Fixed Loot tables acting like a cucumber in the sun

- Fixed loot chests containing the exact same loot
- Fixed chests having nothing if a roll fails
- Fixed rolls always being done in the same order
- Added method to BlockPosition to get a unique long from 3 integers (x, y z)

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

@@ -11,6 +11,15 @@ public class BlockPosition
 	private int y;
 	private int z;
 
+	//Magic numbers
+	private static final int m1 = 1 + MathHelper.f(MathHelper.c(30000000));
+	private static final int m2 = 64 - (m1 * 2);
+	private static final long m3 = m1 + m2;
+	private static final long m4 = (1L << m1) - 1L;
+	private static final long m5 = (1L << m2) - 1L;
+	private static final long m6 = (1L << m1) - 1L;
+
+
 	public BlockPosition(int x, int y, int z)
 	{
 		this.x = x;
@@ -59,4 +68,16 @@ public class BlockPosition
 	{
 		return this.x == x && this.y == y && this.z == z;
 	}
+
+	public long asLong() {
+		return toLong(getX(), getY(), getZ());
+	}
+
+	public static long toLong(int x, int y, int z) {
+		long var3 = 0L;
+		var3 |= (x & m4) << m3;
+		var3 |= (y & m5) << 0L;
+		var3 |= (z & m6) << m2;
+		return var3;
+	}
 }

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

@@ -132,7 +132,7 @@ public class RNG extends Random
 
 	public int i(int lowerBound, int upperBound)
 	{
-		return (int) Math.round(d(lowerBound, upperBound));
+		return (int) Math.floor(d(lowerBound, upperBound));
 	}
 
 	public int i(int upperBound)
@@ -192,4 +192,8 @@ public class RNG extends Random
 
 		return pieces.get(nextInt(pieces.size()));
     }
+
+    public long getSeed() {
+		return sx;
+	}
 }