private void ShowControlPoints(CableSpline cable)
{
foreach (var point in cable.ControlPoints)
{
ShowControlPoint(point, cable);
}
}
private void AddContolPoint(Event currentEvent, CableSpline cable, InScenePosition inScenePosition)
{
var lastPoint = cable.ControlPoints.Last();
var lastPointPosition = cable.transform.position + lastPoint.Position;
if (inScenePosition.IsInCable)
{
if (currentEvent.type == EventType.MouseDown)
{
Undo.RecordObject(cable, "Inserted control point");
cable.InsertControlPoint(inScenePosition.ControlPoints, inScenePosition.Position);
currentEvent.Use();
}
}
else
{
Handles.DrawLine(lastPointPosition, inScenePosition.Position);
if (currentEvent.type == EventType.MouseDown)
{
Undo.RecordObject(cable, "Added additional control point");
cable.AddControlPoint(inScenePosition.Position);
currentEvent.Use();
}
}
}
private void RemoveControlPoint(Event currentEvent, CableSpline cable, InScenePosition inScenePosition)
{
if (currentEvent.type == EventType.MouseDown)
{
Undo.RecordObject(cable, "Removed control point");
cable.RemoveControlPoint(inScenePosition.ControlPoints.First);
currentEvent.Use();
}
}
private void ShowControlPoint(CableSpline.SplineControlPoint controlPoint, CableSpline cable)
{
var position = cable.transform.position + controlPoint.Position;
float size = HandleUtility.GetHandleSize(position) * 1f;
EditorGUI.BeginChangeCheck();
controlPoint.Position = Handles.DoPositionHandle(position, controlPoint.Direction) - cable.transform.position;
controlPoint.Direction = Handles.DoRotationHandle(controlPoint.Direction, position);
if (EditorGUI.EndChangeCheck())
{
Undo.RecordObject(cable, "Edited Cable control point");
cable.UpdateMesh();
EditorUtility.SetDirty(cable);
}
}
private void DrawCurvedLine(CableSpline cable)
{
var leftRotation = Quaternion.LookRotation(Vector3.left);
var rightotation = Quaternion.LookRotation(Vector3.right);
foreach (var pair in cable.GetControlPointPairs(cable.ControlPoints))
{
var distance = (pair.Second.Position - pair.First.Position).magnitude / 3;
var firstPoint = pair.First.Position + cable.transform.position;
var lastPoint = pair.Second.Position + cable.transform.position;
var extraPosition01 = pair.First.Position + pair.First.Direction * Vector3.forward * distance + cable.transform.position;
var extraPosition02 = pair.Second.Position + pair.Second.Direction * Vector3.back * distance + cable.transform.position;
Handles.DrawBezier(firstPoint, lastPoint, extraPosition01, extraPosition02, Color.green, null, 2);
}
}
private InScenePosition GetInScenePoint(Vector2 position, CableSpline cable)
{
if (Physics.Raycast(HandleUtility.GUIPointToWorldRay(position), out RaycastHit raycastHit))
{
if (raycastHit.collider.gameObject == cable.gameObject)
{
return(new InScenePosition {
Position = raycastHit.point, IsInWorld = true, IsInCable = true, ControlPoints = GetSelectedControlPoint(raycastHit, cable)
});
}
else
{
return(new InScenePosition {
Position = raycastHit.point, IsInWorld = true, IsInCable = false
});
}
}
else
{
return(new InScenePosition {
Position = Vector3.zero, IsInWorld = false
});
}
}
private void HandleEvent(Event currentEvent, CableSpline cable)
{
var inScenePosition = GetInScenePoint(Event.current.mousePosition, cable);
if (currentEvent.control)
{
AddContolPoint(currentEvent, cable, inScenePosition);
}
else if (currentEvent.shift)
{
RemoveControlPoint(currentEvent, cable, inScenePosition);
}
else
{
Handles.Label(inScenePosition.Position + Vector3.down * 2, "Hold control to place point\nHold shift to remove a point\nPress space to release", EditorTextStyle);
}
// Space releases the editing of this cable
if (currentEvent.type == EventType.KeyDown && currentEvent.keyCode == KeyCode.Space)
{
cable.IsEditable = false;
currentEvent.Use();
}
}
private CableSpline.ControlPointPair GetSelectedControlPoint(RaycastHit raycastHit, CableSpline connection)
{
// Each segment consist of a |RoundSegments| quad, for a total of RoundSegments * 2 tris or RoundSegments * 6 vertices.
var segmentIndex = raycastHit.triangleIndex / (2 * connection.RoundSegments);
var placedSegmentIndex = Mathf.Clamp((segmentIndex + 1) / (connection.SmoothnessLevel + 1), 0, int.MaxValue);
var previousSegmentIndex = Mathf.Clamp(segmentIndex / (connection.SmoothnessLevel + 1), 0, int.MaxValue);
if (previousSegmentIndex == placedSegmentIndex)
{
previousSegmentIndex = placedSegmentIndex + 1;
}
return(new CableSpline.ControlPointPair(connection.ControlPoints[placedSegmentIndex], connection.ControlPoints[previousSegmentIndex]));
}
