Convert remaining modules

2024-11-25 08:38:30 -05:00 · 2016-01-21 15:32:41 -05:00 · 2016-01-21 15:32:41 -05:00 · 1c32ecf0a5
commit 1c32ecf0a5
parent bf07d98ccd
9 changed files with 4628 additions and 4507 deletions
--- a/src/editor/blocks/Block.js
+++ b/src/editor/blocks/Block.js
@ -1,4 +1,10 @@
-var Block = function (spec, isPalette, scale) {
+import BlockSpecs from './BlockSpecs';
 import BlockArg from './BlockArg';
 import ScratchJr from '../ScratchJr';
 import {setProps, setCanvasSize, scaleMultiplier} from '../../utils/lib';
 export default class Block {
    constructor (spec, isPalette, scale) {
        this.div = document.createElement('div');
        // Top-level block parent shouldn't accept pointer events
@ -17,7 +23,8 @@ var Block = function (spec, isPalette, scale) {
            position: 'absolute',
            left: '0px',
            top: '0px',
-        webkitTransform: 'translate(' + (-this.blockshape.width / 2) + 'px, ' + (-this.blockshape.height / 2) + 'px) ' +
+            webkitTransform: 'translate(' + (-this.blockshape.width / 2) + 'px, ' +
                (-this.blockshape.height / 2) + 'px) ' +
                'scale(' + (1 / window.devicePixelRatio) + ') ' +
                'translate(' + (this.blockshape.width / 2) + 'px, ' + (this.blockshape.height / 2) + 'px)',
            pointerEvents: 'all'
@ -31,9 +38,9 @@ var Block = function (spec, isPalette, scale) {
        }
        this.createArgument();
        this.div.owner = this;
-};
+    }
-Block.prototype.getWidth = function () {
+    getWidth () {
        if (this.blocktype == 'repeat') {
            return 176;
        }
@ -44,16 +51,16 @@ Block.prototype.getWidth = function () {
            return 84;
        }
        return 76;
-};
+    }
-Block.prototype.getHeight = function () {
+    getHeight () {
        if (this.blocktype == 'repeat') {
            return 82;
        }
        return 66;
-};
+    }
-Block.prototype.setBlockshapeFromSpecs = function (spec, isPalette, scale) {
+    setBlockshapeFromSpecs (spec, isPalette, scale) {
        this.spec = spec;
        this.isReporter = (spec[1] == 'reporter');
        this.blocktype = spec[0];
@ -83,9 +90,9 @@ Block.prototype.setBlockshapeFromSpecs = function (spec, isPalette, scale) {
        this.hrubberband = 0;
        this.vrubberband = 0;
        this.done = false;
-};
+    }
-Block.prototype.addShadow = function () {
+    addShadow () {
        this.shadow = document.createElement('canvas');
        this.div.appendChild(this.shadow);
        setProps(this.shadow.style, {
@ -94,7 +101,8 @@ Block.prototype.addShadow = function () {
            top: '4px',
            opacity: this.inpalette ? Settings.paletteBlockShadowOpacity : 1,
            visibility: 'hidden',
-        webkitTransform: 'translate(' + (-this.blockshape.width / 2) + 'px, ' + (-this.blockshape.height / 2) + 'px) ' +
+            webkitTransform: 'translate(' + (-this.blockshape.width / 2) + 'px, ' +
                (-this.blockshape.height / 2) + 'px) ' +
                'scale(' + (1 / window.devicePixelRatio) + ') ' +
                'translate(' + (this.blockshape.width / 2) + 'px, ' + (this.blockshape.height / 2) + 'px)',
            pointerEvents: 'all'
@ -108,23 +116,24 @@ Block.prototype.addShadow = function () {
        if (!img.complete) {
            img.onload = function () {
                ctx.drawImage(img, 0, 0, img.width, img.height, 0, 0,
-                img.width * this.scale * window.devicePixelRatio, img.height * this.scale * window.devicePixelRatio);
+                    img.width * this.scale * window.devicePixelRatio,
                    img.height * this.scale * window.devicePixelRatio);
            };
        } else {
            ctx.drawImage(img, 0, 0, img.width, img.height, 0, 0,
                img.width * this.scale * window.devicePixelRatio, img.height * this.scale * window.devicePixelRatio);
        }
-};
+    }
-Block.prototype.lift = function () {
+    lift () {
        this.shadow.style.visibility = 'visible';
-};
+    }
-Block.prototype.drop = function () {
+    drop () {
        this.shadow.style.visibility = 'hidden';
-};
+    }
-Block.prototype.addHighlight = function () {
+    addHighlight () {
        var img = this.spec[5];
        if (!img) {
            return;
@ -137,7 +146,8 @@ Block.prototype.addHighlight = function () {
            left: '0px',
            top: '0px',
            visibility: 'hidden',
-        webkitTransform: 'translate(' + (-this.blockshape.width / 2) + 'px, ' + (-this.blockshape.height / 2) + 'px) ' +
+            webkitTransform: 'translate(' + (-this.blockshape.width / 2) +
                'px, ' + (-this.blockshape.height / 2) + 'px) ' +
                'scale(' + (1 / window.devicePixelRatio) + ') ' +
                'translate(' + (this.blockshape.width / 2) + 'px, ' + (this.blockshape.height / 2) + 'px)',
            pointerEvents: 'all'
@ -146,15 +156,16 @@ Block.prototype.addHighlight = function () {
        if (!img.complete) {
            img.onload = function () {
                ctx.drawImage(img, 0, 0, img.width, img.height, 0, 0,
-                img.width * this.scale * window.devicePixelRatio, img.height * this.scale * window.devicePixelRatio);
+                    img.width * this.scale * window.devicePixelRatio,
                    img.height * this.scale * window.devicePixelRatio);
            };
        } else {
            ctx.drawImage(img, 0, 0, img.width, img.height, 0, 0,
                img.width * this.scale * window.devicePixelRatio, img.height * this.scale * window.devicePixelRatio);
        }
-};
+    }
-Block.prototype.drawBlock = function () {
+    drawBlock () {
        var cnv = this.blockshape;
        var ctx = this.blockshape.getContext('2d');
        ctx.clearRect(0, 0, cnv.width, cnv.height);
@ -166,9 +177,9 @@ Block.prototype.drawBlock = function () {
        } else {
            this.drawBlockType();
        }
-};
+    }
-Block.prototype.drawBlockType = function () {
+    drawBlockType () {
        var ctx = this.blockshape.getContext('2d');
        ctx.drawImage(this.image, 0, 0, this.image.width, this.image.height, 0, 0,
            this.image.width * this.scale * window.devicePixelRatio,
@ -181,7 +192,8 @@ Block.prototype.drawBlockType = function () {
            position: 'absolute',
            left: '0px',
            top: '0px',
-        webkitTransform: 'translate(' + (-this.blockshape.width / 2) + 'px, ' + (-this.blockshape.height / 2) + 'px) ' +
+            webkitTransform: 'translate(' + (-this.blockshape.width / 2) + 'px, ' +
                (-this.blockshape.height / 2) + 'px) ' +
                'scale(' + (1 / window.devicePixelRatio) + ') ' +
                'translate(' + (this.blockshape.width / 2) + 'px, ' + (this.blockshape.height / 2) + 'px)',
            pointerEvents: 'all'
@ -190,15 +202,15 @@ Block.prototype.drawBlockType = function () {
            this.drawIcon();
        }
        this.done = true;
-};
+    }
-Block.prototype.updateBlock = function () {
+    updateBlock () {
        if (this.arg && this.arg.argType == 'p') {
            this.arg.updateIcon();
        }
-};
+    }
-Block.prototype.highlight = function () {
+    highlight () {
        if (this.blocktype.indexOf('caret') > -1) {
            return;
        }
@ -209,16 +221,16 @@ Block.prototype.highlight = function () {
            return;
        }
        this.shine.style.visibility = 'visible';
-};
+    }
-Block.prototype.unhighlight = function () {
+    unhighlight () {
        if (this.blocktype.indexOf('caret') > -1) {
            return;
        }
        this.shine.style.visibility = 'hidden';
-};
+    }
-Block.prototype.drawIcon = function () {
+    drawIcon () {
        var dx = 0;
        var dy = 0;
        var ctx = this.blockicon.getContext('2d');
@ -240,9 +252,9 @@ Block.prototype.drawIcon = function () {
            break;
        }
        this.drawMyIcon(ctx, dx, dy);
-};
+    }
-Block.prototype.drawMyIcon = function (ctx, dx, dy) {
+    drawMyIcon (ctx, dx, dy) {
        var me = this;
        var icon = this.icon;
        if (!icon.complete) {
@ -256,23 +268,23 @@ Block.prototype.drawMyIcon = function (ctx, dx, dy) {
                icon.width * me.scale * window.devicePixelRatio,
                icon.height * me.scale * window.devicePixelRatio);
        }
-};
+    }
-Block.prototype.createArgument = function () {
+    createArgument () {
        if (this.spec[4] == null) {
            return;
        }
        this.arg = new BlockArg(this);
-};
+    }
-Block.prototype.getArgValue = function () {
+    getArgValue () {
        if (this.arg == null) {
            return null;
        }
        return this.arg.argValue;
-};
+    }
-Block.prototype.getSoundName = function (list) {
+    getSoundName (list) {
        var val = this.arg.argValue;
        if (Number(val).toString() == 'NaN') {
            return val;
@ -281,15 +293,15 @@ Block.prototype.getSoundName = function (list) {
            return list[0];
        }
        return list[val];
-};
+    }
-Block.prototype.update = function (spr) {
+    update (spr) {
        if (this.arg) {
            this.arg.update(spr);
        }
-};
+    }
-Block.prototype.setSound = function (bt) {
+    setSound (bt) {
        var p = this.arg.div;
        p.parentNode.removeChild(p);
        var icon = this.blockicon;
@ -299,9 +311,9 @@ Block.prototype.setSound = function (bt) {
        this.setBlockshapeFromSpecs(specs);
        this.drawBlock();
        this.createArgument();
-};
+    }
-Block.prototype.duplicateBlock = function (dx, dy, spr) {
+    duplicateBlock (dx, dy, spr) {
        var op = this.blocktype;
        var specs = BlockSpecs.defs[op];
        specs[4] = this.getArgValue();
@ -314,9 +326,9 @@ Block.prototype.duplicateBlock = function (dx, dy, spr) {
        bbx.moveBlock(dx, dy);
        bbx.update(spr);
        return bbx;
-};
+    }
-Block.prototype.resolveDocks = function () {
+    resolveDocks () {
        var w = this.getWidth();
        var h = this.getHeight();
        if (this.aStart) {
@ -336,17 +348,17 @@ Block.prototype.resolveDocks = function () {
        } else {
            return [['flow', true, 0, h / 2], ['flow', false, w - this.notchSize(), h / 2]];
        }
-};
+    }
-Block.prototype.notchSize = function () {
+    notchSize () {
        return 11;
-};
+    }
    //////////////////////////////////////////
    // Connect / Disconnect
    /////////////////////////////////////////
-Block.prototype.connectBlock = function (myn, you, yourn) {
+    connectBlock (myn, you, yourn) {
        if (this.isConnectedAfterFirst(myn, you, yourn)) {
            return;
        }
@ -360,24 +372,24 @@ Block.prototype.connectBlock = function (myn, you, yourn) {
            last.next = theend;
            theend.prev = last;
        }
-};
+    }
-Block.prototype.getMyDock = function (dockn) {
+    getMyDock (dockn) {
        var myprops = this.cShape ? ['prev', 'inside', 'next'] : ['prev', 'next'];
        return this[myprops[dockn]];
-};
+    }
-Block.prototype.setMyDock = function (dockn, you) {
+    setMyDock (dockn, you) {
        var myprops = this.cShape ? ['prev', 'inside', 'next'] : ['prev', 'next'];
        this[myprops[dockn]] = you;
-};
+    }
-Block.prototype.getMyDockNum = function (you) {
+    getMyDockNum (you) {
        var connections = this.cShape ? [this.prev, this.inside, this.next] : [this.prev, this.next];
