Question

所以我有这个平台游戏。我需要一个变量创建者。很难解释。这是代码......

import pygame,time,random,sys
pygame.display.set_caption('My Platformer V1.0')
x = 10
y = 30
import os
os.environ['SDL_VIDEO_WINDOW_POS'] = "%d,%d" % (x,y)
GREEN = (0,255,0)
WHITE =(0,0,0)
BLACK = (0, 0, 0)
BLUE = (0, 0, 255)
LIGHTBLUE = (60,60,240)
LIGHTBROWN = (255, 236, 139)
RED = (255, 0, 0)
YELLOW = (255,255,0)
DARKRED = (102,0,0)
GRAY = (160,160,160)
WINDOWWIDTH = 1200
WINDOWHEIGHT = 700
mainClock = pygame.time.Clock()
from pygame.locals import *
pygame.init()
PlayerRect = pygame.Rect(0,0,50,80)
global PlayerX
global PlayerY
PlayerX = 0
PlayerY = 0
moveRight = False
moveLeft = False
moveUp = False
moveDown = False
gravity = False
Jump = False
JumpTime = 0
global PPX
global PPY
PPX = PlayerX
PPY = PlayerY
screen = pygame.display.set_mode((WINDOWWIDTH, WINDOWHEIGHT), 0, 32)
# Define Functions ---------------------------------------- #
def platform_spawnandcheck(x,y,sx,sy):
    Rect2 = pygame.Rect(x,y,sx,sy)
    pygame.draw.rect(screen,WHITE,Rect2)
    pygame.draw.rect(screen,GREEN,PlayerRect)
    pygame.display.update()
    y2 = y
    y2 += 80
    global PlayerY
    if PlayerY < y2:
        if PlayerRect.colliderect(Rect2):
            global PPX
            global PlayerY
            PlayerY = PPY
    if PlayerY > y2:
        if PlayerRect.colliderect(Rect2):
            global PPX 
            PlayerX = PPX
while True:
    # Make Past Coordinance ------------------------------- #
    PPX = PlayerX
    PPY = PlayerY
    # Jump ------------------------------------------------ #
    if Jump == True:
        JumpTime += 1
        PlayerY -= 12
        if JumpTime == 30:
            Jump = False
            JumpTime = 0
    # Gravity --------------------------------------------- #
    gravity = True
    # Movement -------------------------------------------- #
    if moveRight == True:
        PlayerX += 5
    if moveLeft == True:
        PlayerX -= 5
    if PlayerY > 620:
        gravity = False
    if moveUp == True:
        PlayerY -= 3
        if gravity == False:
            Jump = True
    if gravity == True:
        PlayerY += 5
    # Reload the player Rect ------------------------------ #
    PlayerRect = pygame.Rect(PlayerX,PlayerY,50,80)
    # Check for pressed keys ------------------------------ #
    for event in pygame.event.get():
        if event.type == QUIT:
            pygame.quit()
            sys.exit()
        if event.type == KEYDOWN:
            if event.key == ord('d'):
                moveRight = True
            if event.key == K_SPACE:
                moveUp = True
            if event.key == ord('a'):
                moveLeft = True
        if event.type == KEYUP:
            if event.key == ord('d'):
                moveRight = False
            if event.key == K_SPACE:
                moveUp = False
            if event.key == ord('a'):
                moveLeft = False
    # Update ---------------------------------------------- #
    screen.fill(LIGHTBLUE)
    platform_spawnandcheck(500,650,100,20)
    pygame.draw.rect(screen,GREEN,PlayerRect)
    pygame.display.update()
    mainClock.tick(60)

所以，如果你看一下代码...... 您将看到我需要一个变量生成器来为各个平台创建新变量。（我说的是“platform_spawnandcheck”函数。）（平台用于pygame。）

def platform_spawnandcheck(x,y,sx,sy):
    Rect2 = pygame.Rect(x,y,sx,sy)
    pygame.draw.rect(screen,WHITE,Rect2)
    pygame.draw.rect(screen,GREEN,PlayerRect)
    pygame.display.update()
    y2 = y
    y2 += 80
    global PlayerY
    if PlayerY < y2:
        if PlayerRect.colliderect(Rect2):
            global PPX
            global PlayerY
            PlayerY = PPY
    if PlayerY > y2:
        if PlayerRect.colliderect(Rect2):
            global PPX 
            PlayerX = PPX

回答关于制作变量的部分。我想要为我做一些变量，比如它让var1 var2 var3 var4等等。

我仍然需要答案。

Answer 1

A - 如果很难解释，你可能会错过编码所必需的清晰度

B-熟悉＆＃34; dict＆＃34;

move = {"up":False, "down":True}

是你想要的。

然后你可以添加值

move["jump"]=True

Answer 2

因此，您需要使用逻辑创建变量，而不是直接赋值。这就是我从你的问题中得到的。所以，而不是这个，

a = 10

你想做什么

if some logic:
    make_var(10)  # somehow returns (a,10) in bizaro python

虽然这是进行变量赋值的一种方法，但这不是正确的方法。 vish试图告诉你的是你可以通过创建一个python dict并在dict中进行赋值来创建变量

made_vars = {}
if some logic:
    made_vars[a] = 10

print made_vars[a]  # should print 10

所以你完成了作业。但是，不是名称var1，var2等，而是将变量名称设为made_var [var1]，made_var [var2]等。

我正在网上寻找更好的解释，我想出了这个link。

Answer 3

您应该为使用某个随机位置初始化的平台创建一个类。

类的__init__方法是该类的“生成器”，也称为构造函数。使用Platform()构造类的实例，并调用__init__方法并返回一个新的Platform对象。

class Platform:
    def __init__(self):
        self.x = random.randint(0, WINDOWWIDTH)
        self.y = random.randint(0, WINDOWHEIGHT)
        self.sx = 100
        self.sy = 20

# creating platforms
platforms = []
for i in xrange(20):
    platforms.append(Platform())

# accessing the coordinates of the platforms
for platform in platforms:
    print platform.x, platform.y, platform.sx, platform.sy

# passing the platforms into your function
for platform in platforms:
    platform_spawnandcheck(platform.x, platform.y, platform.sx, platform.sy)

如何使用代码创建变量（Python）

3 个答案: