Cielonos/Assets/Scripts/MainGame/Base/FunctionalAnimation/Payloads/SetRootAdsorptionAdjustment.cs

using System;
using Cielonos.MainGame.Characters;
using Sirenix.OdinInspector;
using SLSUtilities.FunctionalAnimation;
using UnityEngine;

namespace Cielonos.MainGame.FunctionalAnimation
{
    public class SetRootAdsorptionAdjustment
    {
        [Serializable]
        public class Once : FuncAnimPayloadBase<bool>
        {
            [InfoBox("这个payload只能在运行时由代码调用，不能直接放在动画事件里使用")]
            private CharacterBase target;
            private float enableMinDistance;

            public Once(CharacterBase target, float enableMinDistance)
            {
                this.eventName = "SetRootAdsorptionAdjustment_Once";
                this.target = target;
                this.enableMinDistance = enableMinDistance;
            }

            public override bool Invoke()
            {
                return Adsorption(target, character, enableMinDistance);
            }
        }
        
        [Serializable]
        public class Keep : FuncAnimPayloadBase
        {
            [InfoBox("这个payload只能在运行时由代码调用，不能直接放在动画事件里使用")]
            private CharacterBase target;
            private float enableMinDistance;
            
            public Keep(CharacterBase target, float enableMinDistance)
            {
                this.eventName = "SetRootAdsorptionAdjustment_Keep";
                this.target = target;
                this.enableMinDistance = enableMinDistance;
            }
            
            public override void Invoke()
            {
                Adsorption(target, character, enableMinDistance);
            }
        }
        
        private static bool Adsorption(CharacterBase target, CharacterBase character, float enableMinDistance)
        {
            if (target == null || character == null)
            {
                return false;
            }

            Vector3 centerPointPosition = character.centerPoint.position;
            Vector3 adsorptionVector;

            /*if (target.collisionController.mainCollider.enabled)
            {
                adsorptionVector = target.collisionController.mainCollider.ClosestPoint(centerPointPosition) - centerPointPosition;
            }
            else*/
            {
                float targetRadius = target.collisionSc.useCharacterController
                    ? target.collisionSc.characterController.radius
                    : target.collisionSc.mainColliderRadius;
                Vector3 adsorptionDirection = (target.centerPoint.position - centerPointPosition).normalized;
                adsorptionVector = (target.centerPoint.position - adsorptionDirection * targetRadius) - centerPointPosition;
                adsorptionVector *= (adsorptionVector.magnitude - (enableMinDistance * 0.5f)) / adsorptionVector.magnitude;
            }

            adsorptionVector.y = 0;
            
            if (adsorptionVector.magnitude <= enableMinDistance)
            {
                character.animationSc.isDisablingMoveXZ = true;
                return true; //已经在攻击范围内
            }

            character.animationSc.isDisablingMoveXZ = false;
            return false; //在攻击范围之外，RootMotion生效
        }
    }
}