diff --git a/src/client/haxe/ru/m/tankz/render/IRender.hx b/src/client/haxe/ru/m/tankz/render/IRender.hx
deleted file mode 100755
index d8a3810..0000000
--- a/src/client/haxe/ru/m/tankz/render/IRender.hx
+++ /dev/null
@@ -1,10 +0,0 @@
-package ru.m.tankz.render;
-
-import ru.m.tankz.engine.Engine;
-import haxework.gui.IView;
-
-
-interface IRender extends IView {
-    public function draw(game:Engine):Void;
-    public function reset():Void;
-}
diff --git a/src/client/haxe/ru/m/tankz/render/Render.hx b/src/client/haxe/ru/m/tankz/render/Render.hx
index 858a7f7..df8e95c 100755
--- a/src/client/haxe/ru/m/tankz/render/Render.hx
+++ b/src/client/haxe/ru/m/tankz/render/Render.hx
@@ -1,12 +1,9 @@
 package ru.m.tankz.render;
 
-import ru.m.tankz.core.MobileEntity;
+import flash.display.DisplayObject;
+import Type.ValueType;
+import ru.m.tankz.render.RenderItem;
 import ru.m.tankz.engine.Engine;
-import ru.m.tankz.core.Entity;
-import ru.m.tankz.map.Brick;
-import ru.m.geom.Direction;
-import flash.geom.Matrix;
-import openfl.Assets;
 import ru.m.tankz.core.Bullet;
 import ru.m.tankz.core.Tank;
 import flash.display.Sprite;
@@ -14,64 +11,18 @@ import flash.display.Graphics;
 import haxework.gui.SpriteView;
 
 
-interface IState<T> {
-    public function update(object:T):Bool;
-}
-
-class BrickState implements IState<Brick> {
-    private var type:Int;
-
-    public function new() {}
-
-    public function update(object:Brick):Bool {
-        if (type != object.config.type) {
-            type = object.config.type;
-            return true;
-        }
-        return false;
-    }
-}
-
-class EntityState implements IState<Entity> {
-    private var x:Float;
-    private var y:Float;
-    private var d:Direction;
-    private var type:Int;
-
-    public function new() {}
-
-    public function update(object:Entity):Bool {
-        if (x != object.rect.x || y != object.rect.y || !d.equals(object.rect.direction)) {
-            x = object.rect.x;
-            y = object.rect.y;
-            d = object.rect.direction;
-            return true;
-        }
-        if (Std.is(object, Tank)) {
-            var tank:Tank = cast object;
-            if (tank.config.type != type) {
-                type = tank.config.type;
-                return true;
-            }
-        }
-        return false;
-    }
-}
-
-
-class Render extends SpriteView implements IRender {
+class Render extends SpriteView {
 
     private var backgroundLayer:Sprite;
     private var groundLayer:Sprite;
     private var entryLayer:Sprite;
     private var upLayer:Sprite;
 
-    private var layersForUpdate:Map<Sprite, Bool>;
-    private var states:Map<String, IState<Dynamic>>;
+    private var background:Sprite;
+    private var items:Map<String, RenderItem<Dynamic>>;
 
     public function new() {
         super();
-        layersForUpdate = new Map();
         backgroundLayer = new Sprite();
         groundLayer = new Sprite();
         entryLayer = new Sprite();
@@ -83,160 +34,61 @@ class Render extends SpriteView implements IRender {
         reset();
     }
 
