Small snake game in C
| 1 | #include "snake.h" |
| 2 | |
| 3 | bool start_animation() { |
| 4 | |
| 5 | struct winsize current_size; |
| 6 | ioctl(STDOUT_FILENO, TIOCGWINSZ, ¤t_size); |
| 7 | |
| 8 | struct timespec mili10 = {0, 1000000 * 10}; |
| 9 | |
| 10 | char *snake[3][7] = { |
| 11 | { |
| 12 | " ________ ", |
| 13 | " _/ _ \\_", |
| 14 | "________/ (_) ", |
| 15 | "\\ \\ ", |
| 16 | "/_______/ _ ", |
| 17 | " \\_ (_) _", |
| 18 | " \\________/ " |
| 19 | }, |
| 20 | { |
| 21 | " ", |
| 22 | "________", |
| 23 | "\\ /", |
| 24 | " \\ / ", |
| 25 | " \\ / ", |
| 26 | "___\\/___", |
| 27 | " ", |
| 28 | }, |
| 29 | { |
| 30 | " ", |
| 31 | "__ ", |
| 32 | " \\_____ ", |
| 33 | " \\", |
| 34 | " _____/", |
| 35 | "__/ ", |
| 36 | " " |
| 37 | } |
| 38 | }; |
| 39 | |
| 40 | uint8_t width_snake[3] = {}; |
| 41 | |
| 42 | { |
| 43 | uint8_t i; |
| 44 | |
| 45 | for (i = 0; i < 3; i++) |
| 46 | width_snake[i] = (uint8_t) strlen(snake[i][0]); |
| 47 | } |
| 48 | |
| 49 | uint8_t middle; |
| 50 | |
| 51 | uint8_t height = 7; |
| 52 | uint8_t width = width_snake[0] + width_snake[1] + width_snake[2]; |
| 53 | |
| 54 | for (middle = 1; width < current_size.ws_col; middle++) |
| 55 | width += width_snake[1]; |
| 56 | |
| 57 | int32_t end = current_size.ws_col + width; |
| 58 | |
| 59 | |
| 60 | |
| 61 | while (end >= 0) { |
| 62 | |
| 63 | ioctl(STDOUT_FILENO, TIOCGWINSZ, ¤t_size); |
| 64 | |
| 65 | int32_t start = end - width; |
| 66 | |
| 67 | int32_t i, j; |
| 68 | |
| 69 | char string[1000] = {}; |
| 70 | ssize_t length_string = read(STDIN_FILENO, string, sizeof(string) - 1); |
| 71 | |
| 72 | if (length_string > 0) { |
| 73 | |
| 74 | string[length_string] = '\0'; |
| 75 | |
| 76 | |
| 77 | if (toupper(string[0]) == 'Q') |
| 78 | return false; |
| 79 | |
| 80 | if (string[0] == '\n') |
| 81 | break; |
| 82 | } |
| 83 | |
| 84 | printf("\033[2J\033[H"); |
| 85 | |
| 86 | for (j = 0; j < ((height > current_size.ws_row) ? current_size.ws_row : height) ; j++) { |
| 87 | |
| 88 | for (i = 0; i < current_size.ws_col; i++) { |
| 89 | int32_t index = i - start; |
| 90 | |
| 91 | if (index >= 0 && index < width) { |
| 92 | if (index < width_snake[0]) { |
| 93 | printf("%c", snake[0][j][index]); |
| 94 | } else if (index < width_snake[0] + width_snake[1] * middle) { |
| 95 | printf("%c", snake[1][j][(index - width_snake[0]) % width_snake[1]]); |
| 96 | } else { |
| 97 | printf("%c", snake[2][j][index - (width_snake[0] + width_snake[1] * middle)]); |
| 98 | } |
| 99 | } else { |
| 100 | printf(" "); |
| 101 | } |
| 102 | } |
| 103 | |
| 104 | printf("\n"); |
| 105 | |
| 106 | } |
| 107 | fflush(stdout); |
| 108 | |
| 109 | end--; |
| 110 | |
