import pygame, time finished = False # define function for updating the display contents def updateDisplay(): # show the reset button if the sorting has completed if finished: gameDisplay.blit(buttonReset, buttonResetRect) # if the sorting hasn't completed else: # wipe the screen gameDisplay.fill(black) # if the sorting algorithm to be used has been been defined as 1, 2 or 3 if sortingAlgorithm != 0: # draw one rect object for each item in the list for loop in range(0,len(numberList)): pygame.draw.rect(gameDisplay, colourList[numberList[loop]-1], [loop*20, 90, 20, 20]) # display current time taken in top left timeText = font.render("{:.1f} seconds".format(time.time() - startTime), True, white) timeTextRect = timeText.get_rect() timeTextRect.top = 10 timeTextRect.left = 10 gameDisplay.blit(timeText, timeTextRect) # if the sorting algorithm hasn't yet been chosen, show the buttons for doing so else: gameDisplay.blit(buttonSelective, buttonSelectiveRect) gameDisplay.blit(buttonInsertion, buttonInsertionRect) gameDisplay.blit(buttonBubble, buttonBubbleRect) # redisplay window pygame.display.update() # adjust for desired framerate clock.tick(fps) # define function for checking whether the user wants to exit the program def checkQuit(): for event in pygame.event.get(): # allow exit using window exit button (the red cross) if event.type == pygame.QUIT: pygame.quit() quit() # allow keyboard interrupt (with escape key) if event.type == pygame.KEYDOWN: if event.key == pygame.K_ESCAPE: pygame.quit() quit() # define function for checking if any start buttons have been pressed def checkStartButtons(): for event in pygame.event.get(): if event.type == pygame.MOUSEBUTTONDOWN: # checks if mouse position is over selective sort button if buttonSelectiveRect.collidepoint(event.pos): # prints current location of mouse print('Selective button was pressed at {0}'.format(event.pos)) return 1 # checks if mouse position is over insertion sort button elif buttonInsertionRect.collidepoint(event.pos): # prints current location of mouse print('Insertion button was pressed at {0}'.format(event.pos)) return 2 # checks if mouse position is over bubble sort button elif buttonBubbleRect.collidepoint(event.pos): # prints current location of mouse print('Bubble button was pressed at {0}'.format(event.pos)) return 3 # define function for checking if the reset button has been pressed def checkResetButton(): for event in pygame.event.get(): if event.type == pygame.MOUSEBUTTONDOWN: # checks if mouse position is over the reset button if buttonResetRect.collidepoint(event.pos): # prints current location of mouse print('Reset button was pressed at {0}'.format(event.pos)) # returns value for use in the variable finished return False # returns value for use in the variable finished return True # initialise PyGame pygame.init() # define font for usage with text font = pygame.font.Font("Roboto-Regular.ttf", 32) # define some basic colours, for easier referencing later on black = (0, 0, 0) white = (255, 255, 255) # define clock, to allow framerate alteration clock = pygame.time.Clock() # list of colours, in colour order colourList = [(239, 69, 69), (239, 86, 69), (239, 103, 69), (239, 120, 69), (239, 137, 69), (239, 154, 69), (239, 171, 69), (239, 188, 69), (239, 205, 69), (239, 222, 69), (239, 239, 69), (222, 239, 69), (205, 239, 69), (188, 239, 69), (171, 239, 69), (154, 239, 69), (137, 239, 69), (120, 239, 69), (103, 239, 69), (86, 239, 69), (69, 239, 69), (69, 239, 86), (69, 239, 103), (69, 239, 120), (69, 239, 137), (69, 239, 154), (69, 239, 171), (69, 239, 188), (69, 239, 205), (69, 239, 222), (69, 239, 239), (69, 222, 239), (69, 205, 239), (69, 188, 239), (69, 171, 239), (69, 154, 239), (69, 137, 239), (69, 120, 239), (69, 103, 239), (69, 86, 239), (69, 69, 239), (86, 69, 239), (103, 69, 239), (120, 69, 239), (137, 69, 239), (154, 69, 239), (171, 69, 239), (188, 69, 239), (205, 69, 239), (222, 69, 239), (239, 69, 239), (239, 69, 222), (239, 69, 205), (239, 69, 188), (239, 69, 171), (239, 69, 154), (239, 69, 137), (239, 69, 120), (239, 69, 103), (239, 69, 86)] # list of numbers to be sorted # two lists are used so that the original one is retained whilst the other