refactor: renaming functions and removing old functions

src/element.cpp

@@ -39,7 +39,7 @@ Body::Body() {
 	m_collision = false;
 }
 
-void Body::collision(Head &head) {
+void Body::check_collision(Head &head) {
 	for(int i = 0; i < m_body.size(); i++) {
 		if(m_body.at(i).m_tail_pos.m_row == head.m_head.m_row) {
 			if(m_body.at(i).m_tail_pos.m_col == head.m_head.m_col) {
@@ -49,7 +49,7 @@ void Body::collision(Head &head) {
 	}
 }
 
-void Body::add_tail() {
+void Body::check_new_tail() {
 	if(m_score >= 1) {
 		m_score = 0;
 		m_body.push_back(Tail{});

src/main.cpp

@@ -18,8 +18,8 @@ int main () {
 			std::ref(running));
 
 	while (running) {
-		body.collision(head);
-		body.add_tail();
+		body.check_collision(head);
+		body.check_new_tail();
 		if(body.m_body.size() >= (ROW * COL)) {
 			std::cout << "You win! Score: " + std::to_string(body.m_body.size()) << std::endl;
 			running = false;