public SceneRaycastHit Raycast(Ray ray, SceneRaycastPrecision rtRaycastPrecision, SceneRaycastFilter raycastFilter)
{
List <GameObjectRayHit> allObjectHits = RaycastAllObjectsSorted(ray, rtRaycastPrecision, raycastFilter);
GameObjectRayHit closestObjectHit = allObjectHits.Count != 0 ? allObjectHits[0] : null;
XZGridRayHit gridRayHit = RaycastSceneGrid(ray);
return(new SceneRaycastHit(closestObjectHit, gridRayHit));
}
public List <GameObjectRayHit> RaycastAllObjectsSorted(Ray ray, SceneRaycastPrecision raycastPresicion)
{
List <GameObjectRayHit> allHits = RaycastAllObjects(ray, raycastPresicion);
GameObjectRayHit.SortByHitDistance(allHits);
return(allHits);
}
public GameObjectRayHit RaycastTerrainObjectReverseIfFail(Ray ray, GameObject terrainObject)
{
GameObjectRayHit hit = RaycastTerrainObject(ray, terrainObject);
if (hit == null)
{
hit = RaycastTerrainObject(new Ray(ray.origin, -ray.direction), terrainObject);
}
return(hit);
}
public SceneRaycastHit(GameObjectRayHit objectRayHit, XZGridRayHit gridRayHit)
{
_objectHit = objectRayHit;
_gridHit = gridRayHit;
}
public List <GameObjectRayHit> RaycastAll(Ray ray, SceneRaycastPrecision raycastPresicion)
{
var nodeHits = _objectTree.RaycastAll(ray);
if (nodeHits.Count == 0)
{
return(new List <GameObjectRayHit>());
}
var boundsQConfig = new ObjectBounds.QueryConfig();
boundsQConfig.ObjectTypes = GameObjectTypeHelper.AllCombined;
boundsQConfig.NoVolumeSize = EditorScene.Get.NoVolumeObjectSize;
if (raycastPresicion == SceneRaycastPrecision.BestFit)
{
var hitList = new List <GameObjectRayHit>(10);
foreach (var nodeHit in nodeHits)
{
GameObject sceneObject = nodeHit.HitNode.Data;
if (sceneObject == null || !sceneObject.activeInHierarchy)
{
continue;
}
Renderer renderer = sceneObject.GetComponent <Renderer>();
if (renderer != null && !renderer.isVisible)
{
continue;
}
GameObjectType objectType = sceneObject.GetGameObjectType();
if (objectType == GameObjectType.Mesh)
{
GameObjectRayHit objectHit = RaycastMeshObject(ray, sceneObject);
if (objectHit != null)
{
hitList.Add(objectHit);
}
}
else
if (objectType == GameObjectType.Terrain)
{
TerrainCollider terrainCollider = sceneObject.GetComponent <TerrainCollider>();
if (terrainCollider != null)
{
RaycastHit hitInfo;
if (terrainCollider.Raycast(ray, out hitInfo, float.MaxValue))
{
hitList.Add(new GameObjectRayHit(ray, hitInfo));
}
}
}
else
if (objectType == GameObjectType.Sprite)
{
GameObjectRayHit objectHit = RaycastSpriteObject(ray, sceneObject);
if (objectHit != null)
{
hitList.Add(objectHit);
}
}
else
{
OOBB worldOOBB = ObjectBounds.CalcWorldOOBB(sceneObject, boundsQConfig);
if (worldOOBB.IsValid)
{
float t;
if (BoxMath.Raycast(ray, out t, worldOOBB.Center, worldOOBB.Size, worldOOBB.Rotation))
{
var faceDesc = BoxMath.GetFaceClosestToPoint(ray.GetPoint(t), worldOOBB.Center, worldOOBB.Size, worldOOBB.Rotation);
var hit = new GameObjectRayHit(ray, sceneObject, faceDesc.Plane.normal, t);
hitList.Add(hit);
}
}
}
}
return(hitList);
}
else
if (raycastPresicion == SceneRaycastPrecision.Box)
{
var hitList = new List <GameObjectRayHit>(10);
