python - 如何使用 pygame 在迷宫中随机移动物体?
问题描述
这是吃豆人的代码。我已经有一个移动的吃豆人和与鬼魂的碰撞,但我不知道如何让它们在地图上随机移动。我不需要他们追逐吃豆人,只是在他们撞到墙上时随机滑过地图并改变方向。我还想知道当吃豆人与鬼相撞时,我怎样才能让他死掉。
import pygame
pygame.init()
tela = pygame.display.set_mode((1000, 560))
jogo = True
class Tabuleiro:
def __init__(self, tela, x, y):
self.x = x
self.y = y
self.tela = tela
self.maze = [[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1],
[1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1],
[1, 0, 1, 1, 0, 1, 3, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 0, 1],
[1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 3, 1],
[1, 0, 1, 0, 1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 1, 0, 1, 0, 1],
[1, 0, 2, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1],
[1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 0, 1, 0, 1],
[1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1],
[1, 0, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 0, 1],
[1, 0, 0, 0, 3, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1],
[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]]
def show(self):
for col in range(20):
for lin in range(11):
if self.maze[lin][col] == 1:
self.tela.fill((255, 255, 255), rect=[self.x + col * 50, self.y + lin * 50, 50, 50])
if self.maze[lin][col] == 2:
self.tela.fill((255, 255, 0), rect=[self.x + col * 50 + 12, self.y + lin * 50 + 12, 25, 25])
if self.maze[lin][col] == 3:
self.tela.fill((255, 0, 0), rect=[self.x + col * 50 + 12, self.y + lin * 50 + 12, 25, 25])
def findFirst(self, number):
for row, rowlist in enumerate(self.maze):
for col, cell in enumerate(rowlist):
if cell == number:
return row, col
return None, None
def testIndex(self, row, col):
if row == None or col == None:
return False
if 0 <= row < len(self.maze) and 0 <= col < len(self.maze[row]):
return True
return False
def isFieldEqual(self, row, col, number):
if self.testIndex(row, col):
return self.maze[row][col] == number
return False
def swapFileds(self, row1, col1, row2, col2):
if self.testIndex(row1, col1) and self.testIndex(row2, col2):
self.maze[row1][col1], self.maze[row2][col2] = self.maze[row2][col2], self.maze[row1][col1]
maze = Tabuleiro(tela, 10, 10)
while jogo:
row, col = maze.findFirst(2)
for event in pygame.event.get():
if event.type == pygame.QUIT:
jogo = False
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_LEFT:
if maze.isFieldEqual(row, col - 1, 0):
maze.swapFileds(row, col - 1, row, col)
if event.key == pygame.K_RIGHT:
if maze.isFieldEqual(row, col + 1, 0):
maze.swapFileds(row, col + 1, row, col)
if event.key == pygame.K_UP:
if maze.isFieldEqual(row - 1, col, 0):
maze.swapFileds(row, col, row - 1, col)
if event.key == pygame.K_DOWN:
if maze.isFieldEqual(row + 1, col, 0):
maze.swapFileds(row + 1, col, row, col)
tela.fill(0)
maze.show()
pygame.display.update()
这是一个学校项目,所以它不必那么复杂。谢谢!
解决方案
number
添加一个可以在网格中找到所有具有特定字段的方法:
class Tabuleiro:
# [...]
def findAll(self, number):
result = []
for row, rowlist in enumerate(self.maze):
for col, cell in enumerate(rowlist):
if cell == number:
result.append((row, col))
return result
找到所有可以移动到的相邻位置。用于random.choice()
选择随机位置:
while jogo:
# [...]
for row, col in maze.findAll(3):
new_pos = [(row-1, col), (row+1, col), (row, col-1), (row, col+1)]
new_pos = [(r, c) for r, c in new_pos if maze.isFieldEqual(r, c, 0)]
if new_pos:
new_row, new_col = random.choice(new_pos)
maze.swapFileds(row, col, new_row, new_col)
用于pygame.time.get_ticks()
返回自pygame.init()
调用以来的毫秒数。设定敌人第一次行动的时间。当时间超过移动敌人并设置下一步移动的时间:
next_move_time = 0
jogo = True
while jogo:
current_time = pygame.time.get_ticks()
# [...]
if next_move_time < current_time:
next_move_time = current_time + 500 # 500 milliseconds = 0.5 seconds
for row, col in maze.findAll(3):
