Function xRayHitsGrid

src/SB/Core/x/xScene.cpp:180–506

}

void xRayHitsGrid(xGrid* grid, xScene* sc, xRay3* r, xRayEntCallback rentcb, xQCData* qcr,
                  void* data)
{
    xLine3 ln;
    xGridIterator it;

    r->flags |= (XRAY3_USE_MIN | XRAY3_USE_MAX);
    if (r->flags & XRAY3_USE_MIN)
    {
        xVec3 delta;
        delta.x = r->dir.x * r->min_t;
        delta.y = r->dir.y * r->min_t;
        delta.z = r->dir.z * r->min_t;
        ln.p1.x = r->origin.x + delta.x;
        ln.p1.y = r->origin.y + delta.y;
        ln.p1.z = r->origin.z + delta.z;
    }
    else
    {
        ln.p1.x = r->origin.x;
        ln.p1.y = r->origin.y;
        ln.p1.z = r->origin.z;
    }
    if (r->flags & XRAY3_USE_MAX)
    {
        F32 len;
        if (r->flags & XRAY3_USE_MIN)
        {
            len = r->max_t - r->min_t;
        }
        else
        {
            len = r->max_t;
        }
        ln.p2.x = r->dir.x * len;
        ln.p2.y = r->dir.y * len;
        ln.p2.z = r->dir.z * len;
    }
    else
    {
        ln.p2.x = r->dir.x;
        ln.p2.y = r->dir.y;
        ln.p2.z = r->dir.z;
    }

    ln.p2.x = ln.p1.x + ln.p2.x;
    ln.p2.y = ln.p1.y + ln.p2.y;
    ln.p2.z = ln.p1.z + ln.p2.z;

    S32 sclgx, sclgz;
    S32 eclgx, eclgz;
    F32 sclcx, sclcz;
    F32 eclcx, eclcz;
    F32 halfclx, halfclz;
    F32 quatrclx, quatrclz;
    S32 sz, ez;
    S32 x, z;