| 111 | nanosleep(&mili10, NULL); |
| 112 | } |
| 113 | return true; |
| 114 | } |
| 115 | |
| 116 | bool draw_menu(main_menu menu, struct winsize window_size) { |
| 117 | |
| 118 | char *menu_string[] = {"NEW GAME", "SETTINGS", "EXIT"}; |
| 119 | |
| 120 | const uint8_t width_small = 8; |
| 121 | const uint8_t height_small = 5; |
| 122 | |
| 123 | char *menu_string_big[][6] = { |
| 124 | {"███╗ ██╗███████╗██╗ ██╗ ██████╗ █████╗ ███╗ ███╗███████╗", |
| 125 | "████╗ ██║██╔════╝██║ ██║ ██╔════╝ ██╔══██╗████╗ ████║██╔════╝", |
| 126 | "██╔██╗ ██║█████╗ ██║ █╗ ██║ ██║ ███╗███████║██╔████╔██║█████╗ ", |
| 127 | "██║╚██╗██║██╔══╝ ██║███╗██║ ██║ ██║██╔══██║██║╚██╔╝██║██╔══╝ ", |
| 128 | "██║ ╚████║███████╗╚███╔███╔╝ ╚██████╔╝██║ ██║██║ ╚═╝ ██║███████╗", |
| 129 | "╚═╝ ╚═══╝╚══════╝ ╚══╝╚══╝ ╚═════╝ ╚═╝ ╚═╝╚═╝ ╚═╝╚══════╝"}, |
| 130 | {"███████╗███████╗████████╗████████╗██╗███╗ ██╗ ██████╗ ███████╗", |
| 131 | "██╔════╝██╔════╝╚══██╔══╝╚══██╔══╝██║████╗ ██║██╔════╝ ██╔════╝", |
| 132 | "███████╗█████╗ ██║ ██║ ██║██╔██╗ ██║██║ ███╗███████╗", |
| 133 | "╚════██║██╔══╝ ██║ ██║ ██║██║╚██╗██║██║ ██║╚════██║", |
| 134 | "███████║███████╗ ██║ ██║ ██║██║ ╚████║╚██████╔╝███████║", |
| 135 | "╚══════╝╚══════╝ ╚═╝ ╚═╝ ╚═╝╚═╝ ╚═══╝ ╚═════╝ ╚══════╝"}, |
| 136 | {"███████╗██╗ ██╗██╗████████╗", "██╔════╝╚██╗██╔╝██║╚══██╔══╝", |
| 137 | "█████╗ ╚███╔╝ ██║ ██║ ", "██╔══╝ ██╔██╗ ██║ ██║ ", |
| 138 | "███████╗██╔╝ ██╗██║ ██║ ", "╚══════╝╚═╝ ╚═╝╚═╝ ╚═╝ "}}; |
| 139 | |
| 140 | const uint8_t height_line = 6; |
| 141 | const uint8_t height_space = 2; |
| 142 | |
| 143 | const uint8_t width_text[] = {68, 64, 28}; |
| 144 | |
| 145 | const uint8_t width_big = width_text[0] /*strlen(menu_string_big[0][0])*/; |
| 146 | const uint8_t height_big = |
| 147 | height_line * MAIN_MENU + height_space * (MAIN_MENU - 1); |
| 148 | |
| 149 | printf("\033[2J\033[H"); |
| 150 | |
| 151 | if (window_size.ws_row < height_small || window_size.ws_col < width_small) { |
| 152 | printf("Too small\n"); |
| 153 | return true; |
| 154 | } |
| 155 | |
| 156 | uint8_t i, j, k; |
| 157 | |
| 158 | if (window_size.ws_row >= height_big && window_size.ws_col >= width_big) { |
| 159 | |
| 160 | uint8_t vertical_buffer = (window_size.ws_row - height_big) >> 1; |
| 161 | |
| 162 | for (i = 0; i < vertical_buffer; i++) |
| 163 | printf("\n"); |
| 164 | |
| 165 | for (i = 0; i < MAIN_MENU; i++) { |
| 166 | |
| 167 | if (i == menu) |
| 168 | printf("\033[32m"); |
| 169 | |
| 170 | uint8_t horizontal_buffer = (window_size.ws_col - width_text[i]) >> 1; |
| 171 | |
| 172 | for (j = 0; j < height_line; j++) { |
| 173 | |
| 174 | for (k = 0; k < horizontal_buffer; k++) |
| 175 | printf(" "); |
| 176 | |
