Sprite2Sheet script

SpriteToSheet.jsx

// This script exports animated sprite into a spritesheet to a document copy.
// Made by: Yanrishatum <yanrishatum@gmail.com> | http://yanrishatum.ru
// Script version: 1.1.0
// 08.02.2016: Initial release.
// 10.02.2016: Added options.
//
// License info:
// This is free and unencumbered software released into the public domain.
//
// Anyone is free to copy, modify, publish, use, compile, sell, or
// distribute this software, either in source code form or as a compiled
// binary, for any purpose, commercial or non-commercial, and by any
// means.
//
// In jurisdictions that recognize copyright laws, the author or authors
// of this software dedicate any and all copyright interest in the
// software to the public domain. We make this dedication for the benefit
// of the public at large and to the detriment of our heirs and
// successors. We intend this dedication to be an overt act of
// relinquishment in perpetuity of all present and future rights to this
// software under copyright law.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
// IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
// OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
// OTHER DEALINGS IN THE SOFTWARE.
//
// For more information, please refer to <http://unlicense.org>
//

// Also fuck GPL, it's about "not free - not for you" and not about sharing with people.
#target photoshop

//{ Utils

var ID_SELECT = charIDToTypeID("slct");
var ID_DUPLICATE = charIDToTypeID("Dplc");
var ID_DELETE = charIDToTypeID("Dlt ");
var ID_SET = charIDToTypeID("setd");
var ID_COPY_ALL = charIDToTypeID("CpyM");
var ID_PASTE = charIDToTypeID("past");
var ID_MOVE = charIDToTypeID("move");

var ID_NULL = charIDToTypeID("null");
var ID_ORDN = charIDToTypeID("Ordn"); // ?
var ID_T = charIDToTypeID("T   ");
var ID_CHANNEL = charIDToTypeID("Chnl");
var ID_HORIZONTAL = charIDToTypeID("Hrzn");
var ID_VERTICAL = charIDToTypeID("Vrtc");

var ID_ANIMATION_FRAME = stringIDToTypeID("animationFrameClass");
var ID_ANIMATION_FRAME_DELAY = stringIDToTypeID("animationFrameDelay");
var ID_TRGT = charIDToTypeID("Trgt"); // ?
var ID_SELECTION = charIDToTypeID("fsel");
var ID_ALL = charIDToTypeID("Al  ");
var ID_NONE = charIDToTypeID("None");
var ID_PIXEL = charIDToTypeID("#Pxl");

// Rectangle
var ID_RECT = charIDToTypeID("Rctn");
var ID_TOP = charIDToTypeID("Top ");
var ID_LEFT = charIDToTypeID("Left");
var ID_BOTTOM = charIDToTypeID("Btom");
var ID_RIGHT = charIDToTypeID("Rght");

function setFrame(frame)
{
  var desc = new ActionDescriptor();
  var ref = new ActionReference();
  ref.putIndex(ID_ANIMATION_FRAME, frame+1); // Because PS frame indexing starts from 1.
  desc.putReference(ID_NULL, ref);
  executeAction(ID_SELECT, desc, DialogModes.NO);
}

function createFrame()
{
  var desc = new ActionDescriptor();
  var ref = new ActionReference();
  ref.putEnumerated(ID_ANIMATION_FRAME, ID_ORDN, ID_TRGT);
  desc.putReference(ID_NULL, ref);
  executeAction(ID_DUPLICATE, desc, DialogModes.No);
}

function removeFrame(frame)
{
  if (frame !== undefined) setFrame(frame);
  
  var desc = new ActionDescriptor();
  var ref = new ActionReference();
  ref.putEnumerated(ID_ANIMATION_FRAME, ID_ORDN, ID_TRGT);
  desc.putReference(ID_NULL, ref);
  executeAction(ID_DELETE, desc, DialogModes.NO);
}

function setDelay(delay, frame)
{
  if (frame !== undefined) setFrame(frame);
  var desc = new ActionDescriptor();
  var frameRef = new ActionReference();
  frameRef.putEnumerated(ID_ANIMATION_FRAME, ID_ORDN, ID_TRGT);
  desc.putReference(ID_NULL, frameRef);
  var delayDesc = new ActionDescriptor();
  delayDesc.putDouble(ID_ANIMATION_FRAME_DELAY, delay);
  desc.putObject(ID_T, ID_ANIMATION_FRAME, delayDesc);
  executeAction(ID_SET, desc, DialogModes.NO);
}

