private CollisionTriangle Raycast(FRay ray)
{
if (World.Map == null || ActiveCollisionMesh == null)
{
return(null);
}
CollisionTriangle closestResult = null;
float closestDistance = float.MaxValue;
foreach (var tri in ActiveCollisionMesh.Triangles)
{
float dist = float.MaxValue;
if (WMath.RayIntersectsTriangle(ray, tri.Vertices[1], tri.Vertices[0], tri.Vertices[2], true, out dist))
{
if (dist < closestDistance)
{
closestDistance = dist;
closestResult = tri;
}
}
}
return(closestResult);
}
private void AddTriangleToSelection(CollisionTriangle tri)
{
tri.Select();
int prev_count = EditorSelection.SelectedObjects.Count;
EditorSelection.AddToSelection(tri);
if (prev_count == 1)
{
EditorSelection.SelectedObjects[0].Properties.PropertyChanged += OnTriPropertyChanged;
}
OnSelectionChanged();
}
private void RemoveTriangleFromSelection(CollisionTriangle tri)
{
tri.Deselect();
if (tri == EditorSelection.SelectedObjects[0])
{
EditorSelection.SelectedObjects[0].Properties.PropertyChanged -= OnTriPropertyChanged;
}
EditorSelection.SelectedObjects.Remove(tri);
if (EditorSelection.SelectedObjects.Count > 1)
{
EditorSelection.SelectedObjects[0].Properties.PropertyChanged += OnTriPropertyChanged;
}
OnSelectionChanged();
}
private float GetCollisionDistanceFromCamera()
{
if (World.Map == null)
{
return(-1);
}
List <WCollisionMesh> meshes;
if (World.Map.FocusedScene is WStage)
{
// If a stage is selected, raycast against the collision meshes for all rooms that are loaded.
meshes = new List <WCollisionMesh>();
foreach (var scene in World.Map.SceneList)
{
meshes.AddRange(scene.GetChildrenOfType <WCollisionMesh>());
}
}
else
{
// If a room is selected, raycast against the collision mesh for only that room.
meshes = World.Map.FocusedScene.GetChildrenOfType <WCollisionMesh>();
}
if (meshes.Count == 0)
{
return(-1);
}
WCamera camera = World.GetFocusedSceneView().ViewCamera;
Vector3 dir = Vector3.Transform(new Vector3(0.0f, 0.0f, -1.0f), camera.Transform.Rotation);
dir.Normalize();
FRay ray = new FRay(camera.Transform.Position, dir);
CollisionTriangle closestResult = null;
float closestDistance = float.MaxValue;
foreach (var mesh in meshes)
{
foreach (var tri in mesh.Triangles)
{
float dist = float.MaxValue;
if (WMath.RayIntersectsTriangle(ray, tri.Vertices[1], tri.Vertices[0], tri.Vertices[2], true, out dist))
{
if (dist < closestDistance)
{
closestDistance = dist;
closestResult = tri;
}
}
}
}
if (closestResult == null)
{
return(-1.0f);
}
return(closestDistance);
}
