Gretchen Kupferschmid-Project 11- Landscape

sketch

   //initialize variables
    var terrainSpeed = 0.0005;
    var terrainDetail = 0.005;
    var groundDetail= 0.005;
    var groundSpeed = 0.0005;
    var cactus = [];
    var col1, col2;

function setup() {
    createCanvas(480,480);
    frameRate(10);
    //start landscape out with 3 cacti
    for(i = 0; i < 3; i++){
      var rx = random(0,width);
      cactus[i] = makeCactus(rx);
}
}
 function draw (){
    //create gradient colors
    c1= color(255, 149, 0);
    c2= color(235, 75, 147);
    setGradient(c1, c2);
    
    //call functions 
    drawDesertMtn();
    updateCactus();
    removeCactus();
    addCactus();
}

function setGradient(c1, c2){
    //create the gradient background
  noFill();
  
  for(i = 0; i < height; i++){
    var grad = map(i, 0, height, 0, 1);
    var col = lerpColor(c1, c2, grad);
    stroke(col);
    line(0, i, width, i);
  }
}

function drawDesertMtn(){
    //back mtn 
    fill(255, 155, 84);
    noStroke();
    beginShape(); 
    //make the terrain randomize and go off screen
    for (var x = 0; x < width; x++) {
        var t = (x * terrainDetail) + (millis() * terrainSpeed);
        var y = map(noise(t), 0,2, 50, height);
        vertex(x, y); 
    }
    vertex(width,height);
    vertex(0,height);
    endShape();
    
    //middle mtn
    fill(245, 105, 98);
    noStroke();
    beginShape(); 
    //make the terrain randomize and go off screen
    for (var x = 0; x < width; x++) {
        var t = (x * terrainDetail) + (millis() * terrainSpeed);
        var y = map(noise(t), 0,1, 100, height);
        vertex(x, y); 
    }
    vertex(width,height);
    vertex(0,height);
    endShape();
    
    //closest mtn
    fill(224, 54, 139);
    noStroke();
    beginShape(); 
    //make the terrain randomize and go off screen
    for (var x = 0; x < width; x++) {
        var t = (x * terrainDetail) + (millis() * terrainSpeed);
        var y = map(noise(t), 0,1,200,height);
        vertex(x, y); 
    }
    vertex(width,height);
    vertex(0,height);
    endShape();
    
    //groud
    fill(165, 196, 106);
    noStroke();
    beginShape();
    //make the ground randomize and go off screen
     for (var x = 0; x < width; x++) {
        var t = (x * groundDetail) + (millis() * groundSpeed);
        var y = map(noise(t), 0, 1,400,480);
        vertex(x, y); 
    }
    vertex(width, height);
    vertex(0,height);
    endShape();
}


//change x value of cactus as cactus moves
function moveCactus(){
    this.x += this.speed;
}

function makeCactus(cactusX){
    //create the cactus as an object w some random parts
    var cactus={
        x:cactusX,
        speed: -6,
        breadth:311,
        color: random(0,100),
        length: random(50,100),
        move: moveCactus,
        display: displayCactus,
    }
    return cactus;
}

function updateCactus(){
    //loop through an array of cactus to update as adding and moving
  for(i = 0; i < cactus.length; i++){
    cactus[i].move();
    cactus[i].display();
  }
}

function displayCactus(){
    //create the cactus visuals with object parts
    noStroke();
    fill(this.color, 107, 9);
    //translate to x value of new cactus
    push();
    translate(this.x+157, height-40);
    ellipse(0,0,94,137);
    fill(this.color, 107,9);
    ellipse(61, -52, this.length,48);
    fill(this.color, 115, 28);
    ellipse(47,-83,19,27);
    fill(90, 115, 22);
    ellipse(81, -74, 24,24);
    fill(90, 115, 22);
    ellipse(-34, -86, this.length, 74);
    fill(this.color, 115, 22);
    ellipse(-18, -131, 41,41);
    fill(252, 197, 247);
    //create flower on cactus
    beginShape();
    curveVertex(-1, -150);
    curveVertex(-7,-152);
    curveVertex(-7, -147);
    curveVertex(-10, -157);
    curveVertex(-5, -141);
    curveVertex(-4, -135);
    curveVertex(1, -140);
    curveVertex(8, -135);
    curveVertex(8, -142);
    curveVertex(8, -147);
    curveVertex(3, -148);
    curveVertex(3, -153);
    curveVertex(-1, -150);
    endShape();
    pop();
}

function addCactus(){
//add a new cactus to the array
  var newCactus = 0.01;
  if(random(0,1)< newCactus){
    cactus.push(makeCactus(width));
  }
    
}
function removeCactus(){
    //remove cactus from array as it goes off the screen
  var keepCactus = [];
  for(i = 0; i < cactus.length; i++){
    if(cactus[i].x + cactus[i].breadth > 0){
      keepCactus.push(cactus[i]);
    }
  }
  cactus = keepCactus;
}

I was inspired by desert landscapes in which the sun is setting and there are cacti as well as communicate the vastness of a place like joshua tree.ca.