Added texture cache and sprite origins.

AlientAttack.MonoGame/Things/Bullets/LaserBulletLarge.cs

@@ -1,4 +1,5 @@
-using Microsoft.Xna.Framework;
+using AlienAttack.MonoGame.Textures;
+using Microsoft.Xna.Framework;
 using Microsoft.Xna.Framework.Graphics;
 using System;
 
@@ -11,17 +12,17 @@ public class LaserBulletLarge : Bullet
 
     public LaserBulletLarge(float x, float y, float xVel, float yVel, Sprite owner) : base(x, y, xVel, yVel, owner)
     {
+        Origin = new(Width/2, Height/2);
         BoundBox = new(0, 0, Width, Height);
         Damage = 3;
     }
 
     public override void Draw(SpriteDrawArgs args)
     {
-        Texture2D texture = args.Content.Load<Texture2D>(@$"Sprites\Laser_Large");
+        Texture2D texture = args.Textures.Get(TextureNames.Bullets.LaserLarge);
 
         float rotation = MathF.Atan2(YVelocity, XVelocity) + MathF.PI / 2f;
-        Vector2 origin = new(texture.Width / 2f, texture.Height / 2f);
         
-        args.SpriteBatch.Draw(texture, Position, null, DrawColor, rotation, origin, 1f, SpriteEffects.None, 1);
+        args.SpriteBatch.Draw(texture, Position, null, DrawColor, rotation, Origin, 1f, SpriteEffects.None, 1);
     }
 }