/// <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 static SnapResult CalculateSnapResult(GameObject root, Config snapConfig)
{
if (snapConfig.IgnoreDestObjects == null)
{
snapConfig.IgnoreDestObjects = new List <GameObject>();
}
List <GameObject> sourceObjects = root.GetAllChildrenAndSelf();
if (sourceObjects.Count > MaxSourceObjects)
{
return(new SnapResult(SnapFailReson.MaxObjectsExceeded));
}
List <GameObject> sourceMeshObjects = root.GetMeshObjectsInHierarchy();
List <GameObject> sourceSpriteObjects = root.GetSpriteObjectsInHierarchy();
if (sourceMeshObjects.Count == 0 && sourceSpriteObjects.Count == 0)
{
return(new SnapResult(SnapFailReson.InvalidSourceObjects));
}
var boundsQConfig = new ObjectBounds.QueryConfig();
boundsQConfig.ObjectTypes = GameObjectType.Mesh | GameObjectType.Sprite;
Vector3 overlapSizeAdd = Vector3.one * snapConfig.SnapRadius * 2.0f;
var allSnapFaces = BoxMath.AllBoxFaces;
bool tryMatchAreas = (snapConfig.Prefs & Prefs.TryMatchArea) != 0;
bool foundMatchingAreas = false;
List <SnapSortData> sortedSnapData = new List <SnapSortData>(10);
SnapSortData sortData = new SnapSortData();
foreach (var sourceObject in sourceObjects)
{
OBB overlapOBB = ObjectBounds.CalcWorldOBB(sourceObject, boundsQConfig);
overlapOBB.Size = overlapOBB.Size + overlapSizeAdd;
List <GameObject> nearbyObjects = RTScene.Get.OverlapBox(overlapOBB);
nearbyObjects.RemoveAll(item => item.transform.IsChildOf(root.transform) ||
snapConfig.IgnoreDestObjects.Contains(item) || !LayerEx.IsLayerBitSet(snapConfig.DestinationLayers, item.layer));
if (nearbyObjects.Count == 0)
{
continue;
}
var sourceSnapData = Object2ObjectSnapDataDb.Get.GetObject2ObjectSnapData(sourceObject);
if (sourceSnapData == null)
{
continue;
}
sortData.SrcObject = sourceObject;
foreach (var srcSnapFace in allSnapFaces)
{
var srcAreaDesc = sourceSnapData.GetWorldSnapAreaDesc(srcSnapFace);
var srcAreaBounds = sourceSnapData.GetWorldSnapAreaBounds(srcSnapFace);
var srcAreaPts = srcAreaBounds.GetCenterAndCornerPoints();
sortData.SrcSnapFace = srcSnapFace;
foreach (var destObject in nearbyObjects)
{
var destSnapData = Object2ObjectSnapDataDb.Get.GetObject2ObjectSnapData(destObject);
if (destSnapData == null)
{
continue;
}
sortData.DestObject = destObject;
foreach (var destSnapFace in allSnapFaces)
{
sortData.DestSnapFace = destSnapFace;
var destAreaDesc = destSnapData.GetWorldSnapAreaDesc(destSnapFace);
sortData.FaceAreasMatch = false;
if (tryMatchAreas && destAreaDesc.AreaType == srcAreaDesc.AreaType)
{
sortData.FaceAreaDiff = Mathf.Abs(destAreaDesc.Area - srcAreaDesc.Area);
if (sortData.FaceAreaDiff <= 1000.0f)
{
sortData.FaceAreasMatch = true;
}
}
var destAreaBounds = destSnapData.GetWorldSnapAreaBounds(destSnapFace);
var destAreaPts = destAreaBounds.GetCenterAndCornerPoints();
foreach (var srcPt in srcAreaPts)
{
sortData.SnapPivot = srcPt;
foreach (var destPt in destAreaPts)
{
sortData.SnapDistance = (destPt - srcPt).magnitude;
if (sortData.SnapDistance < snapConfig.SnapRadius)
{
sortData.SnapDest = destPt;
sortedSnapData.Add(sortData);
if (sortData.FaceAreasMatch)
{
foundMatchingAreas = true;
}
}
}
}
}
}
}
}
if (sortedSnapData.Count != 0)
{
if (!tryMatchAreas || !foundMatchingAreas)
{
sortedSnapData.Sort(delegate(SnapSortData s0, SnapSortData s1)
{
return(s0.SnapDistance.CompareTo(s1.SnapDistance));
});
}
else
{
while (true)
{
if (!sortedSnapData[0].FaceAreasMatch)
{
sortedSnapData.RemoveAt(0);
}
else
{
break;
}
}
sortedSnapData.Sort(delegate(SnapSortData s0, SnapSortData s1)
{
return(s0.FaceAreaDiff.CompareTo(s1.FaceAreaDiff));
});
}
return(new SnapResult(sortedSnapData[0].SnapPivot, sortedSnapData[0].SnapDest, sortedSnapData[0].SnapDistance));
}
return(new SnapResult(SnapFailReson.NoDestinationFound));
}
public bool IsLayerSnapDestination(int objectLayer)
{
return(LayerEx.IsLayerBitSet(_snapDestinationLayers, objectLayer));
}
public bool IsLayerTransformable(int objectLayer)
{
return(LayerEx.IsLayerBitSet(_transformableLayers, objectLayer));
}
public void FilterOverlaps(List <GameObject> gameObjects)
{
gameObjects.RemoveAll(item => !AllowedObjectTypes.Contains(item.GetGameObjectType()) ||
IgnoreObjects.Contains(item) || !LayerEx.IsLayerBitSet(_layerMask, item.layer));
}
public void FilterHits(List <GameObjectRayHit> hits)
{
hits.RemoveAll(item => !AllowedObjectTypes.Contains(item.HitObject.GetGameObjectType()) ||
IgnoreObjects.Contains(item.HitObject) || !LayerEx.IsLayerBitSet(_layerMask, item.HitObject.layer));
}