refactor: renamed snake to element and moved fruit to element. Removed a lot of unused functions and variables

src/element.cpp

@@ -0,0 +1,78 @@
+#include "element.hpp"
+#include <cstdlib>
+#include <ctime>
+
+Fruit::Fruit() {
+	std::srand(std::time(0));
+	m_point.set_new_point((rand() % 9), (rand() % 9), 0);
+}
+
+void Fruit::get_new_pos(std::array<std::array<char, COL>, ROW> &board, Head &head, int &score) {
+	if(m_point.m_row == head.m_head.m_row && m_point.m_col == head.m_head.m_col) {
+		m_point.set_new_point((rand() % 9), (rand() % 9), 0);
+		score++;
+	}
+}
+
+Head::Head() {
+	m_head.set_new_point(5, 5, 2);
+}
+
+void Head::get_new_pos() {
+	if (m_head.m_direction == -1) {
+		if (m_head.m_col <= 0) m_head.m_col = COL - 1;
+		else m_head.m_col--;
+	} else if (m_head.m_direction == 1) {
+		if (m_head.m_col >= COL - 1) m_head.m_col = 0;
+		else m_head.m_col++;
+	} else if (m_head.m_direction == -2) {
+		if (m_head.m_row <= 0) m_head.m_row = ROW - 1;
+		else m_head.m_row--;
+	} else if (m_head.m_direction == 2) {
+		if (m_head.m_row >= ROW - 1) m_head.m_row = 0;
+		else m_head.m_row++;
+	}
+}
+
+Body::Body() {
+	m_score = 0;
+	m_collision = false;
+}
+
+void Body::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) {
+				m_collision = true;
+			}
+		}
+	}
+}
+
+void Body::add_tail() {
+	if(m_score >= 1) {
+		m_score = 0;
+		m_body.push_back(Tail{});
+	}
+}
+
+void Body::get_new_points(Head &head) {
+	for (int i = 0; i < m_body.size(); i++) {
+		m_body.front().m_previous_tail_pos.set_new_point(
+				head.m_previous_head.m_row,
+				head.m_previous_head.m_col,
+				head.m_previous_head.m_direction);
+		if(i > 0) {
+			m_body.at(i).m_previous_tail_pos.set_new_point(
+					m_body.at(i - 1).m_tail_pos.m_row,
+					m_body.at(i - 1).m_tail_pos.m_col,
+					m_body.at(i - 1).m_tail_pos.m_direction);
+		}
+	}
+	for (int i = 0; i < m_body.size(); i++) {
+		m_body.at(i).m_tail_pos.set_new_point(
+				m_body.at(i).m_previous_tail_pos.m_row,
+				m_body.at(i).m_previous_tail_pos.m_col,
+				m_body.at(i).m_previous_tail_pos.m_direction);
+	}
+}