/// <summary>
/// Inserts a new state element in the state array.
/// </summary>
private static Opsive.Shared.StateSystem.State[] InsertStateElement(Opsive.Shared.StateSystem.State[] states, ReorderableList reorderableList, string selectedIndexKey, string name, PersistablePreset preset)
{
// The name has to be unique to prevent it from interferring with other state names.
if (!IsUniqueName(states, name))
{
var postfixIndex = 1;
while (!IsUniqueName(states, name + " " + postfixIndex))
{
postfixIndex++;
}
name += " " + postfixIndex;
}
// Create the element.
var state = new Opsive.Shared.StateSystem.State(name, false);
state.Preset = preset;
var stateList = new List <Opsive.Shared.StateSystem.State>(states);
stateList.Insert(0, state);
reorderableList.displayRemove = stateList.Count > 1;
// Select the new element.
reorderableList.index = stateList.Count - 1;
EditorPrefs.SetInt(selectedIndexKey, reorderableList.index);
return(stateList.ToArray());
}
/// <summary>
/// Draws all of the added states.
/// </summary>
public static void OnStateListDraw(object obj, Opsive.Shared.StateSystem.State[] states, SerializedProperty statesProperty, Rect rect, int index)
{
if (rect.width < 0)
{
return;
}
// States cannot be edited at runtime, nor can the Default state ever be edited.
GUI.enabled = !Application.isPlaying && index != states.Length - 1;
rect.x -= EditorGUI.indentLevel * Utility.InspectorUtility.IndentWidth;
// Ensure the default state doesn't get changed.
var state = states[index];
var stateProperty = (statesProperty != null ? statesProperty.GetArrayElementAtIndex(index) : null);
if (!Application.isPlaying && index == states.Length - 1)
{
if (statesProperty != null && stateProperty == null)
{
statesProperty.InsertArrayElementAtIndex(index);
stateProperty = statesProperty.GetArrayElementAtIndex(index);
stateProperty.FindPropertyRelative("m_Name").stringValue = "Default";
stateProperty.FindPropertyRelative("m_Default").boolValue = true;
}
else if (statesProperty == null && state == null)
{
states[index] = state = new Opsive.Shared.StateSystem.State("Default", true);
GUI.changed = true;
}
if (state.Name != "Default")
{
if (stateProperty != null)
{
stateProperty.FindPropertyRelative("m_Name").stringValue = "Default";
}
else
{
state.Name = "Default";
}
GUI.changed = true;
}
if (!state.Default)
{
if (stateProperty != null)
{
stateProperty.FindPropertyRelative("m_Default").boolValue = true;
}
else
{
state.Default = true;
}
GUI.changed = true;
}
}
// Setup the field sizings.
var fieldWidth = rect.width / 5;
var blockedByWidth = Mathf.Max(c_MinBlockedByWidth, Mathf.Min(c_MaxBlockedByWidth, fieldWidth)) + EditorGUI.indentLevel * Utility.InspectorUtility.IndentWidth;
fieldWidth = rect.width / 7;
var persistWidth = Mathf.Max(c_MinPersistWidth, Mathf.Min(c_MaxPersistWidth, fieldWidth));
var activateWidth = Mathf.Max(c_MinActivateWidth, Mathf.Min(c_MaxActivateWidth, fieldWidth));
fieldWidth = (rect.width - blockedByWidth - persistWidth - activateWidth) / 2 - (c_WidthBuffer * 3);
var presetWidth = Mathf.Min(c_MaxPresetWidth, fieldWidth) + EditorGUI.indentLevel * 30;
var nameWidth = Mathf.Max(0, rect.width - presetWidth - blockedByWidth - persistWidth - activateWidth - (c_WidthBuffer * 6)) + EditorGUI.indentLevel * 45;
var startRectX = rect.x;
// The state name has to be unique.
var active = state.Active && !state.IsBlocked();
var desiredName = EditorGUI.TextField(new Rect(startRectX, rect.y + 1, nameWidth, EditorGUIUtility.singleLineHeight), state.Name +
(active ? " (Active)" : string.Empty),
(active ? Utility.InspectorStyles.BoldTextField : EditorStyles.textField));
if (!Application.isPlaying && desiredName != state.Name && IsUniqueName(states, desiredName))
{
// The name of the state that is blocking the current state should be updated.
for (int i = 0; i < states.Length; ++i)
{
if (states[i] == state)
{
continue;
}
if (states[i].BlockList != null)
{
for (int j = 0; j < states[i].BlockList.Length; ++j)
{
if (states[i].BlockList[j] == state.Name)
{
if (stateProperty != null)
{
statesProperty.GetArrayElementAtIndex(i).FindPropertyRelative("m_BlockList").GetArrayElementAtIndex(j).stringValue = desiredName;
}
else
{
states[i].BlockList[j] = desiredName;
}
}
}
}
}
if (stateProperty != null)
{
stateProperty.FindPropertyRelative("m_Name").stringValue = desiredName;
}
else
{
state.Name = desiredName;
}
}
startRectX += nameWidth + c_WidthBuffer - EditorGUI.indentLevel * Utility.InspectorUtility.IndentWidth;
// The preset cannot be null.
var desiredPreset = EditorGUI.ObjectField(new Rect(startRectX, rect.y + 1, presetWidth,
EditorGUIUtility.singleLineHeight), string.Empty, state.Preset, typeof(PersistablePreset), false) as PersistablePreset;
if (desiredPreset != null)
{
var objType = TypeUtility.GetType(desiredPreset.Data.ObjectType);
if (objType != null && objType.IsInstanceOfType(obj))
{
if (stateProperty != null)
{
stateProperty.FindPropertyRelative("m_Preset").objectReferenceValue = desiredPreset;
}
else
{
state.Preset = desiredPreset;
}
}
else
{
Debug.LogError($"Error: Unable to add preset. {desiredPreset.name} ({desiredPreset.Data.ObjectType}) doesn't use the same object type ({obj.GetType().FullName}).");
}
}
startRectX += presetWidth + c_WidthBuffer - EditorGUI.indentLevel * Utility.InspectorUtility.IndentWidth;
// Create a popup of the states that can block the current state. There are several conditions which would prevent a state from being able to block
// another state so this popup has to first be filtered.
