//****************************//
//       The Submarine
//       By: Kehao Fan        //
//****************************//

int x= 300;
int y= 300;
float time;

int charX = 300;
int charY = 300;
int rockX;
int rockY;
float Horizontalspeed = 5;
float fastspeed = 4;
float slowspeed =2;
float risespeed =2;
float sinkspeed =2;
boolean moveUp, moveDown, moveLeft, moveRight, sink;
int brush;



void setup() {
  size (600, 600);
  frameRate(40);
  smooth();
  ellipseMode(CENTER);
  rectMode(CENTER);
  noCursor();
  sink = true; 
  time = millis();
}



void draw() {
  TheSea();
  TheConditonOfMovement();
  Submarine();
  Timer();
}



///////////////////////////////The Code packages///////////////////////////////



/////////////////The Background
void TheSea() {

  background(1);

  //The colour on the background that flashing randomly
  for (int a = 0; a < 600; a++) 
  {
    float r = random(50);
    noStroke();
    fill(125-a/2, (170-a/2)+(r/8), (245-a/2)+r);
    rect(width/2, a, width, 2);
  }

  rectMode(CORNER);
  fill(30, 80, 150, 120);
  rect(0, 80, 600, 520);
}


/////////////////The Timer

void Timer() {
  time = millis();
  textSize(32);
  fill(255);
  text((time)/1000, 20, 580);
}


/////////////////The Moving Object
void Submarine() {

  rectMode(CENTER);

  fill(210, 200, 150);
  rect(charX-2, charY-22, 5, 5);

  fill(190, 180, 120);
  rect(charX, charY-15, 5, 20);

  fill(230, 140, 150);
  ellipse(charX, charY, 70, 30);

  fill(100, 100, 100);
  ellipse(charX, charY, 67, 25);

  fill(150, 150, 150);
  ellipse(charX, charY, 55, 15);

  fill(230, 230, 90);
  ellipse(charX-20, charY, 15, 15);
  ellipse(charX-2, charY, 15, 15);
  ellipse(charX+16, charY, 15, 15);

  fill(0, 0, 0);
  ellipse(charX-20, charY, 10, 10);
  ellipse(charX-2, charY, 10, 10);
  ellipse(charX+16, charY, 10, 10);
}


/////////////////use the mouse to drow 
//The shape of the rock
void rock() {
  fill(0);
  ellipse(rockX, rockY, 50, 50);
}
void mouseDragged() 
{
  rockX = mouseX;
  rockY = mouseY;
  rock();
}


/////////////////The movement

void TheConditonOfMovement() {
  if (charY > 580) {
    sinkspeed = 0;
    fastspeed = 0;
  }
  if (charY <= 580) {
    sinkspeed = 2;
    fastspeed = 5;
  }
  if (charY < 80) {
    risespeed = 0;
  }
  if (charY >= 80) {
    risespeed = 2;
  }
  if (charX > width) {
    charX = 0;
  }
  if (charX < 0) {
    charX = 600;
  }
  if (sink) charY += sinkspeed;
  if (moveLeft) charX -= Horizontalspeed;
  if (moveRight) charX += Horizontalspeed;
  if (moveUp) charY -= risespeed;
  if (moveDown) charY += fastspeed;
}

void keyPressed() {

  if (key == 'a') {
    moveLeft = true;
  } else if (key == 'd') {
    moveRight = true;
  } else if (key == 'w') {
    moveUp = true;
    sink = false;
  } else if (key == 's') {
    moveDown = true;
    sink = false;
  }
}

void keyReleased() {

  if (key == 'a') {
    moveLeft = false;
  } else if (key == 'd') {
    moveRight = false;
  } else if (key == 'w') {
    moveUp = false;
    sink = true;
  } else if (key == 's') {
    moveDown = false;
    sink = true;
  }
}