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# Thread: Particle Question: how to attach...

1. ## Particle Question: how to attach...

Hi, if somebody could solve my problem, I finally can start creating levels for my game. Almost everything is done, only the ragdollphysics. The ragdolls itself are done, but I need to attach limb pictures etc... to the ragdoll

I'm using the Flade physics engine (http://www.cove.org/flade)
There you can download flade and the most usefull thing for me is that you create two particles and attach a stupid drawing to it (for example a woodblock). So that the block follows the constraint between the particles, got it?

Here's an example of the ragdoll (simple) that I created with Flade : http://sniperware.50webs.com/ragdoll.swf

My question is pretty hard isn't it? I tried everything!

2. Lets say, for example, the upper arm of your ragdoll extends from 'pointA' (shoulder) to 'pointB' (elbow)

to attach a movie clip to that, try doing the following thing:

(i'm assuming that the axis of the movieclip is where the arm is supposed to turn(shoulder))

1. position the movieclip at pointA.x,pointA.y

2. ang = getAngle(pointA,pointB) //in degrees

3. movieclip._rotation = ang //add or subtract from this value to correct for angle offset

im guessing you know how to find the angle between two points

3. No, i dont
thanks for the help.

4. ## try this

Code:
```function getAngle(pA,pB){
var xDiff=pA.x-pB.x
var yDiff=pA.y-pB.y
var radians = Math.atan2(yDiff, xDiff);
if (yDiff<0) {
}
return degrees
}```
good luck

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