diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/board.c | 10 | ||||
| -rw-r--r-- | src/board.h | 3 | ||||
| -rw-r--r-- | src/main.c | 12 |
3 files changed, 23 insertions, 2 deletions
diff --git a/src/board.c b/src/board.c new file mode 100644 index 0000000..bc5855f --- /dev/null +++ b/src/board.c @@ -0,0 +1,10 @@ +#include "board.h" + +BYTE notation_to_index(char file, int rank) { + return (rank - 1) * 8 + (file - 'a'); +} + +void index_to_notation(BYTE index, char notation[2]) { + notation[0] = (index & 0b0111) + 'a'; + notation[1] = (index >> 3) + '1'; +} diff --git a/src/board.h b/src/board.h index 052e104..f7e89f2 100644 --- a/src/board.h +++ b/src/board.h @@ -27,3 +27,6 @@ static const char* pieces[] = { "♛", "♕", "♚", "♔", }; + +void index_to_notation(BYTE index, char notation[2]); +BYTE notation_to_index(char file, int rank); @@ -1,9 +1,17 @@ #include "unittest.h" #include "board.h" +void test_notations() { + printf("%u\n", notation_to_index('e', 4)); + unit_test(notation_to_index('e', 4) == 28, "Notation e4 is index 28"); + + char notation[2] = "x0"; + index_to_notation(28, notation); + unit_test(notation[0] == 'e' && notation [1] == '4', "Index 28 is notation e4"); +} + int main() { - unit_test(2 * 2 == 4, "2 * 2 == 4"); - unit_test(2 * 2 == 5, "2 * 2 == 4"); + test_notations(); report(); return 0; |