libphysics/event.c


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#include <vecmath.h>
#include <physics.h>
#include <stdlib.h>

#include "dat.h"

#define EVENT_POOL_SIZE (1 << 20)

static CollisionEvent event[EVENT_POOL_SIZE];
static int eventi, evente, events;

int
phxenqevent(CollisionEvent *ev)
{
	if(events == EVENT_POOL_SIZE)
		return 0;

	event[evente] = *ev;
	evente = (evente + 1) % EVENT_POOL_SIZE;
	events++;

	return 1;
}

int
phxdeqevent(CollisionEvent *ev)
{
	CollisionEvent *evv;
	if(events == 0)
		return 0;

	evv = event + eventi;
	eventi = (eventi + 1) % EVENT_POOL_SIZE;

	*ev = *evv;
	events--;
	return 1;
}

int
phxnextcollevent(CollisionEvent *ev)
{
	return phxdeqevent(ev);
}