/// <summary>
/// Make decision about what movement action to take.
/// </summary>
void Move()
{
// Cancel movement and animations if paralyzed, but still allow gravity to take effect
// This will have the (intentional for now) side-effect of making paralyzed flying enemies fall out of the air
// Paralyzed swimming enemies will just freeze in place
// Freezing anims also prevents the attack from triggering until paralysis cleared
if (entityBehaviour.Entity.IsParalyzed)
{
mobile.FreezeAnims = true;
if ((swims || flies) && !isLevitating)
{
controller.Move(Vector3.zero);
}
else
{
controller.SimpleMove(Vector3.zero);
}
return;
}
mobile.FreezeAnims = false;
// Apply gravity to non-moving AI if active (has a combat target) or nearby
if ((entityBehaviour.Target != null || senses.WouldBeSpawnedInClassic) && !flies && !swims)
{
controller.SimpleMove(Vector3.zero);
}
// If hit, get knocked back
if (knockBackSpeed > 0)
{
// Limit knockBackSpeed. This can be higher than what is actually used for the speed of motion,
// making it last longer and do more damage if the enemy collides with something (TODO).
if (knockBackSpeed > (40 / (PlayerSpeedChanger.classicToUnitySpeedUnitRatio / 10)))
{
knockBackSpeed = (40 / (PlayerSpeedChanger.classicToUnitySpeedUnitRatio / 10));
}
if (knockBackSpeed > (5 / (PlayerSpeedChanger.classicToUnitySpeedUnitRatio / 10)) &&
mobile.Summary.EnemyState != MobileStates.PrimaryAttack)
{
mobile.ChangeEnemyState(MobileStates.Hurt);
}
// Actual speed of motion is limited
Vector3 motion;
if (knockBackSpeed <= (25 / (PlayerSpeedChanger.classicToUnitySpeedUnitRatio / 10)))
{
motion = knockBackDirection * knockBackSpeed;
}
else
{
motion = knockBackDirection * (25 / (PlayerSpeedChanger.classicToUnitySpeedUnitRatio / 10));
}
// Move in direction of knockback
if (swims)
{
WaterMove(motion);
}
else if (flies || isLevitating)
{
controller.Move(motion * Time.deltaTime);
}
else
{
controller.SimpleMove(motion);
}
// Remove remaining knockback and restore animation
if (classicUpdate)
{
knockBackSpeed -= (5 / (PlayerSpeedChanger.classicToUnitySpeedUnitRatio / 10));
if (knockBackSpeed <= (5 / (PlayerSpeedChanger.classicToUnitySpeedUnitRatio / 10)) &&
mobile.Summary.EnemyState != MobileStates.PrimaryAttack)
{
mobile.ChangeEnemyState(MobileStates.Move);
}
}
// If a decent hit got in, reconsider whether to continue current tactic
if (knockBackSpeed > (10 / (PlayerSpeedChanger.classicToUnitySpeedUnitRatio / 10)))
{
EvaluateMoveInForAttack();
}
return;
}
// Monster speed of movement follows the same formula as for when the player walks
float moveSpeed = (entity.Stats.LiveSpeed + PlayerSpeedChanger.dfWalkBase) * MeshReader.GlobalScale;
// Reduced speed if playing a one-shot animation with enhanced AI
if (mobile.IsPlayingOneShot() && DaggerfallUnity.Settings.EnhancedCombatAI)
{
moveSpeed /= AttackSpeedDivisor;
}
// As long as the target is detected,
// giveUpTimer is reset to full
if (senses.DetectedTarget)
{
giveUpTimer = 200;
}
// GiveUpTimer value is from classic, so decrease at the speed of classic's update loop
if (!senses.DetectedTarget &&
giveUpTimer > 0 && classicUpdate)
{
giveUpTimer--;
}
// Change to idle animation if haven't moved or rotated
if (!mobile.IsPlayingOneShot())
{
// Rotation is done at classic update rate, so check at classic update rate
if (classicUpdate)
{
Vector3 currentDirection = transform.forward;
currentDirection.y = 0;
if (lastPosition == transform.position && lastDirection == currentDirection)
{
mobile.ChangeEnemyState(MobileStates.Idle);
rotating = false;
}
else
{
mobile.ChangeEnemyState(MobileStates.Move);
}
lastDirection = currentDirection;
}
// Movement is done at regular update rate, so check at regular update rate
else if (!rotating && lastPosition == transform.position)
{
mobile.ChangeEnemyState(MobileStates.Idle);
}
else
{
mobile.ChangeEnemyState(MobileStates.Move);
}
lastPosition = transform.position;
}
// Do nothing if no target or after giving up finding the target
if (entityBehaviour.Target == null || giveUpTimer == 0)
{
SetChangeStateTimer();
return;
}
// Get predicted target position
if (avoidObstaclesTimer == 0 && !lookingForDetour)
{
targetPos = senses.PredictedTargetPos;
// Flying enemies and slaughterfish aim for target face
if (flies || isLevitating || (swims && mobile.Summary.Enemy.ID == (int)MonsterCareers.Slaughterfish))
{
targetPos.y += 0.9f;
}
else
{
// Ground enemies target at their own height
// This avoids short enemies from stepping on each other as they approach the target
// Otherwise, their target vector aims up towards the target
var playerController = GameManager.Instance.PlayerController;
var deltaHeight = (playerController.height - controller.height) / 2;
targetPos.y -= deltaHeight;
}
tempMovePos = targetPos;
}
else
{
targetPos = tempMovePos;
}
// Get direction & distance.
