// TODO: add pathfinding algorithm so it avoids environmental obstacles
// Attempt to move this animal towards the given position.
// If the animal cannot successfully move, return false.
public bool MoveToPosition(Vector3 targetPosition, float speed)
{
_behaviorStatus = AnimalBehaviorStatus.MOVING;
Vector3 currentPosition = transform.position;
Vector3 targetDirection = targetPosition - currentPosition;
float collisionRadius = Stats.CollisionRadius;
Collider[] colliders = Physics.OverlapSphere(currentPosition, collisionRadius, Global.AnimalLayerMask);
if (colliders.Length > 1)
{
targetDirection = Vector3.zero;
for (int i = 0; i < colliders.Length; i++)
{
GameObject temporaryObject = colliders[i].gameObject;
if (temporaryObject == gameObject || temporaryObject == _targetObject)
{
continue;
}
Animal animal = temporaryObject.GetComponent <Animal>();
if (CanEatAnimal(animal))
{
continue;
}
Vector3 direction = colliders[i].transform.position - currentPosition;
float distance = direction.magnitude;
targetDirection -= (distance - collisionRadius) / collisionRadius * direction;
}
}
RotateTowardsDirection(targetDirection);
CurrentSpeed = speed;
Vector3 desiredPosition = currentPosition + (_currentSpeed * Time.deltaTime * _direction);
if (!global.GetGround().IsValidPosition(desiredPosition))
{
return(false);
}
transform.position = desiredPosition;
return(true);
}
public bool EatTargetFood()
{
_behaviorStatus = AnimalBehaviorStatus.EATING;
CurrentSpeed = 0;
if (_targetFood == null)
{
return(false);
}
_eatTimer += Time.deltaTime;
if (_eatTimer > _targetFood.PortionConsumeRate)
{
_eatTimer = 0.0f;
_food = Mathf.Min(_food + _targetFood.GetPortion(), Stats.MaxFood);
}
return(true);
}
// TODO: implement smarter running away behavior
public void RunFromTargetAnimal()
{
_behaviorStatus = AnimalBehaviorStatus.MOVING;
Vector3 targetDirection = transform.position - _targetAnimal.transform.position;
Vector3 currentPosition = transform.position;
RotateTowardsDirection(targetDirection);
CurrentSpeed = Mathf.SmoothStep(_currentSpeed, Stats.MaxSpeed, Stats.MaxSpeed * Time.deltaTime);
Vector3 desiredPosition = currentPosition + (_currentSpeed * Time.deltaTime * _direction);
if (global.GetGround().IsValidPosition(desiredPosition))
{
transform.position = desiredPosition;
}
}
