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Patch by MagerValp to allow building on mac with make. Thanks !

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git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@902 416bcca6-2ee7-4201-b75f-2eb2f807beb1
This commit is contained in:
Adrien Destugues
2009-07-07 13:58:37 +00:00
parent 243b645383
commit 15a8c67db7
3 changed files with 57 additions and 9 deletions
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8
graph.c
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@@ -1367,20 +1367,24 @@ void Clamp_coordinates_regular_angle(short ax, short ay, short* bx, short* by)
dx = *bx-ax;
dy = *by-ay;
// No mouse move: no need to clamp anything
if (dx==0 || dy == 0) return;
// On est en lockx et de toutes façons le X n'a pas bougé, on sort tout
// de suite pour éviter une méchante division par 0
angle = atan2(dx, dy);
// Horizontal < 15/16
if (angle < M_PI*(-15.0/16.0) || angle > M_PI*(15.0/16.0))
angle = M_PI*(16.0/16.0);
// 15/16 < Iso < 13/16
else if (angle < M_PI*(-13.0/16.0))
angle = -2.677945045;
// 13/16 < 45deg (3pi/4) < 11/16
else if (angle < M_PI*(-11.0/16.0))
angle = M_PI*(-12.0/16.0);
// 11/16 < "vertical iso" < 9/19
else if (angle < M_PI*(-9.0/16.0))
angle = -2.034443936;
// 9/16 < vertical < 7/16
else if (angle < M_PI*(-7.0/16.0))
angle = M_PI*(-8.0/16.0);
else if (angle < M_PI*(-5.0/16.0))