Python numpy:索引 20 超出轴 0 的范围，大小为 20? [英] Python numpy : index 20 is out of bounds for axis 0 with size 20?
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问题描述
我已经阅读了与此主题相关的其他已回答问题，它们都涉及嵌套循环轴"；但就我而言，我仅使用单个值就使用了内置索引.
I've read other answered questions relating to this topic and they all refer to the nested loops "axis" but in my case, I have used the inbuilt index by just using a single value.
import random, pygame, numpy
#window setup aswell as global variable
pygame.init()
screen_size = 400
global window
window = pygame.display.set_mode((screen_size,screen_size))
pygame.display.set_caption("evolution simulator")
window.fill((255,255,255))
pygame.display.update()
def draw_Window():
global grid
blockSize = 20
# grid = []
for row in range(20):#NO IT ISNT
for column in range(20):
grid = numpy.zeros((20,20))
rect = pygame.Rect(row*blockSize, column*blockSize,blockSize, blockSize)
pygame.draw.rect(window,(0,0,0), rect, 1)
#0 EMPTY
#1 spurgs
#2 FOOD
class spurgs:
def __init__(self,age,hunger,speed,gender,x,y,race):
# 1 for male, 2 for female
self.hunger = hunger
self.speed = speed
self.gender = gender
self.age = age
self.race = race
self.x = x
self.y = y
self.size = 8
self.death = False
def update(self):
if self.death == False:
self.age = self.age + 1
self.draw()
if self.age <= 100:
coin_flip = random.randint(1,2)
if coin_flip == 1:
self.death == True
if grid[self.x,self.y] == 0:
grid[self.x,self.y] = 1
self.sense()
#MATRIX
#SURVIVAL ELEMENTS
def eat(self):
self.hunger +=1
def breed(self,mate):
# In the generation class, make a list for the next generation and append baby to the list
pass
# SENSE
def sense(self):
self.senses = 1
if grid[self.x,self.y] == grid[20,self.y]:
right = False
else:
right = True
if grid[self.x+self.senses,self.y] == 2 and right:#Right
self.move("right")
if grid[self.x,self.y] == grid[0,self.y]:
left = False
else:
left = True
if grid[self.x-self.senses,self.y] == 2 and left:#left
self.move("left")
if grid[self.x,self.y] == grid[self.x,20]:
down = False
else:
down = True
if grid[self.x,self.y-self.senses] ==2 and up:
self.move("down")
if grid[self.x,self.y] == grid[self.x,0]:
up = False
else:
up = True
if grid[self.x,self.senses+self.y] == 2:
self.move("up")
#MOVEMENT
def move(self,dir):
if self.death == False:
if dir == "right":
self.x += self.senses
self.update()
if self.death == False:
if dir == "left":
self.x -= self.senses
self.update()
if self.death == False:
if dir == "up":
self.y += self.senses
self.update()
if self.death == False:
if dir == "down":
self.y -= self.senses
self.update()
#DRAWING
def draw(self):
# x =1 , y =4
#for grid system
if self.death ==False:
#{Pixel Converter}
self.d_x = self.x * 20 - 10
self.d_y = self.y * 20 - 10
pygame.draw.circle(window,self.race,(self.d_x,self.d_y),self.size)
# GENERATION class
class generation:
def __init__(self,size):
self.size = size + 1
self.currentGen = []
def makeGeneration(self):
for i in range(self.size):
self.seed_mutations = random.randint(0,20)
self.x = random.randint(0,20)
self.y = random.randint(0,20)
self.gender = random.randint(1,2)
#Race chooser
race = random.randint (1,4)
if race == 1:
self.color_race = (0, 110, 255)
elif race == 2:
self.color_race = (255, 234, 0)
if race == 3:
self.color_race = (132, 0, 255)
if race == 4:
self.color_race = (242, 53, 53)
self.currentGen.append(spurgs(1,self.seed_mutations,self.seed_mutations,self.gender,self.x,self.y,self.color_race))
def update(self):
for s in self.currentGen:
s.update()
class food:
def __init__(self,type):
self.type = type
if self.type == "m":
self.hunger_val = 2
elif self.type == "a":
self.hunger_val = 1
self.eaten = False
self.x = random.randint(0,20)
self.y = random.randint(0,20)
def draw(self):
if self.eaten == False:
x = self.x * 20 - 10
y = self.y * 20 - 10
if self.type =="m":
pygame.draw.circle(window,(10,255,50),(x,y),self.hunger_val*5)
elif self.type == "a":
pygame.draw.circle(window,(0,0,0),(x,y),self.hunger_val*5)
def update(self):
if self.eaten == False:
self.draw()
if grid[self.x,self.y] == 0:
grid[self.x,self.y] = 2
elif grid[self.x,self.y] == 1:
grid[self.x,self.y] = 1
self.eaten = False
a = food("m")
a.draw()
gen_1 = generation(8)
gen_1.makeGeneration()
run = True
while run:
#WINDOW
window.fill((255,255,255))
draw_Window()
#QUIT CONDITION
for event in pygame.event.get():
if event.type == pygame.QUIT:
print("closing the loop")
run = False
#TESTING
gen_1.update()
a.update()
print("getting here")
#FINAL LOOP
pygame.display.update()
pygame.time.delay(1000)
pygame.quit()
这是错误:
if grid[self.x+self.senses,self.y] == 2 and right:#Right索引错误:索引 21 超出轴 0 的范围，大小为 20
This is the error :
if grid[self.x+self.senses,self.y] == 2 and right:#Right
IndexError: index 21 is out of bounds for axis 0 with size 20
推荐答案
对于大小为 20 的轴 0，索引 20 是否超出范围?
index 20 is out of bounds for axis 0 with size 20?
当然可以.索引从0开始.因此0到19的索引是有效的，但20是越界的.
Yes of course. The indices start at 0. Therefor the indices from 0 to 19 are valid, but 20 is out of bounds.
数组 si 中的最后一个元素用 19 而不是 20 寻址:
The last element in the array si addressed with 19 rather than 20:
if grid[self.x,self.y] == grid[20,self.y]:
if grid[self.x,self.y] == grid[19,self.y]:
if grid[self.x,self.y] == grid[self.x,20]:
if grid[self.x,self.y] == grid[self.x,19]:
self.x = random.randint(0,20)
self.x = random.randint(0,19)
或者，您可以使用 random.randrange 而不是 random.randint:
Alternatively, you can use random.randrange instead of random.randint:
self.x = random.randrange(20)
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