int [] xpos = new int[50];//x pos for all the circles
int [] ypos = new int[50];//y pos for all the circles
int StarCount = 1000;//number of total stars on screen
float[] posX = new float[StarCount];//x pos for stars
int[] posY = new int[StarCount];//y pos for stars

void setup()
{
  size(1000, 1000);
  smooth();
  ellipseMode(CENTER);
  noCursor();

  //make the first circle
  for (int i = 0; i < xpos.length; i++)
  {
    xpos[i] = 0;
    ypos[i] = 0;
  }
}



void draw()
{
  background(0);
  //Marina helped me out a lot with the star code, similar to her rain drop code
  for (int i=0; i<=StarCount-1; i++) 
  { //# iterations of star
    if (posY[i]<1) 
    { //stars starts falling from top
      if (i>=1 && posY[i-1]>=150) 
      { //if previous star has significant distance from start
        posX[i] = random(0, 1001); //randomize star X
        for (int j=0; j<=12; j=j+3) 
        { //gradient star
          if (100+(j*13) >= 255) 
          {
            fill(255);
            rect(posX[i], posY[i]+j, 2, 7);
          } else 
          {
            fill(0, 70+(j*13), 100+(j*13));
            rect(posX[i], posY[i]+j, 2, 3);
          }
        }
        posY[i]++; //Y+1
      }
      else if (i>=1 && posY[i-1]<=150) 
      { //if previous star DOES NOT have sig. distance
      }
      else 
      {
        posY[i]++; //Y+1
      }
    } 
    else if (posY[i]<1000) 
    { //star has not yet reached bottom of screen
      for (int j=0; j<=12; j=j+3) 
      { //gradient star
        if (100+(j*13) >= 255) 
        {
          fill(255);
          rect(posX[i], posY[i]+j, 2, 7);
        }
        else 
        {
          fill(0, 70+(j*13), 100+(j*13));
          rect(posX[i], posY[i]+j, 2, 3);
        }
      }
      posY[i] = posY[i]+20; //add between Y (fall)
    }
    else 
    { //star has reached bottom of screen
      posY[i] = 0; //reset to top
    }
  }

  //shifting the array values
  for (int i = 0; i < xpos.length-1; i++)
  {
    xpos[i] = xpos[i+1];
    ypos[i] = ypos[i+1];
  }

  //new location
  xpos[xpos.length-1] = mouseX;
  ypos[ypos.length-1] = mouseY+50;

  //draw
  for (int i = 0; i < xpos.length; i++)
  {
    noStroke();
    fill(#E3E5E5 + i * 5);
    ellipse(xpos[i], ypos[i], i+50, i+50);
    //line(xpos[i],ypos[i],i,i);
  }

  drawRocketShip();
}

void drawRocketShip()
{
  fill(#9B9696);
  rect(mouseX-50, mouseY-250, 100, 250);//core
  fill(#CE4747);
  triangle(mouseX, mouseY-350, mouseX-50, mouseY-250, mouseX+50, mouseY-250);//tip
  triangle(mouseX-100, mouseY-100, mouseX-50, mouseY-100, mouseX-50, mouseY-200);//left wing
  triangle(mouseX+50, mouseY-100, mouseX+100, mouseY-100, mouseX+50, mouseY-200);//right wing
  fill(#56D3E0);
  ellipse(mouseX, mouseY-200, 50, 50);//windows
  ellipse(mouseX, mouseY-100, 50, 50);
  fill(#515555);
  quad(mouseX-50, mouseY, mouseX+50, mouseY, mouseX+100, mouseY+50, mouseX-100, mouseY+50);//thrusters
}

void keyPressed()//tried to implement keyboard controls
{
  if (key == CODED)
  {
    if (keyCode == UP)
    {
      //increse rocket+circle x pos
    } else if (keyCode == DOWN)
    {
      //decrease rocket+circle x pos
    }
  }
}