Not sure why my array is not allowed to use a function (OOP)

Processing Beginners
22

just to demonstrate the idea of objects in an array here is an example (without timer) (OOP)

  • Please note that the class knows only ONE triangle. It is oblivious of the entire array. In fact you could just declare a single triangle before setup() without having to change the class. Good.

Triangle[] tri = new Triangle[18];

void setup() {
  size(900, 900);
  background(220);

  for (int i = 0; i < tri.length; i++) {
    float y = i*10;
    float x = 60*i;
    tri[i] = new Triangle(x, y);
  }
}//func

void draw() {
  background(220);

  for (int i = 0; i < tri.length; i++) {
    tri[i].change();
    tri[i].display();
  }
}//func

// ========================================================

class Triangle {

  // representing ONE Triangle

  int   savedTime = 11;
  float totalTime = random(0, 1100);

  float black = random(255);

  float x;
  float y;

  //constr 
  Triangle(float tempX, float tempY) {
    x = tempX;
    y = tempY;
  }//constr 

  void display() {
    fill(black);
    triangle(x, y, 
      x+25, y+50, 
      x-25, y+50);
  }//method

  void change() {
    black += 1;
    if (black >= 255) {
      black = 0;
    }
  }//method
  //
}//class
//
1 Like