Rpg Maker Developers Group

 * ===================================================================================
 * == About this Plugin ==============================================================
 * ===================================================================================
 * This plugin replace the default number input process with
 * a numeric pad. Navigate the pad with keyboard arrows or
 * mouse, or directly type the digits on the keyboard to
 * input numbers in game.
 *
 * HOW TO USE:
 *
 *      -Install the plugin in your Plugin Manager
 *      -Use the default event command: 'Number Input Process'
 *
 * Same as default, set the max digits and the game variable ID
 * that will store the input number. Once you confirm and close
 * the number input pad, the returning value will be stored in
 * that game variable.
 *
 *
 * Using plugin commands, you can set 3 different layouts for the
 * numeric panel:
 *
 * Layout 1
 * ========
 * This is the basic layout:
 *
 *     1  2  3
 *     4  5  6
 *     7  8  9
 *     C  0  Ok
 *
 * Buttons:
 *    Digits [0-9] = input a digit
 *              Ok = confirm the input and close
 *               C = delete last digit, close if no inputs
 *
 *
 * Layout 2
 * ========
 * This layout allow to return negative values.
 *
 *     1  2  3  C
 *     4  5  6  AC
 *     7  8  9  +/-
 *       0   Ok
 *
 * Additional buttons:
 *              AC = delete all digits, close if no inputs
 *             +/- = toggle On/Off the minus sign, return
 *                   negative values when On
 *                   
 *
 * Layout 3
 * ========
 * This layout add the dot (.) button to turn the
 * number into a floating value.
 *
 *     1  2  3  C
 *     4  5  6  AC
 *     7  8  9  +/-
 *     .  0   Ok
 *
 * Additional button:
 *              . = input a dot to turn the number into a
 *                  floating value***
 *
 *
 *    *** Floating value ***
 * 
 *  The input number is returned inside a game variable.
 *  By default game variables cannot stored floating numerical
 *  values, so when the input number is a floating value, the
 *  plugin will return the value as a string (text), see bellow.
 *
 *  ******************************************************
 *
 *
 *
 * Plugin commands
 * ===============
 *
 *   -Number input layout:
 *          Select between one of the 3 layouts described above
 *
 *
 *   -Number input font face:
 *          Select between the main font face or the number font
 *          face for the number input windows.
 *
 *              *the main font face and the number font face are
 *               the 2 default font faces set in the data base.
 *
 *
 *   -Input leading zeros:
 *          If you want the returning combination to includes '0'
 *          in front, like: 0246, you can enable the leading zeros.
 *          Note that in this case the returning value will be a
 *          string (text), see bellow.
 *         
 *
 *   -Number input auto close:
 *          When enabled, the number input windows will automatically
 *          confirm and close when the last digits is input.
 *
 *            Ex:
 *              You have set the maximum digits to 4.
 *              The number input process will close as
 *              soon as a fourth digit is input.
 *           
 *
 *   -Revert digits layout:
 *          Revert the first and second digits rows.
 *
 *           revert        no revert
 *          7  8  9         1  2  3
 *          4  5  6         4  5  6
 *          1  2  3         7  8  9
 *
 *
 *
 *   ** String values **
 * **********************************************************
 * When the returning value is a string, you cannot directly
 * compare it to a numerical value, and math operations using
 * a string value might render unexpected results.
 *
 * A string value can be convert to a numerical value using
 * the parseInt method in js.
 *
 *    Ex: parseInt('123') = 123
 *
 * But doing that will remove any leading zeros and round up
 * floating values.
 *
 * The parseFloat method can be use for returning the floating
 * value of a string.
 *
 *    Ex: parseFloat('0.56') = 0.56
 *
 *
 * For direct comparison, you can simply check if the returing
 * value is equal to the corresponding string (between quotes).
 *
 *    Ex: If the returning value is '00456' and is stored
 *        in the game variable X.
 *
 *        You can check if:
 *          $gameVariables.value(X) === '00456'
 *
 *
 * Important notes:
 *
 *     -Float
 *         If you're using the Layout 3. The returning value
 *         will be a string only if it contains a dot ('.').
 *         Otherwise it will return a numerical value.
 *
 *     -Leading zeros
 *         If you have enabled the 'Leading zeros' option, the
 *         returning value will always be a string, even if it
 *         doesn't contains any leading zeros.
 *
 * **********************************************************