src/game/java/com/mojang/math/Constants.java

package com.mojang.math;

public class Constants {
    public static final float PI = (float) Math.PI;
    public static final float RAD_TO_DEG = 180.0F / (float)Math.PI;
    public static final float DEG_TO_RAD = (float) (Math.PI / 180.0);
    public static final float EPSILON = 1.0E-6F;
}