功能修复

dist/assets/index-C0M19raZ.js

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dist/assets/index-D9evYJNa.js

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dist/assets/index-NY7UreRZ.css

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small[data-v-2ef0dcfc]{color:#cfe0ff;font-weight:500;font-size:9px}.help-module-body[data-v-2ef0dcfc]{padding-top:10px}@media(max-width:760px){.help-overlay[data-v-2ef0dcfc]{padding:66px 12px 14px}.help-grid[data-v-2ef0dcfc]{grid-template-columns:1fr}}.topbar[data-v-de1baa8a]{display:flex;align-items:center;gap:10px;flex-wrap:wLine truncated
+.help-overlay[data-v-2ef0dcfc]{position:absolute;top:0;right:0;bottom:0;left:0;z-index:40;display:flex;align-items:center;justify-content:center;padding:72px 24px 28px;box-sizing:border-box;background:#05080fb8;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}.help-dialog[data-v-2ef0dcfc]{width:min(820px,100%);max-height:100%;display:flex;flex-direction:column;overflow:hidden;border:1px solid #3a4864;border-radius:14px;background:#141a27;color:#b8c3d8;box-shadow:0 22px 70px #0000009e}.help-head[data-v-2ef0dcfc]{display:flex;align-items:flex-start;justify-content:space-between;gap:18px;padding:18px 20px 15px;border-bottom:1px solid #2b354a;background:linear-gradient(135deg,#202942,#181e2d)}.help-head h2[data-v-2ef0dcfc]{margin:0;color:#eef2ff;font-size:19px}.help-head p[data-v-2ef0dcfc]{margin:5px 0 0;color:#7786a3;font-size:11px}.help-close[data-v-2ef0dcfc]{width:28px;height:28px;flex:0 0 28px;border:1px solid #43516b;border-radius:6px;background:#273249;color:#ccd7ed;cursor:pointer}.help-close[data-v-2ef0dcfc]:hover{border-color:#7774ff;background:#3b4670;color:#fff}.help-body[data-v-2ef0dcfc]{min-height:0;overflow:auto;padding:18px 20px 21px}.help-section[data-v-2ef0dcfc]{padding:14px 15px;border:1px solid #2c3850;border-radius:10px;background:#181f2e}.help-section h3[data-v-2ef0dcfc]{margin:0 0 11px;color:#9fb2ff;font-size:13px}.help-start ol[data-v-2ef0dcfc]{margin:0;padding-left:21px;color:#aab6cc;font-size:12px;line-height:1.75}.help-start li[data-v-2ef0dcfc]::marker{color:#7774ff;font-weight:700}.help-section b[data-v-2ef0dcfc]{color:#dce4f7}.help-grid[data-v-2ef0dcfc]{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(250px,.85fr);gap:12px;margin-top:12px}.help-list[data-v-2ef0dcfc]{display:grid;gap:0;margin:0}.help-list>div[data-v-2ef0dcfc]{display:grid;grid-template-columns:78px 1fr;gap:9px;padding:7px 0;border-bottom:1px solid 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p[data-v-2ef0dcfc]{margin:0;color:#8997b0;font-size:11px;line-height:1.65}.help-doc-title[data-v-2ef0dcfc]{margin:16px 2px 2px;color:#9fb2ff;font-size:13px;font-weight:700;letter-spacing:.5px}.help-module[data-v-2ef0dcfc]{margin-top:12px}.help-module-head[data-v-2ef0dcfc]{display:flex;align-items:center;gap:8px;width:100%;padding:0;border:0;background:transparent;color:#9fb2ff;font:inherit;font-size:13px;font-weight:700;text-align:left;cursor:pointer}.help-module-head[data-v-2ef0dcfc]:hover{color:#fff}.help-module-head .mtitle[data-v-2ef0dcfc]{flex:1;min-width:0}.help-module-head .caret[data-v-2ef0dcfc]{flex:0 0 auto;color:#7b86a2;font-size:12px}.help-module.open .help-module-head[data-v-2ef0dcfc]{color:#fff}.help-module.open .help-module-head .caret[data-v-2ef0dcfc]{color:#9fb2ff}.help-module .mnum[data-v-2ef0dcfc]{flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:6px;background:linear-gradient(135deg,#4a53b8,#6a5fd0);color:#fff;font-size:12px;font-weight:700}.help-module.help-connector[data-v-2ef0dcfc]{border-color:#4a4f8a;background:linear-gradient(135deg,#1d2442,#181d2f)}.help-module.help-connector .help-module-head[data-v-2ef0dcfc]{color:#b8c2ff}.help-module .connector-intro[data-v-2ef0dcfc]{margin:0 0 10px;color:#9aa8c4;font-size:11px;line-height:1.6}.help-module .connector-intro b[data-v-2ef0dcfc]{color:#dce4f7}.help-module .dl-link[data-v-2ef0dcfc]{display:inline-flex;flex-direction:column;align-items:flex-start;gap:2px;margin:0 10px 6px 0;padding:6px 12px;border:1px solid #5652b5;border-radius:6px;background:#4540a0;color:#fff;font-size:12px;font-weight:700;text-decoration:none}.help-module .dl-link[data-v-2ef0dcfc]:hover{border-color:#8982ff;background:#554dc2}.help-module .dl-link small[data-v-2ef0dcfc]{color:#cfe0ff;font-weight:500;font-size:9px}.help-module-body[data-v-2ef0dcfc]{padding-top:10px}@media(max-width:760px){.help-overlay[data-v-2ef0dcfc]{padding:66px 12px 14px}.help-grid[data-v-2ef0dcfc]{grid-template-columns:1fr}}.topbar[data-v-de1baa8a]{display:flex;align-items:center;gap:10px;flex-wrap:wLine truncated

