MDATA11

	int feature = thesquare.Features;
	int wall = thesquare.Walls;

	if(feature >= 57856)
	{
		feature -= 57856;
		chute = true;
	}
	if(feature >= 50176)
	{
		feature -= 50176;
		stud = true;
	}
	if(feature == 48928)
	{
		feature -= 48928;
		rotator = true;
		fog = true;
	}
	if(feature >= 40000)
	{
		feature -= 40000;
		antimagic = true;
	}
	if(feature >= 28928)
	{
		feature -= 28928;
		fog = true;
	}
	
	if(feature == 24640)
	{
		feature -= 24640;
		stud = true;
		pit = true;
	}
	if(feature == 21248)
	{
		feature -= 21248;
		chute = true;
		fog = true;
	}
	
	if(feature >= 20000)
	{
		feature -= 20000;
		rotator = true;
	}
	if(feature == 14464)
	{
		feature -= 14464;
		rock = true;
	}
	if(feature == 13569)
	{
		feature -= 13569;
		fog = true;
		stud = true;
	}
	if(feature == 13568)
	{
		feature -= 13568;
		fog = true;
		stud = true;
	}
	if(feature >= 10000)
	{
		feature -= 10000;
		quicksand = true;
	}
	if(feature >= 5000)
	{
		feature -= 5000;
		water = true;
	}

	if(feature >= 2500)
	{
		feature -= 2500;
		teleporter = true;
	}
	if(feature >= 1250)
	{
		feature -= 1250;
		stairsdown = true;
	}


	if(feature >= 892)
	{
		feature -= 892;
		fog = true;
		antimagic = true;
		// unknown feature
		//wall should be 30000. wall is 21504. difference is
//				wall += 8496;
		
	}
	if(feature >= 625)
	{
		feature -= 625;
		stairsup = true;
	}
	if(feature >= 351)
	{
		feature -= 351;
		pit = true;
		facesouth = true;
		//wall should be 10000. wall is 46864. difference is:
		wall -= 32768;
		wall -= 4096;
	}
	if(feature >= 314)
	{
		feature -= 314;
		pit = true; //pit type 3?
		//2,15,6
		// wall should be 54464, wall is 21696. difference is
		wall += 32768;
	}
	if(feature >= 313)
	{
		feature -= 313;
		pit = true; //pit type 2?
		//2,3,10
		// wall shouod be 60000, wall is 27232 difference is:
//				wall += 32768;

		//3,18,6
		// wall should be 40000, wall is 7232. difference is:
		//wall += 32768;
		
		//16,5,6
		// wall should be 24464, wall is 57232, differenceis
		//wall -= 32768;
	}
	if(feature >= 311)
	{
		feature -= 311;
		pit = true;
		wall -= 32768;

	}

	if(feature >= 157)
	{
		feature -= 157;
		extinguish = true;
		//wall should be 60000. wall is 10848.difference is:
//				wall += 49152;

		//wall should be 14464. wall is 30848. difference is 
		wall -= 16384;

	}
	if(feature >= 156)
	{
		feature -= 156;
		extinguish = true; // second extinguish type?
		//wall should be 10000. wall is 26384.difference is:
		wall -= 16384;

	}
	if(feature >= 78)
	{
		feature -= 78;
		facewest = true;
		//wall should be 20000. wall is 28192. difference is:
		wall -= 8192;
	}


	if(feature >= 39)
	{
		feature -= 39;
		facesouth = true;
		//wall should be 10000. wall is 14096. diffence is
		wall -=4096;
	}
	if(feature >= 20)
	{
		feature -= 20;
		faceeast = true; //second type of faceeast?
		//wall should be 60000. wall is 29280. diffence is
		wall +=30720;
	}

	if(feature >= 19)
	{
		feature -= 19;
		faceeast = true;
		//wall should be 20000. wall is 54816. diffence is
		wall -=34816;
	}
	if(feature >= 11)
	{
		feature -= 11;
		// dont know what feature;
		//wall should be 54464. wall is 39104. diffence is
		wall +=15360;
	}

	if(feature >= 10)
	{
		feature -= 10;
		facenorth = true; // second face north type?
		//wall should be 40000 . wall is 24640. difference is:
		wall +=15360;

	}
	if(feature >= 9)
	{
		feature -= 9;
		facenorth = true;
		//wall should be 10000. wall is 60176. difference is:
		wall -=50176;

		//wall +=15360;
	}




	const int nothing = 0;
	const int justwall = 1;
	const int door = 2;
	const int secreatdoor = 3;
	const int lockeddoor = 4;
	switch(wall)
	{

	case 63392:
		northwall = lockeddoor;
		eastwall = justwall;
		break;
//	case 62768:
//		northwall = justwall;
//		eastwall = justwall;
		//&pit
//		break;
	case 60000:
		northwall = justwall;
		eastwall = door;
		break;
	case 57856:
		northwall = secreatdoor;
		eastwall = nothing;
		break;
//	case 57232:
//		northwall = door;
//		eastwall = nothing;
//		// &pit
//		break;
	case 54464:
		northwall = door;
		eastwall = door;
		break;
	case 52768:
//		northwall = wall;
//		eastwall = nothing;
//		// &pit
//		break;
	case 48928:
		northwall = justwall;
		eastwall = secreatdoor;
		break;
//	case 47232:
//		northwall = door;
//		eastwall = justwall;
//		// &pit2
//		break;
	case 43392:
		northwall = door;
		eastwall = secreatdoor;
		break;
	case 40000:
		northwall = nothing;
		eastwall = door;
		break;
//	case 32768:
//		northwall = nothing;
//		eastwall = nothing;
//		// &pit
//		break;
	case 32320:
		northwall = secreatdoor;
		eastwall = secreatdoor;
		break;
	case 30000:
		northwall = justwall;
		eastwall = justwall;
		break;
	case 28928:
		northwall = nothing;
		eastwall = secreatdoor;
		break;
	case 27232:
		northwall = nothing;
		eastwall = nothing;
		// cant see whats so special about this square.
		break;
	case 24464:
		northwall = door;
		eastwall = justwall;
		break;
	case 21248:
		northwall = secreatdoor;
		eastwall = secreatdoor;
		break;
	case 20000:
		northwall = justwall;
		eastwall = nothing;
		break;
	case 14464:
		northwall = door;
		eastwall = nothing;
		break;
	case 10000:
		northwall = nothing;
		eastwall = justwall;
		break;
//	case 7232:
//		northwall = nothing;
//		eastwall = door;
//		// & pit2
//		break;
	case 2320:
		northwall = secreatdoor;
		eastwall = justwall;
		break;
	case 0:
		northwall = nothing;
		eastwall = nothing;
		break;
	default:
		{
			// code that a breakpoint can be attached to, so as to find unknown walls.
			int test;
			test = 0;
			test++;
		}
	}