stage1

// engineer: jWilliam Dunn

// 2023.0723 trying out new orbitControl in p5.js 1.7.0

// 2023.1028 update to p5.js 1.8.0

​

// shift middle-click to raise/drop the plane

// space-bar to run

​

p5.disableFriendlyErrors = true;

document.oncontextmenu=()=>false;

//var cam;

let smokeList = []; // The array of smoke particles

let smokeColor; // The color of the smoke

let smokeRate = 50; // The rate of smoke emission

let smokeCounter = 0; // The counter for smoke emission

​

function setup() {

  createCanvas(windowWidth,windowHeight, WEBGL);

  //cam = createEasyCam();

  //cam.setRotationConstraint(true,false,false);

  smokeColor = color(255);

}

​

let posA=0, posB=0, run=false;

​

function plant(){

  //upper portion

  noStroke();

  fill(0,70,100);

  translate(0,0,75);

  box(100,100,50);

  translate(0,0,-75);

  //side portion

  translate(0,25+12.5,25);

  box(100,25,50);

  translate(0,-25-12.5,-25);

​

  //side portion

  translate(0,-25-12.5,25);

  box(100,25,50);

  translate(0,+25+12.5,-25);

  //edge strokes

  noFill();

  stroke(0);

  strokeWeight(0.25);

  translate(0,0,25);

  box(100,50,50);

  translate(0,0,25);

  box(100);

  translate(0,0,-50);

  //smoke stack

  fill(50);

  translate(40,40,105);

  box(10);

  translate(-40,-40,-105);

}

​

function draw() {

  orbitControl();

  background(135,206,235);// sky

  rotateX(PI/2);

  rotateZ(-PI/3);

  translate(0,0,-120); // drop the floor of the sketch

  directionalLight(208,208,207, 0.25,0.4,-0.3);

  directionalLight(208,208,207, -0.25,0.4,0.3);

  ambientLight(16,16,15);

​

  //ground

  noStroke();

  fill(184*0.6,177*0.6,133*0.6);

  rotateX(PI/2);

  cylinder(1000,1);

  rotateX(-PI/2);

  //gizmo Z axis

  stroke("purple");

  strokeWeight(1);

  line(0,0,0, 0,0,50);

  // conveyor

  translate(0,0,1);

  noStroke();

  fill(170);

  box(500,50,1);

  translate(0,0,-1);

  //plant 1

  plant();

​

  if(run&&posA>0.6&&posB<1)posB+=0.005;

  // front door

  push();

    translate(-51,0,28+50*(1-MinJerk(posB)));

    fill(127);

    noStroke();

    strokeWeight(0.25);

    box(1.5,52,52);

  pop();

  // back door

  push();

    translate(51,0,28+50*(1-MinJerk(posB)));

    fill(127);

    noStroke();

    box(1.5,52,52);

  pop();

​

  if(run&&posA<1)posA+=0.005;

  if(posB<1) { // if door is open, render the input unit

    // input unit

    push();

      translate(-200*(1-MinJerk(posA)),0,25.5);

      fill(127,0,0);

      stroke(0);

      strokeWeight(0.25);

      box(47);

    pop();

  }

  // decoration

  push();

    translate(150,100,5);

    fill(203,177,40);

    noStroke();

    box(90,70,10);

  pop();

  push();

    translate(-60,-60,5);

    rotateZ(PI/2);

    fill(63,31,0);

    noStroke();

    cylinder(5,20, 10);

  pop();

  if(true||posB>=1) {

    // Emit smoke particles

    if (smokeCounter % smokeRate == 0) {

      let smoke = new Smoke({x:40,y:40,z:110}, smokeColor);

      smokeList.push(smoke);

    }

    smokeCounter++;

​

    // Update smoke particles

    for (let i=smokeList.length-1; i>=0; i--) {

      let smoke = smokeList[i];

      smoke.update();

      if (smoke.isDead()) smokeList.splice(i, 1);

    }

​

    // Draw the smoke particles

    let rsmoke = [...smokeList];

    rsmoke = rsmoke.reverse();

    for (let smoke of rsmoke)

      smoke.display();

  }

}

function keyPressed() {

  if(key==" ")run=true;

}

let MinJerk = t => (6*t*t-15*t+10)*t*t*t;

​

​

// Smoke class

class Smoke {

  constructor(pos, color) {

    this.pos = pos; // The position vector

    this.color = color; // The color of the smoke

    this.size = random(1.5,3); // The initial size of the smoke

    this.shape1 = round(random(5,6));

    this.shape2 = round(random(3,4));

    this.growth = 0.15; // The growth rate of the smoke

    this.lifespan = 255; // The lifespan of the smoke

    this.decay = 2; // The decay rate of the smoke

    this.rotX = 0;

  }

​

  // Update the smoke properties

  update() {

    // Increase the size

    this.size += this.growth;

​

    // Decrease the lifespan

    this.lifespan -= this.decay;

​

    // Move up slightly

    this.pos.z += random(0.5);

    this.pos.x += random(-0.15);

    this.pos.y += random(-0.05);

    this.rotX += random(0.03);

  }

​

  // Display the smoke

  display() {

    // Draw the smoke as a sphere with transparency

    push();

      translate(this.pos.x, this.pos.y, this.pos.z);

      rotateX(this.rotX);

      fill(this.color.levels[0],this.color.levels[1],this.color.levels[2], this.lifespan);

      noStroke();

      sphere(this.size,this.shape1,this.shape2);

    pop();

  }

​

  // Check if the smoke is dead

  isDead() {

    return this.lifespan <= 0;

  }

}