<div class="panel panel-primary">
    <div class="panel-heading">Game View</div>
    <div class="panel-body">
        <div id="gameview"></div>
    </div>
</div>

<div class="panel panel-primary">
    <div class="panel-heading">Game View</div>
    <div class="panel-body">
        <div id="gameview"></div>
        <div class="form-group">
            <label for="scale" class="control-label">Scale: </label>
            <input type="number" id="scale" class="form-control" ng-model="game.viewport.scale" />
        </div>
    </div>
</div>

Add input para controlar a scala do viewport e simular tecnica de zoom
Add input para controlar a scala do viewport e simular tecnica de zoom
