IceShader.cs

Go to the documentation of this file.

using System;
using Microsoft.Xna.Framework;
using ReLogic.Peripherals.RGB;
 
namespace Terraria.GameContent.RGB;
 
public class IceShader : ChromaShader
{
    private readonly Vector4 _baseColor;
 
    private readonly Vector4 _iceColor;
 
    private readonly Vector4 _shineColor = new Vector4(1f, 1f, 0.7f, 1f);
 
    public IceShader(Color baseColor, Color iceColor)
    {
        _baseColor = baseColor.ToVector4();
        _iceColor = iceColor.ToVector4();
    }
 
    [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++)
        {
            Vector2 canvasPositionOfIndex = fragment.GetCanvasPositionOfIndex(i);
            float dynamicNoise = NoiseHelper.GetDynamicNoise(new Vector2((canvasPositionOfIndex.X - canvasPositionOfIndex.Y) * 0.2f, 0f), time / 5f);
            dynamicNoise = Math.Max(0f, 1f - dynamicNoise * 1.5f);
            float dynamicNoise2 = NoiseHelper.GetDynamicNoise(new Vector2((canvasPositionOfIndex.X - canvasPositionOfIndex.Y) * 0.3f, 0.3f), time / 20f);
            dynamicNoise2 = Math.Max(0f, 1f - dynamicNoise2 * 5f);
            Vector4 value = Vector4.Lerp(_baseColor, _iceColor, dynamicNoise);
            value = Vector4.Lerp(value, _shineColor, dynamicNoise2);
            fragment.SetColor(i, value);
        }
    }
}