private void Chase(Vector2 position, ref Creature prey, ref float orientation, float turnSpeed)
{
if (prey == null || prey.state == 4)
{
this.state = 0;
return;
}
Vector2 preyPosition = prey.position;
// we may want to include a flocking algorithm so multiple predators dont get stuck behind the same prey
/*
if (prey.Predator != null)
{
Vector2 otherPredPosition = position - prey.Predator.position;
orientation = TurnToFace(position, otherPredPosition, orientation, .5f * turnSpeed);
}
*/
orientation = TurnToFace(position, preyPosition, orientation, 0.75f * turnSpeed);
}
private void Evade(Vector2 position, ref Creature pred, ref float orientation, float turnSpeed)
{
if (pred == null || pred.state == 4)
{
// it died
this.state = 0;
return;
}
Vector2 predPosition = pred.position; // bug here, because they can die now
Vector2 seekPosition = 2 * position - predPosition; // optimal direction to run away (not very exciting)
float distanceToGoal = Vector2.Distance(position, goalPosition);
float distanceToPred = Vector2.Distance(position, pred.position);
if (distanceToGoal < 200)
{
// assign a new random goal position
randomGoal(mapWidth, mapHeight);
}
if (distanceToPred < 75)
{
// high priority choose optimal, can't have full turn speed
orientation = TurnToFace(position, seekPosition, orientation, 3f * turnSpeed);
}
else
{
// choose random point to run to
orientation = TurnToFace(position, goalPosition, orientation, 1.2f * turnSpeed);
}
}
public void reproduce(Creature parent)
{
creatures.Add(new Creature((short)parent.Position.X,(short)parent.Position.Y, stats, random,this));
}
