//=============================================================================
// LWP_RestrictedSelling.js
//=============================================================================
/*:
* @plugindesc Conversations in battles.
* @author Logan Pickup
*
* @help
*
* ============================================================================
* Plugin Commands
* ============================================================================
*
* BUY_ONLY a b c ...
* The next shop command will create a shop menu that only buys the listed
* items. The items to buy are specified as follows:
* wX, e.g. w1: buy only weapon 1.
* wtX, e.g. wt1: buy only weapon *type* 1.
* iX, e.g. i1: buy only item 1.
* itX, e.g. it1: buy only item *type* 1. Normal items=1, key items=2.
* aX, e.g. a1: buy only armour 1.
* atX, e.g. at1: buy only armour *type* 1.
* etX, e.g. et1: buy only equipment type 1 (only applies to armour and weapons).
*
* This plugin command only works once to affect the next shop menu called from the
* same script. Multiple BUY_ONLY commands do not stack; only the last one takes effect.
*
* Example:
*
* BUY_ONLY i1 it2 w1 w2 wt3 e5
* The next shop will only purchase from the player:
* - items with ID 1 (Potion in default data)
* - key items
* - weapons with ids 1 and 2 (Sword and Axe in default data)
* - weapon type 3 (flail in the default data - there are no weapons of this type in the default data)
* - equipment type 5 (accessory in the default data - the Ring qualifies)
*/
(function() {
///////////////////////////////////////////////////////////////////////////////
// Window_ShopSell
// This is the window that contains the player's items (it's a Window_ItemList)
// and already contains a method letting us check if an item can be sold or not
///////////////////////////////////////////////////////////////////////////////
Window_ShopSell.prototype.setRestrictions = function(restrictions) {
this._restrictions = restrictions;
console.log("sell window restrictions", this._restrictions);
};
const oldWindow_ShopSellIncludes = Window_ShopSell.prototype.includes;
Window_ShopSell.prototype.includes = function(item) {
return oldWindow_ShopSellIncludes.call(this, item) && this.isAllowed(item);
};
Window_ShopSell.prototype.isAllowed = function(item) {
if (this._restrictions && this._restrictions.buy) {
console.log("checking ", item, this._restrictions);
if (item.wtypeId) {
if (this._restrictions.buy.weaponId.indexOf(item.id) !== -1) return true;
if (this._restrictions.buy.wType.indexOf(item.wtypeId) !== -1) return true;
if (this._restrictions.buy.eType.indexOf(item.etypeId) !== -1) return true;
}
if (item.atypeId) {
if (this._restrictions.buy.armourId.indexOf(item.id) !== -1) return true;
if (this._restrictions.buy.aType.indexOf(item.atypeId) !== -1) return true;
if (this._restrictions.buy.eType.indexOf(item.etypeId) !== -1) return true;
}
if (item.itypeId) {
if (this._restrictions.buy.itemId.indexOf(item.id) !== -1) return true;
if (this._restrictions.buy.iType.indexOf(item.itypeId) !== -1) return true;
}
return false;
} else {
return true;
}
}
const oldWindow_ShopSellIsEnabled = Window_ShopSell.prototype.isEnabled;
Window_ShopSell.prototype.isEnabled = function(item) {
return oldWindow_ShopSellIsEnabled.call(this, item) && this.isAllowed(item);
};
///////////////////////////////////////////////////////////////////////////////
// Scene_Shop
// Just handles passing the data through to Window_ShopSell
///////////////////////////////////////////////////////////////////////////////
const oldScene_ShopPrepare = Scene_Shop.prototype.prepare;
Scene_Shop.prototype.prepare = function(goods, purchaseOnly, restrictions) {
oldScene_ShopPrepare.call(this, goods, purchaseOnly);
this._restrictions = restrictions;
};
const oldScene_ShopCreateSellWindow = Scene_Shop.prototype.createSellWindow;
Scene_Shop.prototype.createSellWindow = function() {
oldScene_ShopCreateSellWindow.call(this);
this._sellWindow.setRestrictions(this._restrictions);
}
///////////////////////////////////////////////////////////////////////////////
// Game_Interpreter
// Performs the plugin command, saves the data until the next shop command, and
// passes the data (via SceneManager) to Scene_Shop
///////////////////////////////////////////////////////////////////////////////
const oldGame_InterpreterSetup = Game_Interpreter.prototype.setup;
Game_Interpreter.prototype.setup = function(list, eventId) {
oldGame_InterpreterSetup.call(this, list, eventId);
this._nextShopRestrictions = {};
}
function filterPrefix(prefix) {
return function(x) {
return x.startsWith(prefix) && x.length > prefix.length && /[0-9]/.test(x[prefix.length]);
}
}
function getId(x) {
return Number.parseInt(/[0-9]+/.exec(x)[0]);
}
const oldGame_InterpreterPluginCommand = Game_Interpreter.prototype.pluginCommand;
Game_Interpreter.prototype.pluginCommand = function(command, args) {
if (/buy_only/i.test(command)) {
this._nextShopRestrictions.buy = {
itemId: args.filter(filterPrefix('i')).map(getId),
armourId: args.filter(filterPrefix('a')).map(getId),
weaponId: args.filter(filterPrefix('w')).map(getId),
iType: args.filter(filterPrefix('it')).map(getId),
aType: args.filter(filterPrefix('at')).map(getId),
wType: args.filter(filterPrefix('wt')).map(getId),
eType: args.filter(filterPrefix('et')).map(getId),
};
return;
}
oldGame_InterpreterPluginCommand.call(this, command, args);
};
const oldGame_InterpreterCommand302 = Game_Interpreter.prototype.command302;
Game_Interpreter.prototype.command302 = function() {
if (this._nextShopRestrictions.buy) {
// straight replacement, no fallback
if (!$gameParty.inBattle()) {
var goods = [this._params];
while (this.nextEventCode() === 605) {
this._index++;
goods.push(this.currentCommand().parameters);
}
SceneManager.push(Scene_Shop);
SceneManager.prepareNextScene(goods, this._params[4], this._nextShopRestrictions);
this._nextShopRestrictions = {};
}
return true;
} else {
// fallback so if something changes original shop creation, it will only
// break restricted shops, not all shops
return oldGame_InterpreterCommand302.call(this);
}
};
})();
