public override void OnEnter()
{
var hasSighting = controller.LastSighting.HasSighting();
if (hasSighting)
{
// Start moving to the last know sighting of the player
controller.Agent.Resume();
controller.Agent.Destination = controller.LastSighting.Position;
}
else
{
// Should not happen
// Move to the patrol state if it does
var patrol = new AIStatePatrol(controller);
stateMachine.MoveTo(patrol);
}
}
protected override void Initialize()
{
capsule = GetComponent <CapsuleCollider>();
patrol = GetComponent <PatrolPath>();
agent = GetComponent <DungeonNavAgent>();
lastSighting = GetComponent <LastPlayerSighting>();
State startState = null;
if (hasPatrolling)
{
startState = new AIStatePatrol(this);
}
else
{
startState = new AIStateIdle(this);
}
stateMachine.MoveTo(startState);
}
protected override void HandleFrameUpdate(float elapsedTime)
{
base.HandleFrameUpdate(elapsedTime);
Collider playerCollider = null;
if (IsWithinPlayerProximity(ref playerCollider, controller.playerProximityRadius))
{
// close to the player. Move to the attack state
}
else
{
// Move to the player
controller.Agent.Destination = followTarget.position;
}
if (!IsPlayerVisible())
{
// Move to the last know position
if (controller.LastSighting.HasSighting())
{
var moveToLastKnown = new AIStateMoveToLastKnownPosition(controller);
stateMachine.MoveTo(moveToLastKnown);
}
else
{
// We don't have a last know position. Resume patroling
var patrol = new AIStatePatrol(controller);
stateMachine.MoveTo(patrol);
}
return;
}
else
{
// Player is visible. Update the last sighting
controller.LastSighting.Position = followTarget.position;
}
}
protected override void HandleFrameUpdate(float elapsedTime)
{
base.HandleFrameUpdate(elapsedTime);
// Check if the player is visible
if (IsPlayerVisible())
{
// Start persuit of the player
var persuit = new AIStatePersuit(controller);
stateMachine.MoveTo(persuit);
}
timeSinceStart += elapsedTime;
if (timeSinceStart >= controller.searchWaitTime)
{
// The player is not found and is lost. Clear the last sighting variable
controller.LastSighting.ClearSighting();
// Return back to the patrol state
var patrol = new AIStatePatrol(controller);
stateMachine.MoveTo(patrol);
}
}