Speed of new coroutines?

test29

How fast are new coroutines? Is it possible to write big part of game in it or they are slow for that?

SinisterSoft

They run a thousand bytecode instructions (I think) before checking for autoyield (and so on) - so they should be quite fast. That is the only difference in speed compared to a normal game running just the vsync.

Modern cpus in phones are really fast anyhow so they should be fast enough - it really depends on the game.

I'm trying to rig my code in Dungeons so that the coroutine is use for the monster sprite 'brains', I'll then yield manually if running too fast - or process the brains continuously if running too slow.

The next version of Gideros has an extension I requested so that it makes doing this quite easy.

Use framecounter to slow down your game code to the frame - eg something like this

function game() while true do local currentFrame=Core.frameStatistics().frameCounter repeat   do game code here...   until currentFrame==Core.frameStatistics().frameCounter Core.yield(true) -- wait if going too fast end end

SinisterSoft

I've updated the code above as I spoke to @hgy29 to make it nicer to use and a bit more future proofed by using a table.

john26

We've had a report from @totebo, one of our major devs, that the speed is about the same with coroutines as without using them

http://giderosmobile.com/forum/discussion/comment/48685#Comment_48685

So it should be practical to use coroutines extensively.

totebo

True dat. Love my new "major dev" status, thanks @john26.