var direction = targetPos - transform.position;
float distance = (targetPos - transform.position).magnitude;
// Ranged attacks
if (senses.TargetInSight && 360 * MeshReader.GlobalScale < senses.DistanceToTarget && senses.DistanceToTarget < 2048 * MeshReader.GlobalScale)
{
bool evaluateBow = mobile.Summary.Enemy.HasRangedAttack1 && mobile.Summary.Enemy.ID > 129 && mobile.Summary.Enemy.ID != 132;
bool evaluateRangedMagic = false;
if (!evaluateBow)
{
evaluateRangedMagic = CanCastRangedSpell();
}
if (evaluateBow || evaluateRangedMagic)
{
if (senses.TargetIsWithinYawAngle(22.5f, senses.LastKnownTargetPos))
{
if (!mobile.IsPlayingOneShot())
{
if (evaluateBow)
{
// Random chance to shoot bow
if (classicUpdate && DFRandom.rand() < 1000)
{
if (mobile.Summary.Enemy.HasRangedAttack1 && !mobile.Summary.Enemy.HasRangedAttack2)
{
mobile.ChangeEnemyState(MobileStates.RangedAttack1);
}
else if (mobile.Summary.Enemy.HasRangedAttack2)
{
mobile.ChangeEnemyState(MobileStates.RangedAttack2);
}
}
}
// Random chance to shoot spell
else if (classicUpdate && DFRandom.rand() % 40 == 0 &&
entityEffectManager.SetReadySpell(selectedSpell))
{
mobile.ChangeEnemyState(MobileStates.Spell);
}
}
}
else
{
TurnToTarget(direction.normalized);
}
return;
}
}
if (senses.TargetInSight && attack.MeleeTimer == 0 && senses.DistanceToTarget <= attack.MeleeDistance +
senses.TargetRateOfApproach && CanCastTouchSpell() && entityEffectManager.SetReadySpell(selectedSpell))
{
if (mobile.Summary.EnemyState != MobileStates.Spell)
{
mobile.ChangeEnemyState(MobileStates.Spell);
}
attack.ResetMeleeTimer();
return;
}
// Update melee decision
if (moveInForAttackTimer <= 0 && avoidObstaclesTimer == 0 && !lookingForDetour)
{
EvaluateMoveInForAttack();
}
if (moveInForAttackTimer > 0)
{
moveInForAttackTimer -= Time.deltaTime;
}
if (avoidObstaclesTimer > 0)
{
avoidObstaclesTimer -= Time.deltaTime;
}
if (avoidObstaclesTimer < 0)
{
avoidObstaclesTimer = 0;
}
if (changeStateTimer > 0)
{
changeStateTimer -= Time.deltaTime;
}
// Looking for detour
if (lookingForDetour)
{
CombatMove(direction, moveSpeed);
}
// Approach target until we are close enough to be on-guard, or continue to melee range if attacking
else if ((!retreating && distance >= (stopDistance * 2.75)) ||
(distance > stopDistance && moveInForAttack))
{
// If state change timer is done, or we are already pursuing, we can move
if (changeStateTimer <= 0 || pursuing)
{
CombatMove(direction, moveSpeed);
}
// Otherwise, just keep an eye on target until timer finishes
else if (!senses.TargetIsWithinYawAngle(22.5f, targetPos))
{
TurnToTarget(direction.normalized);
}
}
// Back away if right next to target, if retreating, or if cooling down from attack
// Classic AI never backs away
else if (DaggerfallUnity.Settings.EnhancedCombatAI && (senses.TargetInSight && (distance < stopDistance * .50 ||
(!moveInForAttack && distance < (stopDistance * retreatDistanceMultiplier)))))
{
// If state change timer is done, or we are already retreating, we can move
if (changeStateTimer <= 0 || retreating)
{
CombatMove(direction, moveSpeed / 2, true);
}
// Otherwise, just keep an eye on target until timer finishes
else if (!senses.TargetIsWithinYawAngle(22.5f, targetPos))
{
TurnToTarget(direction.normalized);
}
}
else if (!senses.TargetIsWithinYawAngle(22.5f, targetPos))
{
TurnToTarget(direction.normalized);
}
else if (avoidObstaclesTimer > 0 && distance > 0.1f)
{
CombatMove(direction, moveSpeed);
}
else // Next to target
{
SetChangeStateTimer();
pursuing = false;
retreating = false;
avoidObstaclesTimer = 0;
}
}
/// <summary>
/// Make decision about what movement action to take.
