feat: implement acceleration, prevent bob from offsetting root pos

src/app/fear/page.css

@@ -1,4 +1,10 @@
 .canvas {
 	width: 100vw !important;
 	height: 100vh !important;
+	position: absolute;
+	top: 0;
+	left: 0;
+	outline: none;
+	user-select: none;
+	touch-action: none;
 }

src/app/fear/page.tsx

@@ -2,7 +2,7 @@
 
 import './page.css';
 
-import { Canvas, useThree } from "@react-three/fiber";
+import { Canvas, useFrame, useThree } from "@react-three/fiber";
 import { BrightnessContrast, EffectComposer, HueSaturation, Noise, Pixelation, Vignette } from "@react-three/postprocessing";
 import { Suspense, useEffect, useState } from "react";
 
@@ -53,6 +53,13 @@ function ListenerCreator() {
     return null;
 }
 
+function FearStateUpdater() {
+    useFrame((state, delta) => {
+        fearState.update(delta);
+    });
+    return null;
+}
+
 export default function Fear() {
     const [isRustActive, setIsRustActive] = useState(fearState.isRustActive);
     const [wasCaught, setWasCaught] = useState(fearState.isRustActive);
@@ -72,10 +79,13 @@ export default function Fear() {
             className='canvas'
             camera={{ position: [0, 3, -5], fov: 65, far: 100 }}
         >
+            <FearStateUpdater />
+
             <ListenerCreator />
 
             <color attach="background" args={['#050505']} />
 
+            <ambientLight intensity={0.0225} />
             <fogExp2 attach='fog' args={[0x050505, 0.035]} />
             <PostProcessing />
 
@@ -83,17 +93,25 @@ export default function Fear() {
                 <Hallway />
                 <TheCreature />
                 <Player />
+            </Suspense>
 
             <AmbientSound
+                key="ambient-1"
                 url='fear/snd/ambience.mp3'
                 volume={isRustActive ? 0 : 1}
             />
 
+            <AmbientSound
+                key="ambient-2"
+                url='fear/snd/ambience2.mp3'
+                volume={isRustActive ? 1 : 0}
+            />
+
             {wasCaught ? <AmbientSound
+                key="ambient-glitch"
                 url='fear/snd/glitch.mp3'
                 volume={1}
             /> : null}
-            </Suspense>
         </Canvas>
     </>)
 }

src/app/fear/scene-components/ambient-sound.tsx

@@ -7,13 +7,39 @@ interface AmbientSoundProps {
 
 export function AmbientSound({ url, volume = 0.5 }: AmbientSoundProps) {
     const audioRef = useRef<HTMLAudioElement | null>(null)
+    const targetVolumeRef = useRef<number>(volume)
+
+    targetVolumeRef.current = volume
 
     useEffect(() => {
         const audio = new Audio(url)
         audio.loop = true
+        audio.volume = 0 
         audioRef.current = audio
 
+        let componentsMounted = true
+
+        const attemptPlay = () => {
+            if (!audioRef.current || !componentsMounted) return
+            
+            audio.volume = targetVolumeRef.current
+
+            if (audio.volume > 0 && audio.paused) {
+                audio.play().catch((err) => {
+                    console.warn('Autoplay management holding clip playback execution.', err)
+                })
+            }
+        }
+
+        attemptPlay()
+
+        window.addEventListener('click', attemptPlay)
+        window.addEventListener('keydown', attemptPlay)
+
         return () => {
+            componentsMounted = false
+            window.removeEventListener('click', attemptPlay)
+            window.removeEventListener('keydown', attemptPlay)
             audio.pause()
             audio.src = ''
             audioRef.current = null
@@ -24,28 +50,13 @@ export function AmbientSound({ url, volume = 0.5 }: AmbientSoundProps) {
         const audio = audioRef.current
         if (!audio) return
 
-        audio.volume = volume
-
-        const startAudio = () => {
-            if (audio.volume > 0) {
-                audio.play().catch((err) => {
-                    console.warn('Autoplay blocked. Waiting for user interaction.', err)
-                })
-            }
-        }
-
         if (volume === 0) {
-            audio.pause()
+            if (!audio.paused) audio.pause()
         } else {
-            startAudio()
-
-            window.addEventListener('click', startAudio, { once: true })
-            window.addEventListener('keydown', startAudio, { once: true })
+            audio.volume = volume
+            if (audio.paused) {
+                audio.play().catch(() => {})
             }
-
-        return () => {
-            window.removeEventListener('click', startAudio)
-            window.removeEventListener('keydown', startAudio)
         }
     }, [volume]) 
 

src/app/fear/scene-components/creature.tsx

@@ -3,7 +3,9 @@ import { useFrame, useThree } from "@react-three/fiber";
 import { useEffect, useRef, useState } from "react";
 
 import * as THREE from "three";
-import { fearState } from "../state";
+import { FEAR_SETTINGS, fearState } from "../state";
+
+useTexture.preload('fear/img/creature.png');
 
 export default function TheCreature() {
     const texture = useTexture('fear/img/creature.png');
@@ -14,32 +16,30 @@ export default function TheCreature() {
     const [hasTriggered, setHasTriggered] = useState(false);
     const [isSpawned, setIsSpawned] = useState(false);
 
