Trigger Refactor (#39034)

Content.Shared/Trigger/Systems/TriggerSystem.Spawn.cs

@@ -0,0 +1,70 @@
+using Content.Shared.Trigger.Components.Effects;
+using Content.Shared.Trigger.Components.Triggers;
+
+namespace Content.Shared.Trigger.Systems;
+
+public sealed partial class TriggerSystem
+{
+
+    private void InitializeSpawn()
+    {
+        SubscribeLocalEvent<TriggerOnSpawnComponent, MapInitEvent>(OnSpawnInit);
+
+        SubscribeLocalEvent<SpawnOnTriggerComponent, TriggerEvent>(HandleSpawnOnTrigger);
+        SubscribeLocalEvent<DeleteOnTriggerComponent, TriggerEvent>(HandleDeleteOnTrigger);
+    }
+
+    private void OnSpawnInit(Entity<TriggerOnSpawnComponent> ent, ref MapInitEvent args)
+    {
+        Trigger(ent.Owner, null, ent.Comp.KeyOut);
+    }
+
+    private void HandleSpawnOnTrigger(Entity<SpawnOnTriggerComponent> ent, ref TriggerEvent args)
+    {
+        if (args.Key != null && !ent.Comp.KeysIn.Contains(args.Key))
+            return;
+
+        var target = ent.Comp.TargetUser ? args.User : ent.Owner;
+
+        if (target == null)
+            return;
+
+        var xform = Transform(target.Value);
+
+        if (ent.Comp.UseMapCoords)
+        {
+            var mapCoords = _transform.GetMapCoordinates(target.Value, xform);
+            if (ent.Comp.Predicted)
+                EntityManager.PredictedSpawn(ent.Comp.Proto, mapCoords);
+            else if (_net.IsServer)
+                Spawn(ent.Comp.Proto, mapCoords);
+
+        }
+        else
+        {
+            var coords = xform.Coordinates;
+            if (!coords.IsValid(EntityManager))
+                return;
+
+            if (ent.Comp.Predicted)
+                PredictedSpawnAttachedTo(ent.Comp.Proto, coords);
+            else if (_net.IsServer)
+                SpawnAttachedTo(ent.Comp.Proto, coords);
+
+        }
+    }
+
+    private void HandleDeleteOnTrigger(Entity<DeleteOnTriggerComponent> ent, ref TriggerEvent args)
+    {
+        if (args.Key != null && !ent.Comp.KeysIn.Contains(args.Key))
+            return;
+
+        var target = ent.Comp.TargetUser ? args.User : ent.Owner;
+
+        if (target == null)
+            return;
+
+        PredictedQueueDel(target);
+        args.Handled = true;
+    }
+}