/*enum MeleeFighterState
* {
* TooFar,
* TooNear,
* InMeleeDistance
* }
*
* MeleeFighterState state;*/
protected override void Update()
{
if (Time.time > nextDistanceCheckTime)
{
nextDistanceCheckTime = Time.time + distanceCheckingInterval;
myWidth = entity.width;
enemyWidth = enemySensing.nearestEnemy.width;
Vector3 nearestEnemyPosition = enemySensing.nearestEnemy.transform.position;
Vector3 myPosition = entity.transform.position;
float widthFactor = myWidth + enemyWidth; //multiply the resulting distanceVectorBythisFactor to also use width
Vector3 distanceVector = nearestEnemyPosition - myPosition;
//float distanceToEnemySquared = (distanceVector - distanceVector.normalized * widthFactor).sqrMagnitude;
float distanceToEnemy = (distanceVector - distanceVector.normalized * widthFactor).magnitude;
//if the enemy is moving, we move to the position he will be at the time we arrive
EC_Movement enemyMovement = enemySensing.nearestEnemy.GetComponent <EC_Movement>();
if (enemyMovement.IsMoving())
{
//heuristically calculae future position
//1. how long will it take for me to reach the enemy?
float timeToReachEnemy = distanceToEnemy / movement.GetMaxSpeed();
//2. where will the enemy be after this time
Vector3 futurePosition = nearestEnemyPosition + enemyMovement.GetCurrentVelocity() * timeToReachEnemy;
movement.MoveTo(futurePosition);
}
else
{
movement.MoveTo(nearestEnemyPosition + (myPosition - nearestEnemyPosition).normalized * (perfectMeleeDistance + myWidth + enemyWidth));
}
if ((nearestEnemyPosition - myPosition).sqrMagnitude > maxMeleeDistance)
{
inRange = false;
movement.StopLookAt();
}
else
{
inRange = true;
movement.LookAt(enemySensing.nearestEnemy.transform);
}
}
if (inRange)
{
if (weapon.CanAttack())
{
weapon.Attack();
}
}
}
void Posess()
{
unitIsPosessedByPlayer = true;
unitAI.posessedByPlayer = true;
movement.StopLookAt();
cam.GetComponent <SmoothCameraFollow>().enabled = true;
// movement.Posess();
}
protected override void Update()
{
if (Time.time > nextDistanceCheckTime)
{
nextDistanceCheckTime = Time.time + distanceCheckingInterval;
myWidth = entity.width;
enemyWidth = enemySensing.nearestEnemy.width;
Vector3 nearestEnemyPosition = enemySensing.nearestEnemy.transform.position;
Vector3 myPosition = entity.transform.position;
float widthFactor = myWidth + enemyWidth; //multiply the resulting distanceVectorBythisFactor to also use width
Vector3 distanceVector = nearestEnemyPosition - myPosition;
float distanceToEnemy = (distanceVector - distanceVector.normalized * widthFactor).sqrMagnitude;
movement.MoveTo(nearestEnemyPosition + (myPosition - nearestEnemyPosition).normalized * (perfectShootingDistance + myWidth + enemyWidth));
if ((nearestEnemyPosition - myPosition).sqrMagnitude > maxShootingDistance)
{
inRange = false;
movement.StopLookAt();
weapon.StopAiming();
//Debug.Log("stop aim");
}
else
{
inRange = true;
// Debug.Log("start aim");
movement.LookAt(enemySensing.nearestEnemy.transform);
weapon.AimAt(enemySensing.nearestEnemy);
}
}
if (inRange)
{
if (weapon.CanShoot())
{
weapon.Shoot();
}
}
}
public override void BehaviourUpdate()
{
//Profiler.BeginSample("BehaviourUpdate");
#region debug
if (Input.GetKeyDown(KeyCode.B))
{
combat.Block(currentStance.blocks[0]);
}
if (Input.GetKeyDown(KeyCode.N))
{
combat.B_BlockFlinch();
}
if (Input.GetKeyDown(KeyCode.M))
{
combat.Evade(currentStance.evades[1]);
}
if (Input.GetKeyDown(KeyCode.L))
{
combat.MeleeAttack(null, currentStance.attacks[1]);
}
#endregion
//cache some variables for later
nearestEnemy = sensing.nearestEnemy;
currentStance = unitAI.currentStance;
myTransformPosition = entity.myTransform.position;
enemyIsNull = nearestEnemy == null;
//1. look at the enemy, if no enemy present -> continue looking in the movement direction
if (!enemyIsNull)
{
//but only if something chenged
if (nearestEnemyLastFrame != nearestEnemy)
{
nearestEnemysTransform = nearestEnemy.myTransform;
movement.LookAt(nearestEnemysTransform);
}
nearestEnemyPosition = nearestEnemysTransform.position;
currentSquaredDistanceToNearestEnemy = (nearestEnemyPosition - myTransformPosition).sqrMagnitude;
}
else
{
if (nearestEnemyLastFrame != nearestEnemy)
{
movement.StopLookAt();
}
}
switch (meleeAttackBehaviourState)
{
//2. if theres an enemy -> walk towards him
case MeleeAttackBehaviourState.Idle:
if (!enemyIsNull)
{
movement.MoveTo(nearestEnemyPosition);
meleeAttackBehaviourState = MeleeAttackBehaviourState.MovingToNearestEnemy;
}
break;
case MeleeAttackBehaviourState.MovingToNearestEnemy:
//check if the enemy is still alive
if (enemyIsNull)
{
meleeAttackBehaviourState = MeleeAttackBehaviourState.Idle;
