375 lines
12 KiB
C#
375 lines
12 KiB
C#
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/**************************************
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Copyright Unluck Software
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www.chemicalbliss.com
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***************************************/
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using UnityEngine;
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public class FlockChild : MonoBehaviour
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{
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[HideInInspector] public FlockController _spawner; // Reference to the flock controller that spawned this bird
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[HideInInspector] public Vector3 _wayPoint; // Waypoint used to steer towards
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public float _speed; // Current speed of bird
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[HideInInspector] public bool _dived = true; // Has recently performed a dive movement
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[HideInInspector] public float _stuckCounter; // Prevents looping around a waypoint by increasing minimum distance to waypoint
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[HideInInspector] public float _damping; // Damping used for steering (steer speed)
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[HideInInspector] public bool _soar = true; // Indicates if this is soaring
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[HideInInspector] public bool _landing; // Indicates if bird is landing or sitting idle
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[HideInInspector] public float _targetSpeed; // Max bird speed
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[HideInInspector] public bool _move = true; // Indicates if bird can fly
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public GameObject _model; // Reference to bird model
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public Transform _modelT; // Cached model transform
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public Transform _thisT; // Cached this transform
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// --- Animator replacement for Legacy Animation ---
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private Animator _anim; // Animator on _model
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// We assume the spawner provides these state names (strings):
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// _spawner._flapAnimation, _spawner._soarAnimation, _spawner._idleAnimation
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[HideInInspector] public float _avoidValue; // Randomized to reduce uniform avoidance
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[HideInInspector] public float _avoidDistance; // Distance from obstacle before starting to avoid
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float _soarTimer;
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bool _instantiated;
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static int _updateNextSeed = 0;
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int _updateSeed = -1;
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[HideInInspector] public bool _avoid = true;
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public Vector3 _landingPosOffset;
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public void Start()
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{
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FindRequiredComponents();
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Wander(0.0f);
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SetRandomScale();
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_thisT.position = findWaypoint();
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RandomizeStartAnimationFrame();
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InitAvoidanceValues();
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_speed = _spawner._minSpeed;
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_spawner._activeChildren++;
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_instantiated = true;
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if (_spawner._updateDivisor > 1)
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{
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int _updateSeedCap = _spawner._updateDivisor - 1;
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_updateNextSeed++;
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this._updateSeed = _updateNextSeed;
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_updateNextSeed = _updateNextSeed % _updateSeedCap;
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}
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}
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public void Update()
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{
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// Skip frames (performance batching from original)
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if (_spawner._updateDivisor <= 1 || _spawner._updateCounter == _updateSeed)
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{
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SoarTimeLimit();
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CheckForDistanceToWaypoint();
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RotationBasedOnWaypointOrAvoidance();
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LimitRotationOfModel();
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}
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}
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public void OnDisable()
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{
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CancelInvoke();
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_spawner._activeChildren--;
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}
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public void OnEnable()
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{
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if (_instantiated)
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{
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_spawner._activeChildren++;
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if (_landing)
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{
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PlayStateSafe(_spawner._idleAnimation, 0.1f);
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}
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else
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{
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PlayStateSafe(_spawner._flapAnimation, 0.1f);
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}
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}
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}
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public void FindRequiredComponents()
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{
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if (_thisT == null) _thisT = transform;
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if (_model == null)
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{
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var modelTF = _thisT.Find("Model");
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if (modelTF != null) _model = modelTF.gameObject;
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else _model = gameObject; // fallback if hierarchy differs
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}
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if (_modelT == null) _modelT = _model.transform;
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// Animator (replace Legacy Animation)
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_anim = _model.GetComponent<Animator>();
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if (_anim == null)
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{
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// Add a gentle fallback so script doesn't null-ref
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_anim = _model.AddComponent<Animator>();
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// NOTE: You still need to assign a RuntimeAnimatorController to this Animator in the prefab/inspector
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}
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}
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public void RandomizeStartAnimationFrame()
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{
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// Randomize normalized time (0..1) for current/idle state
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string state = string.IsNullOrEmpty(_spawner._flapAnimation) ? _spawner._idleAnimation : _spawner._flapAnimation;
