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Mouse changes suggested by Norm Vine. Cursor always centres on mode

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changes, and wrap-around is smoother.
This commit is contained in:
david 2002-03-28 15:57:02 +00:00
parent 24a812c0b6
commit 62df2d1d53
1 changed files with 10 additions and 8 deletions
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18
src/Input/input.cxx
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@ -417,19 +417,19 @@ FGInput::doMouseMotion (int x, int y)
// Constrain the mouse if requested
if (mode.constrained) {
bool need_warp = false;
if (x < 0) {
x = xsize - 1;
if (x <= 0) {
x = xsize - 2;
need_warp = true;
} else if (x >= xsize) {
x = 0;
} else if (x >= (xsize-1)) {
x = 1;
need_warp = true;
}
if (y < 0) {
y = ysize - 1;
if (y <= 0) {
y = ysize - 2;
need_warp = true;
} else if (y >= ysize) {
y = 0;
} else if (y >= (ysize-1)) {
y = 1;
need_warp = true;
}
@ -765,6 +765,8 @@ FGInput::_update_mouse ()
m.current_mode = mode;
if (mode >= 0 && mode < m.nModes) {
glutSetCursor(m.modes[mode].cursor);
glutWarpPointer(fgGetInt("/sim/startup/xsize", 800) / 2,
fgGetInt("/sim/startup/ysize", 600) / 2);
} else {
SG_LOG(SG_INPUT, SG_DEBUG, "Mouse mode " << mode << " out of range");
glutSetCursor(GLUT_CURSOR_INHERIT);