#include <iostream>
#include <OgreMath.h>
#include "GameData.h"
#include "character.h"
#include "controller.h"
#if 0
#define CAM_HEIGHT 1.6f // height of camera above character's center of mass
CharacterController::CharacterController(Ogre::SceneNode *camNode,
					 Ogre::Camera *cam,
					 Ogre::SceneManager *scnMgr,
					 Character *character)
	: mCameraNode(camNode)
	, mCamera(cam)
	, mScnMgr(scnMgr)
	, mPivotPitch(0)
	, mVerticalVelocity(0)
	, mRunning(false)
	, mCharacter(character)
	, mCameraPivot(nullptr)
{
	setupCamera();
}
CharacterController::~CharacterController()
{
}
void CharacterController::setupCamera()
{
	// create a pivot at roughly the character's shoulder
	mCameraPivot = mScnMgr->getRootSceneNode()->createChildSceneNode();
	mCameraGoal =
		mCameraPivot->createChildSceneNode(Ogre::Vector3(0, 2, 3));
	mCameraNode->setPosition(mCameraPivot->getPosition() +
				 mCameraGoal->getPosition());
	mCameraPivot->setFixedYawAxis(true);
	mCameraGoal->setFixedYawAxis(true);
	mCameraNode->setFixedYawAxis(true);
	// our model is quite small, so reduce the clipping planes
	mCamera->setNearClipDistance(0.1f);
	mCamera->setFarClipDistance(700);

	mPivotPitch = 0;
	mKeyDirection = Ogre::Vector3::ZERO;
	mVerticalVelocity = 0;
	std::cout << "ORIGINAL: " << mCameraNode->getPosition() << "\n";
}
bool CharacterController::keyPressed(const OgreBites::KeyboardEvent &evt)
{
	OgreBites::Keycode key = evt.keysym.sym;
	if (key == 'q') {
		/* ... */
	} else if (key == 'e') {
	} else if (key == 'w')
		mKeyDirection.z = -1;
	else if (key == 'a')
		mKeyDirection.x = -1;
	else if (key == 's')
		mKeyDirection.z = 1;
	else if (key == 'd')
		mKeyDirection.x = 1;
	if (key == OgreBites::SDLK_LSHIFT)
		mRunning = true;
	if (!mKeyDirection.isZeroLength() && mCharacter->isIdle()) {
		if (mRunning)
			mCharacter->act_run();
		else
			mCharacter->act_walk();
		// std::cout << "Walking\n";
	} else if (!mKeyDirection.isZeroLength() && mCharacter->isWalking() &&
		   mRunning)
		mCharacter->act_run();
	return true;
}
bool CharacterController::keyReleased(const OgreBites::KeyboardEvent &evt)
{
	OgreBites::Keycode key = evt.keysym.sym;
	if (key == 'w' && mKeyDirection.z == -1)
		mKeyDirection.z = 0;
	else if (key == 'a' && mKeyDirection.x == -1)
		mKeyDirection.x = 0;
	else if (key == 's' && mKeyDirection.z == 1)
		mKeyDirection.z = 0;
	else if (key == 'd' && mKeyDirection.x == 1)
		mKeyDirection.x = 0;
	if (key == OgreBites::SDLK_LSHIFT)
		mRunning = false;

	if (mKeyDirection.isZeroLength() && mCharacter->isMoving())
		mCharacter->act_idle();
	else if (!mKeyDirection.isZeroLength() && mCharacter->isRunning() &&
		 !mRunning)
		mCharacter->act_walk();

