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247 lines
8.5 KiB
247 lines
8.5 KiB
3 weeks ago
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import { RankDataManager } from '../../manager/RankDataManager';
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import { TableNames } from '../../game/ConfigTableData';
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import { getBattleBuffUnitReviveHost } from './BattleBuffUnitReviveHost';
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import type { EntityId } from 'db://assets/mx/module/ecs';
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import type { ProjectBattleHandle } from '../runtime/BattleRuntime';
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/** 万分比分母 */
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const WAN = 10000;
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/** Rank.weaponweight 下标 → Weapon.quality：绿 / 蓝 / 紫 / 橙 */
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const WEIGHT_QUALITY = [1, 2, 3, 4];
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/** 掷骰失败哨兵（0 为白色，不可与失败混用） */
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const ROLL_FAIL = -1;
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/** 局内一次武器碎片掉落 */
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export interface WeaponDropRecord {
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/** Weapon.id */
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weaponId: number;
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/** 碎片 Item.id（Weapon.itemid） */
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itemId: number;
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/** Weapon.quality */
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quality: number;
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/** 是否己方击杀 */
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isSelf: boolean;
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}
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/** 结算用碎片堆叠项 */
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export interface WeaponDropRewardItem {
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/** 碎片 Item.id */
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itemId: number;
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/** 数量 */
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num: number;
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}
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/** 结算 UI：同 weaponId 合并后的展示项 */
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export interface WeaponDropAggregatedEntry {
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/** 代表记录（首条，用于外观） */
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record: WeaponDropRecord;
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/** 碎片数量 */
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count: number;
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}
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/**
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* 击杀掉落武器碎片：概率、品质、武器抽取与本局记录。
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*/
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export class WeaponDropService {
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private readonly _self: WeaponDropRecord[] = [];
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private readonly _other: WeaponDropRecord[] = [];
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/** 按击杀顺序的全部掉落（暂停列表用） */
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private readonly _all: WeaponDropRecord[] = [];
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private readonly _pendingVisual: WeaponDropRecord[] = [];
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private _poolByQuality: ITableWeapon[][] | null = null;
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/** 己方已掉落碎片 */
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get selfDrops(): readonly WeaponDropRecord[] {
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return this._self;
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}
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/** 敌方已掉落碎片 */
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get otherDrops(): readonly WeaponDropRecord[] {
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return this._other;
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}
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/** 全部掉落（击杀顺序） */
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get allDrops(): readonly WeaponDropRecord[] {
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return this._all;
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}
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/**
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* 击杀时掷骰；成功则记入列表并排队表现。
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* @param battle 当前战斗
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* @param killer 击杀者
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* @param victim 死亡实体
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*/
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tryOnKill(battle: ProjectBattleHandle, killer: EntityId, victim: EntityId): WeaponDropRecord | null {
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if (getBattleBuffUnitReviveHost().isPassiveRevivedEntity(victim)) return null;
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const rec = this._roll(battle, killer, victim);
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if (!rec) return null;
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this._all.push(rec);
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if (rec.isSelf) this._self.push(rec);
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else this._other.push(rec);
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this._pendingVisual.push(rec);
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return rec;
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}
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/** 取出下一条待播表现的掉落（与 EntityKilled 一对一） */
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shiftPendingVisual(): WeaponDropRecord | null {
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if (this._pendingVisual.length <= 0) return null;
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return this._pendingVisual.shift() ?? null;
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}
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/** 胜利结算：双方碎片按 itemId 堆叠 */
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collectRewardItems(): WeaponDropRewardItem[] {
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const out: WeaponDropRewardItem[] = [];
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this._stackInto(out, this._self);
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this._stackInto(out, this._other);
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return out;
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}
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/**
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* 按 weaponId 合并掉落（结算列表：同武器共用一个预制体并显示数量）。
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* @param drops 本局全部掉落
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*/
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static aggregateByWeaponId(drops: readonly WeaponDropRecord[]): WeaponDropAggregatedEntry[] {
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const out: WeaponDropAggregatedEntry[] = [];
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for (let i = 0; i < drops.length; i++) {
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const rec = drops[i];
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let found = false;
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for (let j = 0; j < out.length; j++) {
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if (out[j].record.weaponId !== rec.weaponId) continue;
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out[j].count += 1;
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found = true;
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break;
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}
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if (!found) out.push({ record: rec, count: 1 });
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}
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return out;
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}
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/** 清空本局记录 */
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clear(): void {
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this._self.length = 0;
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this._other.length = 0;
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this._all.length = 0;
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this._pendingVisual.length = 0;
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}
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/**
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* 按品质权重与武器表掷出一条掉落。
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* @param battle 当前战斗
