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using UnityEngine;
namespace Pathfinding.Drawing {
/// <summary>
/// Collections of colors.
///
/// The easiest way to use this class is to import it with a "using" statement:
///
/// <code>
/// using Palette = Pathfinding.Drawing.Palette.Colorbrewer.Set1;
///
/// class PaletteTest : MonoBehaviour {
/// public void Update () {
/// Draw.Line(new Vector3(0, 0, 0), new Vector3(1, 1, 1), Palette.Orange);
/// }
/// }
/// </code>
///
/// Note: This class has relatively few color collections at the moment. More will be added in the future.
/// </summary>
public static class Palette {
/// <summary>Pure colors</summary>
public static class Pure {
public static readonly Color Yellow = new Color(1, 1, 0, 1);
public static readonly Color Clear = new Color(0, 0, 0, 0);
public static readonly Color Grey = new Color(0.5f, 0.5f, 0.5f, 1);
public static readonly Color Magenta = new Color(1, 0, 1, 1);
public static readonly Color Cyan = new Color(0, 1, 1, 1);
public static readonly Color Red = new Color(1, 0, 0, 1);
public static readonly Color Black = new Color(0, 0, 0, 1);
public static readonly Color White = new Color(1, 1, 1, 1);
public static readonly Color Blue = new Color(0, 0, 1, 1);
public static readonly Color Green = new Color(0, 1, 0, 1);
}
/// <summary>
/// Colorbrewer colors.
/// See: http://colorbrewer2.org/
/// </summary>
public static class Colorbrewer {
/// <summary>Set 1 - Qualitative</summary>
public static class Set1 {
public static readonly Color Red = new Color(228/255f, 26/255f, 28/255f, 1);
public static readonly Color Blue = new Color(55/255f, 126/255f, 184/255f, 1);
public static readonly Color Green = new Color(77/255f, 175/255f, 74/255f, 1);
public static readonly Color Purple = new Color(152/255f, 78/255f, 163/255f, 1);
public static readonly Color Orange = new Color(255/255f, 127/255f, 0/255f, 1);
public static readonly Color Yellow = new Color(255/255f, 255/255f, 51/255f, 1);
public static readonly Color Brown = new Color(166/255f, 86/255f, 40/255f, 1);
public static readonly Color Pink = new Color(247/255f, 129/255f, 191/255f, 1);
public static readonly Color Grey = new Color(153/255f, 153/255f, 153/255f, 1);
}
/// <summary>Blues - Sequential</summary>
public static class Blues {
static readonly Color[] Colors = new Color[] {
new Color(43/255f, 140/255f, 190/255f),
new Color(166/255f, 189/255f, 219/255f),
new Color(43/255f, 140/255f, 190/255f),
new Color(236/255f, 231/255f, 242/255f),
new Color(166/255f, 189/255f, 219/255f),
new Color(43/255f, 140/255f, 190/255f),
new Color(241/255f, 238/255f, 246/255f),
new Color(189/255f, 201/255f, 225/255f),
new Color(116/255f, 169/255f, 207/255f),
new Color(5/255f, 112/255f, 176/255f),
new Color(241/255f, 238/255f, 246/255f),
new Color(189/255f, 201/255f, 225/255f),
new Color(116/255f, 169/255f, 207/255f),
new Color(43/255f, 140/255f, 190/255f),
new Color(4/255f, 90/255f, 141/255f),
new Color(241/255f, 238/255f, 246/255f),
new Color(208/255f, 209/255f, 230/255f),
new Color(166/255f, 189/255f, 219/255f),
new Color(116/255f, 169/255f, 207/255f),
new Color(43/255f, 140/255f, 190/255f),
new Color(4/255f, 90/255f, 141/255f),
new Color(241/255f, 238/255f, 246/255f),
new Color(208/255f, 209/255f, 230/255f),
new Color(166/255f, 189/255f, 219/255f),
new Color(116/255f, 169/255f, 207/255f),
new Color(54/255f, 144/255f, 192/255f),
new Color(5/255f, 112/255f, 176/255f),
new Color(3/255f, 78/255f, 123/255f),
new Color(255/255f, 247/255f, 251/255f),
new Color(236/255f, 231/255f, 242/255f),
new Color(208/255f, 209/255f, 230/255f),
new Color(166/255f, 189/255f, 219/255f),
new Color(116/255f, 169/255f, 207/255f),
new Color(54/255f, 144/255f, 192/255f),
new Color(5/255f, 112/255f, 176/255f),
new Color(3/255f, 78/255f, 123/255f),
new Color(255/255f, 247/255f, 251/255f),
new Color(236/255f, 231/255f, 242/255f),
new Color(208/255f, 209/255f, 230/255f),
new Color(166/255f, 189/255f, 219/255f),
new Color(116/255f, 169/255f, 207/255f),
new Color(54/255f, 144/255f, 192/255f),
new Color(5/255f, 112/255f, 176/255f),
new Color(4/255f, 90/255f, 141/255f),
new Color(2/255f, 56/255f, 88/255f),
};
/// <summary>Returns a color for the specified class.</summary>
/// <param name="classes">Number of classes. Must be between 1 and 9.</param>
/// <param name="index">Index of the color class. Must be between 0 and classes-1.</param>
public static Color GetColor (int classes, int index) {
if (index < 0 || index >= classes) throw new System.ArgumentOutOfRangeException("index", "Index must be less than classes and at least 0");
if (classes <= 0 || classes > 9) throw new System.ArgumentOutOfRangeException("classes", "Only up to 9 classes are supported");
return Colors[(classes - 1)*classes/2 + index];
}
}
}
}
}
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