	return true;
}
bool CharacterController::mouseMoved(const OgreBites::MouseMotionEvent &evt)
{
	// update camera goal based on mouse movement
	updateCameraGoal(-0.18f * evt.xrel, -0.12f * evt.yrel, 0);
	return true;
}
bool CharacterController::mouseWheelRolled(const OgreBites::MouseWheelEvent &evt)
{
	// update camera goal based on mouse movement
	updateCameraGoal(0, 0, -0.15f * evt.y);
	return true;
}
bool CharacterController::mousePressed(const OgreBites::MouseButtonEvent &evt)
{
	std::cout << "Mouse press\n";
	return false;
}
void CharacterController::frameRendered(const Ogre::FrameEvent &evt)
{
	Ogre::Vector3 goalDirection = Ogre::Vector3::ZERO;
	updateCamera(evt.timeSinceLastFrame);
	if (mKeyDirection != Ogre::Vector3::ZERO) {
		// calculate actually goal direction in world based on player's key directions
		goalDirection +=
			mKeyDirection.z * mCameraNode->getOrientation().zAxis();
		goalDirection +=
			mKeyDirection.x * mCameraNode->getOrientation().xAxis();
		goalDirection.y = 0;
		goalDirection.normalise();
		mCharacter->setGoalDirection(goalDirection);
	}
}
bool CharacterController::frameStarted(const Ogre::FrameEvent &evt)
{
	return true;
}
void CharacterController::updateCameraGoal(Ogre::Real deltaYaw,
					   Ogre::Real deltaPitch,
					   Ogre::Real deltaZoom)
{
	mCameraPivot->yaw(Ogre::Degree(deltaYaw), Ogre::Node::TS_PARENT);
	if (!(mPivotPitch + deltaPitch > 25 && deltaPitch > 0) &&
	    !(mPivotPitch + deltaPitch < -60 && deltaPitch < 0)) {
		mCameraPivot->pitch(Ogre::Degree(deltaPitch),
				    Ogre::Node::TS_LOCAL);
		mPivotPitch += deltaPitch;
	}
	Ogre::Real dist = mCameraGoal->_getDerivedPosition().distance(
		mCameraPivot->_getDerivedPosition());
	Ogre::Real distChange = deltaZoom * dist;

	// bound the zoom
	if (!(dist + distChange < 8 && distChange < 0) &&
	    !(dist + distChange > 25 && distChange > 0))
		mCameraGoal->translate(0, 0, distChange, Ogre::Node::TS_LOCAL);
}
void CharacterController::updateCamera(Ogre::Real delta)
{
	//	static int count = 0;
	// place the camera pivot roughly at the character's shoulder
	Ogre::Vector3 pivotOffset =
		mCharacter->getPosition() - mCameraPivot->_getDerivedPosition();
	Ogre::Vector3 pivotPos = mCameraPivot->_getDerivedPosition();
	mCameraPivot->setPosition(pivotPos + pivotOffset * 0.1f * delta +
				  Ogre::Vector3::UNIT_Y * CAM_HEIGHT);
	// move the camera smoothly to the goal
	Ogre::Vector3 goalOffset =
		mCameraGoal->_getDerivedPosition() - mCameraNode->getPosition();
	mCameraNode->translate(goalOffset * delta * 9.0f);
	// always look at the pivot
	mCameraNode->lookAt(mCameraPivot->_getDerivedPosition(),
			    Ogre::Node::TS_PARENT);
}
#endif
#define CAM_HEIGHT 1.6f // height of camera above character's center of mass
#define RUN_SPEED 17 // character running speed in units per second
#define TURN_SPEED 500.0f // character turning in degrees per second
#define ANIM_FADE_SPEED \
	7.5f // animation crossfade speed in % of full weight per second
CharacterController::CharacterController(Ogre::SceneNode *camNode,
					 Ogre::Camera *cam,
					 Ogre::SceneManager *scnMgr,
					 Ogre::Bullet::DynamicsWorld *world)
	: mCameraNode(camNode)
	, mCamera(cam)
	, mScnMgr(scnMgr)
	, mPivotPitch(0)
	, mVerticalVelocity(0)
	, mAnimID(ANIM_NONE)
	, mRunning(false)
	, mWorld(world)
	, mCollisionShape(nullptr)
	, mGhostObject(nullptr)
	, gvelocity(0.0f, 0.0f, 0.0f)
	, mUpdate(false)
{
	setupBody();
	setupCamera();
	setupAnimations();
	Ogre::Root::getSingleton().addFrameListener(this);
}
CharacterController::~CharacterController()
{
}
void CharacterController::setupBody()
{
	mBodyEnt = mScnMgr->createEntity("normal-male.glb");
	mBodyNode = mScnMgr->getRootSceneNode()->createChildSceneNode();
	mBodyNode->attachObject(mBodyEnt);
	mSkeleton = mBodyEnt->getSkeleton();
	// mRigidBody = world->addCharacter(mBodyEnt, 0);
	// mCollisionShape = static_cast<btCompoundShape *>(mRigidBody->getCollisionShape());
	mGhostObject = new btPairCachingGhostObject();
	mCollisionShape = new btCompoundShape;
	mGhostObject->setCollisionShape(mCollisionShape);