var stateName = state.Name;
var blockList = state.BlockList;
var allStates = new List <string>();
var selected = 0;
for (int i = 0; i < states.Length; ++i)
{
var currentState = states[i];
if (currentState == null)
{
states[i] = currentState = new Opsive.Shared.StateSystem.State();
}
// The current state cannot block the default state.
if (currentState.Default)
{
continue;
}
string name;
// The current state cannot block itself.
if ((name = currentState.Name) == stateName)
{
continue;
}
// The selected state cannot block the current state if the current state blocks the selected state.
var currentStateBlockList = currentState.BlockList;
var canAdd = true;
if (currentStateBlockList != null)
{
for (int j = 0; j < currentStateBlockList.Length; ++j)
{
if (stateName == currentStateBlockList[j])
{
canAdd = false;
break;
}
}
}
// canAdd will be false if the current state is blocking the selected state.
if (!canAdd)
{
continue;
}
// The current state can block the selected state. Add the name to the popup and determine if the state is selected. A mask is used
// to allow multiple selected states.
allStates.Add(name);
if (blockList != null)
{
for (int j = 0; j < blockList.Length; ++j)
{
if (allStates[allStates.Count - 1] == blockList[j])
{
selected |= 1 << (allStates.Count - 1);
break;
}
}
}
}
// At least one value needs to exist.
if (allStates.Count == 0)
{
allStates.Add("Nothing");
}
// Draw the actual popup.
var blockMask = EditorGUI.MaskField(new Rect(startRectX, rect.y + 1, blockedByWidth, EditorGUIUtility.singleLineHeight), string.Empty, selected, allStates.ToArray());
if (blockMask != selected)
{
var stateNames = new List <string>();
var blockListProperty = (stateProperty != null ? stateProperty.FindPropertyRelative("m_BlockList") : null);
if (blockListProperty != null)
{
blockListProperty.ClearArray();
}
for (int i = 0; i < allStates.Count; ++i)
{
// If the state index is within the block mask then that state should be added to the list. A blockMask of -1 indicates Everything.
if (((1 << i) & blockMask) != 0 || blockMask == -1)
{
if (blockListProperty != null)
{
blockListProperty.InsertArrayElementAtIndex(blockListProperty.arraySize);
blockListProperty.GetArrayElementAtIndex(blockListProperty.arraySize - 1).stringValue = allStates[i];
}
else
{
stateNames.Add(allStates[i]);
}
}
}
if (blockListProperty == null)
{
state.BlockList = stateNames.ToArray();
}
}
startRectX += blockedByWidth + c_WidthBuffer;
GUI.enabled = index < states.Length - 1;
if (GUI.Button(new Rect(startRectX + persistWidth / 2, rect.y + 1, 18, EditorGUIUtility.singleLineHeight), Utility.InspectorStyles.PersistIcon, Utility.InspectorStyles.NoPaddingButtonStyle))
{
// Populate the position map so ObjectInspector.DrawProperties to know which properties already exist.
var valuePositionMap = new Dictionary <int, int>(desiredPreset.Data.ValueHashes.Length);
for (int i = 0; i < desiredPreset.Data.ValueHashes.Length; ++i)
{
valuePositionMap.Add(desiredPreset.Data.ValueHashes[i], i);
}
// Loop through all of the properties on the object.
var properties = Serialization.GetSerializedProperties(obj.GetType(), MemberVisibility.Public);
var bitwiseHash = new System.Version(desiredPreset.Data.Version).CompareTo(new System.Version("3.1")) >= 0;
// Remove and add the properties that are being serialized.
for (int i = 0; i < properties.Length; ++i)
{
var hash = Serialization.StringHash(properties[i].PropertyType.FullName) + Serialization.StringHash(properties[i].Name);
// The property is currently being serialized.
if (valuePositionMap.ContainsKey(hash))
{
// Add the new property to the serialization.
object value = null;
var property = properties[i];
if (!typeof(Object).IsAssignableFrom(property.PropertyType))
{
var unityObjectIndexes = new List <int>();
Serialization.GetUnityObjectIndexes(ref unityObjectIndexes, property.PropertyType, property.Name, 0, valuePositionMap, desiredPreset.Data.ValueHashes, desiredPreset.Data.ValuePositions,
desiredPreset.Data.Values, false, MemberVisibility.Public, bitwiseHash);
Serialization.RemoveProperty(i, unityObjectIndexes, desiredPreset.Data, MemberVisibility.Public, bitwiseHash);
// Get the current value of the active object.
var getMethod = property.GetGetMethod();
if (getMethod != null)
{
value = getMethod.Invoke(obj, null);
}
// Add the property back with the updated value.
Serialization.AddProperty(property, value, unityObjectIndexes, desiredPreset.Data, MemberVisibility.Public);
}
}
}
}
startRectX += persistWidth + c_WidthBuffer;
GUI.enabled = Application.isPlaying && index < states.Length - 1;
if (GUI.Button(new Rect(startRectX + activateWidth / 2, rect.y + 1, 18, EditorGUIUtility.singleLineHeight), Utility.InspectorStyles.ActivateIcon, Utility.InspectorStyles.NoPaddingButtonStyle))
{
StateManager.ActivateState(states[index], !states[index].Active, states);
}
GUI.enabled = true;
}