| 177 | printf("%s", menu_string_big[i][j]); |
| 178 | |
| 179 | if (j != height_line - 1) |
| 180 | printf("\n"); |
| 181 | } |
| 182 | |
| 183 | printf("\033[0m"); |
| 184 | |
| 185 | if (i != MAIN_MENU - 1) |
| 186 | printf("\n\n"); |
| 187 | } |
| 188 | |
| 189 | } else { |
| 190 | |
| 191 | uint8_t vertical_buffer = (window_size.ws_row - height_small) >> 1; |
| 192 | |
| 193 | for (i = 0; i < vertical_buffer; i++) |
| 194 | printf("\n"); |
| 195 | |
| 196 | for (i = 0; i < MAIN_MENU; i++) { |
| 197 | if (i == menu) |
| 198 | printf("\033[32m"); |
| 199 | |
| 200 | uint8_t horizontal_buffer = |
| 201 | (window_size.ws_col - strlen(menu_string[i])) >> 1; |
| 202 | |
| 203 | for (j = 0; j < horizontal_buffer; j++) |
| 204 | printf(" "); |
| 205 | |
| 206 | printf("%s\033[0m", menu_string[i]); |
| 207 | |
| 208 | if (i != MAIN_MENU - 1) |
| 209 | printf("\n\n"); |
| 210 | } |
| 211 | } |
| 212 | |
| 213 | fflush(stdout); |
| 214 | return false; |
| 215 | } |
| 216 | |
| 217 | |
| 218 | void draw_settings(settings selected_setting, speed game_speed, selected game_size) { |
| 219 | |
| 220 | char *setting_string[] = { |
| 221 | " HEIGHT ", |
| 222 | " WIDTH ", |
| 223 | " SPEED ", |
| 224 | " BACK " |
| 225 | }; |
| 226 | |
| 227 | char *speed_char[] = { |
| 228 | " VERY FAST ", |
| 229 | " FAST ", |
| 230 | " AVERAGE ", |
| 231 | " SLOW ", |
| 232 | " VERY SLOW " |
| 233 | }; |
| 234 | |
| 235 | uint8_t width = (uint8_t) strlen(setting_string[0]); |
| 236 | uint8_t width_setting = (uint8_t) strlen(speed_char[0]); |
| 237 | |
| 238 | uint8_t i, j; |
| 239 | |
| 240 | printf("\033[2J\033[H"); |
| 241 | |
| 242 | |
| 243 | for (i = 0; i < SETTINGS_MENU; i++) { |
| 244 | |
| 245 | printf("+"); |
| 246 | for (j = 0; j < width; j++) |
| 247 | printf("-"); |
| 248 | printf("+"); |
| 249 | |
| 250 | if (i != BACK_S) { |
| 251 | printf (" +"); |
| 252 | |
| 253 | for (j = 0; j < width_setting; j++) |
| 254 | printf("-"); |
| 255 | printf("+"); |
| 256 | } |
| 257 | |
| 258 | printf("\n|"); |
| 259 | |
| 260 | if (i == selected_setting) |
| 261 | printf("\033[32m"); |
| 262 | |
| 263 | printf("%s\033[0m", setting_string[i]); |
| 264 | |
| 265 | printf("|"); |
| 266 | |
| 267 | if (i != BACK_S) { |
| 268 | printf(" |"); |
| 269 | if (selected_setting == i) |
| 270 | printf("\033[32m"); |
| 271 | |
| 272 | switch (i) { |
| 273 | case SPEED_S: |
| 274 | printf("%s", speed_char[game_speed]); |
| 275 | break; |
| 276 | |
| 277 | case WIDTH_S: |
| 278 | case HEIGHT_S: |
| 279 | for (j = 0; j < (width_setting - 3) >> 1; j++) |
| 280 | printf(" "); |
| 281 | printf("%3d", (i == WIDTH_S) ? game_size.x : game_size.y); |
| 282 | for (j = 0; j < width_setting - ((width_setting - 3) >> 1) - 3; j++) |
