Replace EnumDifficulty with vanilla Difficulty enum

src/main/java/exopandora/worldhandler/builder/impl/BuilderDifficulty.java

@@ -3,6 +3,7 @@ package exopandora.worldhandler.builder.impl;
 import exopandora.worldhandler.builder.CommandBuilder;
 import exopandora.worldhandler.builder.Syntax;
 import exopandora.worldhandler.builder.types.Type;
+import net.minecraft.world.Difficulty;
 import net.minecraftforge.api.distmarker.Dist;
 import net.minecraftforge.api.distmarker.OnlyIn;
 
@@ -14,16 +15,16 @@ public class BuilderDifficulty extends CommandBuilder
 		
 	}
 	
-	public BuilderDifficulty(EnumDifficulty difficulty)
+	public BuilderDifficulty(Difficulty difficulty)
 	{
 		this.setDifficulty(difficulty);
 	}
 	
-	public void setDifficulty(EnumDifficulty difficulty)
+	public void setDifficulty(Difficulty difficulty)
 	{
 		if(difficulty != null)
 		{
-			this.setNode(0, difficulty.toString());
+			this.setNode(0, difficulty.getTranslationKey());
 		}
 	}
 	
@@ -42,20 +43,4 @@ public class BuilderDifficulty extends CommandBuilder
 		
 		return syntax;
 	}
-	
-	@Deprecated
-	@OnlyIn(Dist.CLIENT)
-	public static enum EnumDifficulty
-	{
-		PEACEFUL,
-		EASY,
-		NORMAL,
-		HARD;
-		
-		@Override
-		public String toString()
-		{
-			return this.name().toLowerCase();
-		}
-	}
 }