        return connections.indexOf(you);
-};
+    }
-Block.prototype.isConnectedAfterFirst = function (myn, you) {
+    isConnectedAfterFirst (myn, you) {
        if (myn == 0) {
            return false;
        }
@ -392,23 +404,23 @@ Block.prototype.isConnectedAfterFirst = function (myn, you) {
        var thefirst = this.findFirst();
        thefirst.connectBlock(0, prev, n);
        return true;
-};
+    }
-Block.prototype.findLast = function () {
+    findLast () {
        if (this.next == null) {
            return this;
        }
        return this.next.findLast();
-};
+    }
-Block.prototype.findFirst = function () {
+    findFirst () {
        if (this.prev == null) {
            return this;
        }
        return this.prev.findFirst();
-};
+    }
-Block.prototype.connectLast = function (myn, you, yourn) {
+    connectLast (myn, you, yourn) {
        if (myn != 0) {
            return;
        }
@ -436,9 +448,9 @@ Block.prototype.connectLast = function (myn, you, yourn) {
            }
            yourtail.prev = mylast;
        }
-};
+    }
-Block.prototype.detachBlock = function () {
+    detachBlock () {
        var you = this.prev;
        if (you == null) {
            return;
@ -449,17 +461,17 @@ Block.prototype.detachBlock = function () {
        } else {
            you.next = null;
        }
-};
+    }
    //////////////////////////////////////////
    // Move
    /////////////////////////////////////////
-Block.prototype.moveBlock = function (dx, dy) {
+    moveBlock (dx, dy) {
        this.div.top = dy;
        this.div.left = dx;
        this.div.style.webkitTransform = 'translate3d(' + this.div.left + 'px,' + this.div.top + 'px, 0)';
-};
+    }
    /////////////////////////////////
@ -468,7 +480,7 @@ Block.prototype.moveBlock = function (dx, dy) {
    // Repeat size 176 by 82
-Block.prototype.redrawRepeat = function () {
+    redrawRepeat () {
        this.redrawShape(this.blockshape, this.image);
        if (this.blocktype.indexOf('caret') < 0) {
            this.redrawShape(this.shadow, this.shadowimg);
@ -483,9 +495,9 @@ Block.prototype.redrawRepeat = function () {
        this.arg.div.style.left = (this.blockshape.width / window.devicePixelRatio - 66 * this.scale) + 'px';
        this.blockicon.style.top = dy + 'px';
        this.arg.div.style.top = (this.blockshape.height / window.devicePixelRatio - 11 * this.scale) + 'px';
-};
+    }
-Block.prototype.redrawShape = function (cnv, img) {
+    redrawShape (cnv, img) {
        setCanvasSize(this.div,
            (92 + this.hrubberband + 84) * this.scale,
            (100 + this.vrubberband) * this.scale);
@ -516,4 +528,5 @@ Block.prototype.redrawShape = function (cnv, img) {
            45 * scaleAndRatio, 53 * scaleAndRatio);
        ctx.drawImage(img, 93, 29, img.width - 93, 53, 92 * scaleAndRatio + this.hrubberband * scaleAndRatio,
            29 * scaleAndRatio + this.vrubberband * scaleAndRatio, 83 * scaleAndRatio, 53 * scaleAndRatio);
-};
+    }
 }
--- a/src/editor/blocks/BlockArg.js
+++ b/src/editor/blocks/BlockArg.js
@ -1,3 +1,12 @@
 import ScratchJr from '../ScratchJr';
 import BlockSpecs from './BlockSpecs';
 import Menu from './Menu';
 import Undo from '../ui/Undo';
 import {setCanvasSize, setProps, writeText, scaleMultiplier,
    newHTML, newDiv, newCanvas, getStringSize, isTablet,
    newP, globalx, globaly} from '../../utils/lib';
 import Localization from '../../utils/Localization';
 /*
 Argument types
@ -9,7 +18,8 @@ r: number for recorded sound block
 p: page icons
 */
-var BlockArg = function (block) {
+export default class BlockArg {
    constructor (block) {
        this.daddy = block;
        this.type = 'blockarg';
        this.argType = block.spec[3];
@ -69,43 +79,43 @@ var BlockArg = function (block) {
        default:
            break;
        }
-};
+    }
-BlockArg.prototype.update = function () {
+    update () {
        if (this.argType == 'r') {
            this.div.childNodes[0].textContent = this.argValue;
        }
        if (this.arg && (this.argType == 'p')) {
            this.arg.updateIcon();
        }
-};
+    }
-BlockArg.prototype.getScreenPt = function () {
+    getScreenPt () {
        return {
            x: globalx(this.daddy.div),
            y: globaly(this.daddy.div)
        };
-};
+    }
-BlockArg.prototype.addNumArg = function () {
+    addNumArg () {
        var str = this.argValue.toString();
        if (this.daddy.inpalette) {
            return this.addLabel(str, false);
        } else {
            return this.addNumArgument(str);
        }
-};
+    }
-BlockArg.prototype.addTextArg = function () {
+    addTextArg () {
        var str = this.argValue.toString();
        if (this.daddy.inpalette) {
            return this.addLabel(str, true);
        } else {
            return this.addTextArgument(str, true);
        }
-};
+    }
-BlockArg.prototype.addLabel = function (str, isText) {
+    addLabel (str, isText) {
        var scale = this.daddy.scale;
        var dx = isText ? 8 : 16;
        var dy = 57;
@ -153,9 +163,9 @@ BlockArg.prototype.addLabel = function (str, isText) {
        writeText(ctx, font, '#77787b', str, h * window.devicePixelRatio - 3,
            Math.round((w * window.devicePixelRatio - lsize) / 2));
        return div;
-};
+    }
-BlockArg.prototype.addNumArgument = function (str) {
+    addNumArgument (str) {
        var div = newHTML('div', 'numfield', this.daddy.div);
        if (this.daddy.blocktype == 'repeat') {
            setProps(div.style, {
@ -168,53 +178,55 @@ BlockArg.prototype.addNumArgument = function (str) {
        ti.owner = this;
        ti.textContent = str;
        this.arg = div;
-    // Expand the parent div to incorporate the size of the button, else on Android 4.2 the bottom part of the button
+        // Expand the parent div to incorporate the size of the button,
        // else on Android 4.2 the bottom part of the button
        // will not be clickable.
        div.parentNode.height += 10 * window.devicePixelRatio;
        setCanvasSize(div.parentNode, div.parentNode.width, div.parentNode.height);
        return div;
-};
+    }
-BlockArg.prototype.addTextArgument = function (str) {
+    addTextArgument (str) {
        var div = newHTML('div', 'textfield', this.daddy.div);
        var ti = newHTML('h3', undefined, div);
        this.input = ti;
        ti.owner = this;
        ti.textContent = str;
        this.arg = div;
-    // Expand the parent div to incorporate the size of the button, else on Android 4.2 the bottom part of the button
+        // Expand the parent div to incorporate the size of the button,
        // else on Android 4.2 the bottom part of the button
        // will not be clickable.
        div.parentNode.height += 10 * window.devicePixelRatio;
        setCanvasSize(div.parentNode, div.parentNode.width, div.parentNode.height);
        return div;
-};
+    }
-BlockArg.prototype.setValue = function (val) {
+    setValue (val) {
        if (!this.input) {
            return;
        }
        this.argValue = val;
        this.input.textContent = val;
-};
+    }
-BlockArg.prototype.isText = function () {
+    isText () {
        return (this.argType != 'n');
-};
+    }
    /////////////////////////////////
    // Menu drop downs
    //////////////////////////////
-BlockArg.prototype.getIconFrom = function (key, list) {
+    getIconFrom (key, list) {
        for (var i = 0; i < list.length; i++) {
            if (list[i].indexOf(key) > -1) {
                return list[i];
            }
        }
        return list[0];
-};
+    }
-BlockArg.prototype.addImageMenu = function (fcn) {
+    addImageMenu (fcn) {
        this.drawChoice(this.daddy.blockicon);
        this.button = this.addPressButton();
        if (!this.daddy.inpalette) {
@ -235,9 +247,9 @@ BlockArg.prototype.addImageMenu = function (fcn) {
            setCanvasSize(this.button.parentNode, this.button.parentNode.width, this.button.parentNode.height);
        }
        return this.daddy.blockicon;
-};
+    }
-BlockArg.prototype.drawChoice = function (cnv) {
+    drawChoice (cnv) {
        var ctx = cnv.getContext('2d');
        ctx.clearRect(0, 0, cnv.width, cnv.height);
        var icon = BlockSpecs.getImageFrom('assets/blockicons/' + this.icon, 'svg');
@ -254,9 +266,9 @@ BlockArg.prototype.drawChoice = function (cnv) {
                icon.height * scale * window.devicePixelRatio);
        }
        return cnv;
-};
+    }
-BlockArg.prototype.addPressButton = function () {
+    addPressButton () {
        var scale = this.daddy.scale;
        var dx;
        if (this.daddy.inpalette) {
@ -283,9 +295,9 @@ BlockArg.prototype.addPressButton = function () {
            ctx.drawImage(img, 0, 0);
        }
        return field;
-};
+    }
-BlockArg.prototype.pressDropDown = function (e, fcn) {
+    pressDropDown (e, fcn) {
        if (isTablet && e.touches && (e.touches.length > 1)) {
            return;
        }
@ -299,15 +311,16 @@ BlockArg.prototype.pressDropDown = function (e, fcn) {
            return;
        }
        Menu.openDropDown(this.daddy.div, fcn);
-};
+    }
-BlockArg.prototype.closePictureMenu = function (e, mu, b, c) {
+    closePictureMenu (e, mu, b, c) {
        e.preventDefault();
        var value = b.owner.arg.argValue;
        b.owner.arg.argValue = c.substring(c.indexOf('_') + 1, c.length);
        var ctx = b.owner.blockicon.getContext('2d');
        b.icon = BlockSpecs.getImageFrom('assets/blockicons/' + c, 'svg');
-    ctx.clearRect(0, 0, 85 * scaleMultiplier * window.devicePixelRatio, 66 * scaleMultiplier * window.devicePixelRatio);
+        ctx.clearRect(0, 0, 85 * scaleMultiplier * window.devicePixelRatio,
            66 * scaleMultiplier * window.devicePixelRatio);
        if (!b.icon.complete) {
            b.icon.onload = function () {
                var w = b.icon.width;
@ -337,15 +350,16 @@ BlockArg.prototype.closePictureMenu = function (e, mu, b, c) {
            ScratchJr.storyStart('BlockArg.prototype.closePictureMenu');
        }
        Menu.openMenu = undefined;
-};
+    }
-BlockArg.prototype.menuCloseSpeeds = function (e, mu, b, c) {
+    menuCloseSpeeds (e, mu, b, c) {
        e.preventDefault();
        var value = b.owner.arg.argValue;
        b.owner.arg.argValue = BlockSpecs.speeds.indexOf(c);
        var ctx = b.owner.blockicon.getContext('2d');
        b.icon = BlockSpecs.getImageFrom('assets/blockicons/' + c, 'svg');
-    ctx.clearRect(0, 0, 64 * scaleMultiplier * window.devicePixelRatio, 64 * scaleMultiplier * window.devicePixelRatio);
+        ctx.clearRect(0, 0, 64 * scaleMultiplier * window.devicePixelRatio,
            64 * scaleMultiplier * window.devicePixelRatio);
        // On Android 4.2, clearRect does not work right away. Need to tickle the DOM
        b.owner.blockicon.style.display = 'none';
        b.owner.blockicon.offsetHeight;
@ -377,13 +391,13 @@ BlockArg.prototype.menuCloseSpeeds = function (e, mu, b, c) {
            ScratchJr.storyStart('BlockArg.prototype.menuCloseSpeeds');
        }
        Menu.openMenu = undefined;
-};
+    }
    //////////////////////////
    // Page Icon
    //////////////////////////
-BlockArg.prototype.pageIcon = function (num) {
+    pageIcon (num) {
        var dpr = window.devicePixelRatio;
        var page = ScratchJr.stage.pages[num - 1];
        var icon = document.createElement('canvas');
@ -436,9 +450,9 @@ BlockArg.prototype.pageIcon = function (num) {
