protected override void SetupStateMachine()
{
stateMachine = new StateMachine();
// Set Up States
var walkRandomWithinCircle = new MoveToRandomWithinCircle(this, agent, SpawnPatrolRadius);
var walkToTarget = new MoveToTarget(this, agent, MoveState.Walking);
var standAndWait = new StandAndWait();
var runAwayFromPlayer = new RunAwayFromTransform(this, agent, playerProximity, MoveState.Running);
var startRunningAway = new StartRunningAway(this, agent, playerProximity, EscapedPlayerRadius);
//////----
// Set Transitions
//
// walkToTarget
stateMachine.AddTransition(walkToTarget, standAndWait, ReachedGoalPosition());
stateMachine.AddTransition(walkToTarget, standAndWait, GotStuck());
// standAndWait
stateMachine.AddTransition(standAndWait, walkRandomWithinCircle, WaitFor(standAndWait, IdleTime));
// startRunningAway
stateMachine.AddTransition(startRunningAway, runAwayFromPlayer, () => true);
// runAwayFromPlayer
stateMachine.AddTransition(runAwayFromPlayer, startRunningAway, GotStuck());
stateMachine.AddTransition(runAwayFromPlayer, startRunningAway, WaitFor(runAwayFromPlayer, 1.0f));
stateMachine.AddTransition(runAwayFromPlayer, walkRandomWithinCircle, EscapedFromPlayer());
// One-frame States
stateMachine.AddTransition(walkRandomWithinCircle, walkToTarget, () => true);
//////----
// Set Universal Transitions
//
// One-frame States
stateMachine.AddUniversalTransition(startRunningAway, WantToRunFromPlayer());
// Conditions
Func <bool> ReachedGoalPosition() =>
() => Vector3.Distance(transform.position, goalPosition) <= agent.stoppingDistance + 0.2f;
Func <bool> GotStuck() =>
() => timeSinceLastProgress > StuckTime;
Func <bool> WaitFor(IWaitableState state, float seconds) =>
() => state.GetTimeElapsed() > seconds;
Func <bool> WantToRunFromPlayer() =>
() => (stateMachine._curState != runAwayFromPlayer) && playerProximity.IsInRange;
Func <bool> EscapedFromPlayer() =>
() => !playerProximity.IsInRange;
// Set initial state
stateMachine.SetState(walkRandomWithinCircle);
}
protected override void SetupStateMachine()
{
stateMachine = new StateMachine();
var pickAPointAtASafeDistance = new MaintainRangeFromTransform(this, player, playerProximity);
var walkToTarget = new MoveToTarget(this, agent, MoveState.Walking);
var startRunningAway = new StartRunningAway(this, agent, playerProximity, maxRangeToPlayer + 2.0f);
var runAwayABit = new RunAwayFromTransform(this, agent, playerProximity, MoveState.Running);
var stareAtPlayer = new StareAtTransform(this, agent, player);
var chargeAtPlayer = new ChargeAtPlayer(this, agent, player, rescueAttack);
var toggleAttack = new ToggleAttack(rescueAttack);
var aggressivelyWait = new StandAndWait();
//////----
// Set Transitions
//
// Passives
// pickAPointAtASafeDistance
stateMachine.AddTransition(pickAPointAtASafeDistance, walkToTarget, () => true);
// walkToTarget
stateMachine.AddTransition(walkToTarget, pickAPointAtASafeDistance, ReachedGoalPosition());
stateMachine.AddTransition(walkToTarget, startRunningAway, TooCloseToPlayer());
stateMachine.AddTransition(walkToTarget, pickAPointAtASafeDistance, GotStuck());
// startRunningAway
stateMachine.AddTransition(startRunningAway, runAwayABit, () => true);
// runAwayABit
stateMachine.AddTransition(runAwayABit, pickAPointAtASafeDistance, EscapedFromPlayer());
// Aggressive State Transitions
// stareAtPlayer
stateMachine.AddTransition(stareAtPlayer, toggleAttack, WaitFor(stareAtPlayer, chargeUpTime));
// toggleAttack
stateMachine.AddTransition(toggleAttack, chargeAtPlayer, () => true);
// chargeAtPlayer
stateMachine.AddTransition(chargeAtPlayer, aggressivelyWait, ChargeAttackEnded());
// aggressivelyWait
stateMachine.AddTransition(aggressivelyWait, pickAPointAtASafeDistance, WaitFor(aggressivelyWait, pauseAfterAttack));
//////----
// Universal Transitions
//
// One-frame States
stateMachine.AddUniversalTransition(stareAtPlayer, GoingAggressive());
// Conditions
Func <bool> ReachedGoalPosition() =>
() => Vector3.Distance(transform.position, goalPosition) <= agent.stoppingDistance + 0.2f;
Func <bool> GotStuck() =>
() => timeSinceLastProgress > StuckTime;
Func <bool> TooCloseToPlayer() =>
() => playerProximity.IsInRange;
Func <bool> EscapedFromPlayer() =>
() => !playerProximity.IsInRange;
Func <bool> WaitFor(IWaitableState state, float seconds) =>
() => state.GetTimeElapsed() > seconds;
Func <bool> ChargeAttackEnded() =>
() => !rescueAttack.IsEnabled();
Func <bool> GoingAggressive() =>
() =>
{
if (attackCooldown < 0.0f)
{
StartAttackCooldown();
return(true);
}
return(false);
};
// Set initial state
stateMachine.SetState(pickAPointAtASafeDistance);
}
