public Vector2 Flee(Agent a, Vector2 Target)
{
float PanicDistance = 200;
if ((a.Location - Target).Length() > PanicDistance)
{
return a.steeringForce;
}
Vector2 DesiredVel = (Vector2.Normalize(a.Location - Target) * a.maxSpeed);
return (DesiredVel - a.velocity) * 6;
}
public Vector2 Seek(Agent a, Vector2 Target)
{
if(a.Location.X > Target.X - 5 && a.Location.X < Target.X + 5 &&
a.Location.Y > Target.Y + 5 && a.Location.Y < Target.Y - 5)
{
return a.steeringForce;
}
Vector2 DesiredVelocity = (Vector2.Normalize(Target - a.Location) * a.maxSpeed);
return (DesiredVelocity - a.velocity) * 4;
}
public Vector2 Wander(Agent a, GameTime gameTime)
{
int rando = Utility.rand.Next(0, 5);
if (rando == 1 || rando == 3 || rando == 5)
{
if (a.timeSinceStateLastWanderChange < gameTime.TotalGameTime.TotalSeconds - 1)
{
Vector2 NewSteer = new Vector2(Utility.rand.Next(-500, 500), Utility.rand.Next(-500, 500));
return NewSteer;
}
}
return a.steeringForce;
}
public override void Enter(Agent a)
{
a.col = Color.Red;
}
public override void Enter(Agent a)
{
a.col = Color.Yellow;
}
public override Vector2 Execute(Agent a, GameTime gameTime, Vector2 Target)
{
return this.steering.Wander(a, gameTime);
}
public virtual void Exit(Agent a)
{
}
void RemoveAgent(Agent a)
{
this.agents.Remove(a);
}
public virtual void Enter(Agent a)
{
}
private bool CheckForOverlap(Agent a)
{
foreach(Agent agent in this.agents)
{
if (a.Intersects(agent))
return true;
}
return false;
}
void AddAgent(Agent a)
{
this.agents.Add(a);
}
void PositionAgent(Agent a)
{
a.Location = new Vector2(rand.Next(this.Game.GraphicsDevice.Viewport.Bounds.Left + 10, this.Game.GraphicsDevice.Viewport.Bounds.Right - 10),
rand.Next(this.Game.GraphicsDevice.Viewport.Bounds.Top + 10, this.Game.GraphicsDevice.Viewport.Bounds.Bottom - 10));
a.SetTranformAndRect();
}
void SpawnAgent()
{
Agent a = new Agent(this.Game);
a.Initialize();
this.PositionAgent(a);
while(CheckForOverlap(a))
{
this.PositionAgent(a);
}
a.state = this.stateContainer.wander;
a.state.Enter(a);
this.AddAgent(a);
}
public void ChangeAgentState(Agent a, State newState)
{
a.state.Exit(a);
a.state = newState;
a.state.Enter(a);
}
public override Vector2 Execute(Agent a, GameTime gameTime, Vector2 Target)
{
return this.steering.Seek(a, this.input.mouseDirection);
}
public virtual Vector2 Execute(Agent a, GameTime gameTime, Vector2 Target)
{
return new Vector2(0, 0);
}
public override void Exit(Agent a)
{
}
public override void Enter(Agent a)
{
a.col = Color.Blue;
}