/// <summary>
/// Performs a dogfight move against the opponent
/// </summary>
/// <param name="ti">Team on which the ai is registered</param>
/// <param name="ai">Character to perform move</param>
/// <param name="target">Opponent of the ai</param>
public void doDogfightMove(TeamInformation ti, DynamicObject ai, StaticObject target)
{
if (!this.isObjectRegistered(ai))
{
return;
}
float radiusToGoBehindTarget = (target.getBoundingSphere().Radius + ai.getBoundingSphere().Radius) * RADIUS_MULTIPLIER_TO_GO_BEHIND_TARGET;
Vector3 wpPosition = target.Position + Vector3.Normalize(Matrix.CreateFromQuaternion(target.rotation).Forward) * radiusToGoBehindTarget;
Vector3 wpDPosition = target.Position + Vector3.Normalize(Matrix.CreateFromQuaternion(target.rotation).Up) * radiusToGoBehindTarget / RADIUS_FACTOR_TO_GO_ABOVE_TARGET;
if (Vector3.Dot(Vector3.Normalize(wpPosition - target.Position), Vector3.Normalize(ai.Position - target.Position)) < DOT_ANGLE_TO_STOP_DOGFIGHT_MOVE ||
(ai.Position - target.Position).Length() > CHASE_WHEN_FURTHER)
{
PathInformation fighterPath = objectPaths[ai];
List <Node> waypointList = fighterPath.remainingPath;
//we clear the waypoint list and add new waypoints:
if (waypointList.Count > 0)
{
bool shouldAddTopWaypt = (Vector3.Dot(Vector3.Normalize(Matrix.CreateFromQuaternion(target.rotation).Forward), Vector3.Normalize(target.Position - ai.Position)) > 0);
if ((wpPosition - waypointList.ElementAt(0).Position).Length() > TARGET_WP_BUFFER || shouldAddTopWaypt)
{
waypointList.Clear();
if (shouldAddTopWaypt)
{
waypointList.Insert(0, new Node(wpDPosition, -1));
}
waypointList.Insert(0, new Node(wpPosition, -1));
}
}
else
{
if (Vector3.Dot(Vector3.Normalize(Matrix.CreateFromQuaternion(target.rotation).Forward), Vector3.Normalize(target.Position - ai.Position)) > 0)
{
waypointList.Insert(0, new Node(wpDPosition, -1));
}
waypointList.Insert(0, new Node(wpPosition, -1));
}
fighterPath.remainingPath = waypointList;
}
else //stop navigation (we are behind the target so we can start shooting it)
{
getPath(ai).Clear();
}
}
private int topupAssignedFightersToBattle(TeamInformation ti, StaticObject enemy)
{
Dictionary<StaticObject, int> numEngagedFightersPerEnemy = countFightersEngagedOnEnemy(ti);
int numToScramble = 0;
if (enemy is playerObject)
numToScramble = FIGHTERS_TO_SCRAMBLE_FOR_PLAYER;
else if (enemy is Destroyer)
numToScramble = FIGHTERS_TO_SCRAMBLE_FOR_DESTROYER;
//if the enemy is already being faught then just top up the fighters when they die off
if (numEngagedFightersPerEnemy.Keys.Contains(enemy))
numToScramble -= numEngagedFightersPerEnemy[enemy];
//now get the healthiest fighters and scramble them:
if (numToScramble > 0)
{
PowerDataStructures.PriorityQueue<float, Fighter> healthiestInactiveFighters = getHealthiestFighters(ti, FighterState.FS_IDLE);
int numIdleAvailable = healthiestInactiveFighters.Count;
//when we have enough fighters available just scramble them
if (numIdleAvailable >= numToScramble)
{
for (int i = 0; i < numToScramble; ++i)
ti.fighterBattleList.Add(healthiestInactiveFighters.DequeueValue(), enemy);
return numIdleAvailable;
}
