private void HandleSelectedSegmentModifications()
{
if (selectedSegmentIndex < 0 || selectedSegmentIndex >= splineCreator.Spline.Segments.Count)
{
return;
}
if (!splineCreator.Spline.IsSegmentValid(selectedSegmentIndex))
{
return;
}
GSplineSegment segment = splineCreator.Spline.Segments[selectedSegmentIndex];
GSplineAnchor startAnchor = splineCreator.Spline.Anchors[segment.StartIndex];
GSplineAnchor endAnchor = splineCreator.Spline.Anchors[segment.EndIndex];
Vector3 worldStartPosition = splineCreator.transform.TransformPoint(startAnchor.Position);
Vector3 worldEndPosition = splineCreator.transform.TransformPoint(endAnchor.Position);
Vector3 worldStartTangent = splineCreator.transform.TransformPoint(segment.StartTangent);
Vector3 worldEndTangent = splineCreator.transform.TransformPoint(segment.EndTangent);
EditorGUI.BeginChangeCheck();
Handles.zTest = UnityEngine.Rendering.CompareFunction.Always;
worldStartTangent = Handles.PositionHandle(worldStartTangent, Quaternion.identity);
worldEndTangent = Handles.PositionHandle(worldEndTangent, Quaternion.identity);
segment.StartTangent = splineCreator.transform.InverseTransformPoint(worldStartTangent);
segment.EndTangent = splineCreator.transform.InverseTransformPoint(worldEndTangent);
if (EditorGUI.EndChangeCheck())
{
GUI.changed = true;
}
Handles.color = Color.white;
Handles.DrawLine(worldStartPosition, worldStartTangent);
Handles.DrawLine(worldEndPosition, worldEndTangent);
}
private void HandleSelectedSegmentModifications()
{
if (selectedSegmentIndex < 0 || selectedSegmentIndex >= instance.Spline.Segments.Count)
{
return;
}
if (!instance.Spline.IsSegmentValid(selectedSegmentIndex))
{
return;
}
GSplineSegment segment = instance.Spline.Segments[selectedSegmentIndex];
GSplineAnchor startAnchor = instance.Spline.Anchors[segment.StartIndex];
GSplineAnchor endAnchor = instance.Spline.Anchors[segment.EndIndex];
Vector3 worldStartTangent = startAnchor.Position + segment.StartTangent;
Vector3 worldEndTangent = endAnchor.Position + segment.EndTangent;
Handles.zTest = UnityEngine.Rendering.CompareFunction.Always;
worldStartTangent = Handles.PositionHandle(worldStartTangent, Quaternion.identity);
worldEndTangent = Handles.PositionHandle(worldEndTangent, Quaternion.identity);
segment.StartTangent = worldStartTangent - startAnchor.Position;
segment.EndTangent = worldEndTangent - endAnchor.Position;
Handles.color = Color.white;
Handles.DrawLine(startAnchor.Position, worldStartTangent);
Handles.DrawLine(endAnchor.Position, worldEndTangent);
instance.transform.position = (startAnchor.Position + endAnchor.Position) * 0.5f;
}
public Quaternion EvaluateRotation(int segmentIndex, float t)
{
GSplineSegment s = Segments[segmentIndex];
GSplineAnchor startAnchor = Anchors[s.StartIndex];
