Re: Turning an entire script into a coroutine

[PA <petite.abeille@...>]

On Feb 13, 2005, at 13:57, Michael Abbott wrote:

> This doesn't appear possible by what I can tell because the yield() 
> would need to know what coroutine this script is in relation to (a 
> script is not a coroutine right?).

I'm fairly new to Lua as well. And even more so to the weird but 
wonderful world of coroutines :)

That said, this is what I'm doing presently:

- I have a generic 'Task' object which 'wraps' any given object in a 
coroutine.
- The 'tasks' register themselves with a 'runloop' which enumerator 
through all the coroutines to give them a chance to run.
- When a 'task' is running, it's underlying object 'run' method is 
invoked with the 'task' passed as an argument.

As an example, here is the 'run' method of a 'timer' objects which 
invokes another object from time to time:

        this.run = function( aTask )
                repeat
                        if ( os.clock() - clock() >= this.interval() ) 
then
                                this.target().run( aTask, this )
                                resetClock()
                        end

                        aTask.yield()
                until this.shouldRepeat() == false
        end

http://dev.alt.textdrive.com/file/lu/LUTimer.lua
http://dev.alt.textdrive.com/file/lu/LUTask.lua
http://dev.alt.textdrive.com/file/lu/LURunLoop.lua

Cheers

--
PA, Onnay Equitursay
http://alt.textdrive.com/