dist/index.html

@@ -9,9 +9,9 @@
       html, body { margin: 0; padding: 0; background: #111; color: #eee; font-family: system-ui, -apple-system, sans-serif; }
       #app { display: flex; flex-direction: column; height: 100vh; }
     </style>
-    <script type="module" crossorigin src="/assets/index-D9evYJNa.js"></script>
+    <script type="module" crossorigin src="/assets/index-C0M19raZ.js"></script>
     <link rel="modulepreload" crossorigin href="/assets/vendor-Cb_6CYmx.js">
-    <link rel="stylesheet" crossorigin href="/assets/index-BiWG32s_.css">
+    <link rel="stylesheet" crossorigin href="/assets/index-NY7UreRZ.css">
     <script>
             var _paq = window._paq = window._paq || [];
             _paq.push(['trackPageView']);

scripts/verify-particle-events.mjs

@@ -122,6 +122,45 @@ if (delayedTarget.activeCount !== 0) throw new Error('子发射器延迟未到
 delayedTarget.update(0.1)
 if (delayedTarget.activeCount !== 2) throw new Error(`子发射器延迟后应生成 2 颗，实际 ${delayedTarget.activeCount} 颗`)
 
+// 持续子发射器：每次父事件启动独立窗口，窗口内所有粒子复用该事件的继承快照。
+const streamConfig = makeConfig({
+  mode: 'stream',
+  streamBehavior: 'normal',
+  rate: 30,
+  duration: 0.1,
+  lifeMin: 1,
+  lifeMax: 1,
+  scaleMode: 'fixed',
+  scaleMin: 1,
+  scaleMax: 1,
+  initialRotationMode: 'fixed',
+  initialRotationMin: 0,
+  initialRotationMax: 0,
+})
+streamConfig.imageResources[0].colorMode = 'fixed'
+streamConfig.imageResources[0].colorStart = '#102030'
+const streamTarget = new ParticleEmitter(streamConfig)
+streamTarget.setAutoEmission(false)
+const streamInheritAttributes = ['color', 'scale', 'rotation', 'life']
+const streamInheritData = { colorHex: 0x778899, scaleX: 2, scaleY: 2, rotation: 90, life: 0.5 }
+streamTarget.spawnEventParticle(5, 6, 1, {
+  attributes: streamInheritAttributes,
+  colorMode: 'replace',
+  data: streamInheritData,
+})
+streamInheritAttributes.length = 0
+streamInheritData.colorHex = 0
+for (let i = 0; i < 3; i++) streamTarget.update(step)
+const streamStates = streamTarget.capture()
+if (streamStates.length !== 3) throw new Error(`持续子发射器应按速率生成 3 颗，实际 ${streamStates.length} 颗`)
+for (const state of streamStates) {
+  if (state.colorHex !== 0x778899 || state.scaleX !== 2 || state.scaleY !== 2 || Math.abs(state.rotation - 90) > 1e-6) {
+    throw new Error('持续发射窗口没有复用父事件的继承快照')
+  }
+}
+streamTarget.update(step)
+if (streamTarget.capture().length !== 3) throw new Error('持续发射窗口结束后仍继续生成粒子')
+
 // 子发射器：被引用后不自动发射，只接收事件粒子；移除引用后恢复普通系统。
 const subEmitter = new ParticleEmitter(makeConfig({ burstCount: 5 }))
 subEmitter.setAutoEmission(false)
@@ -224,4 +263,4 @@ if (Math.abs(scaledRectHit.worldX + 125.02) > 0.1 || Math.abs(scaledRectHit.worl
   throw new Error(`非等比矩形吸附面错误：实际命中 (${scaledRectHit.worldX}, ${scaledRectHit.worldY})`)
 }
 