GSplineAnchor endAnchor = Anchors[s.EndIndex];
return(Quaternion.Lerp(startAnchor.Rotation, endAnchor.Rotation, t));
}
public Vector3 EvaluateScale(int segmentIndex, float t)
{
GSplineSegment s = Segments[segmentIndex];
GSplineAnchor startAnchor = Anchors[s.StartIndex];
GSplineAnchor endAnchor = Anchors[s.EndIndex];
return(Vector3.Lerp(startAnchor.Scale, endAnchor.Scale, t));
}
private void HandleAddAnchor()
{
if (showTransformGizmos)
{
return;
}
bool isLeftMouseUp = Event.current.type == EventType.MouseUp && Event.current.button == 0;
bool isShift = Event.current.shift;
bool isAlt = Event.current.alt;
if (!isLeftMouseUp)
{
return;
}
int raycastLayer = GEditorSettings.Instance.splineTools.raycastLayer;
Ray r = HandleUtility.GUIPointToWorldRay(Event.current.mousePosition);
RaycastHit hit;
if (Physics.Raycast(r, out hit, 10000, LayerMask.GetMask(LayerMask.LayerToName(raycastLayer))))
{
if (isAlt)
{
return;
}
if (!isShift)
{
selectedAnchorIndex = -1;
return;
}
Vector3 offset = splineCreator.PositionOffset;
Vector3 worldPos = hit.point + offset;
Vector3 localPos = splineCreator.transform.InverseTransformPoint(worldPos);
GSplineAnchor a = new GSplineAnchor(localPos);
splineCreator.Spline.AddAnchor(a);
if (selectedAnchorIndex >= 0 && selectedAnchorIndex < splineCreator.Spline.Anchors.Count - 1)
{
splineCreator.Spline.AddSegment(selectedAnchorIndex, splineCreator.Spline.Anchors.Count - 1);
if (autoTangent)
{
int[] segmentIndices = splineCreator.Spline.SmoothTangents(selectedAnchorIndex, splineCreator.Spline.Anchors.Count - 1);
}
else
{
}
}
selectedAnchorIndex = splineCreator.Spline.Anchors.Count - 1;
GUI.changed = true;
Event.current.Use();
}
else
{
selectedAnchorIndex = -1;
}
}
private void SnapAnchorToSurface(GSplineAnchor a)
{
Ray r = new Ray(new Vector3(a.Position.x, 10000, a.Position.z), Vector3.down);
RaycastHit hit;
if (GStylizedTerrain.Raycast(r, out hit, float.MaxValue, instance.GroupId))
{
a.Position = hit.point;
}
}
private void HandleSegmentModifications()
{
Handles.zTest = UnityEngine.Rendering.CompareFunction.Less;
List <GSplineSegment> segments = instance.Spline.Segments;
List <GSplineAnchor> anchors = instance.Spline.Anchors;
for (int i = 0; i < segments.Count; ++i)
{
if (!instance.Spline.IsSegmentValid(i))
{
continue;
}
if (i == selectedSegmentIndex)
{
HandleSelectedSegmentModifications();
}
int i0 = segments[i].StartIndex;
int i1 = segments[i].EndIndex;
GSplineAnchor a0 = anchors[i0];
GSplineAnchor a1 = anchors[i1];
Vector3 startPosition = a0.Position;
Vector3 endPosition = a1.Position;
Vector3 startTangent = startPosition + segments[i].StartTangent;
Vector3 endTangent = endPosition + segments[i].EndTangent;
Color color = i == selectedSegmentIndex ?
