# akluk-Project-11-TurtleFreeStyle

For this project, I simply just used a lot of randomization while trying to emulate the game of snakes with different colors for trails they leave. Below is an image of my draft

sketch
``````//Alvin Luk
//Section A
//akluk@andrew.cmu.edu
//Assignment-10-A

//define line weight, starting positions of turtles, right angle,
//a unit of length for patterns, array of turtles, and max number of iterations
var line_weight = 10;
var r = 90;
var unit = 10;
var turtles = [];
var max_num = 34;
var cols = [];
function setup() {
//setup canvas and stroke properties
createCanvas(479, 479);
background(255);
stroke(0);
strokeJoin(MITER);
strokeCap(PROJECT);
cols = [color(60,186,84),color(244,194,13),color(219,50,54),color(72,133,237)];
//adds each turtle to its appropriate location, stroke weight
//color, and also initial orientation.
for (var i = 0; i < cols.length; i++){
turtles.push(makeTurtle(width/2,height/2));
turtles[i].setWeight(line_weight);
turtles[i].setColor(cols[i]);
for (var j = 0; j < i ; j++) {
turtles[i].left(r);
}
}
}

function draw() {
for (var i = 0; i < turtles.length; i++){
var k = random(10,30);
var dir = random([0,1]);
turtles[i].forward(k);
if (dir == 0){
turtles[i].left(r);
}
else {
turtles[i].right(r);
}
}
}

function mousePressed(){
turtles = [];
for (var i = 0; i < cols.length; i++){
turtles.push(makeTurtle(mouseX,mouseY));
turtles[i].setWeight(line_weight);
turtles[i].setColor(cols[i]);
for (var j = 0; j < i ; j++) {
turtles[i].left(r);
}
}
}

function turtleLeft(d) {
this.angle -= d;
}

function turtleRight(d) {
this.angle += d;
}

function turtleForward(p) {
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;
}``````