The Astart Command
The astart command starts a stopped animation which has been set up using the animate command.
The optional name argument specifies the name of the object containing the animation to be started. Object names are assigned via the name command.
The flag argument specifies whether the animation will run "looping." flag can be either "on", "true", or "yes" to make the animation looping, and either "off", "false", or "no" to make it non-looping. A looping animation repeats endlessly, while a non-looping animation stops when it reaches the last frame.
See the animate command for an example of how to use astart.