Photoshop Script - Generate Grid Guides

ps-grid-generator.jsx

//Modified version of sprite-grid.jsx by Filip Van Tendeloo
//Fixed for earlier versions of Photoshop based on guideLine function from
//http://www.ps-scripts.com/bb/viewtopic.php?f=9&t=3493&start=0

//None of this code is mine

// check for document
if(app.documents.length > 0){  
	// get active document
	var psDoc = app.activeDocument; 
	
	// get user input on column count
	var colWidth = parseInt( prompt("Column size?", 5) );  

	var docWidth = psDoc.width;  
	
	// determine number of columns
	var colCount = docWidth / colWidth; 
	
	// create vertical guidelines
	for(i = 0; i <= colCount; ++i){  
		guideLine(i * colWidth, 'Vrtc');
	}  
	
	var docHeight = psDoc.height;

	// determine number of rows
	var rowCount = docHeight / colWidth; 
	
	// create horizontal rows
	for(i = 0; i <= rowCount; ++i){  
		//psDoc.guides.add(Direction.HORIZONTAL, i * colWidth);  
		guideLine(i * colWidth, 'Hrzn');
	}  	
} 


function guideLine(position, type) { 
   var id296 = charIDToTypeID( "Mk  " ); 
       var desc50 = new ActionDescriptor(); 
       var id297 = charIDToTypeID( "Nw  " ); 
           var desc51 = new ActionDescriptor(); 
           var id298 = charIDToTypeID( "Pstn" ); 
           var id299 = charIDToTypeID( "#Pxl" ); 
           desc51.putUnitDouble( id298, id299, position ); 
           var id300 = charIDToTypeID( "Ornt" ); 
           var id301 = charIDToTypeID( "Ornt" ); 
           var id302 = charIDToTypeID( type ); 
          desc51.putEnumerated( id300, id301, id302 ); 
          var id303 = charIDToTypeID( "Gd  " ); 
       desc50.putObject( id297, id303, desc51 ); 
   executeAction( id296, desc50, DialogModes.NO ); 
};