        ictx.fill();
        writeText(ictx, 'bold ' + (12 * dpr) + 'px ' + Settings.blockArgFont, 'white', page.num, 26 * dpr, 58 * dpr);
        return icon;
-};
+    }
-BlockArg.prototype.updateIcon = function () {
+    updateIcon () {
        var num = this.argValue;
        var page = ScratchJr.stage.pages[num - 1];
        page.num = num;
@ -447,4 +461,5 @@ BlockArg.prototype.updateIcon = function () {
        var ctx = block.blockshape.getContext('2d');
        ctx.drawImage(this.div, 0, 0, this.div.width, this.div.height, 0, 0,
            this.div.width * block.scale, this.div.height * block.scale);
-};
+    }
 }
--- a/src/editor/engine/Page.js
+++ b/src/editor/engine/Page.js
@ -1,4 +1,21 @@
-var Page = function (id, data, fcn) {
+import ScratchJr from '../ScratchJr';
 import Project from '../../ui/Project';
 import Thumbs from '../../ui/Thumbs';
 import UI from '../../ui/UI';
 import Sprite from './Sprite';
 import Palette from './Palette';
 import BlockSpecs from '../blocks/BlockSpecs';
 import iOS from '../../iPad/iOS';
 import IO from '../../iPad/IO';
 import Undo from '../ui/Undo';
 import Matrix from '../geom/Matrix';
 import Vector from '../geom/Vector';
 import {newHTML, newDiv, gn,
    setCanvasSizeScaledToWindowDocumentHeight,
    DEGTOR, getIdFor, setProps, isTablet} from '../../utils/lib';
 export default class Page {
    constructor (id, data, fcn) {
        var container = ScratchJr.stage.pagesdiv;
        this.div = newHTML('div', 'stagepage', container); // newDiv(container,0,0, 480, 360, {position: 'absolute'});
        this.div.owner = this;
@ -19,9 +36,9 @@ var Page = function (id, data, fcn) {
        } else {
            this.loadPageData(data, fcn);
        }
-};
+    }
-Page.prototype.loadPageData = function (data, fcn) {
+    loadPageData (data, fcn) {
        this.currentSpriteName = data.lastSprite;
        if (data.textstartat) {
            this.textstartat = Number(data.textstartat);
@ -60,14 +77,14 @@ Page.prototype.loadPageData = function (data, fcn) {
                fcn();
            }
        }
-};
+    }
-Page.prototype.emptyPage = function () {
+    emptyPage () {
        this.clearBackground();
        this.createCat();
-};
+    }
-Page.prototype.setCurrentSprite = function (spr) { // set the sprite and toggles UI if no sprite is available
+    setCurrentSprite (spr) { // set the sprite and toggles UI if no sprite is available
        if (ScratchJr.getSprite()) {
            ScratchJr.getSprite().unselect();
        }
@ -82,15 +99,15 @@ Page.prototype.setCurrentSprite = function (spr) { // set the sprite and toggles
            Palette.hide();
            gn('scripts').style.display = 'none';
        }
-};
+    }
-Page.prototype.clearBackground = function () {
+    clearBackground () {
        while (this.bkg.childElementCount > 0) {
            this.bkg.removeChild(this.bkg.childNodes[0]);
        }
-};
+    }
-Page.prototype.setBackground = function (name, fcn) {
+    setBackground (name, fcn) {
        if (name == 'undefined') {
            return;
        }
@ -136,18 +153,18 @@ Page.prototype.setBackground = function (name, fcn) {
                });
            }
        }
-};
+    }
-Page.prototype.setSVG = function (str) {
+    setSVG (str) {
        var xmlDoc = new DOMParser().parseFromString(str, 'text/xml');
        var extxml = document.importNode(xmlDoc.documentElement, true);
        if (extxml.childNodes[0].nodeName == '#comment') {
            extxml.removeChild(extxml.childNodes[0]);
        }
        this.svg = extxml;
-};
+    }
-Page.prototype.setBackgroundImage = function (url, fcn) {
+    setBackgroundImage (url, fcn) {
        var img = document.createElement('img');
        img.src = url;
        this.bkg.originalImg = img.cloneNode(false);
@ -177,35 +194,35 @@ Page.prototype.setBackgroundImage = function (url, fcn) {
                fcn();
            }
        }
-};
+    }
-Page.prototype.setPageSprites = function (showstate) {
+    setPageSprites (showstate) {
        var list = JSON.parse(this.sprites);
        for (var i = 0; i < list.length; i++) {
            gn(list[i]).style.visibility = showstate;
        }
-};
+    }
-Page.prototype.redoChangeBkg = function (data) {
+    redoChangeBkg (data) {
        var me = this;
        var md5 = data[this.id].md5 ? data[this.id].md5 : 'none';
        this.setBackground(md5, me.updateThumb);
-};
+    }
    //////////////////////////////////////
    // page thumbnail
    /////////////////////////////////////
-Page.prototype.updateThumb = function (page) {
+    updateThumb (page) {
        var me = page ? page : ScratchJr.stage.currentPage;
        if (!me.thumbnail) {
            return;
        }
        var c = me.thumbnail.childNodes[0].childNodes[0];
        me.setPageThumb(c);
-};
+    }
-Page.prototype.pageThumbnail = function (p) {
+    pageThumbnail (p) {
        var tb = newHTML('div', 'pagethumb', p);
        tb.setAttribute('id', getIdFor('pagethumb'));
        tb.owner = this.id;
@ -228,9 +245,9 @@ Page.prototype.pageThumbnail = function (p) {
        }
        this.thumbnail = tb;
        return tb;
-};
+    }
-Page.prototype.setPageThumb = function (c) {
+    setPageThumb (c) {
        var w0, h0;
        if (Settings.edition == 'PBS') {
            w0 = 136;
@ -272,17 +289,17 @@ Page.prototype.setPageThumb = function (c) {
            ctx.drawImage(BlockSpecs.canvasMask, 0, 0, w, h);
            ctx.restore();
        }
-};
+    }
-Page.prototype.stampSpriteAt = function (ctx, spr, scale) {
+    stampSpriteAt (ctx, spr, scale) {
        if (!spr.shown) {
            return;
        }
        var img = (spr.type == 'sprite') ? spr.originalImg : spr.outline;
        this.drawSpriteImage(ctx, img, spr, scale);
-};
+    }
-Page.prototype.drawSpriteImage = function (ctx, img, spr, scale) {
+    drawSpriteImage (ctx, img, spr, scale) {
        if (!spr.shown) {
            return;
        }
@ -312,9 +329,9 @@ Page.prototype.drawSpriteImage = function (ctx, img, spr, scale) {
        }));
        ctx.drawImage(img, 0, 0, imgw, imgh, pos.x, pos.y, Math.floor(sw * scale), Math.floor(sh * scale));
        ctx.restore();
-};
+    }
-Page.prototype.getMatrixFor = function (spr) {
+    getMatrixFor (spr) {
        var sx = new Matrix();
        var angle = spr.angle ? -spr.angle : 0;
        if (spr.flip) {
@ -324,13 +341,13 @@ Page.prototype.getMatrixFor = function (spr) {
        var rx = new Matrix();
        rx.rotate(angle);
        return sx.multiply(rx);
-};
+    }
    /////////////////////
    // Saving
    /////////////////////
-Page.prototype.encodePage = function () {
+    encodePage () {
        var p = this.div;
        var spritelist = JSON.parse(this.sprites);
        var data = {};
@ -342,7 +359,8 @@ Page.prototype.encodePage = function () {
        }
        data.num = this.num;
        this.currentSpriteName = !this.currentSpriteName ?
-        undefined : (gn(this.currentSpriteName).owner.type == 'sprite') ? this.currentSpriteName : this.getSprites()[0];
+            undefined : (gn(this.currentSpriteName).owner.type == 'sprite') ?
            this.currentSpriteName : this.getSprites()[0];
        data.lastSprite = this.currentSpriteName;
        for (var j = 0; j < spritelist.length; j++) {
            data[spritelist[j]] = Project.encodeSprite(spritelist[j]);
@ -356,9 +374,9 @@ Page.prototype.encodePage = function () {
        }
        data.layers = layers;
        return data;
-};
+    }
-Page.prototype.getSprites = function () {
+    getSprites () {
        var spritelist = JSON.parse(this.sprites);
        var res = [];
        for (var i = 0; i < spritelist.length; i++) {
@ -367,14 +385,14 @@ Page.prototype.getSprites = function () {
            }
        }
        return res;
-};
+    }
    /////////////////////////////
    // Object creation
    /////////////////////////////
-Page.prototype.createText = function () {
+    createText () {
        var textAttr = {
            shown: true,
            type: 'text',
@ -399,16 +417,16 @@ Page.prototype.createText = function () {
        textAttr.page = this;
        textAttr.id = getIdFor('Text');
        new Sprite(textAttr);
-};
+    }
-Page.prototype.createCat = function () {
+    createCat () {
        var sprAttr = UI.mascotData(ScratchJr.stage.currentPage);
        Project.mediaCount++;
        var me = this;
        new Sprite(sprAttr, me.pageAdded);
-};
+    }
-Page.prototype.update = function (spr) {
+    update (spr) {
        if (spr) {
            Undo.record({
                action: 'modify',
@ -428,9 +446,9 @@ Page.prototype.update = function (spr) {
            Thumbs.updateSprites();
        }
        Thumbs.updatePages();
-};
+    }
-Page.prototype.updateBkg = function () {
+    updateBkg () {
        var me = ScratchJr.stage.currentPage;
        ScratchJr.storyStart('Page.prototype.updateBkg');
        Undo.record({
@ -439,17 +457,17 @@ Page.prototype.updateBkg = function () {
            who: me.id
        });
        Thumbs.updatePages();
-};
+    }
-Page.prototype.spriteAdded = function (spr) {
+    spriteAdded (spr) {
        var me = spr.div.parentNode.owner;
        me.setCurrentSprite(spr);
        me.update(spr);
        UI.spriteInView(spr);
        ScratchJr.onHold = false;
-};
+    }
-Page.prototype.pageAdded = function (spr) {
+    pageAdded (spr) {
        var me = spr.div.parentNode.owner;
        Project.mediaCount--;
        me.setCurrentSprite(spr);
@ -463,9 +481,9 @@ Page.prototype.pageAdded = function (spr) {
        }
        Thumbs.updateSprites();
        Thumbs.updatePages();
-};
+    }
-Page.prototype.addSprite = function (scale, md5, cname) {
+    addSprite (scale, md5, cname) {
        ScratchJr.onHold = true;
        var sprAttr = {
            flip: false,
@ -490,13 +508,13 @@ Page.prototype.addSprite = function (scale, md5, cname) {
        sprAttr.name = cname;
        sprAttr.md5 = md5;
        new Sprite(sprAttr, this.spriteAdded);
-};
+    }
-Page.prototype.createSprite = function (data) {
+    createSprite (data) {
        new Sprite(data, this.spriteAdded);
-};
+    }
-Page.prototype.modifySprite = function (md5, cid, sid) {
+    modifySprite (md5, cid, sid) {
        var sprite = gn(unescape(sid)).owner;
        if (!sprite) {
            sprite = ScratchJr.getSprite();
@ -508,9 +526,9 @@ Page.prototype.modifySprite = function (md5, cid, sid) {
        function gotImage (dataurl) {
            sprite.setCostume(dataurl, me.spriteAdded);
        }
-};
+    }
-Page.prototype.modifySpriteName = function (cid, sid) {
+    modifySpriteName (cid, sid) {
        var sprite = gn(unescape(sid)).owner;
        if (!sprite) {
            sprite = ScratchJr.getSprite();
@ -523,4 +541,5 @@ Page.prototype.modifySpriteName = function (cid, sid) {
            who: sprite.id
        });
        ScratchJr.storyStart('Page.prototype.modifySpriteName');
-};
+    }
 }
--- a/src/editor/engine/Runtime.js
+++ b/src/editor/engine/Runtime.js
@ -1,11 +1,17 @@
-var Runtime = function () {
+import ScratchJr from '../ScratchJr';
 import Project from '../../ui/Project';
 import Prims from './Prims';
 import Thread from './Thread';
 export default class Runtime {
    constructor () {
        this.threadsRunning = [];
        this.thread = undefined;
        this.intervalId = undefined;
        this.yield = false;
-};
+    }
-Runtime.prototype.beginTimer = function () {
