private void DoOrbitcamUpdate(float deltaTime)
{
float orbitSensitivityScale = 0.02f; // Angle Axis expects rads, but we have... pixels, so we just move it way down by a factor.
Quaternion deltaRot = Quaternion.FromAxisAngle(new Vector3(1, 0, 0), -WInput.MouseDelta.Y * MouseSensitivity * deltaTime * orbitSensitivityScale) * Quaternion.FromAxisAngle(new Vector3(0, 1, 0), -WInput.MouseDelta.X * MouseSensitivity * deltaTime * orbitSensitivityScale);
Transform.Rotation *= deltaRot;
Vector3 moveDir = Vector3.Zero;
if (WInput.GetKey(System.Windows.Input.Key.Q))
{
moveDir -= Vector3.UnitY;
}
if (WInput.GetKey(System.Windows.Input.Key.E))
{
moveDir += Vector3.UnitY;
}
if (moveDir.Length > 0)
{
moveDir.Normalize();
m_orbitPivot += moveDir * (MoveSpeed / 2) * deltaTime;
}
m_orbitCameraDistance += -WInput.MouseScrollDelta * 50 * deltaTime;
m_orbitCameraDistance = WMath.Clamp(m_orbitCameraDistance, 100, 10000);
Transform.Position = m_orbitPivot + Vector3.Transform(new Vector3(0, 0, m_orbitCameraDistance), Transform.Rotation);
}
private void DoFlycamUpdate(float deltaTime)
{
Vector3 moveDir = Vector3.Zero;
if (WInput.GetKey(System.Windows.Input.Key.W))
{
moveDir -= Vector3.UnitZ;
}
if (WInput.GetKey(System.Windows.Input.Key.S))
{
moveDir += Vector3.UnitZ;
}
if (WInput.GetKey(System.Windows.Input.Key.D))
{
moveDir += Vector3.UnitX;
}
if (WInput.GetKey(System.Windows.Input.Key.A))
{
moveDir -= Vector3.UnitX;
}
// If they're holding down the shift key adjust their FOV when they scroll, otherwise adjust move speed.
MoveSpeed += WInput.MouseScrollDelta * 100 * deltaTime;
MoveSpeed = WMath.Clamp(MoveSpeed, 100, 8000);
if (WInput.GetMouseButton(1))
{
Rotate(deltaTime, WInput.MouseDelta.X, WInput.MouseDelta.Y);
}
float moveSpeed = WInput.GetKey(System.Windows.Input.Key.LeftShift) ? MoveSpeed * 3f : MoveSpeed;
// Make it relative to the current rotation.
moveDir = Vector3.Transform(moveDir, Transform.Rotation);
// Do Q and E after we transform the moveDir so they're always in worldspace.
if (WInput.GetKey(System.Windows.Input.Key.Q))
{
moveDir -= Vector3.UnitY;
}
if (WInput.GetKey(System.Windows.Input.Key.E))
{
moveDir += Vector3.UnitY;
}
// Normalize the move direction
moveDir.NormalizeFast();
// Early out if we're not moving this frame.
if (moveDir.LengthFast < 0.1f)
{
return;
}
Transform.Position += Vector3.Multiply(moveDir, moveSpeed * deltaTime);
}
private void CheckForObjectSelectionChange(WSceneView view)
{
// If we have a gizmo and we're transforming it, don't check for selection change.
if (m_transformGizmo != null && m_transformGizmo.IsTransforming)
{
return;
}
if (WInput.GetMouseButtonDown(0) && !WInput.GetMouseButton(1))
{
FRay mouseRay = view.ProjectScreenToWorld(WInput.MousePosition);
WActorNode addedActor = Raycast(mouseRay);
// Check the behaviour of this click to determine appropriate selection modification behaviour.
