287 lines
9.4 KiB
C#
287 lines
9.4 KiB
C#
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using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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using UnityEngine.Events;
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using NeoFPS.Constants;
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using NeoSaveGames.Serialization;
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using NeoSaveGames;
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using UnityEngine.Serialization;
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namespace NeoFPS
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{
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[HelpURL("https://docs.neofps.com/manual/weaponsref-mb-meleeweapon.html")]
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[RequireComponent(typeof(AudioSource))]
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public class MeleeWeapon : BaseMeleeWeapon
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{
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[Header("Melee Properties")]
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[SerializeField, Tooltip("The damage the weapon does.")]
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private float m_Damage = 50f;
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[SerializeField, Tooltip("The force to impart on the hit object. Requires either a [Rigidbody][unity-rigidbody] or an impact handler on the hit object.")]
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private float m_ImpactForce = 15f;
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[SerializeField, Tooltip("The layers the attack will collide with.")]
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private LayerMask m_Layers = PhysicsFilter.Masks.BulletBlockers;
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[SerializeField, Tooltip("Should the attack be tested against trigger colliders.")]
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private bool m_QueryTriggerColliders = false;
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[SerializeField, Tooltip("The range that the melee weapon can reach.")]
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private float m_Range = 1f;
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[SerializeField, Tooltip("The delay from starting the attack to checking for an impact. Should be synced with the striking point in the animation.")]
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private float m_Delay = 0.6f;
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[SerializeField, Tooltip("The recovery time after a hit.")]
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private float m_RecoverTime = 1f;
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[Header("Melee Animation")]
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[SerializeField, AnimatorParameterKey("m_Animator", AnimatorControllerParameterType.Trigger), Tooltip("The animation trigger for the attack animation.")]
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private string m_TriggerAttack = "Attack";
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[SerializeField, AnimatorParameterKey("m_Animator", AnimatorControllerParameterType.Trigger), Tooltip("The animation trigger for the attack hit animation.")]
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private string m_TriggerAttackHit = "AttackHit";
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[SerializeField, AnimatorParameterKey("m_Animator", AnimatorControllerParameterType.Bool), Tooltip("The animation bool parameter for the block animation."), FormerlySerializedAs("m_TriggerBlock")]
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private string m_BoolBlock = "Block";
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[Header("Melee Audio")]
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[SerializeField, Tooltip("The audio clip when attacking.")]
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private AudioClip m_AudioAttack = null;
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[SerializeField, Tooltip("The audio clip when bringing the weapon into block position.")]
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private AudioClip m_AudioBlockRaise = null;
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[SerializeField, Tooltip("The audio clip when bringing the weapon out of block position.")]
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private AudioClip m_AudioBlockLower = null;
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private static List<IDamageHandler> s_DamageHandlers = new List<IDamageHandler>(4);
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private int m_AnimHashBlock = 0;
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private int m_AnimHashAttack = 0;
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private int m_AnimHashAttackHit = 0;
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private IMeleeHitExtension[] m_HitExtensions = null;
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private float m_CooldownTimer = 0f;
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private float m_DelayTimer = 0f;
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public enum HitDetectType
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{
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Raycast,
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Spherecast,
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Custom
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}
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#if UNITY_EDITOR
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protected override void OnValidate ()
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{
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base.OnValidate();
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// Limit values
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if (m_Damage < 0f)
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m_Damage = 0f;
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if (m_ImpactForce < 0f)
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m_ImpactForce = 0f;
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if (m_Delay < 0f)
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m_Delay = 0f;
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if (m_RecoverTime < 0f)
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m_RecoverTime = 0f;
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m_Range = Mathf.Clamp(m_Range, 0.1f, 5f);
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}
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#endif
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protected override void Awake ()
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{
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base.Awake();
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m_AnimHashBlock = Animator.StringToHash (m_BoolBlock);
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m_AnimHashAttack = Animator.StringToHash (m_TriggerAttack);
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m_AnimHashAttackHit = Animator.StringToHash (m_TriggerAttackHit);
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m_HitExtensions = GetComponents<IMeleeHitExtension>();
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}
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protected override void OnDisable()
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{
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base.OnDisable();
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blocking = false;
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// Clear coroutines
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if (m_CooldownCoroutine != null)
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{
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StopCoroutine(m_CooldownCoroutine);
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m_CooldownCoroutine = null;
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}
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if (m_DoRaycastCoroutine != null)
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{
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StopCoroutine(m_DoRaycastCoroutine);
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m_DoRaycastCoroutine = null;
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}
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}
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public override void PrimaryPress ()
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{
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if (!blocking && m_CooldownCoroutine == null)
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{
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animator.SetTrigger (m_AnimHashAttack);
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m_DoRaycastCoroutine = StartCoroutine (DoRaycast (m_Delay));
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m_CooldownCoroutine = StartCoroutine (Cooldown (m_RecoverTime));
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if (m_AudioAttack != null)
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audioSource.PlayOneShot(m_AudioAttack);
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attacking = true;
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}
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}
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public override void PrimaryRelease()
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{
