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main.py
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main.py
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from configuration import WIDTH
from grid import *
from astar import algorithm
WIN = pygame.display.set_mode((WIDTH, WIDTH))
pygame.display.set_caption("A* Path Finding Algorithm")
def get_clicked_pos(pos, rows, width):
gap = width // rows
y, x = pos
row = y // gap
col = x // gap
return row, col
def run(win, width):
ROWS = 50
grid = make_grid(ROWS, width)
start = None
end = None
run = True
while run:
draw(win, grid, ROWS, width)
for event in pygame.event.get():
if event.type == pygame.QUIT:
run = False
if pygame.mouse.get_pressed()[0]: # LEFT
pos = pygame.mouse.get_pos()
row, col = get_clicked_pos(pos, ROWS, width)
spot = grid[row][col]
if not start and spot != end:
start = spot
start.make_start()
elif not end and spot != start:
end = spot
end.make_end()
elif spot != end and spot != start:
spot.make_barrier()
elif pygame.mouse.get_pressed()[2]: # RIGHT
pos = pygame.mouse.get_pos()
row, col = get_clicked_pos(pos, ROWS, width)
spot = grid[row][col]
spot.reset()
if spot == start:
start = None
elif spot == end:
end = None
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_SPACE and start and end:
for row in grid:
for spot in row:
spot.update_neighbors(grid)
algorithm(lambda: draw(win, grid, ROWS, width), grid, start, end)
if event.key == pygame.K_c:
start = None
end = None
grid = make_grid(ROWS, width)
pygame.quit()
if __name__ == "__main__":
run(WIN, WIDTH)