VineShader.cs

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using Microsoft.Xna.Framework;
using ReLogic.Peripherals.RGB;
 
namespace Terraria.GameContent.RGB;
 
public class VineShader : ChromaShader
{
    private readonly Vector4 _backgroundColor = new Color(46, 17, 6).ToVector4();
 
    private readonly Vector4 _vineColor = Color.Green.ToVector4();
 
    [RgbProcessor(/*Could not decode attribute arguments.*/)]
    private void ProcessLowDetail(RgbDevice device, Fragment fragment, EffectDetailLevel quality, float time)
    {
        for (int i = 0; i < fragment.Count; i++)
        {
            fragment.GetCanvasPositionOfIndex(i);
            fragment.SetColor(i, _backgroundColor);
        }
    }
 
    [RgbProcessor(/*Could not decode attribute arguments.*/)]
    private void ProcessHighDetail(RgbDevice device, Fragment fragment, EffectDetailLevel quality, float time)
    {
        for (int i = 0; i < fragment.Count; i++)
        {
            Point gridPositionOfIndex = fragment.GetGridPositionOfIndex(i);
            Vector2 canvasPositionOfIndex = fragment.GetCanvasPositionOfIndex(i);
            float staticNoise = NoiseHelper.GetStaticNoise(gridPositionOfIndex.X);
            staticNoise = (staticNoise * 10f + time * 0.4f) % 10f;
            float num = 1f;
            if (staticNoise > 1f)
            {
                num = 1f - MathHelper.Clamp((staticNoise - 0.4f - 1f) / 0.4f, 0f, 1f);
                staticNoise = 1f;
            }
            float num2 = staticNoise - canvasPositionOfIndex.Y / 1f;
            Vector4 vector = _backgroundColor;
            if (num2 > 0f)
            {
                float num3 = 1f;
                if (num2 < 0.2f)
                {
                    num3 = num2 / 0.2f;
                }
                vector = Vector4.Lerp(_backgroundColor, _vineColor, num3 * num);
            }
            fragment.SetColor(i, vector);
        }
    }
}