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#include <assert.h>
#include "util.h"
struct timespec timespec_diff(struct timespec a, struct timespec b)
{
bool over = (b.tv_nsec - a.tv_nsec) < 0;
struct timespec diff = {
.tv_sec = b.tv_sec - a.tv_sec - over,
.tv_nsec = b.tv_nsec - a.tv_nsec + over * 1000000000ul,
};
return diff;
}
bool timespec_greater(struct timespec a, struct timespec b)
{
return a.tv_sec > b.tv_sec
|| (a.tv_sec == b.tv_sec && a.tv_nsec > b.tv_nsec);
}
bool in_capsule(int px, int py, int x, int y, int w, int h)
{
assert(w >= h);
int radius = h / 2;
// Trivial case
if (w == h)
return in_circle(px, py, x + radius, y + radius, radius);
// General case
return in_circle(px, py, x + radius, y + radius, radius)
|| in_circle(px, py, x + w - radius, y + radius, radius)
|| in_rect(px, py, x + radius, y, w - 2 * radius, h);
}
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