-    private function invalidateLayers(game:Engine):Void {
-        for (brick in game.map.bricks) {
-            if (!states.exists(brick.key)) {
-                states[brick.key] = new BrickState();
-            }
-            if (states.get(brick.key).update(brick)) {
-                layersForUpdate[groundLayer] = true;
-                layersForUpdate[upLayer] = true;
-            }
-        }
-        layersForUpdate[groundLayer] = true; //ToDo:
-        for (entry in game.entities) {
-            if (!states.exists(entry.key)) {
-                states[entry.key] = new EntityState();
-            }
-            if (states.get(entry.key).update(entry)) {
-                layersForUpdate[entryLayer] = true;
-            }
-        }
-        for (key in game.removedEntities) {
-            if (states.exists(key)) {
-                states.remove(key);
-                layersForUpdate[entryLayer] = true;
-            }
-        }
-    }
-
     private function drawBackground(game:Engine):Void {
         var mapWidth = game.map.gridWidth * game.map.cellWidth;
         var mapHeight = game.map.gridHeight * game.map.cellHeight;
-
-        if (layersForUpdate[backgroundLayer]) {
-            var g:Graphics = backgroundLayer.graphics;
-            g.clear();
-            g.beginFill(0x000000);
-            g.drawRect(0, 0, mapWidth, mapHeight);
-            g.endFill();
-            if (contentSize) {
-                width = mapWidth;
-                height = mapHeight;
-            }
-            layersForUpdate[backgroundLayer] = false;
-        }
-    }
-
-    private function drawMap(game:Engine):Void {
-        if (layersForUpdate[groundLayer] || layersForUpdate[upLayer]) {
-            groundLayer.graphics.clear();
-            upLayer.graphics.clear();
-            for (brick in game.map.bricks) if (!brick.destroyed) {
-                var g:Graphics = null;
-                if (brick.config.layer < 3) {
-                    g = groundLayer.graphics;
-                } else if (brick.config.layer >= 3) {
-                    g = upLayer.graphics;
-                }
-                if (g != null) {
-                    g.beginBitmapFill(Assets.getBitmapData('resources/images/map/map_${brick.config.type}.png'));
-                    g.drawRect(
-                        brick.rect.x,
-                        brick.rect.y,
-                        brick.rect.width,
-                        brick.rect.height
-                    );
-                    for (cell in brick.cells.iterator()) {
-                        if (cell.destroyed) {
-                            g.beginFill(0x000000);
-                            g.drawRect(
-                                cell.rect.x,
-                                cell.rect.y,
-                                cell.rect.width,
-                                cell.rect.height
-                            );
-                        }
-                    }
-                    g.endFill();
-                }
-            }
-
-            // Debug cells
-            /*var g = groundLayer.graphics;
-            for (c in game.map.grid.cells.iterator()) {
-                var color:Int = 0x000000;
-                if (c.armor == 1) {
-                    color = 0xffcc00;
-                } else if (c.armor > 1) {
-                    color = 0x606060;
-                } else if (c.layer == 0) {
-                    color = 0xffff90;
-                } else if (c.layer == 1) {
-                    color = 0x0000ff;
-                }else if (c.layer > 1) {
-                    color = 0x00ff00;
-                }
-                g.beginFill(color);
-                g.drawRect(c.rect.x, c.rect.y, c.rect.width, c.rect.height);
-                g.endFill();
-            }
-            layersForUpdate[groundLayer] = false;
-            layersForUpdate[upLayer] = false;*/
-        }
-    }
-
-    public function drawEntities(game:Engine):Void {
-        if (layersForUpdate[entryLayer]) {
-            var g:Graphics = entryLayer.graphics;
-            g.clear();
-            for (ent in game.entities) {
-                var image:String = null;
-                if (Std.is(ent, Tank)) {
-                    var tank:Tank = cast ent;
-                    image = 'resources/images/tank/${tank.config.group}/tank_${tank.config.group.charAt(0)}${tank.config.type}_${tank.index}-0.png';
-                } else if (Std.is(ent, Bullet)) {
-                    var bullet:Bullet = cast ent;
-                    image = 'resources/images/bullet/bullet_${bullet.config.piercing > 1 ? 1 : 0}.png';
-                } else {
-                    image = 'ERROR'; // ToDo:
-                }
-                var m = new Matrix();
-                if (Std.is(ent, MobileEntity)) {
-                    m.rotate(calcRotate(cast(ent, MobileEntity).direction));
-                }
-                m.translate(ent.rect.x, ent.rect.y);
-                g.beginBitmapFill(Assets.getBitmapData(image), m, true, true);
-                g.drawRect(ent.rect.x, ent.rect.y, ent.rect.width, ent.rect.height);
-                g.endFill();
-            }
-            layersForUpdate[entryLayer] = false;
+        var g:Graphics = backgroundLayer.graphics;
+        g.clear();
+        g.beginFill(0x000000);
+        g.drawRect(0, 0, mapWidth, mapHeight);
+        g.endFill();
+        if (contentSize) {
+            width = mapWidth;
+            height = mapHeight;
         }
     }
 