	{
		btVector3 inertia(0, 0, 0);
		//        mCollisionShape = new btCompoundShape();
		btScalar height = 1.0f;
		btScalar radius = 0.3f;
		btCapsuleShape *shape =
			new btCapsuleShape(radius, 2 * height - 2 * radius);
		btTransform transform;
		transform.setIdentity();
		transform.setOrigin(btVector3(0, 1, 0));
		static_cast<btCompoundShape *>(mCollisionShape)
			->addChildShape(transform, shape);
		btScalar masses[1] = { 0 };
		btTransform principal;
		static_cast<btCompoundShape *>(mCollisionShape)
			->calculatePrincipalAxisTransform(masses, principal,
							  inertia);
	}
	mGhostObject->setCollisionFlags(
		btCollisionObject::CF_KINEMATIC_OBJECT |
		btCollisionObject::CF_NO_CONTACT_RESPONSE);
	mGhostObject->setActivationState(DISABLE_DEACTIVATION);
	mWorld->attachCollisionObject(mGhostObject, mBodyEnt, 1, 0x7FFFFFF);
	mController = new Ogre::Bullet::KinematicMotionSimple(mGhostObject,
							      mBodyNode);
	OgreAssert(mGhostObject, "Need GhostObject");
	OgreAssert(mController, "Need controller");
	mWorld->getBtWorld()->addAction(mController);

	OgreAssert(mCollisionShape, "No collision shape");
#if 0
    if (mRigidBody->getMass() == 0) {
#if 0
        mRigidBody->setCollisionFlags(mRigidBody->getCollisionFlags()
		    | btCollisionObject::CF_KINEMATIC_OBJECT
		    | btCollisionObject::CF_NO_CONTACT_RESPONSE
		    );
#endif
#if 0
	mGhostObject->setWorldTransform(mRigidBody->getWorldTransform());
	WorldData::get_singleton()->getBtWorld()
		->getBroadphase()->getOverlappingPairCache()
			->setInternalGhostPairCallback(new btGhostPairCallback());
#endif
    }
#endif
#if 0
    mRigidBody->setActivationState(DISABLE_DEACTIVATION);
#endif
#if 0
    {
        Ogre::Entity *e2 = mScnMgr->createEntity("normal-male.glb");
	Ogre::SceneNode *e2node = mScnMgr->getRootSceneNode()->createChildSceneNode();
    	e2node->attachObject(e2);
	mGhostObject = WorldData::get_singleton()->addGhostObject(e2, mCollisionShape);
	mController = new btKinematicCharacterController(mGhostObject, mCollisionShape, 0.5f);
	WorldData::get_singleton()->getBtWorld()->addAction(mController);
    }
#endif
	OgreAssert(mSkeleton->hasBone("Root"), "No root bone");
	mRootBone = mSkeleton->getBone("Root");
	OgreAssert(mRootBone, "No root bone");
}
void CharacterController::setupCamera()
{
	// create a pivot at roughly the character's shoulder
	mCameraPivot = mScnMgr->getRootSceneNode()->createChildSceneNode();
	mCameraGoal =
		mCameraPivot->createChildSceneNode(Ogre::Vector3(0, 2, 3));
	mCameraNode->setPosition(mCameraPivot->getPosition() +
				 mCameraGoal->getPosition());
	mCameraPivot->setFixedYawAxis(true);
	mCameraGoal->setFixedYawAxis(true);
	mCameraNode->setFixedYawAxis(true);
	// our model is quite small, so reduce the clipping planes
	mCamera->setNearClipDistance(0.1f);
	mCamera->setFarClipDistance(700);

