612 lines
22 KiB
C#
612 lines
22 KiB
C#
using System;
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using Framework;
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using Gameplay.Area;
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using Gameplay.Unit;
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using Gameplay.Level;
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using Gameplay.Unit.Data;
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using System.Collections.Generic;
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using static Gameplay.Level.LevelData;
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namespace Gameplay.AI
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{
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public static class AIUtils
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{
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private static List<GameUnit> inSightEnemies = new List<GameUnit>(16);
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private static Dictionary<GameUnit, int> inSightDistanceList = new Dictionary<GameUnit, int>(16);
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private static List<GameUnit> enemies = new List<GameUnit>(16);
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private static List<GameUnit> inAttackEnemies = new List<GameUnit>(16);
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private static List<GameUnit> allFriends = new List<GameUnit>(16);
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private static List<GameUnit> friendsInSight = new List<GameUnit>(16);
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private static Dictionary<int, int> patrolDistanceList = new Dictionary<int, int>(64);
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/// <summary>
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/// 寻找锁敌范围内最近的敌人
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/// </summary>
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public static GameUnit FindNearestEnemyInSightDistance(GameUnit owner)
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{
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try
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{
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if (owner == null) return null;
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var map = LevelManager.Instance.CurrentLevel.Map;
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if (map == null) return null;
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inSightEnemies.Clear();
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inSightDistanceList.Clear();
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GameUnitManager.instance.characterManager.SearchEnemies(owner, inSightEnemies);
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var ownerCellIndex = owner.transData?.cellIndex;
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for (var i = 0; i < inSightEnemies.Count; i++)
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{
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var enemy = inSightEnemies[i];
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if (enemy == null || enemy.statusData.isDead)
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{
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continue;
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}
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var enemyCellIndex = enemy.transData?.cellIndex;
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if (!ownerCellIndex.HasValue || !enemyCellIndex.HasValue)
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{
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continue;
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}
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var distance = MapUtils.Distance(map, ownerCellIndex.Value, enemyCellIndex.Value);
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if (distance <= owner.fightData.findEnemyRange)
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{
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inSightDistanceList.Add(enemy, distance);
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}
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}
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if (inSightDistanceList.Count <= 0)
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{
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return null;
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}
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else
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{
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var minDistance = float.MaxValue;
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GameUnit nearestEnemy = null;
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foreach (var pair in inSightDistanceList)
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{
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if (minDistance > pair.Value)
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{
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minDistance = pair.Value;
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nearestEnemy = pair.Key;
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}
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}
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return nearestEnemy;
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}
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}
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catch (Exception e)
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{
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DebugUtil.LogError("AIUtils.FindNearestEnemyInSightDistance error: {0}", e);
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return null;
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}
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}
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/// <summary>
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/// 寻找攻击范围内最近的敌人
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/// </summary>
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public static GameUnit FindNearestEnemyInShootRange(GameUnit owner)
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{
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try
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{
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if (owner == null) return null;
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var map = LevelManager.Instance.CurrentLevel.Map;
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if (map == null) return null;
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inSightEnemies.Clear();
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inSightDistanceList.Clear();
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GameUnitManager.instance.characterManager.SearchEnemies(owner, inSightEnemies);
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var ownerCellIndex = owner.transData?.cellIndex;
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for (var i = 0; i < inSightEnemies.Count; i++)
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{
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var enemy = inSightEnemies[i];
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if (enemy == null)
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{
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continue;
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}
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var enemyCellIndex = enemy.transData?.cellIndex;
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if (!ownerCellIndex.HasValue || !enemyCellIndex.HasValue)
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{
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continue;
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}
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var distance = MapUtils.Distance(map, ownerCellIndex.Value, enemyCellIndex.Value);
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if (distance <= owner.fightData.normalAttackDistance)
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{
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inSightDistanceList.Add(enemy, distance);
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}
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}
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if (inSightDistanceList.Count <= 0)
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{
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return null;
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}
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else
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{
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owner.statusData.isAttackActive = true;
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var minDistance = float.MaxValue;
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GameUnit nearestEnemy = null;
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foreach (var pair in inSightDistanceList)
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{
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if (minDistance > pair.Value)
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{
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minDistance = pair.Value;
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nearestEnemy = pair.Key;
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}
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}
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return nearestEnemy;
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}
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}
