Estimating duration of AnimatedSprite's single run

[jay3sh]

In my game I've a tower sprite (it's a top-down 2D RTS game). I rotate it with my animation mechanism (i.e. I update the sprite.rotation in steps). While rotating I also want to run the firing animation of this tower sprite. To synchronize these two animations I want to know how long (in msec) it will take for one run of the sprite animation.

The only way to specify how fast the AnimatedSprite should run is to set the `speed` property. However this value is an arbitrary scaling factor for internal time. Is there a way to estimate how long a single run of the animation takes for a given `speed` value?

 

[ivan.popelyshev]

Look up sources: https://github.com/pixijs/pixi.js/blob/dev/src/extras/AnimatedSprite.js

Look up for problems of pixi vanilla AnimatedSprite: https://github.com/pixijs/pixi.js/issues/4270 

Look up other people implementations : https://gitlab.com/griest/pixi-actor#README

Also you have to know that "delta" value used in all pixi tickers is 1.0 for ideal frame of 60 FPS, that's why you can write things like "mySprite.x += 0.1 * delta".

If you want fixed frames, either make sure delta passed to AnimatedSprite is always 1.0 by turning off autoUpdate and calling update(1.0) on your side.

Or you can write your own AnimatedSprite.