[nacltoons] Add design resolution.

nacltoons/src/physics_layer.h

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 #ifndef PHYSICS_LAYER_H_
 #define PHYSICS_LAYER_H_
 
 #include "cocos2d.h"
 #include "Box2D/Box2D.h"
 
 #ifdef COCOS2D_DEBUG
@@ skipping 32 matching lines @@
 
 #ifdef COCOS2D_DEBUG
   void ToggleDebug();
 #endif
 
  private:
   // Called by ccTouchesMoved to draw between two points
   void DrawLine(CCPoint& start, CCPoint& end);
   // Called by ccTouchesBegan to draw a single point.
   void DrawPoint(CCPoint& location);
+  // Clamp brush location to within the visible area
+  void ClampBrushLocation(CCPoint& point);
 
   void AddLineToBody(b2Body *body, CCPoint start, CCPoint end);
   void AddSphereToBody(b2Body *body, CCPoint* location);
   void AddShapeToBody(b2Body *body, b2Shape* shape);
 
   // Create a new render target for drawing into
   void CreateRenderTarget();
 
   // Create a physics object based on the points that were drawn.
   b2Body* CreatePhysicsBody();
@@ skipping 34 matching lines @@
 
 #ifdef COCOS2D_DEBUG
   // Debug drawing support for Box2D.
   GLESDebugDraw* box2d_debug_draw_;
   // Flag to enable drawing of Box2D debug data.
   bool debug_enabled_;
 #endif
 };
 
 #endif  // PHYSICS_LAYER_H_