-console.log('粒子事件校验通过：暖场 / 出生 / 死亡 / 碰撞 / 非等比矩形碰撞面 / 子发射器生成与禁用自动发射 / 属性继承 / 深度上限')
+console.log('粒子事件校验通过：暖场 / 出生 / 死亡 / 碰撞 / 非等比矩形碰撞面 / 持续发射 / 子发射器生成与禁用自动发射 / 属性继承 / 深度上限')

scripts/verify-spine-json.mjs

@@ -78,6 +78,13 @@ const source = `
     failures++
     console.error('骨骼池复用：死亡/复用边界应写阶跃关键帧，实际为 ' + JSON.stringify(poolStepped))
   }
+  const limitedResult = buildSpineJson({ systems: [poolSystem], timeline, settings: poolSettings, playbackEnd: 4 })
+  const limitedFramesAt = limitedResult.json.animations.animation.bones.verify_0.translate
+    .map((key) => Math.round(key.time * 30))
+  if (JSON.stringify(limitedFramesAt) !== JSON.stringify([0, 4])) {
+    failures++
+    console.error('导出范围：不应写出实际播放末端之后的关键帧，实际为 ' + JSON.stringify(limitedFramesAt))
+  }
 
   // 子发射器的帧从父事件时刻才开始，不能按自身生命周期从 0f 截断。
   const childFrames = Array.from({ length: 80 }, (_, frame) => (

scripts/verify-sub-emitter-timeline.mjs

@@ -28,35 +28,38 @@ const source = `
     probability: 1, collisionLimit: 1, inherit: [], colorInheritMode: 'add',
   }]
 
-  // 子发射器自身的 10s 发射时长不应算入时间轴。
+  // 持续子发射器每次事件都会运行自身的 10s 发射窗口。
   child.config.mode = 'stream'
   child.config.streamBehavior = 'normal'
   child.config.delay = 0
   child.config.duration = 10
   setLife(child, 1.5)
 
-  // 死亡触发：父粒子最晚 3s 死亡，子发射器再存活 1.5s → 4.5s。
+  // 死亡触发：父粒子最晚 3s 死亡，子发射器持续到 13s，粒子再存活 1.5s → 14.5s。
   let frames = store.recalcTotalFrames()
-  assert(frames === Math.ceil(4.5 * 30) + 1, '死亡子发射器时间轴错误：' + frames)
+  assert(frames === Math.ceil(14.5 * 30) + 1, '死亡子发射器时间轴错误：' + frames)
   const deathTiming = subEmitterTriggerTimings(store.systems, 30).get(child.id)
   assert(deathTiming && Math.abs(deathTiming.firstTrigger - 2) < 1e-6, '死亡子发射器起点应为第一次死亡 2s')
   assert(deathTiming && Math.abs(deathTiming.lastTrigger - 3) < 1e-6, '死亡子发射器最后触发应为 3s')
-  assert(deathTiming && Math.abs(deathTiming.end - 4.5) < 1e-6, '死亡子发射器终点应为 4.5s')
+  assert(deathTiming && Math.abs(deathTiming.end - 14.5) < 1e-6, '死亡子发射器终点应为 14.5s')
 
   // 子发射器自身 delay 在父事件之后继续延后发射。
   child.config.delay = 0.2
   frames = store.recalcTotalFrames()
-  assert(frames === Math.ceil(4.7 * 30) + 1, '子发射器延迟未计入时间轴：' + frames)
+  assert(frames === Math.ceil(14.7 * 30) + 1, '子发射器延迟未计入时间轴：' + frames)
+  const delayedTiming = subEmitterTriggerTimings(store.systems, 30).get(child.id)
+  assert(delayedTiming && Math.abs(delayedTiming.end - delayedTiming.firstTrigger - 0.2 - 12.5) < 1e-6,
+    '子发射器拖动延迟后，可见条长度不应包含 delay')
   child.config.delay = 0
 
-  // 出生触发：子发射器与父粒子同时开始，取较长者 2s → 3s。
+  // 出生触发：子发射器持续到 11s，粒子存活的 1.5s 继续至 12.5s。
   parent.config.events[0].event = 'birth'
   frames = store.recalcTotalFrames()
-  assert(frames === Math.ceil(3 * 30) + 1, '出生子发射器时间轴错误：' + frames)
+  assert(frames === Math.ceil(12.5 * 30) + 1, '出生子发射器时间轴错误：' + frames)
   const birthTiming = subEmitterTriggerTimings(store.systems, 30).get(child.id)
   assert(birthTiming && Math.abs(birthTiming.firstTrigger - 0) < 1e-6, '出生子发射器应从父粒子首次出生开始')
   assert(birthTiming && Math.abs(birthTiming.lastTrigger - 1) < 1e-6, '出生子发射器最后触发应为发射结束 1s')
-  assert(birthTiming && Math.abs(birthTiming.end - 2.5) < 1e-6, '出生子发射器终点应为 2.5s')
+  assert(birthTiming && Math.abs(birthTiming.end - 12.5) < 1e-6, '出生子发射器终点应为 12.5s')
 
   // 关闭“开启子发射器”后，保留的规则不应继续把目标标记为子发射器。
   parent.config.eventEnabled = false
@@ -71,6 +74,28 @@ const source = `
   frames = store.recalcTotalFrames()
   assert(frames === Math.ceil(11.5 * 30) + 1, '移除引用后时间轴错误：' + frames)
 
