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POColour spiral not working in XNA
 

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  1. POColour spiral not working in XNA
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    <p>I am making a simple process which will create a colour changing spiral so I can test a range of variables and learn some C#. However, though I can not find a problem in the code, when I debug it, I am returned with a blank blue screen. Can any one find the problem. Here is all the code containing the variables needed for the ball point:</p> <pre><code> Vector2 Tripos; List&lt;Color&gt; Tricol; List&lt;Vector2&gt; datatripos; List&lt;int&gt; count; Color currentcol; float Tri_angle; float Triscale; int Tri_speed; int screenwidth; int screenheight; int addtocount; Texture2D Ball; int colourchangespeed; protected override void LoadContent() { // Create a new SpriteBatch, which can be used to draw textures. Tripos = new Vector2(screenwidth / 2, screenheight / 2); Triscale = 1; Tri_angle = 1; Tri_speed = 1; colourchangespeed = 1; Ball = Content.Load&lt;Texture2D&gt;("ball"); currentcol = new Color(0, 0, 0); addtocount = 0; datatripos = new List&lt;Vector2&gt;(); Tricol = new List&lt;Color&gt;(); } </code></pre> <p>This is called by the update method:</p> <pre><code> private void Posgen() { Tripos.X += (float)Math.Sin(MathHelper.ToRadians(Tri_angle))*Tri_speed; Tripos.Y += (float)Math.Cos(MathHelper.ToRadians(Tri_angle))*Tri_speed; Tri_angle++; } private void colchanger() { currentcol.R += (byte)colourchangespeed; if (currentcol.R == 255) { currentcol.R = 0; currentcol.G += (byte)colourchangespeed; } if (currentcol.G == 255) { currentcol.G = 0; currentcol.B += (byte)colourchangespeed; } if (currentcol.B == 255) { currentcol.B = 0; } } private void dataadd() { addtocount++; Tricol.Add(currentcol); datatripos.Add(Tripos); count.Add(addtocount); } </code></pre> <p>Called by the draw method:</p> <pre><code> private void drawtri() { foreach (Vector2 data in datatripos) { spriteBatch.Draw(Ball, data, null, currentcol, 0, new Vector2(5, 5), Triscale, SpriteEffects.None, 0); } } </code></pre> <p>If you want the full code ask in advance. There are some variables I don't use but I intend to use for later so ignore these.</p> <p>Thanks in advance.</p> <p>Yours Mona.</p>
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