Function zPlatform_PaddleCollide

src/SB/Game/zPlatform.cpp:425–533

}

U32 zPlatform_PaddleCollide(xCollis* coll, const xVec3* hitsource, const xVec3* hitvel, U32 worldSpaceNorm)
{
    zPlatform* plat = (zPlatform*)coll->optr;
    if (plat->state != 0) {
        return 0;
    }

    xVec3 locnorm;
    if (worldSpaceNorm) {
        xMat3x3Tolocal(&locnorm, (xMat3x3*)plat->model->Mat, &coll->norm);
    } else {
        locnorm = coll->norm;
    }

    xVec3 lochitsrc;
    xMat4x3Tolocal(&lochitsrc, (xMat4x3*)plat->model->Mat, hitsource);
    
    xVec3 lochitvel;
    xMat3x3Tolocal(&lochitvel, (xMat3x3*)plat->model->Mat, hitvel);

    if (xabs(locnorm.y) > xabs(locnorm.x) && xabs(locnorm.y) > xabs(locnorm.z)) {
        return 0;
    }

    if (xabs(lochitvel.y) > xabs(lochitvel.x) && xabs(lochitvel.y) > xabs(lochitvel.z)) {
        return 0;
    }

    xVec3Normalize(&locnorm, &locnorm);
    xVec3Normalize(&lochitvel, &lochitvel);
    
    F32 hitdot = xVec3Dot(&locnorm, &lochitvel);
    if (hitdot > -0.7071f) {
        return 0;
    }

    xVec3 hitsrcbot, hitsrctop;
    hitsrcbot = lochitsrc;
    hitsrctop = lochitsrc;

    hitsrcbot.y -= 5.0f;
    hitsrctop.y += 5.0f;

    xMat4x3Toworld(&hitsrcbot, (xMat4x3*)plat->model->Mat, &hitsrcbot);
    xMat4x3Toworld(&hitsrctop, (xMat4x3*)plat->model->Mat, &hitsrctop);
    
    xRay3 hitsrcray;
    hitsrcray.origin.x = hitsrcbot.x;
    hitsrcray.origin.y = hitsrcbot.y;
    hitsrcray.origin.z = hitsrcbot.z;
    hitsrcray.dir.x = hitsrctop.x - hitsrcbot.x;
    hitsrcray.dir.y = hitsrctop.y - hitsrcbot.y;
    hitsrcray.dir.z = hitsrctop.z - hitsrcbot.z;
    hitsrcray.min_t = 0.0f;
    hitsrcray.max_t = xVec3Normalize(&hitsrcray.dir, &hitsrcray.dir);
    hitsrcray.flags = XRAY3_USE_MIN | XRAY3_USE_MAX;
    
    xCollis hitsrccoll;