/// <summary>
/// Converts color given in string representation
/// (GDK color name, HTML triplet in #fff and #777777 forms)
/// to a Color2 structure
/// </summary>
/// <returns>Color2 structure.</returns>
/// <param name="colorString">Color string.</param>
private static Color2 FromColorString (string colorString)
{
// default / fallback
var color = new Color2 (0, 0, 0);
try
{
if (string.IsNullOrWhiteSpace (colorString))
throw new Exception ();
if (colorString.StartsWith ("#", StringComparison.InvariantCultureIgnoreCase))
{
int r, g, b;
if (colorString.Length == "#fff".Length)
{
r = Convert.ToInt32 (colorString.Substring (1, 1), 16);
g = Convert.ToInt32 (colorString.Substring (2, 1), 16);
b = Convert.ToInt32 (colorString.Substring (3, 1), 16);
color.R = (r * 16 + r) / 255.0;
color.G = (g * 16 + g) / 255.0;
color.B = (b * 16 + b) / 255.0;
}
else if (colorString.Length == "#f0f0f0".Length)
{
r = Convert.ToInt32 (colorString.Substring (1, 2), 16);
g = Convert.ToInt32 (colorString.Substring (3, 2), 16);
b = Convert.ToInt32 (colorString.Substring (5, 2), 16);
color.R = r / 255.0;
color.G = g / 255.0;
color.B = b / 255.0;
}
}
else // Gdk
{
Gdk.Color gdkColor = new Gdk.Color ();
if (Gdk.Color.Parse (colorString, ref gdkColor))
{
color.R = gdkColor.Red / 65535.0;
color.G = gdkColor.Green / 65535.0;
color.B = gdkColor.Blue / 65535.0;
}
}
}
catch
{
// set explicit in case some parse operations
// were successful, but others were not
color = new Color2 (0, 0, 0);
// TODO: Must write to log
Console.WriteLine ("Warning: Could not parse color, falling back to black");
}
return color;
}
/// <summary>
/// How this bubble eats another bubble.
/// </summary>
/// <param name="b">The blue component.</param>
public void EatBubble (Bubble b)
{
// area ratio
var Sd = b.S / this.S;
b.IsEaten = true;
// mixing colors (depending on area ratio)
this.Color = new Color (
(b.Color.R * Sd + this.Color.R * (1 - Sd)),
(b.Color.G * Sd + this.Color.G * (1 - Sd)),
(b.Color.B * Sd + this.Color.B * (1 - Sd)));
// increase radius (depending on area ratio)
this.R = Math.Sqrt ((this.S + b.S) / Math.PI);
// calculating speed (depending on area / "mass" ratio)
this.VX += b.VX * Sd;
this.VY += b.VY * Sd;
}
private void ModifyScene ()
{
var cinc = 0.01;
if (turn)
{
color1 = new Color (0, color1.G + cinc, color1.B - cinc, 0.5);
color2 = new Color (color2.R + cinc, color2.G - cinc, 0, 0.5);
color3 = new Color (color3.R - cinc, 0, color3.B + cinc, 0.5);
if (color1.G >= 1.0)
turn = false;
}
else
{
color1 = new Color (0, color1.G - cinc, color1.B + cinc, 0.5);
color2 = new Color (color2.R - cinc, color2.G + cinc, 0, 0.5);
color3 = new Color (color3.R + cinc, 0, color3.B - cinc, 0.5);
if (color1.B >= 1.0)
turn = true;
}
alpha += Math.PI / 100;
}
public Color2 PopColor ()
{
this.Color = colorStack.Pop ();
return this.Color;
}
public void PushColor (Color2 color2)
{
colorStack.Push (color2);
}