+  // 理论总长度可以预留最坏情况，但完整播放只到最后一个可见时间条的末端。
+  const grandchild = store.addSystem()
+  parent.config.mode = 'burst'
+  setLife(parent, 1)
+  parent.config.eventEnabled = true
+  parent.config.events = [{
+    id: 1, event: 'death', targetSystemId: child.id,
+    probability: 1, collisionLimit: 1, inherit: [], colorInheritMode: 'add',
+  }]
+  child.config.duration = 1
+  setLife(child, 1)
+  child.config.eventEnabled = true
+  child.config.events = [{
+    id: 1, event: 'collision', targetSystemId: grandchild.id,
+    probability: 1, collisionLimit: 1, inherit: [], colorInheritMode: 'add',
+  }]
+  grandchild.config.mode = 'burst'
+  setLife(grandchild, 1)
+  frames = store.recalcTotalFrames()
+  assert(frames === Math.ceil(4 * 30) + 1, '最坏情况总长度计算错误：' + frames)
+  assert(store.playbackRange.start === 0 && store.playbackRange.end === 90, '播放范围没有停在时间条末端')
+
   console.log('子发射器时间轴校验通过：死亡/出生触发与移除引用后的总长度')
 `
 

src/core/particleEmitter.ts

@@ -3,7 +3,7 @@ import { pathDistributionProgress, sampleEmitterShape, sampleEmissionVelocityAng
 import { TrailController, createTrailState, resetTrailState, type ParticleTrailState } from './particleTrail'
 import { pickImageResource, pickTrailResource, imageFrameState, imageFrameTexture } from './particleResources'
 
-import type { SceneCollider, EmitterConfig, ParticleState, ParticleInheritAttribute } from './particleTypes'
+import type { SceneCollider, EmitterConfig, EmitMode, ParticleState, ParticleInheritAttribute } from './particleTypes'
 import { defaultConfig, ensureEmitterConfig } from './particleConfig'
 import { BLEND_MAP, MAX_PARTICLES } from './particleConstants'
 import { lerp, finite, localToWorldMath, worldMathToLocal, localVelocityToWorldMath, worldVelocityToLocalMath, resolveColliderPoint, tFromLife, seededUnit, initialValue, overLifeValue, curveAt, mulberry32, hexToNumber, gradientColorAt, fieldFalloff, vortexAcceleration, addRgbColors } from './particleMath'
@@ -90,6 +90,19 @@ export interface ParticleInheritOptions {
   data: ParticleInheritData
 }
 
+interface EventEmission {
+  mode: EmitMode
+  worldX: number
+  worldY: number
+  depth: number
+  inherit?: ParticleInheritOptions
+  count: number
+  rate: number
+  remainingDelay: number
+  remainingDuration: number
+  accumulator: number
+}
+
 export class ParticleEmitter extends Container {
   private pool: Particle[] = []
   private cfg: EmitterConfig
@@ -103,15 +116,8 @@ export class ParticleEmitter extends Container {
   private _attractionWasEnabled = false
   /** 子发射器关闭自动发射，只接收父粒子事件生成的粒子。 */
   private autoEmission = true
-  /** 事件粒子延迟队列：子发射器 delay 表示在父事件之后再延迟多久发射。 */
-  private pendingEventSpawns: Array<{
-    worldX: number
-    worldY: number
-    depth: number
-    inherit?: ParticleInheritOptions
-    count: number
-    remaining: number
-  }> = []
+  /** 父事件启动的独立子发射窗口；持续模式会按 rate/duration 运行。 */
+  private eventEmissions: EventEmission[] = []
   /** 活动粒子状态快照(供骨架 / 导出) */
   states: ParticleState[] = []
   /** 粒子出生/死亡/碰撞事件回调（由 EmitterSync 接入跨系统事件）。 */
@@ -287,23 +293,8 @@ export class ParticleEmitter extends Container {
       }
     }
 
-    // 处理子发射器的延迟发射队列；新粒子在本帧就会参与后续更新与录制。
-    if (this.pendingEventSpawns.length && dt > 0) {
-      const ready: typeof this.pendingEventSpawns = []
-      const waiting: typeof this.pendingEventSpawns = []
-      for (const pending of this.pendingEventSpawns) {
-        pending.remaining -= dt
-        if (pending.remaining <= 0) ready.push(pending)
-        else waiting.push(pending)
-      }
-      this.pendingEventSpawns = waiting
-      for (const pending of ready) {
-        const local = worldMathToLocal(this.cfg, pending.worldX, pending.worldY, this.simulationTransform)
-        for (let index = 0; index < pending.count; index++) {
-          if (!this.spawnOne({ x: local.x, y: local.y }, pending.depth, pending.inherit)) break
-        }
-      }
-    }
+    // 新粒子在本帧就会参与后续更新与录制。
+    this.updateEventEmissions(dt)
 
     const states: ParticleState[] = []
     for (let i = 0; i < this.pool.length; i++) {
@@ -557,27 +548,72 @@ export class ParticleEmitter extends Container {
     }
   }
 
