Hello, I am new to Python and graphics programming in general. At present I am messing around with creating grids as practice, and I am having problems with getting pygame to put objects on top of the surface window.
Below is my code with comments. I reckon that the problem may be to do with the blit function but I am unsure. Any help would be appreciated. Also, the Python shell does not highlight any exceptions or errors, but the program does not run.
import sys, random, pygame
from pygame.locals import *
def main():
#settings
boardDims = (20,20) #number of cells on board
#pygame settings
cellDims = (20,20) #number of pixels on cells
framerate = 50
colours = {0:(0,0,0), 1:(255,255,255)}
#pygame
pygame.init()
#sets x and y pixels for the window
dims = (boardDims[0] * cellDims[0],
boardDims[1] * cellDims[1])
#sets window, background, and framrate
screen = pygame.display.set_mode(dims)
background = screen.convert()
clock = pygame.time.Clock()
#create new board
board = {}
#iterates over x and y axis of the window
for x in range(boardDims[0]):
for y in range(boardDims[1]):
board[(x,y)] = 0 #sets whole board to value 0
board[(1,1)] = 1 #sets one square at co-ordinates x=1,y=1 to cell
# value 1
return board
running = 1
while running:
# 1 PYGAME
#get input
for event in pygame.event.get():
if event.type == QUIT or \
(event.type == KEYDOWN and event.key == K_ESCAPE):
running = 0
return
#link pygames clock to set framerate
clock.tick(framerate)
for cell in board:
#adds cells dimensions and co-ordinates to object rectangle
rectangle = (cell[0]*cellDims[0], cell[1]* cellDims[1],
cellDims[0], cellDims[1])
#pygame draws the rectabgle on the background using the relevant
#colour and dimensions and co-ordinates outlined in 'rectangle'
square = pygame.draw.rect(background, colours[board[cell]],
rectangle)
#blits and displays object on the background
background.blit(square)
screen.blit(background, (0,0))
pygame.display.flip()
if __name__ == "__main__":
main()
