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POXNA 4 - How to not spawn asteroids in same row?
 

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  1. POXNA 4 - How to not spawn asteroids in same row?
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    <p>I have asteroids spawning in my game with a timer on when they spawn and I want them to spawn one at a time. My problem is they all spawn in the same row, so as they increase speed going left there spawning on the asteroids that are already almost off the screen Here's what it looks like.</p> <p><a href="http://www.youtube.com/watch?v=9pKXZyzIpGs&amp;feature=youtu.be" rel="nofollow">http://www.youtube.com/watch?v=9pKXZyzIpGs&amp;feature=youtu.be</a></p> <p>Here's my update code.</p> <pre><code>namespace PixeBlastGame { public class GameUpdate { SpriteBatch spriteBatch; GameTime gameTime; Vector2 vPlayer = new Vector2(0, 720 / 2); Vector2 vAsteroid; Vector2 velocity; Random rand = new Random(); float spawnTimer; float spawnRate = 1; List&lt;Vector2&gt; Asteroids = new List&lt;Vector2&gt;(); public GameUpdate() { vAsteroid.Y = rand.Next(100, 680); vAsteroid.X = 1100; } public void Update(GameTime theTime) { gameTime = theTime; vPlayer.Y += velocity.Y; float elapsed = (float)gameTime.ElapsedGameTime.TotalSeconds; spawnTimer += elapsed; if (spawnTimer &gt;= spawnRate) { Asteroids.Add(new Vector2(1000 ,rand.Next(0, 720))); spawnTimer = 0; } if (Keyboard.GetState().IsKeyDown(Keys.Down)) { velocity.Y = 5; } else if (Keyboard.GetState().IsKeyDown(Keys.Up)) { velocity.Y = -5; } else { velocity.Y = 0; } if (vPlayer.Y &gt; 630 )//+ Game1.tPlayer.Height) vPlayer.Y = 630; if (vPlayer.Y &lt; -10) //+ Game1.tPlayer.Height) vPlayer.Y = -10; } public void Draw(SpriteBatch theBatch) { spriteBatch = theBatch; foreach (Vector2 asteroid in Asteroids) //Draw each astroid { DrawAsteroid(asteroid.X, asteroid.Y); } spriteBatch.Begin(); spriteBatch.Draw(Game1.tPlayer, vPlayer, Color.White); spriteBatch.End(); } public void DrawAsteroid(float x, float y) { vAsteroid.X -= 5; vAsteroid.Y = y; spriteBatch.Begin(); spriteBatch.Draw(Game1.tAsteroid, vAsteroid, Color.White); spriteBatch.End(); } } } </code></pre> <p>If you need more code provided to help me, post a comment.</p>
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    1. USfreemann098
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    1. COYou need to create a class for your Asteroids, since you need to store the velocity and position of each of your asteroids, get rid of vAsteroid.
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      1. POXNA 4 - How to not spawn asteroids in same row?
      1. USRobert J.
    2. COWhat robert said, I explained that in my answer for your last question. Because each asteroid will have its own velocity.
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      1. POXNA 4 - How to not spawn asteroids in same row?
      1. USCyral
    3. COThe problem is likely to be related to the "new Random".
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      1. POXNA 4 - How to not spawn asteroids in same row?
      1. USEric Lippert
 

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