111 lines
3.2 KiB
C#
111 lines
3.2 KiB
C#
using System.Collections.Generic;
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using GeometryTD.Entity;
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using GeometryTD.Map;
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using UnityEngine;
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namespace GeometryTD.CustomComponent
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{
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internal sealed class EnemySpawnPathResolver
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{
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private readonly List<Spawner> _spawners = new();
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private readonly Dictionary<int, Spawner> _spawnerByOrder = new();
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private readonly List<Vector3> _pathBuffer = new();
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private int _nextSpawnerIndex;
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private int _currentMapEntityId;
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public void Reset()
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{
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_spawners.Clear();
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_spawnerByOrder.Clear();
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_pathBuffer.Clear();
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_nextSpawnerIndex = 0;
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_currentMapEntityId = 0;
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}
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public void RefreshCache(CombatScheduler combatScheduler, bool force)
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{
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MapEntity currentMap = combatScheduler != null ? combatScheduler.CurrentMap : null;
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if (currentMap == null)
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{
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Reset();
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return;
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}
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if (!force && _currentMapEntityId == currentMap.Id && _spawners.Count > 0)
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{
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return;
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}
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_spawners.Clear();
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_spawnerByOrder.Clear();
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_nextSpawnerIndex = 0;
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_currentMapEntityId = currentMap.Id;
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Spawner[] mapSpawners = currentMap.Spawners;
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for (int i = 0; i < mapSpawners.Length; i++)
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{
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Spawner spawner = mapSpawners[i];
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if (spawner == null)
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{
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continue;
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}
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if (!currentMap.TryGetDefaultPathCells(spawner, out _))
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{
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continue;
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}
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_spawners.Add(spawner);
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if (spawner.SpawnOrder > 0 && !_spawnerByOrder.ContainsKey(spawner.SpawnOrder))
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{
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_spawnerByOrder[spawner.SpawnOrder] = spawner;
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}
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}
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_spawners.Sort((left, right) => left.SpawnOrder.CompareTo(right.SpawnOrder));
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}
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public bool TryResolveSpawnPath(CombatScheduler combatScheduler, int spawnPointId, out IReadOnlyList<Vector3> pathPoints)
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{
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pathPoints = null;
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MapEntity currentMap = combatScheduler != null ? combatScheduler.CurrentMap : null;
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if (currentMap == null)
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{
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return false;
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}
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Spawner spawner = ResolveSpawner(spawnPointId);
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if (spawner == null)
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{
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return false;
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}
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if (!currentMap.TryFindPathWorldPoints(spawner, null, _pathBuffer) || _pathBuffer.Count <= 0)
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{
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return false;
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}
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pathPoints = _pathBuffer;
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return true;
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}
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private Spawner ResolveSpawner(int spawnPointId)
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{
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if (spawnPointId > 0 && _spawnerByOrder.TryGetValue(spawnPointId, out Spawner mappedSpawner))
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{
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return mappedSpawner;
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}
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if (_spawners.Count <= 0)
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{
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return null;
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}
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Spawner fallbackSpawner = _spawners[_nextSpawnerIndex % _spawners.Count];
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_nextSpawnerIndex++;
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return fallbackSpawner;
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}
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}
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}
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