| 283 | printf(" "); |
| 284 | |
| 285 | } |
| 286 | printf("\033[0m"); |
| 287 | printf("|"); |
| 288 | } |
| 289 | |
| 290 | printf("\n"); |
| 291 | |
| 292 | if (i != HEIGHT_S) { |
| 293 | |
| 294 | printf("+"); |
| 295 | for (j = 0; j < width; j++) |
| 296 | printf("-"); |
| 297 | printf("+"); |
| 298 | |
| 299 | if (i != BACK_S) { |
| 300 | printf (" +"); |
| 301 | |
| 302 | for (j = 0; j < width_setting; j++) |
| 303 | printf("-"); |
| 304 | printf("+"); |
| 305 | } |
| 306 | |
| 307 | if (i < SETTINGS_MENU - 1) |
| 308 | printf("\n"); |
| 309 | } |
| 310 | } |
| 311 | fflush(stdout); |
| 312 | } |
| 313 | |
| 314 | bool draw_board( |
| 315 | selected game_size, |
| 316 | board_state **board, |
| 317 | struct winsize window_size, |
| 318 | bool redraw, bool paused, |
| 319 | uint16_t score |
| 320 | ) { |
| 321 | |
| 322 | uint8_t i, j; |
| 323 | |
| 324 | uint8_t actual_height = game_size.y + 2 + 2; |
| 325 | uint8_t actual_width = game_size.x * 2 + 1 + 2; |
| 326 | |
| 327 | if (actual_width > window_size.ws_col || actual_height > window_size.ws_row) { |
| 328 | |
| 329 | printf("\033[2J\033[HToo small\n"); |
| 330 | printf("Min width: %i & Min height: %i\n", actual_height, actual_width); |
| 331 | |
| 332 | return true; |
| 333 | } |
| 334 | |
| 335 | uint8_t vertical_buffer = (window_size.ws_row - actual_height) >> 1; |
| 336 | uint8_t horizontal_buffer = (window_size.ws_col - actual_width) >> 1; |
| 337 | |
| 338 | if (redraw) { |
| 339 | printf("\033[2J\033[H"); |
| 340 | for (i = 0; i < vertical_buffer; i++) |
| 341 | printf("\n"); |
| 342 | } else { |
| 343 | for (i = 0; i < actual_height - 1; i++) |
| 344 | printf("\033[%c", UP_CODE); |
| 345 | printf("\r"); |
| 346 | } |
| 347 | |
| 348 | for (i = 0; i < ((actual_width - 9) >> 1) + horizontal_buffer; i++) |
| 349 | printf(" "); |
| 350 | printf("╭───────╮\n"); |
| 351 | for (i = 0; i < ((actual_width - 9) >> 1) + horizontal_buffer; i++) |
| 352 | printf(" "); |
| 353 | printf("│ \033[32m%05d\033[0m │\n", score); |
| 354 | |
| 355 | for (i = 0; i < horizontal_buffer; i++) |
| 356 | printf(" "); |
| 357 | printf("╭"); |
| 358 | for (i = 0; i < game_size.x; i++) |
| 359 | printf("──"); |
| 360 | printf("─╮"); |
| 361 | printf("\r"); |
| 362 | for (i = 0; i < ((actual_width - 9) >> 1) + horizontal_buffer; i++) |
| 363 | printf("\033[%c", RIGHT_CODE); |
| 364 | printf("┴───────┴\n"); |
| 365 | |
| 366 | |
| 367 | |
| 368 | for (i = 0; i < game_size.y; i++) { |
| 369 | |
| 370 | for (j = 0; j < horizontal_buffer; j++) |
| 371 | printf(" "); |
| 372 | |
| 373 | printf("│"); |
| 374 | |
| 375 | for (j = 0; j < game_size.x; j++) |
| 376 | printf("%s", give_state(board[i][j])); |