/// </summary>
void Move()
{
// Cancel movement and animations if paralyzed, but still allow gravity to take effect
// This will have the (intentional for now) side-effect of making paralyzed flying enemies fall out of the air
// Paralyzed swimming enemies will just freeze in place
// Freezing anims also prevents the attack from triggering until paralysis cleared
if (entityBehaviour.Entity.IsParalyzed)
{
mobile.FreezeAnims = true;
if ((swims || flies) && !isLevitating)
{
controller.Move(Vector3.zero);
}
else
{
controller.SimpleMove(Vector3.zero);
}
return;
}
mobile.FreezeAnims = false;
// If hit, get knocked back
if (knockBackSpeed > 0)
{
// Limit knockBackSpeed. This can be higher than what is actually used for the speed of motion,
// making it last longer and do more damage if the enemy collides with something (TODO).
if (knockBackSpeed > (40 / (PlayerSpeedChanger.classicToUnitySpeedUnitRatio / 10)))
{
knockBackSpeed = (40 / (PlayerSpeedChanger.classicToUnitySpeedUnitRatio / 10));
}
if (knockBackSpeed > (5 / (PlayerSpeedChanger.classicToUnitySpeedUnitRatio / 10)) &&
mobile.Summary.EnemyState != MobileStates.PrimaryAttack)
{
mobile.ChangeEnemyState(MobileStates.Hurt);
}
// Actual speed of motion is limited
Vector3 motion;
if (knockBackSpeed <= (25 / (PlayerSpeedChanger.classicToUnitySpeedUnitRatio / 10)))
{
motion = knockBackDirection * knockBackSpeed;
}
else
{
motion = knockBackDirection * (25 / (PlayerSpeedChanger.classicToUnitySpeedUnitRatio / 10));
}
// Move in direction of knockback
if (swims)
{
WaterMove(motion);
}
else if (flies || isLevitating)
{
controller.Move(motion * Time.deltaTime);
}
else
{
controller.SimpleMove(motion);
}
// Remove remaining knockback and restore animation
if (classicUpdate)
{
knockBackSpeed -= (5 / (PlayerSpeedChanger.classicToUnitySpeedUnitRatio / 10));
if (knockBackSpeed <= (5 / (PlayerSpeedChanger.classicToUnitySpeedUnitRatio / 10)) &&
mobile.Summary.EnemyState != MobileStates.PrimaryAttack)
{
mobile.ChangeEnemyState(MobileStates.Move);
}
}
// If a decent hit got in, reconsider whether to continue current tactic
if (knockBackSpeed > (10 / (PlayerSpeedChanger.classicToUnitySpeedUnitRatio / 10)))
{
EvaluateMoveInForAttack();
}
return;
}
// Apply gravity
if (!flies && !swims && !isLevitating && !controller.isGrounded)
{
controller.SimpleMove(Vector3.zero);
// Only return if actually falling. Sometimes mobiles can get stuck where they are !isGrounded but SimpleMove(Vector3.zero) doesn't help.
