Initial upload
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18
Makefile
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18
Makefile
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all: serpent
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WARNINGS = -Wall
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DEBUG = -ggdb -fno-omit-frame-pointer
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OPTIMIZE = -O2
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serpent: Makefile serpent.c
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$(CC) -o $@ $(WARNINGS) $(DEBUG) $(OPTIMIZE) serpent.c
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clean:
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rm -f serpent
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install:
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echo "Installing is not supported"
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run:
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./serpent
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291
serpent.c
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291
serpent.c
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/*
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* serpent.c
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*
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* Copyright 2023 Darius Drake
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* SPDX-License-Identifier: GPL-3.0-or-later
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*/
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/* Libraries */
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#include <stdio.h>
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#include <stdlib.h>
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#include <getopt.h>
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#include <stdbool.h>
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#include <time.h>
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#include <unistd.h>
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#include <termios.h>
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#include <fcntl.h>
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/* */
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/* Program information */
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#define NAME "serpent"
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#define VERSION 0.1
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/* */
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/* global variables/constants */
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#define REFRESH_RATE 0.08 // refresh rate (in seconds)
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#define START_SNAKE_LEN 5 // initial snake length
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#define SNAKE_BODY '*' // snake's body
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#define SNAKE_HEAD_U 'v' // head when going up
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#define SNAKE_HEAD_D '^' // head when going down
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#define SNAKE_HEAD_L '>' // head when going left
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#define SNAKE_HEAD_R '<' // head when going right
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#define FOOD '@' // normal food
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#define FOOD_SCORE 1 // score increase when snake eats food
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#define BORDER_CORNER '+' // character at corners of border
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#define BORDER_VERT '|' // character for vertical border
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#define BORDER_HORI '-' // character for horizontal border
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#define SCREEN_WIDTH 40 // the virtual screen width
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#define SCREEN_HEIGHT 30 // the virtual screen height
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/* */
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typedef enum { UP, DOWN, LEFT, RIGHT } Direction;
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typedef enum { RUNNING, PAUSED, STOPPED } GameState;
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typedef struct {
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int X;
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int Y;
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} Point;
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typedef struct {
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char borderCor;
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char borderVer;
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char borderHor;
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unsigned int width;
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unsigned int height;
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} Board;
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typedef struct {
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GameState state;
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unsigned int points;
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char* player;
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} Game;
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typedef struct {
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Point position;
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char sprite;
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SnakeNode* next;
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} SnakeNode;
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typedef struct {
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Direction direction;
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unsigned int length;
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SnakeNode* head;
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SnakeNode* tail;
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} Snake;
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typedef struct {
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Point position;
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unsigned int points;
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char food;
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} Food;
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typedef struct {
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char borderCor;
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char borderVer;
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char borderHor;
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unsigned int width;
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unsigned int height;
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} Board;
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// Function prototypes
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void initializeGame(Game *game, Board *board, Snake *snake, Food *food);
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void clearScreen();
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void waitForKeypress();
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void displayLogo();
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void displayMainMenu();
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void displayControls();
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void displayInfo();
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void argControls();
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void argHelp();
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void argVersion();
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int main (int argc, char **argv) {
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Game game;
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Board board;
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Food food;
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Snake snake;
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int option;
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static const char* short_options = "chv";
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static struct option long_options[] = {
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{"show-controls", no_argument, NULL, 'c'},
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{"help", no_argument, NULL, 'h'},
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{"version", no_argument, NULL, 'v'},
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{NULL, 0, NULL, 0}
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};
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while ((option = getopt_long (argc, argv, short_options, long_options, NULL)) != -1) {
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switch (option) {
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case 'c':
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argControls();
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break;
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case 'h':
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argHelp();
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break;
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case 'v':
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argVersion();
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break;
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case '?':
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fprintf(stderr, "Use '-h, --help' for help.\n");
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return 1;
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}
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}
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return 0;
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}
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void initializeGame(Game *game, Board *board, Snake *snake, Food *food) {
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game->state = RUNNING;
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game->points = 0;
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// Initialize snake direction and head
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snake->direction = RIGHT;
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snake->head = (SnakeNode*)malloc(sizeof(SnakeNode));
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snake->head->sprite = SNAKE_HEAD_R;
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snake->head->position.X = SCREEN_HEIGHT / 2;
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snake->head->position.Y = SCREEN_HEIGHT / 2;
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snake->head->next = NULL;
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// Initialize snake body
