Biome Rarity

src/main/java/com/volmit/iris/util/BiomeRarityCellGenerator.java

@@ -0,0 +1,65 @@
+package com.volmit.iris.util;
+
+import com.volmit.iris.object.IrisBiome;
+
+public class BiomeRarityCellGenerator extends CellGenerator
+{
+	public BiomeRarityCellGenerator(RNG rng)
+	{
+		super(rng);
+	}
+
+	public IrisBiome get(double x, double z, KList<IrisBiome> b)
+	{
+		if(b.size() == 0)
+		{
+			return null;
+		}
+
+		if(b.size() == 1)
+		{
+			return b.get(0);
+		}
+
+		KList<IrisBiome> rarityMapped = new KList<>();
+		boolean o = false;
+		int max = 1;
+		for(IrisBiome i : b)
+		{
+			if(i.getRarity() > max)
+			{
+				max = i.getRarity();
+			}
+		}
+
+		max++;
+
+		for(IrisBiome i : b)
+		{
+			for(int j = 0; j < max - i.getRarity(); j++)
+			{
+				if(o = !o)
+				{
+					rarityMapped.add(i);
+				}
+
+				else
+				{
+					rarityMapped.add(0, i);
+				}
+			}
+		}
+
+		if(rarityMapped.size() == 1)
+		{
+			return rarityMapped.get(0);
+		}
+
+		if(rarityMapped.isEmpty())
+		{
+			throw new RuntimeException("BAD RARITY MAP! RELATED TO: " + b.toString(", or possibly "));
+		}
+
+		return rarityMapped.get(getIndex(x, z, rarityMapped.size()));
+	}
+}