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catch (Exception e)
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{
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DebugUtil.LogError("AIUtils.FindNearestEnemyInShootRange error: {0}", e);
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return null;
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}
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}
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/// <summary>
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/// 寻找锁敌范围内的友军
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/// </summary>
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public static List<GameUnit> FindFriendsInSightDistance(GameUnit owner)
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{
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try
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{
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if (owner == null) return null;
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var map = LevelManager.Instance.CurrentLevel.Map;
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if (map == null) return null;
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allFriends.Clear();
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friendsInSight.Clear();
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GameUnitManager.instance.characterManager.SearchFriends(owner, allFriends);
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var ownerCellIndex = owner.transData?.cellIndex;
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for (var i = 0; i < allFriends.Count; i++)
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{
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var friend = allFriends[i];
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if (friend == null || friend.GetID() == owner.GetID())
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{
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continue;
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}
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var friendCellIndex = friend.transData?.cellIndex;
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if (!ownerCellIndex.HasValue || !friendCellIndex.HasValue)
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{
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continue;
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}
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var distance = MapUtils.Distance(map, ownerCellIndex.Value, friendCellIndex.Value);
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if (distance <= owner.fightData.findEnemyRange)
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{
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friendsInSight.Add(friend);
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}
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}
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return friendsInSight;
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}
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catch (Exception e)
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{
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DebugUtil.LogError("AIUtils.FindFriendsInSightDistance error: {0}", e);
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return null;
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}
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}
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/// <summary>
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/// 寻找锁敌范围内的敌方npc
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/// </summary>
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private static Dictionary<GameUnit, int> FindEnemyNpcInSight(GameUnit owner)
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{
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try
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{
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var enemyNpc = new Dictionary<GameUnit, int>();
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var level = LevelManager.Instance.CurrentLevel;
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if (level == null) return enemyNpc;
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var map = LevelManager.Instance.CurrentLevel.Map;
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if (map == null || level.SelfNpcLocalID == null || level.SelfNpcLocalID.Count <= 0) return enemyNpc;
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var enemyList = new List<GameUnit>();
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GameUnitManager.instance.characterManager.SearchEnemies(owner, enemyList);
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foreach (var enemy in enemyList)
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{
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if (enemy.unitLevelData == null) continue;
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if (level.SelfNpcLocalID.Contains(enemy.unitLevelData.LocalId))
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{
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var distance = MapUtils.Distance(map, enemy.transData.cellIndex, owner.transData.cellIndex);
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if (distance <= owner.fightData.findEnemyRange)
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enemyNpc.Add(enemy, distance);
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}
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}
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return enemyNpc;
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}
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catch (Exception e)
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{
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DebugUtil.LogError("AIUtils.FindEnemyNpcInSight error: {0}", e);
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return null;
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}
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}
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/// <summary>
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/// 寻找范围内最近的敌方npc
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/// </summary>
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public static GameUnit FindNearestEnemyNpcInShootRange(GameUnit owner)
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{
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try
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{
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var enemyNpc = FindEnemyNpcInSight(owner);
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if (enemyNpc == null || enemyNpc.Count <= 0) return null;
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GameUnit nearestEnemy = null;
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var minDistance = float.MaxValue;
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foreach (var pair in enemyNpc)
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{
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if (minDistance > pair.Value)
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{
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minDistance = pair.Value;
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nearestEnemy = pair.Key;
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}
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}
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return nearestEnemy;
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}
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catch (Exception e)
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{
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DebugUtil.LogError("AIUtils.FindNearestEnemyNpcInShootRange error: {0}", e);
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return null;
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}
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}
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/// <summary>
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/// 获取距离自己最近的单位
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/// </summary>
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public static GameUnit GetNearestGameUnit(GameUnit owner, GameUnit newUnit, GameUnit unit)
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{
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try
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{
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if (owner == null || newUnit == null || unit == null) return null;
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var map = LevelManager.Instance.CurrentLevel.Map;
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if (map == null) return null;
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var ownerCellIndex = owner.transData?.cellIndex;
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var unitCellIndex = unit.transData?.cellIndex;
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var newUnitCellIndex = newUnit.transData?.cellIndex;
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if (!ownerCellIndex.HasValue || !unitCellIndex.HasValue || !newUnitCellIndex.HasValue) return null;
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var distance = MapUtils.Distance(map, ownerCellIndex.Value, unitCellIndex.Value);
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var newDistance = MapUtils.Distance(map, ownerCellIndex.Value, newUnitCellIndex.Value);
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return distance <= newDistance ? unit : newUnit;
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}
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catch (Exception e)