var METHOD_AUTO = stringIDToTypeID( "animationFrameReplaceAutoDispose" );
function setDisposeMethod(method, frame)
{
  if (frame !== undefined) setFrame(frame);
  var desc = new ActionDescriptor();
  var frameRef = new ActionReference();
  frameRef.putEnumerated(ID_ANIMATION_FRAME, ID_ORDN, ID_TRGT);
  desc.putReference(ID_NULL, frameRef);
  var dispose = new ActionDescriptor();
  dispose.putEnumerated(stringIDToTypeID( "animationFrameReplace"), stringIDToTypeID( "animationFrameReplaceType" ), method);
  desc.putObject(ID_T, ID_ANIMATION_FRAME, dispose);
  executeAction(ID_SET, desc, DialogModes.NO);
}

function selectAll()
{
  var desc = new ActionDescriptor();
  var ref = new ActionReference();
  ref.putProperty(ID_CHANNEL, ID_SELECTION);
  desc.putReference(ID_NULL, ref);
  desc.putEnumerated(ID_T, ID_ORDN, ID_ALL);
  executeAction(ID_SET, desc, DialogModes.NO);
}

function deselect()
{
  var desc = new ActionDescriptor();
  var ref = new ActionReference();
  ref.putProperty(ID_CHANNEL, ID_SELECTION);
  desc.putReference(ID_NULL, ref);
  desc.putEnumerated(ID_T, ID_ORDN, ID_NONE);
  executeAction(ID_SET, desc, DialogModes.NO);
}

function copyAll()
{
  executeAction(ID_COPY_ALL, undefined, DialogModes.NO);
}

function paste()
{
  var desc = new ActionDescriptor();
  desc.putEnumerated(charIDToTypeID( "AntA" ), charIDToTypeID( "Annt" ), charIDToTypeID( "Anno" ));
  desc.putBoolean(stringIDToTypeID("inPlace"), true);
  executeAction(ID_PASTE, desc, DialogModes.NO);
}

function offsetLayer(x, y)
{
  var desc = new ActionDescriptor();
  var ref = new ActionReference();
  ref.putEnumerated(charIDToTypeID("Lyr "), ID_ORDN, ID_TRGT);
  desc.putReference(ID_NULL, ref);
  var point = new ActionDescriptor();
  point.putUnitDouble(ID_HORIZONTAL, ID_PIXEL, x);
  point.putUnitDouble(ID_VERTICAL, ID_PIXEL, y);
  desc.putObject(ID_T, charIDToTypeID("Ofst"), point);
  executeAction(ID_MOVE, desc, DialogModes.NO );
}

function getRect(x, y, w, h)
{
  var rect = new ActionDescriptor();
  rect.putUnitDouble(ID_TOP, ID_PIXEL, y);
  rect.putUnitDouble(ID_LEFT, ID_PIXEL, x);
  rect.putUnitDouble(ID_BOTTOM, ID_PIXEL, y+h);
  rect.putUnitDouble(ID_RIGHT, ID_PIXEL, x+w);
  return rect;
}

function selectArea(x, y, w, h)
{
  var desc = new ActionDescriptor();
  var ref = new ActionReference();
  ref.putProperty(ID_CHANNEL, ID_SELECTION);
  desc.putReference(ID_NULL, ref);
  desc.putObject(ID_T, ID_RECT, getRect(x, y, w, h));
  executeAction(ID_SET, desc, DialogModes.NO);
}

var ID_CANVAS = charIDToTypeID("CnvS");
var ID_WIDTH = charIDToTypeID("Wdth");
var ID_HEIGHT = charIDToTypeID("Hght");
var ID_HORIZONTAL_ENUM = charIDToTypeID("HrzL");
var ID_VERTICAL_ENUM = charIDToTypeID("VrtL");
function resizeCanvas(w, h)
{
  var desc = new ActionDescriptor();
  desc.putUnitDouble(ID_WIDTH, ID_PIXEL, w);
  desc.putUnitDouble(ID_HEIGHT, ID_PIXEL, h);
  desc.putEnumerated(ID_HORIZONTAL, ID_HORIZONTAL_ENUM, ID_LEFT);
  desc.putEnumerated(ID_VERTICAL, ID_VERTICAL_ENUM, ID_TOP);
  executeAction(ID_CANVAS, desc, DialogModes.NO);
}

function cloneDocument()
{
  var desc = new ActionDescriptor();
  var ref = new ActionReference();
  ref.putEnumerated(charIDToTypeID( "Dcmn" ), charIDToTypeID( "Ordn" ), charIDToTypeID( "Frst" ));
  desc.putReference(ID_NULL, ref);
  executeAction(ID_DUPLICATE, desc, DialogModes.NO);
}

function lpad(val, pad, count)
{
  val = val + "";
  while (val.length < count) val = pad + val;
  return val;
}

