Drop/Gold Rate Display

//=========================================================
// CaeX_YEPStatusMenuExt.js
//=========================================================

/*:
 * @plugindesc v1.0 - Lets you add more attributes to Yanfly's Status Menu Core.
 * @author Caethyril
 *
 * @help Plugin Commands:
 *   None.
 *
 * Parameters:
 *   - Gold drop rate: 200% if party has Gold Double trait, else 100%.
 *   - Item drop rate: 200% if party has Item Drop Double trait, else 100%.
 *
 * Compatibility:
 *   Must be loaded after Yanfly's Status Menu Core plugin.
 *   Aliases Yanfly's drawAttributeData method on Window_StatusInfo.
 *
 * Terms of use:
 *   Free to use and modify.
 *
 * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 * Update log:
 *   1.0: Initial release.
 *
 * @param --- Attributes ---
 * @text --- Attributes ---
 * @type select
 * @default
 *
 * @param Gold drop rate key
 * @text Gold drop rate key
 * @parent --- Attributes ---
 * @type text
 * @desc The code for use in Yanfly's Status Menu Core plugin parameters.
 * @default gdr
 *
 * @param Gold drop rate name
 * @text Gold drop rate name
 * @parent --- Attributes ---
 * @type text
 * @desc How this entry will be labelled in-game.
 * @default Gold drop rate
 *
 * @param Item drop rate key
 * @text Item drop rate key
 * @parent --- Attributes ---
 * @type text
 * @desc The code for use in Yanfly's Status Menu Core plugin parameters.
 * @default idr
 *
 * @param Item drop rate name
 * @text Item drop rate name
 * @parent --- Attributes ---
 * @type text
 * @desc How this entry will be labelled in-game.
 * @default Item drop rate
 */

var Imported = Imported || {};                // Import namespace, var can redefine
Imported.CaeX_YEPStatusMenuExt = 1.0;            // Import declaration

var CAE = CAE || {};                    // Author namespace, var can redefine
CAE.X_YEPStatusMenuExt = CAE.X_YEPStatusMenuExt || {};    // Plugin namespace

(function(_) {

    if (!Imported.YEP_StatusMenuCore) console.error('CaeX_YEPStatusMenuCoreExt.js error! Could not find required plugin YEP_StatusMenuCore.js.');

    _.params = PluginManager.parameters('CaeX_YEPStatusMenuExt');

    _.Window_StatusInfo_drawAttributeData = Window_StatusInfo.prototype.drawAttributeData;
    Window_StatusInfo.prototype.drawAttributeData = function(attr, dx, dy, dw) {
        switch (attr) {
            case _.params['Gold drop rate key']:        // Gold drop rate
                this.drawAttributeName(_.params['Gold drop rate name'], dx, dy, dw);
                this.drawAttributeRate($gameParty.hasGoldDouble() ? 2 : 1, dx, dy, dw);
                break;
            case _.params['Item drop rate key']:        // Item drop rate
                this.drawAttributeName(_.params['Item drop rate name'], dx, dy, dw);
                this.drawAttributeRate($gameParty.hasDropItemDouble() ? 2 : 1, dx, dy, dw);
                break;
            default:
                _.Window_StatusInfo_drawAttributeData.call(this, attr, dx, dy, dw);
                break;
        }
    };

})(CAE.X_YEPStatusMenuExt);

//=========================================================
// CaeX_YEPStatusMenuExt.js
//=========================================================

/*:
 * @plugindesc v1.1 - Lets you add more attributes to Yanfly's Status Menu Core.
 * @author Caethyril
 *
 * @help Plugin Commands:
 *   None.
 *
 * Help:
 *   Define new attributes to display by adding to the Custom Attributes list.
 *    - Key is the string used to determine where it shows in YEP_StatusMenuCore
 *    - Label is the name of the attribute, shown to the player in-game
 *    - Value is a formula determining the value of the attribute.
 *   Then just add the new key(s) via the plugin parameters of YEP_StatusMenuCore.
 *
 *   Example formulae (for gold & item drop rates):
 *    - var nme = new Game_Enemy(1,0,0); nme.dropItemRate()
 *        This will return the item drop rate for enemy #1.
 *    - var trp = new Game_Troop(); trp.setup(1); trp.goldRate()
 *        This will return the gold drop rate for troop #1.
 *   Note that typically these rates are identical for all enemies/troops.
 *
 * Compatibility:
 *   Must be loaded after Yanfly's Status Menu Core plugin.
 *   Aliases Yanfly's drawAttributeData method on Window_StatusInfo.
 *
 * Terms of use:
 *   Free to use and modify.
 *
 * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 * Update log:
 *   1.1: Redesigned, now allows arbitrary new attributes to be added! \o/
 *        Users must design their own formulae for the values, though.
 *        Added a couple of formula examples to the help description.
 *   1.0: Initial release.
 *
 * @param Custom Attributes
 * @text Custom Attributes
 * @type struct<CaeTypeCustomAttr>[]
 * @desc List of custom values to add to the Attributes page of Yanfly's Status Menu Core.
 * @default []
 */
// ==================================================
/*~struct~CaeTypeCustomAttr:
 * @param Key
 * @text Key
 * @type text
 * @desc The code for use in Yanfly's Status Menu Core plugin parameters.
 * @default
 *
 * @param Label
 * @text Label
 * @type text
 * @desc How this entry will be labelled in-game.
 * @default
 *
 * @param Value
 * @text Value
 * @type text
 * @desc Formula determining the value to display.
 * Attributes will always display as percentages (1 = 100%).
 * @default
 */

var Imported = Imported || {};                // Import namespace, var can redefine
Imported.CaeX_YEPStatusMenuExt = 1.1;            // Import declaration

var CAE = CAE || {};                    // Author namespace, var can redefine
CAE.X_YEPStatusMenuExt = CAE.X_YEPStatusMenuExt || {};    // Plugin namespace

(function(_) {

'use strict';

    if (!Imported.YEP_StatusMenuCore) console.error('CaeX_YEPStatusMenuExt.js error! Could not find required plugin YEP_StatusMenuCore.js.');

    // Convert string -> array of {Key, Label, Value} objects
    _.params = JSON.parse(PluginManager.parameters('CaeX_YEPStatusMenuExt')['Custom Attributes']).map(JSON.parse);

    _.Window_StatusInfo_drawAttributeData = Window_StatusInfo.prototype.drawAttributeData;    // Alias
    Window_StatusInfo.prototype.drawAttributeData = function(attr, dx, dy, dw) {
        let ix = _.params.map(function(o) { return o.Key; }).indexOf(attr);        // Match key from plugin params
        if (ix < 0) {                                    // If no match
            _.Window_StatusInfo_drawAttributeData.call(this, attr, dx, dy, dw);    // Call original routine
        } else {                                    // Else
            let label = _.params[ix].Label;                        // Get param label
            let valEv = _.params[ix].Value;                        // Get param value string
            let value = 0;                                // Initialise for scope
            try {
                value = eval(valEv);                        // Attempt eval
            } catch (ex) {                                // On error, log message to console
                console.log('CaeX_YEPStatusMenuExt.js error! Attribute eval failed:\n' + valEv);
                value = 0;                            // Then zero value
            }
            this.drawAttributeName(label, dx, dy, dw);                // Draw label
            this.drawAttributeRate(value, dx, dy, dw);                // Draw value
        }
    };

})(CAE.X_YEPStatusMenuExt);