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POWhat is the best method in XNA to have the player paint smoothly on the screen?
 

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  1. POWhat is the best method in XNA to have the player paint smoothly on the screen?
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    <p>I'm developing a wp7 game where the player draws lines in the program and a ball bounces off of them. I'm using XNA and farseer physics. What is the best method for a user to draw a line, and then for the program to take it and turn it in to a physics object, or at least a list of vector2s? I've tried creating a list of TouchLocations, but it ends up spotty if the user does not draw very slow, like the picture I've attached. Any suggestions? Thanks <a href="http://img829.imageshack.us/img829/3985/capturehbn.png" rel="nofollow">http://img829.imageshack.us/img829/3985/capturehbn.png</a></p> <p>Here's some code: I'm using the gamestatemanagement sample, and this is in the HandleInput method</p> <pre><code>foreach (TouchLocation t in input.TouchState) { pathManager.Update(gameTime, t.Position); } </code></pre> <p>The pathManager class manages a collection of path classes, which are drawable physics objects. Here is pathManager.Update</p> <pre><code>public void Update(GameTime gameTime, Vector2 touchPosition) { paths.Add(new Path(world,texture, new Vector2(5,5) ,0.1f)); paths[paths.Count-1].Position = touchPosition; } </code></pre> <p>This is just what I'm doing now and I'm willing to throw it out for anything. You'd think that having a 5x5 rectangle for each touch location would kill the performance, but using farseer I didn't see any drops, even with a mostly full screen. However, this system doesn't create a smooth line at all if the line is drawn fast.</p> <p>I doubt this helps any, but here is the Path constructor.</p> <pre><code>public Path(World world, Texture2D texture, Vector2 size, float mass) { this.Size = size; this.texture = texture; body = BodyFactory.CreateRectangle(world, size.X * pixelToUnit, size.Y * pixelToUnit, 1); body.BodyType = BodyType.Static; body.Restitution = 1f; body.Friction = 0; body.Friction = 10; } </code></pre>
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    1. USdda
    1. USIan Wilson
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    2. VO
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      1. POWhat is the best method in XNA to have the player paint smoothly on the screen?
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    3. VO
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    1. COCould you paste your relevant code in?
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      1. POWhat is the best method in XNA to have the player paint smoothly on the screen?
      1. USForceMagic
    2. COjust posted some
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      1. POWhat is the best method in XNA to have the player paint smoothly on the screen?
      1. USIan Wilson
    3. COdo you have to have more than 2 points of a line?
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      1. POWhat is the best method in XNA to have the player paint smoothly on the screen?
      1. USVlad Spreys
 

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