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Introduce an environment variable setting (SLANT_SWAP_BUTTONS=yes)

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to reverse the effect of the mouse buttons. Gareth has been
complaining about this for days: apparently he finds precisely the
opposite control system intuitive to me.

This is a horrendous hack, and pushes me one step closer to losing
my temper and designing a proper preferences architecture.

[originally from svn r6168]
This commit is contained in:
Simon Tatham
2005-08-06 10:33:46 +00:00
parent 8392232d57
commit 98a9f06a67
1 changed files with 23 additions and 0 deletions
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23
slant.c
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@ -1402,6 +1402,29 @@ static char *interpret_move(game_state *state, game_ui *ui, game_drawstate *ds,
int v;
char buf[80];
/*
* This is an utterly awful hack which I should really sort out
* by means of a proper configuration mechanism. One Slant
* player has observed that they prefer the mouse buttons to
* function exactly the opposite way round, so here's a
* mechanism for environment-based configuration. I cache the
* result in a global variable - yuck! - to avoid repeated
* lookups.
*/
{
static int swap_buttons = -1;
if (swap_buttons < 0) {
char *env = getenv("SLANT_SWAP_BUTTONS");
swap_buttons = (env && (env[0] == 'y' || env[0] == 'Y'));
}
if (swap_buttons) {
if (button == LEFT_BUTTON)
button = RIGHT_BUTTON;
else
button = LEFT_BUTTON;
}
}
x = FROMCOORD(x);
y = FROMCOORD(y);
if (x < 0 || y < 0 || x >= w || y >= h)