/// <summary>
/// Renders a layer mask field which can be used to mask/unmask different
/// combinations of layers.
/// </summary>
public static int LayerMaskField(GUIContent content, int layerMask)
{
// Store all layer names for easy access
List <string> allLayerNames = LayerEx.GetAllLayerNames();
// We first need to build a mask that is mapped to each element in 'allLayerNames'.
// A 0 bit indicates that the layer with the same index as the bit position is masked.
int indexMask = 0;
for (int layerNameIndex = 0; layerNameIndex < allLayerNames.Count; ++layerNameIndex)
{
// If the layer is set inside the layer mask, set the bit in the index mask also
string layerName = allLayerNames[layerNameIndex];
if (LayerEx.IsLayerBitSet(layerMask, LayerMask.NameToLayer(layerName)))
{
indexMask |= (1 << layerNameIndex);
}
}
// Now we need to show the mask field to the user and use the returned index mask
// to rebuild the actual layer mask.
int resultMask = layerMask;
int newIndexMask = EditorGUILayout.MaskField(content, indexMask, allLayerNames.ToArray());
for (int layerNameIndex = 0; layerNameIndex < allLayerNames.Count; ++layerNameIndex)
{
// Sync the index mask with the layer mask
string layerName = allLayerNames[layerNameIndex];
if (((newIndexMask >> layerNameIndex) & 0x1) != 0)
{
resultMask = LayerEx.SetLayerBit(resultMask, LayerMask.NameToLayer(layerName));
}
else
{
resultMask = LayerEx.ClearLayerBit(resultMask, LayerMask.NameToLayer(layerName));
}
}
return(resultMask);
}
public void FilterHits(List <GameObjectRayHit> hits)
{
hits.RemoveAll(item => !AllowedObjectTypes.Contains(item.HitObject.GetGameObjectType()) ||
IgnoreObjects.Contains(item.HitObject) || !LayerEx.IsLayerBitSet(_layerMask, item.HitObject.layer));
}
private bool IdentifyGrabSurface()
{
_grabSurfaceInfo.SurfaceType = GrabSurfaceType.Invalid;
SceneRaycastFilter raycastFilter = new SceneRaycastFilter();
raycastFilter.LayerMask = SharedSettings.SurfaceLayers;
if ((SharedSettings.SurfaceFlags & ObjectGrabSurfaceFlags.Mesh) != 0)
{
raycastFilter.AllowedObjectTypes.Add(GameObjectType.Mesh);
}
if ((SharedSettings.SurfaceFlags & ObjectGrabSurfaceFlags.Terrain) != 0)
{
raycastFilter.AllowedObjectTypes.Add(GameObjectType.Terrain);
}
foreach (var grabTarget in _grabTargets)
{
raycastFilter.IgnoreObjects.AddRange(grabTarget.GameObject.GetAllChildrenAndSelf());
}
SceneRaycastHit raycastHit = EditorScene.Get.Raycast(EditorCamera.Pickray, SceneRaycastPrecision.BestFit, raycastFilter);
if (!raycastHit.WasAnythingHit)
{
return(false);
}
_grabSurfaceInfo.SceneRaycastHit = raycastHit;
if (raycastHit.WasAnObjectHit)
{
_grabSurfaceInfo.AnchorNormal = raycastHit.ObjectHit.HitNormal;
_grabSurfaceInfo.AnchorPoint = raycastHit.ObjectHit.HitPoint;
_grabSurfaceInfo.AnchorPlane = raycastHit.ObjectHit.HitPlane;
GameObjectType hitObjectType = raycastHit.ObjectHit.HitObject.GetGameObjectType();
if (hitObjectType == GameObjectType.Mesh)
{
_grabSurfaceInfo.SurfaceType = GrabSurfaceType.Mesh;
int objectLayer = raycastHit.ObjectHit.HitObject.layer;
if (LayerEx.IsLayerBitSet(SharedSettings.SphericalMeshLayers, objectLayer))
{
_grabSurfaceInfo.SurfaceType = GrabSurfaceType.SphericalMesh;
}
else if (LayerEx.IsLayerBitSet(SharedSettings.TerrainMeshLayers, objectLayer))
{
_grabSurfaceInfo.SurfaceType = GrabSurfaceType.TerrainMesh;
}
}
else
{
_grabSurfaceInfo.SurfaceType = GrabSurfaceType.UnityTerrain;
}
}
else
if (raycastHit.WasGridHit && (SharedSettings.SurfaceFlags & ObjectGrabSurfaceFlags.Grid) != 0)
{
_grabSurfaceInfo.AnchorNormal = raycastHit.GridHit.HitNormal;
_grabSurfaceInfo.AnchorPoint = raycastHit.GridHit.HitPoint;
_grabSurfaceInfo.AnchorPlane = raycastHit.GridHit.HitPlane;
_grabSurfaceInfo.SurfaceType = GrabSurfaceType.Grid;
}
return(true);
}
