public float3 GetControlPoint(ISpline2D spline, int index, SplinePoint pointType)
{
ISpline2DEditor spline2D = spline as ISpline2DEditor;
Assert.NotNull(spline2D);
return(new float3(spline2D.GetControlPoint2DLocal(index), 0f));
}
/// <summary>
/// Find the closest point to the spline
/// </summary>
/// <param name="mouse">mouse position</param>
/// <param name="spline">spline to check</param>
/// <param name="index">spline index of the closest point</param>
/// <returns>closest point on the spline to the mouse</returns>
protected override float2 ClosestPointSelection(float2 mouse, ISpline2DEditor spline, out int index)
{
index = 0;
if (spline.ControlPointCount == 1)
{
return(spline.GetControlPoint2DLocal(0));
}
else if (spline.ControlPointCount == 0)
{
return(mouse);
}
float2 bestPoint = float2.zero;
float bestDistance = float.MaxValue;
for (int i = 1; i < spline.SegmentPointCount; i++)
{
for (int s = 0; s <= 64; s++)
{
float progress = s / 64f;
float2 p = spline.Get2DPointWorld(progress, i - 1);
float dist = math.distance(mouse, p);
if (bestDistance > dist)
{
bestPoint = p;
bestDistance = dist;
if (progress > 0.5)
{
index = (i + 1) % spline.ControlPointCount;
}
else
{
index = i;
}
}
}
}
if (!(spline is ILoopingSpline) || !((ILoopingSpline)spline).Looped)
{
if (math.distance(bestPoint, spline.GetControlPoint2DWorld(0)) <= 0.00001f)
{
index = 0;
}
else if (math.distance(bestPoint, spline.GetControlPoint2DWorld(spline.ControlPointCount - 1)) <= 0.00001f)
{
index = spline.ControlPointCount - 1;
}
}
return(bestPoint);
}
/// <summary>
/// Shared Inspector logic
/// </summary>
/// <param name="spline">spline to show inspector for</param>
protected void OnInspectorGUI(ISpline2DEditor spline)
{
if (GUILayout.Button("Edit Points"))
{
m_editing = !m_editing;
m_editControlPoint = null;
m_editNewPointIndex = -1;
m_lastTransPosition = m_sourceTrans?.position ?? Vector3.zero;
SceneView.RepaintAll();
}
if (!m_editing)
{
GUILayout.Space(5);
EditorGUILayout.HelpBox(
$"Points: {spline.ControlPointCount}\n" +
$"Length: {spline.Length():N3}", MessageType.None);
if (spline is ILoopingSpline loop)
{
EditorGUI.BeginChangeCheck();
loop.Looped = EditorGUILayout.Toggle("Loop", loop.Looped);
if (EditorGUI.EndChangeCheck())
{
SceneView.RepaintAll();
}
}
if (spline is IArkableSpline arked)
{
EditorGUI.BeginChangeCheck();
arked.ArkParameterization = EditorGUILayout.Toggle("Ark Parametrization", arked.ArkParameterization);
if (EditorGUI.EndChangeCheck() && spline is Object objSpline)
{
EditorUtility.SetDirty(objSpline);
}
if (arked.ArkParameterization)
{
EditorGUI.BeginChangeCheck();
arked.ArkLength = EditorGUILayout.FloatField("Ark Length", arked.ArkLength);
if (EditorGUI.EndChangeCheck() && spline is Object objSpline2)
{
EditorUtility.SetDirty(objSpline2);
}
}
}
GUILayout.Space(5);
// Draw spline points - Draw a point every set interval to illustrate where bezier points will be
EditorGUI.BeginChangeCheck();
m_debugPointQty = (int)EditorGUILayout.Slider("Draw points", m_debugPointQty, 0, 200);
if (EditorGUI.EndChangeCheck())
{
SceneView.RepaintAll();
}
}
else
{
if (m_sourceTrans != null)
{
bool value = EditorGUILayout.Toggle("Move Points with Transform", m_editMoveWithTrans);
if (value != m_editMoveWithTrans)
{
m_editMoveWithTrans = value;
m_lastTransPosition = m_sourceTrans.position;
}
MoveWithTransform(spline);
}
if (m_editNewPointIndex >= 0)
{
EditorGUILayout.LabelField($"New At Index: {m_editNewPointIndex}");
}
if (m_editControlPoint == null)
{
EditorGUILayout.HelpBox($"No Control Point Selected!", MessageType.None);
}
else
{
m_editNewPointIndex = -1;
EditorGUILayout.LabelField($"Control Point: {m_editControlPoint}");
// show the current control point location
EditorGUI.BeginChangeCheck();
float2 currentPoint = spline.GetControlPoint2DLocal(m_editControlPoint.Value);
currentPoint = EditorGUILayout.Vector2Field("Point", currentPoint);
if (EditorGUI.EndChangeCheck())
{
spline.UpdateControlPointLocal(m_editControlPoint.Value, currentPoint, SplinePoint.Point);
SceneView.RepaintAll();
}
SplineEditMode existingValue = spline.GetEditMode(m_editControlPoint.Value);
SplineEditMode editMode = (SplineEditMode)EditorGUILayout.EnumPopup("Edit Mode", existingValue);
if (editMode != existingValue && spline is Object objSpline)
{
Undo.RecordObject(objSpline, $"Change EditMode of Point {m_editControlPoint}");
EditorUtility.SetDirty(objSpline);
spline.ChangeEditMode(m_editControlPoint.Value, editMode);
SceneView.RepaintAll();
}
GUILayout.Space(10);
if (GUILayout.Button("Remove Point") ||
Event.current.isKey && Event.current.type == EventType.KeyDown &&
Event.current.keyCode == KeyCode.Delete)
{
spline.RemoveControlPoint(m_editControlPoint.Value);
m_editControlPoint = null;
SceneView.RepaintAll();
if (Event.current.keyCode == KeyCode.Delete)
{
// Sadly this doesn't actually work :( dammit Unity
GUIUtility.hotControl = 0;
Event.current.Use();
}
}
}
}
}