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57 lines
2.3 KiB
57 lines
2.3 KiB
2 weeks ago
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import type { EntityId } from 'db://assets/mx/module/ecs';
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import { createAbilityContext } from 'db://assets/mx/module/battle/combat/AbilityContext';
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import { SkillPresentationEnv } from '../skill/SkillPresentationEnv';
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import type { SkillPresentationContext } from '../skill/SkillPresentationTypes';
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/** 影子伤害参数 */
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export interface ShadowDealParams {
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/** 伤害系数（倍数） */
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scale?: number;
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/** 直伤类型 */
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damageType?: string;
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/** 命中效果串（同 atk_buff1 语法）；不传用构建时的默认 */
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skillAtkBuff1?: string;
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/** 命中效果串 2；不传用构建时的默认 */
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skillAtkBuff2?: string;
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}
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/**
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* 影子上下文：普攻 cast 间隔短于表现时长时会被下一次施法 cancel('superseded')，
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* 与 cast 生命周期解耦的延迟效果（环形龙影/追加伤害等）用——
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* isAlive 只看施法者存活；伤害走独立通道
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* （与 SkillPresentationBridge.dealDamage 相同：before→calc→after、atk_buff 命中效果、可暴击）。
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* @param ctx 表现上下文
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* @param buff1 默认命中效果串（不传时 dealDamage 的兜底）
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* @param buff2 默认命中效果串 2
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*/
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export function buildShadowDealContext(
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ctx: SkillPresentationContext,
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buff1: string,
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buff2: string,
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): SkillPresentationContext {
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const session = SkillPresentationEnv.getBattleSession();
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const caster = ctx.caster;
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const abilityId = ctx.abilityId;
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const level = ctx.level;
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const dealDamage = (target: EntityId, p?: ShadowDealParams): boolean => {
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if (!session || !session.world.isAlive(caster) || !session.world.isAlive(target)) return false;
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const abilityCtx = createAbilityContext(session, caster, abilityId, [target]);
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abilityCtx.level = level;
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abilityCtx.targets = [target];
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const amount = session.damage.dealToTarget(caster, target, {
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scale: p?.scale ?? 1,
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damageType: p?.damageType,
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skillAtkBuff1: p?.skillAtkBuff1 ?? buff1,
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skillAtkBuff2: p?.skillAtkBuff2 ?? buff2,
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}, abilityCtx);
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return amount > 0;
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};
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return {
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...ctx,
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get isAlive() { return !!session && session.world.isAlive(caster); },
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dealDamage,
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finish: (): void => {},
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cancel: (): void => {},
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} as SkillPresentationContext;
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}
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