"Skeleton" entries for Unavailable Commands

[ckx]

Some commands aren't usable when a game is initially launched, because they rely on members of classes which aren't instantiated yet (especially for debug stuff). I dislike that these commands are not added to the commands output, so in one game project, I wrote a helper function to add unavailable commands to the console.

            InitialConsoleCommands.Add("Scene", new List<string[]>() { new string[2] { "list_scene_entities", "Lists all entities currently in a scene." } } );
            InitialConsoleCommands.Add("DrawSystem", new List<string[]>() { new string[2] { "draw_hitboxes", "Draws all hit / hurt boxes on screen." },
                new string[2] { "draw_wireframe", "Enables wireframe mode."} });

            foreach (KeyValuePair<string, List<string[]>> kvp in InitialConsoleCommands) {
                foreach (string[] sa in kvp.Value) {
                    devConsole.AddCommand(sa[0], delegate {
                        devConsole.Log($"Unavailable command. {kvp.Key} object is required before usage.");
                    }, sa[1]);
                }
            }

This is a problem that might be better solved in the game console library. A simple "AddUnavailableCommand" would do.

• Unavailable commands should be indicated as "Not yet usable" or something in the output of commands
• When a new command is added to the main commands map, it should iterate over all the unavailable commands, and remove the appropriate "unavailable" element.

While doing this, consider loading commands from a data file to make the whole skeleton command process simple across different projects (and to keep command documentation out of code).