	mPivotPitch = 0;
	mKeyDirection = Ogre::Vector3::ZERO;
	mVerticalVelocity = 0;
}
void CharacterController::setupAnimations()
{
	int i, j;
	mSkeleton->setBlendMode(Ogre::ANIMBLEND_CUMULATIVE);
	Ogre::String animNames[NUM_ANIMS] = { "idle", "walking", "running" };
	for (i = 0; i < NUM_ANIMS; i++) {
		mAnims[i] = mBodyEnt->getAnimationState(animNames[i]);
		mAnims[i]->setLoop(true);
		mAnims[i]->setEnabled(true);
		mAnims[i]->setWeight(0);
		mFadingIn[i] = false;
		mFadingOut[i] = false;
		mSkelAnimations[i] = mSkeleton->getAnimation(animNames[i]);
		for (const auto &it : mSkelAnimations[i]->_getNodeTrackList()) {
			Ogre::NodeAnimationTrack *track = it.second;
			Ogre::String trackName =
				track->getAssociatedNode()->getName();
			if (trackName == "mixamorig:Hips") {
				mHipsTracks[i] = track;
			} else if (trackName == "Root") {
				mRootTracks[i] = track;
				//				mRootTracks[i]->removeAllKeyFrames();
			}
		}
		Ogre::Vector3 delta = Ogre::Vector3::ZERO;
		Ogre::Vector3 motion = Ogre::Vector3::ZERO;
		for (j = 0; j < mRootTracks[i]->getNumKeyFrames(); j++) {
			Ogre::Vector3 trans = mRootTracks[i]
						      ->getNodeKeyFrame(j)
						      ->getTranslate();
			if (j == 0)
				delta = trans;
			else
				delta = trans - motion;
			mRootTracks[i]->getNodeKeyFrame(j)->setTranslate(delta);
			motion = trans;
		}
	}
#if 0
	for(i = 0; i < NUM_ANIMS - 1; i++) {
		// need to cache
		int j;
		Ogre::String animName = mAnims[i]->getAnimationName();
		Ogre::Animation *anim = mSkeleton->getAnimation(animName);
		Ogre::NodeAnimationTrack *hips_track = nullptr, *root_track = nullptr;
		Ogre::Node *root_node = nullptr;
		for (const auto& it : anim->_getNodeTrackList()) {
			Ogre::NodeAnimationTrack* track = it.second;
			Ogre::String trackName = track->getAssociatedNode()->getName();
			std::cout << animName << " track: " << trackName << "\n";
			if (trackName == "mixamorig:Hips")
				hips_track = track;
			else if (trackName == "Root") {
				root_track = track;
				root_node = track->getAssociatedNode();
			}
		}
		assert(false);
		root_track->removeAllKeyFrames();
		std::cout << hips_track << " " << root_track << "\n";
		std::cout << hips_track->getNumKeyFrames() << " " << root_track->getNumKeyFrames() << "\n";
		assert(hips_track && root_track);
		Ogre::Vector3 delta = Ogre::Vector3::ZERO;
		for(j = 0; j < hips_track->getNumKeyFrames(); j++) {
			float timePos = hips_track->getNodeKeyFrame(j)->getTime();
			Ogre::Vector3 trans = hips_track->getNodeKeyFrame(j)->getTranslate();
			Ogre::Vector3 hips_trans(0, 0, 0);
			Ogre::Vector3 root_trans(0, 0, 0);
			hips_track->getNodeKeyFrame(j)->setTranslate(hips_trans);
			Ogre::TransformKeyFrame *nk = root_track->createNodeKeyFrame(timePos);
			nk->setTranslate(root_trans - delta);
			nk->setScale(Ogre::Vector3(1, 1, 1));
			nk->setRotation(Ogre::Quaternion());
			std::cout << animName << " delta: " << j << " " << timePos << " " << root_trans - delta << "\n";
			delta = root_trans;
		}
		for(j = 0; j < root_track->getNumKeyFrames(); j++) {
			float timePos = hips_track->getNodeKeyFrame(j)->getTime();
			Ogre::Vector3 root_trans = hips_track->getNodeKeyFrame(j)->getTranslate();
			std::cout << animName << " delta: root: " << j << " " << timePos << " " << root_trans << "\n";
		}
	}
//	assert(false);
#endif
	setAnimation(ANIM_IDLE);
}
bool CharacterController::keyPressed(const OgreBites::KeyboardEvent &evt)
{
	ECS::Input &input = ECS::get().get_mut<ECS::Input>();
	OgreBites::Keycode key = evt.keysym.sym;
	if (key == 'q' && (mAnimID == ANIM_IDLE)) {
		/* ... */
		mTimer = 0;
	} else if (key == 'e') {
	} else if (key == 'w')
		mKeyDirection.z = -1;
	else if (key == 'a')
		mKeyDirection.x = -1;
	else if (key == 's')
		mKeyDirection.z = 1;
	else if (key == 'd')
		mKeyDirection.x = 1;
	if (key == OgreBites::SDLK_LSHIFT)
		mRunning = true;
	if (!mKeyDirection.isZeroLength() && mAnimID == ANIM_IDLE) {
		if (mRunning)
			setAnimation(ANIM_RUN, true);
		else
			setAnimation(ANIM_WALK, true);
		// std::cout << "Walking\n";
	} else if (!mKeyDirection.isZeroLength() && mAnimID == ANIM_WALK &&
		   mRunning)
		setAnimation(ANIM_RUN);
	return true;
}
bool CharacterController::keyReleased(const OgreBites::KeyboardEvent &evt)
{
	OgreBites::Keycode key = evt.keysym.sym;
	if (key == 'w' && mKeyDirection.z == -1)
		mKeyDirection.z = 0;
	else if (key == 'a' && mKeyDirection.x == -1)
		mKeyDirection.x = 0;
	else if (key == 's' && mKeyDirection.z == 1)
		mKeyDirection.z = 0;
	else if (key == 'd' && mKeyDirection.x == 1)
		mKeyDirection.x = 0;
	if (key == OgreBites::SDLK_LSHIFT)
		mRunning = false;

