long start = System.nanoTime();

		// If the player is alive, this should move the player in the direction of the
		// key that has been pressed
		// Note: See keyPressed and keyReleased methods in the GameManager class.
		this.player.performAction();

		// If the enemy is alive, the enemy must move towards the goal. The goal object
		// is obtained
		// via the GameManager object that is given at the time of creating an Enemy
		// object.
		// Note: The amount that the enemy moves by must be much smaller than that of
		// the player above
		// or else the game becomes too hard to play.
		for (int i = 0; i < this.numEnemies; i++) {
			this.enemies[i].performAction();
		}

		if ((Math.abs(this.goal.getX() - this.player.getX()) < (this.goal.getCurrentImage().getWidth() / 2))
				&& (Math.abs(this.goal.getY() - this.player.getY()) < (this.goal.getCurrentImage().getWidth() / 2))) {
			for (int i = 0; i < this.numEnemies; i++) {
				// Sets the image of the enemy to the "dead" image and sets its status to
				// indicate dead
				this.enemies[i].die();
			}
			// Sets the image of the enemy to the "dead" image and sets its status to
			// indicate dead
			this.goal.die();

			// Sets the background of the stage to the finished game background.
			this.stage.setGameOverBackground();
			this.continueGame = false;
		}
		// If an enemy is close to the goal, the player and goal die
		int j = 0;
		while (j < this.numEnemies) {
			if ((Math.abs(this.goal.getX() - this.enemies[j].getX()) < (this.goal.getCurrentImage().getWidth() / 2))
					&& (Math.abs(this.goal.getY() - this.enemies[j].getY()) < (this.goal.getCurrentImage().getWidth()
							/ 2))) {
				this.player.die();
				this.goal.die();
				this.stage.setGameOverBackground();
				j = this.numEnemies;
				this.continueGame = false;
			}
			j++;
		}
		try {
			// Draw stage
			this.canvasGraphics.drawImage(stage.getCurrentImage(), 0, 0, null);
			// Draw player
			this.canvasGraphics.drawImage(player.getCurrentImage(),
					this.player.getX() - (this.player.getCurrentImage().getWidth() / 2),
					this.player.getY() - (this.player.getCurrentImage().getHeight() / 2), null);
			// Draw enemies
			for (int i = 0; i < this.numEnemies; i++) {
				this.canvasGraphics.drawImage(this.enemies[i].getCurrentImage(),
						this.enemies[i].getX() - (this.enemies[i].getCurrentImage().getWidth() / 2),
						this.enemies[i].getY() - (this.enemies[i].getCurrentImage().getHeight() / 2), null);
			}
			// Draw goal
			this.canvasGraphics.drawImage(this.goal.getCurrentImage(),
					this.goal.getX() - (this.goal.getCurrentImage().getWidth() / 2),
					this.goal.getY() - (this.goal.getCurrentImage().getHeight() / 2), null);
		} catch (Exception e) {
			// -----------------------------------//
			System.err.println(e.getMessage());
		}
		// Draw everything.
		this.gameGraphics.drawImage(this.canvas, this.borderLeft, this.borderTop, this);
		long end = System.nanoTime();
		this.gameGraphics.drawString("FPS: " + String.format("%2d", (int) (1000000000.0 / (end - start))),
				this.borderLeft + 50, this.borderTop + 50);