play : revert

[ssjogus]

can we give a command to play a revert movie

like on press of a button, i write

_root.mv1.play();

and on another button i write

_root.mv1.play(revert) or something like that.

----------------

what i wan t to do is, i have a simple animation using motin tween. so when a picture in that animation reaches to a certain level, it should come back slowly (sort of rewind effect).

can we do like that? how?

shruti.

[jaybee]

there's a movieclip prototype here that does this or you could adapt to your own situation maybe.

[ssjogus]

from the photo you are looking very senior person. are you that much senior member?

about tutorial trying to understand it.

shruti.

[ssjogus]

hi!

i have gone through the tutorial, but as i have very little background of scripting, not getting, how to do it. is there any easier tutorial, or some flash file?

shruti.

[jaybee]

Originally posted by ssjogus
from the photo you are looking very senior person. are you that much senior member?

about tutorial trying to understand it.

shruti.

I am indeed highly senior. I'm having a senior moment right now, in fact. Where did I put my teeth....

re that code, it could be quite difficult to understand if you're new to it.....basically movieclips don't have an inbuilt method that makes them go backwards so you have make your own. They do, however, have a method called prevFrame that sends them to, erm, the previous frame, so we can use that, and an event called enterFrame, which happens every time they, erm, enter a frame so combining the two you have:

my_mc.onEnterFrame = function() {
this.prevFrame();
}

if you put this code on frame one of a movieclip nothing would happen, cos there is no *previous frame* - so you might want to say "if you are on the first frame, start at the last frame and go backwards:

my_mc.onEnterFrame = function() {
this._currentframe == 1 ? this.gotoAndStop(this._totalframes) : this.prevFrame();
}

cos all movieclips have properties called _currentframe and _totalframes which we can use.....

but apply this to a clip and it will *always* go backwards. With flash mx you can apply and remove eventhandlers so you could go:

movieclip.prototype.playBackwards = function(arg){
if(arguments.length>0) {
this.onEnterFrame= undefined;
this.play();
} else {
this.onEnterFrame = function() {
this._currentframe == 1 ? this.gotoAndStop(this._totalframes) : this.prevFrame();
}
}
}

........it might seem that all of a sudden it all got a lot more complicated but here we just add a method to all movieclips that can be used to apply and remove the code in the first example.......and you would call this with my_mc.playBackwards() and stop it with my_mc.playBackwards(false).....but it has the big disadvantage that the clip in question can't have any other enterFrame handler applied to it........incidentally the example I linked to earlier is prolly smarter/neater cos most things from that site are

have attached a version of this working

[ssjogus]

it seems that this fla file is created in MX. unable to open it flash 5. i had flash MX trial version, but the trial period of 1 month is expired.

shruti.

[CyanBlue]

Disregard this post if it is not the issue of playing forward and backward... I'm too lazy to read all of the thread...

I am just giving you an example on how to go forward and backward in F5...

[ssjogus]

this solved my problem,

thank you.

shruti.

[buzzby]

the back and forth movement is all very well if you are tweening. but what if you are using script to generate the movement? is it a totally different process? if so how do you generate the script to move back if originally you have developed script to move an object 500 units. so to start with your clip is at a value of x=0 and it needs to move in a smooth motion to a spot called x=500 and then move back again in a smooth motion back to x=0 rather than just appearing at x=0 to move again slowly to x=500.

how is this done?

any comments would be grateful

[Laguana]

If you've got flash mx 2004, i believe there's a mx.tweens.yoyo or something, which does all the hard work for you. Otherwise you need to make something like so:

myMC.speed = 5
myMC.direction = 1 // sets some variables...
myMC.onEnterFrame = function() {
this._x += this.speed * this.direction // makes it move either to the left or right by speed
if (this._x > maxX || this._x < minX) { // if the clip is past the boundaries...
this.dirextion *= -1 // make it go the other way
}
}