//Mutates the Brain
public static Brain.DataInput MutateWeights(Brain.DataInput data, float mutationFactor)
{
data.LEFOw.LTHR += (float)((Program.game.rnd.NextDouble() * 2) - 1) * mutationFactor;
data.LEFOw.RTHR += (float)((Program.game.rnd.NextDouble() * 2) - 1) * mutationFactor;
data.LEFOw.MTHR += (float)((Program.game.rnd.NextDouble() * 2) - 1) * mutationFactor;
data.REFOw.LTHR += (float)((Program.game.rnd.NextDouble() * 2) - 1) * mutationFactor;
data.REFOw.RTHR += (float)((Program.game.rnd.NextDouble() * 2) - 1) * mutationFactor;
data.REFOw.MTHR += (float)((Program.game.rnd.NextDouble() * 2) - 1) * mutationFactor;
data.LEPOw.LTHR += (float)((Program.game.rnd.NextDouble() * 2) - 1) * mutationFactor;
data.LEPOw.RTHR += (float)((Program.game.rnd.NextDouble() * 2) - 1) * mutationFactor;
data.LEPOw.MTHR += (float)((Program.game.rnd.NextDouble() * 2) - 1) * mutationFactor;
data.REPOw.LTHR += (float)((Program.game.rnd.NextDouble() * 2) - 1) * mutationFactor;
data.REPOw.RTHR += (float)((Program.game.rnd.NextDouble() * 2) - 1) * mutationFactor;
data.REPOw.MTHR += (float)((Program.game.rnd.NextDouble() * 2) - 1) * mutationFactor;
data.HEALTHw.LTHR += (float)((Program.game.rnd.NextDouble() * 2) - 1) * mutationFactor;
data.HEALTHw.RTHR += (float)((Program.game.rnd.NextDouble() * 2) - 1) * mutationFactor;
data.HEALTHw.MTHR += (float)((Program.game.rnd.NextDouble() * 2) - 1) * mutationFactor;
data.CLOCKw.LTHR += (float)((Program.game.rnd.NextDouble() * 2) - 1) * mutationFactor;
data.CLOCKw.RTHR += (float)((Program.game.rnd.NextDouble() * 2) - 1) * mutationFactor;
data.CLOCKw.MTHR += (float)((Program.game.rnd.NextDouble() * 2) - 1) * mutationFactor;
return(data);
}
//Constructor
public Creature(Vector2 location, float rotation, Color color, Brain.DataInput weights = null, int size = 50)
{
this.Location = location;
this.Rotation = rotation;
this.Color = color;
this.Size = size;
this.Health = 1;
this.Brain = new Brain.Brain();
if (weights == null)
{
this.Weights = Brain.GenerateRandomWeights();
}
else
{
this.Weights = weights;
}
}
//Update loop, called by manager
public void Update(GameTime gameTime, Rectangle Bounds)
{
//Update Position and Rotation
this.Rotation = this.Rotation + (float)(this.TurningVelocity * gameTime.ElapsedGameTime.TotalMilliseconds * Program.game.simulationSpeed);
this.Location = new Vector2(
(float)(this.Location.X + Math.Cos(this.Rotation) * (this.Velocity * gameTime.ElapsedGameTime.TotalMilliseconds * Program.game.simulationSpeed)),
(float)(this.Location.Y + Math.Sin(this.Rotation) * (this.Velocity * gameTime.ElapsedGameTime.TotalMilliseconds * Program.game.simulationSpeed))
);
//Check for border collision
if (this.Location.Y <= 0)
{
this.Location.Y = Bounds.Height - 1;
}
if (this.Location.Y >= Bounds.Height)
{
this.Location.Y = 1;
}
if (this.Location.X <= 0)
{
this.Location.X = Bounds.Width - 1;
}
if (this.Location.X >= Bounds.Width)
{
this.Location.X = 1;
}
//Calculate Field of view data
Vector2 FOVcenterEnd = new Vector2((float)(Math.Cos(this.Rotation) * Managers.CreatureManager.LineDirectionLength) + this.Location.X, (float)(Math.Sin(this.Rotation) * Managers.CreatureManager.LineDirectionLength) + this.Location.Y);
Vector2 FOVrightEnd = new Vector2((float)(Math.Cos(this.Rotation + Managers.CreatureManager.eyeAngle) * Managers.CreatureManager.LineEyeLength) + this.Location.X, (float)(Math.Sin(this.Rotation + Managers.CreatureManager.eyeAngle) * Managers.CreatureManager.LineEyeLength) + this.Location.Y);
Vector2 FOVleftEnd = new Vector2((float)(Math.Cos(this.Rotation - Managers.CreatureManager.eyeAngle) * Managers.CreatureManager.LineEyeLength) + this.Location.X, (float)(Math.Sin(this.Rotation - Managers.CreatureManager.eyeAngle) * Managers.CreatureManager.LineEyeLength) + this.Location.Y);
//Check for food in field of view
int pointsInLE = 0;
int pointsInRE = 0;
foreach (Food food in Managers.FoodManager.foods)
{
if (PointInTriangle(food.Location, this.Location, FOVcenterEnd, FOVleftEnd))
{
pointsInLE++;
}
if (PointInTriangle(food.Location, this.Location, FOVcenterEnd, FOVrightEnd))
{
pointsInRE++;
}
}
if (pointsInLE > 1)
{
pointsInLE = 1;
}
if (pointsInLE < 0)
{
pointsInLE = 0;
}
if (pointsInRE > 1)
{
pointsInRE = 1;
}
if (pointsInRE < 0)
{
pointsInRE = 0;
}
//Check for poison in field of view
float poiPointsInLE = 0;
float poiPointsInRE = 0;
foreach (Poison poison in Managers.PoisonManager.poisons)
{
if (PointInTriangle(poison.Location, this.Location, FOVcenterEnd, FOVleftEnd))
{
poiPointsInLE++;
}
if (PointInTriangle(poison.Location, this.Location, FOVcenterEnd, FOVrightEnd))
{
poiPointsInRE++;
}
}
if (poiPointsInLE > 1)
{
poiPointsInLE = 1;
}
if (poiPointsInLE < 0)
{
poiPointsInLE = 0;
}
if (poiPointsInRE > 1)
{
poiPointsInRE = 1;
}
if (poiPointsInRE < 0)
{
poiPointsInRE = 0;
}
//Process data
Brain.DataInput dataToProcess = new Brain.DataInput()
{
LEFO = pointsInLE, REFO = pointsInRE, LEPO = poiPointsInLE, REPO = poiPointsInRE,
HEALTH = this.Health, CLOCK = this.Clock,
LEFOw = this.Weights.LEFOw, REFOw = this.Weights.REFOw, LEPOw = this.Weights.LEPOw, REPOw = this.Weights.REPOw,
HEALTHw = this.Weights.HEALTHw, CLOCKw = this.Weights.CLOCKw
};
Brain.DataOutput thrusts = Brain.ProcessData(dataToProcess);
//Move
this.Push(PushDirection.Middle, thrusts.MTHR);
this.Push(PushDirection.TurnLeft, thrusts.LTHR / 50);
this.Push(PushDirection.TurnRight, thrusts.RTHR / 50);
//Update attributes
this.Velocity *= frictionFactor;
this.TurningVelocity *= frictionFactorTurning;
this.Health -= (float)0.0008;
this.Color.A = Convert.ToByte(255 - (255 - (this.Health * 255)));
this.Clock = (float)(Math.Sin(gameTime.TotalGameTime.TotalMilliseconds * Program.game.simulationSpeed / 50) + 1) / 2;
this.Age += (1 * Program.game.simulationSpeed);
}
