public Gizmo(Device1 device)
{
Mode = GizmoMode.None;
SelectedAxis = -1;
TranslationSnapValue = 1.0f;
RotationSnapValue = 5.0f;
ScaleSnapValue = 0.1f;
ScaleSensitivity = 0.2f;
_StartPosition = null;
_StartScale = null;
_StartRotation = null;
// Translation Gizmo
TranslationGizmo = new List<IModel>();
var XArrow = new OvmModel("Resources//Arrow.ovm");
XArrow.Create(device);
XArrow.Shader = new ColorShader(new Color(255, 0, 0, 255));
TranslationGizmo.Add(XArrow);
var YArrow = new OvmModel("Resources//Arrow.ovm");
YArrow.Create(device);
YArrow.Shader = new ColorShader(new Color(0, 255, 0, 255));
YArrow.Rotation.Z = 90;
TranslationGizmo.Add(YArrow);
var ZArrow = new OvmModel("Resources//Arrow.ovm");
ZArrow.Create(device);
ZArrow.Shader = new ColorShader(new Color(0, 0, 255, 255));
ZArrow.Rotation.Y = 90;
TranslationGizmo.Add(ZArrow);
// Rotation Gizmo
RotationGizmo = new List<IModel>();
var XRotatinGizmo = new OvmModel("Resources//RotationGizmo.ovm");
XRotatinGizmo.Create(device);
XRotatinGizmo.Shader = new ColorShader(new Color(255, 0, 0, 255));
RotationGizmo.Add(XRotatinGizmo);
var YRotatinGizmo = new OvmModel("Resources//RotationGizmo.ovm");
YRotatinGizmo.Create(device);
YRotatinGizmo.Shader = new ColorShader(new Color(0, 255, 0, 255));
YRotatinGizmo.Rotation.Z = 90;
RotationGizmo.Add(YRotatinGizmo);
var ZRotatinGizmo = new OvmModel("Resources//RotationGizmo.ovm");
ZRotatinGizmo.Create(device);
ZRotatinGizmo.Shader = new ColorShader(new Color(0, 0, 255, 255));
ZRotatinGizmo.Rotation.Y = 90;
RotationGizmo.Add(ZRotatinGizmo);
// Scale Gizmo
ScaleGizmo = new List<IModel>();
var XScaleArrow = new OvmModel("Resources//ScaleArrow.ovm");
XScaleArrow.Create(device);
XScaleArrow.Shader = new ColorShader(new Color(255, 0, 0, 255));
ScaleGizmo.Add(XScaleArrow);
var YScaleArrow = new OvmModel("Resources//ScaleArrow.ovm");
YScaleArrow.Create(device);
YScaleArrow.Shader = new ColorShader(new Color(0, 255, 0, 255));
YScaleArrow.Rotation.Z = 90;
ScaleGizmo.Add(YScaleArrow);
var ZScaleArrow = new OvmModel("Resources//ScaleArrow.ovm");
ZScaleArrow.Create(device);
ZScaleArrow.Shader = new ColorShader(new Color(0, 0, 255, 255));
ZScaleArrow.Rotation.Y = 90;;
ScaleGizmo.Add(ZScaleArrow);
}
public void Update(Camera camera, ViewportF view, System.Windows.Point mousePos, GameObject linkedObject)
{
UpdateModels(camera);
if (InputManager.IsLeftMouseButtonDown() && SelectedAxis != -1)
{
//Create a Ray from the mouse position
Matrix worldViewProjectionMatrix = Matrix.Identity * camera.ViewMatrix * camera.ProjectionMatrix;
Ray ray = Ray.GetPickRay((int)(mousePos.X), (int)(mousePos.Y), view, worldViewProjectionMatrix);
Plane plane;
Matrix RotationMat = Matrix.Identity;
switch (Mode)
{
case GizmoMode.None:
break;
case GizmoMode.Translate:
if (_StartPosition == null)
{
_StartPosition = new MyVector3();
_StartPosition.Vector3 = linkedObject.Transform.Position.Vector3; ;
}
Vector3 translationDelta = Vector3.Zero;
switch (SelectedAxis)
{
case 0:
plane = new Plane(_HitPosition, camera.Forward);
translationDelta = CalculateTransformDelta(plane, ray, camera);
Console.WriteLine(_HitPosition);
translationDelta = new Vector3(translationDelta.X, 0, 0);
break;
case 1:
plane = new Plane(_HitPosition, camera.Forward);
translationDelta = CalculateTransformDelta(plane, ray, camera);
Console.WriteLine(_HitPosition);
translationDelta = new Vector3(0, translationDelta.Y, 0);
break;
case 2:
plane = new Plane(_HitPosition, Vector3.Up);
translationDelta = CalculateTransformDelta(plane, ray, camera);
translationDelta = new Vector3(0, 0, translationDelta.Z);
break;
default:
break;
}
var scaledTranslationDelta = new Vector3((int)(translationDelta.X / TranslationSnapValue) * TranslationSnapValue,
