Replicated the weapon flying tick setup using resources

addons/forge/editor/statescript/StatescriptVariablePanel.UndoRedoCallbacks.cs

@@ -0,0 +1,153 @@
+// Copyright © Gamesmiths Guild.
+
+#if TOOLS
+using Gamesmiths.Forge.Godot.Resources.Statescript;
+using Godot;
+
+namespace Gamesmiths.Forge.Godot.Editor.Statescript;
+
+internal sealed partial class StatescriptVariablePanel
+{
+	private static void SetArrayElementValue(StatescriptGraphVariable variable, int index, Variant newValue)
+	{
+		variable.InitialArrayValues[index] = newValue;
+		variable.EmitChanged();
+	}
+
+	private void SetVariableValue(StatescriptGraphVariable variable, Variant newValue)
+	{
+		Variant oldValue = variable.InitialValue;
+
+		variable.InitialValue = newValue;
+		variable.EmitChanged();
+
+		if (_undoRedo is not null)
+		{
+			_undoRedo.CreateAction(
+				$"Change Variable '{variable.VariableName}'",
+				customContext: _graph);
+
+			_undoRedo.AddDoMethod(
+				this,
+				MethodName.ApplyVariableValue,
+				variable,
+				newValue);
+
+			_undoRedo.AddUndoMethod(
+				this,
+				MethodName.ApplyVariableValue,
+				variable,
+				oldValue);
+
+			_undoRedo.CommitAction(false);
+		}
+	}
+
+	private void ApplyVariableValue(StatescriptGraphVariable variable, Variant value)
+	{
+		variable.InitialValue = value;
+		variable.EmitChanged();
+		RebuildList();
+		VariableUndoRedoPerformed?.Invoke();
+	}
+
+	private void DoAddVariable(StatescriptGraph graph, StatescriptGraphVariable variable)
+	{
+		graph.Variables.Add(variable);
+		RebuildList();
+		VariablesChanged?.Invoke();
+	}
+
+	private void UndoAddVariable(StatescriptGraph graph, StatescriptGraphVariable variable)
+	{
+		graph.Variables.Remove(variable);
+		RebuildList();
+		VariablesChanged?.Invoke();
+		VariableUndoRedoPerformed?.Invoke();
+	}
+
+	private void DoRemoveVariable(StatescriptGraph graph, StatescriptGraphVariable variable, int index)
+	{
+		graph.Variables.RemoveAt(index);
+		ClearReferencesToVariable(variable.VariableName);
+		RebuildList();
+		VariablesChanged?.Invoke();
+	}
+
+	private void UndoRemoveVariable(StatescriptGraph graph, StatescriptGraphVariable variable, int index)
+	{
+		if (index >= graph.Variables.Count)
+		{
+			graph.Variables.Add(variable);
+		}
+		else
+		{
+			graph.Variables.Insert(index, variable);
+		}
+
+		RebuildList();
+		VariablesChanged?.Invoke();
+		VariableUndoRedoPerformed?.Invoke();
+	}
+
+	private void DoAddArrayElement(StatescriptGraphVariable variable, Variant value)
+	{
+		variable.InitialArrayValues.Add(value);
+		variable.EmitChanged();
+		_expandedArrays.Add(variable.VariableName);
+		SaveExpandedArrayState();
+		RebuildList();
+	}
+
+	private void UndoAddArrayElement(StatescriptGraphVariable variable)
+	{
+		if (variable.InitialArrayValues.Count > 0)
+		{
+			variable.InitialArrayValues.RemoveAt(variable.InitialArrayValues.Count - 1);
+			variable.EmitChanged();
+		}
+
+		RebuildList();
+		VariableUndoRedoPerformed?.Invoke();
+	}
+
+	private void DoRemoveArrayElement(StatescriptGraphVariable variable, int index)
+	{
+		variable.InitialArrayValues.RemoveAt(index);
+		variable.EmitChanged();
+		RebuildList();
+	}
+
+	private void UndoRemoveArrayElement(StatescriptGraphVariable variable, int index, Variant value)
+	{
+		if (index >= variable.InitialArrayValues.Count)
+		{
+			variable.InitialArrayValues.Add(value);
+		}
+		else
+		{
+			variable.InitialArrayValues.Insert(index, value);
+		}
+
+		variable.EmitChanged();
+		RebuildList();
+		VariableUndoRedoPerformed?.Invoke();
+	}
+
+	private void DoSetArrayExpanded(string variableName, bool expanded)
+	{
+		if (expanded)
+		{
+			_expandedArrays.Add(variableName);
+		}
+		else
+		{
+			_expandedArrays.Remove(variableName);
+		}
+
+		SaveExpandedArrayState();
+		RebuildList();
+		VariableUndoRedoPerformed?.Invoke();
+	}
+}
+#endif