+    beginTimer () {
        if (this.intervalId != null) {
            window.clearInterval(this.intervalId);
        }
@ -16,9 +22,9 @@ Runtime.prototype.beginTimer = function () {
        Project.saving = false;
        // Prims.time = (new Date() - 0);
        this.threadsRunning = [];
-};
+    }
-Runtime.prototype.tickTask = function () {
+    tickTask () {
        ScratchJr.updateRunStopButtons();
        if (this.threadsRunning.length < 1) {
            return;
@ -33,9 +39,9 @@ Runtime.prototype.tickTask = function () {
        for (var j = 0; j < this.threadsRunning.length; j++) {
            this.step(j);
        }
-};
+    }
-Runtime.prototype.inactive = function () {
+    inactive () {
        if (this.threadsRunning.length < 1) {
            return true;
        }
@ -48,14 +54,15 @@ Runtime.prototype.inactive = function () {
            if (t.isRunning && (t.firstBlock.blocktype != 'ontouch')) {
                inactive = false;
            }
-        if ((t.firstBlock.blocktype == 'ontouch') && (t.thisblock != null) && (t.thisblock.blocktype != 'ontouch')) {
+            if ((t.firstBlock.blocktype == 'ontouch') && (t.thisblock != null)
                && (t.thisblock.blocktype != 'ontouch')) {
                inactive = false;
            }
        }
        return inactive;
-};
+    }
-Runtime.prototype.step = function (n) {
+    step (n) {
        this.yield = false;
        this.thread = this.threadsRunning[n];
        while (true) { // eslint-disable-line no-constant-condition
@ -77,36 +84,36 @@ Runtime.prototype.step = function (n) {
                this.runPrim();
            }
        }
-};
+    }
-Runtime.prototype.addRunScript = function (spr, b) {
+    addRunScript (spr, b) {
        this.restartThread(spr, b);
-};
+    }
-Runtime.prototype.stopThreads = function () {
+    stopThreads () {
        for (var i in this.threadsRunning) {
            this.threadsRunning[i].stop();
        }
        this.threadsRunning = [];
-};
+    }
-Runtime.prototype.stopThreadBlock = function (b) {
+    stopThreadBlock (b) {
        for (var i in this.threadsRunning) {
            if (this.threadsRunning[i].firstBlock == b) {
                this.threadsRunning[i].stop();
            }
        }
-};
+    }
-Runtime.prototype.stopThreadSprite = function (spr) {
+    stopThreadSprite (spr) {
        for (var i in this.threadsRunning) {
            if (this.threadsRunning[i].spr == spr) {
                this.threadsRunning[i].stop();
            }
        }
-};
+    }
-Runtime.prototype.removeRunScript = function (spr) {
+    removeRunScript (spr) {
        var res = [];
        for (var i in this.threadsRunning) {
            if (this.threadsRunning[i].spr == spr) {
@ -123,9 +130,9 @@ Runtime.prototype.removeRunScript = function (spr) {
            }
        }
        return res;
-};
+    }
-Runtime.prototype.runPrim = function () {
+    runPrim () {
        if (this.thread.oldblock != null) {
            this.thread.oldblock.unhighlight();
        }
@ -142,9 +149,9 @@ Runtime.prototype.runPrim = function () {
            Prims.time = (new Date() - 0);
            token(this.thread);
        }
-};
+    }
-Runtime.prototype.endCase = function () {
+    endCase () {
        if (this.thread.oldblock != null) {
            this.thread.oldblock.unhighlight();
        }
@ -155,9 +162,9 @@ Runtime.prototype.endCase = function () {
            this.thread.thisblock = thing;
            this.runPrim();
        }
-};
+    }
-Runtime.prototype.restartThread = function (spr, b, active) {
+    restartThread (spr, b, active) {
        var newThread = new Thread(spr, b);
        var wasRunning = false;
        for (var i = 0; i < this.threadsRunning.length; i++) {
@ -176,4 +183,5 @@ Runtime.prototype.restartThread = function (spr, b, active) {
            this.threadsRunning.push(newThread);
        }
        return newThread;
-};
+    }
 }
--- a/src/editor/engine/Sprite.js
+++ b/src/editor/engine/Sprite.js
@ -7,15 +7,38 @@
 //  d. Create Mask for pixel detection and cache it on the browser
 ////////////////////////////////////////////////////////////
-var Sprite = function (attr, whenDone) {
+import ScratchJr from '../ScratchJr';
 import Project from '../../ui/Project';
 import Thumbs from '../../ui/Thumbs';
 import UI from '../../ui/UI';
 import BlockSpecs from '../blocks/BlockSpecs';
 import iOS from '../../iPad/iOS';
 import IO from '../../iPad/IO';
 import Undo from '../ui/Undo';
 import ScriptsPane from '../ui/ScriptsPane';
 import SVG2Canvas from '../../utils/SVG2Canvas';
 import SVGTools from '../../painteditor/SVGTools';
 import Rectangle from '../../geom/Rectangle';
 import Events from '../../utils/Events';
 import Localization from '../../utils/Localization';
 import ScratchAudio from '../../utils/ScratchAudio';
 import Scripts from '../ui/Scripts';
 import {newHTML, newDiv, newP, gn,
    setCanvasSizeScaledToWindowDocumentHeight,
    DEGTOR, getIdFor, setProps, isTablet, isiOS,
    isAndroid, fitInRect, scaleMultiplier, setCanvasSize,
    globaly, globalx, rgbToHex} from '../../utils/lib';
 export default class Sprite {
    constructor (attr, whenDone) {
        if (attr.type == 'sprite') {
            this.createSprite(attr.page, attr.md5, attr.id, attr, whenDone);
        } else {
            this.createText(attr, whenDone);
        }
-};
+    }
-Sprite.prototype.createSprite = function (page, md5, id, attr, fcn) {
+    createSprite (page, md5, id, attr, fcn) {
        ScratchJr.storyStart('Sprite.prototype.createSprite');
        this.div = document.createElement('div');
        setProps(this.div.style, {
@ -48,9 +71,9 @@ Sprite.prototype.createSprite = function (page, md5, id, attr, fcn) {
        function gotImage (dataurl) {
            me.setCostume(dataurl, fcn);
        }
-};
+    }
-Sprite.prototype.getAsset = function (whenDone) {
+    getAsset (whenDone) {
        var md5 = this.md5;
        var spr = this;
        var url = (MediaLib.keys[md5]) ? MediaLib.path + md5 : (md5.indexOf('/') < 0) ? iOS.path + md5 : md5;
@ -66,7 +89,7 @@ Sprite.prototype.getAsset = function (whenDone) {
        function doNext (str) {
            str = str.replace(/>\s*</g, '><');
            spr.setSVG(str);
-        if ((str.indexOf('xlink:href') < 0) && iOS.path {
+            if ((str.indexOf('xlink:href') < 0) && iOS.path) {
                whenDone(url); // does not have embedded images
            } else {
                var base64 = IO.getImageDataURL(spr.md5, btoa(str));
@ -75,18 +98,18 @@ Sprite.prototype.getAsset = function (whenDone) {
                });
            }
        }
-};
+    }
-Sprite.prototype.setSVG = function (str) {
+    setSVG (str) {
        var xmlDoc = new DOMParser().parseFromString(str, 'text/xml');
        var extxml = document.importNode(xmlDoc.documentElement, true);
        if (extxml.childNodes[0].nodeName == '#comment') {
            extxml.removeChild(extxml.childNodes[0]);
        }
        this.svg = extxml;
-};
+    }
-Sprite.prototype.setCostume = function (dataurl, fcn) {
+    setCostume (dataurl, fcn) {
        var img = document.createElement('img');
        img.src = dataurl;
        this.img = img;
@ -106,9 +129,9 @@ Sprite.prototype.setCostume = function (dataurl, fcn) {
        } else {
            sprite.displaySprite(fcn);
        }
-};
+    }
-Sprite.prototype.displaySprite = function (whenDone) {
+    displaySprite (whenDone) {
        var w = this.img.width;
        var h = this.img.height;
        this.div.style.width = this.img.width + 'px';
@ -119,9 +142,9 @@ Sprite.prototype.displaySprite = function (whenDone) {
        this.h = h;
        this.setPos(this.xcoor, this.ycoor);
        this.doRender(whenDone);
-};
+    }
-Sprite.prototype.doRender = function (whenDone) {
+    doRender (whenDone) {
        this.drawBorder(); // canvas draw border
        this.render();
        SVG2Canvas.drawInCanvas(this); // canvas draws mask for pixel detection
@ -130,9 +153,9 @@ Sprite.prototype.doRender = function (whenDone) {
        if (whenDone) {
            whenDone(this);
        }
-};
+    }
-Sprite.prototype.drawBorder = function () {
+    drawBorder () {
        // TODO: Merge these to get better thumbnail rendering on iOS
        var w, h, extxml;
        if (isAndroid) {
@ -153,13 +176,13 @@ Sprite.prototype.drawBorder = function () {
            setCanvasSize(this.border, w, h);
            SVG2Canvas.drawBorder(extxml, this.border.getContext('2d'));
        }
-};
+    }
    //////////////////////////////////////
    // sprite thumbnail
    /////////////////////////////////////
-Sprite.prototype.spriteThumbnail = function (p) {
+    spriteThumbnail (p) {
        var tb = newHTML('div', 'spritethumb off', p);
        tb.setAttribute('id', getIdFor('spritethumb'));
        tb.type = 'spritethumb';
@ -179,9 +202,9 @@ Sprite.prototype.spriteThumbnail = function (p) {
        newHTML('div', 'brush', tb);
        this.thumbnail = tb;
        return tb;
-};
+    }
-Sprite.prototype.updateSpriteThumb = function () {
+    updateSpriteThumb () {
        var tb = this.thumbnail;
        if (!tb) {
            return;
@ -189,9 +212,9 @@ Sprite.prototype.updateSpriteThumb = function () {
        var cnv = tb.childNodes[0];
        this.drawMyImage(cnv, cnv.width, cnv.height);
        tb.childNodes[1].textContent = this.name;
-};
+    }
-Sprite.prototype.drawMyImage = function (cnv, w, h) {
+    drawMyImage (cnv, w, h) {
        if (!this.img) {
            return;
        }
@ -220,13 +243,13 @@ Sprite.prototype.drawMyImage = function (cnv, w, h) {
        } else {
            ctx.drawImage(img, 0, 0, imgw, imgh, ix, iy, iw, ih);
        }
-};
+    }
    ///////////////////////////////////////////////////////////////////////////////
    // sprite Primitives
    //////////////////////////////////////////////////////////////////////////////
-Sprite.prototype.goHome = function () {
+    goHome () {
        this.setPos(this.homex, this.homey);
        this.scale = this.homescale;
        this.shown = this.homeshown;
@ -234,9 +257,9 @@ Sprite.prototype.goHome = function () {
        this.div.style.opacity = this.shown ? 1 : 0;
        this.setHeading(0);
        this.render();
-};
+    }
-Sprite.prototype.touchingAny = function () {
+    touchingAny () {
        if (!this.shown) {
            return false;
        }
@ -270,9 +293,9 @@ Sprite.prototype.touchingAny = function () {
            }
        }
        return false;
-};
+    }
-Sprite.prototype.verifyHit = function (other) {
+    verifyHit (other) {
        var ctx = ScratchJr.workingCanvas.getContext('2d');
        var ctx2 = ScratchJr.workingCanvas2.getContext('2d');
        ctx.clearRect(0, 0, 480, 360);
@ -290,7 +313,8 @@ Sprite.prototype.verifyHit = function (other) {
        this.stamp(ctx);
        // Normally, we could do a source-over followed by a source-in to detect where the two images collide.
        // However, unfortunately, behavior on Android 4.2 and Android 4.4+ varies.
-    // On Android 4.4+, we could potentially use this more efficient strategy, but we opted for using a single strategy
+        // On Android 4.4+, we could potentially use this more efficient strategy,
        // but we opted for using a single strategy
        // that works on all platforms, despite it being less efficient.
        // A future optimization could detect the behavior and use
        // the right strategy.
