using DG.Tweening;
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using System;
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using System.Collections.Generic;
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using TMPro;
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using UnityEngine;
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namespace Core.Health
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{
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/// <summary>
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/// Class to visualizer the health of a damageable
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/// </summary>
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public class HealthVisualizer : MonoBehaviour
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{
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/// <summary>
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/// The DamageableBehaviour that will be used to assign the damageable
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/// </summary>
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[Tooltip("This field does not need to be populated here, it can be set up in code using AssignDamageable")]
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public DamageableBehaviour damageableBehaviour;
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/// <summary>
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/// The object whose X-scale we change to decrease the health bar. Should have a default uniform scale
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/// </summary>
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public Transform healthBar;
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/// <summary>
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/// The object whose X-scale we change to increase the health bar background. Should have a default uniform scale
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/// </summary>
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public Transform backgroundBar;
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/// <summary>
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/// 处理当前的TextMeshPro.
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/// </summary>
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public TextMeshPro textMesh;
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/// <summary>
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/// 替换levelMaterial对应的GameObject.
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/// </summary>
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public GameObject levelQuad;
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public List<Material> levelMaterial;
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/// <summary>
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/// Whether to show this health bar even when it is full
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/// </summary>
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public bool showWhenFull;
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/// <summary>
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/// Camera to face the visualization at
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/// </summary>
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protected Transform m_CameraToFace;
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/// <summary>
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/// Damageable whose health is visualized
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/// </summary>
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protected Damageable m_Damageable;
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/// <summary>
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/// 是否反方的HealthBar.
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/// </summary>
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public bool bOpponent { get; set; }
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//protected int BloodTest = 1234;
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/// <summary>
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/// Updates the visualization of the health
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/// </summary>
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/// <param name="normalizedHealth">Normalized health value</param>
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public void UpdateHealth(float normalizedHealth)
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{
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Vector3 scale = Vector3.one;
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if (healthBar != null)
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{
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//scale.x = normalizedHealth;
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//healthBar.transform.localScale = scale;
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healthBar.transform.DOScaleX(normalizedHealth, 0.3f);
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}
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if (backgroundBar != null)
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{
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scale.x = 1;// - normalizedHealth;
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backgroundBar.transform.localScale = scale;
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}
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// TEST CODE: 测试场景内飘字的效果，可以继续加强这一块的效果.
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if (this.textMesh)
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this.textMesh.text = Math.Floor(m_Damageable.currentHealth).ToString();
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SetVisible((showWhenFull || normalizedHealth < 1.0f) && (!this.bOpponent));
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}
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/// <summary>
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/// Sets the visibility status of this visualiser
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/// </summary>
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public void SetVisible(bool visible)
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{
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gameObject.SetActive(visible);
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}
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/// <summary>
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/// Assigns the damageable, subscribing to the damaged event
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/// </summary>
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/// <param name="damageable">Damageable to assign</param>
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public void AssignDamageable(Damageable damageable)
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{
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if (m_Damageable != null)
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{
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m_Damageable.healthChanged -= OnHealthChanged;
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}
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m_Damageable = damageable;
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m_Damageable.healthChanged += OnHealthChanged;
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}
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/// <summary>
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/// Turns us to face the camera，公告板的算法原理：
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/// </summary>
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protected virtual void Update()
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{
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Vector3 direction = m_CameraToFace.transform.forward;
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transform.forward = -direction;
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}
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/// <summary>
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/// Assigns a damageable if damageableBehaviour is populated
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/// </summary>
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protected virtual void Awake()
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{
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if (damageableBehaviour != null)
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{
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AssignDamageable(damageableBehaviour.configuration);
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}
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}
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/// <summary>
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/// Caches the main camera
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/// </summary>
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protected virtual void Start()
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{
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m_CameraToFace = UnityEngine.Camera.main.transform;
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}
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/// <summary>
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/// 设置血条对应的等级数据。
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/// </summary>
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/// <param name="lvl"></param>
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public void SetHealthLevel( int lvl)
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{
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if (lvl < 0)
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{
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levelQuad.gameObject.SetActive(false);
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return;
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}
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if( this.levelQuad)
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levelQuad.GetComponent<MeshRenderer>().material = levelMaterial[lvl];
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}
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void OnHealthChanged(HealthChangeInfo healthChangeInfo)
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{
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UpdateHealth(m_Damageable.normalisedHealth);
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}
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}
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}
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