| 1 | /* ncurses-minesweeper Copyright (c) 2020 Joshua 'joshuas3' Stockin |
| 2 | * <https://joshstock.in> |
| 3 | * <https://github.com/JoshuaS3/ncurses-minesweeper> |
| 4 | * |
| 5 | * This software is licensed and distributed under the terms of the MIT License. |
| 6 | * See the MIT License in the LICENSE file of this project's root folder. |
| 7 | * |
| 8 | * This comment block and its contents, including this disclaimer, MUST be |
| 9 | * preserved in all copies or distributions of this software's source. |
| 10 | */ |
| 11 |
|
| 12 | #include <ncurses.h> |
| 13 |
|
| 14 | #include "../state.h" |
| 15 |
|
| 16 | void constrain_up(game_board *board) { |
| 17 | if (board->current_cell >= board->width) |
| 18 | board->current_cell -= board->width; |
| 19 | else |
| 20 | beep(); |
| 21 | } |
| 22 |
|
| 23 | void constrain_down(game_board *board) { |
| 24 | if (board->current_cell < board->width * (board->height - 1)) |
| 25 | board->current_cell += board->width; |
| 26 | else |
| 27 | beep(); |
| 28 | } |
| 29 |
|
| 30 | void constrain_left(game_board *board) { |
| 31 | if (board->current_cell % board->width > 0) |
| 32 | board->current_cell--; |
| 33 | else |
| 34 | beep(); |
| 35 | } |
| 36 |
|
| 37 | void constrain_right(game_board *board) { |
| 38 | if ((board->current_cell + 1) % board->width > 0) |
| 39 | board->current_cell++; |
| 40 | else |
| 41 | beep(); |
| 42 | } |
| 43 |
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