//TODO 2
    // Make the red sphere rotate around the bouncing blue sphere (create a model matrix)
	// 1 turn should be done in 1 seconds - use variable "t" which is time in seconds
	// the red sphere should rotate around the other one (use mvp)
	// the red sphere should be half sized than the other sphere
	// the red sphere should rotate around the other with radius stored in "planetDistance" variable
	// Use glm::rotate, glm::translate, glm::scale
    // Store the resulting transform in "sphere2model" variable
    // Hint - there are 2 possibilities how to do it, either by 2x translate or translate + rotate
    // Hint 2 - sphere1model should be the last applied transform
glm::mat4 sphere2model = glm::mat4(1); //store it here

	glm::vec3 position2 = position + glm::vec3(planetDistance, 0, 0);
	sphere2model = glm::rotate(glm::radians(360 * t), glm::vec3(0, 1, 0)) * glm::translate(position2) * glm::scale(glm::vec3(0.5f, 0.5f, 0.5f););


//TODO 3
    //Change the code so that the mouse wheel moves the moon further away or closer to the planet
    //React to SDL_BUTTON_WHEELDOWN and SDL_BUTTON_WHEELUP
    //Like:
	//if(button == SDL_BUTTON_WHEELDOWN) then do something, similarly for SDL_BUTTON_WHEELUP
	if (button == SDL_BUTTON_WHEELDOWN)
	{
		planetDistance += 0.25f;
		redraw();
	}
	if (button == SDL_BUTTON_WHEELUP)
	{
		planetDistance -= 0.25f;
		redraw();
	}