From 73e7bf73bbd68fbeac06ecdd77cc356c5365bb14 Mon Sep 17 00:00:00 2001 From: Ben Harris Date: Thu, 15 Jun 2023 21:53:56 +0100 Subject: [PATCH] Distinguish MOVE_UNUSED from MOVE_NO_EFFECT in Fifteen --- fifteen.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/fifteen.c b/fifteen.c index a454a13..2f10122 100644 --- a/fifteen.c +++ b/fifteen.c @@ -761,7 +761,7 @@ static char *interpret_move(const game_state *state, game_ui *ui, nx = FROMCOORD(x); ny = FROMCOORD(y); if (nx < 0 || nx >= state->w || ny < 0 || ny >= state->h) - return NULL; /* out of bounds */ + return MOVE_UNUSED; /* out of bounds */ } else if (IS_CURSOR_MOVE(button)) { button = flip_cursor(button); /* the default */ if (ui->invert_cursor) @@ -769,9 +769,9 @@ static char *interpret_move(const game_state *state, game_ui *ui, move_cursor(button, &nx, &ny, state->w, state->h, false); } else if ((button == 'h' || button == 'H') && !state->completed) { if (!compute_hint(state, &nx, &ny)) - return NULL; /* shouldn't happen, since ^^we^^checked^^ */ + return MOVE_NO_EFFECT;/* shouldn't happen, since ^^we^^checked^^ */ } else - return NULL; /* no move */ + return MOVE_UNUSED; /* no move */ /* * Any click location should be equal to the gap location @@ -782,7 +782,7 @@ static char *interpret_move(const game_state *state, game_ui *ui, return dupstr(buf); } - return NULL; + return MOVE_NO_EFFECT; } static game_state *execute_move(const game_state *from, const char *move)