//when we have too few fighters reassign them to more important targets
else
{
//add what we do have:
for (int i = 0; i < numIdleAvailable; ++i)
ti.fighterBattleList.Add(healthiestInactiveFighters.DequeueValue(), enemy);
//now find more fighters and reassign:
PowerDataStructures.PriorityQueue<float, Fighter> healthiestActiveFighters = getHealthiestFighters(ti, FighterState.FS_ENGAGED);
int numReassigned = 0;
foreach (KeyValuePair<float,Fighter> fighter in healthiestActiveFighters)
if (getEliminationPriority(ti.fighterBattleList[fighter.Value]) < getEliminationPriority(enemy))
{
ti.fighterBattleList.Remove(fighter.Value);
ti.fighterBattleList.Add(fighter.Value, enemy);
if (numIdleAvailable+(++numReassigned) == numToScramble)
break;
}
return numReassigned+numIdleAvailable;
}
}
else return 0;
}
/// <summary>
/// Performs a dogfight move against the opponent
/// </summary>
/// <param name="ti">Team on which the ai is registered</param>
/// <param name="ai">Character to perform move</param>
/// <param name="target">Opponent of the ai</param>
public void doDogfightMove(TeamInformation ti, DynamicObject ai, StaticObject target)
{
if (!this.isObjectRegistered(ai)) return;
float radiusToGoBehindTarget = (target.getBoundingSphere().Radius + ai.getBoundingSphere().Radius) * RADIUS_MULTIPLIER_TO_GO_BEHIND_TARGET;
Vector3 wpPosition = target.Position + Vector3.Normalize(Matrix.CreateFromQuaternion(target.rotation).Forward) * radiusToGoBehindTarget;
Vector3 wpDPosition = target.Position + Vector3.Normalize(Matrix.CreateFromQuaternion(target.rotation).Up) * radiusToGoBehindTarget / RADIUS_FACTOR_TO_GO_ABOVE_TARGET;
if (Vector3.Dot(Vector3.Normalize(wpPosition - target.Position), Vector3.Normalize(ai.Position - target.Position)) < DOT_ANGLE_TO_STOP_DOGFIGHT_MOVE ||
(ai.Position - target.Position).Length() > CHASE_WHEN_FURTHER)
{
PathInformation fighterPath = objectPaths[ai];
List<Node> waypointList = fighterPath.remainingPath;
//we clear the waypoint list and add new waypoints:
if (waypointList.Count > 0)
{
bool shouldAddTopWaypt = (Vector3.Dot(Vector3.Normalize(Matrix.CreateFromQuaternion(target.rotation).Forward), Vector3.Normalize(target.Position - ai.Position)) > 0);
if ((wpPosition - waypointList.ElementAt(0).Position).Length() > TARGET_WP_BUFFER || shouldAddTopWaypt)
{
waypointList.Clear();
if (shouldAddTopWaypt)
waypointList.Insert(0, new Node(wpDPosition, -1));
waypointList.Insert(0, new Node(wpPosition, -1));
}
}
else
{
if (Vector3.Dot(Vector3.Normalize(Matrix.CreateFromQuaternion(target.rotation).Forward), Vector3.Normalize(target.Position - ai.Position)) > 0)
waypointList.Insert(0, new Node(wpDPosition, -1));
waypointList.Insert(0, new Node(wpPosition, -1));
}
fighterPath.remainingPath = waypointList;
}
else //stop navigation (we are behind the target so we can start shooting it)
getPath(ai).Clear();
}
private bool isTargetMarkedForElimination(StaticObject target, TeamInformation ti)
{
foreach (System.Collections.Generic.KeyValuePair<int, BBN_Game.Objects.StaticObject> pair in ti.scrambleQueue)
if (pair.Value == target)
return true;
return false;
}
private void routePlayerToTurret(TeamInformation ti, Turret turret)
{
