index.py

import os
import neat
import pygame
from bird import Bird
from pipe import Pipe
from base import Base
from utils import draw_window, WIN_WIDTH, WIN_HEIGHT, GEN

def main(genomes, config):
    global GEN
    GEN += 1
    nets = []
    ge = []
    birds = []

    for _, g in genomes:
        net = neat.nn.FeedForwardNetwork.create(g, config)
        nets.append(net)
        birds.append(Bird(230, 350))
        g.fitness = 0
        ge.append(g)

    base = Base(730)
    pipes = [Pipe(600)]
    score = 0

    win = pygame.display.set_mode((WIN_WIDTH, WIN_HEIGHT))
    clock = pygame.time.Clock()
    run = True

    while run:
        clock.tick(30)
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                run = False
                pygame.quit()
                quit()

        pipe_ind = 0
        if len(birds) > 0:
            if len(pipes) > 1 and birds[0].x > pipes[0].x + pipes[0].PIPE_TOP.get_width():
                pipe_ind = 1
        else:
            run = False
            break

        for x, bird in enumerate(birds):
            bird.move()
            ge[x].fitness += 0.1

            output = nets[x].activate((bird.y, abs(bird.y - pipes[pipe_ind].height), abs(bird.y - pipes[pipe_ind].bottom)))

            if output[0] > 0.5:
                bird.jump()

        add_pipe = False
        rem = []
        for pipe in pipes:
            for x, bird in enumerate(birds):
                if pipe.collide(bird):
                    ge[x].fitness -= 1
                    birds.pop(x)
                    nets.pop(x)
                    ge.pop(x)

                if not pipe.passed and pipe.x < bird.x:
                    pipe.passed = True
                    add_pipe = True

            if pipe.x + pipe.PIPE_TOP.get_width() < 0:
                rem.append(pipe)

            pipe.move()

        if add_pipe:
            score += 1
            for g in ge:
                g.fitness += 5
            pipes.append(Pipe(600))

        for r in rem:
            pipes.remove(r)

        for x, bird in enumerate(birds):
            if bird.y + bird.img.get_height() >= 730 or bird.y < 0:
                birds.pop(x)
                nets.pop(x)
                ge.pop(x)

        base.move()
        draw_window(win, birds, pipes, base, score, GEN)


def run(conf_path):
    config = neat.config.Config(neat.DefaultGenome, neat.DefaultReproduction, neat.DefaultSpeciesSet,
                                neat.DefaultStagnation, conf_path)
    p = neat.Population(config)
    p.add_reporter(neat.StdOutReporter(True))
    stats = neat.StatisticsReporter()
    p.add_reporter(stats)

    winner = p.run(main, 50)


if __name__ == '__main__':
    local_dir = os.path.dirname(__file__)
    config_path = os.path.join(local_dir, 'config-feedforward.txt')
    run(config_path)