下面是我的输入输出和适应度函数。蛇的学习速度很慢，而且似乎停滞不前，另外当蛇与食物碰撞时，它会从基因组中删除，这没有任何意义，因为碰撞中没有指定。任何投入将不胜感激
for x, s in enumerate(snakes):
# inserting new snake head and deleting the tale for movement
# inputs
s.x = s.snake_head[0]
s.y = s.snake_head[1]
snakeheadBottomDis = win_h - s.y
snakeheadRightDis = win_w - s.x
snake_length = len(s.snake_position)
snakefoodDistEuclidean = math.sqrt((s.x - food.x) ** 2 + (s.y - food.y) ** 2)
snakefoodDisManhattan = abs(s.x - food.x) + abs(s.y - food.y)
xdis = s.Xdis()
ydis = s.Ydis()
s.dis_list1.append(snakefoodDistEuclidean)
s.dis_list2.append(snakefoodDisManhattan)
s.dis_list3.append(s.Xdis())
s.dis_list4.append(s.Ydis())
s.hunger_list.append(s.hunger)
#print('Euclidean: ', dis_list1[-1])
#print('Manhattan: ', dis_list2[-1])
#print('X distance from Wall: ', dis_list3[-1])
#print('Y distance from Wall: ', dis_list4[-1])
output = nets[snakes.index(s)].activate((s.hunger, s.x, s.y, food.x, food.y, snakeheadBottomDis,
snakeheadRightDis, snake_length, xdis,ydis,
snakefoodDisManhattan, snakefoodDistEuclidean,s.dis_list1[-1],s.dis_list1[-2],
s.dis_list2[-1],s.dis_list2[-2],s.dis_list3[-1],s.dis_list3[-2],
s.dis_list4[-1],s.dis_list4[-2],s.hunger_list[-1],s.hunger_list[-2]))
#snake moving animation
s.snake_position.insert(0, list(s.snake_head))
s.snake_position.pop()
s.hunger -= 1
# Checking distance Euclidean and Manhattan current and last
if s.dis_list1[-1] > s.dis_list1[-2]:
ge[x].fitness -= 1
if s.dis_list1[-1] < s.dis_list1[-2]:
ge[x].fitness += 0.5
if s.dis_list1[-1] > s.dis_list2[-2]:
ge[x].fitness -= 1
if s.dis_list1[-1] < s.dis_list2[-2]:
ge[x].fitness += 0.5
#checking hunger number and if its decreasing
if s.hunger_list[-1] < s.hunger_list[-2]:
ge[x].fitness -= 0.1
# move right
if output[0] >= 0 and output[1] < 0 and output[2] < 0 and output[
3] < 0:
#and s.x < win_w - s.width and s.y > 0 + s.height:
# ge[x].fitness += 0.5
s.move_right()
# move left
if output[1] >= 0 and output[0] < 0 and output[2] < 0 and output[
3] < 0:
#and s.x < 500 - s.width and s.y > 0 + s.height:
#ge[x].fitness += 0.5
s.move_left()
# move down
if output[2] >= 0 and output[1] < 0 and output[0] < 0 and output[
3] < 0:
#and s.x < 500 - s.width and s.y > 0 + s.height:
# ge[x].fitness += 0.5
s.move_down()
# move up
if output[3] >= 0 and output[1] < 0 and output[2] < 0 and output[
3] < 0:
#and s.x < 500 - s.width and s.y > 0 + s.height:
# ge[x].fitness += 0.5
s.move_up()
#adding more fitness if axis aligns
if s.snake_head[0] == food.x:
ge[x].fitness += 0.1
if s.snake_head[1] == food.x:
ge[x].fitness += 0.1
# checking the activation function tanh
# print ('output 0: ', output[0])
# print('output 1: ', output[1])
# print ('output 2: ', output[1])
# print ('output 3: ', output[1])
# snake poping on other side of screen if screen limit reached
if s.snake_head[0] >= win_w - s.width:
s.snake_head[0] = 12
if s.snake_head[0] <= 11 + s.width:
s.snake_head[0] = win_w - s.width - 1
if s.snake_head[1] >= win_h - s.height:
s.snake_head[1] = s.height + 15
if s.snake_head[1] <= 11 + s.height:
s.snake_head[1] = win_h - s.height - 1
head = s.snake_position[0]
#s.x < 0 + s.width or s.x > win_w - s.width or s.y < 0 + s.height or \
#s.y > win_h - s.height or
#if run into self you die
if head in s.snake_position[1:]:
ge[x].fitness -= 10
snakes.pop(x)
nets.pop(x)
ge.pop(x)
#if hunger reaches 0 you die
if s.hunger == 0:
ge[x].fitness -= 5
snakes.pop(x)
nets.pop(x)
ge.pop(x)
#if snake collides with food award fitness
if s.getRec().colliderect(food.getRec()):
ge[x].fitness += 100
s.hunger = 100
score += 1
s.snake_position.insert(0, list(s.snake_head))
food.y = random.randint(0 + 24, 500 - 24)
food.x = random.randint(0 + 24, 500 - 24)
# print(s.hunger)