| 377 | |
| 378 | printf("%s", give_state(board[i][0])); |
| 379 | |
| 380 | printf("\033[%c│\n", LEFT_CODE); |
| 381 | } |
| 382 | |
| 383 | for (i = 0; i < horizontal_buffer; i++) |
| 384 | printf(" "); |
| 385 | printf("╰"); |
| 386 | for (i = 0; i < game_size.x; i++) |
| 387 | printf("──"); |
| 388 | printf("─╯"); |
| 389 | |
| 390 | if (paused) |
| 391 | draw_pause(window_size, actual_width, actual_height); |
| 392 | |
| 393 | fflush(stdout); |
| 394 | |
| 395 | return false; |
| 396 | } |
| 397 | |
| 398 | void draw_pause(struct winsize window_size, uint8_t field_width, |
| 399 | uint8_t field_height) { |
| 400 | |
| 401 | const uint8_t height = 5; |
| 402 | const uint8_t width = 14; |
| 403 | |
| 404 | const char *pause_menu[] = { |
| 405 | "+------------+", |
| 406 | "| |", |
| 407 | "| PAUSED |", |
| 408 | "| |", |
| 409 | "+------------+" |
| 410 | }; |
| 411 | |
| 412 | const uint8_t going_up = (field_height + height) >> 1; |
| 413 | const uint8_t going_right = (field_width - width) >> 1; |
| 414 | |
| 415 | const uint8_t horizontal_buffer = (window_size.ws_col - field_width) >> 1; |
| 416 | |
| 417 | uint8_t i, j; |
| 418 | |
| 419 | for (i = 0; i < going_up; i++) |
| 420 | printf("\033[%c", UP_CODE); |
| 421 | printf("\r"); |
| 422 | |
| 423 | for (i = 0; i < height; i++) { |
| 424 | for (j = 0; j < horizontal_buffer; j++) |
| 425 | printf("\033[%c", RIGHT_CODE); |
| 426 | for (j = 0; j < going_right; j++) |
| 427 | printf("\033[%c", RIGHT_CODE); |
| 428 | |
| 429 | printf("\033[37m%s\033[0m\033[%c\r", pause_menu[i], DOWN_CODE); |
| 430 | } |
| 431 | |
| 432 | for (i = 0; i < going_up - height; i++) |
| 433 | printf("\033[%c", DOWN_CODE); |
| 434 | printf("\r"); |
| 435 | |
| 436 | fflush(stdout); |
| 437 | } |
| 438 | |
| 439 | char *give_state(board_state square) { |
| 440 | |
| 441 | switch (square) { |
| 442 | case FRUIT: |
| 443 | return "\033[32m O\033[0m"; |
| 444 | break; |
| 445 | case HEAD_1: |
| 446 | return "\033[33m═\033[31mX\033[0m"; |
| 447 | break; |
| 448 | case HEAD_2: |
| 449 | return "\033[31m\33[CX\033[0m"; |
| 450 | break; |
| 451 | case VERTICAL: |
| 452 | return "\033[33m ║\033[0m"; |
| 453 | break; |
| 454 | case HORIZONTAL: |
| 455 | return "\033[33m══\033[0m"; |
| 456 | break; |
| 457 | case TOP_RIGHT: |
| 458 | return "\033[33m ╚\033[0m"; |
| 459 | break; |
| 460 | case TOP_LEFT: |
| 461 | return "\033[33m═╝\033[0m"; |
| 462 | break; |
| 463 | case BOTTOM_RIGHT: |
| 464 | return "\033[33m ╔\033[0m"; |
| 465 | break; |
| 466 | case BOTTOM_LEFT: |
| 467 | return "\033[33m═╗\033[0m"; |
| 468 | break; |
| 469 | default: |
| 470 | return " ·"; |
| 471 | break; |
| 472 | } |
| 473 | } |
| 474 | |
| 475 |