public override void OnInspectorGUI()
 {
     EditorGUI.BeginChangeCheck();
     base.OnInspectorGUI();
     myTarget = (LandScapeGenerate)target;
     if (GUILayout.Button("Generate Landscape"))
     {
         myTarget.GenerateTerrain();
     }
     if (EditorGUI.EndChangeCheck())
     {
         GenerateTerrain();
     }
 }
 private void OnEnable()
 {
     myTarget = (LandScapeGenerate)target;
     Undo.undoRedoPerformed += GenerateTerrain;
 }