private void updatePosition(Projectile projectile) {
double distance = projectile.getRadius() * Context.TICK_DELAY / projectile.getLifeTime();
double angle = projectile.getAngle() * Math.PI / 180;
double y = distance * Math.sin(angle);
double x = distance * Math.cos(angle);
projectile.setxStart(projectile.getxStart() + x);
projectile.setyStart(projectile.getyStart() + y);
}
synchronized void onProjectileLifecycle(
ConcurrentHashMap<Integer, Projectile[]> projectiles, Room room) {
Long now = System.currentTimeMillis();
for (Map.Entry<Integer, Projectile[]> entry : projectiles.entrySet()) {
for (Projectile projectile : entry.getValue()) {
projectile.setNow(System.currentTimeMillis());
if (projectile.getCreationTime() + projectile.getLifeTime() < now) {
projectiles.remove(entry.getKey());
continue;
}
if (!projectile.isInstant()) {
checkForImpacts(room, projectile, entry.getKey());
}
}
}
}