/// <summary>
/// Restores all of this guards stolen keys.
/// </summary>
public void RestoreKeys()
{
// Re-enable keys on this guard.
foreach (KeyID key in stolenKeys)
{
DoorKey newKey = gameObject.AddComponent <DoorKey>();
newKey.KeyIdentity = key;
currentKeys.Add(key);
// Update where the AI can navigate to.
int maskBit = NavUtilities.NavAreaFromKeyID(key);
navAgent.areaMask = navAgent.areaMask | maskBit;
}
stolenKeys.Clear();
}
private void Start()
{
audioSource = GetComponent <AudioSource>();
// Populate the inital keys that this guard has.
stolenKeys = new List <KeyID>();
currentKeys = new List <KeyID>();
foreach (DoorKey key in gameObject.GetComponents <DoorKey>())
{
currentKeys.Add(key.KeyIdentity);
int maskBit = NavUtilities.NavAreaFromKeyID(key.KeyIdentity);
// Update where the AI can navigate to.
navAgent.areaMask = navAgent.areaMask | maskBit;
}
investigationPoints = new Stack <Vector3>();
// The stationary home is always the gaurds initial scene position and rotation.
stationaryHome = transform.position;
stationaryDirection = transform.forward;
// Set the initial state of this guard.
Behavior = initialBehavior;
}
/// <summary>
/// Makes the guard check if they have a given key to open a door.
/// If the guard doesn't have the key they may become suspicious or look for the key.
/// </summary>
/// <param name="doorKey">The type of key.</param>
/// <returns>True if the key is present.</returns>
public bool CheckKey(KeyDoor door)
{
// Does the guard think they have the key?
if (currentKeys.Contains(door.LockID))
{
KeyID requiredKey = door.LockID;
// Make sure the key hasn't been stolen.
foreach (DoorKey key in gameObject.GetComponents <DoorKey>())
{
if (key.KeyIdentity == requiredKey)
{
return(true);
}
}
// Otherwise the key has been stolen.
currentKeys.Remove(requiredKey);
stolenKeys.Add(requiredKey);
// Update the pathing in navmesh.
navAgent.areaMask -= NavUtilities.NavAreaFromKeyID(requiredKey);
// React to the key loss with behavior:
switch (Behavior)
{
case AIBehaviorState.Stationary:
case AIBehaviorState.Patrolling:
investigationPoints.Push(KeyRestock.RestockLocations[0].position);
Behavior = AIBehaviorState.Investigating;
break;
case AIBehaviorState.Investigating:
// Generate a cluster of suspicion points on the other side of the door.
investigationPoints.Push(KeyRestock.RestockLocations[0].position);
Behavior = AIBehaviorState.Investigating;
break;
}
}
return(false);
}