50 lines
1.5 KiB
C#
50 lines
1.5 KiB
C#
using Content.Server.Damage.Components;
|
|
using Content.Shared.Damage;
|
|
using Content.Shared.StepTrigger;
|
|
|
|
namespace Content.Server.Damage.Systems;
|
|
|
|
// System for damage that occurs on specific triggers.
|
|
// This is originally meant for mousetraps, but could
|
|
// probably be extended to fit other triggers as well.
|
|
public sealed class DamageOnTriggerSystem : EntitySystem
|
|
{
|
|
[Dependency] private readonly DamageableSystem _damageableSystem = default!;
|
|
|
|
public override void Initialize()
|
|
{
|
|
SubscribeLocalEvent<DamageOnTriggerComponent, StepTriggeredEvent>(OnStepTrigger);
|
|
}
|
|
|
|
private void OnStepTrigger(EntityUid uid, DamageOnTriggerComponent component, ref StepTriggeredEvent args)
|
|
{
|
|
OnDamageTrigger(uid, args.Tripper, component);
|
|
}
|
|
|
|
private void OnDamageTrigger(EntityUid source, EntityUid target, DamageOnTriggerComponent? component = null)
|
|
{
|
|
if (!Resolve(source, ref component))
|
|
{
|
|
return;
|
|
}
|
|
|
|
var damage = new DamageSpecifier(component.Damage);
|
|
var ev = new BeforeDamageOnTriggerEvent(damage, target);
|
|
RaiseLocalEvent(source, ev);
|
|
|
|
_damageableSystem.TryChangeDamage(target, ev.Damage, component.IgnoreResistances);
|
|
}
|
|
}
|
|
|
|
public sealed class BeforeDamageOnTriggerEvent : EntityEventArgs
|
|
{
|
|
public DamageSpecifier Damage { get; set; }
|
|
public EntityUid Tripper { get; }
|
|
|
|
public BeforeDamageOnTriggerEvent(DamageSpecifier damage, EntityUid target)
|
|
{
|
|
Damage = damage;
|
|
Tripper = target;
|
|
}
|
|
}
|