188 lines
7.6 KiB
C#
188 lines
7.6 KiB
C#
using Opsive.BehaviorDesigner.Runtime;
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using Opsive.BehaviorDesigner.Runtime.Tasks;
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using Opsive.GraphDesigner.Runtime.Variables;
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using Opsive.Shared.Utility;
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using UnityEngine;
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using UnityEngine.AI;
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namespace Cielonos.MainGame.Characters.AI
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{
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[Description("计算跳跃的目标落点坐标，并将计算结果写入行为树的 Vector3 变量中。支持多种跳跃策略（接近、后撤、侧闪、出死角等）。")]
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[Category("Cielonos/Movement")]
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public class CalculateJumpTarget : AutomataActionBase
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{
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public enum JumpStrategy
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{
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[Tooltip("快速接近玩家：直接指向玩家位置（或预测位置）。")]
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CloseIn,
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[Tooltip("战术后撤：向自身后方跳跃拉开距离，用于准备释放远程攻击。")]
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Retreat,
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[Tooltip("侧向侧袭（Flanking）：跳到玩家侧方90度，用于绕过正面防守/激光。")]
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Flank,
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[Tooltip("挣脱死角（Escape Corner）：当靠近场景边缘/墙壁时，计算指向场地中央的跳跃点。")]
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EscapeCorner,
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[Tooltip("避险跳跃（Escape Hazard）：远离最近的玩家危险区域/地裂伤害。")]
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EscapeHazard,
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[Tooltip("原地原跳（Self Slam）：以自身当前位置为中心，通常用于大招落地原地震击。")]
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SelfSlam
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}
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[Header("Strategy Config")]
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[Tooltip("跳跃落点策略模式")]
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public JumpStrategy strategy = JumpStrategy.CloseIn;
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[Tooltip("输出的目标位置变量名称（写入行为树，供 ManualMove 读取）。")]
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public SharedVariable<Vector3> jumpLandPosition = new SharedVariable<Vector3> { Value = Vector3.zero };
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[Header("Distance Parameters")]
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[Tooltip("后撤跳跃的距离（米）。")]
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public float retreatDistance = 8f;
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[Tooltip("接近跳跃时，期望落在距离玩家多少米的位置（用于巨斧攻击范围适配）。")]
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public float closeInArrivalRadius = 2.0f;
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[Tooltip("战斗场地/房间的中心点。当从死角需要跃回场地中央时使用。")]
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public SharedVariable<Vector3> arenaCenter = new SharedVariable<Vector3> { Value = Vector3.zero };
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[Tooltip("侧向跳跃相对于玩家的偏置距离（米）。")]
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public float flankDistance = 5f;
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[Tooltip("侧向跳跃的方向选择：1 = 玩家右侧，-1 = 玩家左侧，0 = 随机。")]
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public int flankDirection = 0;
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[Header("Prediction")]
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[Tooltip("是否在 CloseIn 模式下启用玩家位置预测？")]
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public bool usePlayerPrediction = true;
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[Tooltip("预测玩家未来的提前量时间（秒）。")]
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public float predictionLeadTime = 1.0f;
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[Header("NavMesh Validation")]
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[Tooltip("是否对计算出的落点在 NavMesh 上进行合法性采样？（防止跳出地图边缘/掉落悬崖）")]
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public bool validateOnNavMesh = true;
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[Tooltip("NavMesh 采样半径。")]
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public float navMeshSampleRadius = 2f;
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public override TaskStatus OnUpdate()
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{
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if (self == null || self.player == null)
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return TaskStatus.Failure;
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Vector3 computedTarget = self.transform.position;
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Vector3 playerPos = self.player.transform.position;
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Vector3 selfPos = self.transform.position;
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switch (strategy)
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{
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case JumpStrategy.CloseIn:
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Vector3 basePlayerPos = usePlayerPrediction
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? self.PredictPlayerPosition(predictionLeadTime)
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: playerPos;
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Vector3 toPlayer = basePlayerPos - selfPos;
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toPlayer.y = 0f;
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if (toPlayer.magnitude > closeInArrivalRadius)
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{
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// 敌人跳到连线与设定半径的交点上
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computedTarget = basePlayerPos - toPlayer.normalized * closeInArrivalRadius;
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}
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else
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{
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computedTarget = basePlayerPos;
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}
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break;
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case JumpStrategy.Retreat:
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// 计算 Boss 朝向的后方
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Vector3 backDir = -self.transform.forward;
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backDir.y = 0f;
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backDir.Normalize();
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computedTarget = selfPos + backDir * retreatDistance;
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break;
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case JumpStrategy.Flank:
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// 计算从玩家指向 Boss 的方向
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Vector3 toBoss = selfPos - playerPos;
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toBoss.y = 0f;
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toBoss.Normalize();
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// 计算垂直的切线方向 (左右)
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Vector3 tangent = new Vector3(-toBoss.z, 0f, toBoss.x); // 玩家右侧
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int dir = flankDirection;
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if (dir == 0)
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{
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dir = Random.value > 0.5f ? 1 : -1;
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}
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computedTarget = playerPos + tangent * (flankDistance * dir);
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break;
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case JumpStrategy.EscapeCorner:
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Vector3 toCenter = arenaCenter.Value - selfPos;
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toCenter.y = 0f;
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toCenter.Normalize();
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computedTarget = selfPos + toCenter * retreatDistance;
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break;
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case JumpStrategy.EscapeHazard:
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// 默认向远离玩家方向跳跃，作为基础避险
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Vector3 awayDir = selfPos - playerPos;
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awayDir.y = 0f;
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awayDir.Normalize();
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computedTarget = selfPos + awayDir * retreatDistance;
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break;
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case JumpStrategy.SelfSlam:
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computedTarget = selfPos;
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break;
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}
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// 对计算出的落点在 NavMesh 上进行合法性采样，防止跳出地图
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if (validateOnNavMesh)
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{
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if (NavMesh.SamplePosition(computedTarget, out NavMeshHit hit, navMeshSampleRadius, NavMesh.AllAreas))
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{
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computedTarget = hit.position;
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}
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else
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{
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// 如果采样失败，尝试向玩家位置收缩
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Vector3 dirToPlayer = playerPos - computedTarget;
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if (NavMesh.SamplePosition(computedTarget + dirToPlayer * 0.5f, out hit, navMeshSampleRadius, NavMesh.AllAreas))
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{
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computedTarget = hit.position;
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}
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}
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}
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// 写入行为树变量与调试缓存
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debugComputedTarget = computedTarget;
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jumpLandPosition.SetValue(computedTarget);
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return TaskStatus.Success;
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}
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private Vector3 debugComputedTarget;
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protected override void OnDrawGizmos()
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{
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#if UNITY_EDITOR
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if (debugComputedTarget != Vector3.zero)
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{
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Gizmos.color = Color.cyan;
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Gizmos.DrawWireSphere(debugComputedTarget, 0.4f);
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Gizmos.color = new Color(0.2f, 0.8f, 1.0f, 0.25f);
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Gizmos.DrawSphere(debugComputedTarget, 0.4f);
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if (self != null)
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{
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Gizmos.color = Color.cyan;
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Gizmos.DrawLine(self.transform.position, debugComputedTarget);
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}
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}
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#endif
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}
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}
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}
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