# Mc follow movement then bounce back

**URL:** <https://forum.kirupa.com/t/mc-follow-movement-then-bounce-back/183085>\
**Category:** Uncategorized\
**Created:** [March 23, 2006, 6:11pm UTC](https://forum.kirupa.com/t/mc-follow-movement-then-bounce-back/183085 "2006-03-23T18:11:09Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![rawnewdlz](https://avatars.discourse-cdn.com/v4/letter/r/e19adc/32.png) [@rawnewdlz](https://forum.kirupa.com/u/rawnewdlz)\
**Post date:** [March 23, 2006, 6:11pm UTC](https://forum.kirupa.com/t/mc-follow-movement-then-bounce-back/183085/1 "2006-03-23T18:11:09Z")

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Hi, I’m having trouble figuring this out. I want to have an mc act like an eyeball where it would follow the movement of the mouse but stay in one spot and if the mouse leaves a bufferzoneMC then the eye will bounce back to place. So far I have this.

on the actions layer (thx 2 scotty):  
ActionScript Code:  
[FONT=Courier New][LEFT][COLOR=#000000] **var** [/COLOR] xp = [COLOR=#000080]0[/COLOR], yp = [COLOR=#000080]0[/COLOR];  
[COLOR=#0000FF]MovieClip[/COLOR].[COLOR=#0000FF]prototype[/COLOR].[COLOR=#000080]move[/COLOR] = [COLOR=#000000] **function** [/COLOR][COLOR=#000000]([/COLOR]centerx, centery, inertia, k[COLOR=#000000])[/COLOR] [COLOR=#000000]{[/COLOR]  
x = -[COLOR=#0000FF]this[/COLOR].[COLOR=#0000FF]\_x[/COLOR]+centerx;  
y = -[COLOR=#0000FF]this[/COLOR].[COLOR=#0000FF]\_y[/COLOR]+centery;  
xp = xp_inertia+x_k;  
yp = yp_inertia+y_k;  
[COLOR=#0000FF]this[/COLOR].[COLOR=#0000FF]\_x[/COLOR] += xp;  
[COLOR=#0000FF]this[/COLOR].[COLOR=#0000FF]\_y[/COLOR] += yp;  
[COLOR=#000000]}[/COLOR];  
[/LEFT]  
[/FONT]

on the eyeMC  
ActionScript Code:  
[FONT=Courier New][LEFT][COLOR=#0000FF]onClipEvent[/COLOR]COLOR=#000000[/COLOR][COLOR=#000000]{[/COLOR]  
[COLOR=#000000] **var** [/COLOR] MAXeyeMovement = [COLOR=#000080]30[/COLOR]  
[COLOR=#000000] **var** [/COLOR] distanceFromEye = [COLOR=#000080]5[/COLOR]  
[COLOR=#000000] **var** [/COLOR] ovality = [COLOR=#000080]1[/COLOR].[COLOR=#000080]5[/COLOR]  
[COLOR=#000000] **var** [/COLOR] origin = [COLOR=#000000]{[/COLOR]x:[COLOR=#000080]116[/COLOR],y:[COLOR=#000080]191[/COLOR][COLOR=#000000]}[/COLOR]  
centerx = [COLOR=#000080]116[/COLOR];  
centery = [COLOR=#000080]191[/COLOR];  
x0 = [COLOR=#0000FF]this[/COLOR].[COLOR=#0000FF]\_x[/COLOR];  
y0 = [COLOR=#0000FF]this[/COLOR].[COLOR=#0000FF]\_y[/COLOR];  
[COLOR=#0000FF]\_root[/COLOR].[COLOR=#0000FF]\_xmouse[/COLOR] = [COLOR=#0000FF]this[/COLOR].[COLOR=#0000FF]\_x[/COLOR];  
[COLOR=#0000FF]\_root[/COLOR].[COLOR=#0000FF]\_ymouse[/COLOR] = [COLOR=#0000FF]this[/COLOR].[COLOR=#0000FF]\_y[/COLOR];  
[COLOR=#000000]}[/COLOR]

[COLOR=#0000FF]onClipEvent[/COLOR]COLOR=#000000[/COLOR][COLOR=#000000]{[/COLOR]  
xdiff = [COLOR=#0000FF]\_parent[/COLOR].[COLOR=#0000FF]\_xmouse[/COLOR] - origin.[COLOR=#000080]x[/COLOR]  
ydiff = [COLOR=#0000FF]\_parent[/COLOR].[COLOR=#0000FF]\_ymouse[/COLOR] - origin.[COLOR=#000080]y[/COLOR]  
radius = [COLOR=#0000FF]Math[/COLOR].[COLOR=#0000FF]min[/COLOR]COLOR=#000000[/COLOR]  
angle = [COLOR=#0000FF]Math[/COLOR].[COLOR=#0000FF]atan2[/COLOR]COLOR=#000000[/COLOR]  
[COLOR=#0000FF]\_x[/COLOR] = [COLOR=#0000FF]Math[/COLOR].[COLOR=#0000FF]cos[/COLOR]COLOR=#000000[/COLOR]_radius_ovality + origin.[COLOR=#000080]x[/COLOR]  
[COLOR=#0000FF]\_y[/COLOR] = [COLOR=#0000FF]Math[/COLOR].[COLOR=#0000FF]sin[/COLOR]COLOR=#000000[/COLOR]\*radius + origin.[COLOR=#000080]y[/COLOR]  
[COLOR=#0000FF]updateAfterEvent[/COLOR]COLOR=#000000[/COLOR]  
[COLOR=#000000]}[/COLOR]  
[/LEFT]  
[/FONT]

I was advised to try using:  
ActionScript Code:  
[FONT=Courier New][LEFT][COLOR=#0000FF]import[/COLOR] mx.[COLOR=#000080]transitions[/COLOR].[COLOR=#000080]Tween[/COLOR];  
[COLOR=#0000FF]import[/COLOR] mx.[COLOR=#000080]transitions[/COLOR].[COLOR=#000080]easing[/COLOR].\*;  
[/LEFT]  
[/FONT]

but can’t figure out how to get the eyeMC to bounce back to place w/out having to use startDrag();

Any help would be greatly appreciated.

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<div class="post-metadata">

**Author:** ![rawnewdlz](https://avatars.discourse-cdn.com/v4/letter/r/e19adc/32.png) [@rawnewdlz](https://forum.kirupa.com/u/rawnewdlz)\
**Post date:** [March 24, 2006, 2:58pm UTC](https://forum.kirupa.com/t/mc-follow-movement-then-bounce-back/183085/2 "2006-03-24T14:58:16Z")

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any advice?