Common update:

-added multiple new function to allocate template and add entity
-updated README.md (complete initial version)
-empty components now don't take memory
-fixedd small bug with TestRunner
-added many new tests (HashMap, Vector, EntityMeta, ...)
-added default hashing function to HashMap
-fixed critical bug with adding entities
-fixed small bug with adding entity with remplacement components
-added asserts into code to better bug detection
-small performance improvement for events
-added ComponentRef structure which contain data pointer and componentID
-remove EntityID from Event structure
-now events are handled before removing entiteis
-fixed GDC compilation
-fixed rendering of rotated sprites
-added weapons as separate entities to space ship and others
-added Tower enemy to SpaceInvaders demo
-added Boss to SpaceInvaders demo (boss has four tower attached to it)
-Boss towers shoot multiple bullets upon death
-fixed critical bug with demos switching
-fixed critical bug related to adding/removing entities form inside onAdd/onRemove entity callback
-added animation support
-added particles sypport and particles for firing and explostions, and more
-multithreaded rendering now has same rendering order as singlethreaded
-application automaticallu detect host CPU threads count
-added upgrades to SPaceInvaders demo
-fixed texture memory freeing
-improved documentation
-improved multithreaded performance
-improve shader code
-fixed registration issue
-some additional performance improvements
-added depth and colors to rendering parameters
-jobs now has names corresponding to their systems
-change execute() -> willExecute()
-added EntityMeta structure to speedup getting fetching components form entity
-improved multithreading rendering
-added possibility tio change number of threads runtime
-added bullets collision detection in SpaceInvaders demo
-some CI changes
-added VBO batch rendering (current default, no render mode switch yet)
-fixed camera positioning calculation
-fixed buffer issue with WebGL
-added viewport scalling (at least 300 pixels height). Pixels are scalled if screen is bigger.
-center demos gameplay area
-added fullpage html template for Emscripten build
-added many new sprites to atlas
-fixed critical bug with CPU usage in multithreaded mode
-snake render tile coresponding to body part
-snake is destroyed after collision and emit some particles
-added some functionality to vectors
-fixed documentation issue in Manager.d
-more minor code changes and cleanup

tests/vector.d

@@ -1,7 +1,16 @@
 module tests.vector;
 
-import ecs.simple_vector;
-//import ecs.vector;
+import bubel.ecs.simple_vector;
+import bubel.ecs.vector;
+
+version(GNU)
+{
+	pragma(inline, true) T[n] staticArray(T, size_t n)(auto ref T[n] a)
+	{
+		return a;
+	}
+}
+else import std.array : staticArray;
 
 @("simple-vector")
 unittest
@@ -33,3 +42,38 @@ unittest
     assert(vector2[1023] == 'a');
     assert(vector2[1024] == 'b');
 }
+
+@("Vector")
+unittest
+{
+    struct G
+    {
+        int a;
+    }
+
+    Vector!G vector;
+    assert(vector.empty());
+    vector.add(G(1));
+    assert(!vector.empty());
+    vector.clear();
+    assert(vector.empty());
+    vector.add(G(1));
+    assert(!vector.empty());
+    vector.reset();
+    assert(vector.empty());
+
+    vector.add(G(1));
+    vector.add([G(2),G(5)].staticArray);
+    assert(vector.length == 3);
+    assert(vector.capacity == 1);
+    
+    Vector!G vector2;
+    vector2.add([G(1),G(2),G(5)].staticArray);
+    assert(vector == vector2);
+    vector2.remove(1);
+    assert(vector != vector2);
+    assert(vector2.length == 2);
+    assert(vector2[1] == G(5));
+    vector2.add(G(2),1);
+    assert(vector == vector2);
+}