1/ list the viewer from a channel, and send kid clip

build symmetric dictionary using python in maya

import maya.cmds as mc
preciseMax=0.001
verDic=mc.ls(os=True,fl=True)
lefDic={}
rightDic={}
middleList={}
for verDicI in verDic:
pos=mc.xform(verDicI,q=True,ws=True,t=True)
if pos[0]>=- preciseMax and pos[0]<=preciseMax:
middleList[verDicI]=pos
elif pos[0]>preciseMax:
lefDic[verDicI]=pos
else:
rightDic[verDicI]=pos


symDic={}
for lefDicI in lefDic.keys():
for rightDicI in rightDic.keys():
if rightDic[rightDicI][0]<=-lefDic[lefDicI][0]+preciseMax and rightDic[rightDicI][0]>=-lefDic[lefDicI][0]-preciseMax:
if rightDic[rightDicI][1]<=lefDic[lefDicI][1]+preciseMax and rightDic[rightDicI][1]>=lefDic[lefDicI][1]-preciseMax:
if rightDic[rightDicI][2]<=lefDic[lefDicI][2]+preciseMax and rightDic[rightDicI][2]>=lefDic[lefDicI][2]-preciseMax:
symDic[lefDicI]=rightDicI
break

This simple scriptlet unlocks and unhides the default transform attributes (translate, rotate, scale)

CODE
global proc msAttrUnlockUnhide_all()
{
string $selectedObj[] = ls -sl;
for($obj in $selectedObj)
{
string $attrList[] = listAttr -v -l;                // Get attributes that are visibily locked
for($attribute in $attrList)
{
setAttr -k 1 -l 0 ($obj + "." + $attribute);    // Unhide and unlock attribute
}
/*
Set Default trans, rot, and scale attribute to unhidden and unlocked
*/
setAttr -k 1 ($obj + ".tx");
setAttr -l 0 ($obj + ".tx");
setAttr -k 1 ($obj + ".ty");
setAttr -l 0 ($obj + ".ty");
setAttr -k 1 ($obj + ".tz");
setAttr -l 0 ($obj + ".tz");

setAttr -k 1 ($obj + ".sx");
setAttr -l 0 ($obj + ".sx");
setAttr -k 1 ($obj + ".sy");
setAttr -l 0 ($obj + ".sy");
setAttr -k 1 ($obj + ".sz");
setAttr -l 0 ($obj + ".sz");

setAttr -k 1 ($obj + ".rx");
setAttr -l 0 ($obj + ".rx");
setAttr -k 1 ($obj + ".ry");
setAttr -l 0 ($obj + ".ry");
setAttr -k 1 ($obj + ".rz");
setAttr -l 0 ($obj + ".rz");

clear $attrList;

$attrList = listAttr -ud;                // Get attributes that are userdefined, hidden or not
for($attribute in $attrList)
{
setAttr -k 1 -l 0 ($obj + "." + $attribute);    // Unhide and unlock attribute
}
clear $attrList;
}    

clear  $selectedObj;
}

msAttrUnlockUnhide_all;

crowd

//creation

 

//seed to get repeatable results

 

seed(particleShape1.particleId * 5);

 

//decide which character will be born

 

particleShape1.character = trunc(rand(0,5));

 

//store each particle's birth position in U

 

particleShape1.initUPlacePP = rand(0,1);

 

//set birth positions in U and V

 

particleShape1.parentU  = particleShape1.initUPlacePP;

 

particleShape1.parentV = rand(0,.1);

 

//set goals to equal parent values to stay on surface

 

particleShape1.goalU = particleShape1.parentU;

 

particleShape1.goalV = particleShape1.parentV;

 

//girl

 

if(particleShape1.character == 0){

 

particleShape1.customIndex = rand(0,15);

 

particleShape1.customSpeed = .005;

 

}

 

//guy

 

if(particleShape1.character == 1){

 

particleShape1.customIndex = rand(16,31);