-    const speed = 15;
     const globalDistance = useRef<number>(32);
-    const [currentLoop, setCurrentLoop] = useState(fearState.loopCount);
+    const [finaleTriggered, setFinaleTriggered] = useState(fearState.finaleTriggered);
 
     const audioPlaying = useRef<boolean>(false);
 
     useEffect(() => {
         const unsubscribe = fearState.subscribe(() => {
-            setCurrentLoop(fearState.loopCount);
+            setFinaleTriggered(fearState.finaleTriggered);
 
-            if (fearState.loopCount < 4) {
+            if (!fearState.finaleTriggered) {
                 setIsSpawned(false);
                 setHasTriggered(false);
                 globalDistance.current = 32;
                 audioPlaying.current = false;
 
-                if (audioRef.current && audioRef.current.isPlaying) {
+                if (audioRef.current && audioRef.current.isPlaying)
                     audioRef.current.stop();
             }
-            }
         });
         return () => unsubscribe();
     }, []);
 
     useFrame((state, delta) => {
-        if (fearState.loopCount < 4) return;
+        if (!fearState.finaleTriggered) return;
 
         const creature = meshRef.current;
         if (!creature) return;
@@ -56,7 +56,7 @@ export default function TheCreature() {
         }
 
         if (hasTriggered) {
-            globalDistance.current -= speed * delta;
+            globalDistance.current -= FEAR_SETTINGS.CREATURE_SPEED * delta;
 
             if (audioRef.current && !audioPlaying.current) {
                 audioPlaying.current = true;
@@ -89,7 +89,7 @@ export default function TheCreature() {
     return (
         <mesh
             ref={meshRef}
-            visible={currentLoop >= 4}
+            visible={finaleTriggered}
         >
             <planeGeometry args={[3.0, 4.8]} />
             <meshBasicMaterial
@@ -99,7 +99,7 @@ export default function TheCreature() {
                 side={THREE.DoubleSide}
             />
 
-            {currentLoop >= 4 && (
+            {finaleTriggered && (
                 <PositionalAudio
                     url="fear/snd/riser.mp3"
                     ref={audioRef}

src/app/fear/scene-components/hallway.tsx

@@ -32,19 +32,21 @@ function Door({ position, rotation }: DoorProps) {
 
 export default function Hallway() {
     const [width, setWidth] = useState(fearState.currentWidth);
-    const [floorTex, wallTex, rustTex] = useTexture([
+    const [floorTex, wallTex, rustWallTex, rustFloorTex] = useTexture([
         'fear/img/concrete-floor.png',
         'fear/img/concrete-wall.png',
+        'fear/img/rust.png',
         'fear/img/rust.png'
     ]);
 
     useEffect(() => {
-        [floorTex, wallTex, rustTex].forEach((tex) => {
+        [floorTex, wallTex, rustWallTex, rustFloorTex].forEach((tex) => {
             tex.wrapS = tex.wrapT = THREE.RepeatWrapping;
             tex.minFilter = tex.magFilter = THREE.NearestFilter;
             tex.colorSpace = THREE.SRGBColorSpace;
         });
-    }, [floorTex, wallTex, rustTex]);
+    }, [floorTex, wallTex, rustWallTex, rustFloorTex]);
+
 
     const segmentPool = [0, 1, 2, 3, 4];
     const segmentCount = segmentPool.length;
@@ -80,10 +82,6 @@ export default function Hallway() {
     useFrame((state, delta) => {
         const time = state.clock.elapsedTime;
 
-        fearState.update(delta);
-        if (fearState.isRustActive !== isRustActive)
-            setIsRustActive(fearState.isRustActive);
-
         /*
            lights
         */
@@ -125,11 +123,13 @@ export default function Hallway() {
         const horizontalTexRepeat = width / FEAR_SETTINGS.HALLWAY_WIDTH;
         floorTex.repeat.set(horizontalTexRepeat, 10);
         wallTex.repeat.set(10, 1);
-        rustTex.repeat.set(horizontalTexRepeat, 10);
+        rustWallTex.repeat.set(10, 1);
+        rustFloorTex.repeat.set(horizontalTexRepeat, 10);
 
         floorTex.needsUpdate = true;
         wallTex.needsUpdate = true;
-        rustTex.needsUpdate = true;
+        rustWallTex.needsUpdate = true;
+        rustFloorTex.needsUpdate = true;
 
         let closestPoolIndex = 0;
         let minDistance = Infinity;
@@ -140,7 +140,6 @@ export default function Hallway() {
             let segmentZIndex = poolIndex - Math.floor(segmentCount / 2) + playerSegmentZ;
             segGroup.position.z = segmentZIndex * length;
 