ti.playerObjective = turret;
List<GridObjectInterface> neighbouringObjects = this.spatialGrid.checkNeighbouringBlocks(turret);
Node closeWaypointToTurret = null;
foreach (GridObjectInterface obj in neighbouringObjects)
if (obj is Node && (obj.Position - ti.playerObjective.Position).Length() <= GridDataCollection.MAX_CAPTURE_DISTANCE)
{
closeWaypointToTurret = obj as Node;
break;
}
neighbouringObjects = this.spatialGrid.checkNeighbouringBlocks(ti.teamPlayer);
Node closeWaypointToPlayer = null;
float minDist = 0;
foreach (GridObjectInterface obj in neighbouringObjects)
if (obj is Node)
{
float dist = (obj.Position - ti.teamPlayer.Position).Length();
if (closeWaypointToPlayer == null || minDist > dist)
{
closeWaypointToPlayer = obj as Node;
minDist = dist;
}
}
if (!(closeWaypointToTurret == null || closeWaypointToPlayer == null))
navComputer.setNewPathForRegisteredObject(ti.teamPlayer, closeWaypointToPlayer, closeWaypointToTurret);
else
{
List<Node> path = new List<Node>();
path.Add(new Node(ti.playerObjective.Position + Vector3.Normalize(Matrix.CreateFromQuaternion(ti.playerObjective.rotation).Forward) *
(ti.playerObjective.getGreatestLength + ti.teamPlayer.getGreatestLength) * LINE_OF_SIGHT_CLOSE_DIST_MULTIPLYER, -1));
navComputer.objectPaths[ti.teamPlayer].remainingPath = path;
}
}
private bool isFighterEngagedInBattle(TeamInformation ti, Fighter fi)
{
return ti.fighterBattleList.Keys.Contains(fi);
}
private bool isTargetAlreadyBattledByFighters(TeamInformation ti, StaticObject target)
{
return ti.fighterBattleList.Values.Contains(target);
}
private bool isDestroyerEngaged(TeamInformation ti, Destroyer ds)
{
if (ti.destroyerBattleList.Keys.Contains(ds))
return true;
else
return false;
}
private Node getRandomPatrolNode(TeamInformation ti)
{
if (ti.teamOwnedNodes.Count > 0)
return ti.teamOwnedNodes.ElementAt(randomizer.Next(0, ti.teamOwnedNodes.Count - 1));
else return null;
}
private PowerDataStructures.PriorityQueue<float, Fighter> getHealthiestFighters(TeamInformation ti, FighterState requiredFighterState)
{
PowerDataStructures.PriorityQueue<float, Fighter> healthiestFighters = new PowerDataStructures.PriorityQueue<float,Fighter>(true);
foreach (Fighter fi in ti.teamFighters)
if (requiredFighterState == FighterState.FS_IDLE)
{
if (!isFighterEngagedInBattle(ti,fi))
healthiestFighters.Add(new KeyValuePair<float,Fighter>(fi.getHealth,fi));
}
else if (requiredFighterState == FighterState.FS_ENGAGED)
{
if (!isFighterEngagedInBattle(ti, fi))
healthiestFighters.Add(new KeyValuePair<float, Fighter>(fi.getHealth, fi));
}
else if (requiredFighterState == FighterState.FS_DONTCARE)
healthiestFighters.Add(new KeyValuePair<float, Fighter>(fi.getHealth, fi));
return healthiestFighters;
}
private Dictionary<StaticObject, int> countFightersEngagedOnEnemy(TeamInformation ti)
{
Dictionary<StaticObject, int> result = new Dictionary<StaticObject, int>();
foreach (StaticObject enemy in ti.fighterBattleList.Values)
if (!result.Keys.Contains(enemy))
result.Add(enemy, 1);
else
result[enemy]++;
return result;
}
public void registerTeam(TeamInformation ti)
{
if (!infoOnTeams.Contains(ti))
infoOnTeams.Add(ti);
}