void ShowStates(SerializedProperty statesProperty, StateLayer layer)
{
for (int i = 0; i < statesProperty.arraySize; i++)
{
SerializedProperty stateProperty = statesProperty.GetArrayElementAtIndex(i);
State state = stateProperty.GetValue <UnityEngine.Object>() as State;
if (state == null)
{
ShowLayer(statesProperty, i);
continue;
}
BeginBox(GetBoxStyle(state));
Foldout(stateProperty, StateMachineUtility.FormatState(state.GetType(), layer).ToGUIContent(), GetStateStyle(state));
Reorderable(statesProperty, i, true);
ShowState(stateProperty);
EndBox();
}
}
GUIContent GetLayerLabel(StateLayer layer)
{
string label = layer.GetType().Name;
if (Application.isPlaying && PrefabUtility.GetPrefabType(machine) != PrefabType.Prefab)
{
IState[] activeStates = layer.GetActiveStates();
string[] activeStateNames = new string[activeStates.Length];
for (int i = 0; i < activeStateNames.Length; i++)
{
activeStateNames[i] = activeStates[i] is IStateLayer ? activeStates[i].GetTypeName() : StateMachineUtility.FormatState(activeStates[i].GetType(), layer);
}
label += " (" + activeStateNames.Concat(", ") + ")";
}
return(label.ToGUIContent());
}
void ShowLayer(SerializedProperty layersProperty, int index)
{
SerializedProperty layerProperty = layersProperty.GetArrayElementAtIndex(index);
StateLayer layer = layerProperty.GetValue <StateLayer>();
SerializedObject layerSerialized = new SerializedObject(layer);
SerializedProperty statesProperty = layerSerialized.FindProperty("stateReferences");
SerializedProperty activeStatesProperty = layerSerialized.FindProperty("activeStateReferences");
StateMachineUtility.AddMissingStates(machine, layer);
BeginBox(GetBoxStyle(layer));
Rect rect = EditorGUILayout.BeginHorizontal();
ShowLayerOptions(layer, rect);
if (DeleteFoldOut(layersProperty, index, GetLayerLabel(layer), GetLayerStyle(layer)))
{
StateMachineUtility.RemoveLayer(machine, layer);
return;
}
EditorGUILayout.EndHorizontal();
CleanUpStates(statesProperty);
if (layerProperty.isExpanded)
{
EditorGUI.indentLevel += 1;
List <string> currentLayerStatesName = new List <string> {
"Empty"
};
IState[] states = statesProperty.GetValues <IState>();
for (int i = 0; i < states.Length; i++)
{
IState state = states[i];
currentLayerStatesName.Add(state is IStateLayer ? state.GetTypeName() : StateMachineUtility.FormatState(state.GetType(), layer));
}
for (int i = 0; i < activeStatesProperty.arraySize; i++)
{
SerializedProperty activeStateProperty = activeStatesProperty.GetArrayElementAtIndex(i);
UnityEngine.Object activeState = activeStateProperty.objectReferenceValue;
if (Selection.gameObjects.Length <= 1)
{
Rect dragArea = EditorGUILayout.BeginHorizontal();
EditorGUI.BeginChangeCheck();
int stateIndex = EditorGUILayout.Popup(string.Format("Active State ({0})", i), statesProperty.IndexOf(activeState) + 1, currentLayerStatesName.ToArray(), GUILayout.MinWidth(200)) - 1;
activeState = stateIndex == -1 ? null : statesProperty.GetValue <UnityEngine.Object>(Mathf.Clamp(stateIndex, 0, statesProperty.arraySize - 1));
activeStateProperty.SetValue(activeState);
if (EditorGUI.EndChangeCheck() && Application.isPlaying)
{
layer.SwitchState(activeState == null ? typeof(EmptyState) : activeState.GetType(), i);
}
if (i == 0)
{
SmallAddButton(activeStatesProperty);
}
else if (DeleteButton(activeStatesProperty, i))
{
break;
}
EditorGUILayout.EndHorizontal();
Reorderable(activeStatesProperty, i, true, EditorGUI.IndentedRect(dragArea));
}
else
{
GUI.Box(EditorGUI.IndentedRect(EditorGUILayout.GetControlRect()), "Multi-editing is not supported.", new GUIStyle(EditorStyles.helpBox));
}
}
Separator();
ShowLayerFields(layerSerialized);
bool stateSeparator = statesProperty.arraySize > 0;
layerSerialized.ApplyModifiedProperties();
ShowStates(statesProperty, layer);
if (stateSeparator)
{
Separator();
}
EditorGUI.indentLevel -= 1;
}
EndBox();
}