(function () {
	Game_Action.prototype.evalDamageFormula = function (target) {
		try {
			const item = this.item();
			const a = this.subject(); // eslint-disable-line no-unused-vars
			const b = target; // eslint-disable-line no-unused-vars
			const v = $gameVariables._data; // eslint-disable-line no-unused-vars

			const sign = [3, 4].includes(item.damage.type) ? -1 : 1;
			const value = Math.max(eval(item.damage.formula), 0) * sign;
			return isNaN(value) ? 0 : value;
		} catch (e) {
			return 0;
		}
	};
})();