fix(repair-ebike): stop subtitle leak and fake cooling swap

src/components/three/gameplay/RepairEbikeRepairTrigger.tsx

@@ -1,34 +1,85 @@
+import { useState } from "react";
+import { GrabbableObject } from "@/components/three/interaction/GrabbableObject";
 import { TriggerObject } from "@/components/three/interaction/TriggerObject";
+import { RepairObjectModel } from "@/components/three/gameplay/RepairObjectModel";
 import { REPAIR_INTERACTION_RADIUS } from "@/data/gameplay/repairGameConfig";
 import type { Vector3Tuple } from "@/types/three/three";
 
 interface RepairEbikeRepairTriggerProps {
+  anchor: Vector3Tuple;
   onRepair: () => void;
 }
 
-const TRIGGER_POSITION: Vector3Tuple = [0, 1.4, 0];
+const REPLACEMENT_MODEL_PATH = "/models/refroidisseur/model.gltf";
+const TRIGGER_OFFSET: Vector3Tuple = [0, 0.9, 0];
 
 /**
- * Minimal interactable used for the ebike `repairing` step. Replaces
- * the heavier RepairRepairingStep (grabbable parts + placeholder
- * circles) with a single "Changez le refroidisseur" prompt. The
- * collider is invisible — the player just walks up and presses E.
+ * Ebike-specific fake replacement flow: the broken radiator node is
+ * hidden in the shared ExplodableModel, a grabbable copy appears at the
+ * same anchor, then pressing E respawns a fresh part with a halo before
+ * the reassembly step starts.
  */
 export function RepairEbikeRepairTrigger({
+  anchor,
   onRepair,
 }: RepairEbikeRepairTriggerProps): React.JSX.Element {
+  const [isInstalled, setIsInstalled] = useState(false);
+
+  function handleRepair(): void {
+    if (isInstalled) return;
+    setIsInstalled(true);
+    window.setTimeout(onRepair, 450);
+  }
+
   return (
+    <group>
+      {!isInstalled ? (
+        <GrabbableObject
+          position={anchor}
+          colliders="ball"
+          handControlled
+          label="Retirer le refroidisseur"
+        >
+          <RepairObjectModel
+            label="Refroidisseur"
+            modelPath={REPLACEMENT_MODEL_PATH}
+            scale={0.24}
+          />
+        </GrabbableObject>
+      ) : (
+        <group position={anchor}>
+          <RepairObjectModel
+            label="Refroidisseur"
+            modelPath={REPLACEMENT_MODEL_PATH}
+            scale={0.24}
+          />
+          <mesh>
+            <sphereGeometry args={[0.65, 32, 16]} />
+            <meshBasicMaterial color="#22c55e" transparent opacity={0.18} />
+          </mesh>
+          <mesh rotation={[Math.PI / 2, 0, 0]}>
+            <torusGeometry args={[0.72, 0.025, 8, 96]} />
+            <meshBasicMaterial color="#86efac" transparent opacity={0.85} />
+          </mesh>
+        </group>
+      )}
+
       <TriggerObject
-      position={TRIGGER_POSITION}
+        position={[
+          anchor[0] + TRIGGER_OFFSET[0],
+          anchor[1] + TRIGGER_OFFSET[1],
+          anchor[2] + TRIGGER_OFFSET[2],
+        ]}
         colliders="ball"
         label="Changez le refroidisseur"
         radius={REPAIR_INTERACTION_RADIUS}
-      onTrigger={onRepair}
+        onTrigger={handleRepair}
       >
         <mesh>
-        <sphereGeometry args={[0.6, 16, 16]} />
+          <sphereGeometry args={[0.55, 16, 16]} />
           <meshBasicMaterial colorWrite={false} depthWrite={false} />
         </mesh>
       </TriggerObject>
+    </group>
   );
 }

