51 lines
1.1 KiB
C#
51 lines
1.1 KiB
C#
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using System.Collections.Generic;
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using Godot;
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namespace Rokojori
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{
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public static class GradientExtensions
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{
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public enum GradientRepeatMode
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{
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Clamp,
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Repeat,
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MirrorRepeat
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}
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public static Gradient Create( IEnumerable<Color> colors )
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{
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var g = new Gradient();
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g.Colors = Lists.FromAny( colors ).ToArray();
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var offsets = new List<float>();
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for ( int i = 0; i < g.Colors.Length; i++ )
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{
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offsets.Add( i / (float) ( g.Colors.Length - 1f ) );
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}
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g.Offsets = offsets.ToArray();
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return g;
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}
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public static Color SampleRepeated( this Gradient gradient, float t, GradientRepeatMode repeatMode )
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{
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var repeatedT = t;
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if ( GradientRepeatMode.Repeat == repeatMode )
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{
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repeatedT = MathX.Repeat( t, 1f );
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}
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else if ( GradientRepeatMode.MirrorRepeat == repeatMode )
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{
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repeatedT = MathX.Repeat( t, 2f );
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if ( repeatedT > 1f )
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{
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repeatedT = 2f - 1f;
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}
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}
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return gradient.Sample( repeatedT );
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}
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}
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}
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