public static IReadOnlyList <IVerb <Entity> > GenerateVerbs()
{
List <IVerb <Entity> > output = new List <IVerb <Entity> >()
{
ZeroTarget(a => new QuitGameCommand(), "quit"),
ZeroTarget(a => new DropAllAction(a), "drop all", "put down all", "discard all"),
ZeroTarget(a => new TakeAllAction(a), "take all", "get all", "pick up all"),
ZeroTarget(a => new InventoryAction(a), "inventory", "i", "items"),
ZeroTarget(a => new LookAction(a), "look", "examine", "x"),
ZeroTarget(a => new WaitAction(a), "wait"),
ZeroTarget(a => new CampAction(a), "camp", "make camp"),
ZeroTarget(a => new RelaxAction(a, new Random().NextDouble()), "relax", "rest"),
OneTargetWithTool((actor, target, weapon) => new HitAction(actor, target, weapon), "hit", "strike", "attack"),
OneTarget((a, t) => new DropAction(a, t), "drop", "put down", "discard"),
OneTarget((a, t) => new TakeAction(a, t), "take", "get", "pick up"),
OneTarget((a, t) => new ConsumeAction(a, t), "consume"),
OneTarget((a, t) => new ConsumeAction(a, t, ConsumeMode.Eat), "eat"),
OneTarget((a, t) => new ConsumeAction(a, t, ConsumeMode.Drink), "drink"),
OneTarget((a, t) => new HitAction(a, t), "hit", "strike", "attack"),
};
foreach (Direction d in DirectionExtensions.EnumerateDirections())
{
string name = d.Name();
string letter = name[0].ToString();
var moveVerb = ZeroTarget(a => new DirectionMoveAction(a, d), name, letter, "go " + name, "go " + letter);
output.Add(moveVerb);
}
return(output);
}
public static OutputEntry GetDescription(Entity scene, Entity viewer)
{
Entity you = viewer;
InteractiveSpan resolver(object symbol)
{
if (symbol is Entity entity)
{
if (entity.Id.Equals(viewer.Id))
{
return(new InteractiveSpan("you"));
}
return(entity.GenerateMenu(viewer));
}
else
{
throw new Exception($"Unexpected entry {symbol}");
}
}
OutputTemplate sceneDescription = new();
Senses? senses = viewer.Get <Senses>();
if (senses is null)
{
sceneDescription.AddFormat($"{you} cannot perceive anything.");
return(sceneDescription.Render(resolver));
}
if (scene.Has(out SceneDescription? desc))
{
sceneDescription.AddLines(desc.Lines);
}
else if (scene.Has(out Name? sceneName))
{
sceneDescription.AddFormat($"{you} are inside {scene}.");
}
else
{
sceneDescription.AddFormat($"{you} are inside an unnamed object.");
}
bool displayedItem = false;
foreach (Entity item in scene.GetMembers <Location>())
{
if (!displayedItem)
{
sceneDescription.AddLine("Nearby objects:");
}
if (item.Has <Visibility>())
{
sceneDescription.AddFormat($"- {item}");
displayedItem = true;
}
}
if (!displayedItem)
{
sceneDescription.AddLine("There are no items here");
}
if (scene.Has <RoomExits>(out var roomExits))
{
bool printedHeader = false;
foreach (Direction direction in DirectionExtensions.EnumerateDirections())
{
if (roomExits.GetFacing(direction).HasValue)
{
if (!printedHeader)
{
sceneDescription.AddLine("Exits:");
printedHeader = true;
}
sceneDescription.AddLine($"- Exit facing {direction.Name()}");
}
}
}
return(sceneDescription.Render(resolver));
}