Cielonos/Assets/Scripts/MainGame/Effects/VFX/Assistance/TransformAdjustment.cs

using System;
using Lean.Pool;
using Sirenix.OdinInspector;
using UnityEngine;
using UnityEngine.Serialization;

namespace Cielonos.MainGame
{
    public class TransformAdjustment : MonoBehaviour, IPoolable
    {
        [Required] public VFXObject vfxObject;
        [Required] public Transform targetTransform;
        
        [Tooltip("在特效生成时是否立刻启用渐变，注意，必须通过对象池生成。\n为true时，渐变效果从默认transform开始，否则需要调用EnableFade方法启用渐变")]
        public bool playOnSpawn = true;
        
        [Tooltip("生命周期")] public float life = 1f;
        
        [Tooltip("是否应用本地位置变化")] public bool applyLocalPosition = true;
        [Tooltip("初始位置")] [ShowIf("applyLocalPosition")] public Vector3 initialLocalPosition;
        [Tooltip("目标位置")] [ShowIf("applyLocalPosition")] public Vector3 targetLocalPosition = Vector3.zero;
        [Tooltip("X位置曲线")] [ShowIf("applyLocalPosition")] public AnimationCurve positionCurveX;
        [Tooltip("Y位置曲线")] [ShowIf("applyLocalPosition")] public AnimationCurve positionCurveY;
        [Tooltip("Z位置曲线")] [ShowIf("applyLocalPosition")] public AnimationCurve positionCurveZ;
        
        [Tooltip("是否应用本地旋转变化")] public bool applyLocalRotation = false;
        [Tooltip("初始旋转")][ShowIf("applyLocalRotation")]public Vector3 initialEulerAngles;
        [Tooltip("初始旋转")][ShowIf("applyLocalRotation")]  public Vector3 targetEulerAngles = Vector3.zero;
        [Tooltip("X旋转曲线")][ShowIf("applyLocalRotation")]  public AnimationCurve rotationCurveX;
        [Tooltip("Y旋转曲线")][ShowIf("applyLocalRotation")]  public AnimationCurve rotationCurveY;
        [Tooltip("Z旋转曲线")][ShowIf("applyLocalRotation")] public AnimationCurve rotationCurveZ;
        
        [Tooltip("是否应用本地缩放变化")] public bool applyLocalScale = false;
        [Tooltip("初始缩放")][ShowIf("applyLocalScale")] public Vector3 initialLocalScale;
        [Tooltip("目标缩放")][ShowIf("applyLocalScale")]  public Vector3 targetLocalScale = Vector3.one;
        [Tooltip("X缩放曲线")][ShowIf("applyLocalScale")]  public AnimationCurve scaleCurveX;
        [Tooltip("Y缩放曲线")][ShowIf("applyLocalScale")]  public AnimationCurve scaleCurveY;
        [Tooltip("Z缩放曲线")][ShowIf("applyLocalScale")] public AnimationCurve scaleCurveZ;
        
        [HideInEditorMode]
        [SerializeField]
        private bool isFading;
        [HideInEditorMode]
        [SerializeField]
        private float time;
        
        private void Reset()
        {
            targetTransform = transform;
            positionCurveX = AnimationCurve.EaseInOut(0, 0, 1, 1);
            positionCurveY = AnimationCurve.EaseInOut(0, 0, 1, 1);
            positionCurveZ = AnimationCurve.EaseInOut(0, 0, 1, 1);
            rotationCurveX = AnimationCurve.EaseInOut(0, 0, 1, 1);
            rotationCurveY = AnimationCurve.EaseInOut(0, 0, 1, 1);
            rotationCurveZ = AnimationCurve.EaseInOut(0, 0, 1, 1);
            scaleCurveX = AnimationCurve.EaseInOut(0, 0, 1, 1);
            scaleCurveY = AnimationCurve.EaseInOut(0, 0, 1, 1);
            scaleCurveZ = AnimationCurve.EaseInOut(0, 0, 1, 1);
        }
        
        public void OnSpawn()
        {
            if (playOnSpawn && !isFading)
            {
                Enable(targetLocalPosition, targetEulerAngles, targetLocalScale);
            }
        }

        public void OnDespawn()
        {
            isFading = false;
        }
        
        public void Enable(Vector3 position, Vector3 eulerAngles, Vector3 scale)
        {
            if (targetTransform == null) throw new NullReferenceException("Target Transform is null");

            time = 0;
            isFading = true;
            if (applyLocalPosition)
            {
                this.targetLocalPosition = position;
                targetTransform.localPosition = initialLocalPosition;
            }
            
            if (applyLocalRotation)
            {
                this.targetEulerAngles = eulerAngles;
                targetTransform.localEulerAngles = initialEulerAngles;
            }
            
            if (applyLocalScale)
            {
                this.targetLocalScale = scale;
                targetTransform.localScale = initialLocalScale;
            }
        }
        
        void Update()
        {
            if (!isFading) return;

            time += vfxObject?.DeltaTime ?? Time.deltaTime;
            
            if (applyLocalPosition)
            {
                targetTransform.localPosition = initialLocalPosition + new Vector3(
                    (targetLocalPosition.x - initialLocalPosition.x) * positionCurveX.Evaluate(time / life),
                    (targetLocalPosition.y - initialLocalPosition.y) * positionCurveY.Evaluate(time / life),
                    (targetLocalPosition.z - initialLocalPosition.z) * positionCurveZ.Evaluate(time / life)
                );
            }

            if (applyLocalRotation)
            {
                targetTransform.localEulerAngles = initialEulerAngles + new Vector3(
                    (targetEulerAngles.x - initialEulerAngles.x) * rotationCurveX.Evaluate(time / life),
                    (targetEulerAngles.y - initialEulerAngles.y) * rotationCurveY.Evaluate(time / life),
                    (targetEulerAngles.z - initialEulerAngles.z) * rotationCurveZ.Evaluate(time / life)
                );
            }
            
            if (applyLocalScale)
            {
                targetTransform.localScale = initialLocalScale + new Vector3(
                    (targetLocalScale.x - initialLocalScale.x) * scaleCurveX.Evaluate(time / life),
                    (targetLocalScale.y - initialLocalScale.y) * scaleCurveY.Evaluate(time / life),
                    (targetLocalScale.z - initialLocalScale.z) * scaleCurveZ.Evaluate(time / life)
                );
            }
            
            if (time > life)
            {
                time = 0;
                isFading = false;
            }
        }
    }
}