-support for system priority

-fixed callers system pointer update
-fixed HashMap issue

source/ecs/manager.d

@@ -115,6 +115,7 @@ class EntityManager
         }
 
         system.m_system_pointer = cast(void*) Mallocator.instance.make!Sys;
+        system.m_priority = priority;
 
         system.m_components = Mallocator.instance.makeArray!uint(types.length - 1);
         mixin(genCompList());
@@ -268,7 +269,7 @@ class EntityManager
     {
         foreach(entity;&entities_infos.byValue)
         {
-            foreach(caller;entity.callers)
+            foreach(ref caller;entity.callers)
             {
                 caller.system = &systems[caller.system_id];
             }
@@ -302,7 +303,13 @@ class EntityManager
         {
             call_data.deltas = Mallocator.instance.makeArray(deltas); //Mallocator.instance.makeArray!ushort(system.m_components.length);
 
-            entity.callers.add(call_data);
+            uint index = 0;
+            for(;index<entity.callers.length;index++)
+            {
+                CallData* caller = &entity.callers[index];
+                if(caller.system.priority >= call_data.system.priority)break;
+            }
+            entity.callers.add(call_data,index);
         }
     }
 

source/ecs/vector.d

@@ -148,7 +148,8 @@ public:
 			extend(array.length * 2);
 		}
 		foreach_reverse (size_t i; pos .. used) {
-			swap(array[i + 1], array[i]);
+			//swap(array[i + 1], array[i]);
+			array[i+1] = array[i];
 		}
 		emplace(&array[pos], t);
 		used++;