void followTheLeader() //Function that prints a circle that moves towards the x and y coordinates of the mouse.
{
	int mouseX = 0; //Initialisation of the variabls for the mouse position.
	int mouseY = 0;
	int windowWidth = 640; //Initialisation of the window size.
	int windowHeight = 480;
	bool goTime = true; //Initialisation of the loop control variable.
	int radius = 5; //Initialisation of radius of circle.
	float circleX = 100; //Initialisation of the x and y values of the circle.
	float circleY = 100;
	float circleXspeed = 3.3; //Initialisation of the x and y change, x and y speed.
	float circleYspeed = 3.3;
	while (goTime)
	{

		SDL_Event event; //Initialises SDL event.
		SDL_GetMouseState(&mouseX, &mouseY); //Retrieves current mouse coordinates and assigns it to mouseX and mouseY.
		if (mouseX >= circleX) //If mouse coordinate x is greater than circle coordinate, value circle coordinate.
		{
			circleX = circleX + circleXspeed;
		}
		if (mouseX < circleX) //If mouseX is greater than circleX, value subtracted from circleX.
		{
			circleX = circleX - circleXspeed;
		}
		if (mouseY >= circleY) //If muouse Y is great than circleY, value added to circleY.
		{
			circleY = circleY + circleYspeed;
		}
		if (mouseY < circleY) //If mouseY is less than circleY, value subtracted from circleY.
		{
			circleY = circleY - circleYspeed;
		}

		glm::vec2 circleCentre2(circleX, circleY); //new x and y coordinates assigned to vector circleCentre.
		glm::vec3 circleColor(255, 0, 0); //Initialises 3D colour vector to hold circle colour.
		CGG::SetBackground(0, 0, 0);
		drawCircle(radius, circleCentre2, circleColor); //Draws circle, inputting circleCentre and circleColour vectors.

		CGG::ProcessFrame();
		//if (!CGG::ProcessFrame())goTime = false;
		if (SDL_GetMouseState(NULL, NULL) & SDL_BUTTON(SDL_BUTTON_RIGHT)) //If right button pressed, program exits to mainMenu.
		{
			CGG::Cleanup();
			mainMenu();
			break;
		}
		if (SDL_GetMouseState(NULL, NULL) & SDL_BUTTON(SDL_BUTTON_LEFT)) //If left button is pressed, radius of circle is increased until 200 is reached, then it is reset.
		{
			radius = radius + 1;
			if (radius > 200)
			{
				radius = 0;
			}
		}
	}
}