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if (!string.IsNullOrEmpty(state))
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{
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float n = Random.value; // normalized
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_anim.Play(state, 0, n);
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}
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}
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public void InitAvoidanceValues()
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{
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_avoidValue = Random.Range(.3f, .1f);
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if (_spawner._birdAvoidDistanceMax != _spawner._birdAvoidDistanceMin)
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{
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_avoidDistance = Random.Range(_spawner._birdAvoidDistanceMax, _spawner._birdAvoidDistanceMin);
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return;
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}
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_avoidDistance = _spawner._birdAvoidDistanceMin;
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}
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public void SetRandomScale()
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{
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float sc = Random.Range(_spawner._minScale, _spawner._maxScale);
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_thisT.localScale = new Vector3(sc, sc, sc);
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}
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// Soar Timeout - Limits how long a bird can soar
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public void SoarTimeLimit()
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{
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if (this._soar && _spawner._soarMaxTime > 0)
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{
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if (_soarTimer > _spawner._soarMaxTime)
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{
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this.Flap();
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_soarTimer = 0.0f;
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}
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else
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{
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_soarTimer += _spawner._newDelta;
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}
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}
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}
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public void CheckForDistanceToWaypoint()
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{
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if (!_landing && (_thisT.position - _wayPoint).magnitude < _spawner._waypointDistance + _stuckCounter)
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{
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Wander(0.0f);
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_stuckCounter = 0.0f;
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}
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else if (!_landing)
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{
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_stuckCounter += _spawner._newDelta;
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}
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else
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{
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_stuckCounter = 0.0f;
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}
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}
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public void RotationBasedOnWaypointOrAvoidance()
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{
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Vector3 lookit = _wayPoint - _thisT.position;
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if (_targetSpeed > -1 && lookit != Vector3.zero)
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{
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Quaternion rotation = Quaternion.LookRotation(lookit);
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_thisT.rotation = Quaternion.Slerp(_thisT.rotation, rotation, _spawner._newDelta * _damping);
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}
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if (_spawner._childTriggerPos)
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{
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if ((_thisT.position - _spawner._posBuffer).magnitude < 1)
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{
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_spawner.SetFlockRandomPosition();
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}
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}
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_speed = Mathf.Lerp(_speed, _targetSpeed, _spawner._newDelta * 2.5f);
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// Position forward based on object rotation
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if (_move)
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{
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_thisT.position += _thisT.forward * _speed * _spawner._newDelta;
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if (_avoid && _spawner._birdAvoid)
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Avoidance();
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}
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}
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public bool Avoidance()
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{
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RaycastHit hit = new RaycastHit();
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Vector3 fwd = _modelT.forward;
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bool r = false;
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Quaternion rot = Quaternion.identity;
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Vector3 rotE = Vector3.zero;
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Vector3 pos = Vector3.zero;
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pos = _thisT.position;
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rot = _thisT.rotation;
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rotE = _thisT.rotation.eulerAngles;
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if (Physics.Raycast(_thisT.position, fwd + (_modelT.right * _avoidValue), out hit, _avoidDistance, _spawner._avoidanceMask))
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{
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rotE.y -= _spawner._birdAvoidHorizontalForce * _spawner._newDelta * _damping;
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rot.eulerAngles = rotE;
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_thisT.rotation = rot;
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r = true;
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}
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else if (Physics.Raycast(_thisT.position, fwd + (_modelT.right * -_avoidValue), out hit, _avoidDistance, _spawner._avoidanceMask))
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{
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rotE.y += _spawner._birdAvoidHorizontalForce * _spawner._newDelta * _damping;
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rot.eulerAngles = rotE;
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_thisT.rotation = rot;
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r = true;
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}
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if (_spawner._birdAvoidDown && !this._landing && Physics.Raycast(_thisT.position, -Vector3.up, out hit, _avoidDistance, _spawner._avoidanceMask))
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{
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rotE.x -= _spawner._birdAvoidVerticalForce * _spawner._newDelta * _damping;
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rot.eulerAngles = rotE;
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_thisT.rotation = rot;
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pos.y += _spawner._birdAvoidVerticalForce * _spawner._newDelta * .01f;
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_thisT.position = pos;
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r = true;
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}
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else if (_spawner._birdAvoidUp && !this._landing && Physics.Raycast(_thisT.position, Vector3.up, out hit, _avoidDistance, _spawner._avoidanceMask))
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{
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rotE.x += _spawner._birdAvoidVerticalForce * _spawner._newDelta * _damping;