-  /** 由跨系统事件触发：在给定的数学世界坐标处生成一颗目标系统的粒子。 */
+  /** 由跨系统事件触发：爆发模式生成一次，持续模式启动一个独立发射窗口。 */
   spawnEventParticle(worldX: number, worldY: number, depth = 1, inherit?: ParticleInheritOptions, count?: number): boolean {
     if (depth > 2) return false
-    // 子发射器按自己的发射模式决定每次事件生成多少颗：爆发=单次数量，持续=1。
-    const requested = count ?? (this.cfg.mode === 'burst' ? this.cfg.burstCount : 1)
-    const total = Math.max(1, Math.min(MAX_PARTICLES, Math.round(Number(requested) || 1)))
-    // 子发射器 delay 表示在父事件之后再延迟多久发射。
-    const delay = Math.max(0, Number(this.cfg.delay) || 0)
-    if (delay > 0) {
-      this.pendingEventSpawns.push({ worldX, worldY, depth, inherit, count: total, remaining: delay })
-      return true
+    const duration = this.cfg.streamBehavior === 'loop'
+      ? Math.max(1 / 30, Number(this.cfg.loopDurationFrames) / 30 || 1 / 30)
+      : Math.max(1 / 30, Number(this.cfg.duration) || 0)
+    const emission: EventEmission = {
+      mode: this.cfg.mode,
+      worldX,
+      worldY,
+      depth,
+      inherit: inherit
+        ? { ...inherit, attributes: [...inherit.attributes], data: { ...inherit.data } }
+        : undefined,
+      count: Math.max(1, Math.min(MAX_PARTICLES, Math.round(Number(count ?? this.cfg.burstCount) || 1))),
+      rate: Math.max(0, Number(this.cfg.rate) || 0),
+      remainingDelay: Math.max(0, Number(this.cfg.delay) || 0),
+      remainingDuration: duration,
+      accumulator: 0,
     }
-    const local = worldMathToLocal(this.cfg, worldX, worldY, this.simulationTransform)
+    if (emission.mode === 'burst' && emission.remainingDelay <= 0) {
+      return this.spawnEventBurst(emission)
+    }
+    this.eventEmissions.push(emission)
+    return true
+  }
+
+  private spawnEventBurst(emission: EventEmission) {
+    const local = worldMathToLocal(this.cfg, emission.worldX, emission.worldY, this.simulationTransform)
     let spawned = false
-    for (let index = 0; index < total; index++) {
-      if (!this.spawnOne({ x: local.x, y: local.y }, depth, inherit)) break
+    for (let index = 0; index < emission.count; index++) {
+      if (!this.spawnOne({ x: local.x, y: local.y }, emission.depth, emission.inherit)) break
       spawned = true
     }
     return spawned
   }
 
+  private updateEventEmissions(dt: number) {
+    if (!this.eventEmissions.length || dt <= 0) return
+    const waiting: EventEmission[] = []
+    for (const emission of this.eventEmissions) {
+      if (emission.remainingDelay > 0) {
+        if (emission.remainingDelay > dt) {
+          emission.remainingDelay -= dt
+          waiting.push(emission)
+          continue
+        }
+        emission.remainingDelay = 0
+      }
+      if (emission.mode === 'burst') {
+        this.spawnEventBurst(emission)
+        continue
+      }
+      const activeTime = Math.min(dt, emission.remainingDuration)
+      emission.remainingDuration -= activeTime
+      emission.accumulator += activeTime * emission.rate
+      const local = worldMathToLocal(this.cfg, emission.worldX, emission.worldY, this.simulationTransform)
+      while (emission.accumulator >= 1) {
+        emission.accumulator -= 1
+        this.spawnOne({ x: local.x, y: local.y }, emission.depth, emission.inherit)
+      }
+      if (emission.remainingDuration > 1e-8) waiting.push(emission)
+    }
+    this.eventEmissions = waiting
+  }
+
   private emitWorldEvent(
     kind: ParticleEventKind,
     particle: Particle,
@@ -738,7 +774,7 @@ export class ParticleEmitter extends Container {
   }
 
   clear() {
-    this.pendingEventSpawns.length = 0
+    this.eventEmissions.length = 0
     for (const p of this.pool) {
       p.active = false
       p.sprite.visible = false
@@ -830,7 +866,7 @@ export class ParticleEmitter extends Container {
 
   /** 清空所有粒子并重置发射计时 */
   reset() {
-    this.pendingEventSpawns.length = 0
+    this.eventEmissions.length = 0
     for (const p of this.pool) {
       p.active = false
       p.sprite.visible = false
@@ -852,7 +888,7 @@ export class ParticleEmitter extends Container {
    * 发射计时与随机序列回到周期起点，使每一周期产生完全相同的发射事件。
    */
   restartEmissionCycle() {
-    this.pendingEventSpawns.length = 0
+    this.eventEmissions.length = 0
     this.accumulator = 0
     this.burstTimer = 0
     this._spawnSerial = 0

src/core/subEmitterTiming.ts

@@ -34,7 +34,7 @@ const numberOrZero = (value: unknown) => Math.max(0, Number(value) || 0)
 