// Click w/o Modifiers = Clear Selection, add result to selection
// Click /w Ctrl = Toggle Selection State
// Click /w Shift = Add to Selection
bool ctrlPressed = WInput.GetKey(Key.LeftCtrl) || WInput.GetKey(Key.RightCtrl);
bool shiftPressed = WInput.GetKey(Key.LeftShift) || WInput.GetKey(Key.RightShift);
if (!ctrlPressed & !shiftPressed)
{
ModifySelection(SelectionType.Add, addedActor, true);
//m_selectionList.Clear();
//if (addedActor != null) m_selectionList.Add(addedActor);
}
else if (addedActor != null && (ctrlPressed && !shiftPressed))
{
if (m_selectionList.Contains(addedActor))
{
ModifySelection(SelectionType.Remove, addedActor, false);
}
//m_selectionList.Remove(addedActor);
else
{
ModifySelection(SelectionType.Add, addedActor, false);
}
//m_selectionList.Add(addedActor);
}
else if (addedActor != null && shiftPressed)
{
if (!m_selectionList.Contains(addedActor))
{
ModifySelection(SelectionType.Add, addedActor, false);
}
//m_selectionList.Add(addedActor);
}
if (m_transformGizmo != null && m_selectionList.Count > 0)
{
m_transformGizmo.SetPosition(m_selectionList[0].Transform.Position);
m_transformGizmo.SetLocalRotation(m_selectionList[0].Transform.Rotation);
}
}
}
private void CheckForObjectSelectionChange(WSceneView view)
{
// If we have a gizmo and we're transforming it, don't check for selection change.
if (m_transformGizmo != null && m_transformGizmo.IsTransforming)
{
return;
}
if (WInput.GetMouseButtonDown(0) && !WInput.GetMouseButton(1))
{
FRay mouseRay = view.ProjectScreenToWorld(WInput.MousePosition);
var addedActor = Raycast(mouseRay);
// Check the behaviour of this click to determine appropriate selection modification behaviour.
// Click w/o Modifiers = Clear Selection, add result to selection
// Click /w Ctrl = Toggle Selection State
// Click /w Shift = Add to Selection
bool ctrlPressed = WInput.GetKey(Key.LeftCtrl) || WInput.GetKey(Key.RightCtrl);
bool shiftPressed = WInput.GetKey(Key.LeftShift) || WInput.GetKey(Key.RightShift);
if (!ctrlPressed & !shiftPressed)
{
EditorSelection.ClearSelection();
if (addedActor != null)
{
EditorSelection.AddToSelection(addedActor);
}
}
else if (addedActor != null && (ctrlPressed && !shiftPressed))
{
if (addedActor.IsSelected)
{
EditorSelection.RemoveFromSelection(addedActor);
}
else
{
EditorSelection.AddToSelection(addedActor);
}
}
else if (addedActor != null && shiftPressed)
{
if (!EditorSelection.SelectedObjects.Contains(addedActor))
{
EditorSelection.AddToSelection(addedActor);
}
}
UpdateGizmoTransform();
}
}
public bool TransformFromInput(FRay ray, WSceneView view)
{
if (m_mode != FTransformMode.Translation)
{
WrapCursor();
}
// Store the cursor position in viewport coordinates.
Vector2 screenDimensions = App.GetScreenGeometry();
Vector2 cursorPos = App.GetCursorPosition();
Vector2 mouseCoords = new Vector2(((2f * cursorPos.X) / screenDimensions.X) - 1f, (1f - ((2f * cursorPos.Y) / screenDimensions.Y))); //[-1,1] range
bool shiftPressed = WInput.GetKey(Key.LeftShift) || WInput.GetKey(Key.RightShift);
if (m_mode == FTransformMode.Translation)
{
// Create a Translation Plane
Vector3 axisA, axisB;
if (GetNumSelectedAxes() == 1)
{
if (m_selectedAxes == FSelectedAxes.X)
{
axisB = Vector3.UnitX;
}
else if (m_selectedAxes == FSelectedAxes.Y)
{
axisB = Vector3.UnitY;
}
else
{
axisB = Vector3.UnitZ;
}
Vector3 dirToCamera = (m_position - view.GetCameraPos()).Normalized();
axisA = Vector3.Cross(axisB, dirToCamera);
}
else
{
axisA = ContainsAxis(m_selectedAxes, FSelectedAxes.X) ? Vector3.UnitX : Vector3.UnitZ;
axisB = ContainsAxis(m_selectedAxes, FSelectedAxes.Y) ? Vector3.UnitY : Vector3.UnitZ;
}
Vector3 planeNormal = Vector3.Cross(axisA, axisB).Normalized();
m_translationPlane = new FPlane(planeNormal, m_position);
float intersectDist;
if (m_translationPlane.RayIntersectsPlane(ray, out intersectDist))
{
Vector3 hitPos = ray.Origin + (ray.Direction * intersectDist);
Vector3 localDelta = Vector3.Transform(hitPos - m_position, m_rotation.Inverted());
// Calculate a new position
Vector3 newPos = m_position;
if (ContainsAxis(m_selectedAxes, FSelectedAxes.X))
{
newPos += Vector3.Transform(Vector3.UnitX, m_rotation) * localDelta.X;
}
if (ContainsAxis(m_selectedAxes, FSelectedAxes.Y))
{
newPos += Vector3.Transform(Vector3.UnitY, m_rotation) * localDelta.Y;
}
if (ContainsAxis(m_selectedAxes, FSelectedAxes.Z))
{
newPos += Vector3.Transform(Vector3.UnitZ, m_rotation) * localDelta.Z;
}
if (shiftPressed)
{
// Round to nearest 100 unit increment while shift is held down.
