Flint Particle System Forum - aged exploding image

aged exploding image

steve — Thu, 28 Jan 2010 16:59:44 +0000

Hi Richard,

I am currently playing around with your particle system and find it a great tool to use.

I have looked at the explosion demo and I have tried to age the particles once they have exploded.

When I add Age to the action and then run the application the image just disappears.

I have also added Fade and Lifetime into the equation.

The application run when I comment out Age.

I have also changed the 2nd parameter in addExistingParticles to true while going through the discussion forum to see if anyone is doing the same thing, and it still doesn't work.

What am I doing wrong here?

Thanks in advance for any help provided

aged exploding image

Richard — Tue, 09 Feb 2010 13:54:24 +0000

If you add the Age action at the start, the image will start to fade immediately. If you don't want it to age until after the explosion, you need to add the Age action when the explosion occurs, which in the example means when the explode method runs. This is also where the Explosion action is added.

aged exploding image

jmp909 — Thu, 13 May 2010 16:28:11 +0100

i don't think Fade works with bitmap particles

from the Fade update function:

particle.color = ( particle.color & 0xFFFFFF ) | ( Math.round( alpha * 255 ) << 24 );

I don't think that's going to affect a bitmap's alpha

j

aged exploding image

Richard — Mon, 17 May 2010 22:20:39 +0100

Fade does work with bitmap renderers. The color, including alpha, is used when drawing the particle onto the bitmap canvas.