I want to make the red dots in this program images. I want to make them a bomb image as they fall, and a explosion when hit with the laser. I can't figure it out, so I have the base in here with the array as ellipse. TIA

 

Also, what would be a simple way to add a hit counter?

 

 PFont fontA;
  float bombDiameter = 8;
  boolean shoot = false;
  PImage galaxy;
  int hit = 0;
  int miss = 0;
  int randx()
  {
    return int(random(800));
  }
 
  int[] bombXCoords = { randx(), randx(), randx(), randx(), randx() }; // X cood. values for bomb array are random
  int[] bombYCoords = { 0, 0, 0, 0, 0 }; // All bombs have a 0 y value to start.
 
  void setup()
  {
    size(800,700);
    galaxy = loadImage("galaxy.jpg");
    
  }
 
  void draw()
  {
    background(galaxy);
    fill(color(0,255,0));
    stroke(color(0,255,0));
    ellipseMode(CENTER);
    ellipse(400, 700, 30, 30);
    fill(color(255,0,0));
    stroke(color(255,0,0));
 
    if(shoot==true)
    {
      Laser(mouseX);
      shoot = false;
    }
 
    Bombs();
    gameOver(); 
   

  }
 
  void mousePressed() // value for mousepressed
  {
    shoot = true;
  }
 
  void Bombs()
  { 
    stroke(255);
    fill(255,0,0);
    for (int i=0; i<5; i++)
    {
      ellipse(bombXCoords[i], bombYCoords[i]++,
              bombDiameter, bombDiameter);
    }
  }
 
  void Laser(int shotX) // creates laser
  {
    boolean strike = false;
    for (int i = 0; i < 5; i++)
    {
      if((shotX >= (bombXCoords[i]-bombDiameter/2)) && // paramiters to define a hit
         (shotX <= (bombXCoords[i]+bombDiameter/2)))
      {
        strike = true;
        line(400, 670, mouseX, bombYCoords[i]);
        ellipse(bombXCoords[i], bombYCoords[i],
                bombDiameter+25, bombDiameter+25);
        bombXCoords[i] = randx(); // Moves hit bomb to random x-coordinate
        bombYCoords[i] = 0; // Restet hit bomb to 0
      }   
      
    }
    if(strike = true)
         hit +=1;
         else miss +=1;
        
         text("Hit: " + hit, 700,650);
      
 
    if(strike == false)
    {
      line(400, 670, mouseX, 0);
    } 
   
 
  }
 
  void gameOver()
  {
    for (int i=0; i< 5; i++)
    {
      if(bombYCoords[i]==800)
      {
        fill(color(255,0,0));
        noLoop();
        textSize(100);
        text("GAME OVER", 100, 350);
      }
    }
  }