newPos.X = (float)Math.Round(newPos.X / 100f) * 100f;
newPos.Y = (float)Math.Round(newPos.Y / 100f) * 100f;
newPos.Z = (float)Math.Round(newPos.Z / 100f) * 100f;
}
// Check the new location to see if it's skyrocked off into the distance due to near-plane raytracing issues.
Vector3 newPosDirToCamera = (newPos - view.GetCameraPos()).Normalized();
float dot = Math.Abs(Vector3.Dot(planeNormal, newPosDirToCamera));
//Console.WriteLine("hitPos: {0} localOffset: {1} newPos: {2}, dotResult: {3}", hitPos, localOffset, newPos, dot);
if (dot < 0.02f)
{
return(false);
}
// This is used to set the offset to the gizmo the mouse cursor is from the origin of the gizmo on the first frame
// that you click on the gizmo.
if (!m_hasSetMouseOffset)
{
m_translateOffset = m_position - newPos;
m_deltaTranslation = Vector3.Zero;
m_hasSetMouseOffset = true;
return(false);
}
// Apply Translation
m_deltaTranslation = Vector3.Transform(newPos - m_position + m_translateOffset, m_rotation.Inverted());
if (!ContainsAxis(m_selectedAxes, FSelectedAxes.X))
{
m_deltaTranslation.X = 0f;
}
if (!ContainsAxis(m_selectedAxes, FSelectedAxes.Y))
{
m_deltaTranslation.Y = 0f;
}
if (!ContainsAxis(m_selectedAxes, FSelectedAxes.Z))
{
m_deltaTranslation.Z = 0f;
}
m_totalTranslation += m_deltaTranslation;
m_position += Vector3.Transform(m_deltaTranslation, m_rotation);
if (!m_hasTransformed && (m_deltaTranslation != Vector3.Zero))
{
m_hasTransformed = true;
}
return(m_hasTransformed);
}
else
{
// Our raycast missed the plane
m_deltaTranslation = Vector3.Zero;
return(false);
}
}
else if (m_mode == FTransformMode.Rotation)
{
Vector3 rotationAxis;
if (m_selectedAxes == FSelectedAxes.X)
{
rotationAxis = Vector3.UnitX;
}
else if (m_selectedAxes == FSelectedAxes.Y)
{
rotationAxis = Vector3.UnitY;
}
else
{
rotationAxis = Vector3.UnitZ;
}
// Convert these from [0-1] to [-1, 1] to match our mouse coords.
Vector2 lineOrigin = (view.UnprojectWorldToViewport(m_hitPoint) * 2) - Vector2.One;
Vector2 lineEnd = (view.UnprojectWorldToViewport(m_hitPoint + m_moveDir) * 2) - Vector2.One;
lineOrigin.Y = -lineOrigin.Y;
lineEnd.Y = -lineEnd.Y;
Vector2 lineDir = (lineEnd - lineOrigin).Normalized();
float rotAmount = Vector2.Dot(lineDir, mouseCoords + m_wrapOffset - lineOrigin) * 180f;
if (float.IsNaN(rotAmount))
{
Console.WriteLine("rotAmountNaN!");
return(false);
}
if (!m_hasSetMouseOffset)
{
m_rotateOffset = -rotAmount;
m_deltaRotation = Quaternion.Identity;
m_hasSetMouseOffset = true;
return(false);
}
// Apply Rotation
rotAmount += m_rotateOffset;
if (shiftPressed)
{
// Round to nearest 45 degree increment while shift is held down.
rotAmount = (float)Math.Round(rotAmount / 45f) * 45f;
}
Quaternion oldRot = m_currentRotation;
m_currentRotation = Quaternion.FromAxisAngle(rotationAxis, WMath.DegreesToRadians(rotAmount));
m_deltaRotation = m_currentRotation * oldRot.Inverted();
if (m_transformSpace == FTransformSpace.Local)
{
m_rotation *= m_deltaRotation;
}
// Add to Total Rotation recorded for UI.
if (m_selectedAxes == FSelectedAxes.X)
{
m_totalRotation.X = rotAmount;
}
else if (m_selectedAxes == FSelectedAxes.Y)
{
m_totalRotation.Y = rotAmount;
}
else
{
m_totalRotation.Z = rotAmount;
}
if (!m_hasTransformed && rotAmount != 0f)
{
m_hasTransformed = true;
}
return(m_hasTransformed);
}
else if (m_mode == FTransformMode.Scale)
{
// Create a line in screen space.
