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feat: Add freestanding C++17 OOP kernel subsystem and interactive Snake Game
- Add freestanding C++17 runtime with operator new/delete, pure virtual handlers, and global constructor execution in kernel/cpp/cxx_runtime.cpp - Implement C++ Object-Oriented telemetry and hardware services with polymorphism in kernel/cpp/cpp_module.cpp and include/kernel/cpp_kernel.h - Add interactive ANSI Snake Game in userland/lazybox/snake.c with real-time keyboard control and automated simulation mode - Initialize C++ subsystem during kernel boot step [8/14] in kernel/main.c - Add LazyBox applets: 'snake', 'cppinfo', and 'cpptest'
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@@ -30,6 +30,8 @@
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#include <mm/kmalloc.h>
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#include <kernel/rust.h>
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#include <kernel/sub_lang.h>
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#include <kernel/cpp_kernel.h>
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#include <userland/snake.h>
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#include <arch/arch.h>
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#include <kernel/printk.h>
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#include <lib/string.h>
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@@ -950,6 +952,17 @@ static int applet_subquote(int argc, char** argv) {
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return 0;
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}
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static int applet_cppinfo(int argc, char** argv) {
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(void)argc; (void)argv;
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cpp_kernel_print_status();
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return 0;
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}
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static int applet_cpptest(int argc, char** argv) {
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(void)argc; (void)argv;
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return cpp_test_oop_subsystem();
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}
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static int applet_whoami(int argc, char** argv) {
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(void)argc; (void)argv;
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const user_account_t* u = auth_get_current_user();
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@@ -2008,6 +2021,9 @@ static const lazybox_applet_t applets[] = {
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{"tree", applet_tree, "tree [dir]", "Visual directory tree graph", "Filesystem"},
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{"find", applet_find, "find [path] [-name query]", "Recursive file search", "Filesystem"},
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{"traceroute", applet_traceroute, "traceroute <host/ip>", "Trace network route hops", "Network"},
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{"snake", applet_snake, "snake [--demo]", "Interactive ANSI Snake Game", "Games"},
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{"cppinfo", applet_cppinfo, "cppinfo", "C++ OOP kernel telemetry", "System"},
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{"cpptest", applet_cpptest, "cpptest", "C++ polymorphism & new/del", "System"},
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{NULL, NULL, NULL, NULL, NULL}
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};
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@@ -0,0 +1,240 @@
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// Interactive Classic Snake Game for SUB-OS
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// Features ANSI graphics, real-time keyboard control, dynamic scoring & demo mode
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#include <userland/snake.h>
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#include <drivers/keyboard.h>
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#include <drivers/tty.h>
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#include <arch/x86_64/pit.h>
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#include <crypto/crypto.h>
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#include <lib/string.h>
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#include <lib/printf.h>
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#include <kernel/printk.h>
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#define BOARD_WIDTH 32
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#define BOARD_HEIGHT 16
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#define MAX_SNAKE_LEN 256
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typedef enum {
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DIR_UP,
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DIR_DOWN,
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DIR_LEFT,
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DIR_RIGHT
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} direction_t;
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typedef struct {
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int x;
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int y;
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} point_t;
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static point_t snake[MAX_SNAKE_LEN];
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static int snake_len = 4;
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static direction_t snake_dir = DIR_RIGHT;
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static point_t food;
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static int score = 0;
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static bool game_over = false;
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static void spawn_food(void) {
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bool valid = false;
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while (!valid) {
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food.x = 1 + (int)(prng_rand32() % (BOARD_WIDTH - 2));
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food.y = 1 + (int)(prng_rand32() % (BOARD_HEIGHT - 2));
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valid = true;
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for (int i = 0; i < snake_len; i++) {
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if (snake[i].x == food.x && snake[i].y == food.y) {
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valid = false;
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break;
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}
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}
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}
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}
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static void snake_init(void) {
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snake_len = 4;
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snake_dir = DIR_RIGHT;
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score = 0;
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game_over = false;
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int start_x = BOARD_WIDTH / 4;
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int start_y = BOARD_HEIGHT / 2;
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for (int i = 0; i < snake_len; i++) {
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snake[i].x = start_x - i;
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snake[i].y = start_y;
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}
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spawn_food();
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}
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static void snake_render(void) {
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tty_set_cursor(0, 0);
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// Title & Score Header
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printk(ANSI_BRIGHT_CYAN "╔══════════════════════════════════════════════╗\n" ANSI_RESET);
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printk(ANSI_BRIGHT_CYAN "║" ANSI_BRIGHT_YELLOW " 🐍 SUB-OS Classic Snake Game (ANSI) " ANSI_BRIGHT_CYAN "║\n" ANSI_RESET);
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printk(ANSI_BRIGHT_CYAN "║" ANSI_WHITE " Score: " ANSI_BRIGHT_GREEN "%-4d" ANSI_WHITE " Length: " ANSI_BRIGHT_GREEN "%-3d" ANSI_WHITE " Controls: WASD/Q " ANSI_BRIGHT_CYAN "║\n" ANSI_RESET, score, snake_len);
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printk(ANSI_BRIGHT_CYAN "╠══════════════════════════════════════════════╣\n" ANSI_RESET);
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// Render Board Grid
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char board[BOARD_HEIGHT][BOARD_WIDTH + 1];
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for (int y = 0; y < BOARD_HEIGHT; y++) {
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for (int x = 0; x < BOARD_WIDTH; x++) {
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if (y == 0 || y == BOARD_HEIGHT - 1 || x == 0 || x == BOARD_WIDTH - 1) {
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board[y][x] = '#';
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} else {
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board[y][x] = ' ';
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}
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}
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board[y][BOARD_WIDTH] = '\0';
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}
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// Place Food
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if (food.y >= 0 && food.y < BOARD_HEIGHT && food.x >= 0 && food.x < BOARD_WIDTH) {
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board[food.y][food.x] = '*';
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}
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// Place Snake Body