GGriffinSettings.Instance.SplineToolSettings.SelectedElementColor :
GGriffinSettings.Instance.SplineToolSettings.SegmentColor;
Handles.color = color;
Vector3[] bezierPoints = Handles.MakeBezierPoints(startPosition, endPosition, startTangent, endTangent, instance.Smoothness);
Handles.DrawAAPolyLine(BEZIER_WIDTH, bezierPoints);
if (GGuiEventUtilities.IsLeftMouseUp)
{
float d0 = GHandleUtility.DistanceMouseToSpline(Event.current.mousePosition, bezierPoints);
float d1 = GHandleUtility.DistanceMouseToPoint(Event.current.mousePosition, bezierPoints[0] - instance.PositionOffset);
float d2 = GHandleUtility.DistanceMouseToPoint(Event.current.mousePosition, bezierPoints[bezierPoints.Length - 1] - instance.PositionOffset);
if (d0 <= BEZIER_SELECT_DISTANCE &&
d1 > BEZIER_SELECT_DISTANCE &&
d2 > BEZIER_SELECT_DISTANCE)
{
selectedSegmentIndex = i;
if (GGuiEventUtilities.IsCtrl)
{
instance.Spline.Segments.RemoveAt(selectedSegmentIndex);
selectedSegmentIndex = -1;
GUI.changed = true;
}
//don't Use() the event here
}
}
}
Handles.zTest = UnityEngine.Rendering.CompareFunction.Always;
}
private void DrawSelectedAnchorGUI()
{
string label = "Selected Anchor";
string id = "selectedanchor" + instance.GetInstanceID().ToString();
GEditorCommon.Foldout(label, true, id, () =>
{
if (selectedAnchorIndex >= 0 && selectedAnchorIndex < instance.Spline.Anchors.Count)
{
GSplineAnchor a = instance.Spline.Anchors[selectedAnchorIndex];
GSplineAnchorInspectorDrawer.Create(a).DrawGUI();
}
else
{
EditorGUILayout.LabelField("No Anchor selected!", GEditorCommon.ItalicLabel);
}
});
}
public GSplineAnchor AddAnchorAutoTangent(Vector3 worldPositionNoOffset, int activeAnchorIndex = -1)
{
Vector3 position = worldPositionNoOffset + PositionOffset;
Quaternion rotation = InitialRotation;
Vector3 scale = InitialScale;
GSplineAnchor a = new GSplineAnchor();
a.Position = position;
a.Rotation = rotation;
a.Scale = scale;
Spline.Anchors.Add(a);
if (activeAnchorIndex >= 0 && activeAnchorIndex < Spline.Anchors.Count)
{
Spline.AddSegment(activeAnchorIndex, Spline.Anchors.Count - 1);
}
return(a);
}
public void RemoveAnchor(int index)
{
GSplineAnchor a = Anchors[index];
Segments.RemoveAll(s => s.StartIndex == index || s.EndIndex == index);
Segments.ForEach(s =>
{
if (s.StartIndex > index)
{
s.StartIndex -= 1;
}
if (s.EndIndex > index)
{
s.EndIndex -= 1;
}
});
Anchors.RemoveAt(index);
}
public Vector3 EvaluatePosition(int segmentIndex, float t)
{
GSplineSegment s = Segments[segmentIndex];
GSplineAnchor startAnchor = Anchors[s.StartIndex];
GSplineAnchor endAnchor = Anchors[s.EndIndex];
Vector3 p0 = startAnchor.Position;
Vector3 p1 = s.StartTangent;
Vector3 p2 = s.EndTangent;
Vector3 p3 = endAnchor.Position;
t = Mathf.Clamp01(t);
float oneMinusT = 1 - t;
Vector3 p =
oneMinusT * oneMinusT * oneMinusT * p0 +
3 * oneMinusT * oneMinusT * t * p1 +
3 * oneMinusT * t * t * p2 +
t * t * t * p3;
return(p);
}
public GSplineSegment AddSegment(int startIndex, int endIndex)
{
GSplineSegment s = Segments.Find(s0 =>
(s0.StartIndex == startIndex && s0.EndIndex == endIndex) ||
(s0.StartIndex == endIndex && s0.EndIndex == startIndex));
if (s != null)
{
return(s);
}
GSplineSegment newSegment = new GSplineSegment();
newSegment.StartIndex = startIndex;
newSegment.EndIndex = endIndex;
Segments.Add(newSegment);
GSplineAnchor startAnchor = Anchors[newSegment.StartIndex];
GSplineAnchor endAnchor = Anchors[newSegment.EndIndex];
newSegment.StartTangent = (endAnchor.Position - startAnchor.Position) / 3f;
newSegment.EndTangent = -newSegment.StartTangent;
return(newSegment);
}
public GSplineSegment AddSegment(int startIndex, int endIndex)
{
GSplineSegment s = Segments.Find(s0 =>
(s0.StartIndex == startIndex && s0.EndIndex == endIndex) ||
(s0.StartIndex == endIndex && s0.EndIndex == startIndex));
if (s != null)
{
return(s);
}
GSplineSegment newSegment = new GSplineSegment();
newSegment.StartIndex = startIndex;
newSegment.EndIndex = endIndex;
Segments.Add(newSegment);
