74 lines
2.5 KiB
C#
74 lines
2.5 KiB
C#
using Content.Shared.Projectiles;
|
|
using Content.Shared.Weapons.Ranged.Components;
|
|
using Robust.Shared.Map;
|
|
using Robust.Shared.Physics;
|
|
using Robust.Shared.Physics.Events;
|
|
using Robust.Shared.Physics.Systems;
|
|
using Robust.Shared.Serialization;
|
|
|
|
namespace Content.Shared.Projectiles
|
|
{
|
|
public abstract class SharedProjectileSystem : EntitySystem
|
|
{
|
|
public const string ProjectileFixture = "projectile";
|
|
|
|
[Dependency] private readonly SharedPhysicsSystem _physics = default!;
|
|
[Dependency] private readonly SharedTransformSystem _transform = default!;
|
|
|
|
public override void Initialize()
|
|
{
|
|
base.Initialize();
|
|
SubscribeLocalEvent<ProjectileComponent, PreventCollideEvent>(PreventCollision);
|
|
SubscribeLocalEvent<EmbeddableProjectileComponent, StartCollideEvent>(OnEmbedCollide);
|
|
}
|
|
|
|
private void OnEmbedCollide(EntityUid uid, EmbeddableProjectileComponent component, ref StartCollideEvent args)
|
|
{
|
|
if (!TryComp<ProjectileComponent>(uid, out var projectile))
|
|
return;
|
|
|
|
_physics.SetLinearVelocity(uid, Vector2.Zero, body: args.OurBody);
|
|
_physics.SetBodyType(uid, BodyType.Static, body: args.OurBody);
|
|
_transform.SetParent(uid, args.OtherEntity);
|
|
var ev = new ProjectileEmbedEvent(projectile.Shooter, projectile.Weapon, args.OtherEntity);
|
|
RaiseLocalEvent(uid, ref ev);
|
|
}
|
|
|
|
private void PreventCollision(EntityUid uid, ProjectileComponent component, ref PreventCollideEvent args)
|
|
{
|
|
if (component.IgnoreShooter && args.OtherEntity == component.Shooter)
|
|
{
|
|
args.Cancelled = true;
|
|
}
|
|
}
|
|
|
|
public void SetShooter(ProjectileComponent component, EntityUid uid)
|
|
{
|
|
if (component.Shooter == uid)
|
|
return;
|
|
|
|
component.Shooter = uid;
|
|
Dirty(component);
|
|
}
|
|
}
|
|
|
|
[Serializable, NetSerializable]
|
|
public sealed class ImpactEffectEvent : EntityEventArgs
|
|
{
|
|
public string Prototype;
|
|
public EntityCoordinates Coordinates;
|
|
|
|
public ImpactEffectEvent(string prototype, EntityCoordinates coordinates)
|
|
{
|
|
Prototype = prototype;
|
|
Coordinates = coordinates;
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Raised when entity is just about to be hit with projectile but can reflect it
|
|
/// </summary>
|
|
[ByRefEvent]
|
|
public record struct ProjectileReflectAttemptEvent(EntityUid ProjUid, ProjectileComponent Component, bool Cancelled);
|