Python龜，如何讓顏色自己改變？

Question

爲我的世界創建一個立方體的圖像。 試圖讓盒子裏的顏色自己改變。有什麼樣的整數算法，我可以用來實現這一點，除了使用隨機？因爲現在它會產生隨機顏色，但我希望小盒子能夠自己改變顏色。有任何想法嗎？

import turtle 
import random 


minecraft = turtle.Turtle() 

minecraft.ht() 
minecraft.speed(9999999999999) #I guess there is a max speed??? wanted it to make the mini cubes a lot faster. 
#centers the box 
minecraft.up() 
minecraft.goto(-50,50) 
minecraft.down() 
#end of center box 
for i in range(4): #Creates the box 
minecraft.forward(100) 
minecraft.right(90) 
for i in range(1000): #Repeats all this code over and over 
for i in range(10): #makes the 10 cubes going down, then it comes back up  and repeates making cubes until it gets to the last cube. 
    for i in range(10): #initiate the random colors 
     red = random.random() 
     blue = random.random() 
     yellow = random.random() 
     minecraft.color(red, blue, yellow) 
     for i in range(1): #the little boxes 
      minecraft.begin_fill()  
      minecraft.forward(10) 
      minecraft.right(90) 
      minecraft.forward(10) 
      minecraft.right(90) 
      minecraft.forward(10) 
      minecraft.right(90) 
      minecraft.forward(10) 
      minecraft.right(90) 
      minecraft.end_fill() 

     minecraft.right(90) #little boxes changing directions 
     minecraft.forward(10) 
     minecraft.right(-90) 

    minecraft.forward(10) #little boxes changing directions...again 
    minecraft.right(-90) 
    minecraft.forward(100) 
    minecraft.right(90) 

minecraft.right(180) #and again... 
minecraft.forward(100) 
minecraft.right(180) 

Answer 1

random.random（）創建一個隨機數落入0和1之間。所以，當你需要一個隨機數0和MAX之間產生，只是簡單的用它大量繁殖，在你的情況下，像這樣：

int(random.random()*256) 

順便說一句，我再次檢查了烏龜文檔。 turtle.color（* args）需要兩個顏色參數，「返回或設置pencolor和fillcolor」。這意味着你需要以這種方式傳遞它turtle.color（（40,80,120），（160,200,240））。

Answer 2

根據您的問題描述，這是什麼，我相信你問 - 這顯得隨意單獨改變顏色隨機彩色框的網格：

from turtle import Turtle, Screen 
import random 

BOX_SIZE = 100 
SQUARE_SIZE = 10 
DELAY = 100 # milliseconds 

minecraft = Turtle(shape="square", visible=False) 
minecraft.shapesize(SQUARE_SIZE/20) 
minecraft.speed("fastest") 

# Center the box 
minecraft.up() 
minecraft.goto(-BOX_SIZE//2, BOX_SIZE//2) 
minecraft.down() 

# Create the box 
for _ in range(4): 
    minecraft.forward(BOX_SIZE) 
    minecraft.right(90) 
minecraft.up() 

# Move turtle inside box 
minecraft.forward(SQUARE_SIZE//2) 
minecraft.right(90) 
minecraft.forward(SQUARE_SIZE//2) 
minecraft.left(90) 

squares = [] 

for i in range(BOX_SIZE // SQUARE_SIZE): 
    # makes the 10 cubes going across, then it backs up and 
    # repeats making cubes until it gets to the last cube. 

    for j in range(BOX_SIZE // SQUARE_SIZE): 

     # initiate the random colors 
     red = random.random() 
     blue = random.random() 
     yellow = random.random() 

     minecraft.color(red, blue, yellow) 
     squares.append((minecraft.position(), minecraft.stamp())) 

     minecraft.forward(SQUARE_SIZE) 

    minecraft.backward(SQUARE_SIZE) 
    minecraft.sety(minecraft.ycor() - SQUARE_SIZE) 
    minecraft.right(180) # little boxes changing directions 

def change(): 
    random_choice = random.choice(squares) 
    squares.remove(random_choice) 
    position, stamp = random_choice 
    minecraft.goto(position) 

    red = random.random() 
    blue = random.random() 
    yellow = random.random() 

    minecraft.color(red, blue, yellow) 
    minecraft.clearstamp(stamp) 
    squares.append((minecraft.position(), minecraft.stamp())) 

    screen.ontimer(change, DELAY) 

screen = Screen() 

screen.ontimer(change, DELAY) 

screen.exitonclick() 

關鍵就在這，就像很多烏龜問題，是郵票，而不是畫。衝壓圖像可以完成許多繪製圖像無法做到的事情 - 在這種情況下，它們可以單獨移除並由其他印記代替。

此外，永遠不要讓你的海龜代碼永遠運行，也不要讓它接近它 - 使用事件代替ontimer()，以便其他海龜事件（如正確關閉窗口）可以正確觸發。