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* @param killer 击杀者
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* @param victim 死亡实体
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*/
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private _roll(battle: ProjectBattleHandle, killer: EntityId, victim: EntityId): WeaponDropRecord | null {
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const monster = battle.resolveMonsterRow(victim);
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if (!monster) return null;
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const rank = RankDataManager.getRankConfig(battle.playerRankId);
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if (!rank) {
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console.log('[WeaponDrop] Rank 缺失', battle.playerRankId);
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return null;
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}
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const monsterDrop = Math.floor(Number(monster.weapondrop) || 0);
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const rankDrop = Math.floor(Number(rank.weapondrop) || 0);
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if (monsterDrop < 0 || rankDrop < 0) {
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console.log('[WeaponDrop] weapondrop 非法', monster.id, monster.weapondrop, rank.weapondrop);
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return null;
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}
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const chance = monsterDrop + rankDrop;
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if (chance <= 0) return null;
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if (Math.random() * WAN >= chance) return null;
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const quality = this._rollQuality(rank.weaponweight);
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if (quality < 0) return null;
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const weapon = this._pickWeapon(quality);
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if (!weapon) return null;
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const itemId = Math.floor(Number(weapon.itemid) || 0);
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if (itemId <= 0) {
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console.log('[WeaponDrop] 武器无碎片 id', weapon.id);
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return null;
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}
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const ownerId = battle.resolveKillPeachOwnerPlayerId(killer, victim);
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return {
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weaponId: Math.floor(Number(weapon.id) || 0),
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itemId,
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quality,
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isSelf: ownerId === battle.localPlayerId,
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};
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}
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/**
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* 按绿蓝紫橙四档权重随机品质。
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* @param weights Rank.weaponweight
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*/
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private _rollQuality(weights: readonly number[] | null | undefined): number {
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if (!weights || weights.length < WEIGHT_QUALITY.length) {
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console.log('[WeaponDrop] weaponweight 长度非法');
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return ROLL_FAIL;
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}
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let total = 0;
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for (let i = 0; i < WEIGHT_QUALITY.length; i++) {
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const w = Math.max(0, Math.floor(Number(weights[i]) || 0));
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total += w;
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}
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if (total <= 0) {
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console.log('[WeaponDrop] weaponweight 全 0');
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return ROLL_FAIL;
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}
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let roll = Math.random() * total;
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for (let i = 0; i < WEIGHT_QUALITY.length; i++) {
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roll -= Math.max(0, Math.floor(Number(weights[i]) || 0));
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if (roll < 0) return WEIGHT_QUALITY[i];
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}
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return WEIGHT_QUALITY[WEIGHT_QUALITY.length - 1];
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}
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/**
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* 从该品质武器池均匀随机一把。
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* @param quality Weapon.quality
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*/
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private _pickWeapon(quality: number): ITableWeapon | null {
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this._ensurePools();
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const pool = this._poolByQuality?.[quality];
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if (!pool || pool.length <= 0) {
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console.log('[WeaponDrop] 该品质无可用武器', quality);
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return null;
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}
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const idx = Math.floor(Math.random() * pool.length);
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return pool[idx] ?? null;
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}
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/** 按品质缓存 itemid>0 的武器 */
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private _ensurePools(): void {
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if (this._poolByQuality) return;
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const buckets: ITableWeapon[][] = [[], [], [], [], []];
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const list = gg.data.table.getTableList<ITableWeapon>(TableNames.Weapon) ?? [];
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for (let i = 0; i < list.length; i++) {
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const row = list[i];
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if (!(Math.floor(Number(row.itemid) || 0) > 0)) continue;
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const q = Math.floor(Number(row.quality) || 0);
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if (q < 0 || q > 4) {
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console.log('[WeaponDrop] 武器品质越界', row.id, q);
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continue;
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}
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buckets[q].push(row);
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}
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this._poolByQuality = buckets;
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}
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/**
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* 把掉落按 itemId 堆入结算数组。
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* @param out 结算数组
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* @param drops 掉落列表
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*/
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private _stackInto(out: WeaponDropRewardItem[], drops: readonly WeaponDropRecord[]): void {
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for (let i = 0; i < drops.length; i++) {
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const itemId = drops[i].itemId;
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let found = false;
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for (let j = 0; j < out.length; j++) {
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if (out[j].itemId !== itemId) continue;
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out[j].num += 1;
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found = true;
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break;
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}
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if (!found) out.push({ itemId, num: 1 });
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}
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}
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}
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