Performance stages with diffrent lane id #20
Description
in stage.js there the following code inside the update method.
if (!(laneName in this.map_)) {
this.map_[laneName] = {};
this.laneID_Map[laneName] = Object.keys(this.laneID_Map).length;
// レーンが増えたため，ID を振り直す
let i = 0;
for (let key in Object.keys(this.laneID_Map).sort()) {
this.laneID_Map[key] = i;
i++;
}Why wouldn't suffice just assigning the new laneName to the last number as done in
this.laneID_Map[laneName] = Object.keys(this.laneID_Map).length;I don't know why would be necessary to reassign the whole laneID_Map object when the value given by the .length it's fine.
I notice this because for coloring reasons it's nice to assign different lane ids.