public static void DrawSelectedKnot(
Bezier3DSplineData splineData,
Action <IReadOnly3DSplineData> onUpdateSpline,
UnityEditor.Editor editorWindow,
Transform transform = null)
{
var knot = splineData.GetKnot(CurveEditorState.SelectedKnotIndex);
Handles.color = Color.green;
var knotWorldPos = transform == null
? knot.position
: transform.TransformPoint(knot.position);
if (knot.rotation.HasValue)
{
Handles.color = Handles.yAxisColor;
var rot = knot.rotation.Value;
Handles.ArrowHandleCap(
0,
knotWorldPos,
rot * Quaternion.AngleAxis(90, Vector3.left),
0.15f,
EventType.Repaint);
}
if (Tools.current == Tool.Move)
{
//Position handle
using (var changeCheck = new EditorGUI.ChangeCheckScope())
{
knotWorldPos = Handles.PositionHandle(knotWorldPos, Tools.handleRotation);
if (changeCheck.changed)
{
Undo.RecordObject(splineData, "Edit Bezier Point");
knot.position = transform == null ? knotWorldPos : transform.InverseTransformPoint(knotWorldPos);
splineData.SetKnot(CurveEditorState.SelectedKnotIndex, knot);
onUpdateSpline?.Invoke(splineData);
editorWindow.Repaint();
}
}
Handles.color = Color.white;
//In Handle
if (knot.handleIn != Vector3.zero)
{
using (var changeCheck = new EditorGUI.ChangeCheckScope())
{
var inHandleWorldPos = transform == null
? knot.position + knot.handleIn
: transform.TransformPoint(knot.position + knot.handleIn);
inHandleWorldPos = Handles.PositionHandle(inHandleWorldPos, Tools.handleRotation);
if (changeCheck.changed)
{
Undo.RecordObject(splineData, "Edit Bezier Handle");
knot.handleIn = transform == null
? inHandleWorldPos - knot.position
: transform.InverseTransformPoint(inHandleWorldPos) - knot.position;
knot.auto = 0;
if (CurvePreferences.ShouldMirrorHandleMovement)
{
knot.handleOut = -knot.handleIn;
}
splineData.SetKnot(CurveEditorState.SelectedKnotIndex, knot);
onUpdateSpline?.Invoke(splineData);
editorWindow.Repaint();
}
Handles.DrawLine(knotWorldPos, inHandleWorldPos);
}
}
//outHandle
if (knot.handleOut != Vector3.zero)
{
using (var changeCheck = new EditorGUI.ChangeCheckScope())
{
var outHandleWorldPos = transform == null
? knot.position + knot.handleOut
: transform.TransformPoint(knot.position + knot.handleOut);
outHandleWorldPos = Handles.PositionHandle(outHandleWorldPos, Tools.handleRotation);
if (changeCheck.changed)
{
Undo.RecordObject(splineData, "Edit Bezier Handle");
knot.handleOut = transform == null
? outHandleWorldPos - knot.position
: transform.InverseTransformPoint(outHandleWorldPos) - knot.position;
knot.auto = 0;
if (CurvePreferences.ShouldMirrorHandleMovement)
{
knot.handleIn = -knot.handleOut;
}
splineData.SetKnot(CurveEditorState.SelectedKnotIndex, knot);
onUpdateSpline?.Invoke(splineData);
editorWindow.Repaint();
}
Handles.DrawLine(knotWorldPos, outHandleWorldPos);
}
}
}
else if (Tools.current == Tool.Rotate)
{
//Rotation handle
using (var changeCheck = new EditorGUI.ChangeCheckScope())
{
var rot = (knot.rotation.HasValue ? knot.rotation.Value : Quaternion.identity).normalized;
rot = Handles.RotationHandle(rot, knotWorldPos);
if (changeCheck.changed)
{
Undo.RecordObject(splineData, "Edit Bezier Point");
knot.rotation = rot;
splineData.SetKnot(CurveEditorState.SelectedKnotIndex, knot);
onUpdateSpline?.Invoke(splineData);
editorWindow.Repaint();
}
}
}
}
public override void OnInspectorGUI()
{
ValidateSelected();
// Spline Properties
EditorGUI.indentLevel = 0;
GUILayout.BeginVertical(GUI.skin.box);
EditorGUILayout.LabelField("Spline Settings", EditorStyles.boldLabel);
EditorGUILayout.Space(5);
DrawInterpolationSteps();
DrawClosedToggle();
// Spline Actions
GUILayout.BeginVertical(GUI.skin.box);
EditorGUILayout.LabelField("Actions", EditorStyles.boldLabel);
EditorGUILayout.Space(5);
DrawSplineFlipAction();
DrawCopySplineDataToClipboard();
DrawPasteSplineDataToClipboard();
DrawResetSplineData();
GUILayout.EndVertical();
GUILayout.EndVertical();
// Selected Point Properties
EditorGUILayout.Space();
if (CurveEditorState.HasKnotSelected)
{
// Header information for selected knot.
