leapMotionFrameStore.cpp

Public Variables

MODULE_END 

MODULE_INIT 

MODULE_SHUTDOWN 

Public Variables

 MODULE_END 

 MODULE_INIT 

 MODULE_SHUTDOWN 

  1
  2//-----------------------------------------------------------------------------
  3// Copyright (c) 2012 GarageGames, LLC
  4//
  5// Permission is hereby granted, free of charge, to any person obtaining a copy
  6// of this software and associated documentation files (the "Software"), to
  7// deal in the Software without restriction, including without limitation the
  8// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
  9// sell copies of the Software, and to permit persons to whom the Software is
 10// furnished to do so, subject to the following conditions:
 11//
 12// The above copyright notice and this permission notice shall be included in
 13// all copies or substantial portions of the Software.
 14//
 15// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 16// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 17// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 18// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 19// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 20// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 21// IN THE SOFTWARE.
 22//-----------------------------------------------------------------------------
 23
 24#include "platform/input/leapMotion/leapMotionFrameStore.h"
 25#include "platform/input/leapMotion/leapMotionFrame.h"
 26#include "core/module.h"
 27#include "console/simSet.h"
 28#include "console/consoleTypes.h"
 29
 30MODULE_BEGIN( LeapMotionFrameStore )
 31
 32   MODULE_INIT_AFTER( LeapMotionDevice )
 33   MODULE_INIT_AFTER( Sim )
 34   MODULE_SHUTDOWN_BEFORE( Sim )
 35   MODULE_SHUTDOWN_BEFORE( LeapMotionDevice )
 36
 37   MODULE_INIT
 38   {
 39      LeapMotionFrameStore::staticInit();
 40      ManagedSingleton< LeapMotionFrameStore >::createSingleton();
 41   }
 42   
 43   MODULE_SHUTDOWN
 44   {
 45      ManagedSingleton< LeapMotionFrameStore >::deleteSingleton();
 46   }
 47
 48MODULE_END;
 49
 50S32 LeapMotionFrameStore::smMaximumFramesStored = 30;
 51
 52SimGroup* LeapMotionFrameStore::smFrameGroup = NULL;
 53
 54LeapMotionFrameStore::LeapMotionFrameStore()
 55{
 56   // Set up the SimGroup to store our frames
 57   smFrameGroup = new SimGroup();
 58   smFrameGroup->registerObject("LeapMotionFrameGroup");
 59   smFrameGroup->setNameChangeAllowed(false);
 60   Sim::getRootGroup()->addObject(smFrameGroup);
 61}
 62
 63LeapMotionFrameStore::~LeapMotionFrameStore()
 64{
 65   if(smFrameGroup)
 66   {
 67      smFrameGroup->deleteObject();
 68      smFrameGroup = NULL;
 69   }
 70}
 71
 72void LeapMotionFrameStore::staticInit()
 73{
 74   Con::addVariable("LeapMotion::MaximumFramesStored", TypeS32, &smMaximumFramesStored, 
 75      "@brief The maximum number of frames to keep when $LeapMotion::GenerateWholeFrameEvents is true.\n\n"
 76      "@ingroup Game");
 77}
 78
 79S32 LeapMotionFrameStore::generateNewFrame(const Leap::Frame& frame, const F32& maxHandAxisRadius)
 80{
 81   // Make sure our group has been created
 82   if(!smFrameGroup)
 83      return 0;
 84
 85   // Either create a new frame object or pull one off the end
 86   S32 frameID = 0;
 87   if(smFrameGroup->size() >= smMaximumFramesStored)
 88   {
 89      // Make the last frame the first and update
 90      LeapMotionFrame* frameObj = static_cast<LeapMotionFrame*>(smFrameGroup->last());
 91      smFrameGroup->bringObjectToFront(frameObj);
 92      frameObj->copyFromFrame(frame, maxHandAxisRadius);
 93      frameID = frameObj->getId();
 94   }
 95   else
 96   {
 97      // Create a new frame and add it to the front of the list
 98      LeapMotionFrame* frameObj = new LeapMotionFrame();
 99      frameObj->registerObject();
100      smFrameGroup->addObject(frameObj);
101      smFrameGroup->bringObjectToFront(frameObj);
102      frameObj->copyFromFrame(frame, maxHandAxisRadius);
103      frameID = frameObj->getId();
104   }
105
106   return frameID;
107}
108