Project-04 stringArt

	// Huijun Shen  session D
    // huijuns@andrew.cmu.edu

var gray = 0;



 
function setup() {
    createCanvas(600,450);
    background(100);

    strokeWeight(0.5);
    
}
 
function draw() {
    
    background(100);

    
    gray = mouseX/ 2;
    
    fill(255-gray);
    noStroke();
    circle(width / 2, height / 2, 450);


    

    dist(mouseX , mouseY , width/2, height/2 ) 

    for(var i = 50; i <= 600; i += 50){
        if(dist (mouseX, mouseY, width/2, height/2 ) < 225  ){
        stroke(255);
        line(i, 0, constrain(mouseX, 75, 525), constrain(mouseY,0,450));
        line(constrain(mouseX, 75, 525), constrain(mouseY,0,450), i , height);
    }   else {
        stroke(0);
        line(i, 0, constrain(mouseX, 75, 525), constrain(mouseY,0,450));
        line(constrain(mouseX, 75, 525), constrain(mouseY,0,450), i , height);
    }

    }

    for( var e = 30; e <= 450 ; e += 10){
        line(0,e,mouseX,i);
        line(600,e,mouseX,i);
    }
    
}