MC UV Fixer

proc vector translatePolyInfoNormal( string $pin )
{
  vector $normal;
  float $x;
  float $y;
  float $z;

  string $tokens[];
  int $numTokens = `tokenize $pin " " $tokens`;

  // Make sure we're looking at polyInfo data:
  if ( ( $numTokens > 3 ) && ( $tokens[0] == "FACE_NORMAL" ) )
  {
    // Maya performs data-type conversion here.
    $x = ($tokens[$numTokens-3]);
    $y = ($tokens[$numTokens-2]);
    $z = ($tokens[$numTokens-1]);

    $normal = << $x, $y, $z >>;

    // Normalize it.
    $normal = `unit $normal`;
  }

  // Return it.
  return $normal;
}

global string $XintFieldName="";
global string $YintFieldName="";
global string $ZintFieldName="";

MainWindowUVPlacer;

global proc MainWindowUVPlacer()
{
    // check first for another instance of this window..
    if((`window -exists "MC UV Fixer"`) == true) {
        // ..if there is, close it
        deleteUI MainWindow;
    }
    // create the window
    createMainWindow("MC UV Fixer");
}

proc createMainWindow(string $name) {
    global string $XintFieldName;
    global string $YintFieldName;
    global string $ZintFieldName;

    // set our window sizes
    $windowHeight = 256;
    $windowWidth = 450;

    string $windowName = `window -widthHeight 300 200 -title $name $name`;

    frameLayout -l "MC UV Fixer" -mh 5 -mw 5;

    columnLayout -adjustableColumn true -columnAttach "both" 10;

    text -label "\nMenu" -align "center";
    separator -height 10;
    text -label "X Center";
    $XintFieldName = `intField -value 1`;
    text -label "Y Center";
    $YintFieldName = `intField -value 1`;
    text -label "Z Center";
    $ZintFieldName = `intField -value 1`;

    button -label "Fix UVs" -command start;

    showWindow $windowName;
}


global proc start(){

global string $XintFieldName;
global string $YintFieldName;
global string $ZintFieldName;

int $xm = `intField -query -value $XintFieldName`;

int $ym = `intField -query -value $YintFieldName`;

int $zm = `intField -query -value $ZintFieldName`;


string $selection[] = `ls -sl`;
select -r $selection.f["*"];
string $faceList[] = `filterExpand -sm 34`;
$nof = (size($faceList));
$nofLoop = $nof - 1;
print ("\nNum of faces is: " + $nof + "\n");
select -r $selection ;
string $xFace[];
int $xI = 0;
string $yFace[];
int $yI = 0;
string $zFace[];
int $zI = 0;

string $nxFace[];
int $nxI = 0;
string $nyFace[];
int $nyI = 0;
string $nzFace[];
int $nzI = 0;

for ($i=0;$i<=$nofLoop;$i=$i+1)
{
    string $polyInfo[] = `polyInfo -faceNormals $faceList[$i]`;
    vector $normal = translatePolyInfoNormal($polyInfo[0]);
    if($normal.x > 0.5){
        $xFace[$xI] = $faceList[$i];
        $xI = $xI + 1;
    }
    if($normal.y > 0.5){
        $yFace[$yI] = $faceList[$i];
        $yI = $yI + 1;
    }
    if($normal.z > 0.5){
        $zFace[$zI] = $faceList[$i];
        $zI = $zI + 1;
    }

	if($normal.x < -0.5){
        $nxFace[$nxI] = $faceList[$i];
        $nxI = $nxI + 1;
    }
    if($normal.y < -0.5){
        $nyFace[$nyI] = $faceList[$i];
        $nyI = $nyI + 1;
    }
    if($normal.z < -0.5){
        $nzFace[$nzI] = $faceList[$i];
        $nzI = $nzI + 1;
    }
}
if(size($xFace) > 0){
select -r $xFace;
string $xProjection[] = `polyProjection -ch 1 -type Planar -ibd off -md x -pcx 1 -pcy 1 -pcz 1`;

$proj = $xProjection[0];
setAttr ($proj + ".projectionCenterX") $xm;
setAttr ($proj + ".projectionCenterY") $ym;
setAttr ($proj + ".projectionCenterZ") $zm;
setAttr ($proj + ".projectionWidth") 2;
setAttr ($proj + ".projectionHeight") 2;
}
if(size($yFace) > 0){
select -r $yFace;
string $yProjection[] = `polyProjection -ch 1 -type Planar -ibd off -md y -pcx 1 -pcy 1 -pcz 1`;
$proj = $yProjection[0];
setAttr ($proj + ".projectionCenterX") $xm;
setAttr ($proj + ".projectionCenterY") $ym;
setAttr ($proj + ".projectionCenterZ") $zm;
setAttr ($proj + ".projectionWidth") 2;
setAttr ($proj + ".projectionHeight") 2;
}
if(size($zFace) > 0){
select -r $zFace;
string $zProjection[] = `polyProjection -ch 1 -type Planar -ibd off -md z -pcx 1 -pcy 1 -pcz 1`;
$proj = $zProjection[0];
setAttr ($proj + ".projectionCenterX") $xm;
setAttr ($proj + ".projectionCenterY") $ym;
setAttr ($proj + ".projectionCenterZ") $zm;
setAttr ($proj + ".projectionWidth") 2;
setAttr ($proj + ".projectionHeight") 2;

}

if(size($nxFace) > 0){
select -r $nxFace;
string $nxProjection[] = `polyProjection -ch 1 -type Planar -ibd off -md x -pcx 1 -pcy 1 -pcz 1`;

$proj = $nxProjection[0];
setAttr ($proj + ".projectionCenterX") $xm;
setAttr ($proj + ".projectionCenterY") $ym;
setAttr ($proj + ".projectionCenterZ") $zm;
setAttr ($proj + ".projectionWidth") 2;
setAttr ($proj + ".projectionHeight") 2;
setAttr ($proj + ".imageScaleU") -1;
}
if(size($nyFace) > 0){
select -r $nyFace;
string $nyProjection[] = `polyProjection -ch 1 -type Planar -ibd off -md y -pcx 1 -pcy 1 -pcz 1`;
$proj = $nyProjection[0];
setAttr ($proj + ".projectionCenterX") $xm;
setAttr ($proj + ".projectionCenterY") $ym;
setAttr ($proj + ".projectionCenterZ") $zm;
setAttr ($proj + ".projectionWidth") 2;
setAttr ($proj + ".projectionHeight") 2;
setAttr ($proj + ".imageScaleU") -1;
}
if(size($nzFace) > 0){
select -r $nzFace;
string $nzProjection[] = `polyProjection -ch 1 -type Planar -ibd off -md z -pcx 1 -pcy 1 -pcz 1`;
$proj = $nzProjection[0];
setAttr ($proj + ".projectionCenterX") $xm;
setAttr ($proj + ".projectionCenterY") $ym;
setAttr ($proj + ".projectionCenterZ") $zm;
setAttr ($proj + ".projectionWidth") 2;
setAttr ($proj + ".projectionHeight") 2;
setAttr ($proj + ".imageScaleU") -1;
}

select -r $selection ;
print("Done!\n");
}