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114 lines
3.7 KiB
114 lines
3.7 KiB
import type { BattleServices } from 'db://assets/mx/module/battle/combat/BattleServices';
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import type { Cell } from 'db://assets/mx/module/battle/battlefield/Cell';
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import type { EntityId } from 'db://assets/mx/module/battle/ecs/EntityId';
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import type { UnitDef } from 'db://assets/mx/module/battle/config/BattleConfigTypes';
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import {
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TransformComp,
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TeamComp,
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UnitMetaComp,
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HealthComp,
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CombatComp,
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AbilitySetComp,
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TagComp,
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MovementComp,
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GridOccupancyComp,
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} from '../ecs/Components';
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import { BattleTeamId } from '../ecs/BattleTeamId';
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import { traceCombatDamage } from 'db://assets/mx/tools/CombatDamageTrace';
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import { finitePositiveHp } from 'db://assets/mx/tools/FiniteHp';
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/**
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* 单位工厂：按 UnitDef 创建 ECS 实体并挂到 GridMap / SpatialGrid。
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*/
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export class UnitFactory {
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/**
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* @param services 战斗服务
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* @param def 单位定义
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* @param ownerId 所属/进攻目标玩家 ID
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* @param anchor 锚点格
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* @param cells 占地格
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* @returns 实体 ID
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*/
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static create(
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services: BattleServices,
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def: UnitDef,
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ownerId: number,
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anchor: Cell,
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cells: Cell[],
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): EntityId {
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const world = services.world;
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const id = world.spawn();
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const teamId = def.team === 'player'
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? ownerId
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: BattleTeamId.enemyForPlayer(ownerId);
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world.addComponent(id, new TransformComp(anchor.row, anchor.col));
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world.addComponent(id, new TeamComp(teamId, ownerId));
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world.addComponent(id, new UnitMetaComp(def.id, 1));
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if (def.components.health) {
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const maxHp = finitePositiveHp(def.components.health.maxHp, 1);
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world.addComponent(id, new HealthComp(maxHp, maxHp));
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traceCombatDamage('unitSpawnHealth', { entity: id, unitDefId: def.id, maxHp });
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}
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if (def.components.combat) {
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const c = def.components.combat;
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world.addComponent(id, new CombatComp(
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c.attack ?? 10,
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c.attackSpeed ?? 1,
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c.range ?? 3,
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c.critRate ?? 0,
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c.critDamage ?? 1.5,
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));
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}
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if (def.components.abilities?.length) {
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world.addComponent(id, new AbilitySetComp([...def.components.abilities]));
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}
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if (def.components.tags) {
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world.addComponent(id, new TagComp([...def.components.tags]));
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}
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if (def.components.movement) {
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const w = services.grid.cellToWorld(anchor);
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world.addComponent(id, new MovementComp(
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def.components.movement.speed,
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[],
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0,
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w.x,
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w.y,
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false,
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));
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}
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const blocksPath = def.components.occupancy?.blocksPath ?? false;
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world.addComponent(id, new GridOccupancyComp(
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anchor,
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cells.map(cell => ({ ...cell })),
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blocksPath,
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));
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services.grid.occupy(cells, id);
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if (blocksPath) {
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let walkChanged = false;
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for (const cell of cells) {
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if (services.grid.isWalkable(cell)) walkChanged = true;
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services.grid.setWalkable(cell, false);
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}
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// 占地挡路改了可走性却未 invalidate 时，距离场会一直用旧障碍
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if (walkChanged) services.pathfinder.invalidate();
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}
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services.spatial.updateEntity(id, anchor);
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if (world.hasComponent(id, CombatComp)) {
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services.attributes.syncCombatToAttributes(id);
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}
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if (world.hasComponent(id, AbilitySetComp)) {
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services.abilities.bindEntity(id);
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}
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return id;
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}
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}
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