GSplineAnchor startAnchor = Anchors[newSegment.StartIndex];
GSplineAnchor endAnchor = Anchors[newSegment.EndIndex];
Vector3 direction = (endAnchor.Position - startAnchor.Position).normalized;
float length = (endAnchor.Position - startAnchor.Position).magnitude / 3;
newSegment.StartTangent = startAnchor.Position + direction * length;
newSegment.EndTangent = endAnchor.Position - direction * length;
return(newSegment);
}
public void RemoveAnchor(int index)
{
GSplineAnchor a = Anchors[index];
List <int> segmentIndices = FindSegments(index);
for (int i = 0; i < segmentIndices.Count; ++i)
{
int sIndex = segmentIndices[i];
}
Segments.RemoveAll(s => s.StartIndex == index || s.EndIndex == index);
Segments.ForEach(s =>
{
if (s.StartIndex > index)
{
s.StartIndex -= 1;
}
if (s.EndIndex > index)
{
s.EndIndex -= 1;
}
});
Anchors.RemoveAt(index);
}
public GSplineAnchorInspectorDrawer(GSplineAnchor anchor)
{
instance = anchor;
}
public static GSplineAnchorInspectorDrawer Create(GSplineAnchor anchor)
{
return(new GSplineAnchorInspectorDrawer(anchor));
}
public void AddAnchor(GSplineAnchor a)
{
Anchors.Add(a);
}
public int[] SmoothTangents(params int[] anchorIndices)
{
int[] anchorRanks = new int[Anchors.Count];
Vector3[] directions = new Vector3[Anchors.Count];
float[] segmentLengths = new float[Segments.Count];
for (int i = 0; i < Segments.Count; ++i)
{
GSplineSegment s = Segments[i];
anchorRanks[s.StartIndex] += 1;
anchorRanks[s.EndIndex] += 1;
GSplineAnchor aStart = Anchors[s.StartIndex];
GSplineAnchor aEnd = Anchors[s.EndIndex];
Vector3 startToEnd = aEnd.Position - aStart.Position;
Vector3 d = Vector3.Normalize(startToEnd);
directions[s.StartIndex] += d;
directions[s.EndIndex] += d;
segmentLengths[i] = startToEnd.magnitude;
}
for (int i = 0; i < directions.Length; ++i)
{
if (anchorRanks[i] == 0)
{
continue;
}
directions[i] = Vector3.Normalize(directions[i] / anchorRanks[i]);
}
if (anchorIndices == null || anchorIndices.Length == 0)
{
anchorIndices = GUtilities.GetIndicesArray(Anchors.Count);
}
for (int i = 0; i < anchorIndices.Length; ++i)
{
int index = anchorIndices[i];
if (anchorRanks[index] > 0)
{
Quaternion rot = Quaternion.LookRotation(directions[index], Vector3.up);
Anchors[index].Rotation = rot;
}
}
List <int> segmentIndices = new List <int>();
for (int i = 0; i < Segments.Count; ++i)
{
GSplineSegment s = Segments[i];
for (int j = 0; j < anchorIndices.Length; ++j)
{
int anchorIndex = anchorIndices[j];
if (s.StartIndex == anchorIndex || s.EndIndex == anchorIndex)
{
segmentIndices.Add(i);
}
}
}
for (int i = 0; i < segmentIndices.Count; ++i)
{
int index = segmentIndices[i];
GSplineSegment s = Segments[index];
GSplineAnchor aStart = Anchors[s.StartIndex];
GSplineAnchor aEnd = Anchors[s.EndIndex];
float sLength = segmentLengths[index];
float tangentLength = sLength * 0.33f;
Vector3 dirStart = directions[s.StartIndex];
Vector3 dirEnd = directions[s.EndIndex];
s.StartTangent = aStart.Position + dirStart * tangentLength;
s.EndTangent = aEnd.Position - dirEnd * tangentLength;
}
return(segmentIndices.ToArray());
}
private void HandleSelectTransformRemoveSegment()
{
List <GSplineSegment> segments = splineCreator.Spline.Segments;
List <GSplineAnchor> anchors = splineCreator.Spline.Anchors;
for (int i = 0; i < segments.Count; ++i)
{
if (!splineCreator.Spline.IsSegmentValid(i))
{
continue;
}
if (i == selectedSegmentIndex && !autoTangent && !showTransformGizmos)
{
HandleSelectedSegmentModifications();
}
int i0 = segments[i].StartIndex;
int i1 = segments[i].EndIndex;
GSplineAnchor a0 = anchors[i0];
GSplineAnchor a1 = anchors[i1];
Vector3 startPosition = splineCreator.transform.TransformPoint(a0.Position);
Vector3 endPosition = splineCreator.transform.TransformPoint(a1.Position);
Vector3 startTangent = splineCreator.transform.TransformPoint(segments[i].StartTangent);
Vector3 endTangent = splineCreator.transform.TransformPoint(segments[i].EndTangent);
Color color = (i == selectedSegmentIndex) ?
