public static BTStatus LandAnimalFindFood(Animal agent)
{
// let animals wander to weird places while hungry, but if they are starving go home
if (agent.Hunger > StarvingThreshold && MovementBehaviors.ShouldReturnHome(agent))
{
return(MovementBehaviors.WanderHome(agent));
}
else
{
return(MovementBehaviors.Wander(agent));
}
}
public override BTStatus Do(Animal agent)
{
// let animals wander to weird places while hungry, but if they are starving go home
if (agent.Hunger > StarvingThreshold && MovementBehaviors.ShouldReturnHome(agent).Test)
{
var status = MovementBehaviors.WanderHome.Do(agent);
return(this.Status(status, agent, "Starving, returning home."));
}
else
{
var status = MovementBehaviors.Wander.Do(agent);
return(this.Status(status, agent, "Wandering looking for food"));
}
}
public void GetMovementBehavior(MovementBehaviors behavior)
{
movementBehavior = behavior;
}
static Otter()
{
const float MinIdleTime = 3f;
const float MaxIdleTime = 10f;
const float MinFloatIdleTime = 10f;
const float MaxFloatIdleTime = 20f;
const float ChanceToIdle = 0.3f;
const float ChanceToSurface = 0.3f;
const float ChanceToDive = 0.1f;
const float TimeToStopFloating = 2f;
const float DiveAlertness = 200;
const float MaxHeightAboveSeaLevel = 5;
OtterLandTree =
BT.If(x => !World.World.IsUnderwater(x.Position.WorldPosition3i),
BT.Selector(
MovementBehaviors.AmphibiousFlee,
BT.If(x => RandomUtil.Chance(ChanceToIdle),
Brain.PlayAnimation(AnimalAnimationState.Idle, _ => RandomUtil.Range(MinIdleTime, MaxIdleTime))),
BT.If(x => x.Position.y > WorldLayerManager.ClimateSim.State.SeaLevel + MaxHeightAboveSeaLevel,
x => MovementBehaviors.RouteToWater(x, x.Species.WanderingSpeed, AnimalAnimationState.Wander)),
BT.If(MovementBehaviors.ShouldReturnHome,
MovementBehaviors.AmphibiousWanderHome),
MovementBehaviors.AmphibiousWander));
OtterFloatingTree =
BT.If(x => x.floating,
BT.Selector(
BT.If(x => x.AnimationState == AnimalAnimationState.FloatingIdle,
// floating otters need time to flip back over before doing other things
Brain.PlayFixedTimeAnimation(AnimalAnimationState.SurfaceSwimming, TimeToStopFloating)),
BT.If(x => x.Alertness > DiveAlertness,
// dive when scared
BT.Success(x => x.floating = false),
BT.Selector(MovementBehaviors.SwimFlee, MovementBehaviors.SwimWander)),
MovementBehaviors.AmphibiousFlee,
BT.If(x => RandomUtil.Chance(ChanceToDive),
BT.Success(x => x.floating = false),
MovementBehaviors.SwimWander),
BT.If(MovementBehaviors.ShouldReturnHome,
MovementBehaviors.AmphibiousWanderHome),
BT.If(x => RandomUtil.Chance(ChanceToIdle),
Brain.PlayAnimation(AnimalAnimationState.FloatingIdle, _ => RandomUtil.Range(MinFloatIdleTime, MaxFloatIdleTime))),
MovementBehaviors.AmphibiousWander));
OtterDivingTree =
BT.Selector(
MovementBehaviors.SwimFlee,
BT.If(MovementBehaviors.ShouldReturnHome,
BT.Success(x => x.floating = true),
MovementBehaviors.SwimWanderHomeSurface),
BT.If(x => x.Alertness < DiveAlertness && RandomUtil.Chance(ChanceToSurface),
BT.Success(x => x.floating = true),
MovementBehaviors.SwimWanderSurface),
BT.If(x => RandomUtil.Chance(1 - ChanceToIdle),
MovementBehaviors.SwimWander),
Brain.PlayAnimation(AnimalAnimationState.SwimmingIdle, _ => RandomUtil.Range(MinIdleTime, MaxIdleTime)));
OtterTreeRoot =
BT.Selector(
OtterLandTree,
// TODO: dive for food & eat on surface (need tummy eating animation)
OtterFloatingTree,
OtterDivingTree
);
Brain <Otter> .SharedBehavior = OtterTreeRoot;
}
