""" idea.py
    Simplest possible pygame display
    Demonstrates IDEA/ALTER model
    Note: Don't try to run any pygame stuff
    within IDLE will lockup!
    Jaime Moreno
    4/2/07
    """

#I - Import and initialize
import pygame
pygame.init()

#D - Display configuration
screen = pygame.display.set_mode((640,480))
pygame.display.set_caption("Hello, world!")

#E - Entities (just background for now)
background = pygame.Surface(screen.get_size())
background = background.convert()
background.fill((100,60,25))

#A - Action (broken into ALTER steps)

  #A - Assign values to key variables
clock = pygame.time.Clock()
keepGoing = True

  #L - Set up main loop
while keepGoing:
    #T - Timer to set frame rate
    clock.tick(30)

    #E - Event handling
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            keepGoing = False

    #R - Refresh display
    screen.blit(background, (0,0))
    pygame.display.flip()

# end main game loop

""" image.py    Illustrates drawing an imported image    Simplest possible pygame display    Demonstrates IDEA/ALTER model    Note: Don't try to run any pygame stuff    within IDLE will lockup!    Jaime Moreno    4/2/07    """#I - Import and initialize still in global scopeimport pygamepygame.init()def main():    #D - Display configuration    screen = pygame.display.set_mode((640,480))    pygame.display.set_caption("Display an image")    #E - Entities (just background for now)    background = pygame.Surface(screen.get_size())    background = background.convert() # don't use for image editors    background.fill((255,255,0))    # note lack of error checking if image not there program will crash!    image = pygame.image.load("openingScreen.bmp")    image = image.convert()    #A - Action (broken into ALTER steps)    #A - Assign values to key variables    clock = pygame.time.Clock()    keepGoing = True    #L - Set up main loop    while keepGoing:    #T - Timer to set frame rate        clock.tick(30)    #E - Event handling        for event in pygame.event.get():            if event.type == pygame.QUIT:                keepGoing = False        #R - Refresh display        screen.blit(background, (0,0))        #screen.blit(image, (250, 150))        screen.blit(image, (0,0))                pygame.display.flip()# end main game loop# Run main if this is the primary program# Note use of 2 underscoresif __name__ == "__main__":    main()  # call main function here

[source lang ="python"]""" moveBox.py    Illustrates basic motion using pygame    Uses IDEA/ALTER model    Note: Don't try to run any pygame stuff    within IDLE will lockup!    Jaime Moreno    4/2/07    """#I - Import and initializeimport pygamepygame.init()#D - Display configurationscreen = pygame.display.set_mode((640,480))pygame.display.set_caption("move a box!")#E - Entities (just background for now)# yellow backgroundbackground = pygame.Surface(screen.get_size())background = background.convert()background.fill((255,255,0))# make a red 25x25 boxbox = pygame.Surface((25,25))box = box.convert()box.fill((255,0,0)) # red box# set up some box variablesbox_x = 0box_y = 200#A - Action (broken into ALTER steps)  #A - Assign values to key variablesclock = pygame.time.Clock()keepGoing = True  #L - Set up main loopwhile keepGoing:    #T - Timer to set frame rate    clock.tick(30)    #E - Event handling    for event in pygame.event.get():        if event.type == pygame.QUIT:            keepGoing = False                #modify box value    box_x += 5    #check boundaries    if box_x > screen.get_width():          box_x = 0              #R - Refresh display    screen.blit(background, (0,0))    screen.blit(box,(box_x,box_y))    pygame.display.flip()# end main game loop

