new MapLimits(low, high)
Creates a new MapLimits instance to be passed to the CreateMMORoomSettings class.
The MapLimits parameters must be passed as a 
Vec3D instances, but this class is not available in JavaScript due to constructor overloading in Java.
You can use the Vectors.newVec3D helper method to generate a Vec3D object as appropriate.
Parameters:
| Name | Type | Description |
|---|---|---|
low |
Vec3D | The lower coordinate limits. |
high |
Vec3D | The higher coordinate limits. |