react-simple-game-engine/lib/classes/simple-camera.js

[WIP] not able to use in currently. <!-- Document cumming soon... -->

var SimpleCamera = /** @class */ (function () {
    function SimpleCamera() {
        this._x = 0;
        this._y = 0;
        this.positionChangeListeners = [];
    }
    Object.defineProperty(SimpleCamera.prototype, "x", {
        get: function () {
            return this._x;
        },
        set: function (_x) {
            this._x = _x;
            this.emitPositionChangeEvent();
        },
        enumerable: false,
        configurable: true
    });
    Object.defineProperty(SimpleCamera.prototype, "y", {
        get: function () {
            return this._y;
        },
        set: function (_y) {
            this._y = _y;
            this.emitPositionChangeEvent();
        },
        enumerable: false,
        configurable: true
    });
    SimpleCamera.prototype.emitPositionChangeEvent = function () {
        var listeners = this.positionChangeListeners;
        for (var _i = 0, listeners_1 = listeners; _i < listeners_1.length; _i++) {
            var listener = listeners_1[_i];
            listener(this._x, this._y);
        }
    };
    SimpleCamera.prototype.addPositionChangeListener = function (func) {
        var listeners = this.positionChangeListeners;
        listeners.push(func);
        return function () {
            var index = listeners.indexOf(func);
            if (index > -1) {
                listeners.splice(index, 1);
            }
        };
    };
    return SimpleCamera;
}());
export { SimpleCamera };