""" drawDemo.py    Illustrates pygame's drawing functions    Simplest possible pygame display    Demonstrates IDEA/ALTER model    Note: Don't try to run any pygame stuff    within IDLE will lockup!    Jaime Moreno    4/2/07    """#I - Import and initialize still in global scopeimport pygame, math # note we added math to get access for math.pi which we use in drawing arcpygame.init()def drawStuff(background):    """ given a surface, draws a bunch of things on it """    # draw a line from (5,100) to (100,100)    pygame.draw.line(background, (255,0,0), (5,100), (100,100))    # draw an unfilled square    pygame.draw.rect(background, (0,255,0), ((200,5), (100,100)),3)    # draw a filled circle    pygame.draw.circle(background, (0,0,255), (400,50), 45)    # draw an arc    pygame.draw.arc(background, (0,0,0), ((5,150), (100,100)),0, math.pi/2, 5)    # draw an ellipse    pygame.draw.ellipse(background, (0xCC, 0xCC, 0x00), ((150,150), (150,100)),0)    # note use of hex color codes in line above if you are into hex instead of RGB values    # draw lines    points = (        (370,160),        (370,237),        (372,193),        (411,194),        (412,237),        (412,160),        (412,237),        (432,227),        (436,196),        (433,230)        )    pygame.draw.lines(background, (0xFF, 0x00, 0x00), False, points, 3)    # draw polygon    points = (        (137,372),        (232,319),        (383,335),        (442,389),        (347,432),        (259,379),        (220,439),        (132,392)        )    pygame.draw.polygon(background, (0x33,0xff,0x33), points)    # compare normal and anti-aliased diagonal lines    pygame.draw.line(background, (0,0,0), (480,425), (550,325),1)    pygame.draw.aaline(background, (0,0,0), (500,425), (570,325), 1)        def main():    #D - Display configuration    screen = pygame.display.set_mode((640,480))    pygame.display.set_caption("Drawing commands")    #E - Entities (just background for now)    background = pygame.Surface(screen.get_size())    background = background.convert() # don't use for image editors    background.fill((255,255,255))    drawStuff(background)    #A - Action (broken into ALTER steps)    #A - Assign values to key variables    clock = pygame.time.Clock()    keepGoing = True    #L - Set up main loop    while keepGoing:    #T - Timer to set frame rate        clock.tick(30)    #E - Event handling        for event in pygame.event.get():            if event.type == pygame.QUIT:                keepGoing = False            elif event.type == pygame.MOUSEBUTTONUP:                print pygame.mouse.get_pos() # useful for debugging        #R - Refresh display        screen.blit(background, (0,0))        pygame.display.flip()# end main game loop# Run main if this is the primary program# Note use of 2 underscoresif __name__ == "__main__":    main()  # call main function here

""" basicEvents.py    Demonstrates essential mouse    and keyboard events    Only reads one keypress at a time so     key combinations like ctrl+key won't work    Simplest possible pygame display    Demonstrates IDEA/ALTER model    Note: Don't try to run any pygame stuff    within IDLE will lockup!    Jaime Moreno    4/4/07    """#I - Import and initialize still in global scopeimport pygamepygame.init()def main():    #D - Display configuration    screen = pygame.display.set_mode((640,480))    pygame.display.set_caption("Press mouse and keys - look for output in console")    #E - Entities (just background for now)    background = pygame.Surface(screen.get_size())    background = background.convert() # don't use for image editors    background.fill(pygame.color.Color("yellow"))    #A - Action (broken into ALTER steps)    #A - Assign values to key variables    clock = pygame.time.Clock()    keepGoing = True    #L - Set up main loop    while keepGoing:    #T - Timer to set frame rate        clock.tick(30)    #E - Event handling        for event in pygame.event.get():            if event.type == pygame.QUIT:                keepGoing = False            elif event.type == pygame.KEYDOWN:                keyName = pygame.key.name(event.key)                print "key pressed:", keyName                if event.key == pygame.K_ESCAPE:                    keepGoing = False            elif event.type == pygame.MOUSEBUTTONDOWN:                print "mouse down:",                pygame.mouse.get_pos()            elif event.type == pygame.MOUSEBUTTONUP:                print "mouse up:", pygame.mouse.get_pos()                        #R - Refresh display        screen.blit(background, (0,0))        pygame.display.flip()# end main game loop# Run main if this is the primary program# Note use of 2 underscoresif __name__ == "__main__":    main()  # call main function here    

""" lines.py     combine event handling and     drawing commands to build    a prototype drawing program """import pygamepygame.init()def main():    screen = pygame.display.set_mode((640, 480))    pygame.display.set_caption("Draw lines with the mouse")        background = pygame.Surface(screen.get_size())    background.fill((255, 255,255))        clock = pygame.time.Clock()    keepGoing = True    preview = False    lineStart = (0, 0)    lineEnd = (0, 0)        while(keepGoing):        clock.tick(30)                for event in pygame.event.get():            if event.type == pygame.QUIT:                keepGoing = False            elif event.type == pygame.MOUSEBUTTONDOWN:                lineStart = pygame.mouse.get_pos()                preview = True            elif event.type == pygame.MOUSEBUTTONUP:                lineEnd = pygame.mouse.get_pos()                pygame.draw.line(background, (0, 0, 0), lineStart, lineEnd, 3)                preview = False            elif event.type == pygame.MOUSEMOTION:                lineEnd = pygame.mouse.get_pos()                                    screen.blit(background, (0, 0))        if preview:            pygame.draw.line(screen, (100, 100, 100), lineStart, lineEnd, 1)        pygame.display.flip()    if __name__ == "__main__":    main()

