IEnumerator Start()
{
var state = new AIStates.NextLightState(
this,
agent,
aIManager
);
StartCoroutine(state.Enter());
yield break;
}
IEnumerator Start()
{
// Initialize states of the state machine
var blockerState = new AIStates.BlockState(
distanceThreadshold,
null,
agent);
var wanderingState = new AIStates.WanderingState(
agent.transform.position,
wanderingDirectionChangePeriod,
wanderingDistance,
wanderingSpeed,
agent);
var nextLightState = new AIStates.NextLightState(
this,
agent,
aIManager
);
yield return(null);
// Initial positions
agent.destination = agent.transform.position;
while (true)
{
var newState = state;
try
{
var lastLight = nextLightState.light;
// Evaluate conditions to change the behaviour
{
// If the enemy is close to the previous light and to the player then jump into blocker mode
if (lastLight != null &&
PlayerAgent.instance.transform.position.NearlyEqual(lastLight.transform.position, blockingDistance) &&
PlayerAgent.instance.transform.position.NearlyEqual(transform.position, blockingDistance))
{
newState = State.Blocker;
}
else
{
switch (state)
{
case State.Idle:
{
newState = State.Wandering;
}
break;
case State.Wandering:
{
if (Time.time - lastStateChange > wanderingTime)
{
newState = State.SearchingNewLight;
}
}
break;
case State.Blocker:
{
if (!PlayerAgent.instance.transform.position.NearlyEqual(agent.transform.position, blockingDistance))
{
newState = State.Wandering;
}
}
break;
case State.SearchingNewLight:
{
}
break;
}
}
}
if (newState != state)
{
// Exit the previous state
if (lastCoroutine != null)
{
Debug.Log("Stopping previous state " + state);
StopCoroutine(lastCoroutine);
switch (state)
{
case State.Wandering:
wanderingState.Exit();
break;
case State.Blocker:
blockerState.Exit();
break;
case State.SearchingNewLight:
nextLightState.Exit();
break;
}
}
Debug.Log("Starting new state state " + newState);
// Enter the new state
switch (newState)
{
case State.Wandering:
{
wanderingState.aroundPosition = agent.transform.position;
lastCoroutine = StartCoroutine(wanderingState.Enter());
}
break;
case State.Blocker:
{
blockerState.target = lastLight.transform;
lastCoroutine = StartCoroutine(blockerState.Enter());
}
break;
case State.SearchingNewLight:
{
lastCoroutine = StartCoroutine(nextLightState.Enter());
}
break;
}
state = newState;
lastStateChange = Time.time;
}
}
catch (Exception e)
{
Debug.LogException(e);
newState = State.Idle;
}
yield return(null);
}
}
