我的目标是创建一个模块,在pygame画布上制作网格,并允许您通过x和y坐标突出显示框。
这是一个简单的示例用法。
from grid import Grid
g = Grid(100, 100, 10) # width and height in cells, cell width in pixels
g.highlightBox(2, 2, (0, 255, 0)) # cell x and y, rgb color tuple
g.clearGrid()
这是我到目前为止的代码。问题是,我需要一个事件循环来保持窗口打开并使关闭按钮起作用,但我还需要允许其他功能绘制到屏幕上。
import pygame
import sys
class Grid:
colors = {"blue":(0, 0, 255), "red":(255, 0, 0), "green":(0, 255, 0), "black":(0, 0, 0), "white":(255, 255, 255)}
def __init__(self, width, height, cellSize, borderWidth=1):
self.cellSize = cellSize
self.borderWidth = borderWidth
self.width = width * (cellSize + borderWidth)
self.height = height * (cellSize + borderWidth)
self.screen = pygame.display.set_mode((self.width, self.height))
running = True
while running:
event = pygame.event.poll()
if event.type == pygame.QUIT:
running = False
def clearGrid(self):
pass
def highlightBox(self, x, y, color):
xx = x * (self.cellSize + self.borderWidth)
yy = y * (self.cellSize + self.borderWidth)
pygame.draw.rect(self.screen, color, (xx, yy, self.cellSize, self.cellSize), 0)
当我运行第一个样本时,代码将卡在循环中,不允许我运行highlightBox
函数,直到循环完成(按下退出按钮)。
答案 0 :(得分:1)
对于初学者,我不会把游戏循环放在初始化函数中;找到一些其他的地方。要解决这个问题,只需将要执行的代码放在游戏循环中,旁边是处理事件的代码:
running = True
while running:
event = pygame.event.poll()
if event.type == pygame.QUIT:
running = False
# Print your screen in here
# Also do any other stuff that you consider appropriate
答案 1 :(得分:1)
我认为你需要的是断开Grid类与它的显示。你可以让它生成表面,它将通过主游戏循环打印到屏幕Surface。您的 init ,highlight_cell和clear_grid方法可以返回Surfaces,或者创建一个每个游戏循环调用一次的get_surface方法
这将提供更大的灵活性
答案 2 :(得分:0)
我使用multiprocessing库和管道获得了一个工作版本。它似乎有点不合理,但它适用于这个项目。
import pygame
import sys
from multiprocessing import Process, Pipe
class Grid:
colors = {"blue":(0, 0, 255), "red":(255, 0, 0), "green":(0, 255, 0), "black":(0, 0, 0), "white":(255, 255, 255)}
def __init__(self, width, height, cellSize, borderWidth=1):
self.cellSize = cellSize
self.borderWidth = borderWidth
self.width = width * (cellSize + borderWidth)
self.height = height * (cellSize + borderWidth)
#pygame.draw.rect(self.screen, todo[1], (todo[2], todo[3], todo[4], todo[5]), 0)
self.parent_conn, self.child_conn = Pipe()
self.p = Process(target=self.mainLoop, args=(self.child_conn, self.width, self.height,))
self.p.start()
def close():
self.p.join()
def clearGrid(self):
pass
def highlightBox(self, x, y, color):
xx = x * (self.cellSize + self.borderWidth)
yy = y * (self.cellSize + self.borderWidth)
self.parent_conn.send(["box", color, xx, yy, self.cellSize, self.cellSize])
def mainLoop(self, conn, width, height):
#make window
screen = pygame.display.set_mode((self.width, self.height))
running = True
while running:
# is there data to read
if conn.poll():
#read all data
todo = conn.recv()
print("Recived " + str(todo))
#do the drawing
if todo[0] == "box":
print("drawing box")
pygame.draw.rect(screen, todo[1], (todo[2], todo[3], todo[4], todo[5]), 0) #color, x, y, width, height
todo = ["none"]
#draw to screen
pygame.display.flip()
#get events
event = pygame.event.poll()
if event.type == pygame.QUIT:
running = False