save project

ballgame.py

+import pygame
+pygame.init()
+vinfo = pygame.display.Info()
+size = width, height = vinfo.current_w,vinfo.current_h
+size = width, height =600,400
+size = width,height
+speed = [1,1]
+BLACK = 0, 0, 0
+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("ballgame")
+ball = pygame.image.load("PYG02-ball.gif")
+icon = pygame.image.load("PYG03-flower.png")
+pygame.display.set_icon(icon)
+ballrect = ball.get_rect()
+fclock = pygame.time.Clock()
+while True:
+    for event in pygame.event.get():
+        if event.type == pygame.QUIT:
+            exit()
+        elif event.type == pygame.KEYDOWN:
+            if event.key == pygame.K_LEFT:
+                if speed[0] < 0:
+                    speed[0] = speed[0] + 1
+                if speed[0] > 0:
+                    speed[0] = speed[0] - 1
+            elif event.key == pygame.K_RIGHT:    
+                if speed[0] < 0:
+                    speed[0] = speed[0] - 1
+                if speed[0] >= 0:
+                    speed[0] = speed[0] + 1
+            if event.key == pygame.K_DOWN:
+                if speed[1] < 0:
+                    speed[1] = speed[1] + 1
+                if speed[1] > 0:
+                    speed[1] = speed[1] - 1
+            elif event.key == pygame.K_UP:    
+                if speed[1] < 0:
+                    speed[1] = speed[1] - 1
+                if speed[1] >= 0:
+                    speed[1] = speed[1] + 1
+            elif event.key == pygame.K_ESCAPE:
+                exit()
+        elif event.type == pygame.VIDEORESIZE:
+            size = width,height = event.size[0],event.size[1]
+            screen = pygame.display.set_mode(size,pygame.RESIZABLE)
+    if pygame.display.get_active():
+        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.update()
+    fclock.tick(500)
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