/// <summary>
/// Определяем, может ли команда выполниться.
/// </summary>
/// <returns> Возвращает true, если перемещение возможно. Иначе, false. </returns>
public override CanExecuteCheckResult CanExecute()
{
var nodeViewModel = GetHoverNodeViewModel();
if (nodeViewModel is null)
{
return(CanExecuteCheckResult.CreateFailed("No hover node."));
}
if (PlayerState.ActiveActor?.Actor is null)
{
return(CanExecuteCheckResult.CreateFailed("Active actor is not assigned."));
}
CreatePath(nodeViewModel);
var pathIsNotEmpty = Path.Any();
if (!pathIsNotEmpty)
{
return(CanExecuteCheckResult.CreateFailed("Found path is not correct or empty."));
}
return(CanExecuteCheckResult.CreateSuccessful());
}
public override CanExecuteCheckResult CanExecute()
{
var sector = _player.SectorNode.Sector;
if (sector is null)
{
throw new InvalidOperationException();
}
var map = sector.Map;
var activeActorViewModel = PlayerState.ActiveActor;
if (activeActorViewModel is null)
{
return(CanExecuteCheckResult.CreateFailed("Active actor is not assigned."));
}
var currentNode = activeActorViewModel.Actor.Node;
var target = GetTarget(PlayerState);
if (target is null)
{
return(CanExecuteCheckResult.CreateFailed("Invalid target."));
}
var targetNode = target.Node;
var act = PlayerState.TacticalAct;
if (act is null)
{
return(CanExecuteCheckResult.CreateFailed("Act is not assigned."));
}
if (act.Constrains?.EnergyCost > 0 && activeActorViewModel.Actor.Person.GetModule <ISurvivalModule>().Stats
.SingleOrDefault(x => x.Type == SurvivalStatType.Energy)?.Value < 0)
{
return(CanExecuteCheckResult.CreateFailed("The energy is critically low."));
}
if ((act.Stats.Targets & TacticalActTargets.Self) > 0 &&
ReferenceEquals(activeActorViewModel.Actor, target))
{
// Лечить можно только самого себя.
// Возможно, дальше будут компаньоны и другие НПЦ.
// Тогда эту проверку нужно будет доработать.
return(CanExecuteCheckResult.CreateSuccessful());
}
// Проверка, что цель достаточно близка по дистации и видна.
if (act.Stats.Range == null)
{
return(CanExecuteCheckResult.CreateFailed("Act range is not valid."));
}
var isInDistance = act.CheckDistance(currentNode, targetNode, sector.Map);
if (!isInDistance)
{
return(CanExecuteCheckResult.CreateFailed("Target is out of range."));
}
var targetIsOnLine = map.TargetIsOnLine(currentNode, targetNode);
if (!targetIsOnLine)
{
return(CanExecuteCheckResult.CreateFailed("Target is not on line of sight."));
}
// Проверка наличия ресурсов для выполнения действия
if (act.Constrains?.PropResourceType != null && act.Constrains?.PropResourceCount != null)
{
var hasPropResource = CheckPropResource(
activeActorViewModel.Actor.Person.GetModule <IInventoryModule>(),
act.Constrains.PropResourceType,
act.Constrains.PropResourceCount.Value);
if (!hasPropResource)
{
return(CanExecuteCheckResult.CreateFailed("Has not enought resources to perform act."));
}
}
// Проверка КД
if (act.CurrentCooldown > 0)
{
return(CanExecuteCheckResult.CreateFailed("Act cooldown is not over."));
}
return(CanExecuteCheckResult.CreateSuccessful());
}
