GolemShader.cs

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using System;
using Microsoft.Xna.Framework;
using ReLogic.Peripherals.RGB;
 
namespace Terraria.GameContent.RGB;
 
public class GolemShader : ChromaShader
{
    private readonly Vector4 _glowColor;
 
    private readonly Vector4 _coreColor;
 
    private readonly Vector4 _backgroundColor;
 
    public GolemShader(Color glowColor, Color coreColor, Color backgroundColor)
    {
        _glowColor = glowColor.ToVector4();
        _coreColor = coreColor.ToVector4();
        _backgroundColor = backgroundColor.ToVector4();
    }
 
    [RgbProcessor(/*Could not decode attribute arguments.*/)]
    private void ProcessLowDetail(RgbDevice device, Fragment fragment, EffectDetailLevel quality, float time)
    {
        Vector4 value = Vector4.Lerp(_backgroundColor, _coreColor, Math.Max(0f, (float)Math.Sin(time * 0.5f)));
        for (int i = 0; i < fragment.Count; i++)
        {
            Vector2 canvasPositionOfIndex = fragment.GetCanvasPositionOfIndex(i);
            Vector4 vector = Vector4.Lerp(value, _glowColor, Math.Max(0f, (float)Math.Sin(canvasPositionOfIndex.X * 2f + time + 101f)));
            fragment.SetColor(i, vector);
        }
    }
 
    [RgbProcessor(/*Could not decode attribute arguments.*/)]
    private void ProcessHighDetail(RgbDevice device, Fragment fragment, EffectDetailLevel quality, float time)
    {
        float num = 0.5f + (float)Math.Sin(time * 3f) * 0.1f;
        Vector2 vector = new Vector2(1.6f, 0.5f);
        for (int i = 0; i < fragment.Count; i++)
        {
            Vector2 canvasPositionOfIndex = fragment.GetCanvasPositionOfIndex(i);
            Point gridPositionOfIndex = fragment.GetGridPositionOfIndex(i);
            Vector4 vector2 = _backgroundColor;
            float num2 = (NoiseHelper.GetStaticNoise(gridPositionOfIndex.Y) * 10f + time * 2f) % 10f - Math.Abs(canvasPositionOfIndex.X - vector.X);
            if (num2 > 0f)
            {
                float amount = Math.Max(0f, 1.2f - num2);
                if (num2 < 0.2f)
                {
                    amount = num2 * 5f;
                }
                vector2 = Vector4.Lerp(vector2, _glowColor, amount);
            }
            float num3 = (canvasPositionOfIndex - vector).Length();
            if (num3 < num)
            {
                float amount2 = 1f - MathHelper.Clamp((num3 - num + 0.1f) / 0.1f, 0f, 1f);
                vector2 = Vector4.Lerp(vector2, _coreColor, amount2);
            }
            fragment.SetColor(i, vector2);
        }
    }
}