UndergroundCorruptionShader.cs

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using System;
using Microsoft.Xna.Framework;
using ReLogic.Peripherals.RGB;
 
namespace Terraria.GameContent.RGB;
 
public class UndergroundCorruptionShader : ChromaShader
{
    private readonly Vector4 _corruptionColor = new Vector4(Color.Purple.ToVector3() * 0.2f, 1f);
 
    private readonly Vector4 _flameColor = Color.Green.ToVector4();
 
    private readonly Vector4 _flameTipColor = Color.Yellow.ToVector4();
 
    [RgbProcessor(/*Could not decode attribute arguments.*/)]
    private void ProcessLowDetail(RgbDevice device, Fragment fragment, EffectDetailLevel quality, float time)
    {
        Vector4 value = Vector4.Lerp(_flameColor, _flameTipColor, 0.25f);
        for (int i = 0; i < fragment.Count; i++)
        {
            Vector2 canvasPositionOfIndex = fragment.GetCanvasPositionOfIndex(i);
            Vector4 vector = Vector4.Lerp(_corruptionColor, value, (float)Math.Sin(time + canvasPositionOfIndex.X) * 0.5f + 0.5f);
            fragment.SetColor(i, vector);
        }
    }
 
    [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++)
        {
            fragment.GetGridPositionOfIndex(i);
            Vector2 canvasPositionOfIndex = fragment.GetCanvasPositionOfIndex(i);
            float dynamicNoise = NoiseHelper.GetDynamicNoise(canvasPositionOfIndex * 0.3f + new Vector2(12.5f, time * 0.05f), time * 0.1f);
            dynamicNoise = Math.Max(0f, 1f - dynamicNoise * dynamicNoise * 4f * (1.2f - canvasPositionOfIndex.Y)) * canvasPositionOfIndex.Y;
            dynamicNoise = MathHelper.Clamp(dynamicNoise, 0f, 1f);
            Vector4 value = Vector4.Lerp(_flameColor, _flameTipColor, dynamicNoise);
            Vector4 vector = Vector4.Lerp(_corruptionColor, value, dynamicNoise);
            fragment.SetColor(i, vector);
        }
    }
}