week 12, array objects

example:

https://processing.org/examples/arrayobjects.html

Exercise:

1.
change 1-dimension array into 2-dimension

Module [] mods;    v.s. Module[][] mods;

2. change objects into 3D

3. Change update() to respond to mouseX, mouseY


Sample codes for 2D array of objects


---------------------------------------------------------

int unit = 40;
int count;
int wideCount;
int highCount;
Module[][] mods;

void setup() {
  size(640, 360, P3D);
  lights();
  //noStroke();
  wideCount = width / unit;
  highCount = height / unit;
  //count = wideCount * highCount;
  mods = new Module[highCount][wideCount];

//  int index = 0;
 
  for (int y = 0; y < highCount; y++) {
    for (int x = 0; x < wideCount; x++) {
      mods[y][x] = new Module(x*unit, y*unit, unit/2, unit/2, random(0.05, 0.8), unit);
    }
  }
}

void draw() {
  background(0);

  for (int y = 0; y < highCount; y++) {
    for (int x = 0; x < wideCount; x++) {
      mods[y][x].update();
      mods[y][x].display();
    }
  }

/*  for (Module mod : mods) {
    mod.update();
    mod.display();
  }
*/
}


class Module {
  int xOffset;
  int yOffset;
  float x, y;
  int unit;
  int xDirection = 1;
  int yDirection = 1;
  float speed;
 
  // Contructor
  Module(int xOffsetTemp, int yOffsetTemp, int xTemp, int yTemp, float speedTemp, int tempUnit) {
    xOffset = xOffsetTemp;
    yOffset = yOffsetTemp;
    x = xTemp;
    y = yTemp;
    speed = speedTemp;
    unit = tempUnit;
  }
 
  // Custom method for updating the variables
  void update() {
 
  }
 
  // Custom method for drawing the object
  void display() {
    fill(255);
    ellipse(xOffset + x, yOffset + y, 6, 6);
    pushMatrix();
    translate(xOffset, yOffset, -random(100));
    rotateY(1.25);
    rotateX(-0.4);
    box(30);
    popMatrix();
  }
}