def setTiles(self):
#background
brush = QBrush(
) #QBrush(画刷)是一个基本的图形对象，用于填充如矩形，椭圆形，多边形等形状，QBrush有三种类型，预定义，过渡，和纹理图案
pix = QPixmap(os.getcwd() + "/robotImages/tile.png")
brush.setTexture(pix)
brush.setStyle(24)
self.setBackgroundBrush(brush)
#wall：left、right、top、bottom都是QGraphicsRectItem类型
#left
left = QGraphicsRectItem()
pix = QPixmap(os.getcwd() + "/robotImages/tileVert.png") #获取贴图
left.setRect(QRectF(0, 0, pix.width(),
self.height)) #尺寸：宽是图片宽度 ，高度是战场高度
brush.setTexture(pix) #设置贴图函数
brush.setStyle(
24
) #参数24指平铺格式（参数为枚举类型）详情见 https://doc.qt.io/qt-5/qt.html#BrushStyle-enum
left.setBrush(brush)
left.name = 'left'
self.addItem(left)
#right
right = QGraphicsRectItem()
right.setRect(self.width - pix.width(), 0, pix.width(),
self.height) #尺寸：宽是图片的宽度、高是战场的高
right.setBrush(brush)
right.name = 'right'
self.addItem(right)
#top
top = QGraphicsRectItem()
pix = QPixmap(os.getcwd() + "/robotImages/tileHori.png")
top.setRect(QRectF(0, 0, self.width, pix.height()))
brush.setTexture(pix)
brush.setStyle(24)
top.setBrush(brush)
top.name = 'top'
self.addItem(top)
#bottom
bottom = QGraphicsRectItem()
bottom.setRect(0, self.height - pix.height(), self.width, pix.height())
bottom.setBrush(brush)
bottom.name = 'bottom'
self.addItem(bottom)
