using Content.Shared.DeviceNetwork.Components; using Content.Shared.Interaction; using Content.Shared.Power.EntitySystems; using Content.Shared.PowerCell; using Content.Shared.Radio.EntitySystems; using Content.Shared.Radio.Components; using Content.Shared.DeviceNetwork.Systems; namespace Content.Server.Radio.EntitySystems; public sealed class JammerSystem : SharedJammerSystem { [Dependency] private readonly PowerCellSystem _powerCell = default!; [Dependency] private readonly SharedBatterySystem _battery = default!; [Dependency] private readonly SharedTransformSystem _transform = default!; [Dependency] private readonly SharedDeviceNetworkJammerSystem _jammer = default!; public override void Initialize() { base.Initialize(); SubscribeLocalEvent(OnRadioSendAttempt); SubscribeLocalEvent(OnRadioReceiveAttempt); } private void OnRadioSendAttempt(ref RadioSendAttemptEvent args) { if (ShouldCancel(args.RadioSource, args.Channel.Frequency)) args.Cancelled = true; } private void OnRadioReceiveAttempt(ref RadioReceiveAttemptEvent args) { if (ShouldCancel(args.RadioReceiver, args.Channel.Frequency)) args.Cancelled = true; } private bool ShouldCancel(EntityUid sourceUid, int frequency) { var source = Transform(sourceUid).Coordinates; var query = EntityQueryEnumerator(); while (query.MoveNext(out var uid, out _, out var jam, out var transform)) { // Check if this jammer excludes the frequency if (jam.FrequenciesExcluded.Contains(frequency)) continue; if (_transform.InRange(source, transform.Coordinates, GetCurrentRange((uid, jam)))) { return true; } } return false; } }