@Stephen Marsh I think the reason you got reversed order is that I had taken out the sort order for the layer for the horizontal. Here's a script that will do both vertical and horizontal. I also added your suggestions.
#target photoshop
app.displayDialogs = DialogModes.NO;
if (app.documents.length>0){
var dlg = new Window('dialog','Space Objects');
var docRef = activeDocument
var shapeSizeTotal = 0
var selLay = getSelectedLayersIdx()
var docLayers = new Array()
var isHor = true;
var amt;
if (selLay.length>2){runProg()}
else{alert('There needs to be 3 or more layers selected')}
}
else{alert('There are no open Documents')};
function runProg(){
var run = true;
dlg.hor = dlg.add('radiobutton',undefined,'Space Horizontal');
dlg.hor.value = true;
dlg.vert = dlg.add('radiobutton',undefined,'Space Vertical');
dlg.infoGp = dlg.add('group');
dlg.sTxt = dlg.infoGp.add('statictext',undefined,'Enter the distance between the objects (' + app.preferences.rulerUnits.toString().replace(/Units\./, '') + '):');
dlg.eTxt = dlg.infoGp.add('editnumber',undefined, '');
dlg.eTxt.size = [100,20]
dlg.buttonGp = dlg.add('group');
dlg.buttonGp.okay = dlg.buttonGp.add('button',undefined,'Okay');
dlg.buttonGp.okay.onClick = function(){
dlg.close();
if(dlg.hor.value){isHor = true}
else {isHor = false};
amt = dlg.eTxt.value
}
dlg.buttonGp.cancel = dlg.buttonGp.add('button',undefined,'cancel');
dlg.buttonGp.cancel.onClick = function(){
dlg.close();
run = false;
}
dlg.eTxt.active = true;
dlg.show()
if(run){
makeActiveByIndex(selLay, true)
docLayers.sort(compare)
for (var i=0;i<docLayers.length-1;i++){
if(isHor){
var deltaM = amt-(docLayers[i+1][1].bounds[0].value-docLayers[i][1].bounds[2].value)
docLayers[i+1][1].translate (deltaM, 0)
$.writeln(deltaM)
}
else{
var deltaM = amt-(docLayers[i+1][1].bounds[1].value-docLayers[i][1].bounds[3].value)
docLayers[i+1][1].translate (0, deltaM)
}
};
makeSingleActiveByIndex(selLay[0], true);//select only one layer to make the translations
//docRef.activeLayer = docRef.layers[docRef.layers.length-1]
makeActiveByIndex(selLay, true);//reset selection to all layers
}//end if to run
};//end function runProg
function compare(a,b){return a-b}
function getSelectedLayersIdx() {
var selectedLayers = new Array;
var ref = new ActionReference();
ref.putEnumerated(charIDToTypeID("Dcmn"), charIDToTypeID("Ordn"), charIDToTypeID("Trgt"));
var desc = executeActionGet(ref);
if (desc.hasKey(stringIDToTypeID("targetLayers"))) {
desc = desc.getList(stringIDToTypeID("targetLayers"));
var c = desc.count
var selectedLayers = new Array();
for (var i = 0; i < c; i++) {
try {
docRef.backgroundLayer;
selectedLayers.push(desc.getReference(i).getIndex());
} catch (e) {
selectedLayers.push(desc.getReference(i).getIndex() + 1);
}
}
} else {
var ref = new ActionReference();
ref.putProperty(charIDToTypeID("Prpr"), charIDToTypeID("ItmI"));
ref.putEnumerated(charIDToTypeID("Lyr "), charIDToTypeID("Ordn"), charIDToTypeID("Trgt"));
try {
docRef.backgroundLayer;
selectedLayers.push(executeActionGet(ref).getInteger(charIDToTypeID("ItmI")) - 1);
} catch (e) {
selectedLayers.push(executeActionGet(ref).getInteger(charIDToTypeID("ItmI")));
}
}
return selectedLayers;
}
function makeActiveByIndex(idx, visible) {
for (var i = 0; i < idx.length; i++) {
var desc = new ActionDescriptor();
var ref = new ActionReference();
ref.putIndex(charIDToTypeID("Lyr "), idx[i])
desc.putReference(charIDToTypeID("null"), ref);
if (i > 0) {
var idselectionModifier = stringIDToTypeID("selectionModifier");
var idselectionModifierType = stringIDToTypeID("selectionModifierType");
var idaddToSelection = stringIDToTypeID("addToSelection");
desc.putEnumerated(idselectionModifier, idselectionModifierType, idaddToSelection);
}
desc.putBoolean(charIDToTypeID("MkVs"), visible);
executeAction(charIDToTypeID("slct"), desc, DialogModes.NO);
if(checkLayerKind(docRef.activeLayer)){
if(isHor){var layerLeft = new Array(docRef.activeLayer.bounds[0],docRef.activeLayer)}
else{var layerLeft = new Array(docRef.activeLayer.bounds[1],docRef.activeLayer)}
docLayers.push(layerLeft)
}
}
};// end makeActiveByIndex
function makeSingleActiveByIndex(idx, visible) {
var desc = new ActionDescriptor();
var ref = new ActionReference();
ref.putIndex(charIDToTypeID("Lyr "), idx)
desc.putReference(charIDToTypeID("null"), ref);
/*if (i > 0) {
var idselectionModifier = stringIDToTypeID("selectionModifier");
var idselectionModifierType = stringIDToTypeID("selectionModifierType");
var idaddToSelection = stringIDToTypeID("addToSelection");
desc.putEnumerated(idselectionModifier, idselectionModifierType, idaddToSelection);
}*/
desc.putBoolean(charIDToTypeID("MkVs"), visible);
executeAction(charIDToTypeID("slct"), desc, DialogModes.NO);
};//end makeSingleActiveByIndex
function checkLayerKind(lay){
if(lay.kind == LayerKind.NORMAL || lay.kind == LayerKind.TEXT || lay.kind == LayerKind.SOLIDFILL){return true}
else{return false}
};//end checkLayerKind
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