GEditorSettings.Instance.splineTools.selectedElementColor :
GEditorSettings.Instance.splineTools.segmentColor;;
Color colorFade = new Color(color.r, color.g, color.b, color.a * 0.1f);
Vector3[] bezierPoints = Handles.MakeBezierPoints(startPosition, endPosition, startTangent, endTangent, splineCreator.Smoothness);
Handles.zTest = UnityEngine.Rendering.CompareFunction.LessEqual;
Handles.color = color;
Handles.DrawAAPolyLine(BEZIER_WIDTH, bezierPoints);
Handles.zTest = UnityEngine.Rendering.CompareFunction.Greater;
Handles.color = colorFade;
Handles.DrawAAPolyLine(BEZIER_WIDTH, bezierPoints);
Matrix4x4 localToWorld = splineCreator.transform.localToWorldMatrix;
Matrix4x4 splineToLocal = splineCreator.Spline.TRS(i, 0.5f);
Matrix4x4 splineToWorld = localToWorld * splineToLocal;
Vector3 arrow0 = splineToWorld.MultiplyPoint(Vector3.zero);
splineToLocal = splineCreator.Spline.TRS(i, 0.45f);
splineToWorld = localToWorld * splineToLocal;
Vector3 arrow1 = splineToWorld.MultiplyPoint(Vector3.left * 0.5f);
Vector3 arrow2 = splineToWorld.MultiplyPoint(Vector3.right * 0.5f);
Handles.zTest = UnityEngine.Rendering.CompareFunction.LessEqual;
Handles.color = color;
Handles.DrawAAPolyLine(BEZIER_WIDTH, arrow1, arrow0, arrow2);
Handles.zTest = UnityEngine.Rendering.CompareFunction.Greater;
Handles.color = colorFade;
Handles.DrawAAPolyLine(BEZIER_WIDTH, arrow1, arrow0, arrow2);
if (Event.current.type == EventType.MouseUp && Event.current.button == 0 && !showTransformGizmos && !Event.current.alt)
{
float d0 = DistanceMouseToSpline(Event.current.mousePosition, bezierPoints);
float d1 = DistanceMouseToPoint(Event.current.mousePosition, bezierPoints[0]);
float d2 = DistanceMouseToPoint(Event.current.mousePosition, bezierPoints[bezierPoints.Length - 1]);
if (d0 <= BEZIER_SELECT_DISTANCE &&
d1 > BEZIER_SELECT_DISTANCE &&
d2 > BEZIER_SELECT_DISTANCE)
{
selectedSegmentIndex = i;
if (Event.current.control)
{
splineCreator.Spline.RemoveSegment(selectedSegmentIndex);
selectedSegmentIndex = -1;
GUI.changed = true;
}
//don't Use() the event here
}
else
{
if (selectedSegmentIndex == i)
{
selectedSegmentIndex = -1;
}
}
}
}
Handles.zTest = UnityEngine.Rendering.CompareFunction.Always;
}
private void HandleSelectTransformRemoveAnchor()
{
List <GSplineAnchor> anchors = splineCreator.Spline.Anchors;
for (int i = 0; i < anchors.Count; ++i)
{
GSplineAnchor a = anchors[i];
Vector3 localPos = a.Position;
Vector3 worldPos = splineCreator.transform.TransformPoint(localPos);
float handleSize = HandleUtility.GetHandleSize(worldPos) * 0.2f;
if (i == selectedAnchorIndex && !showTransformGizmos)
{
Handles.color = GEditorSettings.Instance.splineTools.selectedElementColor;
Handles.SphereHandleCap(0, worldPos, Quaternion.identity, handleSize, EventType.Repaint);
