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Snake (#2549)
* Create the Shopping Cart Lock app Will demonstrate tomorrow. Don't merge until I do 😁 * Fixes for HTotoo's comments 😎 * Improved audio the best I can. If nobody has any ideas to further improve high frequencies of the audio, the hardware may not be capable. I still need to check with line-out to better speaker to make sure it's not just the speaker, but it shouldn't be. * Compared against baseband_api.cpp - matched some things better but still playback seems to be missing higher fq sounds * renamed wav files to a more specific / less generic name * indentation + using variables instead of litteral names for wav files to use * indentation * Made a Snake game - enjoy * Code formatting. I always forget. * move to keep sort order * Update external.ld Sorry I should have also asked if there was any reason that address ranges 0xADDA0000--0xADDD0000 were skipped in external.ld. I assumed there wasn't so I changed it to be consecutive using the same 0x10000 step as the other modules. If there is any reason to skip them then we should add a comment to note it. Of course these are all just temporary address values used for linking and get overwritten by a kludgy "search & replace" during the build process. Resolves enhancement request #764 --------- Co-authored-by: gullradriel <gullradriel@no-mail.com> Co-authored-by: Mark Thompson <129641948+NotherNgineer@users.noreply.github.com>
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9 changed files with 629 additions and 2 deletions
234
firmware/application/external/snake/snake.cpp
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firmware/application/external/snake/snake.cpp
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/*
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* ------------------------------------------------------------
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* | Made by RocketGod |
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* | Find me at https://betaskynet.com |
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* | Argh matey! |
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* ------------------------------------------------------------
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*/
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#include "mbed.h"
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#include "SPI_TFT_ILI9341.h"
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#include "Arial12x12.h"
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#include "ui.hpp"
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#include "random.hpp"
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extern int game_state;
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#define SCREEN_WIDTH 240
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#define SCREEN_HEIGHT 320
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#define SNAKE_SIZE 10
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#define INFO_BAR_HEIGHT 25
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#define GAME_AREA_TOP (INFO_BAR_HEIGHT + 1)
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#define GAME_AREA_HEIGHT (SCREEN_HEIGHT - INFO_BAR_HEIGHT - 2)
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#define GRID_WIDTH ((SCREEN_WIDTH - 2) / SNAKE_SIZE)
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#define GRID_HEIGHT (GAME_AREA_HEIGHT / SNAKE_SIZE)
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#define STATE_MENU 0
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#define STATE_PLAYING 1
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#define STATE_GAME_OVER 2
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#define COLOR_BACKGROUND Black
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#define COLOR_SNAKE Green
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#define COLOR_FOOD Red
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#define COLOR_BORDER White
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Ticker game_timer;
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int snake_x[GRID_WIDTH * GRID_HEIGHT];
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int snake_y[GRID_WIDTH * GRID_HEIGHT];
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int snake_length = 1;
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int snake_dx = 1, snake_dy = 0;
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int food_x, food_y;
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int score = 0;
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int game_state = STATE_MENU;
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bool initialized = false;
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extern ui::Painter painter;
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void init_game();
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void update_game();
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void draw_screen();
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void draw_snake();
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void draw_full_snake();
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void erase_tail(int x, int y);
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void draw_food();
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void erase_food();
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void draw_score();
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void draw_borders();
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void spawn_food();
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bool check_collision();
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void show_menu();
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void show_game_over();
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void game_timer_check() {
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if (game_state == STATE_PLAYING) {
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update_game();
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}
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}
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void init_game() {
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claim(stdout);
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set_orientation(2);
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set_font((unsigned char*)Arial12x12);
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snake_x[0] = GRID_WIDTH / 2;
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snake_y[0] = GRID_HEIGHT / 2;
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snake_length = 1;
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snake_dx = 1;
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snake_dy = 0;
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score = 0;
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spawn_food();
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if (game_state == STATE_MENU) {
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show_menu();
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} else if (game_state == STATE_PLAYING) {
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draw_screen();
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}
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}
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void spawn_food() {
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bool valid;
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do {
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food_x = rand() % GRID_WIDTH;
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food_y = rand() % GRID_HEIGHT;
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valid = true;
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for (int i = 0; i < snake_length; i++) {
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if (snake_x[i] == food_x && snake_y[i] == 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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} while (!valid);
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}
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void update_game() {
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int new_x = snake_x[0] + snake_dx;
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int new_y = snake_y[0] + snake_dy;
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bool ate_food = (new_x == food_x && new_y == food_y);
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int tail_x = snake_x[snake_length - 1];
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int tail_y = snake_y[snake_length - 1];
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for (int i = snake_length - 1; i > 0; i--) {
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snake_x[i] = snake_x[i - 1];
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snake_y[i] = snake_y[i - 1];
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}