//}

//{ GUI
var wnd;

function estimateSize(e)
{
  var verticalAlignment = wnd.verticalGeneration.value;
  var length = frameCount;
  var splits = parseInt(wnd.splits.text);
  if (isNaN(splits))
  {
    splits = 1;
    wnd.splitsError.text = "Use only numerical values for split amount (minimum 1)";
  }
  else if (splits < 0)
  {
    splits = 1;
    wnd.splitsError.text = "Split amount should greater than 0";
  }
  else if (splits >= frameCount)
  {
    verticalAlignment = !verticalAlignment;
    splits = 1;
    wnd.splitsError.text = "Split amount should be less than frame count";
  }
  else wnd.splitsError.text = "";
  
  if (verticalAlignment)
  {
    length = Math.ceil(length / splits) * frameHeight;
    splits *= frameWidth;
    wnd.sizeLabel.text = "Spritesheet size: " + splits + "x" + length;
    return { w: splits, h: length };
  }
  else
  {
    length = Math.ceil(length / splits) * frameWidth;
    splits *= frameHeight;
    wnd.sizeLabel.text = "Spritesheet size: " + length + "x" + splits;
    return { w: length, h:splits };
  }
}

function showGUI()
{
  wnd = new Window("dialog", "Sprite To Sheet");
  var container = wnd.add('group', undefined);
  container.orientation = "column";
  container.alignment = "left";
  
  wnd.horizontalGeneration = container.add("radiobutton", undefined, "Horizontal alignment");
  wnd.horizontalGeneration.value = true;
  wnd.horizontalGeneration.onClick = estimateSize;
  wnd.verticalGeneration = container.add("radiobutton", undefined, "Vertical alignment");
  wnd.verticalGeneration.onClick = estimateSize;
  wnd.splitGroup = container.add("group", undefined);
  wnd.splitGroup.orientation = "row";
  wnd.splitGroup.alignment = "left";
  wnd.splitLabel = wnd.splitGroup.add("statictext", undefined, "Splits:");
  wnd.splits = wnd.splitGroup.add("edittext", undefined, "1", { enterKeySignalsOnChange:true });
  wnd.splits.onChange = estimateSize;
  wnd.splits.onChanging = estimateSize;
  wnd.splits.preferredSize = [100, 20];
  wnd.splitsError = container.add("statictext", undefined, "Use only numerical values for split amount (minimum 1)");
  wnd.sizeLabel = container.add("statictext", undefined, "xxxx-xxxx");
  wnd.buttons = wnd.add("group");
  wnd.buttons.generate = wnd.buttons.add("button", undefined, "OK");
  wnd.buttons.cancel = wnd.buttons.add("button", undefined, "Cancel");
  
  estimateSize();
  
  var result = wnd.show();
  if (result == 1)
  {
    var size = estimateSize();
    executeProgram(size.w, size.h, wnd.verticalGeneration.value);
  }
  return;
}

//}

var doc = app.activeDocument;
var oldRulerUnits = app.preferences.rulerUnits;
app.preferences.rulerUnits = Units.PIXELS;
var frameWidth = doc.width|0;
var frameHeight = doc.height|0;

var frameCount = 0;
while(true)
{
  try
  {
    setFrame(frameCount);
    frameCount++;
  }
  catch(e)
  {
    break;
  }
}
if (frameCount == 0) throw("There is no frames");
showGUI();

function executeProgram(width, height, vertical)
{
  cloneDocument();
  doc = app.activeDocument;
  // resizeCanvas(frameCount * frameWidth, frameHeight);
  resizeCanvas(width, height);
  
  setFrame(0);
  var lrs = [];
  var x = 0;
  var y = 0;
  for (var i = 0; i < frameCount; i++)
  {
    selectArea(0, 0, frameWidth, frameHeight);
    copyAll();
    paste();
    offsetLayer(x, y);
    if (vertical)
    {
      y += frameHeight;
      if (y == height) { y = 0; x += frameWidth; }
    }
    else
    {
      x += frameWidth;
      if (x == width) { x = 0; y += frameHeight; }
    }
    // offsetLayer(i * frameWidth, 0);
    if (i + 1 != frameCount) removeFrame();
    var layer = doc.activeLayer;
    layer.name = "sprite_frame_" + lpad(i, "0", frameCount.toString().length);
    layer.visible = false;
    lrs.push(layer);
  }
  setFrame(0);
  setDelay(0);
  setDisposeMethod(METHOD_AUTO);

  for (var i = 0; i < doc.artLayers.length; i++)
  {
    var found = false;
    for (var j = 0; j < lrs.length; j++)
    {
      if (doc.artLayers[i] == lrs[j])
      {
        found = true;
        break;
      }
    }
    if (!found)
    {
      doc.artLayers[i].remove();
      i--;
    }
    else doc.artLayers[i].visible = true;
  }
}

app.preferences.rulerUnits = oldRulerUnits;