@ -315,18 +339,18 @@ Sprite.prototype.verifyHit = function (other) {
            }
        }
        return false;
-};
+    }
-Sprite.prototype.getAlpha = function (data, node, w) {
+    getAlpha (data, node, w) {
        return data[(node.x * 4) + node.y * w * 4 + 3];
-};
+    }
-Sprite.prototype.setHeading = function (angle) {
+    setHeading (angle) {
        this.angle = angle % 360;
        this.render();
-};
+    }
-Sprite.prototype.setPos = function (dx, dy) {
+    setPos (dx, dy) {
        this.dirx = ((dx - this.xcoor) == 0) ? 1 : (dx - this.xcoor) / Math.abs(dx - this.xcoor);
        this.diry = ((dy - this.ycoor) == 0) ? 1 : (dy - this.ycoor) / Math.abs(dy - this.ycoor);
        this.xcoor = dx;
@ -339,17 +363,17 @@ Sprite.prototype.setPos = function (dx, dy) {
            top: '0px'
        });
        this.updateBubble();
-};
+    }
-Sprite.prototype.wrap = function () {
+    wrap () {
        if (this.type == 'text') {
            this.wrapText();
        } else {
            this.wrapChar();
        }
-};
+    }
-Sprite.prototype.wrapChar = function () {
+    wrapChar () {
        if (this.xcoor < 0) {
            this.xcoor = 480 + this.xcoor;
        }
@ -362,9 +386,9 @@ Sprite.prototype.wrapChar = function () {
        if (this.ycoor >= 360) {
            this.ycoor = this.ycoor - 360;
        }
-};
+    }
-Sprite.prototype.wrapText = function () {
+    wrapText () {
        var max = this.cx > 480 ? this.cx : 480;
        var min = this.cx > 480 ? 480 - this.cx : 0;
        if (this.xcoor < min) {
@ -379,9 +403,9 @@ Sprite.prototype.wrapText = function () {
        if (this.ycoor >= 360) {
            this.ycoor = this.ycoor - 360;
        }
-};
+    }
-Sprite.prototype.render = function () {
+    render () {
        // TODO: Merge these to get better thumbnail rendering on iOS
        var dx, dy, mtx;
        if (isAndroid) {
@ -426,9 +450,9 @@ Sprite.prototype.render = function () {
            }
            this.setTransform(mtx);
        }
-};
+    }
-Sprite.prototype.select = function () {
+    select () {
        if (this.borderOn) {
            return;
        }
@ -452,9 +476,9 @@ Sprite.prototype.select = function () {
        });
        this.borderOn = true;
        this.render();
-};
+    }
-Sprite.prototype.unselect = function () {
+    unselect () {
        if (!this.borderOn) {
            return;
        }
@ -463,32 +487,32 @@ Sprite.prototype.unselect = function () {
        }
        this.div.appendChild(this.img);
        this.borderOn = false;
-};
+    }
-Sprite.prototype.setTransform = function (transform) {
+    setTransform (transform) {
        this.div.style.webkitTransform = transform;
-};
+    }
-Sprite.prototype.screenLeft = function () {
+    screenLeft () {
        return Math.round(this.xcoor - this.cx * this.scale);
-};
+    }
-Sprite.prototype.screenTop = function () {
+    screenTop () {
        return Math.round(this.ycoor - this.cy * this.scale);
-};
+    }
-Sprite.prototype.noScaleFor = function () {
+    noScaleFor () {
        this.setScaleTo(this.defaultScale);
-};
+    }
-Sprite.prototype.changeSizeBy = function (num) {
+    changeSizeBy (num) {
        var n = Number(num) + Number(this.scale) * 100;
        this.scale = this.getScale(n / 100);
        this.setPos(this.xcoor, this.ycoor);
        this.render();
-};
+    }
-Sprite.prototype.setScaleTo = function (n) {
+    setScaleTo (n) {
        n = this.getScale(n);
        if (n == this.scale) {
            return;
@ -496,9 +520,9 @@ Sprite.prototype.setScaleTo = function (n) {
        this.scale = n;
        this.setPos(this.xcoor, this.ycoor);
        this.render();
-};
+    }
-Sprite.prototype.getScale = function (n) {
+    getScale (n) {
        var mins = Math.max(Math.max(this.w, this.h) * n, 36);
        var maxs = Math.min(Math.min(this.w, this.h) * n, 360);
        if (mins == 36) {
@ -508,9 +532,9 @@ Sprite.prototype.getScale = function (n) {
            return 360 / Math.min(this.w, this.h);
        }
        return n;
-};
+    }
-Sprite.prototype.getBox = function () {
+    getBox () {
        var box = {
            x: this.screenLeft(),
            y: this.screenTop(),
@ -518,31 +542,32 @@ Sprite.prototype.getBox = function () {
            height: this.h * this.scale
        };
        return box;
-};
+    }
-Sprite.prototype.getBoxWithEffects = function () {
+    getBoxWithEffects () {
        if (this.type == 'text') {
            return new Rectangle(this.screenLeft(), this.screenTop(), this.w * this.scale, this.h * this.scale);
        }
        var max = Math.max(this.outline.width, this.outline.height);
        var w = Math.floor(max * 1.5 * this.scale);
        var h = Math.floor(max * 1.5 * this.scale);
-    return new Rectangle(Math.floor(this.xcoor - w / 2), Math.floor(this.ycoor - h / 2), Math.floor(w), Math.floor(h));
+        return new Rectangle(Math.floor(this.xcoor - w / 2),
-};
+            Math.floor(this.ycoor - h / 2), Math.floor(w), Math.floor(h));
    }
    //////////////////////////////////////////////////
    // Balloon
    //////////////////////////////////////////////////
-Sprite.prototype.closeBalloon = function () {
+    closeBalloon () {
        if (!this.balloon) {
            return;
        }
        this.balloon.parentNode.removeChild(this.balloon);
        this.balloon = undefined;
-};
+    }
-Sprite.prototype.openBalloon = function (label) {
+    openBalloon (label) {
        if (this.balloon) {
            this.closeBalloon();
        }
@ -596,9 +621,9 @@ Sprite.prototype.openBalloon = function (label) {
            visibility: 'visible'
        });
        this.drawBalloon();
-};
+    }
-Sprite.prototype.updateBubble = function () {
+    updateBubble () {
        if (this.balloon == null) {
            return;
        }
@ -616,9 +641,9 @@ Sprite.prototype.updateBubble = function () {
        this.balloon.left = dx;
        this.balloon.top = dy;
        this.drawBalloon();
-};
+    }
-Sprite.prototype.drawBalloon = function () {
+    drawBalloon () {
        var img = this.balloon.childNodes[0];
        var w = this.balloon.offsetWidth;
        var h = this.balloon.offsetHeight;
@ -646,13 +671,13 @@ Sprite.prototype.drawBalloon = function () {
        var b = a[1].split('h-1');
        str = a[0] + 'h' + (-side1 + 7 + curve) + b[0] + 'h' + (-side2 + 7 + curve) + b[1];
        img.src = 'data:image/svg+xml;base64,' + btoa(str);
-};
+    }
    /////////////////////////////////////
    // Sprite rendering
    ////////////////////////////////////
-Sprite.prototype.stamp = function (ctx, deltax, deltay) {
+    stamp (ctx, deltax, deltay) {
        var w = this.outline.width * this.scale;
        var h = this.outline.height * this.scale;
        var dx = deltax ? deltax : 0;
@ -665,13 +690,13 @@ Sprite.prototype.stamp = function (ctx, deltax, deltay) {
        }
        ctx.drawImage(this.outline, -w / 2, -h / 2, w, h);
        ctx.restore();
-};
+    }
    /////////////////////////////////////
    // Text Creation
    /////////////////////////////////////
-Sprite.prototype.createText = function (attr, whenDone) {
+    createText (attr, whenDone) {
        var page = attr.page;
        setProps(this, attr);
        this.div = newHTML('p', 'textsprite', page.div);
@ -707,9 +732,9 @@ Sprite.prototype.createText = function (attr, whenDone) {
                whenDone(this);
            }
        }
-};
+    }
-Sprite.prototype.setTextBox = function () {
+    setTextBox () {
        var sform = document.forms.activetextbox;
        sform.textsprite = this;
        var box = this.getBox();
@ -771,9 +796,9 @@ Sprite.prototype.setTextBox = function () {
                height: (this.fontsize + 10) + 'px'
            });
        }
-};
+    }
-Sprite.prototype.unfocusText = function () {
+    unfocusText () {
        ScratchJr.blur();
        document.body.scrollTop = 0;
        document.body.scrollLeft = 0;
@ -808,9 +833,9 @@ Sprite.prototype.unfocusText = function () {
            ScratchJr.onBackButtonCallback.pop();
            AndroidInterface.scratchjr_forceHideKeyboard();
        }
-};
+    }
-Sprite.prototype.deleteText = function (record) {
+    deleteText (record) {
        var id = this.id;
        var page = ScratchJr.stage.currentPage;
        page.textstartat = (this.ycoor + (this.fontsize * 1.35)) > 360 ? 36 : this.ycoor;
@ -833,32 +858,32 @@ Sprite.prototype.deleteText = function (record) {
            });
            ScratchJr.storyStart('Sprite.prototype.deleteText');
        }
-};
+    }
-Sprite.prototype.noChars = function (str) {
+    noChars (str) {
        for (var i = 0; i < str.length; i++) {
            if (str[i] != ' ') {
                return false;
            }
        }
        return true;
-};
+    }
-Sprite.prototype.contractText = function () {
+    contractText () {
        var form = document.forms.activetextbox;
        this.str = form.typing.value.substring(0, form.typing.maxLength);
        this.recalculateText();
-};
+    }
-Sprite.prototype.clickOnText = function (e) {
+    clickOnText (e) {
        e.stopPropagation();
        this.setTextBox();
        gn('textbox').style.visibility = 'visible';
        this.div.style.visibility = 'hidden';
        this.activateInput();
-};
+    }
-Sprite.prototype.activateInput = function () {
+    activateInput () {
        this.oldvalue = this.str;
        var ti = document.forms.activetextbox.typing;
        gn('textbox').style.visibility = 'visible';
@ -892,9 +917,9 @@ Sprite.prototype.activateInput = function () {
                }, 100);
            }
        }
-};
+    }
-Sprite.prototype.handleWrite = function (e) {
+    handleWrite (e) {
        var key = e.keyCode || e.which;
        var ti = e.target;
        if (key == 13) {
@ -906,24 +931,24 @@ Sprite.prototype.handleWrite = function (e) {
                this.deactivateInput();
            }
        }
-};
+    }
-Sprite.prototype.handleKeyUp = function (e) {
+    handleKeyUp (e) {
        var ti = e.target;
        if (!(ti.parentNode).textsprite) {
            return;
        }
        (ti.parentNode).textsprite.str = ti.value;
-};
+    }
-Sprite.prototype.deactivateInput = function () {
+    deactivateInput () {
        var ti = document.forms.activetextbox.typing;
        ti.onblur = undefined;
        ti.onkeypress = undefined;
        ti.onsubmit = undefined;
-};
+    }
-Sprite.prototype.activate = function () {
+    activate () {
        var list = fitInRect(this.w, this.h, ScriptsPane.watermark.offsetWidth, ScriptsPane.watermark.offsetHeight);
        var div = ScriptsPane.watermark;
        while (div.childElementCount > 0) {
@ -939,26 +964,26 @@ Sprite.prototype.activate = function () {
            zoom: Math.floor((list[2] / this.w) * 100) + '%'
        };
        setProps(img.style, attr);
-};
+    }
-Sprite.prototype.getSVGimage = function (svg) {
+    getSVGimage (svg) {
        var img = document.createElement('img');
        var str = (new XMLSerializer()).serializeToString(svg);
        str = str.replace(/ href="data:image/g, ' xlink:href="data:image');
        img.src = 'data:image/svg+xml;base64,' + btoa(str);
        return img;
-};
+    }
    /////////////////////////////////////////////////
    // Text fcn
    ////////////////////////////////////////////////
-Sprite.prototype.setColor = function (c) {
+    setColor (c) {
        this.color = c;
        this.div.style.color = this.color;
-};
+    }
-Sprite.prototype.setFontSize = function (n) {
+    setFontSize (n) {
        if (n < 12) {
            n = 12;
        }
@ -966,9 +991,9 @@ Sprite.prototype.setFontSize = function (n) {
            n = 72;
        }
        this.fontsize = n;
-};
+    }
-Sprite.prototype.recalculateText = function () {
+    recalculateText () {
        this.div.style.color = this.color;
        this.div.style.fontSize = this.fontsize + 'px';
        this.div.textContent = this.str;
@ -988,9 +1013,9 @@ Sprite.prototype.recalculateText = function () {
        ctx.textBaseline = 'top';
        ctx.fillText(this.str, 0, 0);
        this.setPos(this.xcoor, this.ycoor);
-};
+    }
-Sprite.prototype.startShaking = function () {
+    startShaking () {
        var p = this.div.parentNode;
        var shake = newHTML('div', 'shakeme', p);
        shake.id = 'shakediv';
@ -1038,9 +1063,9 @@ Sprite.prototype.startShaking = function () {
        cb.id = 'deletesprite';