foreach (var nodeHit in nodeHits)
{
GameObject sceneObject = nodeHit.HitNode.Data;
if (sceneObject == null || !sceneObject.activeInHierarchy)
{
continue;
}
Renderer renderer = sceneObject.GetComponent <Renderer>();
if (renderer != null && !renderer.isVisible)
{
continue;
}
OOBB worldOOBB = ObjectBounds.CalcWorldOOBB(sceneObject, boundsQConfig);
if (worldOOBB.IsValid)
{
float t;
if (BoxMath.Raycast(ray, out t, worldOOBB.Center, worldOOBB.Size, worldOOBB.Rotation))
{
var faceDesc = BoxMath.GetFaceClosestToPoint(ray.GetPoint(t), worldOOBB.Center, worldOOBB.Size, worldOOBB.Rotation);
var hit = new GameObjectRayHit(ray, sceneObject, faceDesc.Plane.normal, t);
hitList.Add(hit);
}
}
}
return(hitList);
}
return(new List <GameObjectRayHit>());
}
public static ObjectSnapResult SnapHierarchy(GameObject root, ObjectSnapConfig snapConfig)
{
const float collectEps = 1e-2f;
const float collectBoxScale = 1e-3f;
bool hierarchyHasMeshes = root.HierarchyHasMesh();
bool hierarchyHasSprites = root.HierarchyHasSprite();
if (!hierarchyHasMeshes && !hierarchyHasSprites)
{
return(new ObjectSnapResult());
}
var boundsQConfig = new ObjectBounds.QueryConfig();
boundsQConfig.ObjectTypes = GameObjectType.Sprite | GameObjectType.Mesh;
bool isSurfaceSpherical = snapConfig.SurfaceType == Type.SphericalMesh;
bool isSurfaceTerrain = snapConfig.SurfaceType == Type.UnityTerrain || snapConfig.SurfaceType == Type.TerrainMesh;
bool isSurfaceUnityTerrain = snapConfig.SurfaceType == Type.UnityTerrain;
var raycaster = CreateSurfaceRaycaster(snapConfig.SurfaceType, snapConfig.SurfaceObject, true);
if (snapConfig.SurfaceType != Type.SceneGrid)
{
Transform rootTransform = root.transform;
if (snapConfig.AlignAxis)
{
if (isSurfaceTerrain)
{
rootTransform.Align(Vector3.up, snapConfig.AlignmentAxis);
OOBB hierarchyOOBB = ObjectBounds.CalcHierarchyWorldOOBB(root, boundsQConfig);
if (!hierarchyOOBB.IsValid)
{
return(new ObjectSnapResult());
}
BoxFace pivotFace = BoxMath.GetMostAlignedFace(hierarchyOOBB.Center, hierarchyOOBB.Size, hierarchyOOBB.Rotation, -Vector3.up);
var collectedVerts = ObjectVertexCollect.CollectHierarchyVerts(root, pivotFace, collectBoxScale, collectEps);
if (collectedVerts.Count != 0)
{
Vector3 vertsCenter = Vector3Ex.GetPointCloudCenter(collectedVerts);
Ray ray = new Ray(vertsCenter + Vector3.up * 1e-3f, -Vector3.up);
GameObjectRayHit surfaceHit = raycaster.Raycast(ray);
if (surfaceHit != null)
{
Vector3 alignmentAxis = surfaceHit.HitNormal;
if (isSurfaceUnityTerrain)
{
Terrain terrain = snapConfig.SurfaceObject.GetComponent <Terrain>();
alignmentAxis = terrain.GetInterpolatedNormal(surfaceHit.HitPoint);
}
Quaternion appliedRotation = rootTransform.Align(alignmentAxis, snapConfig.AlignmentAxis);
hierarchyOOBB = ObjectBounds.CalcHierarchyWorldOOBB(root, boundsQConfig);
appliedRotation.RotatePoints(collectedVerts, rootTransform.position);
Vector3 sitOnPlaneOffset = Surface.CalculateSitOnSurfaceOffset(hierarchyOOBB, new Plane(Vector3.up, surfaceHit.HitPoint), 0.1f);
rootTransform.position += sitOnPlaneOffset;
hierarchyOOBB.Center += sitOnPlaneOffset;
Vector3Ex.OffsetPoints(collectedVerts, sitOnPlaneOffset);
Vector3 embedVector = Surface.CalculateEmbedVector(collectedVerts, snapConfig.SurfaceObject, -Vector3.up, snapConfig.SurfaceType);
rootTransform.position += (embedVector + alignmentAxis * snapConfig.OffsetFromSurface);
return(new ObjectSnapResult(new Plane(alignmentAxis, surfaceHit.HitPoint), surfaceHit.HitPoint));
}
}
}
else
{
if (!isSurfaceSpherical)
{
rootTransform.Align(snapConfig.SurfaceHitNormal, snapConfig.AlignmentAxis);
OOBB hierarchyOOBB = ObjectBounds.CalcHierarchyWorldOOBB(root, boundsQConfig);
if (!hierarchyOOBB.IsValid)
{
return(new ObjectSnapResult());
}
BoxFace pivotFace = BoxMath.GetMostAlignedFace(hierarchyOOBB.Center, hierarchyOOBB.Size, hierarchyOOBB.Rotation, -snapConfig.SurfaceHitNormal);
var collectedVerts = ObjectVertexCollect.CollectHierarchyVerts(root, pivotFace, collectBoxScale, collectEps);
if (collectedVerts.Count != 0)
{
Vector3 vertsCenter = Vector3Ex.GetPointCloudCenter(collectedVerts);
// Note: Cast the ray from far away enough so that we don't cast from the interior of the mesh.
// This can happen when the object is embedded inside the mesh surface.
AABB surfaceAABB = ObjectBounds.CalcMeshWorldAABB(snapConfig.SurfaceObject);
float sphereRadius = surfaceAABB.Extents.magnitude;
Vector3 rayOrigin = vertsCenter + snapConfig.SurfaceHitNormal * sphereRadius;
Ray ray = new Ray(rayOrigin, -snapConfig.SurfaceHitNormal);
GameObjectRayHit surfaceHit = raycaster.Raycast(ray);
if (surfaceHit != null)
{
Vector3 alignmentAxis = surfaceHit.HitNormal;
Quaternion appliedRotation = rootTransform.Align(alignmentAxis, snapConfig.AlignmentAxis);
hierarchyOOBB = ObjectBounds.CalcHierarchyWorldOOBB(root, boundsQConfig);
appliedRotation.RotatePoints(collectedVerts, rootTransform.position);
Vector3 sitOnPlaneOffset = Surface.CalculateSitOnSurfaceOffset(hierarchyOOBB, surfaceHit.HitPlane, 0.0f);
rootTransform.position += sitOnPlaneOffset;
hierarchyOOBB.Center += sitOnPlaneOffset;
Vector3Ex.OffsetPoints(collectedVerts, sitOnPlaneOffset);
return(new ObjectSnapResult(new Plane(alignmentAxis, surfaceHit.HitPoint), surfaceHit.HitPoint));
}
}
}
else
{
Transform surfaceObjectTransform = snapConfig.SurfaceObject.transform;
Vector3 sphereCenter = surfaceObjectTransform.position;
Vector3 radiusDir = (rootTransform.position - sphereCenter).normalized;
float sphereRadius = surfaceObjectTransform.lossyScale.GetMaxAbsComp() * 0.5f;
rootTransform.Align(radiusDir, snapConfig.AlignmentAxis);
OOBB hierarchyOOBB = ObjectBounds.CalcHierarchyWorldOOBB(root, boundsQConfig);
if (!hierarchyOOBB.IsValid)
{
return(new ObjectSnapResult());
}
BoxFace pivotFace = BoxMath.GetMostAlignedFace(hierarchyOOBB.Center, hierarchyOOBB.Size, hierarchyOOBB.Rotation, -radiusDir);
var collectedVerts = ObjectVertexCollect.CollectHierarchyVerts(root, pivotFace, collectBoxScale, collectEps);
Vector3 sitPoint = sphereCenter + radiusDir * sphereRadius;
Plane sitPlane = new Plane(radiusDir, sitPoint);
Vector3 sitOnPlaneOffset = Surface.CalculateSitOnSurfaceOffset(hierarchyOOBB, sitPlane, 0.0f);
