Initial Combat Implementation

Assets/_Project/Scripts/Authoring/Combat/ProjectileSpawnerAuthoring.cs

@@ -0,0 +1,34 @@
+using ProjectM.Simulation;
+using Unity.Entities;
+using UnityEngine;
+
+namespace ProjectM.Authoring
+{
+    /// <summary>
+    /// Authoring placed once in the gameplay subscene. Bakes a <see cref="ProjectileSpawner"/>
+    /// singleton holding the projectile ghost prefab entity, which the predicted AbilityFireSystem
+    /// instantiates whenever a player fires. The spawner itself carries no transform (it is a pure
+    /// data singleton) so it is baked with <c>TransformUsageFlags.None</c>, while the referenced
+    /// prefab is baked with <c>TransformUsageFlags.Dynamic</c> so the spawned projectile has a
+    /// runtime-mutable LocalTransform.
+    /// </summary>
+    public class ProjectileSpawnerAuthoring : MonoBehaviour
+    {
+        [Tooltip("The projectile ghost prefab spawned when a player fires.")]
+        public GameObject ProjectilePrefab;
+
+        private class ProjectileSpawnerBaker : Baker<ProjectileSpawnerAuthoring>
+        {
+            public override void Bake(ProjectileSpawnerAuthoring authoring)
+            {
+                // The spawner itself needs no transform; it is a data singleton.
+                var entity = GetEntity(authoring, TransformUsageFlags.None);
+
+                AddComponent(entity, new ProjectileSpawner
+                {
+                    Prefab = GetEntity(authoring.ProjectilePrefab, TransformUsageFlags.Dynamic)
+                });
+            }
+        }
+    }
+}