DeletArrayElementAtIndex crashes Unity when operating a bool array

Questions & Answers
1

Hi,

I’ve been working on a custom inspector. Using Add or Remove button to change the size of arrays. When I do this to a Transform array it works fine, but it always crash when used on a bool array. When I restart unity I can see from the inspector that the bool array is turned empty.

Here’s the inspector part of my code:

[CustomEditor(typeof(ClothChain))]
[CanEditMultipleObjects]
public class ClothChainEditor : Editor {
	SerializedProperty chainProp;
	SerializedProperty skipProp;
	
	void OnEnable () {
		chainProp = serializedObject.FindProperty("chain");
		skipProp = serializedObject.FindProperty("isSkipped");
	}
	
	public override void OnInspectorGUI () {
		int i;
		int removeId = -1;
		for (i=0; i<chainProp.arraySize; i++) {
			EditorGUILayout.BeginHorizontal();
			if ( GUILayout.Button("-", GUILayout.Width(24)) ) {
				removeId = i;
			}
			if (i<chainProp.arraySize) {
				EditorGUILayout.LabelField("Skip", GUILayout.Width(36));
				if ( i<skipProp.arraySize ) {
					skipProp.GetArrayElementAtIndex(i).boolValue = EditorGUILayout.Toggle (skipProp.GetArrayElementAtIndex(i).boolValue, GUILayout.Width(32));
				}
				chainProp.GetArrayElementAtIndex(i).objectReferenceValue = EditorGUILayout.ObjectField(chainProp.GetArrayElementAtIndex(i).objectReferenceValue, typeof(Transform), true);
			}
			EditorGUILayout.EndHorizontal();
		}
		if ( GUILayout.Button("+", GUILayout.Width(24)) ) {
			chainProp.arraySize += 1;
			skipProp.arraySize += 1;
		}
		if (removeId != -1) {
			chainProp.DeleteArrayElementAtIndex(removeId); //this line works as expected
			skipProp.DeleteArrayElementAtIndex(removeId); //this line will crash unity
		}
            serializedObject.ApplyModifiedProperties();
	}
}

I’m using Unity 4.3.2. is it a bug or am I missing something here.

2

i’ve got the same issue on unity 5