private XZGrid GetClosestHitGridAndMinT(List <XZGrid> allSnapGrids, Ray ray, out float minT)
{
minT = float.MaxValue;
XZGrid closestSnapGrid = null;
foreach (XZGrid snapGrid in allSnapGrids)
{
float t;
if (snapGrid.Plane.Raycast(ray, out t) & t < minT)
{
minT = t;
closestSnapGrid = snapGrid;
}
}
return(closestSnapGrid);
}
public GridCellRayHit GetGridCellRayHit()
{
Ray ray = GetWorldRay();
float minT;
XZGrid closestGrid = GetClosestHitGridAndMinT(new List <XZGrid> {
RuntimeEditorApplication.Instance.XZGrid
}, ray, out minT);
if (closestGrid != null)
{
return(GetGridCellHit(closestGrid, ray, minT));
}
else
{
return(null);
}
}
public GridCellRayHit GetGridCellRayHit()
{
Ray ray;
if (!InputDevice.Instance.GetPickRay(EditorCamera.Instance.Camera, out ray))
{
return(null);
}
float minT;
XZGrid closestGrid = GetClosestHitGridAndMinT(new List <XZGrid> {
RuntimeEditorApplication.Instance.XZGrid
}, ray, out minT);
if (closestGrid != null)
{
return(GetGridCellHit(closestGrid, ray, minT));
}
else
{
return(null);
}
}
private GridCellRayHit GetGridCellHit(XZGrid hitGrid, Ray ray, float t)
{
XZGridCell hitGridCell = hitGrid.GetCellFromWorldPoint(ray.GetPoint(t));
return(new GridCellRayHit(ray, t, hitGridCell));
}
public XZGridCell(int cellIndexX, int cellIndexZ, XZGrid parentGrid)
{
_cellIndexX = cellIndexX;
_cellIndexZ = cellIndexZ;
_parentGrid = parentGrid;
}