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81 lines
2.9 KiB
81 lines
2.9 KiB
3 weeks ago
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import type { World, EntityId } from 'db://assets/mx/module/ecs';
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import type { ISystem } from 'db://assets/mx/module/ecs';
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import { BattlePhase } from '../core/BattlePhase';
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import { BattleTeamId } from '../ecs/BattleTeamId';
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import { MovementComp, TeamComp } from '../ecs/Components';
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import type { PlayerSlot } from '../player/PlayerSlot';
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import type { BattleEventBus } from '../events/BattleEventBus';
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import type { LifecycleSystem } from './LifecycleSystem';
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/** 怪物到达攻击点：对手营地 -1 血并移除该怪 */
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export class ReachGoalBaseDamageSystem implements ISystem {
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/** 调度优先级（Movement 50 之后） */
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readonly priority = 55;
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/** 是否启用 */
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enabled = true;
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/** 本帧待结算漏怪 */
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private readonly _leakIds: EntityId[] = [];
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/**
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* @param _world ECS 世界
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* @param _players 玩家槽
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* @param _events 事件总线
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* @param _lifecycle 实体生命周期
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* @param _getPhase 当前战斗阶段
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*/
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constructor(
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private readonly _world: World,
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private readonly _players: PlayerSlot[],
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private readonly _events: BattleEventBus,
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private readonly _lifecycle: LifecycleSystem,
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private readonly _getPhase: () => BattlePhase,
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) {}
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/** 每帧收集已到达攻击点的敌怪并结算漏怪 */
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tick(_dt: number): void {
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if (this._getPhase() !== BattlePhase.COMBAT) return;
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this._leakIds.length = 0;
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this._world.view2(MovementComp, TeamComp).forEach(this._collectLeak);
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for (let i = 0; i < this._leakIds.length; i++) {
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this._applyLeak(this._leakIds[i]);
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}
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}
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/**
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* 收集本帧到达攻击点的敌怪。
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* @param id 实体
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* @param move 移动组件
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* @param team 阵营
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*/
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private readonly _collectLeak = (id: EntityId, move: MovementComp, team: TeamComp): void => {
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if (!BattleTeamId.isEnemyTeam(team.team)) return;
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if (!move.reachedGoal || !move.hasAttackGoal) return;
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if (move.spawnProtected || move.presentLocked || move.imprisoned) return;
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if (move.bajiaoBlowRetreating || move.forcePathSpeed > 0) return;
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this._leakIds.push(id);
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};
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/**
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* @param id 到达营地的敌怪
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*/
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private _applyLeak(id: EntityId): void {
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if (!this._world.isAlive(id)) return;
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const team = this._world.getComponent(id, TeamComp);
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if (!team) {
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console.log('[ReachGoal] 漏怪无 TeamComp', id);
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this._lifecycle.despawn(id);
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return;
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}
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const slot = this._players[team.ownerId];
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if (!slot) {
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console.log('[ReachGoal] 无对应玩家槽', team.ownerId, id);
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this._lifecycle.despawn(id);
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return;
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}
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if (slot.wallHp > 0) {
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slot.damageWall(1, this._events);
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}
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this._lifecycle.despawn(id);
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}
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}
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