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cube.c: Prohibit unsolvable single row/column game

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For cube games, the minimum for any dimension should be 2, as there is
no net of the cube that is only one row/column. The previous logic
would permit a 1x7 game (for example) that could never be solved.
This commit is contained in:
Michael Quevillon
2018-09-13 00:19:32 -04:00
committed by Simon Tatham
parent 1db5961b8b
commit 55be8e50db
1 changed files with 2 additions and 2 deletions
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4
cube.c
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@ -543,8 +543,8 @@ static const char *validate_params(const game_params *params, int full)
return "Unrecognised solid type"; return "Unrecognised solid type";
if (solids[params->solid]->order == 4) { if (solids[params->solid]->order == 4) {
if (params->d1 <= 0 || params->d2 <= 0) if (params->d1 <= 1 || params->d2 <= 1)
return "Both grid dimensions must be greater than zero"; return "Both grid dimensions must be greater than one";
} else { } else {
if (params->d1 <= 0 && params->d2 <= 0) if (params->d1 <= 0 && params->d2 <= 0)
return "At least one grid dimension must be greater than zero"; return "At least one grid dimension must be greater than zero";