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Comparison against 0 is ... suboptimal for floats (imprecision). Compare against Epsilon instead. 

git-svn-id: svn+ssh://svn.gna.org/svn/warzone/trunk@6103 4a71c877-e1ca-e34f-864e-861f7616d084
master
Dennis Schridde 2008-10-03 16:21:37 +00:00
parent 4a9c00e469
commit 00c85bc2c8
1 changed files with 5 additions and 3 deletions
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8
src/move.c
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@ -25,6 +25,8 @@
*/
#include "lib/framework/frame.h"
#include <float.h>
#include "lib/framework/trig.h"
#include "lib/framework/math-help.h"
#include "lib/gamelib/gtime.h"
@ -1672,18 +1674,18 @@ static Vector2f moveGetDirection(DROID *psDroid)
float nextMagnitude = Vector2f_ScalarP(nextDelta, nextDelta);
// We are already there
if (magnitude == 0.0f && nextMagnitude == 0.0f)
if (magnitude < FLT_EPSILON && nextMagnitude < FLT_EPSILON)
{
Vector2f zero = {0.0f, 0.0f};
return zero; // We are practically standing on our only waypoint
}
// We are passing the current waypoint, so directly head over to the next
else if (magnitude == 0.0f)
else if (magnitude < FLT_EPSILON)
{
dest = Vector2f_Normalise(nextDelta);
}
// We are passing the next waypoint, so for now don't interpolate it
else if (nextMagnitude == 0.0f)
else if (nextMagnitude < FLT_EPSILON)
{
dest = Vector2f_Normalise(delta);
}