private void UpdateInit(IUpdateEventArgs args)
{
_targetting = new RadiusExitTargetting(args.Sim.Map, _host.Tile, 1, 1);
_targetting.OwnTeam = _host.Stats.Team;
_state = TowerBehaviourState.Searching;
}
private void UpdateAiming(float ticks)
{
// find rotation angle from us to target
var targetDirection = CalcTargetDirection();
// update our direction according to our rotation rate
_rotationVel = RotationRate * TargettingBase.ShortestRotationDirection(_currentDirection, targetDirection);
_currentDirection = _currentDirection.Wrap(_rotationVel * ticks, 0.0f, Twopi);
// see if we've arrived nearly enough, and snap
if (Math.Abs(_currentDirection.Wrap(-targetDirection, 0.0f, Twopi)) <= RotationRate * ticks)
{
_currentDirection = targetDirection;
_state = TowerBehaviourState.Attacking;
}
_host.Rotation = _currentDirection;
}
private void UpdateSearching()
{
// see if anything has changed in our targetting range
if (_targetting.GetAgentVersionDelta() == 0)
{
return;
}
// if so, select a target
_targetTile = _targetting.GetBestTargetTile();
_targetMob = _targetting.GetBestTargetMob(_targetTile);
if (_targetMob == null)
{
// no target found, continue searching
}
else
{
// target found; start aiming
_state = TowerBehaviourState.Aiming;
}
}
private void UpdateAttacking()
{
// check if a better target has appeared
if (_targetting.GetAgentVersionDelta() > 0)
{
var potentialTile = _targetting.GetBestTargetTile();
var potentialMob = _targetting.GetBestTargetMob(potentialTile);
if (ReferenceEquals(potentialMob, _targetMob))
{
// stay on target
}
else if (potentialMob == null)
{
// no targets available
_state = TowerBehaviourState.Searching;
return;
}
else
{
// a better target has appeared
_targetTile = potentialTile;
_targetMob = potentialMob;
_state = TowerBehaviourState.Aiming;
return;
}
}
// continue to point at the target
_currentDirection = CalcTargetDirection();
_host.Rotation = _currentDirection;
// TODO fire at enemy
var attack = _host.CreateAttack(_targetMob);
_targetMob.OnHit(attack);
}
public void OnRemove(IExtendedAgent agent)
{
_state = TowerBehaviourState.Removed;
}
