Files
tbd-station-14/Content.Server/Utility/InteractionChecks.cs
2020-05-23 17:23:25 +02:00

101 lines
4.5 KiB
C#

using System;
using Content.Server.GameObjects.EntitySystems;
using Content.Shared.Interfaces;
using Content.Shared.Physics;
using Robust.Shared.GameObjects.Systems;
using Robust.Shared.Interfaces.GameObjects;
using Robust.Shared.Interfaces.Map;
using Robust.Shared.IoC;
using Robust.Shared.Localization;
using Robust.Shared.Map;
using Robust.Shared.Maths;
namespace Content.Server.Utility
{
/// <summary>
/// Convenient methods for checking for various conditions commonly needed
/// for interactions.
/// </summary>
public static class InteractionChecks
{
/// <summary>
/// Default interaction check for targeted attack interaction types.
/// Same as <see cref="SharedInteractionSystem.InRangeUnobstructed"/>, but defaults to allow inside blockers.
/// Validates that attacker is in range of the attacked entity. Additionally shows a popup if
/// validation fails.
/// </summary>
public static bool InRangeUnobstructed(ITargetedInteractEventArgs eventArgs, bool insideBlockerValid = true)
{
if (!EntitySystem.Get<SharedInteractionSystem>().InRangeUnobstructed(eventArgs.User.Transform.MapPosition,
eventArgs.Target.Transform.WorldPosition, ignoredEnt: eventArgs.Target, insideBlockerValid: insideBlockerValid))
{
var localizationManager = IoCManager.Resolve<ILocalizationManager>();
eventArgs.Target.PopupMessage(eventArgs.User, localizationManager.GetString("You can't reach there!"));
return false;
}
return true;
}
/// <summary>
/// Default interaction check for after attack interaction types.
/// Same as <see cref="SharedInteractionSystem.InRangeUnobstructed"/>, but defaults to allow inside blockers.
/// Validates that attacker is in range of the attacked entity, if there is such an entity.
/// If there is no attacked entity, validates that they are in range of the clicked position.
/// Additionally shows a popup if validation fails.
/// </summary>
public static bool InRangeUnobstructed(AfterInteractEventArgs eventArgs, bool insideBlockerValid = true)
{
if (eventArgs.Target != null)
{
if (!EntitySystem.Get<SharedInteractionSystem>().InRangeUnobstructed(eventArgs.User.Transform.MapPosition,
eventArgs.Target.Transform.WorldPosition, ignoredEnt: eventArgs.Target, insideBlockerValid: insideBlockerValid))
{
var localizationManager = IoCManager.Resolve<ILocalizationManager>();
eventArgs.Target.PopupMessage(eventArgs.User, localizationManager.GetString("You can't reach there!"));
return false;
}
}
else
{
var mapManager = IoCManager.Resolve<IMapManager>();
if (!EntitySystem.Get<SharedInteractionSystem>().InRangeUnobstructed(eventArgs.User.Transform.MapPosition,
eventArgs.ClickLocation.ToMapPos(mapManager), ignoredEnt: eventArgs.User, insideBlockerValid: insideBlockerValid))
{
var localizationManager = IoCManager.Resolve<ILocalizationManager>();
eventArgs.User.PopupMessage(eventArgs.User, localizationManager.GetString("You can't reach there!"));
return false;
}
}
return true;
}
/// <summary>
/// Convenient static alternative to <see cref="SharedInteractionSystem.InRangeUnobstructed"/>, which also
/// shows a popup message if not in range.
/// </summary>
public static bool InRangeUnobstructed(IEntity user, Vector2 targetWorldCoords,
float range = SharedInteractionSystem.InteractionRange,
int collisionMask = (int) CollisionGroup.Impassable, IEntity ignoredEnt = null,
bool insideBlockerValid = false)
{
var interactionSystem = EntitySystem.Get<SharedInteractionSystem>();
if (!interactionSystem.InRangeUnobstructed(user.Transform.MapPosition, targetWorldCoords, range, collisionMask,
ignoredEnt, insideBlockerValid))
{
var localizationManager = IoCManager.Resolve<ILocalizationManager>();
user.PopupMessage(user, localizationManager.GetString("You can't reach there!"));
return false;
}
return true;
}
}
}