	if (mKeyDirection.isZeroLength() &&
	    (mAnimID == ANIM_WALK || mAnimID == ANIM_RUN))
		setAnimation(ANIM_IDLE);
	else if (!mKeyDirection.isZeroLength() && mAnimID == ANIM_RUN &&
		 !mRunning)
		setAnimation(ANIM_WALK);

	return true;
}
bool CharacterController::mouseMoved(const OgreBites::MouseMotionEvent &evt)
{
	// update camera goal based on mouse movement
	updateCameraGoal(-0.18f * evt.xrel, -0.12f * evt.yrel, 0);
	return true;
}
bool CharacterController::mouseWheelRolled(const OgreBites::MouseWheelEvent &evt)
{
	// update camera goal based on mouse movement
	updateCameraGoal(0, 0, -0.15f * evt.y);
	return true;
}
bool CharacterController::mousePressed(const OgreBites::MouseButtonEvent &evt)
{
	std::cout << "Mouse press\n";
	return false;
}
void CharacterController::frameRendered(const Ogre::FrameEvent &evt)
{
	if (mUpdate) {
		updateBody(evt.timeSinceLastFrame);
		updateAnimations(evt.timeSinceLastFrame);
		updateCamera(evt.timeSinceLastFrame);
		if (evt.timeSinceLastFrame > 0)
			updateRootMotion(evt.timeSinceLastFrame);
	}
}
bool CharacterController::frameStarted(const Ogre::FrameEvent &evt)
{
	return true;
}
void CharacterController::updateCameraGoal(Ogre::Real deltaYaw,
					   Ogre::Real deltaPitch,
					   Ogre::Real deltaZoom)
{
	mCameraPivot->yaw(Ogre::Degree(deltaYaw), Ogre::Node::TS_PARENT);
	if (!(mPivotPitch + deltaPitch > 25 && deltaPitch > 0) &&
	    !(mPivotPitch + deltaPitch < -60 && deltaPitch < 0)) {
		mCameraPivot->pitch(Ogre::Degree(deltaPitch),
				    Ogre::Node::TS_LOCAL);
		mPivotPitch += deltaPitch;
	}
	Ogre::Real dist = mCameraGoal->_getDerivedPosition().distance(
		mCameraPivot->_getDerivedPosition());
	Ogre::Real distChange = deltaZoom * dist;

