public override World Update(float secondsPassed, World world)
{
var speedStep = 5 * secondsPassed;
switch (_logic.State)
{
case State.Idle: return world;
case State.FindPlanet:
{
var planet = world.Wobs.Values.OfType<Planet>()
.MinBy(p => (float)p.Pos.DistanceSquared(_pose.Location));
if (planet == null || planet.Pos.DistanceSquared(_pose.Location) > 300 * 300)
return world.SetWob(SetLogic(Logic.Idle()));
return world.SetWob(SetLogic(Logic.GoToPlanet(planet.ID)));
}
case State.GoToPlanet:
{
var planet = world.GetWob<Planet>(_logic.PlanetID);
if (planet == null || planet.Pos.DistanceSquared(_pose.Location) < 70 * 70)
return world.SetWob(SetLogic(Logic.OrbitPlanet(_logic.PlanetID)));
var toPlanet = (planet.Pos - _pose.Location).ToNormalized();
return world.SetWob(SetPose(new Pose(_pose.Location + toPlanet * speedStep, toPlanet, _pose.Up)));
}
case State.OrbitPlanet:
{
var planet = world.GetWob<Planet>(_logic.PlanetID);
if (planet == null) return world.SetWob(SetLogic(Logic.Idle()));
var orbitLocation = _pose.Location - planet.Pos;
var altitude = orbitLocation.Length;
var orbitAngle = speedStep / altitude;
var move = Quaternion.FromAngleAxis(orbitAngle, _pose.Up);
var location = planet.Pos + move * orbitLocation;
var gatheringSeconds = _logic.GatheringSeconds + secondsPassed;
var gatheringInterval = 5;
var gatheredAmount = (int)(gatheringSeconds / gatheringInterval);
if (gatheredAmount > 0)
{
var gatheredStack = new Items.ItemStack(Guid.NewGuid(), Items.ItemType.MiningDroid, gatheredAmount);
world = world.SetWob(world.GetWob<Inventory>(_inventoryID).Add(gatheredStack));
}
gatheringSeconds -= gatheredAmount * gatheringInterval;
return world.SetWob(
SetPose(new Pose(location, move * _pose.Front, move * _pose.Up))
.SetLogic(_logic.SetGatheringSeconds(gatheringSeconds)));
}
default: throw new NotImplementedException();
}
}