Added config for biomes

src/main/java/ru/betterend/util/MHelper.java

@@ -0,0 +1,51 @@
+package ru.betterend.util;
+
+import java.util.Random;
+
+public class MHelper {
+	public static final float PI2 = (float) (Math.PI * 2);
+	private static final int ALPHA = 255 << 24;
+	public static final Random RANDOM = new Random();
+
+	public static int color(int r, int g, int b) {
+		return ALPHA | (r << 16) | (g << 8) | b;
+	}
+
+	public static int randRange(int min, int max, Random random) {
+		return min + random.nextInt(max - min + 1);
+	}
+
+	public static float randRange(float min, float max, Random random) {
+		return min + random.nextFloat() * (max - min);
+	}
+
+	public static byte setBit(byte source, int pos, boolean value) {
+		return value ? setBitTrue(source, pos) : setBitFalse(source, pos);
+	}
+
+	public static byte setBitTrue(byte source, int pos) {
+		source |= 1 << pos;
+		return source;
+	}
+
+	public static byte setBitFalse(byte source, int pos) {
+		source &= ~(1 << pos);
+		return source;
+	}
+
+	public static boolean getBit(byte source, int pos) {
+		return ((source >> pos) & 1) == 1;
+	}
+
+	public static int floor(float x) {
+		return x < 0 ? (int) (x - 1) : (int) x;
+	}
+
+	public static float wrap(float x, float side) {
+		return x - floor(x / side) * side;
+	}
+
+	public static int floor(double x) {
+		return x < 0 ? (int) (x - 1) : (int) x;
+	}
+}