Created
April 10, 2019 11:09
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Playing with unity editor
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using UnityEditor; | |
using UnityEngine; | |
[ExecuteInEditMode] | |
public class TestEditor : MonoBehaviour | |
{ | |
public UnityEngine.Object prefab; | |
public GameObject parent; | |
public Brush brush; | |
private void OnEnable() | |
{ | |
SceneView.duringSceneGui += OnSceneGUI; | |
// Selection.selectionChanged += OnSelectionChanged; | |
} | |
private bool _selectionChanged; | |
private void OnSceneGUI(SceneView view) | |
{ | |
var e = Event.current; | |
// Debug.Log(e); | |
var mousePosition = e.mousePosition; | |
if ((e.type == EventType.MouseDrag || e.type == EventType.MouseDown) && e.button == 1) | |
{ | |
var position = HandleUtility.GUIPointToWorldRay (mousePosition).origin; | |
if (e.alt) | |
{ | |
Debug.Log("ERASE!"); | |
// delete instance | |
var go = HandleUtility.PickGameObject(mousePosition, true); | |
if (go != null && go != this.gameObject) | |
{ | |
if (Selection.Contains(go)) | |
{ | |
Selection.activeObject = null; | |
} | |
GameObject.DestroyImmediate(go); | |
} | |
} | |
else | |
{ | |
if (brush.CanPaint(position)) | |
{ | |
var instance = PrefabUtility.InstantiatePrefab(prefab, parent.transform) as GameObject; | |
instance.transform.position = position; | |
LockObject(instance, true); | |
// instance.hideFlags = HideFlags.NotEditable | HideFlags.HideInHierarchy; | |
// instance.transform.GetChild(0).hideFlags = HideFlags.NotEditable | HideFlags.HideInHierarchy; | |
brush.Paint(position); | |
} | |
} | |
e.Use(); | |
} | |
void LockObject(GameObject targetObject, bool recursive) | |
{ | |
targetObject.hideFlags = targetObject.hideFlags | HideFlags.NotEditable; | |
if (recursive) | |
{ | |
foreach (Transform child in targetObject.transform) | |
LockObject(child.gameObject, true); | |
} | |
} | |
void UnlockObject(GameObject targetObject, bool recursive) | |
{ | |
targetObject.hideFlags = targetObject.hideFlags & ~HideFlags.NotEditable; | |
if (recursive) | |
{ | |
foreach (Transform child in targetObject.transform) | |
UnlockObject(child.gameObject, true); | |
} | |
} | |
} | |
private void OnDisable() | |
{ | |
SceneView.duringSceneGui -= OnSceneGUI; | |
// Selection.selectionChanged -= OnSelectionChanged; | |
} | |
} | |
//// | |
using System.Collections; | |
using System.Collections.Generic; | |
using UnityEditor; | |
using UnityEngine; | |
[InitializeOnLoad] | |
public class TestCustomEditor | |
{ | |
private static bool _selectionChanged; | |
static TestCustomEditor() | |
{ | |
EditorApplication.update += TestUpdate; | |
Selection.selectionChanged += OnSelectionChanged; | |
} | |
private static void OnSelectionChanged() | |
{ | |
// return; | |
_selectionChanged = true; | |
} | |
private static bool ObjectIsLocked(GameObject testObject) | |
{ | |
if (testObject == null) | |
return false; | |
return ((int) testObject.hideFlags & (int)HideFlags.NotEditable) != 0; | |
} | |
private static void TestUpdate() | |
{ | |
// Debug.Log("Update!!"); | |
if (_selectionChanged) | |
{ | |
_selectionChanged = false; | |
var selectedObjects = Selection.objects; | |
var newSelectedObjects = new List<Object>(); | |
for (var i = 0; i < selectedObjects.Length; i++) | |
{ | |
if (ObjectIsLocked(selectedObjects[i] as GameObject)) | |
{ | |
Debug.Log("Removed from selection!"); | |
continue; | |
} | |
Debug.Log("Added to selection"); | |
newSelectedObjects.Add(selectedObjects[i]); | |
} | |
Selection.objects = newSelectedObjects.ToArray(); | |
} | |
} | |
} | |
/// | |
using UnityEditor; | |
using UnityEngine; | |
[CreateAssetMenu(menuName = "Gemserk/Brush")] | |
public class Brush : ScriptableObject | |
{ | |
// paint per second? | |
public float delay; | |
public float distance; | |
private double _lastTime; | |
private Vector2 _lastPosition; | |
public bool CanPaint(Vector2 position) | |
{ | |
if (EditorApplication.timeSinceStartup - _lastTime > delay) | |
return true; | |
return Vector2.SqrMagnitude(position - _lastPosition) > distance * distance; | |
} | |
public void Paint(Vector2 position) | |
{ | |
_lastPosition = position; | |
_lastTime = EditorApplication.timeSinceStartup; | |
} | |
} |
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