我創建了一個簡單的模擬來展示進化。它通過一個簡單的視窗作業，該視窗包含許多代表單細胞生物的方塊。螢屏看起來像這樣：
單細胞生物（為簡潔起見稱為變形蟲）隨機移動。如果它們與另一個變形蟲發生碰撞，它們就會產生后代。但是，為了防止它們無限繁殖，我引入了年齡測量。變形蟲必須達到一定的年齡才能繁殖，一旦達到，他們的年齡就會重置為 1。
現在是進化部分。如您所見，變形蟲有不同的顏色。這代表通過繁殖傳遞給后代的“基因”（有可能發生突變，由一個名為 maturingSpeed 的常數控制，我將其設定得非常高以提高進化速度）。它被稱為成熟速度，它控制著變形蟲衰老的速度，這意味著具有更高成熟速度的變形蟲能夠更快地繁殖并傳遞它們的基因。這樣，它們應該通過自然選擇逐漸進化，因此所有變形蟲都具有非常高的成熟速度。高 maturingSpeed 轉化為螢屏上更亮的顏色。
還有一件事我要提一下，那就是每個變形蟲的生命倒計時。它從 10000 開始，每次更新變形蟲時都會減一。這是為了逐漸殺死舊的變形蟲，同時提高進化速度并使其更逼真。
我的問題是，在變形蟲全部進化到獲得高成熟速度（我擁有的最高速度約為 65%）之前，它們變得太多并且模擬開始變慢，因為它難以加載它們。我需要一種方法來使變形蟲在產生更多變形蟲時更快地死亡。如果它們超過一定數量，我試圖將它們剔除，或者根據變形蟲的數量增加它們的倒計時率，但是所有這些方法都會導致它們最終停止繁殖并由于某種原因而死亡。我現在已經從我的代碼中洗掉了這些部分，因為它們不起作用，但如果需要我可以再次添加它們。
我的源代碼：
import pygame
import random
import time
import itertools
from pygame.locals import (
QUIT
)
pygame.init()
SCREEN_WIDTH = 500
SCREEN_HEIGHT = 500
screen = pygame.display.set_mode([500, 500])
amoebas = pygame.sprite.Group()
all_sprites = pygame.sprite.Group()
idList = []
mutationConstant = 254
class Amoeba(pygame.sprite.Sprite):
id_iter = itertools.count()
def __init__(self, maturingSpeed, x, y):
super(Amoeba, self).__init__()
self.id = 'amoeba' str(next(Amoeba.id_iter))
idList.append(self.id)
self.surf = pygame.Surface((10,10))
if maturingSpeed <= 0:
maturingSpeed = 1
elif maturingSpeed >= 255:
maturingSpeed = 254
print(maturingSpeed)
self.surf.fill((maturingSpeed, 0, 0))
self.rect = self.surf.get_rect(
center=(
x,
y,
)
)
self.speed = 2
self.age = 1
self.maturingSpeed = int(maturingSpeed)
self.life = 9999
def update(self):
if self.rect.left <= 0:
direction = 1
elif self.rect.right >= SCREEN_WIDTH:
direction = 2
elif self.rect.top <= 0:
direction = 3
elif self.rect.bottom >= SCREEN_HEIGHT:
direction = 4
else:
direction = random.randint(1, 4)
if direction == 1:
self.rect.move_ip(self.speed, 0)
elif direction == 2:
self.rect.move_ip(-self.speed, 0)
elif direction == 3:
self.rect.move_ip(0, self.speed)
elif direction == 4:
self.rect.move_ip(0, -self.speed)
self.life = self.life - 1
if self.life <= 0:
self.kill()
modMaturingSpeed = self.maturingSpeed / 1240
self.age = self.age (1 * modMaturingSpeed)
@classmethod
def collide(cls):
global collisionSuccess
collisionSuccess = False
global posList
posList = [[amoeba.rect.left, amoeba.rect.bottom] for amoeba in amoebas]
length = len(posList)
for i in range(length):
for amoeba in amoebas:
if amoeba.id == str(idList[i]):
ageOne = getattr(amoeba, 'age')
for h in range(i 1, length):
for amoeba in amoebas:
if amoeba.id == str(idList[h]):
ageTwo = getattr(amoeba, 'age')
OneX = int(posList[i][0])
OneY = int(posList[i][1])
TwoX = int(posList[h][0])
TwoY = int(posList[h][1])
if ageOne >= 100 and ageTwo >= 100:
if (OneX < TwoX 10 and OneX 10 > TwoX
and OneY < TwoY 10 and 10 OneY > TwoY):
for amoeba in amoebas:
if amoeba.id == str(idList[i]):
setattr(amoeba, 'age', 1)
pOMSinitial = int(getattr(amoeba, 'maturingSpeed'))
for amoeba in amoebas:
if amoeba.id == str(idList[h]):
setattr(amoeba, 'age', 1)
pTMSinitial = int(getattr(amoeba, 'maturingSpeed'))
locationX = OneX random.randint(-10, 10)
locationY = OneY random.randint(-10, 10)
if pOMSinitial >= pTMSinitial:
pOMSfinal = pOMSinitial mutationConstant
pTMSfinal = pTMSinitial - mutationConstant
newMaturingSpeed = random.randint(pTMSfinal, pOMSfinal)
else:
pOMSfinal = pOMSinitial - mutationConstant
pTMSfinal = pTMSinitial mutationConstant
newMaturingSpeed = random.randint(pOMSfinal, pTMSfinal)
collisionSuccess = True
return cls(newMaturingSpeed, locationX, locationY)
screen.fill((255, 255, 255))
for i in range(15):
amoebaname = Amoeba(random.randint(100, 150), random.randint(0, SCREEN_WIDTH), random.randint(0, SCREEN_HEIGHT))
amoebas.add(amoebaname)
all_sprites.add(amoebaname)
p = 0
while True:
ageArray = [amoeba.age for amoeba in amoebas]
if p == 1000:
print(amoebas)
five = 0
four = 0
three = 0
two = 0
one = 0
