88 lines
3.2 KiB
C#
88 lines
3.2 KiB
C#
using Content.Shared.GameObjects.Components.Mobs;
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using JetBrains.Annotations;
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using Robust.Shared.GameObjects.Systems;
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using Robust.Shared.Interfaces.GameObjects;
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using Robust.Shared.Maths;
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using Robust.Shared.Utility;
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namespace Content.Shared.GameObjects.EntitySystems
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{
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public interface IExamine
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{
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/// <summary>
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/// Returns a status examine value for components appended to the end of the description of the entity
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/// </summary>
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/// <param name="message">The message to append to which will be displayed.</param>
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/// <param name="inDetailsRange">Whether the examiner is within the 'Details' range, allowing you to show information logically only availabe when close to the examined entity.</param>
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void Examine(FormattedMessage message, bool inDetailsRange);
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}
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public abstract class ExamineSystemShared : EntitySystem
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{
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public const float ExamineRange = 16f;
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public const float ExamineRangeSquared = ExamineRange * ExamineRange;
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protected const float ExamineDetailsRange = 3f;
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[Pure]
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protected static bool CanExamine(IEntity examiner, IEntity examined)
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{
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if (!examiner.TryGetComponent(out ExaminerComponent examinerComponent))
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{
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return false;
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}
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if (!examinerComponent.DoRangeCheck)
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{
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return true;
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}
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if (examiner.Transform.MapID != examined.Transform.MapID)
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{
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return false;
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}
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return EntitySystem.Get<SharedInteractionSystem>()
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.InRangeUnobstructed(examiner.Transform.MapPosition, examined.Transform.MapPosition,
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ExamineRange, predicate: entity => entity == examiner || entity == examined, ignoreInsideBlocker:true);
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}
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public static FormattedMessage GetExamineText(IEntity entity, IEntity examiner)
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{
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var message = new FormattedMessage();
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var doNewline = false;
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//Add an entity description if one is declared
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if (!string.IsNullOrEmpty(entity.Description))
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{
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message.AddText(entity.Description);
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doNewline = true;
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}
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message.PushColor(Color.DarkGray);
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var inDetailsRange = Get<SharedInteractionSystem>()
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.InRangeUnobstructed(examiner.Transform.MapPosition, entity.Transform.MapPosition,
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ExamineDetailsRange, predicate: entity0 => entity0 == examiner || entity0 == entity, ignoreInsideBlocker: true);
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//Add component statuses from components that report one
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foreach (var examineComponent in entity.GetAllComponents<IExamine>())
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{
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var subMessage = new FormattedMessage();
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examineComponent.Examine(subMessage, inDetailsRange);
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if (subMessage.Tags.Count == 0)
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continue;
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if (doNewline)
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message.AddText("\n");
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message.AddMessage(subMessage);
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doNewline = true;
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}
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message.Pop();
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return message;
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}
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}
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}
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