# [...]
完整示例:
import pygame
import random
pygame.init()
tela = pygame.display.set_mode((1000, 560))
class Tabuleiro:
def __init__(self, tela, x, y):
self.x = x
self.y = y
self.tela = tela
self.maze = [[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1],
[1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1],
[1, 0, 1, 1, 0, 1, 3, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 0, 1],
[1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 3, 1],
[1, 0, 1, 0, 1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 1, 0, 1, 0, 1],
[1, 0, 2, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1],
[1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 0, 1, 0, 1],
[1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1],
[1, 0, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 0, 1],
[1, 0, 0, 0, 3, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1],
[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]]
def show(self):
for col in range(20):
for lin in range(11):
if self.maze[lin][col] == 1:
self.tela.fill((255, 255, 255), rect=[self.x + col * 50, self.y + lin * 50, 50, 50])
if self.maze[lin][col] == 2:
self.tela.fill((255, 255, 0), rect=[self.x + col * 50 + 12, self.y + lin * 50 + 12, 25, 25])
if self.maze[lin][col] == 3:
self.tela.fill((255, 0, 0), rect=[self.x + col * 50 + 12, self.y + lin * 50 + 12, 25, 25])
def findFirst(self, number):
for row, rowlist in enumerate(self.maze):
for col, cell in enumerate(rowlist):
if cell == number:
return row, col
return None, None
def findAll(self, number):
result = []
for row, rowlist in enumerate(self.maze):
for col, cell in enumerate(rowlist):
if cell == number:
result.append((row, col))
return result
def testIndex(self, row, col):
if row == None or col == None:
return False
if 0 <= row < len(self.maze) and 0 <= col < len(self.maze[row]):
return True
return False
def isFieldEqual(self, row, col, number):
if self.testIndex(row, col):
return self.maze[row][col] == number
return False
def swapFileds(self, row1, col1, row2, col2):
if self.testIndex(row1, col1) and self.testIndex(row2, col2):
self.maze[row1][col1], self.maze[row2][col2] = self.maze[row2][col2], self.maze[row1][col1]
maze = Tabuleiro(tela, 10, 10)
next_move_time = 0
jogo = True
while jogo:
current_time = pygame.time.get_ticks()
row, col = maze.findFirst(2)
for event in pygame.event.get():
if event.type == pygame.QUIT:
jogo = False
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_LEFT:
if maze.isFieldEqual(row, col-1, 0):
maze.swapFileds(row, col-1, row, col)
if event.key == pygame.K_RIGHT:
if maze.isFieldEqual(row, col+1, 0):
maze.swapFileds(row, col+1, row, col)
if event.key == pygame.K_UP:
if maze.isFieldEqual(row-1, col, 0):
maze.swapFileds(row, col, row-1, col)
if event.key == pygame.K_DOWN:
if maze.isFieldEqual(row+1, col, 0):
maze.swapFileds(row+1, col, row, col)
if next_move_time < current_time:
next_move_time = current_time + 500 # 500 milliseconds = 0.5 seconds
for row, col in maze.findAll(3):
new_pos = [(row-1, col), (row+1, col), (row, col-1), (row, col+1)]
new_pos = [(r, c) for r, c in new_pos if maze.isFieldEqual(r, c, 0)]
if new_pos:
new_row, new_col = random.choice(new_pos)
maze.swapFileds(row, col, new_row, new_col)
tela.fill(0)
maze.show()
pygame.display.update()
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