adding the ability to create multiple entites ion a single command bu…

…ffer
tbg10101 · Aug 23, 2020 · d49d854 · d49d854
1 parent 4206e80
commit d49d854
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Showing 2 changed files with 22 additions and 5 deletions.
diff --git a/Runtime/Scripts/MonoBehaviours/Bootstrapper.cs b/Runtime/Scripts/MonoBehaviours/Bootstrapper.cs
@@ -117,13 +117,17 @@ internal EntityMonoBehaviour GetPrefab(int prefabIndex) {
             return _archetypeProducers[prefabIndex].Prefab;
         }
 
-        public (Entity, EntityCommandBuffer) Create(ArchetypeProducer archetypeProducer) {
+        public (Entity, EntityCommandBuffer) Create(
+            ArchetypeProducer archetypeProducer,
+            CreationBufferToken creationBufferToken = null) {
+
             return Create(_archetypeProducerIndices[archetypeProducer]);
         }
 
-        public (Entity, EntityCommandBuffer) Create(int prefabIndex) {
-            EntityCommandBuffer ecb =
-                GetExistingSystem<PostManagedMonoBehaviourUpdateEntityCommandBufferSystem>().CreateCommandBuffer();
+        public (Entity, EntityCommandBuffer) Create(int prefabIndex, CreationBufferToken creationBufferToken = null) {
+            EntityCommandBuffer ecb = creationBufferToken?.EntityCommandBuffer
+                                      ?? GetExistingSystem<PostManagedMonoBehaviourUpdateEntityCommandBufferSystem>()
+                                          .CreateCommandBuffer();
 
             Entity entity = ecb.CreateEntity(_archetypes[prefabIndex]);
             ecb.AddComponent(entity, new SpawnPrefabComponentData {
@@ -138,5 +142,18 @@ public void Destroy(Entity entity) {
                 GetExistingSystem<PostManagedMonoBehaviourUpdateEntityCommandBufferSystem>().CreateCommandBuffer();
             ecb.AddComponent(entity, new DestroyFlagComponentData());
         }
+
+        public CreationBufferToken GetCreationBufferToken() {
+            return new CreationBufferToken {
+                EntityCommandBuffer =
+                    GetExistingSystem<PostManagedMonoBehaviourUpdateEntityCommandBufferSystem>().CreateCommandBuffer()
+            };
+        }
+
+        public class CreationBufferToken {
+            internal EntityCommandBuffer EntityCommandBuffer;
+
+            internal CreationBufferToken() { }
+        }
     }
 }
diff --git a/package.json b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "com.10101software.dots.hybridsimulation",
   "description": "A framework for using FixedUpdate in a simulation world which is linked to a GameObject-based presentation layer.",
-  "version": "0.6.4",
+  "version": "0.6.5",
   "unity": "2020.1",
   "displayName": "DOTS Hybrid Simulation Worlds",
   "dependencies": {