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SnakeNode *currentSegment = snake->head;
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for (int i = 1; i < START_SNAKE_LEN; ++i) {
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SnakeNode *newSegment = (SnakeNode*)malloc(sizeof(SnakeNode));
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newSegment->sprite = SNAKE_BODY;
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newSegment->position.X = snake->head->position.X - i;
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newSegment->position.Y = snake->head->position.Y;
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newSegment->next = NULL;
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currentSegment->next = newSegment; // Link the current segment to the new one
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currentSegment = newSegment; // Move to the new segment
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}
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// Set the tail of the snake
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snake->tail = currentSegment;
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}
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// Function for clearing the console
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void clearScreen() {
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printf("\e[1;1H\e[2J");
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}
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// Function for waiting for keypress
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void waitForKeypress() {
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struct termios oldt, newt;
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tcgetattr(STDIN_FILENO, &oldt);
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newt = oldt;
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newt.c_lflag &= ~(ICANON | ECHO);
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tcsetattr(STDIN_FILENO, TCSANOW, &newt);
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while (getchar() != '\n'); // Consume any remaining characters in the input buffer
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getchar(); // Wait for a key press
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tcsetattr(STDIN_FILENO, TCSANOW, &oldt);
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}
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// Function for displaying the logo of the game
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void displayLogo() {
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printf(" ____ \n");
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printf(" ________________________/ O \\___/\n");
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printf("<_____________________________/ \\\n");
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printf(" __ _ \n");
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printf("/ _\\ ___ _ __ _ __ ___ _ __ | |_ \n");
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printf("\\ \\ / _ \\ '__| '_ \\ / _ \\ '_ \\| __|\n");
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printf("_\\ \\ __/ | | |_) | __/ | | | |_ \n");
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printf("\\__/\\___|_| | .__/ \\___|_| |_|\\__|\n");
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printf(" |_| \n");
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printf("\n");
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}
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// Function for displaying the main menu
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void displayMainMenu() {
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displayLogo();
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printf("Welcome to serpent!\n");
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printf("\n");
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printf(" Select an option:\n");
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printf(" 1. Play\n");
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printf(" 2. Show leader board\n");
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printf(" 3. Show controls\n");
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printf(" 4. Show Info\n");
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printf(" 5. Exit\n");
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printf("\n");
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printf(" Choose [1-5]: ");
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}
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// Function for tisplaying the game controls
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void displayControls() {
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displayLogo();
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printf("Controls.\n");
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printf("\n");
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printf(" Movement:\n");
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printf(" ↑: move up\n");
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printf(" ←: move to the left\n");
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printf(" →: move to the right\n");
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printf(" ↓: move down\n");
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printf(" Game:\n");
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printf(" q: quit\n");
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printf(" p: pause\n");
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printf(" r: restart\n");
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printf("\n");
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printf("Press any key to go back... ");
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}
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// Function for displaying the game info
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void displayInfo() {
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displayLogo();
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printf("About this game.\n");
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printf("\n");
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printf(" Author: Darius Drake\n");
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printf(" License: GPL v3\n");
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printf(" Contribute:\n");
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printf(" The source code is available on GitHub -> https://github.com/d4r1us-drk/serpent\n");
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printf(" Feel free to contribute with ideas, issues or pull requests.\n");
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printf("\n");
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printf("Press any key to go back... ");
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}
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// Function for displaying the game controls in the command line
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void argControls() {
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printf("%s controls.\n", NAME);
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printf("Movement:\n");
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printf("\t↑: move up\n");
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printf("\t←: move to the left\n");
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printf("\t→: move to the right\n");
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printf("\t↓: move down\n");
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printf("Game:\n");
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printf("\tq: quit\n");
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printf("\tp: pause\n");
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printf("\tr: restart\n");
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}
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// Function to display the help message in the command line
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void argHelp() {
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printf("Usage: %s [OPTIONS]\n", NAME);
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printf("Play the all time classic snake game in the console.\n\n");
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printf("Options:\n");
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printf("\t-c, --show-controls Show the controls for the game.\n");
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printf("\t-h, --help Display this help message and exit.\n");
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printf("\t-v, --version Display version and exit.\n");
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}
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// Function to display the version in the command line
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void argVersion() {
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printf("%s. version: %.1lf\n", NAME, VERSION);
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printf("Author: Darius Drake\n");
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printf("License: GPL v3\n");
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printf("Contribute:\n");
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printf(" The source code is available on GitHub -> https://github.com/d4r1us-drk/serpent\n");
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printf(" Feel free to contribute with ideas, issues or pull requests.\n");
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}
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13
serpent.md
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13
serpent.md
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# Serpent
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## Feautures
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- **Great ASCII graphics:**
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i. The snake will have different head characters depending on which direction it's going:
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- **Up:** v
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- **Down:** ^
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- **Left:** >
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- **Right:** <
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ii. The game board has the following characters:
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- **Corners:** +
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- **Vertical borders:** |
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- **Horizontal borders:** -
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iii.
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