org.bukkit.util.NumberConversions Maven / Gradle / Ivy

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package org.bukkit.util;

/**
 * Utils for casting number types to other number types
 */
public final class NumberConversions {
  private NumberConversions() {
  }

  public static int floor(double num) {
    final int floor = (int) num;
    return floor == num ? floor : floor - (int) (Double.doubleToRawLongBits(num) >>> 63);
  }

  public static int ceil(final double num) {
    final int floor = (int) num;
    return floor == num ? floor : floor + (int) (~Double.doubleToRawLongBits(num) >>> 63);
  }

  public static int round(double num) {
    return floor(num + 0.5d);
  }

  public static double square(double num) {
    return num * num;
  }

  public static int toInt(Object object) {
    if (object instanceof Number) {
      return ((Number) object).intValue();
    }

    try {
      return Integer.valueOf(object.toString());
    } catch (NumberFormatException e) {
    } catch (NullPointerException e) {
    }
    return 0;
  }

  public static float toFloat(Object object) {
    if (object instanceof Number) {
      return ((Number) object).floatValue();
    }

    try {
      return Float.valueOf(object.toString());
    } catch (NumberFormatException e) {
    } catch (NullPointerException e) {
    }
    return 0;
  }

  public static double toDouble(Object object) {
    if (object instanceof Number) {
      return ((Number) object).doubleValue();
    }

    try {
      return Double.valueOf(object.toString());
    } catch (NumberFormatException e) {
    } catch (NullPointerException e) {
    }
    return 0;
  }

  public static long toLong(Object object) {
    if (object instanceof Number) {
      return ((Number) object).longValue();
    }

    try {
      return Long.valueOf(object.toString());
    } catch (NumberFormatException e) {
    } catch (NullPointerException e) {
    }
    return 0;
  }

  public static short toShort(Object object) {
    if (object instanceof Number) {
      return ((Number) object).shortValue();
    }

    try {
      return Short.valueOf(object.toString());
    } catch (NumberFormatException e) {
    } catch (NullPointerException e) {
    }
    return 0;
  }

  public static byte toByte(Object object) {
    if (object instanceof Number) {
      return ((Number) object).byteValue();
    }

    try {
      return Byte.valueOf(object.toString());
    } catch (NumberFormatException e) {
    } catch (NullPointerException e) {
    }
    return 0;
  }

  public static boolean isFinite(double d) {
    return Math.abs(d) <= Double.MAX_VALUE;
  }

  public static boolean isFinite(float f) {
    return Math.abs(f) <= Float.MAX_VALUE;
  }

  public static void checkFinite(double d, String message) {
    if (!isFinite(d)) {
      throw new IllegalArgumentException(message);
    }
  }

  public static void checkFinite(float d, String message) {
    if (!isFinite(d)) {
      throw new IllegalArgumentException(message);
    }
  }
}