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{
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DebugUtil.LogError("AIUtils.GetNearestGameUnit error: {0}", e);
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// 异常返回默认单位
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return unit;
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}
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}
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/// <summary>
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/// 寻找最近的巡逻点位
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/// </summary>
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public static int FindNearestPointInPatrolInfo(GameUnit owner, List<PatrolInfo> patrolInfos)
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{
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try
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{
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if (owner == null) return Constants.INVALID_ID;
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var map = LevelManager.Instance.CurrentLevel.Map;
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if (map == null) return Constants.INVALID_ID;
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patrolDistanceList.Clear();
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var ownerCellIndex = owner.transData?.cellIndex;
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for (var i = 0; i < patrolInfos.Count; i++)
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{
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var point = map.BlockPosition2TGSCellIndex(patrolInfos[i].patrolPoint);
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if (!ownerCellIndex.HasValue || point == Constants.INVALID_ID)
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{
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continue;
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}
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patrolDistanceList.Add(i,
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MapUtils.Distance(map, ownerCellIndex.Value, point));
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}
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var minDistance = int.MaxValue;
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int nearestPoint = 0;
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foreach (var pair in patrolDistanceList)
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{
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if (minDistance > pair.Value)
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{
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minDistance = pair.Value;
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nearestPoint = pair.Key;
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}
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}
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return nearestPoint;
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}
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catch (Exception e)
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{
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DebugUtil.LogError("AIUtils.FindNearestPointInPatrolInfo error: {0}", e);
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// 异常返回第一个索引点
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return 0;
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}
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}
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/// <summary>
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/// 巡逻点位转换为格子索引
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/// </summary>
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public static int GetPatrolPointIndexFromVector2Int(Map map, int patrolIndex, List<PatrolInfo> patrolInfos)
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{
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try
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{
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if (map == null || patrolIndex >= patrolInfos.Count) return -1;
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var patrolInfo = patrolInfos[patrolIndex];
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if (patrolInfo == null) return -1;
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return map.BlockPosition2TGSCellIndex(patrolInfo.patrolPoint);
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}
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catch (Exception e)
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{
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DebugUtil.LogError("AIUtils.GetPatrolPointIndexFromVector2Int error: {0}", e);
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// 异常返回无效格子索引
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return -1;
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}
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}
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public static bool IsNeedStop(GameUnit owner)
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{
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return owner.statusData.isOnVehicle || owner.statusData.isChaos || owner.statusData.isStun
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|| owner.statusData.isLockPos || owner.statusData.isRetreat || owner.statusData.isDead;
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}
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public static bool AINeedStopUpdate(Level.Level level)
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{
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if (level == null) return false;
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return level.IsPreparing() || level.IsEnd() || Math.Abs(level.GetSpeed() - 0f) < 0.01f;
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}
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/// <summary>
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/// 激活AI攻击
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/// </summary>
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public static void ActiveAIAttack(GameUnit owner)
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{
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try
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{
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if (owner == null) return;
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if (owner.statusData.isAttackActive) return;
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var map = LevelManager.Instance.CurrentLevel.Map;
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if (map == null) return;
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if (owner.controlData.targetEnemy != null)
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{
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owner.statusData.isAttackActive = true;
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}
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else
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{
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var target = FindNearestEnemyInShootRange(owner);
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if (target != null)
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{
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owner.controlData.targetEnemy = target;
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owner.statusData.isAttackActive = true;
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}
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}
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}
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catch (Exception e)
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{
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DebugUtil.LogError("AIUtils.ActiveAIAttack error: {0}", e);
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}
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}
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/// <summary>
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/// 单位移动
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/// </summary>
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public static bool MoveTo(GameUnit owner, int cellIndex, bool cancelFollow = true)
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{
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try
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{
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if (owner == null || cellIndex == -1) return false;
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var map = LevelManager.Instance.CurrentLevel.Map;
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if (map == null) return false;
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var mapData = map.MapData;
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if (mapData == null) return false;
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var blockData = map.MapData.GetBlockData(cellIndex).GetTerrainTypeProperty();
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if (blockData == null) return false;
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if (!blockData.selectable) return false;
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owner.MoveTo(cellIndex, cancelFollow);
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return true;
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}
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catch (Exception e)
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{
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DebugUtil.LogError("AIUtils.MoveTo error: {0}", e);