GUILayout.BeginVertical(GUI.skin.box);
EditorGUILayout.LabelField(
$"Selected Knot (index = {CurveEditorState.SelectedKnotIndex})",
EditorStyles.boldLabel);
EditorGUILayout.Space(2);
var knot = _spline.GetKnot(CurveEditorState.SelectedKnotIndex);
// Draw Position
DrawKnotPosition(knot);
EditorGUILayout.Space(2);
// Draw Orientation
DrawKnotOrientationToggle(knot);
DrawKnotOrientationValue(knot);
EditorGUILayout.Space(2);
// Draw Auto-Handle
DrawKnotAutoHandleToggle(knot);
if (knot.IsUsingAutoHandles)
{
DrawKnotAutoHandleValue(knot);
}
else
{
DrawKnotHandleValues(knot);
}
GUILayout.EndVertical();
}
}
public static void DrawSelectedSplitters(
Bezier3DSplineData splineData,
Action <IReadOnly3DSplineData> onUpdateSpline,
Transform transform = null)
{
Handles.color = Color.white;
//Start add
if (!splineData.IsClosed && CurveEditorState.SelectedKnotIndex == 0)
{
var curve = splineData.GetCurve(0);
var a = transform == null
? curve.StartPoint
: transform.TransformPoint(curve.StartPoint);
var b = transform == null
? curve.FirstHandle.normalized * 2f
: transform.TransformDirection(curve.FirstHandle).normalized * 2f;
var handleScale = HandleUtility.GetHandleSize(a);
b *= handleScale;
Handles.DrawDottedLine(a, a - b, 3f);
if (Handles.Button(
a - b,
Camera.current.transform.rotation,
handleScale * SceneGUIConstants.HandleSize * 0.4f,
handleScale * SceneGUIConstants.HandleSize * 0.4f,
Handles.DotHandleCap))
{
Undo.RecordObject(splineData, "Add Bezier Point");
var knot = splineData.GetKnot(CurveEditorState.SelectedKnotIndex);
splineData.InsertKnot(
0,
new Knot(
curve.StartPoint - curve.FirstHandle.normalized * handleScale * 2,
Vector3.zero,
curve.FirstHandle.normalized * 0.5f,
knot.auto,
knot.rotation));
onUpdateSpline?.Invoke(splineData);
}
}
//End add
if (!splineData.IsClosed && CurveEditorState.SelectedKnotIndex == splineData.CurveCount)
{
var curve = splineData.GetCurve(splineData.CurveCount - 1);
var c = transform == null
? curve.SecondHandle.normalized * 2f
: transform.TransformDirection(curve.SecondHandle).normalized * 2f;
var d = transform == null
? curve.EndPoint
: transform.TransformPoint(curve.EndPoint);
var handleScale = HandleUtility.GetHandleSize(d);
c *= handleScale;
Handles.DrawDottedLine(d, d - c, 3f);
if (Handles.Button(
d - c,
Camera.current.transform.rotation,
handleScale * SceneGUIConstants.HandleSize * 0.4f,
handleScale * SceneGUIConstants.HandleSize * 0.4f,
Handles.DotHandleCap))
{
Undo.RecordObject(splineData, "Add Bezier Point");
var knot = splineData.GetKnot(CurveEditorState.SelectedKnotIndex);
splineData.AddKnot(
new Knot(
curve.EndPoint - curve.SecondHandle.normalized * handleScale * 2,
curve.SecondHandle.normalized * 0.5f,
Vector3.zero,
knot.auto,
knot.rotation));
CurveEditorState.SelectKnot(splineData.CurveCount, false);
onUpdateSpline?.Invoke(splineData);
}
}
// Prev split
if (splineData.IsClosed || CurveEditorState.SelectedKnotIndex != 0)
{
var curve = splineData.GetCurve(CurveEditorState.SelectedKnotIndex == 0 ? splineData.CurveCount - 1 : CurveEditorState.SelectedKnotIndex - 1);
var centerLocal = curve.GetPoint(curve.ConvertDistanceToTime(curve.Length * 0.5f));
var center = transform == null ? centerLocal : transform.TransformPoint(centerLocal);
var a = curve.StartPoint + curve.FirstHandle;
var b = curve.SecondHandle + curve.EndPoint;
var ab = (b - a) * 0.3f;
var handleScale = HandleUtility.GetHandleSize(center);
if (Handles.Button(
center,
Camera.current.transform.rotation,
handleScale * SceneGUIConstants.HandleSize * 0.4f,
handleScale * SceneGUIConstants.HandleSize * 0.4f,
Handles.DotHandleCap))
{
Undo.RecordObject(splineData, "Add Bezier Point");
var knot = splineData.GetKnot(CurveEditorState.SelectedKnotIndex);
splineData.InsertKnot(
CurveEditorState.SelectedKnotIndex == 0 ? splineData.CurveCount : CurveEditorState.SelectedKnotIndex,
new Knot(
centerLocal,
-ab,
ab,
knot.auto,
knot.rotation));
if (CurveEditorState.SelectedKnotIndex == 0)
{
CurveEditorState.SelectKnot(splineData.CurveCount - 1, false);
}
onUpdateSpline?.Invoke(splineData);
}
}
// Next split
if (CurveEditorState.SelectedKnotIndex != splineData.CurveCount)
{
var curve = splineData.GetCurve(CurveEditorState.SelectedKnotIndex);
var centerLocal = curve.GetPoint(curve.ConvertDistanceToTime(curve.Length * 0.5f));
var center = transform == null ? centerLocal : transform.TransformPoint(centerLocal);
var a = curve.StartPoint + curve.FirstHandle;
var b = curve.SecondHandle + curve.EndPoint;
var ab = (b - a) * 0.3f;
var handleScale = HandleUtility.GetHandleSize(center);
if (Handles.Button(
center,
Camera.current.transform.rotation,
handleScale * SceneGUIConstants.HandleSize * 0.4f,
handleScale * SceneGUIConstants.HandleSize * 0.4f,
Handles.DotHandleCap))
{
Undo.RecordObject(splineData, "Add Bezier Point");
splineData.InsertKnot(CurveEditorState.SelectedKnotIndex + 1, new Knot(centerLocal, -ab, ab));
CurveEditorState.SelectKnot(CurveEditorState.SelectedKnotIndex + 1, false);
onUpdateSpline?.Invoke(splineData);
}
}
}