// Allowing them to continue and attempt a Move() in the code below frees them, but we don't want to allow that if we can avoid it so they aren't moving
// while falling, which can also accelerate the fall due to anti-bounce downward movement in Move().
if (lastPosition != transform.position)
{
return;
}
}
// Monster speed of movement follows the same formula as for when the player walks
float moveSpeed = (entity.Stats.LiveSpeed + PlayerSpeedChanger.dfWalkBase) * MeshReader.GlobalScale;
// Get isPlayingOneShot for use below
bool isPlayingOneShot = mobile.IsPlayingOneShot();
// Reduced speed if playing a one-shot animation with enhanced AI
if (isPlayingOneShot && DaggerfallUnity.Settings.EnhancedCombatAI)
{
moveSpeed /= AttackSpeedDivisor;
}
// As long as the target is detected,
// giveUpTimer is reset to full
if (senses.DetectedTarget)
{
giveUpTimer = 200;
}
// GiveUpTimer value is from classic, so decrease at the speed of classic's update loop
if (classicUpdate && !senses.DetectedTarget && giveUpTimer > 0)
{
giveUpTimer--;
}
// Change to idle animation if haven't moved or rotated
if (!mobile.IsPlayingOneShot())
{
// Rotation is done at classic update rate, so check at classic update rate
if (classicUpdate)
{
Vector3 currentDirection = transform.forward;
currentDirection.y = 0;
if (lastPosition == transform.position && lastDirection == currentDirection)
{
mobile.ChangeEnemyState(MobileStates.Idle);
rotating = false;
}
else
{
mobile.ChangeEnemyState(MobileStates.Move);
}
lastDirection = currentDirection;
}
// Movement is done at regular update rate, so check at regular update rate
else if (!rotating && lastPosition == transform.position)
{
mobile.ChangeEnemyState(MobileStates.Idle);
}
else
{
mobile.ChangeEnemyState(MobileStates.Move);
}
lastPosition = transform.position;
}
// Do nothing if no target or after giving up finding the target or if target position hasn't been acquired yet
if (senses.Target == null || giveUpTimer == 0 || senses.PredictedTargetPos == EnemySenses.ResetPlayerPos)
{
SetChangeStateTimer();
bashing = false;
return;
}
if (bashing)
{
if (senses.TargetInSight || senses.LastKnownDoor == null || !senses.LastKnownDoor.IsLocked)
{
bashing = false;
}
else
{
int speed = entity.Stats.LiveSpeed;
if (classicUpdate && DFRandom.rand() % speed >= (speed >> 3) + 6 && attack.MeleeTimer == 0)
{
mobile.ChangeEnemyState(MobileStates.PrimaryAttack);
attack.ResetMeleeTimer();
}
return;
}
}
bool targetPosIsEnemyPos = false;
// Get location to move towards. Either the combat target's position or, if trying to avoid an obstacle or fall,
// a location to try to detour around the obstacle/fall.
if (avoidObstaclesTimer == 0 && (senses.PredictedTargetPos.y > transform.position.y || ClearPathToPosition(senses.PredictedTargetPos)))
{
targetPos = senses.PredictedTargetPos;
// Flying enemies and slaughterfish aim for target face
if (flies || isLevitating || (swims && mobile.Summary.Enemy.ID == (int)MonsterCareers.Slaughterfish))
{
targetPos.y += 0.9f;
}
else
{
// Ground enemies target at their own height
// This avoids short enemies from stepping on each other as they approach the target
// Otherwise, their target vector aims up towards the target
var targetController = senses.Target.GetComponent <CharacterController>();
var deltaHeight = (targetController.height - controller.height) / 2;
targetPos.y -= deltaHeight;
}
tempMovePos = targetPos;
targetPosIsEnemyPos = true;
}
// If detouring, use the detour position
else if (avoidObstaclesTimer > 0)
{
targetPos = tempMovePos;
}
// Otherwise, go straight
else
{
tempMovePos = transform.position + transform.forward * 2;
targetPos = tempMovePos;
}
// Get direction & distance.