 /**
  * 计算子发射器在时间轴上的实际活动区间：
- * 起点取第一次可能被触发的时刻，终点取最后一次触发 + 子粒子最大生命。
+ * 起点取第一次可能被触发的时刻，终点取最后一次触发 + 子发射持续时长 + 子粒子最大生命。
  * 触发时机：出生=父粒子出生时；死亡=最早/最晚死亡时；碰撞=出生到死亡之间。
  */
 export function subEmitterTriggerTimings(
@@ -66,13 +66,15 @@ export function subEmitterTriggerTimings(
 
   const emissionStart = (config: SubEmitterTimingSource['config']) => numberOrZero(config.delay)
   const delayOf = (config: SubEmitterTimingSource['config']) => numberOrZero(config.delay)
+  const emissionDuration = (config: SubEmitterTimingSource['config']) => {
+    if (config.mode !== 'stream') return 0
+    return config.streamBehavior === 'loop'
+      ? loopSegmentTiming(config as any, safeFps).total / safeFps
+      : Math.max(1 / safeFps, Number(config.duration) || 0)
+  }
   const emissionEnd = (config: SubEmitterTimingSource['config']) => {
     const delay = emissionStart(config)
-    if (config.mode !== 'stream') return delay
-    if (config.streamBehavior === 'loop') {
-      return delay + loopSegmentTiming(config as any, safeFps).total / safeFps
-    }
-    return delay + Math.max(1 / safeFps, Number(config.duration) || 0)
+    return delay + emissionDuration(config)
   }
   const lifeMinOf = (config: SubEmitterTimingSource['config']) => {
     const min = numberOrZero(config.lifeMin)
@@ -135,7 +137,9 @@ export function subEmitterTriggerTimings(
     result.set(id, {
       firstTrigger: first,
       lastTrigger: last,
-      end: Math.max(first, last) + lifeMaxOf(system.config),
+      end: Math.max(first, last) + numberOrZero(system.config.delay)
+        + emissionDuration(system.config)
+        + lifeMaxOf(system.config),
     })
   }
   return result

src/export/spineJsonExporter.ts

@@ -10,7 +10,7 @@ import { collectSubEmitterIds } from '../core/subEmitterIds'
 import { translate } from '../i18n'
 
 type Track = { key: string; name: string; states: Array<ParticleState | null> }
-type ExportInput = { systems: ParticleSystem[]; timeline: TimelineState; settings: SpineExportSettings }
+type ExportInput = { systems: ParticleSystem[]; timeline: TimelineState; settings: SpineExportSettings; playbackEnd?: number }
 
 const BLENDS = { normal: 'normal', add: 'additive', multiply: 'multiply', screen: 'screen' } as const
 const PARTICLE_POSITION_TOLERANCE = 0.1
@@ -343,9 +343,12 @@ export function buildSpineJson(input: ExportInput): SpineExportResult {
 
   for (const system of visibleSystems) {
     const frameLength = system.frames?.length || 0
+    const playbackFrameCount = Number.isFinite(input.playbackEnd)
+      ? Math.min(frameLength, Math.max(1, Math.floor(Number(input.playbackEnd)) + 1))
+      : frameLength
     const sourceCount = subEmitterIds.has(system.id)
-      ? frameLength
-      : Math.min(frameLength, particleDurationFrames(system, sourceFps))
+      ? playbackFrameCount
+      : Math.min(playbackFrameCount, particleDurationFrames(system, sourceFps))
     const frames = (system.frames || []).slice(0, sourceCount)
     if (!frames.length) warnings.push({ code: 'empty-cache', message: translate('errors.emptyCacheWarning', { name: system.config.name }) })
     const prefix = uniqueName(safeName(system.config.name, `system_${system.id}`), usedNames)

src/store/particleStore.ts

@@ -6,6 +6,7 @@ import { cloneEditorValue } from '../editor/editorClone'
 import { defaultSpineExportSettings, type SpineExportSettings } from '../export/spineExportSettings'
 import { loopSegmentTiming } from '../core/loopSegmentTiming'
 import { collectSubEmitterIds } from '../core/subEmitterIds'
+import { subEmitterTriggerTimings } from '../core/subEmitterTiming'
 import { lastFrameOfDuration, resizePlaybackRange, resolvePlaybackRange } from '../timeline/playbackRange'
 
 export interface ParticleSystem {
@@ -117,6 +118,52 @@ export interface TimelineState {
   animations: string[]
 }
 
