squares_ugh.java

int cell = 35; // Individual cell size
int cols, rows; // Total number of columns and rows
float valueR = 50.0;
float valueG = 50.0;
float valueB = 50.0;

int count = 0;
int squareCount = 0;
sqProp[] square = new sqProp[400];

void setup() {
  size(800, 600);
  reset();
  background(255);
  
  for (int col = 0; col < cols; col++) {
    int x = col*40;
    for (int row = 0; row < rows; row++) {
      int y = row*40; 
      square[squareCount] = new sqProp(x, y);
      squareCount++;
    }
  }
}

void draw() {
  
  int f = 0;
  while (f < squareCount) {
  square[f].show();
  f++;
  }
}

void reset() {
  cols = width/cell;
  rows = height/cell;  
}

void mouseMoved() {
  
  //for (int count = 0; count <= 373; count++) {
  for (int col = 0; col < cols; col++) {
    int x = col*40;
    for (int row = 0; row < rows; row++) {
      int y = col*40;
      if ((mouseX > x) && (mouseX < x + 40) && (mouseY > y) && (mouseY < y + 40)) {
        square[count].updateColor(30, 40, 50);
        count++;
        if (count > 373) {
          count = 0;
        }
        println(count, x, mouseX, y, mouseY);
      }
    }
  //}
  }
}

class sqProp {
  float sqRed = 50, sqGreen = 50, sqBlue = 50;
  int sqX, sqY;
  
  sqProp(int squX, int squY) {
    sqX = squX;
    sqY = squY;
  }
  
  void updateColor(float r2, float g2, float b2) {
    sqRed += r2;
    sqGreen += g2;
    sqBlue += b2;
  }
  
  void show() {
    strokeWeight(.5);
    stroke(255);
    fill(sqRed, sqGreen, sqBlue, 15);
    rectMode(CENTER);
    rect(sqX, sqY, 40, 40);
  }
  
  
}