Пример #1
0
            /// <summary>
            /// Plants one item
            /// </summary>
            /// <param name="scene">Scene</param>
            /// <param name="pos">Position</param>
            /// <param name="size">Size</param>
            /// <param name="res">Resulting item</param>
            /// <returns>Returns true if an item has been planted</returns>
            private static bool Plant(Scene scene, Vector3 pos, Vector2 size, out VertexBillboard res)
            {
                var ray = scene.GetTopDownRay(pos);

                bool found = scene.PickFirst(
                    ray,
                    RayPickingParams.FacingOnly | RayPickingParams.Geometry,
                    SceneObjectUsages.Ground,
                    out var r);

                if (found && r.Item.Normal.Y > 0.5f)
                {
                    res = new VertexBillboard()
                    {
                        Position = r.Position,
                        Size     = size,
                    };

                    return(true);
                }

                res = new VertexBillboard();

                return(false);
            }