	// bound the zoom
	if (!(dist + distChange < 8 && distChange < 0) &&
	    !(dist + distChange > 25 && distChange > 0))
		mCameraGoal->translate(0, 0, distChange, Ogre::Node::TS_LOCAL);
}
void CharacterController::updateBody(Ogre::Real delta)
{
	mGoalDirection = Ogre::Vector3::ZERO;
	if (mKeyDirection != Ogre::Vector3::ZERO) {
		// calculate actually goal direction in world based on player's key directions
		mGoalDirection +=
			mKeyDirection.z * mCameraNode->getOrientation().zAxis();
		mGoalDirection +=
			mKeyDirection.x * mCameraNode->getOrientation().xAxis();
		mGoalDirection.y = 0;
		mGoalDirection.normalise();

		Ogre::Quaternion toGoal =
			mBodyNode->getOrientation().zAxis().getRotationTo(
				mGoalDirection);
		// calculate how much the character has to turn to face goal direction
		Ogre::Real yawToGoal = toGoal.getYaw().valueDegrees();
		// this is how much the character CAN turn this frame
		Ogre::Real yawAtSpeed = yawToGoal / Ogre::Math::Abs(yawToGoal) *
					delta * TURN_SPEED;
		// reduce "turnability" if we're in midair
		// if (mBaseAnimID == ANIM_JUMP_LOOP) yawAtSpeed *= 0.2f;
		if (yawToGoal < 0)
			yawToGoal = std::min<Ogre::Real>(
				0,
				std::max<Ogre::Real>(
					yawToGoal,
					yawAtSpeed)); //yawToGoal = Math::Clamp<Real>(yawToGoal, yawAtSpeed, 0);
		else if (yawToGoal > 0)
			yawToGoal = std::max<Ogre::Real>(
				0,
				std::min<Ogre::Real>(
					yawToGoal,
					yawAtSpeed)); //yawToGoal = Math::Clamp<Real>(yawToGoal, 0, yawAtSpeed);
		mBodyNode->yaw(Ogre::Degree(yawToGoal));
		// move in current body direction (not the goal direction)
//		mBodyNode->translate(0, 0, delta * RUN_SPEED * mAnims[mAnimID]->getWeight(),
//				Ogre::Node::TS_LOCAL);
#if 0
        if (mBaseAnimID == ANIM_JUMP_LOOP)
        {
            // if we're jumping, add a vertical offset too, and apply gravity
            mBodyNode->translate(0, mVerticalVelocity * deltaTime, 0, Node::TS_LOCAL);
            mVerticalVelocity -= GRAVITY * deltaTime;
            
            Vector3 pos = mBodyNode->getPosition();
            if (pos.y <= CHAR_HEIGHT)
            {
                // if we've hit the ground, change to landing state
                pos.y = CHAR_HEIGHT;
                mBodyNode->setPosition(pos);
                setBaseAnimation(ANIM_JUMP_END, true);
                mTimer = 0;
            }
        }
#endif
	}
}
void CharacterController::updateAnimations(Ogre::Real delta)
{
	int i, j, k;
	Ogre::Real animSpeed = 1;
	mTimer += delta;
	if (mAnimID != ANIM_NONE) {
		if (mAnimID == ANIM_WALK)
			mAnims[mAnimID]->addTime(delta * 1.0f);
		else
			mAnims[mAnimID]->addTime(delta * animSpeed);
	}
	fadeAnimations(delta);
}
struct EntityCollisionListener {
	const Ogre::MovableObject *entity;
	Ogre::Bullet::CollisionListener *listener;
};
void CharacterController::updateRootMotion(Ogre::Real delta)
{
	int i, j, k;
	Ogre::Quaternion rot = mBodyNode->getOrientation();
	Ogre::Vector3 pos = mBodyNode->getPosition();
	Ogre::Vector3 boneMotion = mRootBone->getPosition();
	Ogre::Vector3 velocity = rot * boneMotion / delta;
	OgreAssert(delta > 0.0f, "Zero delta");
	int maxPen = 0;
	Ogre::Vector3 colNormal;
	bool is_on_floor = false;
	bool penetration = false;
	Ogre::Vector3 gravity(0, -9.8, 0);
	gvelocity += gravity * delta;
	velocity += gvelocity;
	Ogre::Vector3 rotMotion = velocity * delta;
	btVector3 currentPosition =
		mGhostObject->getWorldTransform().getOrigin();
	is_on_floor = mController->isOnFloor();
	penetration = mController->isPenetrating();
	if (is_on_floor)
		gvelocity = Ogre::Vector3(0.0f, 0.0f, 0.0f);

