Fix enemy ship Cobalt

ScrollingShooter/ScrollingShooter/Enemies/Cobalt.cs

@@ -1,6 +1,7 @@
 using Microsoft.Xna.Framework;
 using Microsoft.Xna.Framework.Graphics;
 using Microsoft.Xna.Framework.Content;
+using System;
 
 namespace ScrollingShooter
 {
@@ -14,9 +15,10 @@ public class Cobalt : Enemy
         Texture2D spritesheet;
         Vector2 position;
         Rectangle spriteBounds;
+        float delay;
 
         /// <summary>
-        /// The bounding rectangle of the Dart
+        /// The bounding rectangle of the Cobalt
         /// </summary>
         public override Rectangle Bounds
         {
@@ -50,26 +52,35 @@ public override void Update(float elapsedTime)
             // Sense the player's position
             PlayerShip player = ScrollingShooterGame.Game.player;
             Vector2 playerPosition = new Vector2(player.Bounds.Center.X, player.Bounds.Center.Y);
+            delay += elapsedTime;
 
             // Get a vector from our position to the player's position
             Vector2 toPlayer = playerPosition - this.position;
 
             //Sense the player from longer away but move slower.
-            if (toPlayer.LengthSquared() < 80000)
+            if (toPlayer.LengthSquared() < 160000)
             {
+                if (toPlayer.LengthSquared() < 10000)
+                {
+                    if (delay > .5f)
+                    {
+                        //Player is close fire weapons
+                        Vector2 travel = position;
+                        travel.X += Bounds.Width / 2;
+                        travel.Y += Bounds.Height / 2;
+                        ScrollingShooterGame.GameObjectManager.CreateProjectile(ProjectileType.CobaltBomb, travel);
+                        delay = 0;
+                    }
+                }
                 // We sense the player's ship!                  
                 // Get a normalized steering vector
                 toPlayer.Normalize();
 
                 // Steer towards them!
                 this.position += toPlayer * elapsedTime * 50;
+
             }
-            if (toPlayer.LengthSquared() < 10000)
-            {
-                //Player is close fire weapons
-                //Thinking of some type of pulse wave from the ship
-
-            }
+
         }
 
         /// <summary>
@@ -79,8 +90,44 @@ public override void Update(float elapsedTime)
         /// <param name="spriteBatch">An already initialized SpriteBatch, ready for Draw() commands</param>
         public override void Draw(float elapsedTime, SpriteBatch spriteBatch)
         {
-            spriteBatch.Draw(spritesheet, Bounds, spriteBounds, Color.White);
+            PlayerShip player = ScrollingShooterGame.Game.player;
+            Vector2 playerPosition = new Vector2(player.Bounds.Center.X, player.Bounds.Center.Y);
+            Vector2 toPlayer = playerPosition - this.position;
+            double angle = (2 * Math.PI) - Math.Atan2(toPlayer.X, toPlayer.Y);
+            if (toPlayer.LengthSquared() < 90000)
+            {
+                spriteBatch.Draw(spritesheet, Bounds, spriteBounds, Color.White, (float)angle, new Vector2(Bounds.Width / 2, Bounds.Height / 2), SpriteEffects.None, 1f);
+            }
+            else
+                spriteBatch.Draw(spritesheet, Bounds, spriteBounds, Color.White);
         }
 
     }
+    public class CobaltBomb : Projectile
+    {
+        /// <summary>
+        /// Creates a new blimp bullet
+        /// </summary>
+        /// <param name="content">A ContentManager to load content from</param>
+        /// <param name="position">A position on the screen</param>
+        public CobaltBomb(uint id, ContentManager content, Vector2 position)
+            : base(id)
+        {
+            this.spriteSheet = content.Load<Texture2D>("Spritesheets/newsh(.shp.000000");
+
+            this.spriteBounds = new Rectangle(48, 197, 13, 11);
+
+            this.position = position;
+
+            // Sense the player's position
+            PlayerShip player = ScrollingShooterGame.Game.player;
+            Vector2 playerPosition = new Vector2(player.Bounds.Center.X, player.Bounds.Center.Y);
+
+            // Get a vector from our position to the player's position
+            Vector2 toPlayer = playerPosition - this.position;
+
+            velocity = toPlayer;
+
+        }
+    }
 }

ScrollingShooter/ScrollingShooter/GameObjects/GameObjectManager.cs

@@ -385,6 +385,10 @@ public Projectile CreateProjectile(ProjectileType projectileType, Vector2 positi
                     projectile = new blueBeam(id, content, position);
                     break;
 
+                case ProjectileType.CobaltBomb:
+                    projectile = new CobaltBomb(id, content, position);
+                    break;
+
                     //This method doesn't fit the trishield very well, so this code is a bit poor in quality.
                 case ProjectileType.TrishieldBall:
                     for (int i = 0; i < 2; i++)

ScrollingShooter/ScrollingShooter/Projectiles/Projectile.cs

@@ -37,6 +37,7 @@ public enum ProjectileType
         GenericEnemyBullet = 109,
         DroneLaser = 110,
         RGSabot = 111,
+        CobaltBomb=112,
     }
 
     /// <summary>

ScrollingShooter/ScrollingShooter/ScrollingShooterGame.cs

@@ -87,7 +87,7 @@ protected override void LoadContent()
             }
             tilemap.Scrolling = true;
 
-            GameObjectManager.CreateEnemy(EnemyType.Dart, new Vector2(200, 200));
+            GameObjectManager.CreateEnemy(EnemyType.Cobalt, new Vector2(200, 200));
         }
 
         /// <summary>