CanvasTopLeft

A callback timer with an elapsed time from a given start point. Although are in a general purpose form, the most common usage is for animations where things move dependent on how much time has passed. The function is of form: (elapsedTime(in milliseconds), Startime (in milliseconds) => Unit. The startTime is to be used to call the next frame at then end of the function, if another frame is needed.

Attempts to find find and load file, attempts to parse the file, attempts to find object of type A. If all stages successful, calls procedure (Unit returning function) with that object of type A

Returns the system (Unix) time in milliseconds.

Not sure why spacing has got a minus sign

Badly named I think, not sure why spacing has got a minus sign

The initial frame although are in a general purpose form, the most common usage is for animations where things move dependent on how much time has passed.

A call back timer. Takes the delay in milliseconds

Top right offset from centre.

The canvas implementation will call this function when the mouse button is depressed. Named after Javascript command.

The canvas implementation will call this function when a mouse button is released. Named after Javascript command.