Question

我正在尝试过滤碰撞，当圆形和多边形之间发生碰撞时，我能够过滤，但是我不知道如何向边缘形状添加固定装置（以及过滤器）...

我有一个带有四个栅栏的此类建筑（为简单起见，仅显示了一个，另外三个与第一个栅栏的定义相同）

class Building():

    BUILDING_FILTER = b2Filter(categoryBits=BUILDING_CATEGORY,
                               maskBits=PEDESTRIAN_CATEGORY + CAR_CATEGORY,
                               groupIndex=BUILDING_GROUP,
                               )

    def __init__(self, box2world, shape, position):
        self.box2world = box2world
        self.shape = shape
        self.position = position
        self.footprint = self.box2world.CreateStaticBody(position=position,
                                                         angle=0.0,
                                                         fixtures=b2FixtureDef(
                                                             shape=b2PolygonShape(box=(self.shape)),
                                                             density=1000,
                                                             friction=1000,
                                                             filter=Building.BUILDING_FILTER))
        self.footprint.userData = {'obj': self}

        ###Creating pavements (fences)
        # The coordinates which are passed to CreateEdgeChain have to be relative to the body.
        # The position of the body is set when the object is constructed:
        FENCE_OFFSET_VERTICAL = 1.15
        FENCE_OFFSET_HORIZONTAL = 1.25

        self.Lower_Fence = self.box2world.CreateStaticBody(position=(self.footprint.position[0], self.footprint.position[1] - FENCE_OFFSET_HORIZONTAL * self.shape[1]),\
 filter=Building.BUILDING_FILTER) #Here is when the problem occurs
        # And the edges have to be relative to this position rather than an absolute position:
        self.Lower_Fence.CreateEdgeChain([(-self.shape[0], 0), (self.shape[0], 0)])
        self.Lower_Fence.userData = {'obj': self}

我也尝试过

        self.Lower_Fence = self.box2world.CreateStaticBody(position=(self.footprint.position[0], self.footprint.position[1] - FENCE_OFFSET_HORIZONTAL * self.shape[1]),\
 fixtures=b2FixtureDef(filter=Building.BUILDING_FILTER)) #Here is when the problem occurs
        # And the edges have to be relative to this position rather than an absolute position:
        self.Lower_Fence.CreateEdgeChain([(-self.shape[0], 0), (self.shape[0], 0)])
        self.Lower_Fence.userData = {'obj': self}

没有一个有效。如何将滤镜附加到EdgeShape？谢谢

PyBox2D中的EdgeShape碰撞过滤

0 个答案: