/// <summary>
/// Performs a raycast and returns a list of hits for all objects whose meshes
/// are intersected by the specified ray.
/// </summary>
public List <GameObjectRayHit> RaycastAllMesh(Ray ray)
{
// First, we will gather the objects whos boxes are intersected by the ray. If
// no such objects exist, we will return an empty list.
List <GameObjectRayHit> allBoxHits = RaycastAllBox(ray);
if (allBoxHits.Count == 0)
{
return(new List <GameObjectRayHit>());
}
// Now we will loop through all these objects and identify the ones whose meshes
// are hit by the ray.
var allMeshObjectHits = new List <GameObjectRayHit>(allBoxHits.Count);
Octave3DMeshDatabase octave3DMeshDatabase = Octave3DMeshDatabase.Get();
foreach (var boxHit in allBoxHits)
{
// Store the object for easy access
GameObject hitObject = boxHit.HitObject;
if (hitObject == null)
{
continue;
}
if (!hitObject.activeInHierarchy)
{
continue;
}
Renderer renderer = hitObject.GetComponent <Renderer>();
if (!renderer.enabled)
{
continue;
}
// Store the object's mesh. If the object doesn't have a mesh, we will ignore it
Mesh objectMesh = hitObject.GetMeshFromFilterOrSkinnedMeshRenderer();
if (objectMesh == null)
{
continue;
}
// Check if the ray intersects the mesh
Octave3DMesh octave3DMesh = octave3DMeshDatabase.GetOctave3DMesh(objectMesh);
MeshRayHit meshRayHit = octave3DMesh.Raycast(ray, hitObject.transform.GetWorldMatrix());
// If the mesh was hit by the ray, we will store the hit info inside the output array
if (meshRayHit != null)
{
allMeshObjectHits.Add(new GameObjectRayHit(ray, hitObject, null, meshRayHit, null, null));
}
}
return(allMeshObjectHits);
}
public override bool Raycast(Ray ray, out Octave3DColliderRayHit colliderRayHit)
{
colliderRayHit = null;
MeshRayHit meshRayHit = Mesh.Raycast(ray, _meshTransform);
if (meshRayHit != null)
{
colliderRayHit = new Octave3DColliderRayHit(ray, meshRayHit.HitEnter, meshRayHit.HitPoint, meshRayHit.HitNormal, this);
}
return(colliderRayHit != null);
}
public GameObjectRayHit(Ray ray, GameObject hitObject, OrientedBoxRayHit objectBoxHit, MeshRayHit objectMeshHit, TerrainRayHit objectTerrainHit, SpriteRayHit objectSpriteHit)
{
_ray = ray;
_hitObject = hitObject;
// Only one kind of entity can be registered as a hit, so we will take the first
// non-null hit instance using the following priority: terrain, mesh, sprite, box.
if (objectTerrainHit != null)
{
_objectTerrainHit = objectTerrainHit;
_objectBoxHit = null;
_objectMeshHit = null;
_objectSpriteHit = null;
}
else
if (objectMeshHit != null)
{
_objectTerrainHit = null;
_objectBoxHit = null;
_objectMeshHit = objectMeshHit;
_objectSpriteHit = null;
}
else
if (objectSpriteHit != null)
{
_objectTerrainHit = null;
_objectBoxHit = null;
_objectMeshHit = null;
_objectSpriteHit = objectSpriteHit;
}
if (objectBoxHit != null)
{
_objectTerrainHit = null;
_objectBoxHit = objectBoxHit;
_objectMeshHit = null;
_objectSpriteHit = null;
}
}
public void UpdateForMouseMovement()
{
if (!_isActive)
{
return;
}
if (MouseButtonStates.Instance.IsMouseButtonDown(MouseButton.Left))
{
_state = ObjectVertexSnapSessionState.SnapToDestination;
}
else
{
_state = ObjectVertexSnapSessionState.SelectSourceVertex;
}
if (_state == ObjectVertexSnapSessionState.SelectSourceVertex)
{
if (_sourceObjects == null || _sourceObjects.Count == 0)
{
_objectMask.ObjectCollectionMask.UnmaskAll();
MouseCursorRayHit cursorRayHit = GetCursorRayHit();
if (cursorRayHit.WasAnObjectHit)
{
GameObjectRayHit objectRayHit = cursorRayHit.ClosestObjectRayHit;
MeshRayHit meshRayHit = objectRayHit.ObjectMeshHit;
if (meshRayHit != null)
{
Octave3DMesh octaveMesh = meshRayHit.HitMesh;
Triangle3D sourceTriangle = octaveMesh.GetTriangle(meshRayHit.HitTriangleIndex);
sourceTriangle.TransformPoints(objectRayHit.HitObject.transform.localToWorldMatrix);
_sourceVertex = sourceTriangle.GetPointClosestToPoint(meshRayHit.HitPoint);
_sourceObject = objectRayHit.HitObject;
_objectMask.ObjectCollectionMask.Mask(_sourceObject.transform.root.gameObject.GetAllChildrenIncludingSelf());
}
else
{
SpriteRenderer spriteRenderer = objectRayHit.HitObject.GetComponent <SpriteRenderer>();
if (spriteRenderer != null)
{
_sourceObject = objectRayHit.HitObject;
_sourceVertex = Vector3Extensions.GetClosestPointToPoint(objectRayHit.ObjectBoxHit.HitBox.GetCenterAndCornerPoints(), objectRayHit.HitPoint);
_objectMask.ObjectCollectionMask.Mask(_sourceObject.transform.root.gameObject.GetAllChildrenIncludingSelf());
}
}
}
}
else
{
MouseCursorRayHit cursorRayHit = GetCursorRayHit();
if (cursorRayHit.WasAnObjectHit)
{
GameObjectRayHit objectRayHit = cursorRayHit.ClosestObjectRayHit;
MeshRayHit meshRayHit = objectRayHit.ObjectMeshHit;
if (meshRayHit != null)
{
Octave3DMesh octaveMesh = meshRayHit.HitMesh;
Triangle3D sourceTriangle = octaveMesh.GetTriangle(meshRayHit.HitTriangleIndex);
sourceTriangle.TransformPoints(objectRayHit.HitObject.transform.localToWorldMatrix);
_sourceVertex = sourceTriangle.GetPointClosestToPoint(meshRayHit.HitPoint);
}
else
{
SpriteRenderer spriteRenderer = objectRayHit.HitObject.GetComponent <SpriteRenderer>();
if (spriteRenderer != null)
{
_sourceVertex = Vector3Extensions.GetClosestPointToPoint(objectRayHit.ObjectBoxHit.HitBox.GetCenterAndCornerPoints(), objectRayHit.HitPoint);
}
}
}
foreach (var parent in _sourceParents)
{
_objectMask.ObjectCollectionMask.Mask(parent.GetAllChildrenIncludingSelf());
}
}
}
else
{
MouseCursorRayHit cursorRayHit = GetCursorRayHit();
if (cursorRayHit.WasAnythingHit)
{
bool useGridCellHit = false;
if (!cursorRayHit.WasAnObjectHit)
{
useGridCellHit = true;
}
else
if (cursorRayHit.WasAnObjectHit && cursorRayHit.WasACellHit)
{
float gridCellHitEnter = cursorRayHit.GridCellRayHit.HitEnter;
float objectHitEnter = cursorRayHit.ClosestObjectRayHit.HitEnter;
if (gridCellHitEnter < Mathf.Max(0.0f, (objectHitEnter - 1e-3f)))
{
useGridCellHit = true;
}
}
if (useGridCellHit)
{
XZGridCell hitCell = cursorRayHit.GridCellRayHit.HitCell;
XZOrientedQuad3D cellQuad = hitCell.Quad;
_destinationObject = null;
_destinationGridCell = hitCell;
_snapPosition = cellQuad.GetPointClosestToPoint(cursorRayHit.GridCellRayHit.HitPoint, true);
SnapToDestination();
}
else
{
GameObjectRayHit objectRayHit = cursorRayHit.ClosestObjectRayHit;
MeshRayHit meshRayHit = objectRayHit.ObjectMeshHit;
if (meshRayHit != null)
{
_destinationObject = objectRayHit.HitObject;
Triangle3D destinationTriangle = meshRayHit.HitMesh.GetTriangle(meshRayHit.HitTriangleIndex);
destinationTriangle.TransformPoints(_destinationObject.transform.localToWorldMatrix);
_destinationGridCell = null;
_snapPosition = destinationTriangle.GetPointClosestToPoint(meshRayHit.HitPoint);
SnapToDestination();
}
else
{
SpriteRenderer spriteRenderer = objectRayHit.HitObject.GetComponent <SpriteRenderer>();
if (spriteRenderer != null)
{
_destinationGridCell = null;
_destinationObject = objectRayHit.HitObject;
_snapPosition = Vector3Extensions.GetClosestPointToPoint(objectRayHit.ObjectBoxHit.HitBox.GetCenterAndCornerPoints(), objectRayHit.HitPoint);
SnapToDestination();
}
}
}
}
}
}
