private bool ShouldTargetHuman <T>(Human otherHuman) where T : IResource
{
if (otherHuman.Dead)
{
return(false);
}
var isFoodSource = typeof(T) == typeof(IFoodSource);
var aggression = Aggression.Get(_team, otherHuman._team);
if (aggression == Aggression.Level.Neutral)
{
// Only if I'm starving
return(isFoodSource && Hunger <= 5);
}
if (aggression == Aggression.Level.Aggressive)
{
// Only if I'm hungry
return(isFoodSource && Hunger <= MAX_HUNGER / 2);
}
// If we're friendly we'll share, if we're murderous we'll kill
return(true);
}
public void TakeFood(Human taker)
{
if (Aggression.Get(_team, taker._team) == Aggression.Level.Friendly)
{
// Sharing is caring
if (HasFood)
{
Food--;
taker.Feed(1);
}
}
else
{
// I have been killed
Dead = true;
SetAnimationState(AnimationState.Dying);
taker.Feed(Food);
Food = 0;
// I shall be avenged
Aggression.Adjust(_team, taker._team, 15);
}
}
public override void _Process(float delta)
{
if (Dead)
{
return;
}
Thirst -= delta;
Hunger -= delta;
if (Thirst < MAX_THIRST / 2)
{
var waterSource = _targetResource as IWaterSource;
if (waterSource == null || !waterSource.HasWater)
{
// Seek water
var waterSources = new List <IWaterSource>();
Group.CallGroup(GetTree(), Group.WaterSources, source =>
{
if (source.HasWater)
{
waterSources.Add(source);
}
});
TargetClosestResource(waterSources);
waterSource = _targetResource as IWaterSource;
}
if (waterSource != null && waterSource.HasWater && Position.DistanceSquaredTo(_targetPosition) <= INTERACTION_RADIUS_SQUARED)
{
waterSource.TakeWater(this);
_targetResource = null;
}
}
else if (Hunger < MAX_HUNGER / 2)
{
if (Food > 0)
{
// If we have food, eat
Eat();
}
else
{
// Otherwise, seek food
var foodSource = _targetResource as IFoodSource;
if (foodSource == null || !foodSource.HasFood)
{
var foodSources = new List <IFoodSource>();
Group.CallGroup(GetTree(), Group.FoodSources, source =>
{
if (!source.HasFood)
{
return;
}
var humanSource = source as Human;
if (humanSource != null)
{
if (!ShouldTargetHuman <IFoodSource>(humanSource))
{
return;
}
}
foodSources.Add(source);
});
TargetClosestResource(foodSources);
foodSource = _targetResource as IFoodSource;
}
if (foodSource != null && foodSource.HasFood && Position.DistanceSquaredTo(_targetPosition) <= INTERACTION_RADIUS_SQUARED)
{
foodSource.TakeFood(this);
_targetResource = null;
}
}
}
else
{
// Not thirsty and not hungry. Anyone we wanna murder nearby?
var murderTarget = _targetResource as Human;
if (murderTarget == null || murderTarget.Dead)
{
var peopleIWantToKill = new List <Human>();
Group.Humans.Call(GetTree(), human =>
{
if (human.Dead || Position.DistanceSquaredTo(human.Position) > RAGE_RADIUS_SQUARED)
{
return;
}
var aggression = Aggression.Get(_team, human._team);
if (aggression == Aggression.Level.Murderous)
{
peopleIWantToKill.Add(human);
}
});
TargetClosestResource(peopleIWantToKill);
}
murderTarget = _targetResource as Human;
if (murderTarget != null && !murderTarget.Dead && Position.DistanceSquaredTo(murderTarget.Position) <= RAGE_RADIUS_SQUARED)
{
// Humans can move, so update the target position regularly
_targetPosition = murderTarget.Position;
if (Position.DistanceSquaredTo(_targetPosition) <= INTERACTION_RADIUS_SQUARED)
{
// This will kill them and take all their stuff. Nice!
murderTarget.TakeFood(this);
_targetResource = null;
}
}
}
if (_targetResource != null)
{
SetAnimationState(AnimationState.Walking);
var velocity = (_targetPosition - Position).Normalized() * SPEED * delta;
Position += velocity;
}
else
{
SetAnimationState(AnimationState.Standing);
}
if (Thirst <= 0 || Hunger <= 0)
{
Dead = true;
SetAnimationState(AnimationState.Dying);
}
}
