What literature you will get on drawing moving objects? It is simple ain't it? You need to have a object first i.e. you need to have a the coordinate points (x,y) of the object. You need to have the tract i.e. in which direction you want to move the object..again this would be the set of points (x,y). Add each point of the tract (xi,yi) to all the points of object, you will get your oblject move.
May be something like this:
car = [0 0; 1 0; 1 1; 0 1] ;
% track
th = linspace(0,2*pi) ;
y = 3*sin(th) ;
% move the object
for i = 1:length(th)
P = car+[th(i) y(i)] ;
patch(P(:,1),P(:,2),'r')
drawnow
end