 

particleShape1.customSpeed = .005;

 

}

 

//Soldier

 

if(particleShape1.character == 2){

 

particleShape1.customIndex = rand(32,47);

 

particleShape1.customSpeed = .005;

 

}

 

//Dog

 

if(particleShape1.character == 3){

 

particleShape1.customIndex = rand(48,66);

 

particleShape1.customSpeed = .0025;

 

}

 

//Zombie

 

if(particleShape1.character == 4){

 

particleShape1.customIndex = rand(67,101);

 

particleShape1.customSpeed = .0009;

 

}

 

//this particle was being weird, kill it

 

if(particleShape1.particleId == 48){

 

particleShape1.lifespanPP = 0;

 

}

 

//Runtime

 

//add a predetermined value to parentV every frame to move particle forward

 

particleShape1.parentV += particleShape1.customSpeed;

 

particleShape1.goalV= particleShape1.parentV;

 

//first obstacle

 

particleShape1.obstruction_01 = mag(particleShape1.inputForce[0]);

 

//separate the position vector so individual channels can be changed

 

vector $particlePos = particleShape1.position;

 

//all particles on the left of obstacle

 

if(particleShape1.obstruction_01 > 0 && $particlePos.x < radialField1.translateX){

 

    //yet to pass obstacle

 

    if($particlePos.z > radialField1.translateZ){

 

        particleShape1.parentU -= .001;

 

        particleShape1.goalU = particleShape1.parentU;

 

    }

 

    //already passed obstacle

 

    if($particlePos.z < radialField1.translateZ){

 

        particleShape1.parentU += .001;

 

        particleShape1.goalU = particleShape1.parentU;

 

            //if particle ever reaches it's birth U position, stop moving left/right

 

            if(particleShape1.parentU == particleShape1.initUPlacePP)

 

            particleShape1.goalU += 0;

 

    }

 

}

 

//all particles on the right of obstacle

 

if(particleShape1.obstruction_01 > 0 && $particlePos.x > radialField1.translateX){

 

    //yet to pass obstacle

 

    if($particlePos.z > radialField1.translateZ){

 

        particleShape1.parentU += .001;

 

        particleShape1.goalU = particleShape1.parentU;

 

    }

 

    //already passed obstacle

 

    if($particlePos.z < radialField1.translateZ){

 

        particleShape1.parentU -= .001;

 

        particleShape1.goalU = particleShape1.parentU;

 

            //if particle reaches its birth U postion, stop moving left/right

 

            if(particleShape1.parentU == particleShape1.initUPlacePP)

 

            particleShape1.goalU += 0;

 

    }

 

    

 

}

 

//character behavior

 

//girl

 

if (particleShape1.character == 0){

 

    particleShape1.customIndex += 1;

 

        if(particleShape1.customIndex >= 15){

 

        particleShape1.customIndex = 0;

 

        }

 

}//guy

 

if (particleShape1.character == 1){

 

    particleShape1.customIndex += 1;

 

        if(particleShape1.customIndex >= 31){

 

        particleShape1.customIndex =16;

 

        }

 

}

 

//soldier

 

if (particleShape1.character == 2){

 

    particleShape1.customIndex += 1;

 

        if(particleShape1.customIndex >= 47){

 

        particleShape1.customIndex =32;

 

        }

 

}

 

//dog

 

if (particleShape1.character == 3){

 

    particleShape1.customIndex += 1;

 

        if(particleShape1.customIndex >= 66){

 

        particleShape1.customIndex =48;

 

        }

 

}

 

//zombie

 

if (particleShape1.character == 4){

 

    particleShape1.customIndex += 1;

 

        if(particleShape1.customIndex >= 101){

 

        particleShape1.customIndex =67;

 

        }

 

}

 

//if character reaches end of surface, kill it

 

if(particleShape1.parentV >=1){

 

particleShape1.lifespanPP = 0;

 

}