+function timelineContentEndFrame(
+  systems: readonly any[],
+  spines: readonly any[],
+  colliders: readonly any[],
+  fps: number,
+) {
+  const safeFps = Math.max(1, fps || 30)
+  const subEmitterIds = collectSubEmitterIds(systems)
+  const subEmitterTiming = subEmitterTriggerTimings(systems as any, safeFps)
+  let endFrame = 1
+  for (const system of systems) {
+    const config = system.config
+    if (subEmitterIds.has(system.id)) {
+      const timing = subEmitterTiming.get(system.id)
+      if (timing) endFrame = Math.max(endFrame, lastFrameOfDuration(timing.end, safeFps))
+      continue
+    }
+    const delay = Math.max(0, Number(config.delay) || 0)
+    if (config.mode === 'stream' && config.streamBehavior === 'loop') {
+      endFrame = Math.max(endFrame, lastFrameOfDuration(delay + loopSegmentTiming(config as any, safeFps).total / safeFps, safeFps))
+      continue
+    }
+    const emission = config.mode === 'stream' ? Math.max(1 / safeFps, Number(config.duration) || 0) : 0
+    const life = config.lifeMode === 'fixed'
+      ? Math.max(0, Number(config.lifeMin) || 0)
+      : Math.max(0, Number(config.lifeMin) || 0, Number(config.lifeMax) || 0)
+    endFrame = Math.max(endFrame, lastFrameOfDuration(delay + emission + life, safeFps))
+  }
+  for (const spine of spines) {
+    const animation = spine.animations.find((item: any) => item.name === spine.selectedAnimation)
+    const duration = Math.max(0, Number(animation?.duration) || 0)
+    if (duration > 0) {
+      endFrame = Math.max(
+        endFrame,
+        lastFrameOfDuration(Math.max(0, Number(spine.timeOffset) || 0) + duration, safeFps),
+      )
+    }
+  }
+  for (const collider of colliders) {
+    if (collider.followPath && collider.followPathId) {
+      endFrame = Math.max(endFrame, lastFrameOfDuration(collider.followDuration, safeFps))
+    }
+  }
+  return endFrame
+}
+
 let seq = 1
 let colliderSeq = 1
 let pathSeq = 1
@@ -170,12 +217,17 @@ export const useParticleStore = defineStore('particle', {
   }),
   getters: {
     activeSystemCount: (s) => s.systems.length,
-    playbackRange: (s) => resolvePlaybackRange(
-      s.timeline.abLoop,
-      s.timeline.playbackStart,
-      s.timeline.playbackEnd,
-      s.timeline.totalFrames,
-    ),
+    playbackRange: (s) => {
+      const range = resolvePlaybackRange(
+        s.timeline.abLoop,
+        s.timeline.playbackStart,
+        s.timeline.playbackEnd,
+        s.timeline.totalFrames,
+      )
+      const contentEnd = timelineContentEndFrame(s.systems, s.spines, s.colliders, s.timeline.fps)
+      const end = Math.max(1, Math.min(range.end, contentEnd))
+      return { start: Math.min(range.start, end - 1), end }
+    },
   },
   actions: {
     syncSceneSequences() {
@@ -511,7 +563,7 @@ export const useParticleStore = defineStore('particle', {
     /** 依据所有粒子系统的"最晚消失时间"重算总帧数。
      *  固定生命周期使用 lifeMin；随机生命周期使用上下限中的较大值。
      *  单系统总时长 = delay + 持续模式 duration（爆发为 0）+ 最大粒子生命，
-     *  并递归计入子发射器链（出生立即触发、死亡/碰撞在最晚生命结束时触发）。
+     *  并递归计入子发射器的持续窗口与粒子链（出生立即触发、死亡/碰撞在最晚生命结束时触发）。
      *  多系统取最大;转帧 = ceil(sec * fps)。 */
     recalcTotalFrames() {
       const fps = Math.max(1, this.timeline.fps || 30)
@@ -523,6 +575,13 @@ export const useParticleStore = defineStore('particle', {
       const byId = new Map(this.systems.map((system) => [system.id, system]))
       const tailCache = new Map<number, number>()
       const visiting = new Set<number>()
+      const emissionDuration = (system: any) => {
+        const config = system.config
+        if (config.mode !== 'stream') return 0
+        return config.streamBehavior === 'loop'
+          ? loopSegmentTiming(config, fps).total / fps
+          : Math.max(1 / fps, Number(config.duration) || 0)
+      }
       /** 从一颗粒子出生算起，它及其子发射器链最晚持续多久。 */
       const effectTail = (system: any): number => {
         const cached = tailCache.get(system.id)
@@ -536,7 +595,7 @@ export const useParticleStore = defineStore('particle', {
           for (const rule of config.events || []) {
             const target = byId.get(rule.targetSystemId)
             if (!target || target.id === system.id) continue
-            const childTail = effectTail(target)
+            const childTail = emissionDuration(target) + effectTail(target)
             // 出生时立即触发；死亡/碰撞最晚发生在父粒子生命结束时。
             const offset = rule.event === 'birth' ? 0 : life
             // 子发射器自身的 delay 表示父事件之后再延迟多久发射。
@@ -559,10 +618,10 @@ export const useParticleStore = defineStore('particle', {
         const isLoop = c.mode === 'stream' && c.streamBehavior === 'loop'
         let end: number
         if (c.mode === 'stream') {
-          const emissionDuration = isLoop
+          const rootEmissionDuration = isLoop
             ? loopSegmentTiming(c, fps).total / fps
             : Math.max(1 / fps, Number(c.duration) || 0)
-          end = delay + emissionDuration
+          end = delay + rootEmissionDuration
           if (isLoop) {
             // 循环结束段已包含父系统自身消亡，只追加子发射器链的尾部时长。
             let childTail = 0
@@ -572,7 +631,13 @@ export const useParticleStore = defineStore('particle', {
                 const target = byId.get(rule.targetSystemId)
                 if (!target || target.id === system.id) continue
                 const targetDelay = Math.max(0, Number(target.config.delay) || 0)
-                childTail = Math.max(childTail, (rule.event === 'birth' ? 0 : life) + targetDelay + effectTail(target))
+                childTail = Math.max(
+                  childTail,
+                  (rule.event === 'birth' ? 0 : life)
+                    + targetDelay
+                    + emissionDuration(target)
+                    + effectTail(target),
+                )
               }
             }
             end += childTail