bool isGlobalRotation = Tools.pivotRotation == PivotRotation.Global;
EditorGUI.BeginChangeCheck();
if (Tools.current == Tool.Move)
{
worldPos = Handles.PositionHandle(worldPos, isGlobalRotation ? Quaternion.identity : a.Rotation);
localPos = splineCreator.transform.InverseTransformPoint(worldPos);
a.Position = localPos;
}
else if (Tools.current == Tool.Rotate && !GEditorSettings.Instance.splineTools.autoTangent)
{
a.Rotation = Handles.RotationHandle(a.Rotation, worldPos);
}
else if (Tools.current == Tool.Scale)
{
a.Scale = Handles.ScaleHandle(a.Scale, worldPos, isGlobalRotation ? Quaternion.identity : a.Rotation, HandleUtility.GetHandleSize(worldPos));
}
anchors[i] = a;
if (EditorGUI.EndChangeCheck())
{
if (autoTangent)
{
splineCreator.Spline.SmoothTangents(selectedAnchorIndex);
GUI.changed = true;
}
}
}
else
{
Handles.color = GEditorSettings.Instance.splineTools.anchorColor;
if (Handles.Button(worldPos, Quaternion.identity, handleSize, handleSize * 0.5f, Handles.SphereHandleCap) && !showTransformGizmos)
{
if (!Event.current.alt)
{
if (Event.current.control)
{
selectedAnchorIndex = -1;
selectedSegmentIndex = -1;
splineCreator.Spline.RemoveAnchor(i);
GUI.changed = true;
}
else if (Event.current.shift)
{
if (selectedAnchorIndex != i &&
selectedAnchorIndex >= 0 &&
selectedAnchorIndex < anchors.Count)
{
splineCreator.Spline.AddSegment(selectedAnchorIndex, i);
if (autoTangent)
{
int[] segmentsIndices = splineCreator.Spline.SmoothTangents(selectedAnchorIndex, i);
}
else
{
}
selectedAnchorIndex = i;
selectedSegmentIndex = -1;
GUI.changed = true;
}
}
else
{
selectedAnchorIndex = i;
selectedSegmentIndex = -1;
GUI.changed = true;
}
Event.current.Use();
}
}
}
}
}
public void AdjustTangent(int segmentIndex)
{
GSplineSegment s = Spline.Segments[segmentIndex];
int startCount = 0;
Vector3 startAvgTangent = Vector3.zero;
int endCount = 0;
Vector3 endAvgTangent = Vector3.zero;
for (int i = 0; i < Spline.Segments.Count; ++i)
{
GSplineSegment s0 = Spline.Segments[i];
if (s0 == s)
{
continue;
}
if (s0.StartIndex == s.StartIndex)
{
startAvgTangent += s0.StartTangent;
startCount += 1;
}
if (s0.EndIndex == s.StartIndex)
{
startAvgTangent += s0.EndTangent;
startCount += 1;
}
if (s0.StartIndex == s.EndIndex)
{
endAvgTangent += s0.StartTangent;
endCount += 1;
}
if (s0.EndIndex == s.EndIndex)
{
endAvgTangent += s0.EndTangent;
endCount += 1;
}
}
if (startAvgTangent == Vector3.zero)
{
startCount = 0;
}
if (endAvgTangent == Vector3.zero)
{
endCount = 0;
}
if (startCount == 0 && endCount == 0)
{
GSplineAnchor startAnchor = Spline.Anchors[s.StartIndex];
GSplineAnchor endAnchor = Spline.Anchors[s.EndIndex];
s.StartTangent = (endAnchor.Position - startAnchor.Position) / 3f;