""" pirates.py    Pirates version 1.0    First complete arcade game    made with Python and Pygame    move ship with mouse    deliver piracy to islands,    avoid thunderstorms.    Each island you plunder adds to your score.    Each cloud you hit is a hurricane and causes you to lose a ship.        Jaime Moreno    4/25/07      """#I - Import and initialize still in global scope   import pygame, randompygame.init()#D - Display configurationresolution = (800,600)screen = pygame.display.set_mode(resolution)#E - Entities (now contained in their own classes now# overall IDEA/ALTER game framework still intact though# we do have 2 alter's due to adding intro screen and game stateclass Ship(pygame.sprite.Sprite):    def __init__(self):        pygame.sprite.Sprite.__init__(self)        self.image = pygame.image.load("ship.gif")        self.image = self.image.convert()        self.rect = self.image.get_rect()                def update(self):        mousex, mousey = pygame.mouse.get_pos()        self.rect.center = (mousex, 430)                class Island(pygame.sprite.Sprite):    def __init__(self):        pygame.sprite.Sprite.__init__(self)        self.image = pygame.image.load("island.gif")        self.image = self.image.convert()        self.rect = self.image.get_rect()        self.reset()                self.dy = 5 # sets islands to move down screen and note speed is same as background scrolling ocean        def update(self):        self.rect.centery += self.dy        if self.rect.top > screen.get_height(): # makes islands wrap around to top            self.reset()                def reset(self):        self.rect.top = 0        self.rect.centerx = random.randrange(0, screen.get_width()) # we don't want islands appearing at same spot all time      class Cloud(pygame.sprite.Sprite):    def __init__(self):        pygame.sprite.Sprite.__init__(self)        self.image = pygame.image.load("Cloud.gif")        self.image = self.image.convert()        self.rect = self.image.get_rect()        self.reset()    def update(self):        self.rect.centerx += self.dx        self.rect.centery += self.dy        if self.rect.top > screen.get_height():            self.reset()        def reset(self):        self.rect.bottom = 0        self.rect.centerx = random.randrange(0, screen.get_width())        # set clouds to move in random directions at random speeds        self.dy = random.randrange(5, 10)        self.dx = random.randrange(-2, 2)    class Ocean(pygame.sprite.Sprite):    def __init__(self):        pygame.sprite.Sprite.__init__(self)        self.image = pygame.image.load("ocean.gif")        self.rect = self.image.get_rect()        self.dy = 5        self.reset()            def update(self):        self.rect.bottom += self.dy        # scrolling trick        # fool the player's eyesight into thinking the ocean background is infinite        if self.rect.bottom >= 1440:            self.reset()         def reset(self):        self.rect.top = -960class Scoreboard(pygame.sprite.Sprite):    def __init__(self):        pygame.sprite.Sprite.__init__(self)        self.lives = 5        self.score = 0        self.font = pygame.font.SysFont("None", 50)            def update(self):        self.text = "ships: %d, score: %d" % (self.lives, self.score)        yellow = (255, 255, 0)        self.image = self.font.render(self.text, 1, yellow)        self.rect = self.image.get_rect()    def game():    pygame.display.set_caption("Pirates v 1.0 by Jaime!")    background = pygame.Surface(screen.get_size())    background.fill((0, 0, 0))    screen.blit(background, (0, 0))    ship = Ship()        island = Island()    #can add more or less clouds here to make game harder or easier    cloud1 = Cloud()    cloud2 = Cloud()    cloud3 = Cloud()    ocean = Ocean()    scoreboard = Scoreboard()    friendSprites = pygame.sprite.Group(ocean, island, ship)    cloudSprites = pygame.sprite.Group(cloud1, cloud2, cloud3)    scoreSprite = pygame.sprite.Group(scoreboard)    clock = pygame.time.Clock()    #A - Action (broken into ALTER steps)    #A - Assign values to key variables    keepGoing = True    #L - Set up main loop    while keepGoing:        #T - Timer to set frame rate        clock.tick(30)        pygame.mouse.set_visible(False)        #E - Event handling        for event in pygame.event.get():            if event.type == pygame.QUIT:                keepGoing = False                #check collisions                if ship.rect.colliderect(island.rect):                        island.reset()            scoreboard.score += 100        hitClouds = pygame.sprite.spritecollide(ship, cloudSprites, False)        if hitClouds:                       scoreboard.lives -= 1            if scoreboard.lives <= 0:                keepGoing = False            for theCloud in hitClouds:                theCloud.reset()                friendSprites.update()        cloudSprites.update()        scoreSprite.update()                friendSprites.draw(screen)        cloudSprites.draw(screen)        scoreSprite.draw(screen)        #R - Refresh display        pygame.display.flip()            #return mouse cursor    pygame.mouse.set_visible(True)     return scoreboard.score    def instructions(score):    pygame.display.set_caption("Pirates v 1.0 by Jaime!")    ship = Ship()    ocean = Ocean()        allSprites = pygame.sprite.Group(ocean, ship)    insFont = pygame.font.SysFont(None, 50)    insLabels = []    instructions = (    "Pirates.     Last score: %d" % score ,    "Instructions:  You are a Pirate,",    "delivering terror to the islands.",    "",    "Sail over an island to plunder it,",    "but be careful not to sail too close",        "to the clouds. Your ship will fall ",    "apart if it is hit by lightning too",    "many times. Steer with the mouse.",    "",    "good luck!",    "",    "click to start, escape to quit..."    )        for line in instructions:        yellow = (255, 255, 0)        tempLabel = insFont.render(line, 1, yellow)        insLabels.append(tempLabel)    #A - Action (broken into ALTER steps)    #A - Assign values to key variables    keepGoing = True    clock = pygame.time.Clock()    pygame.mouse.set_visible(False)    #L - Set up main loop    while keepGoing:        #T - Timer to set frame rate        clock.tick(30)        #E - Event handling        for event in pygame.event.get():            if event.type == pygame.QUIT:                keepGoing = False                donePlaying = True            if event.type == pygame.MOUSEBUTTONDOWN:                keepGoing = False                donePlaying = False            elif event.type == pygame.KEYDOWN:                if event.key == pygame.K_ESCAPE:                    keepGoing = False                    donePlaying = True                 allSprites.update()        allSprites.draw(screen)        for i in range(len(insLabels)):            screen.blit(insLabels, (50, 30*i))        #R - Refresh display        pygame.display.flip()                pygame.mouse.set_visible(True)    return donePlaying        def main():    donePlaying = False    score = 0    while not donePlaying:        donePlaying = instructions(score)        if not donePlaying:            score = game()if __name__ == "__main__":    main()