        this.div = shake;
        this.div.owner = this;
-};
+    }
-Sprite.prototype.stopShaking = function () {
+    stopShaking () {
        if (this.div.id != 'shakediv') {
            return;
        }
@ -1066,9 +1091,9 @@ Sprite.prototype.stopShaking = function () {
            }
            this.setTransform(mtx);
        }
-};
+    }
-Sprite.prototype.drawCloseButton = function () {
+    drawCloseButton () {
        var ctx = this.div.getContext('2d');
        var img = document.createElement('img');
        img.src = 'assets/ui/closeit.svg';
@ -1079,13 +1104,13 @@ Sprite.prototype.drawCloseButton = function () {
        } else {
            ctx.drawImage(img, 0, 0);
        }
-};
+    }
    //////////////////////////////////////////
    // Save data
    /////////////////////////////////////////
-Sprite.prototype.getData = function () {
+    getData () {
        var data = (this.type == 'sprite') ? this.getSpriteData() : this.getTextBoxData();
        if (this.type != 'sprite') {
            return data;
@ -1098,9 +1123,9 @@ Sprite.prototype.getData = function () {
        }
        data.scripts = res;
        return data;
-};
+    }
-Sprite.prototype.getSpriteData = function () {
+    getSpriteData () {
        var data = {};
        data.shown = this.shown;
        data.type = this.type;
@ -1125,9 +1150,9 @@ Sprite.prototype.getSpriteData = function () {
        data.homeshown = this.homeshown;
        data.homeflip = this.homeflip;
        return data;
-};
+    }
-Sprite.prototype.getTextBoxData = function () {
+    getTextBoxData () {
        var data = {};
        data.shown = this.shown;
        data.type = this.type;
@ -1145,4 +1170,5 @@ Sprite.prototype.getTextBoxData = function () {
        data.color = this.color;
        data.fontsize = this.fontsize;
        return data;
-};
+    }
 }
--- a/src/editor/engine/Stage.js
+++ b/src/editor/engine/Stage.js
@ -1,4 +1,21 @@
-var Stage = function (div) {
+import ScratchJr from '../ScratchJr';
 import Project from '../../ui/Project';
 import Thumbs from '../../ui/Thumbs';
 import UI from '../../ui/UI';
 import Undo from '../ui/Undo';
 import ScriptsPane from '../ui/ScriptsPane';
 import Rectangle from '../../geom/Rectangle';
 import Events from '../../utils/Events';
 import ScratchAudio from '../../utils/ScratchAudio';
 import Vector from '../../geom/Vector';
 import Page from './Page';
 import {newHTML, newDiv, gn,
    getIdFor, setProps,
    scaleMultiplier, setCanvasSize,
    globaly, globalx} from '../../utils/lib';
 export default class Stage {
    constructor (div) {
        this.currentPage = undefined;
        this.div = newHTML('div', 'stage', div);
        this.div.setAttribute('id', 'stage');
@ -24,35 +41,35 @@ var Stage = function (div) {
            x: 0,
            y: 0
        };
-};
+    }
-Stage.prototype.setStageScaleAndPosition = function (scale, x, y) {
+    setStageScaleAndPosition (scale, x, y) {
        this.stageScale = scale;
        setProps(gn('stage').style, {
            webkitTransform: 'translate(' + (-this.width / 2) + 'px, ' + (-this.height / 2) + 'px) ' +
                'scale(' + scale + ') ' +
                'translate(' + (this.width / 2 + x) + 'px, ' + (this.height / 2 + y) + 'px)'
        });
-};
+    }
-Stage.prototype.getPagesID = function () {
+    getPagesID () {
        var res = [];
        for (var i = 0; i < this.pages.length; i++) {
            res.push(this.pages[i].id);
        }
        return res;
-};
+    }
-Stage.prototype.getPage = function (id) {
+    getPage (id) {
        for (var i = 0; i < this.pages.length; i++) {
            if (this.pages[i].id == id) {
                return this.pages[i];
            }
        }
        return this.pages[0];
-};
+    }
-Stage.prototype.resetPage = function (obj) {
+    resetPage (obj) {
        var page = obj.div;
        for (var i = 0; i < page.childElementCount; i++) {
            var spr = page.childNodes[i].owner;
@ -63,19 +80,19 @@ Stage.prototype.resetPage = function (obj) {
                spr.goHome();
            }
        }
-};
+    }
-Stage.prototype.resetPages = function () {
+    resetPages () {
        for (var i = 0; i < ScratchJr.stage.pages.length; i++) {
            Stage.prototype.resetPage(ScratchJr.stage.pages[i]);
        }
-};
+    }
    //goto page
-Stage.prototype.gotoPage = function (n) {
+    gotoPage (n) {
        if (n < 1) {
            return;
        }
@ -86,9 +103,9 @@ Stage.prototype.gotoPage = function (n) {
            return;
        }
        this.setPage(this.pages[n - 1], true);
-};
+    }
-Stage.prototype.setPage = function (page, isOn) {
+    setPage (page, isOn) {
        ScratchJr.stopStrips();
        var sc = ScratchJr.getSprite() ? gn(ScratchJr.stage.currentPage.currentSpriteName + '_scripts') : undefined;
        if (sc) {
@ -109,9 +126,9 @@ Stage.prototype.setPage = function (page, isOn) {
        if (isOn) {
            this.loadPageThreads();
        }
-};
+    }
-Stage.prototype.loadPageThreads = function () {
+    loadPageThreads () {
        ScratchJr.blur();
        var page = this.currentPage;
        for (var i = 0; i < page.div.childElementCount; i++) {
@ -130,13 +147,13 @@ Stage.prototype.loadPageThreads = function () {
                ScratchJr.runtime.addRunScript(spr, b);
            }
        }
-};
+    }
    //Copy Sprite
    /////////////////////////////////'
-Stage.prototype.copySprite = function (el, thumb) {
+    copySprite (el, thumb) {
        ScratchAudio.sndFX('copy.wav');
        Thumbs.overpage(thumb);
        var data = Project.encodeSprite(el.owner);
@ -171,13 +188,13 @@ Stage.prototype.copySprite = function (el, thumb) {
            ScratchJr.storyStart('Stage.prototype.copySprite');
        };
        Project.recreateObject(page, name, data, whenDone, page.id == stg.currentPage.id);
-};
+    }
    //Delete page
-Stage.prototype.deletePage = function (str, data) {
+    deletePage (str, data) {
        //  reserve a next id to be able to Undo deleting the first page
        ScratchJr.storyStart('Stage.prototype.deletePage'); // Record a change for sample projects in story-starter mode
        var pageid = getIdFor('page');
@ -234,15 +251,15 @@ Stage.prototype.deletePage = function (str, data) {
                });
            }
        }
-};
+    }
-Stage.prototype.setViewPage = function (page) {
+    setViewPage (page) {
        this.currentPage = page;
        this.currentPage.div.style.visibility = 'visible';
        this.currentPage.setPageSprites('visible');
-};
+    }
-Stage.prototype.removePageBlocks = function (str) {
+    removePageBlocks (str) {
        var indx = this.getPagesID().indexOf(str);
        for (var n = 0; n < this.pages.length; n++) {
            var page = this.pages[n];
@ -274,13 +291,13 @@ Stage.prototype.removePageBlocks = function (str) {
                }
            }
        }
-};
+    }
    //Events MouseDown
-Stage.prototype.mouseDown = function (e) {
+    mouseDown (e) {
        if (e.touches && (e.touches.length > 1)) {
            return;
        }
@ -321,9 +338,9 @@ Stage.prototype.mouseDown = function (e) {
        } else {
            this.mouseDownOnSprite(hitobj, pt);
        }
-};
+    }
-Stage.prototype.checkShaking = function (pt, target) {
+    checkShaking (pt, target) {
        if (!ScratchJr.shaking) {
            return target;
        }
@ -333,9 +350,9 @@ Stage.prototype.checkShaking = function (pt, target) {
        var h = gn('deletesprite').offsetHeight;
        var rect = new Rectangle(dx, dy, w, h);
        return rect.hitRect(pt) ? gn('deletesprite') : target;
-};
+    }
-Stage.prototype.mouseDownOnSprite = function (spr, pt) {
+    mouseDownOnSprite (spr, pt) {
        this.initialPoint = {
            x: pt.x,
            y: pt.y
@ -346,9 +363,9 @@ Stage.prototype.mouseDownOnSprite = function (spr, pt) {
            Events.holdit(spr.div, this.startShaking);
        }
        this.setEvents();
-};
+    }
-Stage.prototype.whoIsIt = function (ctx, pt) {
+    whoIsIt (ctx, pt) {
        var page = this.currentPage.div;
        var spr, pixel;
        for (var i = page.childElementCount - 1; i > -1; i--) {
@ -386,9 +403,9 @@ Stage.prototype.whoIsIt = function (ctx, pt) {
            }
        }
        return undefined;
-};
+    }
-Stage.prototype.getStagePt = function (evt) {
+    getStagePt (evt) {
        var pt = Events.getTargetPoint(evt);
        var mc = this.div;
        var dx = globalx(mc);
@ -398,9 +415,9 @@ Stage.prototype.getStagePt = function (evt) {
        pt.x /= this.stageScale;
        pt.y /= this.stageScale;
        return pt;
-};
+    }
-Stage.prototype.setEvents = function () {
+    setEvents () {
        var me = this;
        window.ontouchmove = function (evt) {
            me.mouseMove(evt);
@ -408,9 +425,9 @@ Stage.prototype.setEvents = function () {
        window.ontouchend = function (evt) {
            me.mouseUp(evt);
        };
-};
+    }
-Stage.prototype.startShaking = function (b) {
+    startShaking (b) {
        if (!b.owner) {
            return;
        }
@ -418,18 +435,18 @@ Stage.prototype.startShaking = function (b) {
        ScratchJr.shaking = b;
        ScratchJr.stopShaking = ScratchJr.stage.stopShaking;
        b.owner.startShaking();
-};
+    }
-Stage.prototype.stopShaking = function (b) {
+    stopShaking (b) {
        if (!b.owner) {
            return;
        }
        b.owner.stopShaking();
        ScratchJr.shaking = undefined;
        ScratchJr.stopShaking = undefined;
-};
+    }
-Stage.prototype.startSpriteDrag = function () {
+    startSpriteDrag () {
        var spr = Events.dragthumbnail.owner;
        spr.threads = ScratchJr.runtime.removeRunScript(spr);
        this.currentPage.div.appendChild(Events.dragthumbnail);
@ -439,9 +456,9 @@ Stage.prototype.startSpriteDrag = function () {
        };
        Events.dragged = true;
        ScratchJr.changed = true;
-};
+    }
-Stage.prototype.mouseMove = function (e) {
+    mouseMove (e) {
        if (!Events.dragthumbnail) {
            return;
        }
@ -467,17 +484,17 @@ Stage.prototype.mouseMove = function (e) {
            x: pt.x,
            y: pt.y
        };
-};
+    }
-Stage.prototype.wrapDelta = function (spr, delta) {
+    wrapDelta (spr, delta) {
        if (spr.type == 'text') {
            return this.wrapText(spr, delta);
        } else {
            return this.wrapChar(spr, delta);
        }
-};
+    }
-Stage.prototype.wrapChar = function (spr, delta) {
+    wrapChar (spr, delta) {
        if ((delta.x + spr.xcoor) < 0) {
            delta.x -= (spr.xcoor + delta.x);
        }
@ -491,9 +508,9 @@ Stage.prototype.wrapChar = function (spr, delta) {
            delta.y += (359 - (spr.ycoor + delta.y));
        }
        return delta;
-};
+    }
-Stage.prototype.wrapText = function (spr, delta) {
+    wrapText (spr, delta) {
        var max = spr.cx > 480 ? spr.cx : 480;
        var min = spr.cx > 480 ? 480 - spr.cx : 0;
        if ((delta.x + spr.xcoor) <= min) {
@ -509,9 +526,9 @@ Stage.prototype.wrapText = function (spr, delta) {
            delta.y += (359 - (spr.ycoor + delta.y));
        }
        return delta;
-};
+    }
-Stage.prototype.mouseUp = function (e) {
+    mouseUp (e) {
        var spr = Events.dragthumbnail.owner;
        if (Events.timeoutEvent) {
            clearTimeout(Events.timeoutEvent);
@ -529,29 +546,29 @@ Stage.prototype.mouseUp = function (e) {
        Events.clearEvents();
        Events.dragged = false;
        Events.dragthumbnail = undefined;
-};
+    }
-Stage.prototype.moveElementBy = function (spr) {
+    moveElementBy (spr) {
        if (!ScratchJr.inFullscreen) {
            spr.homex = spr.xcoor;
            spr.homey = spr.ycoor;
            spr.homeflip = spr.flip;
        }
        Thumbs.updatePages();
-};
+    }
-Stage.prototype.clickOnSprite = function (e, spr) {
+    clickOnSprite (e, spr) {
        e.preventDefault();
        ScratchJr.clearSelection();
        ScratchJr.startScriptsFor(spr, ['onclick']);
        ScratchJr.startCurrentPageStrips(['ontouch']);
-};
+    }
    //Delete Sprite
    /////////////////////////////////'
-Stage.prototype.removeSprite = function (sprite) {
+    removeSprite (sprite) {
        ScratchJr.shaking = undefined;
        ScratchJr.stopShaking = undefined;
        ScratchAudio.sndFX('cut.wav');
@ -562,9 +579,9 @@ Stage.prototype.removeSprite = function (sprite) {
