public static Node UpdateForwardMotion() =>
Node.Inject((Resource <Resources.Time> .Read time) =>
Node.System <Phases.Run> .RunEach((ref ForwardMotion motion, ref Rotation rotation, ref Velocity velocity) =>
{
var x = Math.Cos(rotation.Angle);
var y = Math.Sin(rotation.Angle);
velocity.X += x * motion.Speed * time.Value.Delta;
velocity.Y += y * motion.Speed * time.Value.Delta;
}));
public static Node UpdateGame() =>
Node.Inject((Components <Components.Controller> .Read controllers, Emitter <Messages.DoQuit> doQuit) =>
Node.System <Phases.Run> .Run(() =>
{
if (controllers.Has())
{
return;
}
doQuit.Emit();
}));
public static Node UpdateDeath() =>
Node.Inject((AllEntities entities, Emitter <Messages.OnKill> onKill) =>
Node.System <Phases.Run> .RunEach((Entity entity, ref Health health) =>
{
if (health.Current <= 0)
{
onKill.Emit(new Messages.OnKill {
Entity = entity
});
entities.Destroy(entity);
}
}));
public static Node UpdateLifetime() =>
Node.Inject((Resource <Resources.Time> time, Emitter <Messages.OnKill> onKill) =>
Node.System <Phases.Run> .RunEach((Entity entity, ref Lifetime lifetime) =>
{
lifetime.Current += time.Value.Delta;
if (lifetime.Current >= lifetime.Duration)
{
// BUG: destroy entity?
onKill.Emit(new Messages.OnKill {
Entity = entity
});
}
}));
public static Node InitializeGame() =>
Node.Inject((AllEntities entities, AllComponents components) =>
Node.System <Phases.Initialize> .Run(() => entities.Player(components)));
