public override void Loop(MovingObject pShip)
{
if (Targets.Count == 0)
{
Targets.Add(new Vector3((Methods.Random.NextDouble() - 0.5) * World.Instance.Arena.Width, (Methods.Random.NextDouble() - 0.5) * World.Instance.Arena.Height, 0));
}
InputStates.Clear();
//InputStates.Fire = Methods.Random.Next(128) == 0; // Temporary random fire.
InputStates.Add(MoveToNextTarget(pShip));
InputStates.DetectPresses();
}
protected InputStates MoveToNextTarget(MovingObject pShip)
{
temporaryAdditionInputState.Clear();
if (Targets.Count <= 0)
{
return(temporaryAdditionInputState);
}
var nextTarget = Targets[0];
var vectorToTarget = Methods.ToVector2(nextTarget - pShip.Position); // Direction to target.
var vectorToFacing = Methods.ToVector2(pShip.Velocity + 4 * Methods.AngleToVector(pShip.Angle * Constants.DegreesToRadians)); // Ship's velocity plus a little bit of it's rotation.
var vectorAlong = Methods.Projection(vectorToFacing, vectorToTarget); // The part of the facing vector that is in line with the target (how close we are to pointing to the target).
var vectorAside = vectorToTarget - vectorAlong; // The part of the facing vector that is looking to the side of the target (how close we are to looking 90 degrees away from the target).
if (vectorAside.Length < vectorAlong.Length * 2 && vectorToTarget.Dot(vectorToFacing) > 0) // Generally facing target.
{
temporaryAdditionInputState.Up = true;
}
if (vectorAside.Length * 8 > vectorAlong.Length || vectorToTarget.Dot(vectorToFacing) < 0) // Accurately facing target.
{
if (vectorToFacing.Perpendicular.Dot(vectorToTarget) < 0) // Target is to the left.
{
temporaryAdditionInputState.Left = true;
}
else
{
temporaryAdditionInputState.Right = true;
}
}
if ((nextTarget - pShip.Position).Length < (Targets.Count > 1 ? 32 : 16)) // Are we there yet? More lenient if there are more waypoints to come.
{
Targets.RemoveAt(0);
}
return(temporaryAdditionInputState);
}
