Added texture cache and sprite origins.

AlientAttack.MonoGame/Things/Items/Item.cs

@@ -22,6 +22,8 @@ public abstract class Item : MoveableSprite
     public Item(int x, int y) : base(x, y)
     {
         YVelocity = .5f;
+
+        Origin = new(Width / 2, Height / 2);
         BoundBox = new Rectangle(0, 0, Width, Height);
 
         _anchor = new Vector2(x, y);
@@ -34,7 +36,7 @@ public abstract class Item : MoveableSprite
 
         Texture2D texture = args.Content.Load<Texture2D>(TextureName);
 
-        args.SpriteBatch.Draw(texture, Position, null, DrawColor, 0, new Vector2(0, 0), _scale, SpriteEffects.None, 1);
+        args.SpriteBatch.Draw(texture, Position, null, DrawColor, 0, Origin, _scale, SpriteEffects.None, 1);
     }
 
     public override void Update(SpriteUpdateContext context)