boolean mouseP;//マウスムーブを判定

float eSize = 1;
float eSize_2 = 1;
float eSpeed = 0.1;
float eSpeed_2 = 0.4;
float x, y;

void setup() {
  size(400, 400);
  noStroke();      //輪郭を描かない
  fill(0);      //オブジェクトは黒
}

void draw() {
  background(255);
  x += -5+mouseX/40;
  y += -5+mouseY/40;
  for (int w = 0; w <= width; w += 50) {
    for (int h = 0; h <= height; h += 10) {
      ellipse(w + x, h, eSize, eSize);
    }
  }
  for (int w = 0; w <= width; w += 10) {
    for (int h = 0; h <= height; h += 50) {
      ellipse(w, h + y, eSize_2, eSize_2);
    }
  }
  if (x >= 50) {
    x = 1;
  }
  if (x <= 0) {
    x = 49;
  }
  if (y >= 50) {
    y = 1;
  }
  if (y <= 0) {
    y = 49;
  }
  if (mouseP) {
    eSize += eSpeed;
    eSize_2 += eSpeed_2;
  }
  if (eSize <= 1 || eSize >=30) {
    eSpeed = -eSpeed;
  }
  if (eSize_2 <= 1 || eSize_2 >=30) {
    eSpeed_2 = -eSpeed_2;
  }
}

void mousePressed() {
  mouseP = true;
}
void mouseReleased() {
  mouseP = false;
}