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rot.eulerAngles = rotE;
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_thisT.rotation = rot;
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pos.y -= _spawner._birdAvoidVerticalForce * _spawner._newDelta * .01f;
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_thisT.position = pos;
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r = true;
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}
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return r;
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}
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public void LimitRotationOfModel()
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{
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// Keep model's local X tilt limited; original behavior retained
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Quaternion rot = Quaternion.identity;
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Vector3 rotE = Vector3.zero;
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rot = _modelT.localRotation;
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rotE = rot.eulerAngles;
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if (((_soar && _spawner._flatSoar) || (_spawner._flatFly && !_soar)) && _wayPoint.y > _thisT.position.y || _landing)
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{
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rotE.x = Mathf.LerpAngle(_modelT.localEulerAngles.x, -_thisT.localEulerAngles.x, _spawner._newDelta * 1.75f);
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rot.eulerAngles = rotE;
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_modelT.localRotation = rot;
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}
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else
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{
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rotE.x = Mathf.LerpAngle(_modelT.localEulerAngles.x, 0.0f, _spawner._newDelta * 1.75f);
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rot.eulerAngles = rotE;
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_modelT.localRotation = rot;
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}
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}
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public void Wander(float delay)
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{
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if (!_landing)
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{
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_damping = Random.Range(_spawner._minDamping, _spawner._maxDamping);
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_targetSpeed = Random.Range(_spawner._minSpeed, _spawner._maxSpeed);
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Invoke("SetRandomMode", delay);
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}
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}
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public void SetRandomMode()
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{
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CancelInvoke("SetRandomMode");
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if (!_dived && Random.value < _spawner._soarFrequency)
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{
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Soar();
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}
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else if (!_dived && Random.value < _spawner._diveFrequency)
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{
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Dive();
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}
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else
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{
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Flap();
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}
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}
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public void Flap()
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{
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if (_move)
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{
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PlayStateSafe(_spawner._flapAnimation, 0.5f);
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_soar = false;
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animationSpeed();
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_wayPoint = findWaypoint();
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_dived = false;
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}
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}
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public Vector3 findWaypoint()
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{
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Vector3 t = Vector3.zero;
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t.x = Random.Range(-_spawner._spawnSphere, _spawner._spawnSphere) + _spawner._posBuffer.x;
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t.z = Random.Range(-_spawner._spawnSphereDepth, _spawner._spawnSphereDepth) + _spawner._posBuffer.z;
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t.y = Random.Range(-_spawner._spawnSphereHeight, _spawner._spawnSphereHeight) + _spawner._posBuffer.y;
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return t;
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}
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public void Soar()
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{
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if (_move)
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{
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PlayStateSafe(_spawner._soarAnimation, 1.5f);
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_wayPoint = findWaypoint();
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_soar = true;
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}
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}
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public void Dive()
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{
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// Use soar animation (as original) then offset waypoint down
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if (!string.IsNullOrEmpty(_spawner._soarAnimation))
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{
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PlayStateSafe(_spawner._soarAnimation, 1.5f);
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}
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// Original per-clip speed tweak removed (Animator replacement)
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_wayPoint = findWaypoint();
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_wayPoint.y -= _spawner._diveValue;
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_dived = true;
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}
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public void animationSpeed()
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{
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// Global animator speed to imitate original random clip speeds
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if (!_dived && !_landing)
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{
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_anim.speed = Random.Range(_spawner._minAnimationSpeed, _spawner._maxAnimationSpeed);
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}
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else
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{
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_anim.speed = _spawner._maxAnimationSpeed;
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}
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}
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// --- Helper to safely crossfade/enter a state by name on Animator ---
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void PlayStateSafe(string stateName, float crossfadeDuration)
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{
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if (_anim == null || string.IsNullOrEmpty(stateName)) return;
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// CrossFade expects a hashed state; but using name is fine (Unity hashes internally)
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if (crossfadeDuration > 0f)
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_anim.CrossFadeInFixedTime(stateName, crossfadeDuration);
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else
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_anim.Play(stateName, 0, 0f);
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}
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}
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