// Convert these from [0-1] to [-1, 1] to match our mouse coords.
Vector2 lineOrigin = (view.UnprojectWorldToViewport(m_position) * 2) - Vector2.One;
lineOrigin.Y = -lineOrigin.Y;
// Determine the appropriate world space directoin using the selected axes and then conver this for use with
// screen-space controlls. This has to be done every frame because the axes can be flipped while the gizmo
// is transforming, so we can't pre-calculate this.
Vector3 dirX = Vector3.Transform(mFlipScaleX ? -Vector3.UnitX : Vector3.UnitX, m_rotation);
Vector3 dirY = Vector3.Transform(mFlipScaleY ? -Vector3.UnitY : Vector3.UnitY, m_rotation);
Vector3 dirZ = Vector3.Transform(mFlipScaleZ ? -Vector3.UnitZ : Vector3.UnitZ, m_rotation);
Vector2 lineDir;
// If there is only one axis, then the world space direction is the selected axis.
if (GetNumSelectedAxes() == 1)
{
Vector3 worldDir;
if (ContainsAxis(m_selectedAxes, FSelectedAxes.X))
{
worldDir = dirX;
}
if (ContainsAxis(m_selectedAxes, FSelectedAxes.Y))
{
worldDir = dirY;
}
else
{
worldDir = dirZ;
}
Vector2 worldPoint = (view.UnprojectWorldToViewport(m_position + worldDir) * 2) - Vector2.One;
worldPoint.Y = -lineOrigin.Y;
lineDir = (worldPoint - lineOrigin).Normalized();
}
// If there's two axii selected, then convert both to screen space and average them out to get the line direction.
else if (GetNumSelectedAxes() == 2)
{
Vector3 axisA = ContainsAxis(m_selectedAxes, FSelectedAxes.X) ? dirX : dirY;
Vector3 axisB = ContainsAxis(m_selectedAxes, FSelectedAxes.Z) ? dirZ : dirY;
Vector2 screenA = (view.UnprojectWorldToViewport(m_position + axisA) * 2) - Vector2.One;
screenA.Y = -screenA.Y;
Vector2 screenB = (view.UnprojectWorldToViewport(m_position + axisB) * 2) - Vector2.One;
screenB.Y = -screenB.Y;
screenA = (screenA - lineOrigin).Normalized();
screenB = (screenB - lineOrigin).Normalized();
lineDir = ((screenA + screenB) / 2f).Normalized();
}
// There's three axis, just use up.
else
{
lineDir = Vector2.UnitY;
}
float scaleAmount = Vector2.Dot(lineDir, mouseCoords + m_wrapOffset - lineOrigin) * 5f;
if (shiftPressed)
{
// Round to nearest whole number scale while shift is held down.
scaleAmount = (float)Math.Round(scaleAmount);
}
// Set their initial offset if we haven't already
if (!m_hasSetMouseOffset)
{
m_scaleOffset = -scaleAmount;
m_deltaScale = Vector3.One;
m_hasSetMouseOffset = true;
return(false);
}
// Apply the scale
scaleAmount = scaleAmount + m_scaleOffset + 1f;
// A multiplier is applied to the scale amount if it's less than one to prevent it dropping into the negatives.
// ???
if (scaleAmount < 1f)
{
scaleAmount = 1f / (-(scaleAmount - 1f) + 1f);
}
Vector3 oldScale = m_totalScale;
m_totalScale = Vector3.One;
if (ContainsAxis(m_selectedAxes, FSelectedAxes.X))
{
m_totalScale.X = scaleAmount;
}
if (ContainsAxis(m_selectedAxes, FSelectedAxes.Y))
{
m_totalScale.Y = scaleAmount;
}
if (ContainsAxis(m_selectedAxes, FSelectedAxes.Z))
{
m_totalScale.Z = scaleAmount;
}
m_deltaScale = new Vector3(m_totalScale.X / oldScale.X, m_totalScale.Y / oldScale.Y, m_totalScale.Z / oldScale.Z);
if (!m_hasTransformed && (scaleAmount != 1f))
{
m_hasTransformed = true;
}
return(m_hasTransformed);
}
return(false);
}