struggling to design a wing

Hi, i am trying to write a code where i will able to introduce inputs( chord, aspect ratio, taper ratio...) to get a 3d airplane wing , all i've managed to do is a 3d airfoil , does anyone help me improve my code to get the shape of a wing. this is my code :

clear
c=5;
t=0.2;
P=0.4;
M=0.02;
theta=pi/4;
y=linspace(0,c,100);
zt=(t*c/0.2)*(0.2969*sqrt(y/c)-0.1260*(y/c)-0.3516*(y/c).^2+0.2843*(y/c).^3-0.1036*(y/c).^4);%thickness 
x=y;
if 0<=y<P
zc=(M/P.^2)*(2*P*y-y.^2)
elseif P<=y<=1
    zc=(M/(1-P).^2)*(1-2*P+2*P*y-y.^2)
end
%upper surface

      yu=y-zt*sin(theta)
      zu=zc+zt*cos(theta)
  %lower surface
      yl=y+zt*sin(theta)
      zl=zc-zt*cos(theta)

[X,Z1]=meshgrid(x,zu);
surf(x,yu,Z1);
hold on;
[X,Z2]=meshgrid(x,zl);
[X,Z3]=meshgrid(x,zc);
surf(x,yl,Z2);
surf(x,y,Z3);
xlabel('x');ylabel('y');zlabel('z');

[Maya Ghazal]

Just have a quick question as I am designing and analysing wing stuctures for my final year project, how can I change the camber of your design as I am supposed to have a symmetrical aerofoil? :)