1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 | """ Example program to show how to do an instruction screen. Sample Python/Pygame Programs Simpson College Computer Science"""import pygame# Define some colorsBLACK = (0, 0, 0)WHITE = (255, 255, 255)GREEN = (0, 255, 0)RED = (255, 0, 0)pygame.init()# Set the height and width of the screensize = [700, 500]screen = pygame.display.set_mode(size)pygame.display.set_caption("Instruction Screen")# Loop until the user clicks the close button.done = False# Used to manage how fast the screen updatesclock = pygame.time.Clock()# Starting position of the rectanglerect_x = 50rect_y = 50# Speed and direction of rectanglerect_change_x = 5rect_change_y = 5# This is a font we use to draw text on the screen (size 36)font = pygame.font.Font(None, 36)display_instructions = Trueinstruction_page = 1# -------- Instruction Page Loop -----------while not done and display_instructions: for event in pygame.event.get(): if event.type == pygame.QUIT: done = True if event.type == pygame.MOUSEBUTTONDOWN: instruction_page += 1 if instruction_page == 3: display_instructions = False # Set the screen background screen.fill(BLACK) if instruction_page == 1: # Draw instructions, page 1 # This could also load an image created in another program. # That could be both easier and more flexible. text = font.render("Instructions", True, WHITE) screen.blit(text, [10, 10]) text = font.render("Page 1", True, WHITE) screen.blit(text, [10, 40]) if instruction_page == 2: # Draw instructions, page 2 text = font.render("This program bounces a rectangle", True, WHITE) screen.blit(text, [10, 10]) text = font.render("Page 2", True, WHITE) screen.blit(text, [10, 40]) # Limit to 60 frames per second clock.tick(60) # Go ahead and update the screen with what we've drawn. pygame.display.flip()# -------- Main Program Loop -----------while not done: for event in pygame.event.get(): if event.type == pygame.QUIT: done = True # Set the screen background screen.fill(BLACK) # Draw the rectangle pygame.draw.rect(screen, WHITE, [rect_x, rect_y, 50, 50]) # Move the rectangle starting point rect_x += rect_change_x rect_y += rect_change_y # Bounce the ball if needed if rect_y > 450 or rect_y < 0: rect_change_y = rect_change_y * -1 if rect_x > 650 or rect_x < 0: rect_change_x = rect_change_x * -1 # Limit to 60 frames per second clock.tick(60) # Go ahead and update the screen with what we've drawn. pygame.display.flip()# Be IDLE friendly. If you forget this line, the program will 'hang'# on exit.pygame.quit() |