     public function draw(game:Engine):Void {
-        invalidateLayers(game);
-        drawBackground(game);
-        drawMap(game);
-        drawEntities(game);
+        for (brick in game.map.bricks) {
+            if (!items.exists(brick.key)) {
+                items[brick.key] = new BrickItem(brick);
+                if (brick.config.layer > 2) {
+                    upLayer.addChild(items[brick.key].view);
+                } else {
+                    groundLayer.addChild(items[brick.key].view);
+                }
+            }
+        }
+        for (entity in game.entities) {
+            if (!items.exists(entity.key)) {
+                items[entity.key] = switch (Type.typeof(entity)) {
+                    case ValueType.TClass(Tank): cast new TankItem(cast entity);
+                    case ValueType.TClass(Bullet): cast new BulletItem(cast entity);
+                    case x: null;
+                }
+                entryLayer.addChild(items[entity.key].view);
+            }
+        }
+        for (key in game.removedEntities) {
+            if (items.exists(key)) {
+                var view:DisplayObject = items[key].view;
+                view.parent.removeChild(view);
+                items.remove(key);
+            }
+        }
+        for (item in items) {
+            item.update();
+        }
+        if (background == null) {
+            drawBackground(game);
+        }
     }
 
     public function reset():Void {
-        states = new Map<String, IState<Dynamic>>();
-        layersForUpdate[backgroundLayer] = true;
-    }
-
-    private function calcRotate(direction:Direction):Float {
-        return (if (direction == Direction.RIGHT) {
-            0;
-        } else if (direction == Direction.LEFT) {
-            180;
-        } else if (direction == Direction.TOP) {
-            270;
-        } else if (direction == Direction.BOTTOM) {
-            90;
-        } else {
-            0;
-        }) * (Math.PI / 180);
+        items = new Map<String, RenderItem<Dynamic>>();
+        if (background != null) {
+            backgroundLayer.removeChild(background);
+            background = null;
+        }
     }
 }
diff --git a/src/client/haxe/ru/m/tankz/render/RenderItem.hx b/src/client/haxe/ru/m/tankz/render/RenderItem.hx
new file mode 100644
index 0000000..290fbfc
--- /dev/null
+++ b/src/client/haxe/ru/m/tankz/render/RenderItem.hx
@@ -0,0 +1,131 @@
+package ru.m.tankz.render;
+
+import flash.display.DisplayObject;
+import flash.display.Shape;
+import ru.m.geom.Direction;
+import ru.m.geom.Rectangle;
+import ru.m.tankz.core.Bullet;
+import ru.m.tankz.map.Brick;
+import openfl.Assets;
+import ru.m.tankz.core.Tank;
+import flash.display.Bitmap;
+
+
+typedef TRectangle = {
+    var rect(default, null):Rectangle;
+}
+
+
+class RenderItem<T:TRectangle> {
+
+    public var value(default, null):T;
+    public var view(default, null):DisplayObject;
+
+    private var bitmap:Bitmap;
+
+    public function new(value:T) {
+        this.value = value;
+        this.bitmap = new Bitmap();
+        this.view = bitmap;
+        redraw();
+    }
+
+    public function redraw():Void {
+        bitmap.bitmapData = Assets.getBitmapData(getImage());
+    }
+
+    public function update():Void {
+        var rect = value.rect;
+        view.rotation = calcRotate(rect.direction);
+        view.x = rect.x - rect.width * (rect.direction.x + 1) / 2 + rect.width * (rect.direction.y + 1) / 2 + 0.5 * rect.width;
+        view.y = rect.y - rect.height * (rect.direction.x + 1) / 2 - rect.height * (rect.direction.y + 1) / 2 + 1.5 * rect.height;
+    }
+
+    private function getImage():String {
+        return 'ERROR';
+    }
+
+    private static function calcRotate(direction:Direction):Float {
+        return (if (direction == Direction.RIGHT) {
+            0;
+        } else if (direction == Direction.LEFT) {
+            180;
+        } else if (direction == Direction.TOP) {
+            270;
+        } else if (direction == Direction.BOTTOM) {
+            90;
+        } else {
+            0;
+        });
+    }
+}
+
+
+class BrickItem extends RenderItem<Brick> {
+
+    private var shape:Shape;
+    private var broken:Int;
+
+    public function new(value:Brick) {
+        this.shape = new Shape();
+        super(value);
+        this.view = shape;
+    }
+
+    override public function redraw():Void {
+        var image = Assets.getBitmapData(getImage());
+        var g = shape.graphics;
+        g.clear();
+        if (value.destroyed) return;
+        g.beginBitmapFill(image);
+        g.drawRect(0, 0, value.rect.width, value.rect.height);
+        for (c in value.cells) {
+            if (c.destroyed) {
+                g.beginFill(0x000000);
+                g.drawRect(c.rect.x - value.rect.x, c.rect.y - value.rect.y, c.rect.width, c.rect.height);
+            }
+        }
+        g.endFill();
+    }
+
+    override public function update():Void {
+        super.update();
+        var b = value.broken;
+        if (b != this.broken) {
+            this.broken = b;
+            redraw();
+        }
+    }
+
+    override private function getImage():String {
+        return 'resources/images/map/map_${value.config.type}.png';
+    }
+}
+
+
+
+class TankItem extends RenderItem<Tank> {
+
+    private var type:Int;
+
+    override private function getImage():String {
+        return 'resources/images/tank/${value.config.group}/tank_${value.config.group.charAt(0)}${value.config.type}_${value.index}-0.png';
+    }
+
+    override public function update():Void {
+        super.update();
+        var t = value.config.type;
+        if (t != this.type) {
+            this.type = t;
+            redraw();
+        }
+    }
+}
+
+
+class BulletItem extends RenderItem<Bullet> {
+
+    override private function getImage():String {
+        return 'resources/images/bullet/bullet_${value.config.piercing > 1 ? 1 : 0}.png';
+    }
+}
diff --git a/src/client/haxe/ru/m/tankz/view/frames/GameFrame.hx b/src/client/haxe/ru/m/tankz/view/frames/GameFrame.hx
index df0cb27..943483d 100755
--- a/src/client/haxe/ru/m/tankz/view/frames/GameFrame.hx
+++ b/src/client/haxe/ru/m/tankz/view/frames/GameFrame.hx
@@ -1,5 +1,6 @@
 package ru.m.tankz.view.frames;
 
