refactor: first step to final product by removing redundant code

src/window.cpp

@@ -33,17 +33,8 @@ void Window::draw_window() {
 	std::cout << std::flush;
 }
 
-void Window::clear_window() {
-	std::cout<<"\033[H" << std::flush;
-}
-
-void Window::tick(double frames_per_second) {
-	std::this_thread::sleep_for(std::chrono::milliseconds((int) (1000 / frames_per_second)));
-}
-
 void Window::update_score(Fruit &fruit, Body &body) {
-	if(m_score % 1 == 0 && m_score >= 1) {
-		fruit.m_total_eaten++;
+	if(m_score >= 1) {
 		m_score = 0;
 		body.m_body.push_back(Tail{2, 0, 0});
 	}
@@ -54,7 +45,7 @@ void Window::kill(bool &running) {
 }
 
 void Window::update_display(int fps) {
-	clear_window();
+	std::cout<<"\033[H" << std::flush;
 	draw_window();
-	tick(fps);
+	std::this_thread::sleep_for(std::chrono::milliseconds((int) (200))); // 1000 / fps; 200ms = 5fps
 }