python - Nivel de cambio Pygame-nivel hecho de lista

title python

Question

Hola, soy nuevo en pygame Y he usado este ejemplo: http://pygame.org/project/1061/ El ejemplo muestra cómo chack para colisión, crea un nivel a partir de una lista y movimiento. Un gran ejemplo para principiantes. Lo he modificado para que pueda cambiar el nivel. Intenté eliminar las recetas una vez dibujadas, pero no me las puedo imaginar. Tengo el problema de que no puedo cambiar el nivel en mi código:

import os
import random
import pygame

# Class for the orange dude
    class Player(object):

    def __init__(self, pos):
        players.append(self)
        self.rect = pygame.Rect(pos[0], pos[1], 16, 16)

    def move(self, dx, dy):

        # Move each axis separately. Note that this checks for collisions both times.
        if dx != 0:
            self.move_single_axis(dx, 0)
        if dy != 0:
            self.move_single_axis(0, dy)

    def move_single_axis(self, dx, dy):

    # Move the rect
        self.rect.x += dx
        self.rect.y += dy

    # If you collide with a wall, move out based on velocity
        for wall in walls:
            if self.rect.colliderect(wall.rect):
                if dx > 0: # Moving right; Hit the left side of the wall
                    self.rect.right = wall.rect.left
                if dx < 0: # Moving left; Hit the right side of the wall
                    self.rect.left = wall.rect.right
                if dy > 0: # Moving down; Hit the top side of the wall
                    self.rect.bottom = wall.rect.top
                if dy < 0: # Moving up; Hit the bottom side of the wall
                    self.rect.top = wall.rect.bottom

# Nice class to hold a wall rect
class Wall(object):

    def __init__(self, pos):
        walls.append(self)
        self.rect = pygame.Rect(pos[0], pos[1], 16, 16)

class Finish(object):

    def __init__(self, pos):
        finishes.append(self)
        self.rect = pygame.Rect(pos[0], pos[1], 16, 16)

# Variables
currentLevel = 1

# Initialise pygame
pygame.init()

# Set up the display
pygame.display.set_caption("Change level")
screen = pygame.display.set_mode((320, 240))

clock = pygame.time.Clock()
walls = [] # List to hold the walls
players = []
finishes = []

# Holds the level layout in a list of strings.
if currentLevel == 1:

    level = [
    "WWWWWWWWWWWWWWWWWWWW",
    "W                  W",
    "W  P      WWWWWW   W",
    "W   WWWW       W   W",
    "W   W        WWWW  W",
    "W WWW  WWWW        W",
    "W   W     W W      W",
    "W   W     W   WWW WW",
    "W   WWW WWW   W W  W",
    "W     W   W   W W  W",
    "WWW   W   WWWWW W  W",
    "W W      WW        W",
    "W W   WWWW   WWW   W",
    "W     W   F    W   W",
    "WWWWWWWWWWWWWWWWWWWW",
    ]
    # Parse the level string above
    x = y = 0
    for row in level:
        for col in row:
            if col == "W":
                Wall((x, y))
            if col == "P":
                Player((x, y))
            if col == "F":
                Finish((x, y))
            x += 16
        y += 16
        x = 0
if currentLevel == 2:

    level = [
    "WWWWWWWWWWWWWWWWWWWW",
    "W                  W",
    "W                  W",
    "W   WWWWWWWWWWWWW  W",
    "W                  W",
    "W         P        W",
    "W                  W",
    "W   WWWWWWWWWWWWW  W",
    "W                  W",
    "W   WWWWWWWWWWWWW  W",
    "W                  W",
    "W         F        W",
    "W                  W",
    "W                  W",
    "WWWWWWWWWWWWWWWWWWWW",
    ]

    # Parse the level string above
    x = y = 0
    for row in level:
        for col in row:
            if col == "W":
                Wall((x, y))
            if col == "P":
                Player((x, y))
            if col == "F":
                Finish((x, y))
            x += 16
        y += 16
        x = 0

running = True
while running:

    clock.tick(60)

    for e in pygame.event.get():
        if e.type == pygame.QUIT:
            running = False
        if e.type == pygame.KEYDOWN and e.key == pygame.K_ESCAPE:
            running = False

    # Move the player if an arrow key is pressed
    key = pygame.key.get_pressed()
    if key[pygame.K_LEFT]:
        player.move(-2, 0)
    if key[pygame.K_RIGHT]:
        player.move(2, 0)
    if key[pygame.K_UP]:
        player.move(0, -2)
    if key[pygame.K_DOWN]:
        player.move(0, 2)

    # Just added this to make it slightly fun ;)
    for player in players:
        for finish in finishes:
            if player.rect.colliderect(finish.rect): 
                currentLevel = 2 # Doesn''t work

    # Draw the scene
    screen.fill((0, 0, 0))
    for wall in walls:
        pygame.draw.rect(screen, (255, 255, 255), wall.rect)
    for player in players:
        pygame.draw.rect(screen, (255, 200, 0), player.rect)
    for finish in finishes:
        pygame.draw.rect(screen, (0, 200, 0), finish.rect)
    pygame.display.flip() 

Answer 1

Solo cambia la variable currentLevel , pero nunca cambia las walls , los players y las listas de finishes (solo el código dentro del ciclo while se ejecuta en este momento).

