HallowSurfaceShader.cs

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using System;
using Microsoft.Xna.Framework;
using ReLogic.Peripherals.RGB;
 
namespace Terraria.GameContent.RGB;
 
public class HallowSurfaceShader : ChromaShader
{
    private readonly Vector4 _skyColor = new Color(150, 220, 220).ToVector4();
 
    private readonly Vector4 _groundColor = new Vector4(1f, 0.2f, 0.25f, 1f);
 
    private readonly Vector4 _pinkFlowerColor = new Vector4(1f, 0.2f, 0.25f, 1f);
 
    private readonly Vector4 _yellowFlowerColor = new Vector4(1f, 1f, 0f, 1f);
 
    private Vector4 _lightColor;
 
    public override void Update(float elapsedTime)
    {
        _lightColor = Main.ColorOfTheSkies.ToVector4() * 0.75f + Vector4.One * 0.25f;
    }
 
    [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++)
        {
            Vector2 canvasPositionOfIndex = fragment.GetCanvasPositionOfIndex(i);
            Vector4 vector = Vector4.Lerp(_skyColor, _groundColor, (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)
    {
        Vector4 vector = _skyColor * _lightColor;
        for (int i = 0; i < fragment.Count; i++)
        {
            Vector2 canvasPositionOfIndex = fragment.GetCanvasPositionOfIndex(i);
            Point gridPositionOfIndex = fragment.GetGridPositionOfIndex(i);
            float dynamicNoise = NoiseHelper.GetDynamicNoise(gridPositionOfIndex.X, gridPositionOfIndex.Y, time / 20f);
            dynamicNoise = Math.Max(0f, 1f - dynamicNoise * 5f);
            Vector4 value = vector;
            value = (((gridPositionOfIndex.X * 100 + gridPositionOfIndex.Y) % 2 != 0) ? Vector4.Lerp(value, _pinkFlowerColor, dynamicNoise) : Vector4.Lerp(value, _yellowFlowerColor, dynamicNoise));
            float num = (float)Math.Sin(canvasPositionOfIndex.X) * 0.3f + 0.7f;
            if (canvasPositionOfIndex.Y > num)
            {
                value = _groundColor;
            }
            fragment.SetColor(i, value);
        }
    }
}