Update dialog_base implementation, assets and documentation

src/Scenarios/Impls/SetCommandStrategy.cs

@@ -1,39 +1,9 @@
-using System.Collections.Generic;
-using Cthangover.Core.Localization;
-using Cthangover.Mods.Dialog;
-using Cthangover.Core.UI;
-using Cthangover.Mods.Interface.Base.Lists;
-using Cthangover.Core.UI.Dialog;
-using Cthangover.Core.UI.Event;
-using Cthangover.Core.UI.Executable;
-using Cthangover.Core.Scenarios;
-using Cthangover.Core.Scenes;
-using Cthangover.Core.Interactive;
-
 namespace Cthangover.Mods.Dialog.Scenarios
 {
-    /// <summary>
-    /// Handles the <c>set</c> DSL command. Stores an arbitrary key-value pair
-    /// into the dialog session's variable state via <see cref="DialogQueue.Set"/>.
-    /// Values are read back later through <c>${var}</c> substitution in
-    /// <c>ptext</c> lines and via <see cref="Cthangover.Core.Actions.IActionContext.GetParam"/>
-    /// in scenario actions.
-    /// </summary>
-    public class SetCommandStrategy : IScenarioCommandStrategy, IScenarioCommandSpec
+    /// <summary>Legacy set name value remains literal. The previously unsupported name=expression form calculates a number.</summary>
+    public class SetCommandStrategy : NumericAssignmentCommandStrategy
     {
-        /// <inheritdoc/>
-        public string Command => "set";
-        /// <inheritdoc/>
-        public int MinPositional => 2;
-        /// <inheritdoc/>
-        public int MaxPositional => 2;
-
-        /// <inheritdoc/>
-        public void Execute(DialogQueue dlg, List<string> positional, Dictionary<string, string> named, string arrowTarget, ILocalizationProvider locale)
-        {
-            var name = positional.Count > 0 ? positional[0] : "";
-            var value = positional.Count > 1 ? positional[1] : "";
-            dlg.Set(name, value);
-        }
+        public override string Command => "set";
+        protected override bool CalculatePositional => false;
     }
 }