// chrono
if (!perdu) {
	global.secondes -= 1/room_speed;

	if (global.secondes <= 0) {
		global.minutes --;
		global.secondes = 20;
	}

	if (global.minutes <= 0) {
		perdu = true;
	}	
}

// transition

if (global.transition != -1) {
	switch(global.transition) {
		case 0 : 
			if (posY = 0) posY = 3;
			else posY --; break;
		case 1 :
			if (posX = 3) posX = 0;
			else posX ++; break;
		case 2 :
			if (posY = 3) posY = 0;
			else posY ++; break;
		case 3 :
			if (posX = 0) posX = 3;
			else posX --; break;
	}
	global.transition = -1;
	room_goto(asset_get_index("r" + string(tableau[posX, posY])));
}