spacetac/src/core/events/ValueChangeEvent.ts

/// <reference path="BaseBattleEvent.ts"/>

module TS.SpaceTac {
    /**
     * Event logged when a ship value or attribute changed
     */
    export class ValueChangeEvent extends BaseLogShipEvent {
        // Saved version of the current value
        value: ShipValue;

        // Value variation
        diff: number;

        constructor(ship: Ship, value: ShipValue, diff: number) {
            super("value", ship);

            this.value = copy(value);
            this.diff = diff;
        }

        getReverse(): BaseBattleEvent {
            let value = copy(this.value);
            value.set(value.get() - this.diff);
            return new ValueChangeEvent(this.ship, value, -this.diff);
        }
    }
}