class Bamboo{
  float xpos;
  float ypos;
  float speed;
  float thickness;
  float fillColor;
  int direction;
  float slope;
  float bambooColor;
  float joint;
  int counter;
  int branchCounter;

  Bamboo(){
    xpos = random(width);
    speed = 3.0f;
    thickness = random(30,60);
    ypos = height+thickness;
    fillColor = random(100);
    direction = 0;
    slope = 0.1;
    bambooColor = 10;
    joint = random(30,height-30);
    counter = 0;
    branchCounter = 0;
  }

  void update(){
    ypos -= speed;
    if (ypos<0) {
      ypos=height;
      xpos = random(width);
      thickness = random(30,70);
      slope = random(-0.5, 0.5);
      bambooColor = random(3,10);
      joint = random(30,height-30);
      counter = 0;
      branchCounter =0;
    }
    if (ypos < joint){
      counter = counter +1;
      if (counter < random(2)){
        bambooJoint();
        if(thickness>50){
          leaves();
        } 
        else{
          leaves2();
        }
      }
    }
  }

  void display(){
    fill(0, bambooColor);
    noStroke();
    float f1 = 0.0;
    beginShape(POLYGON);
    while(f1 < TWO_PI) {
      vertex(xpos + cos(f1)*(27-thickness) + random(0,5), ypos + sin(f1)*(27-thickness) + random(0,5));
      f1 += PI/12.0;
    }
    endShape();
    xpos += slope;
    thickness -= 0.05;
    branchCounter = branchCounter + 1;
  }

  void bambooJoint(){
    float f1 = 0.0;
    float jointThickness = thickness - (0.05*branchCounter);
    fill(255,255,255,bambooColor+10);
    beginShape(POLYGON);
    while(f1 < TWO_PI) {
      vertex(xpos + cos(f1)*(27-jointThickness) + random(0,5), ypos + sin(f1)*(27-jointThickness) + random(0,5));
      f1 += PI/12.0;
    }
    endShape();
  }

  void leaves(){
    float leaveSize = random(1,3);
    fill(87,120,54,thickness-10);
    noStroke();
    for (int i = 0; i < random(3); i++) {
      pushMatrix();
      translate(xpos,ypos);
      rotate(random(PI/4));
      ellipseMode(CORNER);
      ellipse(0+thickness*0.75,0,thickness,10);
      rotate(random(PI/2)+PI/2);
      ellipseMode(CORNER);
      ellipse(0+thickness*0.5,0,thickness,10);
      popMatrix();
    }
  }

  void leaves2(){
    float leaveSize = random(1,3);
    fill(87,120,54,thickness-10);
    noStroke();
    for (int i = 0; i < random(3); i++) {
      pushMatrix();
      translate(xpos+thickness*0.25,ypos);
      rotate(random(PI/4));
      ellipseMode(CORNER);
      ellipse(0,0,thickness,10);
      rotate(random(PI/2)+PI/2);
      ellipseMode(CORNER);
      ellipse(0+thickness/2,0,thickness,5);
      popMatrix();
    }
  }
}