movement.Stop();
}
//else check if we reached the destination
else if (currentSquaredDistanceToNearestEnemy < rangeToEnterMeleeCombatSquared)
{
meleeAttackBehaviourState = MeleeAttackBehaviourState.InMeleeFight;
}
//if not, check if we need to update the destination
else
{
if (Time.time > nextUpdateDestinationTime)
{
nextUpdateDestinationTime = Time.time + updateDestinationInterval;
movement.MoveTo(nearestEnemyPosition);
}
}
break;
case MeleeAttackBehaviourState.InMeleeFight:
//check if the enemy is still alive
if (enemyIsNull)
{
meleeAttackBehaviourState = MeleeAttackBehaviourState.Idle;
movement.Stop();
}
//check if the enemy has not escaped
else if (currentSquaredDistanceToNearestEnemy > rangeToEnterMeleeCombatSquared)
{
if (combat.currentCombatState == CombatState.CombatIdle)
{
movement.MoveTo(nearestEnemyPosition);
meleeAttackBehaviourState = MeleeAttackBehaviourState.MovingToNearestEnemy;
}
}
//else check if i am in range for an attack - fix range and attack
else
{
//decision making .- thats the tricky part here
if (combat.currentCombatState == CombatState.CombatIdle)
{
//check if we should block because our adversary was faster
if (nearestEnemy.combat.currentCombatState == CombatState.PreparingMeleeAttack)
{
//if he is lucky he will block or evade, if not then not :D
if (Random.Range(0, 2) == 0)
{
if (Random.Range(0, 2) == 0)
{
combat.Block(currentStance.blocks[0]);
}
else
{
combat.Evade(currentStance.evades[0]);
}
}
else
{
combat.MeleeAttack(nearestEnemy, currentStance.attacks[Random.Range(0, currentStance.attacks.Length)]);
}
}
else
{
combat.MeleeAttack(nearestEnemy, currentStance.attacks[Random.Range(0, currentStance.attacks.Length)]);
}
}
else if (combat.currentCombatState == CombatState.Blocking)
{
//check if we can stop blocking and attack
if (nearestEnemy.combat.currentCombatState != CombatState.PreparingMeleeAttack)
{
combat.MeleeAttack(nearestEnemy, currentStance.attacks[Random.Range(0, currentStance.attacks.Length)]);
}
}
}
break;
}
nearestEnemyLastFrame = nearestEnemy;
// Profiler.EndSample();
}
public override void UpdateComponent()
{
switch (state)
{
case MissileFighterState.Idle:
if (sensing.nearestEnemy != null)
{
state = MissileFighterState.AttackingEnemy;
}
break;
case MissileFighterState.AttackingEnemy:
break;
case MissileFighterState.AttackingBase:
break;
}
switch (shootingState)
{
case ShootingState.TooNear:
if (Time.time > nextCheckTime)
{
nextCheckTime = Time.time + checkingInterval;
float distanceToEnemy = (sensing.nearestEnemy.transform.position - transform.position).sqrMagnitude;
if (distanceToEnemy > minimalShootingDistance)
{
shootingState = ShootingState.InShootingDistance;
movement.Stop();
}
else
{
//move to a position perfectly in the shooting range
movement.MoveTo((transform.position - sensing.nearestEnemy.transform.position).normalized * (minimalShootingDistance + (maximalShootingDistance - minimalShootingDistance) / 2));
weapon.AimAt(sensing.nearestEnemy);
if (weapon.CanShoot())
{
weapon.Shoot();
}
}
}
break;
case ShootingState.TooFarAway:
if (Time.time > nextCheckTime)
{
nextCheckTime = Time.time + checkingInterval;
float distanceToEnemy = (sensing.nearestEnemy.transform.position - transform.position).sqrMagnitude;
if (distanceToEnemy < maximalShootingDistance)
{
shootingState = ShootingState.InShootingDistance;
movement.LookAt(sensing.nearestEnemy.transform);
weapon.AimAt(sensing.nearestEnemy);
movement.Stop();
}
else
{
movement.MoveTo((transform.position - sensing.nearestEnemy.transform.position).normalized * (minimalShootingDistance + (maximalShootingDistance - minimalShootingDistance) / 2));
}
}
break;
case ShootingState.InShootingDistance:
//1. check if we need to change state
if (Time.time > nextCheckTime)
{
nextCheckTime = Time.time + checkingInterval;
float distanceToEnemy = (sensing.nearestEnemy.transform.position - transform.position).sqrMagnitude;
if (distanceToEnemy < minimalShootingDistance)
{
shootingState = ShootingState.TooNear;
movement.LookAt(sensing.nearestEnemy.transform);
movement.MoveTo((transform.position - sensing.nearestEnemy.transform.position).normalized * (minimalShootingDistance + (maximalShootingDistance - minimalShootingDistance) / 2));
}
else if (distanceToEnemy > maximalShootingDistance)
{
shootingState = ShootingState.TooFarAway;
movement.StopLookAt();
weapon.StopAiming();
movement.MoveTo((transform.position - sensing.nearestEnemy.transform.position).normalized * (minimalShootingDistance + (maximalShootingDistance - minimalShootingDistance) / 2));
}
else
{
if (weapon.CanShoot())
{
weapon.Shoot();
}
}
}
break;
}
}