Method onTickPreRender

physx/samples/samplesubmarine/SampleSubmarine.cpp:727–808

}

void SampleSubmarine::onTickPreRender(float dtime)
{
	mScene->lockWrite();

	if(gResetScene)
		resetScene();

	// handle mine (and submarine) explosion
	if(mSubmarineActor)
	{
		// explode all touched mines, apply damage and force to submarine
		PxVec3 subMarinePos = mSubmarineActor->getGlobalPose().p;
		const size_t nbExplodeSeamines = mMinesToExplode.size();
		for(PxU32 i=0; i < nbExplodeSeamines; i++)
		{
			Seamine* mine = mMinesToExplode[i];
			PxVec3 explosionPos = mine->mMineHead->getGlobalPose().p;
			
			// disable contact trigger callback of the chain & enable gravity
			const size_t nbLinks = mine->mLinks.size();
			for(PxU32 j = 0; j < nbLinks; j++)
			{
				PxRigidDynamic* link = mine->mLinks[j];
				setupFiltering(link, 0, 0);
				link->setActorFlag(PxActorFlag::eDISABLE_GRAVITY, false);
			}
			
			// remove mine head
			std::vector<Seamine*>::iterator mineIter = std::find(mSeamines.begin(), mSeamines.end(), mine);
			if(mineIter != mSeamines.end())
				mSeamines.erase(mineIter);
			removeActor(mine->mMineHead);
			delete mine;

			// give damage to submarine
			static const PxReal strength = 400.0f;
			PxVec3 explosion = subMarinePos - explosionPos;
			PxReal len = explosion.normalize();
			PxReal damage = strength * (1.0f/len);
			explosion *= damage;
			mSubmarineActor->addForce(explosion*300);
			gSubmarineHealth = PxMax(gSubmarineHealth-PxI32(damage), 0);
			if(gSubmarineHealth == 0)
			{
				mSubmarineCameraController->init(subMarinePos - getCamera().getViewDir()*10.0f, getCamera().getRot());
				explode(mSubmarineActor, subMarinePos /*- explosion*0.2f*/, damage);
				mCameraAttachedToActor = NULL;
				mSubmarineCameraController->setFollowingMode(false);
				mSubmarineActor = NULL;
				break;
			}
		}
		mMinesToExplode.clear();
	}

	// respawn Crabs
	const size_t nbCrabs = mCrabs.size();
	for(PxU32 i = 0; i < nbCrabs; i++)