""" spriteSprite.py     demonstrates a simple sprite - sprite    collision using rect's collision method    use mouse to move circle around and test for collisions"""    import pygame, randompygame.init()class Square(pygame.sprite.Sprite):    """ makes a box with a random starting         position and the given color.          To make a red square, use        redSquare = Square((255, 0, 0))                requires screen be predefined and import random """                   def __init__(self, color, screen):        pygame.sprite.Sprite.__init__(self)        self.image = pygame.Surface((50, 50))        self.image.fill(color)        self.rect = self.image.get_rect()        self.rect.centerx = random.randrange(0, screen.get_width())        self.rect.centery = random.randrange(0, screen.get_height())    class Circle(pygame.sprite.Sprite):    """ makes a blue circle that         follows the mouse. """            def __init__(self):        pygame.sprite.Sprite.__init__(self)        self.image = pygame.Surface((50, 50))        self.image.fill((255, 255, 255))        pygame.draw.circle(self.image, (0, 0, 255), (25, 25), 25, 0)        self.rect = self.image.get_rect()            def update(self):        self.rect.center = pygame.mouse.get_pos()class TransCircle(Circle):    """ extended collisionObjects circle with colorkey    transparency. """    def __init__(self):        Circle.__init__(self)        self.image.set_colorkey((255,255,255))        class Label(pygame.sprite.Sprite):    """ Label Class (simplest version)         Attributes:            font: any pygame font object            text: text to display            center: desired position of label center (x, y)    """    def __init__(self):        pygame.sprite.Sprite.__init__(self)        self.font = pygame.font.SysFont("None", 30)        self.text = ""        self.center = (320, 240)                    def update(self):        self.image = self.font.render(self.text, 1, (0, 0, 0))        self.rect = self.image.get_rect()        self.rect.center = self.centerdef main():    screen = pygame.display.set_mode((640, 480))    pygame.display.set_caption("sprite - to - sprite collision")        background = pygame.Surface(screen.get_size())    background.fill((255, 255, 255))    screen.blit(background, (0, 0))        lblOutput = Label()    lblOutput.center = (100, 50)    lblOutput.text = "Hi"        circle = Circle()    square = Square((0, 255, 0), screen)        allSprites = pygame.sprite.Group(square, circle, lblOutput)    keepGoing = True    clock = pygame.time.Clock()    pygame.mouse.set_visible(False)    while keepGoing:        clock.tick(30)        for event in pygame.event.get():            if event.type == pygame.QUIT:                keepGoing = False        # Use special colliderect() method of Rect object to test for collision        if circle.rect.colliderect(square.rect):            lblOutput.text = "Collision"        else:            lblOutput.text = "No collision"                    allSprites.clear(screen, background)        allSprites.update()        allSprites.draw(screen)                pygame.display.flip()    pygame.mouse.set_visible(True)if __name__ == "__main__":    main()

