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PO1 Object is linked to another Object though a third Object, how can I look up the third Object, based on knowing the 2 other Objects?
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  1. PO1 Object is linked to another Object though a third Object, how can I look up the third Object, based on knowing the 2 other Objects?
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    copied!<p>I'm working in AS3 specifically but I feel that this is a pretty agnostic question.</p> <p>Specifically I have sphere objects that can be linked to other sphere objects. They are linked though a third object. I would like to be able to look up the the linking object with only the knowledge of 2 sphere objects that are currently linked together. How would you approach this? </p> <p>I would like to having to store a unique identifier string in each sphere object, just to avoid a global check to ensure that they are unique... but not opposed to the idea if it comes down to it.</p> <p>----- solution ------</p> <p>here is the solution I ended up with:</p> <pre><code>private function breakAtomicBonds( p_interactiveMatter:InteractiveMatter ):void { var matchAmount:int; var key:Object; var atom:InteractiveMatter; var constraint:Constraint; var atoms:Vector.&lt;InteractiveMatter&gt;; var atomVOs:Vector.&lt;InteractiveMatterVO&gt;; var bond:InteractiveMatterVO; var bondIndex:int; var i:int; for( i = p_interactiveMatter.interactiveMatterVO.bonds.length - 1; i &gt;= 0; i--) // each( bond in p_interactiveMatter.interactiveMatterVO.bonds ) { bond = p_interactiveMatter.interactiveMatterVO.bonds[i]; for( key in _constraints ) { if( key is Constraint ) { constraint = key as Constraint; atoms = _constraints[key] as Vector.&lt;InteractiveMatter&gt;; atomVOs = new Vector.&lt;InteractiveMatterVO&gt;; for each( atom in atoms ) { atomVOs.push( atom.interactiveMatterVO ); } matchAmount = 0; if( atomVOs.indexOf(p_interactiveMatter.interactiveMatterVO) != -1 ) { matchAmount++; } if( atomVOs.indexOf( bond ) != -1 ) { matchAmount++; } if( matchAmount == 2 ) { trace( 'found constraint!' ); _physicsWorld.removeConstraint( constraint ); delete _constraints[constraint]; for each(atom in atoms) { bondIndex = atom.interactiveMatterVO.bonds.indexOf( bond ) if( bondIndex != -1 ) { atom.interactiveMatterVO.bonds.splice( bondIndex, 1 ); } bondIndex = atom.interactiveMatterVO.bonds.indexOf( p_interactiveMatter.interactiveMatterVO ); if( bondIndex != -1 ) { atom.interactiveMatterVO.bonds.splice( bondIndex, 1 ); } } break; } } } } } </code></pre>
 

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