static {
Core.update.forEach(
dt -> {
Iterator<Particle> it = ALL.iterator();
while (it.hasNext()) {
Particle p = it.next();
p.vel = p.vel.add(p.gra.multiply(dt));
p.pos = p.pos.add(p.vel.multiply(dt));
p.lifeTime -= dt;
if (p.lifeTime < 0 || CubeMap.isSolid(p.pos)) {
it.remove();
}
}
});
Sprite s = new Sprite("ball");
Core.render.onEvent(
() -> {
ALL.forEach(
p -> {
s.scale = new Vec2(p.size);
s.color = p.color;
Vec3 towardsSprite = p.pos.subtract(Window3D.pos);
s.draw(
p.pos.subtract(towardsSprite.cross(Window3D.UP).withLength(-s.scale.x / 2)),
-towardsSprite.direction2() + Math.PI / 2,
towardsSprite.direction() + Math.PI / 2);
});
});
}
