// You can find the Turtle API reference here: https://turtletoy.net/syntax
Canvas.setpenopacity(0.80);

// Global code will be evaluated once.
const scv=1; // min=-10, max=10, step=0.1
const smn=-2; // min=-10, max=10, step=0.1
const smx=4; // min=-10, max=10, step=0.1
const sdt=0.25; // min=-10, max=10, step=0.01
const tcv=-1; // min=-90, max=90, step=1
const tmn=-39; // min=-90, max=90, step=1
const tmx=3; // min=-90, max=90, step=1
const tdt=1; // min=-10, max=10, step=0.5
const turtle = new Turtle();
turtle.up();
turtle.goto(-50,10);
turtle.down();


function reflect(param){
    if(param.currval<param.min){
        param.delta=-param.delta;
        param.currval=param.min;
    }else if(param.currval>param.max){
        param.delta=-param.delta;
        param.currval=param.max;
    }
}

function update(param){
    param.currval+=param.delta;
    reflect(param);
}

// functions
function navgen(steplenparam,turnparam){
    for(var i=0;i<360;i++){
        update(steplenparam);
        console.log(steplenparam);
        turtle.forward(steplenparam.currval);
        update(turnparam);
        console.log(steplenparam);
        turtle.right(turnparam.currval);
    }
}

// The walk function will be called until it returns false.
function walk(i) {
    navgen({currval:scv,min:smn,max:smx,delta:sdt},{currval:tcv,min:tmn,max:tmx,delta:tdt});
    return i < 48;
}