The Camera class allow you to create a camera who has the purpose to simulate a camera on some layers. Each Layer or Window contain a camera for moving te point of view displayed.

Manipulate the camera

The movement of the camera is based on an internal matrix, representing the point of view of the camera. This class provide an useful way to moving in the space without using directly matrices. All manipulation methods matrix provided are applied in a fixed order:

• translation
• rotation
• skew
• scale

the aim is to use each type of transformation separately, regardless of the order of method calls.

It's also possible to directly use the matrix methods, but both methods are not compatible, because calling a method from the camera will overwrite the matrix.
If you choose to directly manipulate the matrix, be careful to not use matrix transformations method provided by the Camera class.

Extending the class

The Camera class provide only basic features and is destined to be extended. The two important methods are prepare and update

• prepare is called for preparing the graphic rendering (just applying matrix by default).
  More information here
• update is an optional method (and is not provided in this class) called regularly, useful for adding a dynamic behavior.
  Note that you can take advantage of Javascript by adding directly an update method on the Camera instance.