ForgottenWawiTech/ForgottenWawiTechSystem.cs

using Terraria.ModLoader;
using Terraria.ModLoader.IO;

namespace ForgottenWawiTech
{
    public class ForgottenWawiTechSystem : ModSystem
    {
        public static bool hasObtainedRGBass = false;

        public override void OnWorldLoad()
        {
            hasObtainedRGBass = false;
        }

        public override void OnWorldUnload()
        {
            hasObtainedRGBass = false;
        }

        public override void SaveWorldData(TagCompound tag)
        {
            tag["hasObtainedRGBass"] = hasObtainedRGBass;
        }

        public override void LoadWorldData(TagCompound tag)
        {
            hasObtainedRGBass = tag.GetBool("hasObtainedRGBass");
        }
    }
}