Files
tbd-station-14/Content.Server/Pointing/EntitySystems/RoguePointingSystem.cs
2023-10-19 12:34:31 -07:00

105 lines
4.0 KiB
C#

using Content.Server.Explosion.EntitySystems;
using Content.Server.Pointing.Components;
using Content.Shared.Pointing.Components;
using JetBrains.Annotations;
using Robust.Shared.Random;
namespace Content.Server.Pointing.EntitySystems
{
[UsedImplicitly]
internal sealed class RoguePointingSystem : EntitySystem
{
[Dependency] private readonly IRobustRandom _random = default!;
[Dependency] private readonly ExplosionSystem _explosion = default!;
[Dependency] private readonly SharedAppearanceSystem _appearance = default!;
private EntityUid? RandomNearbyPlayer(EntityUid uid, RoguePointingArrowComponent? component = null, TransformComponent? transform = null)
{
if (!Resolve(uid, ref component, ref transform))
return null;
var targets = new List<Entity<PointingArrowAngeringComponent>>();
var query = EntityQueryEnumerator<PointingArrowAngeringComponent>();
while (query.MoveNext(out var angeringUid, out var angeringComp))
{
targets.Add((angeringUid, angeringComp));
}
if (targets.Count == 0)
return null;
var angering = _random.Pick(targets);
angering.Comp.RemainingAnger -= 1;
if (angering.Comp.RemainingAnger <= 0)
RemComp<PointingArrowAngeringComponent>(uid);
return angering.Owner;
}
private void UpdateAppearance(EntityUid uid, RoguePointingArrowComponent? component = null, TransformComponent? transform = null, AppearanceComponent? appearance = null)
{
if (!Resolve(uid, ref component, ref transform, ref appearance) || component.Chasing == null)
return;
_appearance.SetData(uid, RoguePointingArrowVisuals.Rotation, transform.LocalRotation.Degrees, appearance);
}
public void SetTarget(EntityUid arrow, EntityUid target, RoguePointingArrowComponent? component = null)
{
if (!Resolve(arrow, ref component))
throw new ArgumentException("Input was not a rogue pointing arrow!", nameof(arrow));
component.Chasing = target;
}
public override void Update(float frameTime)
{
var query = EntityQueryEnumerator<RoguePointingArrowComponent, TransformComponent>();
while (query.MoveNext(out var uid, out var component, out var transform))
{
component.Chasing ??= RandomNearbyPlayer(uid, component, transform);
if (component.Chasing is not {Valid: true} chasing || Deleted(chasing))
{
EntityManager.QueueDeleteEntity(uid);
continue;
}
component.TurningDelay -= frameTime;
if (component.TurningDelay > 0)
{
var difference = Comp<TransformComponent>(chasing).WorldPosition - transform.WorldPosition;
var angle = difference.ToAngle();
var adjusted = angle.Degrees + 90;
var newAngle = Angle.FromDegrees(adjusted);
transform.WorldRotation = newAngle;
UpdateAppearance(uid, component, transform);
continue;
}
transform.WorldRotation += Angle.FromDegrees(20);
UpdateAppearance(uid, component, transform);
var toChased = Comp<TransformComponent>(chasing).WorldPosition - transform.WorldPosition;
transform.WorldPosition += toChased * frameTime * component.ChasingSpeed;
component.ChasingTime -= frameTime;
if (component.ChasingTime > 0)
{
continue;
}
_explosion.QueueExplosion(uid, ExplosionSystem.DefaultExplosionPrototypeId, 50, 3, 10);
EntityManager.QueueDeleteEntity(uid);
}
}
}
}