fix: blocks have proper collision and can be broken. Basically done.

src/window.cpp

@@ -7,6 +7,10 @@ void Window::tick(int fps) {
 	std::this_thread::sleep_for(std::chrono::milliseconds(fps)); // 1000 / fps; 200ms = 5fps
 }
 
+void Window::clear() {
+	std::cout << "\033[H" << std::flush;
+}
+
 void Window::update_display(Paddle &paddle, Ball &ball, Block (&block_list)[15]) {
 	for(std::array<char, COL> &row : m_board) { row.fill('.'); }
 	for(int i = 0; i < paddle._size; i++) {
@@ -18,7 +22,7 @@ void Window::update_display(Paddle &paddle, Ball &ball, Block (&block_list)[15])
 		}
 	}
 	m_board[ball.m_origin.m_row][ball.m_origin.m_col] = '*';
-	std::cout << "\033[H" << std::flush;
+	clear();
 	for(std::array<char, COL> &row : m_board) {
 		for(char &col : row) {
 			std::cout << col << " ";