+import haxe.Timer;
 import ru.m.tankz.config.ConfigBundle;
 import ru.m.tankz.proto.core.GameType;
 import ru.m.tankz.proto.core.Game;
@@ -23,6 +24,7 @@ class GameFrame extends VGroupView implements ViewBuilder implements IPacketHand
 
     private var engine:Engine;
     private var controls:Map<Int, PlayerControl>;
+    private var timer:Timer;
 
     public function init():Void {
         engine = new Engine();
@@ -33,24 +35,33 @@ class GameFrame extends VGroupView implements ViewBuilder implements IPacketHand
         var game:Game = Provider.get(Game);
         engine.init(ConfigBundle.get(GameType.CLASSIC, 0));
         engine.initTanks(game.players);
-        content.addEventListener(Event.ENTER_FRAME, updateGame);
+        content.addEventListener(Event.ENTER_FRAME, redraw);
         for (index in 0...game.players.length) {
             var playerId:Int = game.players[index].id;
             controls.set(playerId, PlayerControl.forPlayer(index, playerId, engine));
         }
         Provider.get(IConnection).packetHandler.addListener(this);
         render.draw(engine);
+        timer = new Timer(10);
+        timer.run = updateEngine;
     }
 
     public function onHide():Void {
         Provider.get(IConnection).packetHandler.removeListener(this);
-        content.removeEventListener(Event.ENTER_FRAME, updateGame);
+        if (timer != null) {
+            timer.stop();
+            timer = null;
+        }
+        content.removeEventListener(Event.ENTER_FRAME, redraw);
         engine.clear();
         render.reset();
     }
 
-    private function updateGame(_):Void {
+    private function updateEngine():Void {
         engine.update();
+    }
+
+    private function redraw(_):Void {
         render.draw(engine);
     }
 
diff --git a/src/common/haxe/ru/m/tankz/core/MobileEntity.hx b/src/common/haxe/ru/m/tankz/core/MobileEntity.hx
index 0d7f963..db470a2 100755
--- a/src/common/haxe/ru/m/tankz/core/MobileEntity.hx
+++ b/src/common/haxe/ru/m/tankz/core/MobileEntity.hx
@@ -10,24 +10,21 @@ class MobileEntity extends Entity {
 
     public var layer(default, null):Int;
     public var speed(default, null):Float;
-    public var direction(default, default):Direction;
 
     public function new(rect:Rectangle, speed:Float, direction:Direction) {
         super(rect);
         this.speed = speed;
-        this.direction = direction;
         this.layer = 0;
         this.mx = 0;
         this.my = 0;
     }
 