        }
        this.currentPage.updateThumb();
        this.updatePageBlocks();
-};
+    }
-Stage.prototype.removeCharacter = function (spr) {
+    removeCharacter (spr) {
        ScratchJr.runtime.stopThreadSprite(spr);
        this.removeFromPage(spr);
        Undo.record({
@ -574,16 +591,16 @@ Stage.prototype.removeCharacter = function (spr) {
        });
        ScratchJr.storyStart('Stage.prototype.removeCharacter');
        Thumbs.updateSprites();
-};
+    }
-Stage.prototype.updatePageBlocks = function () {
+    updatePageBlocks () {
        for (var i = 0; i < ScratchJr.stage.pages.length; i++) {
            var page = ScratchJr.stage.pages[i];
            ScriptsPane.updateScriptsPageBlocks(JSON.parse(page.sprites));
        }
-};
+    }
-Stage.prototype.removeFromPage = function (spr) {
+    removeFromPage (spr) {
        var id = spr.id;
        var sc = gn(id + '_scripts');
        var page = this.currentPage;
@ -606,9 +623,9 @@ Stage.prototype.removeFromPage = function (spr) {
            var sprites = page.getSprites();
            page.setCurrentSprite((sprites.length > 0) ? gn(sprites[0]).owner : undefined);
        }
-};
+    }
-Stage.prototype.renumberPageBlocks = function (list) {
+    renumberPageBlocks (list) {
        var pages = this.getPagesID();
        for (var n = 0; n < this.pages.length; n++) {
            var page = this.pages[n];
@ -630,9 +647,9 @@ Stage.prototype.renumberPageBlocks = function (list) {
                }
            }
        }
-};
+    }
-Stage.prototype.clickOnElement = function (e, spr) {
+    clickOnElement (e, spr) {
        if (spr.owner.type == 'text') {
            if (!ScratchJr.inFullscreen) {
                spr.owner.clickOnText(e);
@ -640,13 +657,13 @@ Stage.prototype.clickOnElement = function (e, spr) {
        } else if (spr.owner.type == 'sprite') {
            this.clickOnSprite(e, spr.owner);
        }
-};
+    }
    //Stage clear
    ///////////////////////////////////////
-Stage.prototype.clear = function () {
+    clear () {
        for (var i = 0; i < this.pages.length; i++) {
            this.removePage(this.pages[i]);
        }
@ -654,9 +671,9 @@ Stage.prototype.clear = function () {
        while (this.pagesdiv.childElementCount > 0) {
            this.pagesdiv.removeChild(this.pagesdiv.childNodes[0]);
        }
-};
+    }
-Stage.prototype.removePage = function (p) {
+    removePage (p) {
        var list = JSON.parse(p.sprites);
        for (var j = 0; j < list.length; j++) {
            var name = list[j];
@ -668,13 +685,13 @@ Stage.prototype.removePage = function (p) {
            sprite.parentNode.removeChild(sprite);
        }
        p.div.parentNode.removeChild(p.div);
-};
+    }
    //Debugging hit masks
    ///////////////////////////
-Stage.prototype.sd = function () {
+    sd () {
        var stg = gn('stage');
        var mask = newDiv(gn('stageframe'), stg.offsetLeft + 1, stg.offsetTop + 1, 482, 362,
            {
@ -684,17 +701,17 @@ Stage.prototype.sd = function () {
            });
        mask.setAttribute('id', 'pagemask');
        mask.appendChild(ScratchJr.workingCanvas);
-};
+    }
-Stage.prototype.on = function () {
+    on () {
        gn('pagemask').style.visibility = 'visible';
-};
+    }
-Stage.prototype.off = function () {
+    off () {
        gn('pagemask').style.visibility = 'hidden';
-};
+    }
-Stage.prototype.sm = function (spr) {
+    sm (spr) {
        var stg = gn('stage');
        var w = spr.outline.width;
        var h = spr.outline.height;
@ -706,12 +723,13 @@ Stage.prototype.sm = function (spr) {
            });
        mask.setAttribute('id', 'spritemask');
        mask.appendChild(spr.outline);
-};
+    }
-Stage.prototype.son = function () {
+    son () {
        gn('spritemask').style.visibility = 'visible';
-};
+    }
-Stage.prototype.soff = function () {
+    soff () {
        gn('spritemask').style.visibility = 'hidden';
-};
+    }
 }
--- a/src/editor/engine/Thread.js
+++ b/src/editor/engine/Thread.js
@ -1,4 +1,9 @@
-var Thread = function (s, block) {
+import Prims from './Prims';
 import Grid from '../ui/Grid';
 import Vector from '../../geom/Vector';
 export default class Thread {
    constructor (s, block) {
        this.firstBlock = block.findFirst();
        this.thisblock = block;
        this.oldblock = null;
@ -17,9 +22,9 @@ var Thread = function (s, block) {
        this.isRunning = true;
        this.time = 0; // for debugging purposes
        return this;
-};
+    }
-Thread.prototype.clear = function () {
+    clear () {
        this.stack = [];
        this.firstTime = true;
        this.count = -1;
@ -31,9 +36,9 @@ Thread.prototype.clear = function () {
        this.distance = -1;
        this.called = [];
        this.thisblock = this.firstBlock;
-};
+    }
-Thread.prototype.duplicate = function () {
+    duplicate () {
        var thread = new Thread(this.spr, this.firstBlock);
        thread.count = -1;
        thread.firstBlock = this.firstBlock;
@ -51,9 +56,9 @@ Thread.prototype.duplicate = function () {
        thread.called = this.called;
        thread.isRunning = this.isRunning;
        return thread;
-};
+    }
-Thread.prototype.deselect = function (b) {
+    deselect (b) {
        while (b != null) {
            b.unhighlight();
            if (b.inside) {
@ -62,21 +67,21 @@ Thread.prototype.deselect = function (b) {
            }
            b = b.next;
        }
-};
+    }
-Thread.prototype.stop = function (b) {
+    stop (b) {
        this.stopping(b);
        this.isRunning = false;
-};
+    }
-Thread.prototype.stopping = function (b) {
+    stopping (b) {
        this.endPrim(b);
        this.deselect(this.firstBlock);
        this.clear();
        this.spr.closeBalloon();
-};
+    }
-Thread.prototype.endPrim = function (stopMine) {
+    endPrim (stopMine) {
        if (!this.thisblock) {
            return;
        }
@ -156,4 +161,5 @@ Thread.prototype.endPrim = function (stopMine) {
            s.setHeading(angle);
            break;
        }
-};
+    }
 }
--- a/src/editor/ui/Scripts.js
+++ b/src/editor/ui/Scripts.js
@ -2,7 +2,17 @@
 //  Scripts
 ///////////////////////////////////////////////
-var Scripts = function (spr) {
+import ScratchJr from '../ScratchJr';
 import Block from '../blocks/Block';
 import BlockSpecs from '../blocks/BlockSpecs';
 import ScriptsPane from './ScriptsPane';
 import Events from '../../utils/Events';
 import ScratchAudio from '../../utils/ScratchAudio';
 import {gn, newHTML, setCanvasSize, setProps,
    localx, localy, scaleMultiplier, hit3DRect, isTablet} from '../../utils/lib';
 export default class Scripts {
    constructor (spr) {
        this.flowCaret = null;
        this.spr = spr;
        this.dragList = [];
@ -14,25 +24,25 @@ var Scripts = function (spr) {
        this.sc.owner = this;
        this.sc.top = 0;
        this.sc.left = 0;
-};
+    }
-Scripts.prototype.activate = function () {
+    activate () {
        setProps(this.sc.style, {
            visibility: 'visible'
        });
-};
+    }
-Scripts.prototype.deactivate = function () {
+    deactivate () {
        setProps(this.sc.style, {
            visibility: 'hidden'
        });
-};
+    }
    ////////////////////////////////////////////////
    //  Events MouseDown
    ////////////////////////////////////////////////
-Scripts.prototype.scriptsMouseDown = function (e) {
+    scriptsMouseDown (e) {
        if (isTablet && e.touches && (e.touches.length > 1)) {
            return;
        }
@ -88,13 +98,13 @@ Scripts.prototype.scriptsMouseDown = function (e) {
            return;
        }
        ScriptsPane.dragBackground(e);
-};
+    }
    ////////////////////////////////////////////////
    //  Events MouseUP
    ////////////////////////////////////////////////
-Scripts.prototype.addBlockToScripts = function (b, dx, dy) {
+    addBlockToScripts (b, dx, dy) {
        if ((this.flowCaret != null) && (this.flowCaret.div.parentNode == this.sc)) {
            this.sc.removeChild(this.flowCaret.div);
        }
@ -115,10 +125,10 @@ Scripts.prototype.addBlockToScripts = function (b, dx, dy) {
            this.sendToBack(b.owner);
        }
        this.dragList = [];
-};
+    }
-Scripts.prototype.sendToBack = function (b) {
+    sendToBack (b) {
        if (!b.inside) {
            return;
        }
@ -132,17 +142,17 @@ Scripts.prototype.sendToBack = function (b) {
            you = you.next;
        }
        this.layout(b);
-};
+    }
-Scripts.prototype.snapToPlace = function (drag) {
+    snapToPlace (drag) {
        if ((drag.length < 2) && drag[0].cShape) {
            this.snapCshape(drag);
        } else {
            this.snapBlock(drag);
        }
-};
+    }
-Scripts.prototype.snapBlock = function (drag) {
+    snapBlock (drag) {
        var me = drag[0];
        var last = me.findLast();
        var res = this.findClosest(this.available(0, me, drag), me);
@ -155,9 +165,9 @@ Scripts.prototype.snapBlock = function (drag) {
            return;
        }
        this.snapToDock(res, last, last.cShape ? 2 : 1, drag);
-};
+    }
-Scripts.prototype.snapCshape = function (drag) {
+    snapCshape (drag) {
        var me = drag[0];
        var last = me.findLast();
        var res = this.findClosest(this.available(0, me, drag), me);
@ -177,9 +187,9 @@ Scripts.prototype.snapCshape = function (drag) {
        if (this.isValid(me, res, 2)) {
            this.snapToDock(res, last, 2, drag);
        }
-};
+    }
-Scripts.prototype.isValid = function (me, res, myn) {
+    isValid (me, res, myn) {
        if (res == null) {
            return false;
        }
@ -208,11 +218,11 @@ Scripts.prototype.isValid = function (me, res, myn) {
            return false;
        }
        return true;
-};
+    }
-Scripts.prototype.insideCShape = function (you) {
+    insideCShape (you) {
        while (you != null) {
            var next = you.prev;
            if (next == null) {
@ -225,9 +235,9 @@ Scripts.prototype.insideCShape = function (you) {
            you = next;
        }
        return false;
-};
+    }
-Scripts.prototype.snapToDock = function (choice, me, place, drag) {
+    snapToDock (choice, me, place, drag) {
        if (choice == null) {
            return;
        }
@ -251,9 +261,9 @@ Scripts.prototype.snapToDock = function (choice, me, place, drag) {
            drag[i].moveBlock(drag[i].div.left + bestxy[0], drag[i].div.top + bestxy[1]);
        }
        me.connectBlock(place, choice[0], choice[1]);
-};
+    }
-Scripts.prototype.available = function (myn, me, drag) {
+    available (myn, me, drag) {
        var thisxy = null;
        var res = [];
        var you = null;
@ -286,15 +296,15 @@ Scripts.prototype.available = function (myn, me, drag) {
            }
        }
        return res;
-};
+    }
-Scripts.prototype.magnitude = function (p) {
+    magnitude (p) {
        var x = p[0];
        var y = p[1];
        return Math.sqrt((x * x) + (y * y));
-};
+    }
-Scripts.prototype.findClosest = function (choices) {
+    findClosest (choices) {
        var min = 9999;
        var item = null;
        for (var i = 0; i < choices.length; i++) {
@ -305,9 +315,9 @@ Scripts.prototype.findClosest = function (choices) {
            }
        }
        return item;
-};
+    }
-Scripts.prototype.getDockDxDy = function (b1, n1, b2, n2) {
+    getDockDxDy (b1, n1, b2, n2) {
        var d1 = (b1.resolveDocks())[n1];
        var d2 = (b2.resolveDocks())[n2];
        if (b1 == b2) {
@ -327,14 +337,14 @@ Scripts.prototype.getDockDxDy = function (b1, n1, b2, n2) {
        var x2 = b2.div.left + d2[2] * b2.scale;
        var y2 = b2.div.top + d2[3] * b2.scale;
        return [x1 - x2, y1 - y2];
-};
+    }
-Scripts.prototype.layout = function (block) {
+    layout (block) {
        var first = block.findFirst();
        this.layoutStrip(first);
-};
+    }
-Scripts.prototype.layoutStrip = function (b) {
+    layoutStrip (b) {
        while (b != null) {
            if (b.cShape) {
                this.layoutCshape(b);
@ -342,9 +352,9 @@ Scripts.prototype.layoutStrip = function (b) {
            this.layoutNextBlock(b);
            b = b.next;
        }
-};
+    }
-Scripts.prototype.layoutNextBlock = function (b) {
+    layoutNextBlock (b) {
        if (b.next != null) {
            var you = b.next;
            var bestxy = this.getDockDxDy(b, b.cShape ? 2 : 1, you, 0);