rootTransform.position += sitOnPlaneOffset;
hierarchyOOBB.Center += sitOnPlaneOffset;
Vector3Ex.OffsetPoints(collectedVerts, sitOnPlaneOffset);
return(new ObjectSnapResult(sitPlane, sitPoint));
}
}
}
else
{
OOBB hierarchyOOBB = ObjectBounds.CalcHierarchyWorldOOBB(root, boundsQConfig);
if (!hierarchyOOBB.IsValid)
{
return(new ObjectSnapResult());
}
if (isSurfaceTerrain || (!isSurfaceSpherical && snapConfig.SurfaceType == Type.Mesh))
{
Ray ray = new Ray(hierarchyOOBB.Center, isSurfaceTerrain ? -Vector3.up : -snapConfig.SurfaceHitNormal);
GameObjectRayHit surfaceHit = raycaster.Raycast(ray);
if (surfaceHit != null)
{
Vector3 sitOnPlaneOffset = Surface.CalculateSitOnSurfaceOffset(hierarchyOOBB, surfaceHit.HitPlane, 0.0f);
rootTransform.position += sitOnPlaneOffset;
hierarchyOOBB.Center += sitOnPlaneOffset;
if (isSurfaceTerrain)
{
BoxFace pivotFace = BoxMath.GetMostAlignedFace(hierarchyOOBB.Center, hierarchyOOBB.Size, hierarchyOOBB.Rotation, -surfaceHit.HitNormal);
var collectedVerts = ObjectVertexCollect.CollectHierarchyVerts(root, pivotFace, collectBoxScale, collectEps);
Vector3 embedVector = Surface.CalculateEmbedVector(collectedVerts, snapConfig.SurfaceObject, -surfaceHit.HitNormal, snapConfig.SurfaceType);
rootTransform.position += (embedVector + surfaceHit.HitNormal * snapConfig.OffsetFromSurface);
}
return(new ObjectSnapResult(surfaceHit.HitPlane, surfaceHit.HitPoint));
}
}
else
if (isSurfaceSpherical)
{
Transform surfaceObjectTransform = snapConfig.SurfaceObject.transform;
Vector3 sphereCenter = surfaceObjectTransform.position;
Vector3 radiusDir = (rootTransform.position - sphereCenter).normalized;
float sphereRadius = surfaceObjectTransform.lossyScale.GetMaxAbsComp() * 0.5f;
BoxFace pivotFace = BoxMath.GetMostAlignedFace(hierarchyOOBB.Center, hierarchyOOBB.Size, hierarchyOOBB.Rotation, -radiusDir);
var collectedVerts = ObjectVertexCollect.CollectHierarchyVerts(root, pivotFace, collectBoxScale, collectEps);
Vector3 sitPoint = sphereCenter + radiusDir * sphereRadius;
Plane sitPlane = new Plane(radiusDir, sitPoint);
Vector3 sitOnPlaneOffset = Surface.CalculateSitOnSurfaceOffset(hierarchyOOBB, sitPlane, 0.0f);
rootTransform.position += sitOnPlaneOffset;
hierarchyOOBB.Center += sitOnPlaneOffset;
Vector3Ex.OffsetPoints(collectedVerts, sitOnPlaneOffset);
return(new ObjectSnapResult(sitPlane, sitPoint));
}
}
}
if (snapConfig.SurfaceType == Type.SceneGrid)
{
OOBB hierarchyOOBB = ObjectBounds.CalcHierarchyWorldOOBB(root, boundsQConfig);
if (!hierarchyOOBB.IsValid)
{
return(new ObjectSnapResult());
}
Transform rootTransform = root.transform;
if (snapConfig.AlignAxis)
{
rootTransform.Align(snapConfig.SurfaceHitNormal, snapConfig.AlignmentAxis);
hierarchyOOBB = ObjectBounds.CalcHierarchyWorldOOBB(root, boundsQConfig);
}
rootTransform.position += Surface.CalculateSitOnSurfaceOffset(hierarchyOOBB, snapConfig.SurfaceHitPlane, snapConfig.OffsetFromSurface);
return(new ObjectSnapResult(snapConfig.SurfaceHitPlane, snapConfig.SurfaceHitPlane.ProjectPoint(hierarchyOOBB.Center)));
}
return(new ObjectSnapResult());
}
