public Herbavore(World world) :
base(world)
{
this.DoEat = (gameTime) =>
{
// Find suitable plantlife to consume
// This would of course be the closest plant (will add other qualifiers in future)
if (_target == null)
{
_target = (Plant)this.World.LivingThings.Where(l => l is Plant)
.OrderBy(l => Vector2.Distance(this.Position, l.Position)).FirstOrDefault();
if (_target != null)
{
this.MoveTo(_target.Position);
}
}
else if (Vector2.Distance(_target.Position, this.Position) <= 5f)
{
// Consume the plant for its energy
this.Energy += _target.Energy;
_target.Kill();
_target = null;
}
};
this.DoReproduce = (gameTime) =>
{
_lastReproduceTime += gameTime.ElapsedGameTime.TotalSeconds;
if (_lastReproduceTime >= REPRODUCE_COOLDOWN)
{
var newHerbavore = new Herbavore(this.World)
{
Name = this.Name,
Health = 100,
Energy = 100,
Speed = this.Speed,
MetabolicRate = this.MetabolicRate,
GrowthRate = this.GrowthRate,
Size = this.Size
};
newHerbavore.Position = new Vector2((float)(this.World.Random.NextDouble() * this.World.Size.X),
(float)(this.World.Random.NextDouble() * this.World.Size.Y));
newHerbavore.Color = this.Color;
world.LivingThings.Add(newHerbavore);
_lastReproduceTime = 0;
}
};
}
private void GenerateAnimals(int amount)
{
for (int i = 0; i < amount; i++)
{
var animal = new Herbavore(this)
{
Name = "Zebra",
Health = 100,
Energy = 100,
Speed = .2f,
MetabolicRate = 5f,
GrowthRate = .0f,
Size = new Vector2(10, 10)
};
animal.Position = new Vector2((float)(this.Random.NextDouble() * this.Size.X),
(float)(this.Random.NextDouble() * this.Size.Y));
animal.Color = new Color((int)((float)this.Random.NextDouble() * 255), (int)((float)this.Random.NextDouble() * 255), (int)((float)this.Random.NextDouble() * 255));
this.LivingThings.Add(animal);
}
}