energy bar : drawrect alternative

Hi !
At this time i use drawrect into my game to draw the 'energy' bar used by the player space ship beam :



Is there another method to not use drawrect (slow) for this energy bar ? (when the player shoot the beam energy bar decrease by one pixel)

Thanks for your ideas !

A rect image with setscale?
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Setviewport?
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drawimagerect?

I draw 'progress' bars with three images. One stretched horizontally for the center part, then a rounded image at either end.

Is draw rect slow then? I'd have thought it was very fast.

Yeah basically make an image which is your bar and only draw a portion of it.

Don't use setviewport because it's unreliable on some PCs.

You've got my framework haven't you? Use ccDrawImageArea instead.

I do what Gfk does. Three images, although you could just do it with one if you don't want rounded ends. Just make use of the normal DrawImage and SetScale commands.

i did this with blitzplus. With bmax your ccDrawImageArea could be a solution (for 'graphics' bars as colors gradient). Hope it's work on all the PC. (before this my first attemps with setviewport was awfull !!!). Is it really fast ?


i hope that setscale is not a 'too slow' command ! it's a good idea too !

Thanks for your ideas !

SetScale is fast. You'll use it a lot.

Yeah I use setscale all the time for like hundreds of spinning particles.