var direction = (targetPos - transform.position).normalized;
float distance = (targetPos - transform.position).magnitude;
// Ranged attacks
if (targetPosIsEnemyPos && senses.DetectedTarget && 360 * MeshReader.GlobalScale < senses.DistanceToTarget && senses.DistanceToTarget < 2048 * MeshReader.GlobalScale)
{
bool evaluateBow = mobile.Summary.Enemy.HasRangedAttack1 && mobile.Summary.Enemy.ID > 129 && mobile.Summary.Enemy.ID != 132;
bool evaluateRangedMagic = false;
if (!evaluateBow)
{
evaluateRangedMagic = CanCastRangedSpell();
}
if (evaluateBow || evaluateRangedMagic)
{
if (classicUpdate && senses.TargetIsWithinYawAngle(22.5f, senses.LastKnownTargetPos))
{
if (!isPlayingOneShot)
{
if (evaluateBow)
{
// Random chance to shoot bow
if (DFRandom.rand() < 1000)
{
if (mobile.Summary.Enemy.HasRangedAttack1 && !mobile.Summary.Enemy.HasRangedAttack2)
{
mobile.ChangeEnemyState(MobileStates.RangedAttack1);
}
else if (mobile.Summary.Enemy.HasRangedAttack2)
{
mobile.ChangeEnemyState(MobileStates.RangedAttack2);
}
}
}
// Random chance to shoot spell
else if (DFRandom.rand() % 40 == 0 &&
entityEffectManager.SetReadySpell(selectedSpell))
{
mobile.ChangeEnemyState(MobileStates.Spell);
}
}
}
else
{
TurnToTarget(direction);
}
return;
}
}
// Touch spells
if (targetPosIsEnemyPos && senses.TargetInSight && senses.DetectedTarget && attack.MeleeTimer == 0 && senses.DistanceToTarget <= attack.MeleeDistance +
senses.TargetRateOfApproach && CanCastTouchSpell() && entityEffectManager.SetReadySpell(selectedSpell))
{
if (mobile.Summary.EnemyState != MobileStates.Spell)
{
mobile.ChangeEnemyState(MobileStates.Spell);
}
attack.ResetMeleeTimer();
return;
}
// Update advance/retreat decision
if (moveInForAttackTimer <= 0 && avoidObstaclesTimer == 0)
{
EvaluateMoveInForAttack();
}
// Update timers
if (moveInForAttackTimer > 0)
{
moveInForAttackTimer -= Time.deltaTime;
}
if (avoidObstaclesTimer > 0 && senses.TargetIsWithinYawAngle(5.625f, targetPos))
{
avoidObstaclesTimer -= Time.deltaTime;
}
if (avoidObstaclesTimer < 0)
{
avoidObstaclesTimer = 0;
}
if (checkingClockwiseTimer > 0)
{
checkingClockwiseTimer -= Time.deltaTime;
}
if (checkingClockwiseTimer < 0)
{
checkingClockwiseTimer = 0;
}
if (changeStateTimer > 0)
{
changeStateTimer -= Time.deltaTime;
}
// If detouring, attempt to move
if (avoidObstaclesTimer > 0)
{
AttemptMove(direction, moveSpeed);
}
// Otherwise, if not still executing a retreat, approach target until close enough to be on-guard.
// If decided to move in for attack, continue until within melee range. Classic always moves in for attack.
else if ((!retreating && distance >= (stopDistance * 2.75)) ||
(distance > stopDistance && moveInForAttack))
{
// If state change timer is done, or we are continuing an already started combatMove, we can move immediately
if (changeStateTimer <= 0 || pursuing)
{
AttemptMove(direction, moveSpeed);
}
// Otherwise, look at target until timer finishes
else if (!senses.TargetIsWithinYawAngle(22.5f, targetPos))
{
TurnToTarget(direction);
}
}
// Back away from combat target if right next to it, or if decided to retreat and enemy is too close.
// Classic AI never backs awwy.
else if (DaggerfallUnity.Settings.EnhancedCombatAI && senses.TargetInSight && (distance < stopDistance * .50 ||
(!moveInForAttack && distance < (stopDistance * retreatDistanceMultiplier))))
{
// If state change timer is done, or we are already executing a retreat, we can move immediately
if (changeStateTimer <= 0 || retreating)
{
AttemptMove(direction, moveSpeed / 2, true);
}
// Otherwise, look at target until timer finishes
else if (!senses.TargetIsWithinYawAngle(22.5f, targetPos))
{
TurnToTarget(direction.normalized);
}
}
// Not moving, just look at target
else if (!senses.TargetIsWithinYawAngle(22.5f, targetPos))
{
TurnToTarget(direction.normalized);
}
else // Not moving, and no need to turn
{
SetChangeStateTimer();
pursuing = false;
retreating = false;
avoidObstaclesTimer = 0;
}
}
