public override void OnInspectorGUI()
{
LinePath linePath = (LinePath)target;
if (linePath.Points.Count > 0)
{
int remove = -1;
for (int i = 0; i < linePath.Points.Count; i++)
{
EditorGUILayout.BeginHorizontal();
Vector2 localPositionBefore = linePath.Points[i];
Vector2 worldPosition = localPositionBefore + new Vector2(linePath.transform.position.x, linePath.transform.position.y);
worldPosition = EditorGUILayout.Vector2Field("Point " + (i + 1), worldPosition);
Vector2 localPositionAfter = worldPosition - new Vector2(linePath.transform.position.x, linePath.transform.position.y);
if (localPositionBefore != localPositionAfter)
{
Undo.RecordObject(linePath, "Move Point");
linePath.Points[i] = localPositionAfter;
}
if (GUILayout.Button("Delete"))
{
remove = i;
}
EditorGUILayout.EndHorizontal();
}
if (remove != -1)
{
Undo.RecordObject(linePath, "Delete Point from Path");
linePath.Points.RemoveAt(remove);
}
bool tempAllowOffset = EditorGUILayout.Toggle("Allow Offset", linePath.AllowOffset);
if (linePath.AllowOffset != tempAllowOffset)
{
Undo.RecordObject(linePath, "Change AllowOffset");
linePath.AllowOffset = tempAllowOffset;
}
}
else
{
GUILayout.Label("Shift-Click to add points");
}
SceneView.RepaintAll();
}
void OnSceneGUI()
{
LinePath linePath = (LinePath)target;
Event e = Event.current;
if (e.type == EventType.MouseDown && e.shift)
{
Undo.RecordObject(linePath, "Add Point to Path");
Ray ray = HandleUtility.GUIPointToWorldRay(e.mousePosition);
linePath.Points.Add(new Vector2(ray.origin.x - linePath.transform.position.x, ray.origin.y - linePath.transform.position.y));
linePath.Points.Sort((a, b) => {
return(a.x.CompareTo(b.x));
});
}
Vector3[] pointsArray = new Vector3[linePath.Points.Count];
for (int i = 0; i < linePath.Points.Count; i++)
{
pointsArray[i] = new Vector3(linePath.transform.position.x + linePath.Points[i].x,
linePath.transform.position.y + linePath.Points[i].y);
}
Handles.color = Color.red;
Handles.DrawPolyLine(pointsArray);
float handleSize = 1.0f;
Camera camera = Camera.current;
if (camera != null)
{
handleSize = Mathf.Abs(camera.transform.position.z) / 200.0f;
}
Handles.color = Color.white;
for (int i = 0; i < linePath.Points.Count; i++)
{
Vector3 before = new Vector3(linePath.Points[i].x, linePath.Points[i].y);
Vector3 after = Handles.Slider2D(i + 1, before, linePath.transform.position, Vector3.up, Vector3.up, Vector3.left, handleSize, Handles.DotCap, Vector2.one * 0.1f);
if (before != after)
{
Undo.RecordObject(linePath, "Move Point");
linePath.Points[i] = new Vector3(after.x, after.y, 0);
}
}
}