for amoeba in amoebas:
if amoeba.maturingSpeed >= 200:
five = five 1
elif amoeba.maturingSpeed >=150:
four = four 1
elif amoeba.maturingSpeed >= 100:
three = three 1
elif amoeba.maturingSpeed >= 50:
two = two 1
else:
one = one 1
total = one two three four five
DivFive = five / total
DivFour = four / total
DivThree = three / total
DivTwo = two / total
DivOne = one / total
print(DivFive, DivFour, DivThree, DivTwo, DivOne)
p = 0
else:
p = p 1
time.sleep(0.0000001)
screen.fill((255, 255, 255))
for event in pygame.event.get():
if event.type == QUIT:
break
amoebas.update()
amoebaname = Amoeba.collide()
if collisionSuccess == True:
amoebas.add(amoebaname)
all_sprites.add(amoebaname)
for entity in all_sprites:
screen.blit(entity.surf, entity.rect)
pygame.display.flip()
pygame.quit()
uj5u.com熱心網友回復：
太多的嵌套回圈和不需要的資料結構。我做了一些清理，現在速度更快了。而且突變常數似乎高得離譜。我將值從更改254為25。
import pygame
import random
import time
import itertools
from pygame.locals import (
QUIT
)
SCREEN_WIDTH = 500
SCREEN_HEIGHT = 500
MUTATION_CONSTANT = 25
pygame.init()
screen = pygame.display.set_mode([SCREEN_WIDTH, SCREEN_HEIGHT])
amoebas = pygame.sprite.Group()
class Amoeba(pygame.sprite.Sprite):
id_iter = itertools.count()
def __init__(self, maturing_speed, x, y):
super().__init__()
self.id = 'amoeba' str(next(Amoeba.id_iter))
self.surf = pygame.Surface((10, 10))
self.maturing_speed = min(max(maturing_speed, 1), 254)
self.surf.fill((self.maturing_speed, 0, 0))
self.rect = self.surf.get_rect(center=(x, y,))
self.speed = 2
self.age = 1
self.life = 9999
def update(self):
if self.rect.left <= 0:
direction = 1
elif self.rect.right >= SCREEN_WIDTH:
direction = 2
elif self.rect.top <= 0:
direction = 3
elif self.rect.bottom >= SCREEN_HEIGHT:
direction = 4
else:
direction = random.randint(1, 4)
if direction == 1:
self.rect.move_ip(self.speed, 0)
elif direction == 2:
self.rect.move_ip(-self.speed, 0)
elif direction == 3:
self.rect.move_ip(0, self.speed)
elif direction == 4:
self.rect.move_ip(0, -self.speed)
self.life = self.life - 1
if self.life <= 0:
self.kill()
self.age = self.age (1 * self.maturing_speed / 1240)
@classmethod
def collide(cls):
for amoeba_1, amoeba_2 in itertools.combinations(amoebas, 2):
if amoeba_1.age >= 100 and amoeba_2.age >= 100 and (
pygame.sprite.collide_rect(amoeba_1, amoeba_2)
):
amoeba_1.age = 1
amoeba_2.age = 1
location_x = amoeba_1.rect.left random.randint(-10, 10)
location_y = amoeba_1.rect.bottom random.randint(-10, 10)
speed_low = min(amoeba_1.maturing_speed, amoeba_2.maturing_speed) - MUTATION_CONSTANT
speed_high = max(amoeba_1.maturing_speed, amoeba_2.maturing_speed) MUTATION_CONSTANT
new_maturing_speed = random.randint(speed_low, speed_high)
return cls(new_maturing_speed, location_x, location_y)
return None
def main():
screen.fill((255, 255, 255))
for i in range(25):
amoeba = Amoeba(random.randint(100, 150), random.randint(0, SCREEN_WIDTH), random.randint(0, SCREEN_HEIGHT))
amoebas.add(amoeba)
step_counter = 0
while True:
step_counter = 1
if step_counter % 100 == 0:
print(step_counter, amoebas)
five = 0
four = 0
three = 0
two = 0
one = 0
for amoeba in amoebas:
if amoeba.maturing_speed >= 200:
five = five 1
elif amoeba.maturing_speed >= 150:
four = four 1
elif amoeba.maturing_speed >= 100:
three = three 1
elif amoeba.maturing_speed >= 50:
two = two 1
else:
one = one 1
total = one two three four five
print(f'{five/total:.4f} {four/total:.4f} {three/total:.4f} {two/total:.4f} {one/total:.4f}')
time.sleep(0.0000001)
screen.fill((255, 255, 255))
for event in pygame.event.get():
if event.type == QUIT:
break
amoebas.update()
amoeba = Amoeba.collide()
if amoeba:
amoebas.add(amoeba)
for amoeba in amoebas:
screen.blit(amoeba.surf, amoeba.rect)
pygame.display.flip()
pygame.quit()
if __name__ == '__main__':
main()
轉載請註明出處，本文鏈接：https://www.uj5u.com/caozuo/537394.html
上一篇：從父類陣列C 回傳子類