is altered, allowing resetting at the end of the program originalNumberList = [30,4,5,6,36,38,37,32,17,19,8,10,56,50,20,13,14,40,58,21,43,51,1,31,41,16,60,22,34,28,9,12,42,2,27,18,26,47,39,24,57,23,46,53,15,25,7,33,49,59,35,44,45,11,54,29,55,52,3,48] numberList = originalNumberList.copy() # frame rate of sorting visualisation fps = 25 # define which sorting algorithm to use (1, 2 and 3 are the only valid options, for selective, insertion and bubble, respectively) sortingAlgorithm = 0 # define height and width of display display_width = len(numberList)*20 display_height = 200 # define surface gameDisplay = pygame.display.set_mode((display_width,display_height)) # set window title pygame.display.set_caption("Sorting Algorithms") # define buttons for choosing sorting algorithm # selective sort button buttonSelective = font.render("Selective", True, white) buttonSelectiveRect = buttonSelective.get_rect() buttonSelectiveRect.center = (display_width / 2 - 200, display_height / 2) # insertion sort button buttonInsertion = font.render("Insertion", True, white) buttonInsertionRect = buttonInsertion.get_rect() buttonInsertionRect.center = (display_width / 2, display_height / 2) # bubble sort button buttonBubble = font.render("Bubble", True, white) buttonBubbleRect = buttonBubble.get_rect() buttonBubbleRect.center = (display_width / 2 + 200, display_height / 2) # define button for resetting the program buttonReset = font.render("Reset", True, white) buttonResetRect = buttonBubble.get_rect() buttonResetRect.center = (display_width / 2, display_height / 2 + 60) # update display contents updateDisplay() # run until manual exit while True: # selection sort if sortingAlgorithm == 1: # set start time, for use with on-screen timer startTime = time.time() swapPosition = 0 swapData = 0 # find the smallest number in the list until it is fully sorted for i in range(0, len(numberList)): swapPosition = i for j in range(i, len(numberList)): # find the smallest number if numberList[j] < numberList[swapPosition]: swapPosition = j # swap the smallest number with the number in its new position swapData = numberList[i] numberList[i] = numberList[swapPosition] numberList[swapPosition] = swapData # check if the user wants to quit checkQuit() # update display contents updateDisplay() # record that the sorting has completed finished = True sortingAlgorithm = 0 # insertion sort elif sortingAlgorithm == 2: # set start time, for use with on-screen timer startTime = time.time() # for each item in the list for i in range(0, len(numberList)): j = 0 # find its correct position while numberList[i] > numberList[j]: j += 1 # put it in its correct position in the list numberList.insert(j, numberList.pop(i)) # check if the user wants to quit checkQuit() # update display contents updateDisplay() # record that the sorting has completed finished = True sortingAlgorithm = 0 elif sortingAlgorithm == 3: # set start time, for use with on-screen timer startTime = time.time() swapped = True while swapped: swapped = False # for each item in the list for index, item in enumerate(numberList): swappedInternal = False # if the numbers are in the wrong position, swap them around if index != len(numberList) - 1 and item > numberList[index + 1]: numberList[index] = numberList[index + 1] numberList[index + 1] = item swapped = True swappedInternal = True # check if the user wants to quit checkQuit() # if items have been swapped, update display contents if swappedInternal: updateDisplay() # record that the sorting has completed finished = True sortingAlgorithm = 0 # if sorting has completed elif finished: # update display contents updateDisplay() # check if the reset button has been pressed finished = checkResetButton() # ensure reset button and exiting are both enabled clock.tick(fps) # check if the user wants to quit checkQuit() # ensure reset button and exiting are both enabled clock.tick(fps) # if reset button has been pressed, reset the list if not finished: numberList = originalNumberList.copy() # update display contents updateDisplay() else: # check if the user wants to quit checkQuit() # check if any of the start buttons have been pressed sortingAlgorithm = checkStartButtons()