public static GameObject CreateAlienGrid(float start_x = 0.0f, float start_y = 0.0f)
{
// Create Composite objects
Composite pAlienGrid = new AlienGrid(Composite.CompositeName.AlienGrid, 20.0f, 0.0f);
pAlienGrid.SetCollisionObjectLineColor(1.0f, 1.0f, 0.0f);
pAlienGrid.ActivateSprite(GameStateManager.GetGame().GetStateSpriteBatchManager().Find(SpriteBatch.Name.Alien));
pAlienGrid.ActivateCollisionSprite(GameStateManager.GetGame().GetStateSpriteBatchManager().Find(SpriteBatch.Name.CollisionBox));
GameStateManager.GetGame().GetStateCompositeManager().Attach(pAlienGrid);
GameStateManager.GetGame().GetStateGameObjectManager().Attach(pAlienGrid);
Composite pCol;
for (int i = 0; i < 11; i++)
{
pCol = new AlienGridColumn(Composite.CompositeName.AlienCol1 + i);
GameStateManager.GetGame().GetStateGameObjectManager().Attach(pCol);
// Generate Aliens & Attach to Column
GenerateNewAlienGridColumn(pCol, (start_x + (60.0f * i)), start_y);
// Append Columns to AlienGrid
pAlienGrid.Add(pCol);
}
// Add Initial AlienGridMovement Event
AlienGridMovement pAlienGridMovement = new AlienGridMovement(pAlienGrid);
GameStateManager.GetGame().GetStateQueuedTimeEventManager().Enqueue(TimeEvent.Name.AlienGridMovement, pAlienGridMovement, GameStateManager.GetGame().GetStateLevelInitialAlienGridSpeed());
return(pAlienGrid);
}