Esempio n. 1
0
    private bool _CapsuleTraceBrush(CollisioinTreeNode pNode, CapsuleTraceBrushInfo pInfo)
    {
        if (null == pNode || null == pInfo)
        {
            return(false);
        }

        if (!BoundsExtansions.AABBAABBOverlap(pNode.AABB, pInfo.Bound))
        {
            return(false);
        }

        bool bCollide    = false;
        bool bStartSolid = false;

        CDBrush       HitObject = null;
        CollidePoints HitPoints = new CollidePoints();
        Vector3       normal    = Vector3.zero;
        float         fFraction = 100.0f;

        if (pNode.IsLeaf())
        {
            int i;
            for (i = 0; i < (int)pNode.LstCDBrush.Count; ++i)
            {
                CDBrush pBrush = pNode.LstCDBrush[i];

                if (pBrush.CapsuleTraceBrush(pInfo) && (pInfo.Fraction < fFraction))
                {
                    //update the saving info
                    bStartSolid = pInfo.StartSolid;
                    fFraction   = pInfo.Fraction;
                    HitObject   = pInfo.HitObject;
                    HitPoints   = pInfo.HitPoints;
                    normal      = pInfo.Normal;
                    bCollide    = true;

                    //if (pInfo.Fraction == 0.0f)
                    //{
                    //    break;
                    //}
                }
            }
        }
        else
        {
            for (int j = 0; j < 8; j++)
            {
                if (_CapsuleTraceBrush(pNode.Children[j], pInfo) && pInfo.Fraction < fFraction)
                {
                    bStartSolid = pInfo.StartSolid;
                    fFraction   = pInfo.Fraction;
                    HitObject   = pInfo.HitObject;
                    HitPoints   = pInfo.HitPoints;
                    normal      = pInfo.Normal;
                    bCollide    = true;
                    //if (pInfo.Fraction == 0.0f)
                    //{
                    //    break;
                    //}
                }
            }
        }

        if (bCollide)
        {
            //set back
            pInfo.StartSolid = bStartSolid;
            pInfo.Fraction   = fFraction;
            pInfo.HitObject  = HitObject;
            pInfo.HitPoints  = HitPoints;
            pInfo.Normal     = normal;
        }
        return(bCollide);
    }