(int)(translationDelta.Y / TranslationSnapValue) * TranslationSnapValue,
(int)(translationDelta.Z / TranslationSnapValue) * TranslationSnapValue);
_LastIntersectionPosition += scaledTranslationDelta;
linkedObject.Transform.Position.Vector3 += scaledTranslationDelta;
break;
case GizmoMode.Rotate:
if (_StartRotation == null)
{
_StartRotation = new MyVector3();
_StartRotation.Vector3 = linkedObject.Transform.RotationEuler.Vector3; ;
}
Vector3 RotateDelta = Vector3.Zero;
Vector3 MouseDelta = Vector3.Zero;
switch (SelectedAxis)
{
case 0:
plane = new Plane(_HitPosition, camera.Forward);
RotateDelta = CalculateTransformDelta(plane, ray, camera);
MouseDelta = new Vector3(0, RotateDelta.Y, 0);
RotateDelta = new Vector3(RotateDelta.Y, 0, 0);
break;
case 1:
plane = new Plane(_HitPosition, camera.Forward);
RotateDelta = CalculateTransformDelta(plane, ray, camera);
MouseDelta = new Vector3(RotateDelta.X, 0, 0);
RotateDelta = new Vector3(0, -RotateDelta.X, 0);
break;
case 2:
plane = new Plane(_HitPosition, camera.Up);
RotateDelta = CalculateTransformDelta(plane, ray, camera);
MouseDelta = new Vector3(0, 0, RotateDelta.Z);
RotateDelta = new Vector3(0, 0, RotateDelta.Z);
break;
default:
break;
}
RotateDelta *= 10.0f;
var scaledRotationDelta = new Vector3((int)(RotateDelta.X / RotationSnapValue) * RotationSnapValue,
(int)(RotateDelta.Y / RotationSnapValue) * RotationSnapValue,
(int)(RotateDelta.Z / RotationSnapValue) * RotationSnapValue);
_LastIntersectionPosition += MouseDelta;
linkedObject.Transform.RotationEuler.X += scaledRotationDelta.X;
linkedObject.Transform.RotationEuler.Y += scaledRotationDelta.Y;
linkedObject.Transform.RotationEuler.Z += scaledRotationDelta.Z;
break;
case GizmoMode.Scale:
Vector3 scaleDelta = Vector3.Zero;
if (_StartScale == null)
{
_StartScale = new MyVector3();
_StartScale.Vector3 = linkedObject.Transform.Scale.Vector3; ;
}
switch (SelectedAxis)
{
case 0:
plane = new Plane(_HitPosition, camera.Forward);
scaleDelta = CalculateTransformDelta(plane, ray, camera);
scaleDelta = new Vector3(scaleDelta.X, 0, 0);
break;
case 1:
plane = new Plane(_HitPosition, camera.Forward);
scaleDelta = CalculateTransformDelta(plane, ray, camera);
scaleDelta = new Vector3(0, scaleDelta.Y, 0);
break;
case 2:
plane = new Plane(_HitPosition, Vector3.Up);
scaleDelta = CalculateTransformDelta(plane, ray, camera);
scaleDelta = new Vector3(0, 0, scaleDelta.Z);
break;
default:
break;
}
var scaledScaleDelta = new Vector3((int)(scaleDelta.X / ScaleSnapValue) * ScaleSnapValue,
(int)(scaleDelta.Y / ScaleSnapValue) * ScaleSnapValue,
(int)(scaleDelta.Z / ScaleSnapValue) * ScaleSnapValue) ;
_LastIntersectionPosition += scaledScaleDelta;
RotationMat = Matrix.RotationQuaternion(linkedObject.Transform.Rotation);
scaledScaleDelta = Vector3.TransformCoordinate(scaledScaleDelta, RotationMat);
linkedObject.Transform.Scale.Vector3 += scaledScaleDelta * new Vector3(1,1,-1) ;
break;
default:
break;
}
}
else
{
if (SelectedAxis != -1 )
{
switch (Mode)
{
case GizmoMode.None:
break;
case GizmoMode.Translate:
var UndoCommand = new RelayCommand<MyVector3>(linkedObject.Transform.SetPosition);
UndoRedoStack.AddUndoCommand(UndoCommand, _StartPosition);
UndoRedoStack.ClearRedoStack();
_StartPosition = null;
break;
case GizmoMode.Rotate:
var UndoRotateCommand = new RelayCommand<MyVector3>(linkedObject.Transform.SetRotation);
UndoRedoStack.AddUndoCommand(UndoRotateCommand, _StartRotation);
UndoRedoStack.ClearRedoStack();
_StartRotation = null;
break;
case GizmoMode.Scale:
var UndoScaleCommand = new RelayCommand<MyVector3>(linkedObject.Transform.SetScale);
UndoRedoStack.AddUndoCommand(UndoScaleCommand, _StartScale);
UndoRedoStack.ClearRedoStack();
_StartScale = null;
break;
default:
break;
}
}
SelectedAxis = -1;
_LastIntersectionPosition = Vector3.Zero;
}
}