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snake_x[0] = new_x;
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snake_y[0] = new_y;
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if (ate_food) {
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snake_x[snake_length] = tail_x;
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snake_y[snake_length] = tail_y;
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snake_length++;
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score += 10;
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spawn_food();
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draw_food();
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} else {
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erase_tail(tail_x, tail_y);
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}
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draw_snake();
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draw_score();
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if (check_collision()) {
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draw_borders();
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game_state = STATE_GAME_OVER;
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show_game_over();
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return;
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}
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}
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bool check_collision() {
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if (snake_x[0] < 0 || snake_x[0] >= GRID_WIDTH || snake_y[0] < 0 || snake_y[0] >= GRID_HEIGHT) {
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return true;
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}
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for (int i = 1; i < snake_length; i++) {
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if (snake_x[0] == snake_x[i] && snake_y[0] == snake_y[i]) {
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return true;
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}
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}
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return false;
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}
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void draw_screen() {
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cls();
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background(COLOR_BACKGROUND);
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draw_borders();
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draw_full_snake();
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draw_food();
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draw_score();
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}
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void draw_snake() {
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fillrect(1 + snake_x[0] * SNAKE_SIZE, GAME_AREA_TOP + snake_y[0] * SNAKE_SIZE,
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1 + snake_x[0] * SNAKE_SIZE + SNAKE_SIZE, GAME_AREA_TOP + snake_y[0] * SNAKE_SIZE + SNAKE_SIZE, COLOR_SNAKE);
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}
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void draw_full_snake() {
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for (int i = 0; i < snake_length; i++) {
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fillrect(1 + snake_x[i] * SNAKE_SIZE, GAME_AREA_TOP + snake_y[i] * SNAKE_SIZE,
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1 + snake_x[i] * SNAKE_SIZE + SNAKE_SIZE, GAME_AREA_TOP + snake_y[i] * SNAKE_SIZE + SNAKE_SIZE, COLOR_SNAKE);
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}
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}
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void erase_tail(int x, int y) {
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fillrect(1 + x * SNAKE_SIZE, GAME_AREA_TOP + y * SNAKE_SIZE,
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1 + x * SNAKE_SIZE + SNAKE_SIZE, GAME_AREA_TOP + y * SNAKE_SIZE + SNAKE_SIZE, COLOR_BACKGROUND);
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}
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void draw_food() {
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fillrect(1 + food_x * SNAKE_SIZE, GAME_AREA_TOP + food_y * SNAKE_SIZE,
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1 + food_x * SNAKE_SIZE + SNAKE_SIZE, GAME_AREA_TOP + food_y * SNAKE_SIZE + SNAKE_SIZE, COLOR_FOOD);
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}
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void erase_food() {
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fillrect(1 + food_x * SNAKE_SIZE, GAME_AREA_TOP + food_y * SNAKE_SIZE,
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1 + food_x * SNAKE_SIZE + SNAKE_SIZE, GAME_AREA_TOP + food_y * SNAKE_SIZE + SNAKE_SIZE, COLOR_BACKGROUND);
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}
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void draw_score() {
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auto style = *ui::Theme::getInstance()->fg_blue;
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painter.draw_string({5, 5}, style, "Score: " + std::to_string(score));
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}
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void draw_borders() {
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rect(0, GAME_AREA_TOP - 1, SCREEN_WIDTH, GAME_AREA_TOP, COLOR_BORDER);
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rect(0, GAME_AREA_TOP, SCREEN_WIDTH, SCREEN_HEIGHT, COLOR_BORDER);
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}
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void show_menu() {
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cls();
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background(COLOR_BACKGROUND);
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auto style_yellow = *ui::Theme::getInstance()->fg_yellow;
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auto style_green = *ui::Theme::getInstance()->fg_green;
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auto style_blue = *ui::Theme::getInstance()->fg_blue;
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painter.draw_string({50, 40}, style_yellow, "* * * SNAKE * * *");
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painter.draw_string({0, 120}, style_blue, "USE THE D-PAD TO MOVE");
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painter.draw_string({0, 150}, style_blue, "EAT THE RED SQUARES TO GROW");
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painter.draw_string({0, 180}, style_blue, "DON'T HIT THE WALLS OR SELF");
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painter.draw_string({15, 240}, style_green, "** PRESS SELECT TO START **");
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}
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void show_game_over() {
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cls();
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background(COLOR_BACKGROUND);
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auto style_red = *ui::Theme::getInstance()->fg_red;
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auto style_yellow = *ui::Theme::getInstance()->fg_yellow;
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auto style_green = *ui::Theme::getInstance()->fg_green;
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painter.draw_string({75, 90}, style_red, "GAME OVER");
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painter.draw_string({74, 150}, style_yellow, "SCORE: " + std::to_string(score));
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painter.draw_string({20, 220}, style_green, "PRESS SELECT TO RESTART");
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wait(1);
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}
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int main() {
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if (!initialized) {
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initialized = true;
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game_timer.attach(&game_timer_check, 1.0 / 5.0);
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init_game();
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}
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while (1) {
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if (but_SELECT && (game_state == STATE_MENU || game_state == STATE_GAME_OVER)) {
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game_state = STATE_PLAYING;
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init_game();
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}
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}
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}
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