//the Situation in 2020
//by Jia Tao
//2009.11


// A Rotater class
class Rotater {

  float x,y,z;   // x,y,z location
  float theta; // angle of rotation
  float speed; // speed of rotation
  float w;     // size of box

  Rotater(float tempX, float tempY, float tempZ, float tempSpeed, float tempW) {
    x = tempX;
    y = tempY;
    z = tempZ;
    // Angle is always initialized to 0
    theta = 0; 
    speed = tempSpeed;
    w = tempW;
  }

  // Increment angle
  void spin() {
    theta += speed;
  }

  // Display boxes
  void display() {

    stroke(0);
    fill(0,100);
    // pushMatrix() and popMatrix() are called inside the class' display() method. 
    // This way, every Rotater object is rendered with its own independent translation and rotation!
    pushMatrix(); 
    translate(x,y,z);
    rotateX(theta);
    rotateY(theta);
    box(w);
    popMatrix();
  }

 

  // Display text
  void displayText() {

    String solar = "Solar";
    // an array of strings shown besides each box.
    String[] words = { 
      "Cars", "Pool Heating", "Hot Water Heating", "Electricity","Energy House","Lighting"         };
    int index = int(random(words.length));  // same as int(random(4))

    // pushMatrix() and popMatrix() are called inside the class' display() method. 
    
    pushMatrix(); 
    translate(x+20,y,z);
    //red text
    fill(255, 0, 0);
    text(solar, 0,0,0);
    //black texts;
    fill(0);
    text(words[index], 43,0,0);
    popMatrix();
  }
}