""" spriteGroup.py     shows how to check for a    collision between a sprite and     a group    Movable circle coming in really handy now    to test for collisions    Also using sprite.spritecollide() instead of rect.colliderect()    This one uses TransCircle instead of Circle for transparent collisions!    Jaime Moreno    4/7/07    """    import pygame, randompygame.init()class Square(pygame.sprite.Sprite):    """ makes a box with a random starting         position and the given color.          To make a red square, use        redSquare = Square((255, 0, 0))                requires screen be predefined and import random """                   def __init__(self, color, screen):        pygame.sprite.Sprite.__init__(self)        self.image = pygame.Surface((50, 50))        self.image.fill(color)        self.rect = self.image.get_rect()        self.rect.centerx = random.randrange(0, screen.get_width())        self.rect.centery = random.randrange(0, screen.get_height())    class Circle(pygame.sprite.Sprite):    """ makes a blue circle that         follows the mouse. """            def __init__(self):        pygame.sprite.Sprite.__init__(self)        self.image = pygame.Surface((50, 50))        self.image.fill((255, 255, 255))        pygame.draw.circle(self.image, (0, 0, 255), (25, 25), 25, 0)        self.rect = self.image.get_rect()            def update(self):        self.rect.center = pygame.mouse.get_pos()class TransCircle(Circle):    """ extended collisionObjects circle with colorkey    transparency. """    def __init__(self):        Circle.__init__(self)        self.image.set_colorkey((255,255,255))        class Label(pygame.sprite.Sprite):    """ Label Class (simplest version)         Attributes:            font: any pygame font object            text: text to display            center: desired position of label center (x, y)    """    def __init__(self):        pygame.sprite.Sprite.__init__(self)        self.font = pygame.font.SysFont("None", 30)        self.text = ""        self.center = (320, 240)                    def update(self):        self.image = self.font.render(self.text, 1, (0, 0, 0))        self.rect = self.image.get_rect()        self.rect.center = self.centerdef main():    screen = pygame.display.set_mode((640, 480))    pygame.display.set_caption("colliding with a group")        background = pygame.Surface(screen.get_size())    background.fill((255, 255, 255))    screen.blit(background, (0, 0))        lblOutput = Label()    lblOutput.text = "Hi"    lblOutput.center = (100, 50)        circle = Circle()    # make 10 red squares at random locations    squares = []    for i in range(10):        square = Square((255, 0, 0), screen)        squares.append(square) # add square to list            basicSprites = pygame.sprite.Group(circle, lblOutput)    squareGroup = pygame.sprite.Group(squares)        keepGoing = True    clock = pygame.time.Clock()    while keepGoing:        clock.tick(30)        for event in pygame.event.get():            if event.type == pygame.QUIT:                keepGoing = False                    if pygame.sprite.spritecollide(circle, squareGroup, False): # set to True to have object die            lblOutput.text = "Collision"        else:            lblOutput.text = "No collision"                    squareGroup.clear(screen, background)        basicSprites.clear(screen, background)                squareGroup.update()        basicSprites.update()                squareGroup.draw(screen)        basicSprites.draw(screen)            pygame.display.flip()        if __name__ == "__main__":    main()