@ -353,9 +363,9 @@ Scripts.prototype.layoutNextBlock = function (b) {
            }
            you.moveBlock(you.div.left + bestxy[0], you.div.top + bestxy[1]);
        }
-};
+    }
-Scripts.prototype.layoutCshape = function (b) {
+    layoutCshape (b) {
        var inside = 0;
        var maxh = 0;
        var oldh = b.hrubberband;
@ -371,14 +381,14 @@ Scripts.prototype.layoutCshape = function (b) {
        b.hrubberband = inside;
        b.redrawRepeat();
        b.moveBlock(b.div.left, b.div.top + (oldh - b.vrubberband) * b.scale);
-};
+    }
-Scripts.prototype.adjustPos = function (me, myn, you, yourn) {
+    adjustPos (me, myn, you, yourn) {
        var bestxy = this.getDockDxDy(you, yourn, me, myn);
        me.moveBlock(me.div.left + bestxy[0], me.div.top + bestxy[1]);
-};
+    }
-Scripts.prototype.adjustCheight = function (b) {
+    adjustCheight (b) {
        var old = b;
        var h = b.blockshape.height;
        b = b.next;
@ -390,9 +400,9 @@ Scripts.prototype.adjustCheight = function (b) {
        }
        h /= (old.scale * window.devicePixelRatio);
        return (h > 66) ? h - 66 : 0;
-};
+    }
-Scripts.prototype.adjustCinside = function (b) {
+    adjustCinside (b) {
        var first = b;
        var last = b;
        while (b != null) {
@ -402,9 +412,9 @@ Scripts.prototype.adjustCinside = function (b) {
        var w = last.blockshape.width / last.scale / window.devicePixelRatio +
            (last.div.left - first.div.left) / last.scale;
        return w - (last.cShape ? 76 : 76);
-};
+    }
-Scripts.prototype.getBlocks = function () {
+    getBlocks () {
        var res = [];
        var sc = this.sc;
        for (var i = 0; i < sc.childElementCount; i++) {
@ -421,17 +431,17 @@ Scripts.prototype.getBlocks = function () {
            res.push(b);
        }
        return res;
-};
+    }
-Scripts.prototype.findGroup = function (b) {
+    findGroup (b) {
        if (b.type != 'block') {
            return [];
        }
        var res = [];
        return this.findingGroup(res, b);
-};
+    }
-Scripts.prototype.findingGroup = function (res, b) {
+    findingGroup (res, b) {
        while (b != null) {
            res.push(b);
            if (b.cShape) {
@ -440,9 +450,9 @@ Scripts.prototype.findingGroup = function (res, b) {
            b = b.next;
        }
        return res;
-};
+    }
-Scripts.prototype.gettopblocks = function () {
+    gettopblocks () {
        var list = this.getBlocks();
        var res = [];
        for (var n = 0; n < list.length; n++) {
@ -454,11 +464,11 @@ Scripts.prototype.gettopblocks = function () {
            }
        }
        return res;
-};
+    }
    // A version of gettopblocks that also returns strips which
    // may be currently starting with a caret and blocks in the dragDiv
-Scripts.prototype.getEncodableBlocks = function () {
+    getEncodableBlocks () {
        var list = [];
        var sc = this.sc;
        for (var i =0; i < sc.childElementCount; i++){
@ -474,16 +484,16 @@ Scripts.prototype.getEncodableBlocks = function () {
            if (list[n].prev == null) res.push(list[n]);
        }
        return res;
-};
+    }
-Scripts.prototype.redisplay = function () {
+    redisplay () {
        var list = this.gettopblocks();
        for (var n = 0; n < list.length; n++) {
            this.layout(list[n]);
        }
-};
+    }
-Scripts.prototype.getBlocksType = function (list) {
+    getBlocksType (list) {
        var res = [];
        var blocks = this.getBlocks();
        for (var i = 0; i < list.length; i++) {
@ -495,9 +505,9 @@ Scripts.prototype.getBlocksType = function (list) {
            }
        }
        return res;
-};
+    }
-Scripts.prototype.prepareCaret = function (b) { // Block data structure
+    prepareCaret (b) { // Block data structure
        var last = b.findLast();
        var bt = this.getCaretType(last);
        if (this.flowCaret != null) {
@ -509,9 +519,9 @@ Scripts.prototype.prepareCaret = function (b) { // Block data structure
        } // don't have a caret
        this.flowCaret = this.newCaret(bt);
        this.flowCaret.isCaret = true;
-};
+    }
-Scripts.prototype.newCaret = function (bt) { // Block data structure
+    newCaret (bt) { // Block data structure
        var parent = this.sc;
        var bbx = new Block(BlockSpecs.defs[bt], false, scaleMultiplier);
        setProps(bbx.div.style, {
@ -524,13 +534,13 @@ Scripts.prototype.newCaret = function (bt) { // Block data structure
        parent.appendChild(bbx.div);
        bbx.moveBlock(0, 0);
        return bbx;
-};
+    }
    ////////////////////////////////////////////
    // Caret
    ///////////////////////////////////////////
-Scripts.prototype.getCaretType = function (b) {
+    getCaretType (b) {
        if (this.dragList[0].aStart) {
            return 'caretstart';
        }
@ -541,13 +551,13 @@ Scripts.prototype.getCaretType = function (b) {
            return 'caretrepeat';
        }
        return 'caretcmd';
-};
+    }
    ////////////////////////////////////////////////
    //  Events MouseMove
    ////////////////////////////////////////////////
-Scripts.prototype.removeCaret = function () {
+    removeCaret () {
        if (this.flowCaret == null) {
            return;
        }
@ -586,9 +596,9 @@ Scripts.prototype.removeCaret = function () {
            this.flowCaret.redrawRepeat();
        }
        this.flowCaret.div.style.visibility = 'hidden';
-};
+    }
-Scripts.prototype.insertCaret = function (x, y) {
+    insertCaret (x, y) {
        if (this.flowCaret == null) {
            return;
        }
@ -600,9 +610,9 @@ Scripts.prototype.insertCaret = function (x, y) {
        if (this.flowCaret.div.style.visibility == 'visible') {
            this.layout(this.flowCaret);
        }
-};
+    }
-Scripts.prototype.deleteBlocks = function () {
+    deleteBlocks () {
        ScratchJr.storyStart('Scripts.prototype.deleteBlocks');
        ScriptsPane.cleanCarets();
        ScratchAudio.sndFX('cut.wav');
@ -616,9 +626,9 @@ Scripts.prototype.deleteBlocks = function () {
            }
            b.div.parentNode.removeChild(b.div);
        }
-};
+    }
-Scripts.prototype.recreateStrip = function (list) {
+    recreateStrip (list) {
        var res = [];
        var b = null;
        var loops = ['repeat'];
@ -670,14 +680,14 @@ Scripts.prototype.recreateStrip = function (list) {
            this.layout(res[0]);
        }
        return res;
-};
+    }
    /////////////////////////////////
    // Load
    ////////////////////////////////
-Scripts.prototype.recreateBlock = function (data) {
+    recreateBlock (data) {
        var op = data[0];
        var val = data[1] == 'null' ? null : data[1];
        var dx = data[2];
@ -696,4 +706,5 @@ Scripts.prototype.recreateBlock = function (data) {
        this.sc.appendChild(bbx.div);
        bbx.update(this.spr);
        return bbx;
-};
+    }
 }
--- a/src/editor/ui/Scroll.js
+++ b/src/editor/ui/Scroll.js
@ -2,7 +2,11 @@
 // Scrolling Pane
 ////////////////////////////////////////////////
-var Scroll = function (div, id, w, h, cfcn, ofcn) {
+import Events from '../../utils/Events';
 import {newDiv, newHTML, CSSTransition3D, isTablet, setCanvasSize} from '../../utils/lib';
 export default class Scroll {
    constructor (div, id, w, h, cfcn, ofcn) {
        this.hasHorizontal = true;
        this.hasVertical = true;
        this.arrowDistance = 6;
@ -17,19 +21,19 @@ var Scroll = function (div, id, w, h, cfcn, ofcn) {
        this.getContent = cfcn;
        this.getObjects = ofcn;
        div.scroll = this; // for now;
-};
+    }
-Scroll.prototype.update = function () {
+    update () {
        this.adjustCanvas();
        this.refresh();
        this.bounceBack();
-};
+    }
    /////////////////////////////////////////////////////////////
    // Arrows
    ////////////////////////////////////////////////////////////
-Scroll.prototype.addArrows = function (sc, w, h) {
+    addArrows (sc, w, h) {
        this.aleft = newHTML('div', 'leftarrow', sc);
        this.aleft.style.height = h + 'px';
        var larrow = newHTML('span', undefined, this.aleft);
@ -86,20 +90,20 @@ Scroll.prototype.addArrows = function (sc, w, h) {
            };
        }
-};
+    }
    /////////////////////////////////////////////////////////////
    // Scrolling
    ////////////////////////////////////////////////////////////
-Scroll.prototype.repositionArrows = function (h) {
+    repositionArrows (h) {
        this.aleft.style.height = h + 'px';
        this.aleft.childNodes[0].style.top = Math.floor((h - this.aleft.childNodes[0].offsetHeight) / 2) + 'px';
        this.aright.style.height = h + 'px';
        this.aright.childNodes[0].style.top = Math.floor((h - this.aright.childNodes[0].offsetHeight) / 2) + 'px';
-};
+    }
-Scroll.prototype.getAdjustment = function (rect) { // rect of the dragg block canvas
+    getAdjustment (rect) { // rect of the dragg block canvas
        var d = this.contents.parentNode; // scripts
        var w = d.offsetWidth;
        var h = d.offsetHeight;
@ -128,9 +132,9 @@ Scroll.prototype.getAdjustment = function (rect) { // rect of the dragg block ca
            return 'left';
        }
        return 'none';
-};
+    }
-Scroll.prototype.bounceBack = function () {
+    bounceBack () {
        var owner = this;
        var p = this.contents; // scriptscontainer
        var bc = this.getContent(); // blockcanvas
@ -198,13 +202,13 @@ Scroll.prototype.bounceBack = function () {
            }
            break;
        }
-};
+    }
    /////////////////////////////////////////////////////////////
    // Refreshing
    ////////////////////////////////////////////////////////////
-Scroll.prototype.refresh = function () {
+    refresh () {
        var p = this.contents; // scriptscontainer
        var bc = this.getContent(); // blockcanvas
        var w = p.offsetWidth;
@ -243,9 +247,9 @@ Scroll.prototype.refresh = function () {
        this.aright.style.visibility = needright;
        this.aup.style.visibility = needup;
        this.adown.style.visibility = needdown;
-};
+    }
-Scroll.prototype.adjustCanvas = function () {
+    adjustCanvas () {
        var bc = this.getContent(); // blockcanvas
        var p = this.contents; // scriptscontainer
        var w = p.offsetWidth;
@ -310,21 +314,21 @@ Scroll.prototype.adjustCanvas = function () {
            this.moveBlocks(-minx, -miny);
            Events.move3D(bc, minx, miny);
        }
-};
+    }
-Scroll.prototype.moveBlocks = function (dx, dy) {
+    moveBlocks (dx, dy) {
        var allblocks = this.getObjects();
        for (var i = 0; i < allblocks.length; i++) {
            var b = allblocks[i];
            b.moveBlock(b.div.left + dx, b.div.top + dy);
        }
-};
+    }
    /////////////////////////////////////////////////////////////
    // Scrolling
    ////////////////////////////////////////////////////////////
-Scroll.prototype.scrolldown = function (e) {
+    scrolldown (e) {
        if (isTablet && e.touches && (e.touches.length > 1)) {
            return;
        }
@ -350,9 +354,9 @@ Scroll.prototype.scrolldown = function (e) {
            }
        };
        CSSTransition3D(sc, transition);
-};
+    }
-Scroll.prototype.scrollup = function (e) {
+    scrollup (e) {
        if (isTablet && e.touches && (e.touches.length > 1)) {
            return;
        }
@ -378,9 +382,9 @@ Scroll.prototype.scrollup = function (e) {
            }
        };
        CSSTransition3D(sc, transition);
-};
+    }
-Scroll.prototype.scrollright = function (e) {
+    scrollright (e) {
        if (isTablet && e.touches && (e.touches.length > 1)) {
            return;
        }
@ -406,9 +410,9 @@ Scroll.prototype.scrollright = function (e) {
            }
        };
        CSSTransition3D(sc, transition);
-};
+    }
-Scroll.prototype.scrollleft = function (e) {
+    scrollleft (e) {
        if (isTablet && e.touches && (e.touches.length > 1)) {
            return;
        }
@ -434,9 +438,9 @@ Scroll.prototype.scrollleft = function (e) {
            }
        };
        CSSTransition3D(sc, transition);
-};
+    }
-Scroll.prototype.fitToScreen = function () {
+    fitToScreen () {
        var p = this.contents;
        var sc = this.getContent();
        var valx = sc.left;
@ -479,4 +483,5 @@ Scroll.prototype.fitToScreen = function () {
            break;
        }
        Events.move3D(sc, valx, valy);
-};
+    }
 }