一、個人理解
import sys, pygame
pygame.init()
size = width, height = 320, 200
speed = [2, 2]
black = 0, 0, 0
screen = pygame.display.set_mode(size)
pygame.display.set_caption('Hello World')
ball = pygame.image.load("intro_ball.gif")
ballrect = ball.get_rect()
while 1:
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit()
sys.exit()
ballrect = ballrect.move(speed)
if ballrect.left < 0 or ballrect.right > width:
speed[0] = -speed[0]
if ballrect.top < 0 or ballrect.bottom > height:
speed[1] = -speed[1]
screen.fill(black)
screen.blit(ball, ballrect)
pygame.display.flip()
1.點擊窗口的關閉按鈕,會觸發退出事件,if判斷檢測到,會出退出窗口。沒有下面的代碼,窗口關閉不了。
#遍歷所有事件
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit()
sys.exit()
事件都是使用隊列存儲的。
2.display這個對象,對應的是下面這個顯示的窗口(display==顯示的窗口),對象有設置標題、窗口大小的方法。
3.pygame.display.set_mode(size)#返回的是Surface對象,也可以當作 screen 的意思
(surface == 紅線標出來的窗口)。可以設置填充色等。
ball = pygame.image.load("intro_ball.gif")
print(type(ball))
結果:
<class 'pygame.Surface'>
4.ball.get_rect() #返回的是Rect對象,圖片轉換成矩形對象。
(rect對象 == 矩形圖片)。有移動等方法。
5.ballrect.move(speed)#speed是座標,列表表示。ballrect當前的座標是原點座標,移到speed的座標。
也可以理解,橫向移動speed[0]個像素,縱向移動speed[1]個像素
Pygame的座標原點(0,0)點位於左上角,X軸自左向右,Y軸自上向下,單位爲像素。
6.一個遊戲循環(也可以稱爲主循環)就做下面這三件事:
- 處理事件
- 更新遊戲狀態
- 繪製遊戲狀態到屏幕上
二、視頻筆記
1.Rect對象
2.screen.fill(color)
3.screen.blit(src, dest)
4.代碼整理預覽
5.控制幀率控制畫面的切換速度
其實就是根據幀率,計算出每次循環應該等的時間間隔,然後每次執行睡眠對應的時間間隔。
6.鍵盤控制小球
方向鍵控制小球的移動方向。小球一直在根據speed的值move,通過時間改變speed的值來改變小球的移動
import sys, pygame
#初始化每個模塊的調用
pygame.init()
size = width, height = 320, 240
speed = [0, 0]
black = 0, 0, 0
screen = pygame.display.set_mode(size)
print(type(screen))
ball = pygame.image.load("intro_ball.gif")
ballrect = ball.get_rect()
ftp = 100
fclock = pygame.time.Clock()
while 1:
for event in pygame.event.get():
if event.type == pygame.QUIT:
sys.exit()
elif event.type == pygame.KEYDOWN:
if event.key == pygame.K_UP:
speed[1] = -1 #小球向上移動
speed[0] = 0 #小球左右不移動
elif event.key == pygame.K_DOWN:
speed[1] = 1 #小球向下移動
speed[0] = 0 #小球左右不移動
elif event.key == pygame.K_LEFT:
speed[0] = -1 #小球向左移動
speed[1] = 0 #小球上下不移動
elif event.key == pygame.K_RIGHT:
speed[0] = 1 #小球向右移動
speed[1] = 0 #小球上下不移動
ballrect = ballrect.move(speed)
screen.fill(black)
screen.blit(ball, ballrect)
pygame.display.flip()
fclock.tick(ftp)
7.屏幕的相關設置
全屏顯示,按ESC退出
import sys, pygame
#初始化每個模塊的調用
pygame.init()
#獲取屏幕的信息
vInfo = pygame.display.Info()
#獲取屏幕的寬度和高度
size = width,height = vInfo.current_w ,vInfo.current_h
#size = width, height = 320, 240
speed = [0, 0]
black = 0, 0, 0
#設置屏幕模式爲全屏
screen = pygame.display.set_mode(size,pygame.FULLSCREEN)
ball = pygame.image.load("intro_ball.gif")
ballrect = ball.get_rect()
ftp = 100
fclock = pygame.time.Clock()
while 1:
for event in pygame.event.get():
if event.type == pygame.QUIT:
sys.exit()
elif event.type == pygame.KEYDOWN:
if event.key == pygame.K_UP:
speed[1] = -1 #小球向上移動
speed[0] = 0 #小球左右不移動
elif event.key == pygame.K_DOWN:
speed[1] = 1 #小球向下移動
speed[0] = 0 #小球左右不移動
elif event.key == pygame.K_LEFT:
speed[0] = -1 #小球向左移動
speed[1] = 0 #小球上下不移動
elif event.key == pygame.K_RIGHT:
speed[0] = 1 #小球向右移動
speed[1] = 0 #小球上下不移動
