de.gurkenlabs.litiengine.util.io

Class Codec

java.lang.Object

de.gurkenlabs.litiengine.util.io.Codec

public final class Codec
extends java.lang.Object

Method Summary

Modifier and Type	Method and Description
static byte[]	decode(java.lang.String base64) Decodes the specified Base64 string to a byte array.
static float	decodeAngle(byte encodedAngle) Decodes a previously encoded angle.
static float	decodeAngle(short encodedAngle)
static java.awt.image.BufferedImage	decodeImage(java.lang.String imageString)
static float	decodeSmallFloatingPointNumber(short encodedNumber, int precision) Decodes a small floating point number, previously encoded with encodeSmallFloatingPointNumber.
static java.lang.String	encode(java.awt.image.BufferedImage image)
static java.lang.String	encode(java.awt.image.BufferedImage image, ImageFormat imageFormat)
static java.lang.String	encode(byte[] data)
static byte	encodeAngle(float angle) Encodes an angle, loosing some precision.
static short	encodeAnglePrecise(float angle)
static short	encodeSmallFloatingPointNumber(float smallNumber, int precision) Encodes positive numbers less than Short.MAX_VALUE * 2 / precision (6553.4 for precision = 1).

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

decodeAngle

public static float decodeAngle(byte encodedAngle)

Decodes a previously encoded angle.

Parameters:

encodedAngle - The encoded angle.

Returns:

The decoded angle.

decodeAngle

public static float decodeAngle(short encodedAngle)

decodeSmallFloatingPointNumber

public static float decodeSmallFloatingPointNumber(short encodedNumber,
                                                   int precision)

Decodes a small floating point number, previously encoded with encodeSmallFloatingPointNumber.

Parameters:

encodedNumber - The encoded number

precision - The precision of the encoded number. The same precision, used for encoding.

Returns:

The decoded small floating point number.

encodeAngle

public static byte encodeAngle(float angle)

Encodes an angle, loosing some precision. The encoded / decoded values can differ at max. around 1.43 degrees from the original one.

Parameters:

angle - The angle

Returns:

The encoded angle.

encodeAnglePrecise

public static short encodeAnglePrecise(float angle)

encodeSmallFloatingPointNumber

public static short encodeSmallFloatingPointNumber(float smallNumber,
                                                   int precision)

Encodes positive numbers less than Short.MAX_VALUE * 2 / precision (6553.4 for precision = 1).

Parameters:

smallNumber - The small number to encode

precision - The comma precision for the encoding process.

Returns:

The encoded number.

decodeImage

public static java.awt.image.BufferedImage decodeImage(java.lang.String imageString)

encode

public static java.lang.String encode(java.awt.image.BufferedImage image)

encode

public static java.lang.String encode(java.awt.image.BufferedImage image,
                                      ImageFormat imageFormat)

encode

public static java.lang.String encode(byte[] data)

decode

public static byte[] decode(java.lang.String base64)

Decodes the specified Base64 string to a byte array.

Parameters:

base64 - The Base64 string containing the encoded binary data.

Returns:

The decoded byte array.

See Also:

Base64