private void InitStateMachine()
{
blackboard = new StateBlackboard();
blackboard.Add <bool>(BlackboardKey.DamageFlag, false);
blackboard.Add <bool>(BlackboardKey.RepeatDamageFlag, false);
blackboard.Add <Transform>(BlackboardKey.Transform, transform);
blackboard.Add <float>(BlackboardKey.AttackRange, 0f);
EnemyIdleState idleState = EnemyIdleState.Create(blackboard, animator, "Idle", 0);
StateNode idleNode = new StateNode(idleState, new Condition(() => { return(true); }));
SetAnimTriggerAction walkAction = new SetAnimTriggerAction(blackboard, animator, "Run");
MeleeAttackState meleeAttackState = MeleeAttackState.Create(blackboard, animator, navAgent, attackValidator.MeleeAttacks, transform, BlackboardKey.AttackRange, BlackboardKey.AnimTrigger, walkAction, 300);
StateNode attackNode = new StateNode(meleeAttackState, new Condition(() => { return(target != null); }));
DamageState damageState = DamageState.Create(blackboard, animator, "Damage", 500);
StateNode damageNode = new StateNode(damageState, new Condition(() => { return(blackboard.Get <bool>(BlackboardKey.DamageFlag)); }));
DeathState deathState = DeathState.Create(blackboard, animator, "Death", int.MaxValue);
StateNode deathNode = new StateNode(deathState, new Condition(() => { return(!self.IsAlive); }));
List <StateNode> nodes = new List <StateNode>();
nodes.Add(idleNode);
nodes.Add(attackNode);
nodes.Add(damageNode);
nodes.Add(deathNode);
stateMachine = new StateMachine(blackboard, nodes, idleState);
}
public override void Init()
{
base.Init();
wanderState = new WanderState(this);
shootState = new ShootState(this, enemyObj.shootRate);
investigationState = new InvestigateState(this);
stunnedState = new StunnedState(this);
meleeAttackState = new MeleeAttackState(this);
refillAmmoState = new RefifllAmmo(this);
retreatState = new Retreat(this, minHealthForRetreat);
qMark = Resources.Load <Sprite>("StateIcons\\what");
wanderState.AddTransition(() =>
{
if (enemyObj.enemySight.IsPlayerInSight() && enemyObj.rifle.Ammo > 0)
{
Diagnostic.Instance.AddLog(enemyObj.gameObject, "See the player, shooting!");
return(true);
}
return(false);
}, shootState);
wanderState.AddTransition(() =>
{
if (enemyObj.rifle.Ammo <= 0)
{
var packs = GameManager.Instance.GetAvailableAmmoPacks();
if (packs.Count > 0)
{
if (stateMachine.GetCurrentState() != refillAmmoState)
{
refillAmmoState.allPacks = packs.ToArray();
Diagnostic.Instance.AddLog(enemyObj.gameObject, "No ammo, got nothing to do, going to get some");
return(true);
}
}
}
return(false);
}, refillAmmoState);
wanderState.AddTransition(() =>
{
if (enemyObj.health.GetHealth() < minHealthForRetreat)
{
var packs = GameManager.Instance.GetAvailableHealthPacks();
if (packs.Count > 0)
{
if (stateMachine.GetCurrentState() != retreatState)
{
retreatState.allPacks = packs.ToArray();
Diagnostic.Instance.AddLog(enemyObj.gameObject, "Low health, got nothing to do, going to get some");
return(true);
}
}
}
return(false);
}, retreatState);
wanderState.AddTransition(() =>
{
if (enemyObj.rifle.Ammo <= 0)
{
var packs = GameManager.Instance.GetAvailableAmmoPacks();
if (packs.Count > 0)
{
if (stateMachine.GetCurrentState() != refillAmmoState)
{
Diagnostic.Instance.AddLog(enemyObj.gameObject, "No ammo, got nothing to do, going to get some");
return(true);
}
}
}
return(false);
}, refillAmmoState);
wanderState.AddTransition(() =>
{
if (enemyObj.enemySight.IsPlayerInSight() && enemyObj.rifle.Ammo <= 0)
{
Diagnostic.Instance.AddLog(enemyObj.gameObject, "See the player, no ammo, will attack with hands!");
return(true);
}
return(false);
}, meleeAttackState);
refillAmmoState.AddTransition(() =>
{
if (enemyObj.rifle.Ammo > 0)
{
if (refillAmmoState.playerLastKnowsPosition == null)
{
Diagnostic.Instance.AddLog(enemyObj.gameObject, "Go ammo, don't know where player is, will wander around");
return(true);
}
}
return(false);
}, wanderState);
refillAmmoState.AddTransition(() =>
{
if (enemyObj.enemySight.IsPlayerInSight())
{
Diagnostic.Instance.AddLog(enemyObj.gameObject, "Saw player, no time for refill ammo, attack!");
return(true);
}
return(false);
}, meleeAttackState);
retreatState.AddTransition(() =>
{
if (enemyObj.enemySight.IsPlayerInSight())
{
Diagnostic.Instance.AddLog(enemyObj.gameObject, "Saw player, no time for get healthpack, attack!");
return(true);
}
return(false);
}, shootState);
retreatState.AddTransition(() =>
{
//If the health was restored OR health is low but no packs available, go back wandering
if (enemyObj.health.GetHealth() > minHealthForRetreat ||
(enemyObj.health.GetHealth() <= minHealthForRetreat && GameManager.Instance.GetAvailableHealthPacks().Count == 0))
{
Diagnostic.Instance.AddLog(enemyObj.gameObject, "Feeling better, going to stroll around...");
return(true);
}
return(false);
}, wanderState);
shootState.AddTransition(() =>
{
if (!enemyObj.enemySight.IsPlayerInSight())
{
investigationState.waitBeforeGoingToPoint = 0;
investigationState.investigationPoint = Player.Instance.transform.position;
shootTimer = 15.0f;
Diagnostic.Instance.AddLog(enemyObj.gameObject, "Lost sight of player, going to check last known psition (and keep shooting, why not)");
return(true);
}
return(false);
}, investigationState);
shootState.AddTransition(() => {
return(enemyObj.rifle.Ammo <= 0);
}, meleeAttackState);
meleeAttackState.AddTransition(() => {
if (meleeAttackState.playerLastKnownPosition != null)
{
investigationState.investigationPoint = meleeAttackState.playerLastKnownPosition.Value;
return(true);
}
return(false);
}, investigationState);
investigationState.AddTransition(() => {
if (enemyObj.enemySight.IsPlayerInSight())
{
Diagnostic.Instance.AddLog(enemyObj.gameObject, "See the player, shooting!");
return(true);
}
return(false);
}, shootState);
investigationState.AddTransition(() => {
return(investigationState.done);
}, wanderState);
stunnedState.AddTransition(() =>
{
if (!stunnedState.isStunned)
{
investigationState.investigationPoint = enemyObj.transform.position;
return(true);
}
return(false);
},
investigationState);
//Beserk will respond to alarm
Enemy.OnAlarmSent += GoInsestigateSOS;
stateMachine.SetState(wanderState);
}
private void Start()
{
attackState = new MeleeAttackState(this);
}