s.EndTangent = -s.StartTangent;
}
else if (startCount == 0 && endCount > 0)
{
s.EndTangent = -endAvgTangent / endCount;
s.StartTangent = s.EndTangent;
}
else if (startCount > 0 && endCount == 0)
{
s.StartTangent = -startAvgTangent / startCount;
s.EndTangent = s.StartTangent;
}
else
{
s.StartTangent = -startAvgTangent / startCount;
s.EndTangent = -endAvgTangent / endCount;
}
}
private void HandleAnchorModifications()
{
List <GSplineAnchor> anchors = instance.Spline.Anchors;
for (int i = 0; i < anchors.Count; ++i)
{
Handles.zTest = UnityEngine.Rendering.CompareFunction.Less;
Handles.color = i == selectedAnchorIndex ?
GGriffinSettings.Instance.SplineToolSettings.SelectedElementColor :
GGriffinSettings.Instance.SplineToolSettings.AnchorColor;
GSplineAnchor a = anchors[i];
if (a == null)
{
continue;
}
Vector3 groundPosition = new Vector3(a.Position.x, 0, a.Position.z);
Handles.DrawDottedLine(
groundPosition,
a.Position, 5);
if (GGuiEventUtilities.IsLeftMouseUp && GGuiEventUtilities.IsCtrl)
{
float d0 = GHandleUtility.DistanceMouseToLine(Event.current.mousePosition, groundPosition, a.Position);
float d1 = GHandleUtility.DistanceMouseToPoint(Event.current.mousePosition, groundPosition);
float d2 = GHandleUtility.DistanceMouseToPoint(Event.current.mousePosition, a.Position);
if (d0 <= BEZIER_SELECT_DISTANCE &&
d1 > BEZIER_SELECT_DISTANCE &&
d2 > BEZIER_SELECT_DISTANCE)
{
SnapAnchorToSurface(a);
GUI.changed = true;
}
}
float handleSize = HandleUtility.GetHandleSize(a.Position) * 0.2f;
if (Handles.Button(a.Position, Camera.current.transform.rotation, handleSize, handleSize * 0.5f, Handles.SphereHandleCap))
{
if (GGuiEventUtilities.IsShift)
{
if (selectedAnchorIndex >= 0 && selectedAnchorIndex < anchors.Count)
{
instance.Spline.AddSegment(selectedAnchorIndex, i);
GUI.changed = true;
}
selectedAnchorIndex = i;
selectedSegmentIndex = -1;
Event.current.Use();
}
else if (GGuiEventUtilities.IsCtrl)
{
instance.Spline.RemoveAnchor(i);
selectedAnchorIndex = -1;
selectedSegmentIndex = -1;
GUI.changed = true;
Event.current.Use();
}
else
{
selectedAnchorIndex = i;
selectedSegmentIndex = -1;
Event.current.Use();
}
}
if (i == selectedAnchorIndex)
{
Handles.zTest = UnityEngine.Rendering.CompareFunction.Always;
if (Tools.current == Tool.Move)
{
a.Position = Handles.PositionHandle(a.Position, a.Rotation);
}
else if (Tools.current == Tool.Rotate)
{
a.Rotation = Handles.RotationHandle(a.Rotation, a.Position);
}
else if (Tools.current == Tool.Scale)
{
a.Scale = Handles.ScaleHandle(a.Scale, a.Position, a.Rotation, HandleUtility.GetHandleSize(a.Position));
}
instance.transform.position = instance.Spline.Anchors[i].Position;
}
}
Handles.zTest = UnityEngine.Rendering.CompareFunction.Always;
}