dnam-project11

sketch

var circPositions = [33, 66, 132, 198, 264, 330]; //5 dots in the middle

function setup() {
  createCanvas(400, 400);
  background(0);
  frameRate(10); //reduce lag, choose frequency of updates
}

function draw() {
  fill(mouseX, mouseY, mouseY) //color interacts with mouse position
  for(var i = 1; i < 6; i++) { //create the dots
    ellipse(circPositions[i], 200, 10, 10);
  }
  for(var b = 1; b < 100; b++){ //create turtle lines / marks with loop
    var turtle = makeTurtle(circPositions[b], random(0, 400)); //set variable for turtle
     turtle.penDown();
     turtle.setColor(mouseX); //shade depending on the mouse position
     turtle.setWeight(0.1 * mouseY / 10); //changes weight depending on mouse position
     turtle.right(random(1, 360)); //mark changes depending on a random factor
     turtle.forward(3); //small mark
     
  if (mouseIsPressed === true) { //when mouse is pressed, make large web like lines
  makeTurtle(circPositions[b], 100);
  turtle.penUp();
  turtle.right(90);
  turtle.setWeight(1);
  turtle.penDown();
  turtle.forward(100);
}
     
  if (keyIsPressed === true){ //clear and reset canvas
       background(0);
}
}




// turtle graphics ----------------------------------------------
function turtleLeft(d){this.angle-=d;}function turtleRight(d){this.angle+=d;}
function turtleForward(p){var rad=radians(this.angle);var newx=this.x+cos(rad)*p;
var newy=this.y+sin(rad)*p;this.goto(newx,newy);}function turtleBack(p){
this.forward(-p);}function turtlePenDown(){this.penIsDown=true;}
function turtlePenUp(){this.penIsDown = false;}function turtleGoTo(x,y){
if(this.penIsDown){stroke(this.color);strokeWeight(this.weight);
line(this.x,this.y,x,y);}this.x = x;this.y = y;}function turtleDistTo(x,y){
return sqrt(sq(this.x-x)+sq(this.y-y));}function turtleAngleTo(x,y){
var absAngle=degrees(atan2(y-this.y,x-this.x));
var angle=((absAngle-this.angle)+360)%360.0;return angle;}
function turtleTurnToward(x,y,d){var angle = this.angleTo(x,y);if(angle< 180){
this.angle+=d;}else{this.angle-=d;}}function turtleSetColor(c){this.color=c;}
function turtleSetWeight(w){this.weight=w;}function turtleFace(angle){
this.angle = angle;}function makeTurtle(tx,ty){var turtle={x:tx,y:ty,
angle:0.0,penIsDown:true,color:color(128),weight:1,left:turtleLeft,
right:turtleRight,forward:turtleForward, back:turtleBack,penDown:turtlePenDown,
penUp:turtlePenUp,goto:turtleGoTo, angleto:turtleAngleTo,
turnToward:turtleTurnToward,distanceTo:turtleDistTo, angleTo:turtleAngleTo,
setColor:turtleSetColor, setWeight:turtleSetWeight,face:turtleFace};
return turtle;}}

I wanted to create something like a spider web using the turtle tool we were given. I allowed for two different types of art to be created. The results differ depending on the user and their mouse movements.