     public function move(direction:Direction):Void {
-        if (this.direction != direction) {
+        if (this.rect.direction != direction) {
             this.rect.direction = direction;
-            this.direction = direction;
         }
-        mx = direction.x * speed;
-        my = direction.y * speed;
+        mx = rect.direction.x * speed;
+        my = rect.direction.y * speed;
     }
 
     public function stop():Void {
diff --git a/src/common/haxe/ru/m/tankz/core/Tank.hx b/src/common/haxe/ru/m/tankz/core/Tank.hx
index ebefd36..7dab410 100755
--- a/src/common/haxe/ru/m/tankz/core/Tank.hx
+++ b/src/common/haxe/ru/m/tankz/core/Tank.hx
@@ -28,8 +28,9 @@ class Tank extends MobileEntity {
     }
 
     private function set_config(value:TankConfig):TankConfig {
+        var d = rect.direction;
         rect = new Rectangle(rect.x, rect.y, value.width, value.height);
-        rect.direction = direction;
+        rect.direction = d;
         speed = value.speed;
         config = value;
         return value;
@@ -38,8 +39,8 @@ class Tank extends MobileEntity {
     public function shot():Null<Bullet> {
         if (bulletsCounter >= config.bullets) return null;
         var bullet = new Bullet(id, config, config.bullet);
-        bullet.rect.center = rect.center.add(new Point(rect.width / 4 * direction.x, rect.height / 4 * direction.y));
-        bullet.move(direction);
+        bullet.rect.center = rect.center.add(new Point(rect.width / 4 * rect.direction.x, rect.height / 4 * rect.direction.y));
+        bullet.move(rect.direction);
         bulletsCounter++;
         return bullet;
     }
diff --git a/src/common/haxe/ru/m/tankz/engine/Engine.hx b/src/common/haxe/ru/m/tankz/engine/Engine.hx
index 43063d7..35471e5 100755
--- a/src/common/haxe/ru/m/tankz/engine/Engine.hx
+++ b/src/common/haxe/ru/m/tankz/engine/Engine.hx
@@ -39,7 +39,7 @@ class Engine {
     private function buildTank(index:Int, config:TankConfig, point:SpawnPoint):Tank {
         var tank = new Tank(index, config);
         tank.rect.center = new Point((point.x + 1) * map.cellWidth, (point.y + 1) * map.cellHeight);
-        tank.direction = Direction.fromString(point.direction);
+        tank.rect.direction = Direction.fromString(point.direction);
         return tank;
     }
 
@@ -66,8 +66,8 @@ class Engine {
                 .setObjectId(tank.id)
                 .setX(tank.rect.x)
                 .setY(tank.rect.y)
-                .setDirectionX(tank.direction.x)
-                .setDirectionY(tank.direction.y)
+                .setDirectionX(tank.rect.direction.x)
+                .setDirectionY(tank.rect.direction.y)
             );
         }
 
@@ -214,7 +214,7 @@ class Engine {
                 }
 
                 for (other in entities.iterator()) {
-                    if (other != ent) {
+                    if (other != ent && other != null) {
                         if (other.rect.intersection2(side)) {
                         //if (ent.rect.intersection(other.rect)) {
                             var funName = 'collision${ent.type}${other.type}';
diff --git a/src/common/haxe/ru/m/tankz/map/Brick.hx b/src/common/haxe/ru/m/tankz/map/Brick.hx
index 094e784..d94fcd5 100644
--- a/src/common/haxe/ru/m/tankz/map/Brick.hx
+++ b/src/common/haxe/ru/m/tankz/map/Brick.hx
@@ -24,6 +24,7 @@ class Brick implements IKey {
 
     public var rect(default, null):Rectangle;
     public var cells(default, null):HashMap<Point, GridCell>;
+    public var broken(get, null):Int;
     public var destroyed(get, set):Bool;
 
     public function new(mapConfig:MapConfig, config:BrickConfig, cellX:Int, cellY:Int, cells:HashMap<Point, GridCell>) {
@@ -40,6 +41,16 @@ class Brick implements IKey {
         );
     }
 
+    public function get_broken():Int {
+        var i:Int = 0;
+        for (c in cells.iterator()) {
+            if (c.destroyed) {
+               i++;
+            }
+        }
+        return i;
+    }
+
     public function get_destroyed():Bool {
         var i = 0;
         var result:Bool = false;