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我有三个 b2Body-s。头部、下巴和一个静态类型的 b2Body。我将静态 b2Body 中的 b2Joint 添加到头部，将另一个 b2Joint 添加到头部和下巴。Head 忽略静态体，因为 collideConnected 对关节为 false，但 chin 不会忽略它。怎么做这个？请提出建议。

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1 回答 1

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enum CATEGORY_BITS
{
    BODY1_CATEGORY_BITS = 0x00000001,
    BODY2_CATEGORY_BITS = 0x00000002,
    BODY3_CATEGORY_BITS = 0x00000004,

};

当你创造身体时......

    b2FixtureDef fixtureForBODY1;
    fixtureForBODY1.shape = &shapeForBODY1;
    fixtureForBODY1.filter.categoryBits = BODY1_CATEGORY_BITS;
    fixtureForBODY1.filter.maskBits = BODY1_CATEGORY_BITS | BODY3_CATEGORY_BITS;


    b2FixtureDef fixtureForBODY2;
    fixtureForBODY2.shape = &shapeForBODY2;
    fixtureForBODY2.filter.categoryBits = BODY2_CATEGORY_BITS;
    fixtureForBODY2.filter.maskBits = BODY2_CATEGORY_BITS | BODY4_CATEGORY_BITS;

    b2FixtureDef fixtureForBODY3;
    fixtureForBODY3.shape = &shapeForBODY3;
    fixtureForBODY3.filter.categoryBits = BODY3_CATEGORY_BITS;
    fixtureForBODY3.filter.maskBits = BODY3_CATEGORY_BITS | BODY1_CATEGORY_BITS;

    b2FixtureDef fixtureForBODY4;
    fixtureForBODY4.shape = &shapeForBODY4;
    fixtureForBODY4.filter.categoryBits = BODY4_CATEGORY_BITS;
    fixtureForBODY4.filter.maskBits = BODY4_CATEGORY_BITS | BODY2_CATEGORY_BITS;



// BODY1 -> not collide connected (BODY2 and BODY4)
// BODY1 -> collide connected (BODY1 and BODY3)
于 2013-04-06T13:33:17.323 回答