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Refactoring from James H: the highlight and lowlight colour setup

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common to Fifteen, Sixteen, Twiddle and Pegs is now a utility
function in misc.c.

[originally from svn r6076]
This commit is contained in:
Simon Tatham
2005-07-06 18:27:40 +00:00
parent d4001cbc0d
commit 753339737e
6 changed files with 37 additions and 76 deletions
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27
misc.c
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@ -169,4 +169,31 @@ unsigned char *hex2bin(const char *in, int outlen)
return ret;
}
void game_mkhighlight(frontend *fe, float *ret,
int background, int highlight, int lowlight)
{
float max;
int i;
frontend_default_colour(fe, &ret[background * 3]);
/*
* Drop the background colour so that the highlight is
* noticeably brighter than it while still being under 1.
*/
max = ret[background*3];
for (i = 1; i < 3; i++)
if (ret[background*3+i] > max)
max = ret[background*3+i];
if (max * 1.2F > 1.0F) {
for (i = 0; i < 3; i++)
ret[background*3+i] /= (max * 1.2F);
}
for (i = 0; i < 3; i++) {
ret[highlight * 3 + i] = ret[background * 3 + i] * 1.2F;
ret[lowlight * 3 + i] = ret[background * 3 + i] * 0.8F;
}
}
/* vim: set shiftwidth=4 tabstop=8: */