import pygame

## Reads in a file of scores where each line has the format
## "name:score" and returns a list of lists: [[name, score], ...].
def read_scorefile (filename):
    scores = []

    f = open(filename, "r")

    line = f.readline()
    while line != "":
        line = line.strip()
        linelist = line.split(":")
        scores = scores + [[linelist[0], int(linelist[1])]]
        line = f.readline()
    
    f.close()

    return scores

## Takes a list of score entries of the form [[name, score], ...]
## and writes them to a file where each line is of the form
## "name:score".
def write_scorefile (filename, scores):
    f = open(filename, "w")
    for entry in scores:
        f.write(entry[0]+":"+str(entry[1])+"\n")
    f.close()

## Returns the index of the lowest scorer in the list of scorers.
def lowest_score (scores):
    min_idx = 0
    for index in range(0, len(scores)):
        if scores[index][1] < scores[min_idx][1]:
            min_idx = index
    return min_idx
    

def run_game():

    name = raw_input("Please type in your name: ")

    ## Initialize the pygame submodules and set up the display window.
    
    pygame.init()

    width = 640
    height = 480
    screen = pygame.display.set_mode((width,height))

    ## Load resources
    balloon = pygame.image.load("red_balloon.gif")
    balloon = balloon.convert()

    balloon2 = pygame.image.load("green_balloon.gif")
    balloon2 = balloon2.convert()

    pop_sound = pygame.mixer.Sound("pop.wav")

    # NEW: We are loading a font
    myFont = pygame.font.Font(None,30)

    ## Initialize game objects.

    # initialize the balloons' positions and speeds
    b_red = [100, 100, 0.2, 0.2, balloon]
    b_green = [300, 300, 0.1, 0.2, balloon2]
    balloons = [b_red, b_green]
    w = balloon.get_width()
    h = balloon.get_height()

    # initialize the score
    score = 0
    scorefile = "hiscores.txt"

    scores = read_scorefile (scorefile)
    print scores

    clock = pygame.time.Clock()

    dead = False

    ## GAME LOOP starts
    keepGoing = True
    while (keepGoing):

        ## Handle events
        
        for event in pygame.event.get():
            
            if event.type == pygame.QUIT:
                keepGoing = False


            # If the player clicks into the red balloon, he gets a
            # point. The game also plays a popping sound and the
            # balloon starts moving a bit faster.
            # If the player clicks outside the red balloon, he dies.
            elif not dead and event.type == pygame.MOUSEBUTTONDOWN:

                mouse_x, mouse_y = pygame.mouse.get_pos()

                if mouse_x >= b_red[0] and mouse_x <= b_red[0]+w and mouse_y >= b_red[1] and mouse_y <= b_red[1]+h:
                    pop_sound.play()
                    score = score + 1
                    b_red[2] = 1.1 * b_red[2]
                    b_red[3] = 1.1 * b_red[3]
                else:
                    dead = True
                    if len(scores) < 5:
                        scores += [[name, score]]
                    else:
                        low_scorer_idx = lowest_score(scores)
                        if scores[low_scorer_idx][1] < score:
                            scores[low_scorer_idx] = [name, score]
                    print scores

                    
        ## Update game objects.

        dt = clock.tick()        
                    
        # Update the positions and speeds of the balloons.
        if not dead:
            for b in balloons:

                b[0] = b[0] + dt * b[2]
                if (b[0] < 0):
                    b[0] = 0
                    b[2] = - b[2]
                elif (b[0] > width - w):
                    b[0] = width - w
                    b[2] = - b[2]
        
                b[1] = b[1] + dt * b[3]
                if (b[1] < 0):
                    b[1] = 0
                    b[3] = - b[3]
                elif (b[1] > height - h):
                    b[1] = height - h
                    b[3] = - b[3]



        ## Draw picture and update display.
        
        screen.fill(pygame.color.Color("darkblue"))

        # score
        x = 10
        y = 10
        label = myFont.render("Your score: "+str(score), True, pygame.color.Color("magenta"))
        screen.blit(label, (x,y))

        # draw high scores
        for entry in scores:
            y += 30
            label = myFont.render(entry[0]+": "+str(entry[1]), True, pygame.color.Color("magenta"))
            screen.blit(label, (x, y))
        

        # balloon images
        screen.blit(b_red[4],(b_red[0],b_red[1]))
        screen.blit(b_green[4],(b_green[0],b_green[1]))

        # game over message
        if dead:
            label = myFont.render("Sorry, "+name+"! Game over!", True, pygame.color.Color("magenta"))

            screen.blit(label, ((width-label.get_width())/2,height/2-50))

            label = myFont.render("You didn't click on the red balloon.", True, pygame.color.Color("magenta"))
            screen.blit(label, ((width-label.get_width())/2,height/2-25))


        pygame.display.update()


    ## GAME LOOP ends
    myFont = None

    write_scorefile(scorefile, scores)
    
    pygame.quit()



run_game()