added slime chunk data

src/main/java/kaptainwutax/seedcracker/cracker/SlimeChunkData.java

@@ -0,0 +1,22 @@
+package kaptainwutax.seedcracker.cracker;
+
+import kaptainwutax.seedcracker.util.Rand;
+import kaptainwutax.seedcracker.util.Seeds;
+import net.minecraft.util.math.ChunkPos;
+
+public class SlimeChunkData {
+
+	protected ChunkPos chunkPos;
+	protected boolean isSlimeChunk;
+
+	public SlimeChunkData(ChunkPos chunkPos, boolean isSlimeChunk) {
+		this.chunkPos = chunkPos;
+		this.isSlimeChunk = isSlimeChunk;
+	}
+
+	public boolean test(long seed, Rand rand) {
+		Seeds.setSlimeChunkSeed(rand, seed, this.chunkPos.x, this.chunkPos.z, 987234911L);
+		return (rand.nextInt(10) == 0) == this.isSlimeChunk;
+	}
+
+}

src/main/java/kaptainwutax/seedcracker/util/Seeds.java

@@ -26,4 +26,10 @@ public class Seeds {
 		return seed;
 	}
 
+	public static long setSlimeChunkSeed(Rand rand, long worldSeed, int chunkX, int chunkZ, long salt) {
+		long seed = worldSeed + (long)(chunkX * chunkX * 4987142) + (long)(chunkX * 5947611) + (long)(chunkZ * chunkZ) * 4392871L + (long)(chunkZ * 389711) ^ salt;
+		rand.setSeed(seed, true);
+		return seed;
+	}
+
 }