elif event.key == pygame.K_ESCAPE:#當全屏的時候,需要按鍵ESC退出
sys.exit()
ballrect = ballrect.move(speed)
screen.fill(black)
screen.blit(ball, ballrect)
pygame.display.flip()
fclock.tick(ftp)
窗口可以隨意的拖動改變大小。
import sys, pygame
#初始化每個模塊的調用
pygame.init()
#獲取屏幕的信息
vInfo = pygame.display.Info()
#獲取屏幕的寬度和高度
size = width,height = vInfo.current_w ,vInfo.current_h
#size = width, height = 320, 240
speed = [0, 0]
black = 0, 0, 0
#設置屏幕模式爲全屏
screen = pygame.display.set_mode(size,pygame.RESIZABLE)
ball = pygame.image.load("intro_ball.gif")
ballrect = ball.get_rect()
ftp = 100
fclock = pygame.time.Clock()
while 1:
for event in pygame.event.get():
if event.type == pygame.QUIT:
sys.exit()
elif event.type == pygame.KEYDOWN:
if event.key == pygame.K_UP:
speed[1] = -1 #小球向上移動
speed[0] = 0 #小球左右不移動
elif event.key == pygame.K_DOWN:
speed[1] = 1 #小球向下移動
speed[0] = 0 #小球左右不移動
elif event.key == pygame.K_LEFT:
speed[0] = -1 #小球向左移動
speed[1] = 0 #小球上下不移動
elif event.key == pygame.K_RIGHT:
speed[0] = 1 #小球向右移動
speed[1] = 0 #小球上下不移動
elif event.key == pygame.K_ESCAPE:#當全屏的時候,需要按鍵ESC退出
sys.exit()
elif event.type == pygame.VIDEORESIZE:#檢測窗口變化事件
size = event.size[0],event.size[1]#獲取最新的窗口大小
screen = pygame.display.set_mode(size, pygame.RESIZABLE)#重新設置窗口模式
ballrect = ballrect.move(speed)
screen.fill(black)
screen.blit(ball, ballrect)
pygame.display.flip()
fclock.tick(ftp)
關閉窗口,遊戲停止
import sys, pygame
pygame.init()
size = width, height = 320, 240
speed = [2, 2]
black = 0, 0, 0
screen = pygame.display.set_mode(size)
ball = pygame.image.load("intro_ball.gif")
ballrect = ball.get_rect()
while 1:
for event in pygame.event.get():
if event.type == pygame.QUIT: sys.exit()
if pygame.display.get_active():#窗口關閉就不移動了
ballrect = ballrect.move(speed)
if ballrect.left < 0 or ballrect.right > width:
speed[0] = -speed[0]
if ballrect.top < 0 or ballrect.bottom > height:
speed[1] = -speed[1]
screen.fill(black)
screen.blit(ball, ballrect)
pygame.display.flip()
filp()是更新全部
update()是更新變化的地方
8.事件
測試事件的三個屬性,打印出來
import sys, pygame
pygame.init()
size = width, height = 320, 240
speed = [2, 2]
black = 0, 0, 0
screen = pygame.display.set_mode(size)
ball = pygame.image.load("intro_ball.gif")
ballrect = ball.get_rect()
while 1:
for event in pygame.event.get():
if event.type == pygame.QUIT:
sys.exit()
elif event.type == pygame.KEYDOWN:
if event.unicode == "":
print("#",event.key,event.mod)
else:
print(event.unicode,event.key,event.mod)
screen.fill(black)
screen.blit(ball, ballrect)
pygame.display.flip()
import sys, pygame
pygame.init()
size = width, height = 320, 240
speed = [2, 2]
black = 0, 0, 0
screen = pygame.display.set_mode(size)
ball = pygame.image.load("intro_ball.gif")
ballrect = ball.get_rect()
while 1:
for event in pygame.event.get():
if event.type == pygame.QUIT:
sys.exit()
elif event.type == pygame.MOUSEBUTTONDOWN:
if event.button == 1:
speed[0] = event.pos[0]
speed[1] = event.pos[1]
ballrect = ballrect.move(speed)
screen.fill(black)
screen.blit(ball, ballrect)
pygame.display.flip()
#創建一個事件,添加到隊列中
uevent = pygame.event.Event(pygame.KEYDOWN,{'nuicode':123,'key':pygame.K_SPACE,'mod':0})
pygame.event.post(uevent)
9.顏色
10.畫圖
11.繪製文字