src/views/Timeline.vue

@@ -238,6 +238,9 @@ const playbackEndDraft = ref(String(store.timeline.playbackEnd))
 
 watch(() => store.timeline.playbackStart, (value) => { playbackStartDraft.value = String(value) })
 watch(() => store.timeline.playbackEnd, (value) => { playbackEndDraft.value = String(value) })
+watch(() => store.playbackRange.end, (end) => {
+  if (store.timeline.recorded && store.timeline.frame > end) store.timeline.frame = end
+}, { immediate: true })
 
 const totalFrames = computed(() => store.timeline.totalFrames)
 // 子发射器延长时间轴后自动扩大预览范围；用户手动放大后保持其缩放。
@@ -335,7 +338,8 @@ function barWidthPx(sys: SysLike): number {
     const timing = subEmitterTiming.value.get(sys.id)
     const start = timing?.firstTrigger ?? 0
     const end = timing?.end ?? start
-    return (Math.max(0, end - start) * fps.value) / pxPerF()
+    const delay = draftDelays.value[sys.id] ?? Math.max(0, Number((sys.config as any).delay) || 0)
+    return (Math.max(0, end - start - delay) * fps.value) / pxPerF()
   }
   return lifeWidthPx(sys)
 }
@@ -398,7 +402,7 @@ function onWheel(e: WheelEvent) {
   viewFrames.value = Math.round(nv)
 }
 
-// 拖动时间轴滑动(scrub):更新 frame(0..totalFrames-1)
+// 拖动时间轴滑动(scrub):只允许进入实际播放范围。
 function onScrubDown(e: PointerEvent) {
   const vp = vpRef.value!
   // 用户接管时间轴时立即暂停播放，否则每帧推进会和拖动抢播放头。
@@ -406,7 +410,7 @@ function onScrubDown(e: PointerEvent) {
   const move = (ev: PointerEvent) => {
     const rect = vp.getBoundingClientRect()
     const f = Math.floor(((ev.clientX - rect.left) / rect.width) * viewFrames.value)
-    store.timeline.frame = Math.max(0, Math.min(f, totalFrames.value - 1))
+    store.timeline.frame = Math.max(0, Math.min(f, store.playbackRange.end))
   }
   move(e)
   const up = () => { window.removeEventListener('pointermove', move); window.removeEventListener('pointerup', up) }

src/views/particle-panel/useParticleExport.ts

@@ -137,7 +137,12 @@ async function exportSpineJson() {
   exportMessage.value = t('export.recalculating')
   try {
     await prepareExportFrames()
-    const result = buildSpineJson({ systems: store.systems as unknown as ParticleSystem[], timeline: store.timeline, settings: exportSettings.value })
+    const result = buildSpineJson({
+      systems: store.systems as unknown as ParticleSystem[],
+      timeline: store.timeline,
+      settings: exportSettings.value,
+      playbackEnd: store.playbackRange.end,
+    })
     validateSpineJson(result.text, exportSettings.value.spineVersion)
     downloadSpineJson(result, exportSettings.value.fileName)
     const warning = result.warnings.length ? t('export.resourceWarning', { count: result.warnings.length }) : ''
@@ -170,7 +175,12 @@ async function exportSpineProject() {
     await transfer.paint()
     await prepareExportFrames((progress) => transfer.update(progress * 18, t('export.recalculating')))
     transfer.update(20, t('export.generatingJson'))
-    const result = buildSpineJson({ systems: store.systems as unknown as ParticleSystem[], timeline: store.timeline, settings: exportSettings.value })
+    const result = buildSpineJson({
+      systems: store.systems as unknown as ParticleSystem[],
+      timeline: store.timeline,
+      settings: exportSettings.value,
+      playbackEnd: store.playbackRange.end,
+    })
     validateSpineJson(result.text, exportSettings.value.spineVersion)
     exportMessage.value = t('export.preparingProject')
     const projectName = exportSettings.value.fileName.replace(/\.json$/i, '') || 'SpineParticle'