GameScene.cpp - Hosted on DriveHQ Cloud IT Platform

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#include "GameScene.h"

#include "RigidEntity.h"
#include "LoadedVisObj.h"
#include "CompoundEntity.h"
#include "ControllablePhysObj.h"
//#include "SkinnedEntity.h"

#include "RecordReplay.h"
#include "ScriptEngine.h"

GameScene* GameScene::theSingleton = NULL;
Real GameScene::GravityValue = -9.81f;

#define CLONE_STR(dest,source) {dest = new char[strlen(source)+1];strcpy(dest,source);}
String trimNumericSuffix(const String& src){
	const char* src_str = src.c_str();
	char* dest;
	CLONE_STR(dest,src_str);
	int alphaCount=0;
	char* curChar = dest;
	while ((*curChar<'0' || *curChar>'9') && (*curChar != 0)){//while not a number and not null
		alphaCount++;
		curChar++;
	};
	myassert(alphaCount<=strlen(dest));
	char* trimedStr = new char[alphaCount];
	char* curTrimedChar = trimedStr;
	curChar = dest;
	int count =0;
	while (count < alphaCount){
		*curTrimedChar = *curChar;
		curChar++;
		curTrimedChar++;
		count++;
	};
	*curTrimedChar=0; //end the newly created string
	SAFE_DELETE_ARRAY(dest);
	return String(trimedStr);
}

GameScene::GameScene(const String& resourceName, SceneManager* pSceneManager, RenderWindow* renderWindow, Camera* camera,
					 NxPhysicsSDK* pPhysicSDK, NxScene* pPhysicScene):
		mSceneMgr(pSceneManager),mRenderWindow(renderWindow),mCamera(camera),mPhysSDK(pPhysicSDK),mPhysScene(pPhysicScene),
		mIsRunning(true){
	myassert(theSingleton==NULL);
	theSingleton = this;
	//load visual objects
	OgreMax::OgreMaxScene* loadedScene = new OgreMax::OgreMaxScene();
	loadedScene->Load(resourceName+".scene",mRenderWindow,OgreMax::OgreMaxScene::NO_OPTIONS,mSceneMgr,mSceneMgr->getRootSceneNode());

	//iterate through all scene node and loaded the corresponding physical object
	for (Node::ChildNodeIterator iter = loadedScene->GetSceneManager()->getRootSceneNode()->getChildIterator();iter.hasMoreElements();){
		SceneNode* sceneNode = (SceneNode*)iter.getNext();
		myassert(sceneNode!=NULL);
		String name = sceneNode->getName();
		String trimedName = trimNumericSuffix(name);
		//if (sceneNode->getChildIterator().hasMoreElements()){//group
		//	CompoundVisObj* visObj = new CompoundVisObj(sceneNode);
		//	CompoundEntity* compoundEntity = new CompoundEntity(trimedName,"base",visObj);
		//}else{//single object
		//	VisualObject* visObj = new VisualObject(sceneNode);
		//	RigidEntity* rigidEntity = new RigidEntity(trimedName,visObj);
		//}
		VisualObject* visObj = new VisualObject(sceneNode);
		RigidEntity* rigidEntity = new RigidEntity(trimedName,visObj);
	}
	SAFE_DELETE(loadedScene);//delete the loader
	mInputManager = new InputManager();
	RecordReplay* pRecordReplay = new RecordReplay();
	ScriptEngine* pScriptEngine = new ScriptEngine();
}

GameScene::~GameScene(){
	while (mEntityPool.GetPool().size()>0){
		GameEntity* firstElement = (GameEntity*)*(mEntityPool.GetPool().begin());
		SAFE_DELETE(firstElement);
	}
	SAFE_DELETE(mInputManager);

	if(mPhysSDK!= NULL)
	{
		if(mPhysScene != NULL) mPhysSDK->releaseScene(*mPhysScene);
		mPhysScene = NULL;
		NxReleasePhysicsSDK(mPhysSDK);
		mPhysSDK = NULL;
	}

	delete recordReplay;//cannot use SAFE_DELETE in this case!

	//mEntityPool.Clear();//TODO: review this line
	theSingleton = NULL;
}

//void GameScene::NXU_notifyActor(NxActor *actor, const char *userProperties){
//	//SceneNode* visualObjNode = mSceneMgr->getSceneNode(actor->getName());
//	//VisualObject* visObj = new VisualObject(visualObjNode);
//	//RigidPhysObj* ridObj = new RigidPhysObj(actor,visObj);
//	//GameEntity* entity = new GameEntity(visObj,ridObj);
//}

void GameScene::FrameMove(Real elapsedTime){
	if (mIsRunning){
		//if (elapsedTime<1.0f/60.0f) elapsedTime = 1.0f/60.0f;
		if (elapsedTime>1.0f/15.0f) elapsedTime = 1.0f/15.0f;//limit the speed!
		elapsedTime = recordReplay->funcWrapper(elapsedTime);
		//elapsedTime = 1.0f/60.0f;
		//printf("%f\n",elapsedTime);

		for (list<MyListElement*>::iterator iter = mEntityPool.GetPool().begin();
			iter!=mEntityPool.GetPool().end();
			iter++){
				(static_cast<GameEntity*>(*iter))->FrameMove(elapsedTime);		
		}
		ControllablePhysObj::UpdateAllControllablePhysObj();
		mInputManager->FrameMove(elapsedTime);

		mPhysScene->simulate(elapsedTime);
		mPhysScene->flushStream();
		mPhysScene->fetchResults(NX_RIGID_BODY_FINISHED, true);
	}
}

PhysicalEventHandler* GameScene::RayCastClosest(const Vec3& from, const Vec3& direction, Vec3* hitPosition, Vec3* hitNormal){
	NxRaycastHit hit;
	NxShape* shape = mPhysScene->raycastClosestShape(NxRay(from,(Vec3)(direction.normalisedCopy())),NX_ALL_SHAPES,hit,-1,3.40e+38,
		NX_RAYCAST_IMPACT | NX_RAYCAST_NORMAL );
	if (shape!=NULL){
		if (shape->getActor().userData != NULL){
			if (hitPosition!=NULL) *hitPosition = hit.worldImpact;
			if (hitNormal!=NULL) *hitNormal = hit.worldNormal;
			return static_cast<PhysicalEventHandler*>(shape->getActor().userData);
		}else return NULL;
	}else return NULL;
}


void GameScene::_GetRayCameraToViewport(const Vec3& mousePos, Vec3& from, Vec3& direction){
	Ray rr = mCamera->getCameraToViewportRay((float)mousePos.x/mRenderWindow->getViewport(0)->getActualWidth(),
		(float)mousePos.y/mRenderWindow->getViewport(0)->getActualHeight());
	from = rr.getOrigin();
	from = recordReplay->funcWrapper(from);
	//from.x = recordReplay->funcWrapper(from.x);
	//from.y = recordReplay->funcWrapper(from.y);
	//from.z = recordReplay->funcWrapper(from.z);
	direction = rr.getDirection();
	direction = recordReplay->funcWrapper(direction);
	//direction.x = recordReplay->funcWrapper(direction.x);
	//direction.y = recordReplay->funcWrapper(direction.y);
	//direction.z = recordReplay->funcWrapper(direction.z);
}

void GameScene::FrustumCheck(const Vec3& mouseTopLeft, const Vec3& mouseBottomRight, void (*callback)(PhysicalEventHandler*)){
	//this->mPhysScene->cullShapes(4,,NX_ALL_SHAPES,)
};
GameScene.cpp
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