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for (int i = 1; i < snake_len; i++) {
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if (snake[i].y >= 0 && snake[i].y < BOARD_HEIGHT && snake[i].x >= 0 && snake[i].x < BOARD_WIDTH) {
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board[snake[i].y][snake[i].x] = 'o';
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}
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}
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// Place Snake Head
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if (snake[0].y >= 0 && snake[0].y < BOARD_HEIGHT && snake[0].x >= 0 && snake[0].x < BOARD_WIDTH) {
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board[snake[0].y][snake[0].x] = 'O';
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}
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// Draw Grid with Colors
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for (int y = 0; y < BOARD_HEIGHT; y++) {
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printk(ANSI_BRIGHT_CYAN "║ " ANSI_RESET);
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for (int x = 0; x < BOARD_WIDTH; x++) {
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char c = board[y][x];
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if (c == '#') {
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printk(ANSI_BRIGHT_BLUE "█" ANSI_RESET);
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} else if (c == 'O') {
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printk(ANSI_BRIGHT_GREEN "O" ANSI_RESET);
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} else if (c == 'o') {
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printk(ANSI_GREEN "o" ANSI_RESET);
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} else if (c == '*') {
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printk(ANSI_BRIGHT_RED "★" ANSI_RESET);
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} else {
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printk(" ");
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}
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}
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printk(ANSI_BRIGHT_CYAN " ║\n" ANSI_RESET);
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}
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printk(ANSI_BRIGHT_CYAN "╚══════════════════════════════════════════════╝\n" ANSI_RESET);
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}
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static void snake_step(void) {
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point_t next_head = snake[0];
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switch (snake_dir) {
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case DIR_UP: next_head.y--; break;
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case DIR_DOWN: next_head.y++; break;
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case DIR_LEFT: next_head.x--; break;
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case DIR_RIGHT: next_head.x++; break;
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}
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// Wall collision
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if (next_head.x <= 0 || next_head.x >= BOARD_WIDTH - 1 ||
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next_head.y <= 0 || next_head.y >= BOARD_HEIGHT - 1) {
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game_over = true;
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return;
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}
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// Self collision
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for (int i = 0; i < snake_len; i++) {
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if (snake[i].x == next_head.x && snake[i].y == next_head.y) {
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game_over = true;
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return;
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}
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}
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// Food check
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bool ate_food = (next_head.x == food.x && next_head.y == food.y);
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if (ate_food) {
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score += 10;
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if (snake_len < MAX_SNAKE_LEN - 1) {
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snake_len++;
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}
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spawn_food();
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}
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// Shift body
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for (int i = snake_len - 1; i > 0; i--) {
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snake[i] = snake[i - 1];
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}
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snake[0] = next_head;
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}
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int applet_snake(int argc, char** argv) {
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bool demo_mode = false;
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if (argc >= 2 && (strcmp(argv[1], "--demo") == 0 || strcmp(argv[1], "-d") == 0)) {
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demo_mode = true;
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}
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snake_init();
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if (demo_mode) {
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printk(ANSI_BRIGHT_CYAN "Running Snake Game Simulation Demo...\n" ANSI_RESET);
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for (int step = 0; step < 15; step++) {
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// Simple autonomous AI chasing food
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if (food.x > snake[0].x && snake_dir != DIR_LEFT) snake_dir = DIR_RIGHT;
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else if (food.x < snake[0].x && snake_dir != DIR_RIGHT) snake_dir = DIR_LEFT;
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else if (food.y > snake[0].y && snake_dir != DIR_UP) snake_dir = DIR_DOWN;
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else if (food.y < snake[0].y && snake_dir != DIR_DOWN) snake_dir = DIR_UP;
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snake_step();
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if (game_over) break;
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}
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snake_render();
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printk(ANSI_BRIGHT_GREEN "Snake Game Demo Finished! Final Score: %d\n" ANSI_RESET, score);
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return 0;
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}
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printk("\033[2J\033[H");
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snake_render();
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int loop_counter = 0;
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while (!game_over) {
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if (keyboard_has_key()) {
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uint16_t key = keyboard_get_key();
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char c = (char)(key & 0xFF);
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if (c == 'q' || c == 'Q' || c == 27) { // Q or ESC
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break;
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} else if ((c == 'w' || c == 'W' || key == KEY_UP) && snake_dir != DIR_DOWN) {
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snake_dir = DIR_UP;
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} else if ((c == 's' || c == 'S' || key == KEY_DOWN) && snake_dir != DIR_UP) {
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snake_dir = DIR_DOWN;
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} else if ((c == 'a' || c == 'A' || key == KEY_LEFT) && snake_dir != DIR_RIGHT) {
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snake_dir = DIR_LEFT;
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} else if ((c == 'd' || c == 'D' || key == KEY_RIGHT) && snake_dir != DIR_LEFT) {
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snake_dir = DIR_RIGHT;
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}
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}
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snake_step();
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snake_render();
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#if defined(__x86_64__)
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pit_sleep(70);
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#else
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for (volatile int d = 0; d < 200000; d++);
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#endif
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loop_counter++;
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if (loop_counter > 500) break; // Avoid infinite loop in unattended tests
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}
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tty_set_cursor(BOARD_HEIGHT + 5, 0);
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if (game_over) {
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printk(ANSI_BRIGHT_RED "\n💥 GAME OVER! Final Score: %d (Length: %d)\n" ANSI_RESET, score, snake_len);
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} else {
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printk(ANSI_YELLOW "\nGame exited. Final Score: %d\n" ANSI_RESET, score);
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}
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return 0;
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}
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