Adobe AfterEffects script (JSX):Z_interval

Z_interval_v20150716.jsx

/*
Adobe AfterEffects Script (JSX)
	Z_interval
		v20150716
*/

////////////////////////////////variable declaration////////////////////////////////
var thisComp = app.project.activeItem;
var thisLayer = null;
var temp = null;
var w, txtbox,chkbox,btnOK,btnCancel;
var thisW,thisH,newCamera;


////////////////////////////////body////////////////////////////////
var dlg = new showDialog;
var result = dlg.show("100");

if ( result[0] !="" && (isNaN(result[0]) == false)){
    zInterval(result[0]);
    if (result[1]){
        createCam();
    };
};


////////////////////////////////functions////////////////////////////////
// 01:create dialog
function showDialog()
{
    
    w = new Window("dialog","Button Test",[0,0,150,120]);
    w.center();
    txtbox = w.add("edittext",[10,10,140,40]);
    chkbox = w.add("checkbox",[10,52,140,80],"Create Camera");
    btnOK = w.add("button",[10,80,68,110],"OK",{name:'ok'});
    btnCancel = w.add("button",[72,80,140,110],"cancel",{name:'cancel'});
    txtbox.helpTip = "offset Z amount (default:100pixel)";
	this.show = function(def)
	{
		txtbox.text = def;
		if ( w.show() < 2){
			return [txtbox.text,chkbox.value];
		}else{
			return "";
		}
	}
};
//02: offset layer
function zInterval(val)
{    
    app.beginUndoGroup("Z_Interval");
    
    if(thisComp instanceof CompItem){        
        for( i = 1 ; i <= thisComp.layers.length ; i++){
            thisLayer = thisComp.layers[i];  
            thisLayer.threeDLayer = true;
            temp = thisLayer.Position.value;
            temp[2] = val * (i - 1);
            thisLayer.Position.setValue(temp);
            };        
    }else {
        alert('select composition');
    };

    app.endUndoGroup();
};
//03:create camera
function createCam()
{
    app.beginUndoGroup("Create Camera");
    
    thisW = thisComp.width /2 ;
    thisH = thisComp.height /2 ;
    newCamera = thisComp.layers.addCamera("camera", [thisW,thisH]);
    newCamera.Position.setValue([thisW,thisH,newCamera.Position.value[2]]);
    
    app.endUndoGroup();
};