Una forma muy simple de resolver este problema es poner el código que "carga" el nivel en una función y llamarlo cuando el jugador llega al final del nivel, por ejemplo:

import os
import random
import pygame

# Class for the orange dude
class Player(object):

    def __init__(self, pos):
        self.rect = pygame.Rect(pos[0], pos[1], 16, 16)

    def move(self, dx, dy):

        # Move each axis separately. Note that this checks for collisions both times.
        if dx != 0:
            self.move_single_axis(dx, 0)
        if dy != 0:
            self.move_single_axis(0, dy)

    def move_single_axis(self, dx, dy):

    # Move the rect
        self.rect.x += dx
        self.rect.y += dy

    # If you collide with a wall, move out based on velocity
        for wall in walls:
            if self.rect.colliderect(wall.rect):
                if dx > 0: # Moving right; Hit the left side of the wall
                    self.rect.right = wall.rect.left
                if dx < 0: # Moving left; Hit the right side of the wall
                    self.rect.left = wall.rect.right
                if dy > 0: # Moving down; Hit the top side of the wall
                    self.rect.bottom = wall.rect.top
                if dy < 0: # Moving up; Hit the bottom side of the wall
                    self.rect.top = wall.rect.bottom

# Nice class to hold a wall rect
class Wall(object):

    def __init__(self, pos):
        self.rect = pygame.Rect(pos[0], pos[1], 16, 16)

class Finish(object):

    def __init__(self, pos):
        self.rect = pygame.Rect(pos[0], pos[1], 16, 16)

# Variables
currentLevel = 0

# Initialise pygame
pygame.init()

# Set up the display
pygame.display.set_caption("Change level")
screen = pygame.display.set_mode((320, 240))

clock = pygame.time.Clock()

levels = [[
    "WWWWWWWWWWWWWWWWWWWW",
    "W                  W",
    "W  P      WWWWWW   W",
    "W   WWWW       W   W",
    "W   W        WWWW  W",
    "W WWW  WWWW        W",
    "W   W     W W      W",
    "W   W     W   WWW WW",
    "W   WWW WWW   W W  W",
    "W     W   W   W W  W",
    "WWW   W   WWWWW W  W",
    "W W      WW        W",
    "W W   WWWW   WWW   W",
    "W     W   F    W   W",
    "WWWWWWWWWWWWWWWWWWWW",
    ],
    [
    "WWWWWWWWWWWWWWWWWWWW",
    "W                  W",
    "W                  W",
    "W   WWWWWWWWWWWWW  W",
    "W                  W",
    "W         P        W",
    "W                  W",
    "W   WWWWWWWWWWWWW  W",
    "W                  W",
    "W   WWWWWWWWWWWWW  W",
    "W                  W",
    "W         F        W",
    "W                  W",
    "W                  W",
    "WWWWWWWWWWWWWWWWWWWW",
    ]]

def load_level(level):
    walls = []
    players = []
    finishes = []

    # Parse the level string above
    x = y = 0
    for row in levels[level]:
        for col in row:
            if col == "W":
                walls.append(Wall((x, y)))
            if col == "P":
                players.append(Player((x, y)))
            if col == "F":
                finishes.append(Finish((x, y)))
            x += 16
        y += 16
        x = 0
    return walls, players, finishes

walls, players, finishes = load_level(currentLevel)
running = True
while running:

    clock.tick(60)

    for e in pygame.event.get():
        if e.type == pygame.QUIT:
            running = False
        if e.type == pygame.KEYDOWN and e.key == pygame.K_ESCAPE:
            running = False

    # Move the player if an arrow key is pressed
    key = pygame.key.get_pressed()
    if key[pygame.K_LEFT]:
        player.move(-2, 0)
    if key[pygame.K_RIGHT]:
        player.move(2, 0)
    if key[pygame.K_UP]:
        player.move(0, -2)
    if key[pygame.K_DOWN]:
        player.move(0, 2)

    # Just added this to make it slightly fun ;)
    for player in players:
        for finish in finishes:
            if player.rect.colliderect(finish.rect): 
                currentLevel += 1
                walls, players, finishes = load_level(currentLevel)

    # Draw the scene
    screen.fill((0, 0, 0))
    for wall in walls:
        pygame.draw.rect(screen, (255, 255, 255), wall.rect)
    for player in players:
        pygame.draw.rect(screen, (255, 200, 0), player.rect)
    for finish in finishes:
        pygame.draw.rect(screen, (0, 200, 0), finish.rect)
    pygame.display.flip()