	btTransform from(convert(mBodyNode->getOrientation()),
			 convert(mBodyNode->getPosition()));
	mBodyNode->setPosition(mBodyNode->getPosition() + rotMotion);
#if 0
	std::cout << "rotMotion: " << rotMotion
		<< " isOnFloor: " << is_on_floor
		<< " pairs: " << mGhostObject->getOverlappingPairCache()->getNumOverlappingPairs()
		<< " manifolds: " << mController->getManifolds()
		<< " penetration: " << penetration << "\n";
	std::cout << " position: " << mBodyNode->getPosition() << "\n";
#endif
#if 0
	std::cout
		<< " velocity: " << velocity
		<< " penetration: " << penetration
		<< " rotMotion: " << rotMotion
		<< "\n";
	std::cout << "old position: " << pos
		<< " new position: " << mBodyNode->getPosition()
		<< "\n";
#endif
}
void CharacterController::fadeAnimations(Ogre::Real delta)
{
	int i;
	for (i = 0; i < NUM_ANIMS; i++) {
		if (mFadingIn[i]) {
			// slowly fade this animation in until it has full weight
			Ogre::Real newWeight = mAnims[i]->getWeight() +
					       delta * ANIM_FADE_SPEED;
			mAnims[i]->setWeight(
				Ogre::Math::Clamp<Ogre::Real>(newWeight, 0, 1));
			if (newWeight >= 1)
				mFadingIn[i] = false;
		} else if (mFadingOut[i]) {
			// slowly fade this animation out until it has no weight, and then disable it
			Ogre::Real newWeight = mAnims[i]->getWeight() -
					       delta * ANIM_FADE_SPEED;
			mAnims[i]->setWeight(
				Ogre::Math::Clamp<Ogre::Real>(newWeight, 0, 1));
			if (newWeight <= 0) {
				mAnims[i]->setEnabled(false);
				mFadingOut[i] = false;
			}
		}
	}
}
void CharacterController::updateCamera(Ogre::Real delta)
{
	// place the camera pivot roughly at the character's shoulder
	mCameraPivot->setPosition(mBodyNode->getPosition() +
				  Ogre::Vector3::UNIT_Y * CAM_HEIGHT);
	// move the camera smoothly to the goal
	Ogre::Vector3 goalOffset =
		mCameraGoal->_getDerivedPosition() - mCameraNode->getPosition();
	mCameraNode->translate(goalOffset * delta * 9.0f);
	// always look at the pivot
	mCameraNode->lookAt(mCameraPivot->_getDerivedPosition(),
			    Ogre::Node::TS_PARENT);
}
void CharacterController::setAnimation(AnimID id, bool reset)
{
	assert(id >= 0 && id < NUM_ANIMS);
	if (mAnimID != ANIM_NONE) {
		mFadingIn[mAnimID] = false;
		mFadingOut[mAnimID] = true;
	}
	mAnimID = id;
	if (id != ANIM_NONE) {
		mAnims[id]->setEnabled(true);
		mAnims[id]->setWeight(0);
		mFadingOut[id] = false;
		mFadingIn[id] = true;
		if (reset)
			mAnims[id]->setTimePosition(0);
	}
}