var cam_pos = null;	//camera pivot position need for camera target
var cam_dir = null; //camera direction (y axis) need for rotate and target
var cam_rot_spd = 2; //rotating speed

function camera_setup(pivot){
	//this function is called every few milliseconds
	//'pivot' the name of the scene node used as the camera pivot
	this.camera_pivot = ccbGetSceneNodeFromName(pivot); 					//set camera pivot
	cam_pos = ccbGetSceneNodeProperty(this.camera_pivot,"PositionAbs"); 	//get pivot position
	cam_dir = ccbGetSceneNodeProperty(this.camera_pivot,"Rotation").y;		//get pivot direction
	//set camera target to 10 in pivot direction
	//cam_pos.x+Math.sin(cam_dir/57.29)*10 && cam_pos.z+Math.cos(cam_dir/57.29)*10
	ccbSetSceneNodeProperty(ccbGetCurrentNode(),"Target",cam_pos.x+Math.sin(cam_dir/57.29)*10,cam_pos.y,cam_pos.z+Math.cos(cam_dir/57.29)*10);
}
function camera_rotation(left, right){
	//call this function on key pressed, has two boolean 'left' and 'right'
	if(left)		cam_dir -= cam_rot_spd;
	else if(right)	cam_dir += cam_rot_spd;
	//set pivot rotation
	ccbSetSceneNodeProperty(this.camera_pivot,"Rotation",0,cam_dir,0);
}