122 lines
5.1 KiB
C#
122 lines
5.1 KiB
C#
using Cielonos.MainGame.Characters;
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using SLSFramework.General;
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using UnityEngine;
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namespace Cielonos.MainGame
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{
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public partial class NormalArea : AttackAreaBase
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{
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private void OnTriggerStay(Collider other)
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{
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HitCharacter(other, default);
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}
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public override void HitCharacter(Collider characterCollider, Vector3 hitPosition)
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{
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if (!isEnabling)
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{
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return;
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}
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Debug.Log($"{characterCollider.gameObject.name} Hit");
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CharacterBase targetCharacter = characterCollider.GetComponentInParent<CharacterBase>();
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if (targetCharacter == creator) return;
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if (targetCharacter != null)// && targetCharacter.HasAnyTag(targetTagList))
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{
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if (hitSm.checkedObjects.Contains(targetCharacter.gameObject))
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{
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return;
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}
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hitSm.AddCheckedObject(targetCharacter.gameObject);
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HitOnTarget(characterCollider, areaCollider.ClosestPoint(targetCharacter.flexibleCenterPoint.position));
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}
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}
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}
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public partial class NormalArea
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{
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protected override GameObject GenerateHitEffect(CharacterBase target, Collider hitCollider, Vector3 hitPosition)
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{
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GameObject hitEffect = base.GenerateHitEffect(target, hitCollider, hitPosition);
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Vector3 hitEffectDirection = GetHitEffectDirection(hitCollider.ClosestPoint(transform.position));
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hitEffect.transform.rotation = Quaternion.LookRotation(hitEffectDirection);
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return hitEffect;
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}
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}
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public partial class NormalArea
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{
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private Vector3 SetHitEffectEulerAnglesByNormal(Vector3 hitPosition, Vector3 frontTangent)
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{
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Vector3 frontCircleNormal = Vector3.up;
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Vector3 hitCircleNormal = transform.up;
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Quaternion circleNormalRotation = Quaternion.FromToRotation(frontCircleNormal, hitCircleNormal);
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Vector3 frontDirection = Vector3.forward;
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Quaternion directionToTangentRotation = Quaternion.FromToRotation(frontDirection, frontTangent);
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Vector3 hitDirection = (hitPosition - creator.flexibleCenterPoint.position).normalized;
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hitDirection.y = 0;
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hitDirection = directionToTangentRotation * hitDirection;
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hitDirection = circleNormalRotation * hitDirection;
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return hitDirection;
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}
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/// <summary>
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/// 计算命中特效应朝向的方向 (Z轴)。
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/// 这个方向是刀光在命中点的旋转切线方向。
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/// </summary>
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/// <param name="hitPosition">世界空间中的命中点</param>
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/// <returns>一个标准化的方向向量 (world space)</returns>
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private Vector3 GetHitEffectDirection(Vector3 hitPosition)
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{
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// 1. 获取刀光旋转的中心点
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// (假设 creator.flexibleCenterPoint.position 是旋转中心)
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Vector3 rotationCenter = creator.flexibleCenterPoint.position;
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// 2. 获取刀光旋转的法线 (旋转轴)
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// 根据描述, 这是刀光 prefab 的 Y 轴正方向
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Vector3 rotationNormal = transform.up; // 刀光的 local Y 轴 (in world space)
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// 3. 计算从中心点到命中点的半径向量
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Vector3 radiusVector = hitPosition - rotationCenter;
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// 4. (重要) 将半径向量投影到旋转平面上.
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// 这是为了确保我们得到一个与旋转轴垂直的向量,
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// 防止 hitPosition 轻微偏离平面导致计算错误.
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// 你的代码中 hitDirection.y = 0 是在错误的平面上投影.
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Vector3 radiusOnPlane = Vector3.ProjectOnPlane(radiusVector, rotationNormal);
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// 5. 计算切线.
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// 需求: "Y轴正方向顺时针旋转"
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// 在 Unity (左手坐标系) 中:
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// - 轴 (Normal) = Y (0, 1, 0)
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// - 半径 (Radius) = X (1, 0, 0)
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// - 顺时针旋转 (Clockwise) 是从 +X 转向 -Z.
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//
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// - Vector3.Cross(rotationNormal, radiusOnPlane)
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// = Cross((0,1,0), (1,0,0)) = (0, 0, -1) (-> 指向 -Z)
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// - 这正是我们需要的顺时针切线方向.
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Vector3 tangentDirection = Vector3.Cross(rotationNormal, radiusOnPlane);
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// 6. (安全检查) 处理命中点在中心的情况
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// 如果命中点非常接近旋转中心, 半径为0, 叉乘结果也为0.
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// .normalized 会返回 NaN, 导致 LookRotation 失败.
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if (tangentDirection.sqrMagnitude < 0.0001f)
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{
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// 此时没有明确的 "切线".
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// 我们可以返回刀光的 "forward" (Z轴) 或 "right" (X轴) 作为备用.
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// 让我们使用刀光的 X 轴 (即刀光"刀刃"的初始方向).
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return transform.right;
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}
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// 7. 返回标准化的切线方向
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return tangentDirection.normalized;
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}
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}
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} |