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return false;
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}
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}
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/// <summary>
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/// 单位撤退
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/// </summary>
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/// <returns></returns>
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public static bool MoveAway(GameUnit owner, GameUnit enemyUnit, bool cancelFollow = true)
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{
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try
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{
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if (enemyUnit == null) return false;
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var map = LevelManager.Instance.CurrentLevel.Map;
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if (map == null) return false;
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var mapData = map.MapData;
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if (mapData == null) return false;
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map.WorldPosition2BlockPosition(enemyUnit.Node.GetPosition(), out var targetEnemy2IntPos);
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var self2IntPos = map.TGSCellIndex2BlockPosition(owner.transData.cellIndex);
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var newSelf2IntPos = self2IntPos;
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newSelf2IntPos.x = Math.Clamp(
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(self2IntPos.x - targetEnemy2IntPos.x) > 0 ? self2IntPos.x + 1 : self2IntPos.x - 1, 0,
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map.MapData.Height - 1);
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newSelf2IntPos.y = Math.Clamp(
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(self2IntPos.y - targetEnemy2IntPos.y) > 0 ? self2IntPos.y + 1 : self2IntPos.y - 1, 0,
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map.MapData.Width - 1);
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if (self2IntPos == newSelf2IntPos) return false;
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var cellIndex = map.BlockPosition2TGSCellIndex(newSelf2IntPos);
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if (PathFinder.CanPass(cellIndex, owner))
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{
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owner.MoveTo(cellIndex, cancelFollow);
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return true;
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}
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return false;
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}
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catch (Exception e)
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{
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DebugUtil.LogError("AIUtils.MoveAway error: {0}", e);
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return false;
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}
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}
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/// <summary>
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/// AI 移动向敌人并检查
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/// </summary>
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public static void CheckAndMove(GameUnit owner, int cellIndex, bool cancelFollow = true)
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{
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try
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{
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if (!MoveTo(owner, cellIndex, cancelFollow)) return;
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if (owner.gameunitType != EGameUnitType.Character
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&& owner.gameunitType != EGameUnitType.Vehicle) return;
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var units = AreaManager.instance.GetUnitsByCellIndex(cellIndex);
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for (int i = 0; i < units.Count; i++)
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{
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var unit = units[i];
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if (unit.commonData.troopId == owner.commonData.troopId)
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{
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/*if (owner.gameunitType == EGameUnitType.Vehicle)
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{
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// 载具不能上载具
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return;
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}
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// 点击的己方单位, 这里必然是载具
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var vehicle = unit as NormalVehicle;
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if (vehicle == null)
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{
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DebugUtil.LogError("不是载具");
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return;
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}
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if (vehicle.CheckCanUp(owner))
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{
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owner.controlData.markVehicle = vehicle;
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}
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return;*/
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}
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else
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{
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// 如果是敌人, 则设置敌人目标
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if (unit.statusData.CheckCanBeTarget(owner, -1))
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{
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owner.controlData.markEnemy = unit;
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owner.controlData.forceUpdateTarget = true;
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return;
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}
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}
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}
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// 走到这里,说明没有目标,清空标记
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owner.controlData.markVehicle = null;
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owner.controlData.markEnemy = null;
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}
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catch (Exception e)
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{
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DebugUtil.LogError("AIUtils.CheckAndMove error: {0}", e);
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}
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}
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/// <summary>
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/// 普通撤退AI 特殊处理 避让角色
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/// </summary>
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public static void AvoidEnemyTarget(GameUnit owner, EventDataStartMove data)
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{
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try
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{
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if (!owner.statusData.isMoveing || data == null) return;
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if (data.sender == null || data.sender.commonData.troopId == owner.commonData.troopId) return;
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if (data.targetCellIndex == owner.controlData.targetCellIndex)
|
|
{
|
|
DebugUtil.Log($"AI[{owner.GetID()}] 需要再次逃离");
|
|
AvoidEnemy(owner, data.targetCellIndex);
|
|
}
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
DebugUtil.LogError("AIUtils.AvoidEnemyTarget error: {0}", e);
|
|
}
|
|
}
|
|
|
|
private static void AvoidEnemy(GameUnit owner, int cellIndex)
|
|
{
|
|
try
|
|
{
|
|
var map = LevelManager.Instance.CurrentLevel.Map;
|
|
if (map == null) return;
|
|
var height = map.MapData.Height;
|
|
var width = map.MapData.Width;
|
|
var target = cellIndex;
|
|
var newArea = new List<int>()
|
|
{
|
|
-1, width, width + 1, 1, 1 - width, -width
|
|
};
|
|
foreach (var value in newArea)
|
|
{
|
|
var sum = target + value;
|
|
if (sum >= 0 && sum < height * width && PathFinder.CanPass(sum, owner))
|
|
{
|
|
DebugUtil.Log($"AI[{owner.GetID()}] 向周围移动");
|
|
owner.MoveTo(sum, true);
|
|
return;
|
|
}
|
|
}
|
|
|
|
// 无处可去
|
|
DebugUtil.Log($"AI[{owner.GetID()}] 需要回到出生点");
|
|
owner.MoveTo(owner.transData.bornCellIndex, true);
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
DebugUtil.LogError("AIUtils.AvoidEnemy error: {0}", e);
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// 计算当前位置与出生点位置是否超过防守距离
|
|
/// </summary>
|
|
public static bool CheckDistanceIsOver(GameUnit owner)
|
|
{
|
|
try
|
|
{
|
|
if (owner == null) return true;
|
|
var map = LevelManager.Instance.CurrentLevel.Map;
|
|
if (map == null) return true;
|
|
var curPos = owner.transData.cellIndex;
|
|
var bornPos = map.BlockPosition2TGSCellIndex(owner.unitLevelData.BornPosition);
|
|
var distance = MapUtils.Distance(map, curPos, bornPos);
|
|
return owner.unitLevelData.DefensiveDistance < distance;
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
DebugUtil.LogError("AIUtils.CheckDistanceIsOver error: {0}", e);
|
|
// 默认超出
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
} |