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// Current implementation are all one-shots
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}
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public override void SecondaryPress()
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{
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blocking = true;
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}
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public override void SecondaryRelease()
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{
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blocking = false;
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}
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Coroutine m_CooldownCoroutine = null;
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IEnumerator Cooldown (float timer)
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{
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m_CooldownTimer = timer;
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while (m_CooldownTimer > 0f)
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{
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yield return null;
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m_CooldownTimer -= Time.deltaTime;
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}
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attacking = false;
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m_CooldownCoroutine = null;
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}
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Coroutine m_DoRaycastCoroutine = null;
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IEnumerator DoRaycast (float timer)
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{
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m_DelayTimer = timer;
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while (m_DelayTimer > 0f)
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{
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yield return null;
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m_DelayTimer -= Time.deltaTime;
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}
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Vector3 direction = transform.forward;
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// Get root game object to prevent impacts with body
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Transform ignoreRoot = null;
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if (wielder != null)
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ignoreRoot = wielder.gameObject.transform;
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RaycastHit hit;
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if (PhysicsExtensions.RaycastNonAllocSingle (
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new Ray (transform.position, direction),
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out hit,
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m_Range,
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m_Layers,
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ignoreRoot,
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m_QueryTriggerColliders ? QueryTriggerInteraction.Collide : QueryTriggerInteraction.Ignore
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))
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{
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OnMeleeHit(hit, direction);
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}
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m_DoRaycastCoroutine = null;
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}
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protected virtual void OnMeleeHit(RaycastHit hit, Vector3 attackDirection)
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{
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// Show effect
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SurfaceManager.ShowBulletHit(hit, attackDirection, 1f, hit.rigidbody != null);
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// Apply damage
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hit.transform.GetComponents(s_DamageHandlers);
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for (int i = 0; i < s_DamageHandlers.Count; ++i)
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s_DamageHandlers[i].AddDamage(m_Damage, hit, this);
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s_DamageHandlers.Clear();
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// Apply force
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if (hit.rigidbody != null)
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hit.rigidbody.AddForceAtPosition(attackDirection * m_ImpactForce, hit.point, ForceMode.Impulse);
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else
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{
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IImpactHandler impactHandler = hit.transform.GetComponent<IImpactHandler>();
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if (impactHandler != null)
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impactHandler.HandlePointImpact(hit.point, attackDirection * m_ImpactForce);
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}
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// Trigger hit animation
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animator.SetTrigger(m_AnimHashAttackHit);
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// Process hit extensions
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for (int i = 0; i < m_HitExtensions.Length; ++i)
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m_HitExtensions[i].OnMeleeHit(hit);
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}
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protected override void OnBlockStateChange(bool to)
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{
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base.OnBlockStateChange(to);
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// Set animator parameter
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animator.SetBool(m_AnimHashBlock, to);
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// Play audio
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if (to)
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{
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if (m_AudioBlockRaise != null)
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audioSource.PlayOneShot(m_AudioBlockRaise);
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}
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else
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{
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if (m_AudioBlockLower != null)
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audioSource.PlayOneShot(m_AudioBlockLower);
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}
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}
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#region INeoSerializableComponent IMPLEMENTATION
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private static readonly NeoSerializationKey k_CooldownKey = new NeoSerializationKey("cooldown");
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private static readonly NeoSerializationKey k_DelayTimerKey = new NeoSerializationKey("delayTimer");
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public override void WriteProperties(INeoSerializer writer, NeoSerializedGameObject nsgo, SaveMode saveMode)
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{
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base.WriteProperties(writer, nsgo, saveMode);
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if (saveMode == SaveMode.Default)
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{
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// Write coroutines if relevant
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if (m_CooldownCoroutine != null)
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writer.WriteValue(k_CooldownKey, m_CooldownTimer);
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if (m_DoRaycastCoroutine != null)
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writer.WriteValue(k_DelayTimerKey, m_DelayTimer);
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}
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}
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public override void ReadProperties(INeoDeserializer reader, NeoSerializedGameObject nsgo)
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{
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base.ReadProperties(reader, nsgo);
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// Read and start coroutines if relevant
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float floatResult = 0f;
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if (reader.TryReadValue(k_DelayTimerKey, out floatResult, 0f))
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m_DoRaycastCoroutine = StartCoroutine(DoRaycast(floatResult));
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if (reader.TryReadValue(k_CooldownKey, out floatResult, 0f))
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m_CooldownCoroutine = StartCoroutine(Cooldown(floatResult));
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}
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#endregion
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}
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}
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