void OnEnable()
{
creator = (SnakePathCreator)target;
lastBezierSegmentInfo = new Types.BezierSegmentInfo();
if (creator.snakePath != null)
{
creator.snakePath.OffsetPosition = creator.transform.position;
EditorUtility.SetDirty(creator.snakePath);
}
}
void Input(Event guiEvent)
{
Vector3 mousePos = HandleUtility.GUIPointToWorldRay(guiEvent.mousePosition).origin;
Vector3 direction = HandleUtility.GUIPointToWorldRay(guiEvent.mousePosition).direction;
//Only allow adding segment on orthographic mode and 100% along one camera axis
if (guiEvent.type == EventType.MouseDown && guiEvent.button == 0 && guiEvent.shift && IsAddSegmentAvailable(direction))
{
Vector3 lastPoint = ConvertToWorldPos(creator.snakePath[creator.snakePath.PointCount - 1]);
//float magnitude = Vector3.Distance(lastPoint, mousePos);
//Vector3 finalPoint = mousePos + (direction * magnitude);
Vector3 finalPoint = RestrictPositionBaseOnCameraDir(direction, mousePos, lastPoint);
Undo.RecordObject(creator.snakePath, "Add segment");
creator.snakePath.AddSegment(ConvertToLocalPos(finalPoint));
AutoSetControlPointIfEnable(creator.snakePath.PointCount - 1);
}
//Delete Anchor
if (guiEvent.type == EventType.MouseDown && guiEvent.button == 1)
{
int removeIndex = FindTheMostClosetIndex(mousePos, direction);
if (removeIndex >= 0)
{
Undo.RecordObject(creator.snakePath, "Delete segment");
creator.snakePath.Delete(removeIndex);
AutoSetControlPointIfEnable(removeIndex);
}
}
if (guiEvent.type == EventType.MouseMove && guiEvent.control)
{
lastBezierSegmentInfo = FindClosestSegment(mousePos, direction);
if (lastBezierSegmentInfo.SegmentIndex >= 0)
{
//Debug.Log($"SegmentIndex {lastBezierSegmentInfo.SegmentIndex}, t {lastBezierSegmentInfo.t}, dist {lastBezierSegmentInfo.dist}");
SceneView.RepaintAll();
}
}
if (guiEvent.type == EventType.MouseDown && guiEvent.button == 0 && guiEvent.control)
{
if (lastBezierSegmentInfo.SegmentIndex >= 0)
{
Undo.RecordObject(creator.snakePath, "Insert segment");
creator.snakePath.SplitSegment(ConvertToLocalPos(lastBezierSegmentInfo.Position), lastBezierSegmentInfo.SegmentIndex);
int anchorIndex = lastBezierSegmentInfo.SegmentIndex * 3;
creator.SmoothCtrlPoints(anchorIndex - 3, anchorIndex + 3);
SceneView.RepaintAll();
}
}
if (!guiEvent.control)
{
lastBezierSegmentInfo.SegmentIndex = -1;
}
}
