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Sorry if this is really specific, but I can't figure this out for the life of me. I have created a version of the game LightsOut, with a grid representing the board. As you can see, I have the grid being drawn twice...? It flickers with mouse movement, and I'm trying to find a way to have that stop. Anyone have ideas? Thanks. Here's the code in question:

size = 5

grid = []
for x in range(5):
    column = []
    for y in range(5):
        column.append(white)
    grid.append(column)

#####################################

drawing = True

while drawing:

    # MAKES THE GRID #

    for a in range(size + 1):
        for b in range(size + 1):
            r = pygame.Rect(a * 100, b * 100, 100, 100)
            border = 0
            if grid[a][b] == (0, 0, 0):
                border = 5
            pygame.draw.rect(w, grid[a][b], r, border)

    for event in pygame.event.get():

        if event.type == pygame.MOUSEBUTTONDOWN:

            # INVERTS BOXES #

            (x, y) = pygame.mouse.get_pos()
            grid_x = int(x / 100)
            grid_y = int(y / 100)
            invert(grid, (grid_x, grid_y))

            pygame.display.flip()

    ############

        for grid_x in range(size + 1):
            for grid_y in range(size + 1):
                rect = pygame.Rect(grid_x * 100, grid_y * 100, 100, 100)
                pygame.draw.rect(w, (0, 0, 0), rect, 5)
                pygame.display.flip()
SkyviewPythonPerson
  • 1
  • don't use `pygame.display.flip()` inside `for` loop - use it only once at the end. – furas Nov 23 '17 at 20:19
  • you have wrong indentions and loop `for grid_x` is inside `for event` - so ` `for grid_x` will be executed only if you get some event, for example when you move mouse. – furas Nov 23 '17 at 20:34

0 Answers0