BoatAttack/Packages/com.unity.shadergraph/Editor/Data/Nodes/Math/Wave/TriangleWaveNode.cs

using System.Reflection;

namespace UnityEditor.ShaderGraph
{
    [Title("Math", "Wave", "Triangle Wave")]
    class TriangleWaveNode : CodeFunctionNode
    {
        public TriangleWaveNode()
        {
            name = "Triangle Wave";
        }


        protected override MethodInfo GetFunctionToConvert()
        {
            return GetType().GetMethod("TriangleWave", BindingFlags.Static | BindingFlags.NonPublic);
        }

        static string TriangleWave(
            [Slot(0, Binding.None)] DynamicDimensionVector In,
            [Slot(1, Binding.None)] out DynamicDimensionVector Out)
        {
            return
                @"
{
    Out = 2.0 * abs( 2 * (In - floor(0.5 + In)) ) - 1.0;
}
";
        }
    }
}