src/components/three/gameplay/RepairGame.tsx

@@ -16,6 +16,7 @@ import { RepairReassemblyStep } from "@/components/three/gameplay/RepairReassemb
 import { RepairScanSequence } from "@/components/three/gameplay/RepairScanSequence";
 import { REPAIR_CASE_MODEL_PATH } from "@/data/gameplay/repairCaseConfig";
 import {
+  REPAIR_FRAGMENT_SPLIT_DURATION_SECONDS,
   REPAIR_DONE_DIALOGUE_FALLBACK_MS,
   REPAIR_FRAGMENTATION_SEQUENCE_SECONDS,
   REPAIR_FRAGMENT_SPLIT_SPEED,
@@ -27,7 +28,11 @@ import { useRepairFragmentationInput } from "@/hooks/gameplay/useRepairFragmenta
 import { useRepairMissionStep } from "@/hooks/gameplay/useRepairMissionStep";
 import { useTerrainSnappedPosition } from "@/hooks/three/useTerrainHeight";
 import { loadDialogueManifest } from "@/utils/dialogues/loadDialogueManifest";
-import { playDialogueById } from "@/utils/dialogues/playDialogue";
+import {
+  clearQueuedDialogues,
+  playDialogueById,
+  stopCurrentDialogue,
+} from "@/utils/dialogues/playDialogue";
 import { useSubtitleStore } from "@/managers/stores/useSubtitleStore";
 import type {
   MissionStep,
@@ -128,6 +133,17 @@ export function RepairGame({
   );
   const isSplitPhase = (SPLIT_PHASES as readonly MissionStep[]).includes(step);
   const isRepairing = step === "repairing";
+  const ebikeBrokenNodeName = config.brokenParts[0]?.targetNodeName;
+  const ebikeBrokenWorldAnchor = ebikeBrokenNodeName
+    ? brokenAnchors[ebikeBrokenNodeName]
+    : undefined;
+  const ebikeBrokenLocalAnchor = ebikeBrokenWorldAnchor
+    ? ([
+        ebikeBrokenWorldAnchor[0] - snappedPosition[0],
+        ebikeBrokenWorldAnchor[1] - snappedPosition[1],
+        ebikeBrokenWorldAnchor[2] - snappedPosition[2],
+      ] satisfies Vector3Tuple)
+    : ([0, 1, 0] satisfies Vector3Tuple);
 
   useRepairFragmentationInput({
     enabled: mainState === mission && readyForFragmentation,
@@ -150,6 +166,15 @@ export function RepairGame({
     };
   }, [mainState, mission, step]);
 
+  useEffect(() => {
+    if (mission !== "ebike") return;
+    if (mainState === "ebike") return;
+
+    clearQueuedDialogues();
+    stopCurrentDialogue();
+    useSubtitleStore.getState().clearActiveSubtitle();
+  }, [mainState, mission]);
+
   // Drive the global focus bubble: active during the immersive repair
   // phases so the world dims/hides outside the dark sphere shroud.
   const focusCenterX = snappedPosition[0];
@@ -355,6 +380,7 @@ export function RepairGame({
             scale={config.modelScale ?? 1}
             split={isSplitPhase}
             splitSpeed={REPAIR_FRAGMENT_SPLIT_SPEED}
+            splitDurationSeconds={REPAIR_FRAGMENT_SPLIT_DURATION_SECONDS}
             onPartsReady={setExplodedParts}
             onSplitSettled={handleSplitSettled}
             {...(isRepairing
@@ -378,6 +404,7 @@ export function RepairGame({
         ) : null}
         {step === "repairing" && mission === "ebike" ? (
           <RepairEbikeRepairTrigger
+            anchor={ebikeBrokenLocalAnchor}
             onRepair={() => setMissionStep(mission, "reassembling")}
           />
         ) : null}
@@ -409,8 +436,8 @@ export function RepairGame({
             config={config}
             onPlaceholdersChange={setCasePlaceholders}
             onAnchorsChange={setCaseAnchors}
-            open={step === "repairing"}
-            zoomed={step === "repairing"}
+            open={mission !== "ebike" && step === "repairing"}
+            zoomed={mission !== "ebike" && step === "repairing"}
             showFragmentationPrompt={
               readyForFragmentation && mission !== "ebike"
             }

