == 0 else (abs(speed[0])-1)*int(speed[0])/abs(speed[0])
            elif event.key == pygame.K_RIGHT:
                speed[0] = speed[0] + 1 if speed[0] > 0 else speed[0]-1
            elif event.key == pygame.K_UP:
                speed[1] = speed[1] + 1 if speed[1] > 0 else speed[1]-1
            elif event.key == pygame.K_DOWN:
                speed[1] = speed[1] if speed[1] == 0 else (abs(speed[1])-1)*int(speed[1])/abs(speed[1])
            elif event.key == pygame.K_ESCAPE:
                sys.exit()
        elif event.type == pygame.VIDEORESIZE:
            size = width,height = event.size[0],event.size[1]
            screen = pygame.display.set_mode(size,pygame.RESIZABLE)
        elif event.type == pygame.MOUSEBUTTONDOWN:
            if event.button == 1:
                still = True
        elif event.type == pygame.MOUSEBUTTONUP:
            still = False
            if event.button == 1:
                ballrect = ballrect.move(event.pos[0]-ballrect.left,event.pos[1]-ballrect.top)
        elif event.type == pygame.MOUSEMOTION:
            if event.buttons[0] == 1:
                ballrect = ballrect.move(event.pos[0]-ballrect.left,event.pos[1]-ballrect.top)

    if pygame.display.get_active() and not still:
        ballrect = ballrect.move(speed[0],speed[1])
    ballrect = ballrect.move(speed[0],speed[1])
    if ballrect.left < 0 or ballrect.right > width:
        speed[0] = -speed[0]
        if ballrect.right > width and ballrect.right + speed[0] > ballrect.right:
            speed[0] = -speed[0]
    if ballrect.top < 0 or ballrect.bottom > height:
        speed[1] = -speed[1]
        if ballrect.bottom > height and ballrect.bottom + speed[1] > ballrect.bottom:
            speed[1] = -speed[1]
    # screen.fill(BLACK)
    bgcolor.r = RGBChannel(ballrect.left*255/width)
    bgcolor.g = RGBChannel(ballrect.top*255/height)
    bgcolor.b = RGBChannel(min(speed[0],speed[1])*255/max(speed[0],speed[1],1))
    screen.fill(bgcolor)
    screen.blit(ball,ballrect)
    pygame.display.update()
    fclock.tick(fps)