src/components/three/models/ExplodableModel.tsx

@@ -76,6 +76,7 @@ interface ExplodableModelInnerProps extends ModelTransformProps {
    * Defaults to ExplodedModel's internal default (6) when omitted.
    */
   splitSpeed?: number;
+  splitDurationSeconds?: number;
   onPartsReady?: (parts: readonly ExplodedPart[]) => void;
   /**
    * Fired once each time the explode/reassemble lerp converges on its
@@ -112,6 +113,7 @@ function ExplodableModelInner({
   scale = 1,
   splitDistance = 1.2,
   splitSpeed,
+  splitDurationSeconds,
   onPartsReady,
   onSplitSettled,
   hideNodeNames,
@@ -144,10 +146,13 @@ function ExplodableModelInner({
       // eslint-disable-next-line react-hooks/refs
       new ExplodedModel(model, {
         distance: splitDistance,
+        ...(splitDurationSeconds !== undefined
+          ? { durationSeconds: splitDurationSeconds }
+          : {}),
         ...(splitSpeed !== undefined ? { speed: splitSpeed } : {}),
         onSettled: handleSettled,
       }),
-    [model, splitDistance, splitSpeed, handleSettled],
+    [model, splitDistance, splitDurationSeconds, splitSpeed, handleSettled],
   );
   const parsedScale = toVector3Scale(scale);
   const anchorSignatureRef = useRef("");

src/data/gameplay/repairGameConfig.ts

@@ -10,6 +10,7 @@ export const REPAIR_REASSEMBLY_SECONDS = 1.4;
  * speed (6) finishes in ~0.5s which feels rushed.
  */
 export const REPAIR_FRAGMENT_SPLIT_SPEED = 1.8;
+export const REPAIR_FRAGMENT_SPLIT_DURATION_SECONDS = 1.5;
 /**
  * Delay between the end of the inverse-explosion (parts settled back to
  * their original positions) and the auto-transition to the `done` step.

src/data/gameplay/repairMissions.ts

@@ -38,7 +38,7 @@ export const REPAIR_MISSIONS: Record<RepairMissionId, RepairMissionConfig> = {
         label: "Cooling core",
         modelPath: "/models/refroidisseur/model.gltf",
         nodeName: "Radiateur",
-        targetNodeName: "refroidisseur",
+        targetNodeName: "Radiateur",
         caseSlotName: "placeholder_1",
         // Plays during the scan landing on the refroidisseur node;
         // the scan sequence advances on this audio's `ended` event.
@@ -51,7 +51,7 @@ export const REPAIR_MISSIONS: Record<RepairMissionId, RepairMissionConfig> = {
         label: "Refroidisseur",
         modelPath: "/models/refroidisseur/model.gltf",
         caseAnchor: "refroidisseur",
-        targetNodeName: "refroidisseur",
+        targetNodeName: "Radiateur",
       },
       {
         id: "ebike-cable-right-distractor",

src/utils/three/ExplodedModel.ts

@@ -9,6 +9,7 @@ export interface ExplodedPart {
 interface ExplodedModelOptions {
   distance?: number;
   speed?: number;
+  durationSeconds?: number;
   /**
    * Fired exactly once each time the lerp converges on a target value
    * (1 = fully exploded, 0 = fully reassembled). Useful for chaining
@@ -25,6 +26,7 @@ export class ExplodedModel {
   private readonly parts: ExplodedPart[] = [];
   private readonly distance: number;
   private readonly speed: number;
+  private readonly durationSeconds: number | undefined;
   private readonly onSettled?: (settledAt: 0 | 1) => void;
   private progress = 0;
   private targetProgress = 0;
@@ -33,6 +35,7 @@ export class ExplodedModel {
   constructor(model: THREE.Object3D, options: ExplodedModelOptions = {}) {
     this.distance = options.distance ?? 1.2;
     this.speed = options.speed ?? 6;
+    this.durationSeconds = options.durationSeconds;
     if (options.onSettled) this.onSettled = options.onSettled;
     this.parts = this.createParts(model);
   }
@@ -57,6 +60,10 @@ export class ExplodedModel {
         this.settledAtTarget = true;
         this.onSettled?.(this.targetProgress === 1 ? 1 : 0);
       }
+    } else if (this.durationSeconds !== undefined) {
+      const direction = diff > 0 ? 1 : -1;
+      this.progress += direction * (delta / this.durationSeconds);
+      this.progress = THREE.MathUtils.clamp(this.progress, 0, 1);
     } else {
       this.progress += diff * Math.min(delta * this.speed, 1);
     }