-            // Track which pool index is currently physically closest to the player's camera position
             const distance = Math.abs(segGroup.position.z - state.camera.position.z);
             if (distance < minDistance) {
                 minDistance = distance;
@@ -197,10 +196,10 @@ export default function Hallway() {
         /*
             materials
         */
-        const updateMaterials = (materials: THREE.MeshStandardMaterial[], defaultTex: THREE.Texture, activeColor: string, defaultColor: string, activeRough: number, defaultRough: number, activeMetal: number, defaultMetal: number) => {
+        const updateMaterials = (materials: THREE.MeshStandardMaterial[], defaultTex: THREE.Texture, targetRustTex: THREE.Texture, activeColor: string, defaultColor: string, activeRough: number, defaultRough: number, activeMetal: number, defaultMetal: number) => {
             materials.forEach(mat => {
                 if (!mat) return;
-                const targetTex = isRustActive ? rustTex : defaultTex;
+                const targetTex = isRustActive ? targetRustTex : defaultTex;
                 if (mat.map !== targetTex) {
                     mat.map = targetTex;
                     mat.needsUpdate = true;
@@ -211,8 +210,8 @@ export default function Hallway() {
             });
         };
 
-        updateMaterials(wallMaterialsRef.current, wallTex, "#918a87", "#ffffff", 0.95, 0.7, 0.05, 0.1);
-        updateMaterials(floorMaterialsRef.current, floorTex, "#8b827f", "#ffffff", 0.95, 0.8, 0.05, 0.2);
+        updateMaterials(wallMaterialsRef.current, wallTex, rustWallTex, "#c5c0be", "#ffffff", 0.95, 0.7, 0.05, 0.1);
+        updateMaterials(floorMaterialsRef.current, floorTex, rustFloorTex, "#cabdb9", "#ffffff", 0.95, 0.8, 0.05, 0.2);
 
         pipeMaterialsRef.current.forEach(mat => {
             if (!mat) return;
@@ -231,8 +230,6 @@ export default function Hallway() {
 
     return (
         <>
-            <ambientLight intensity={0.0225} />
-
             {segmentPool.map((poolIndex) => (
                 <group
                     key={poolIndex}

src/app/fear/scene-components/player.tsx

@@ -2,13 +2,16 @@ import { useFrame, useThree } from "@react-three/fiber";
 import { useEffect, useRef } from "react";
 import { FEAR_SETTINGS, fearState } from "../state";
 import { PointerLockControls } from "@react-three/drei";
-
 import * as THREE from "three";
 
 const forward = new THREE.Vector3();
 const side = new THREE.Vector3();
-const direction = new THREE.Vector3();
 const viewDirection = new THREE.Vector3();
+const targetDest = new THREE.Vector3();
+
+const playerRoot = new THREE.Vector3(0, FEAR_SETTINGS.PLAYER_HEIGHT, 0);
+const targetVelocity = new THREE.Vector3();
+const currentVelocity = new THREE.Vector3();
 
 function usePlayerControls() {
     const keys = useRef({ Forward: false, Backward: false, Left: false, Right: false });
@@ -46,63 +49,77 @@ export default function Player() {
 
     const flashlightRef = useRef<THREE.SpotLight>(null);
     const movementCounter = useRef<number>(0);
+    const bobIntensity = useRef<number>(0);
 
     const confirmedSegment = useRef<number>(0);
     const hasTriggeredThisSegment = useRef<boolean>(false);
 
+    useEffect(() => {
+        playerRoot.set(camera.position.x, FEAR_SETTINGS.PLAYER_HEIGHT, camera.position.z);
+    }, []);
+
     useFrame((state, delta) => {
+        const dt = Math.min(delta, 0.1);
+
         camera.getWorldDirection(forward);
         forward.y = 0;
         forward.normalize();
-
-        side.crossVectors(forward, new THREE.Vector3(0, 1, 0)).normalize();
+        side.crossVectors(forward, THREE.Object3D.DEFAULT_UP).normalize();
 
         const moveForward = Number(controls.Forward) - Number(controls.Backward);
         const moveSide = Number(controls.Right) - Number(controls.Left);
 
-        direction.set(0, 0, 0);
-        if (moveForward !== 0) direction.addScaledVector(forward, moveForward);
-        if (moveSide !== 0) direction.addScaledVector(side, moveSide);
+        targetVelocity.set(0, 0, 0);
+        if (moveForward !== 0) targetVelocity.addScaledVector(forward, moveForward);
+        if (moveSide !== 0) targetVelocity.addScaledVector(side, moveSide);
 
-        if (direction.lengthSq() > 0)
-            direction.normalize().multiplyScalar(FEAR_SETTINGS.PLAYER_SPEED * delta);
+        if (targetVelocity.lengthSq() > 0) 
+            targetVelocity.normalize().multiplyScalar(FEAR_SETTINGS.PLAYER_SPEED);
 
-        camera.position.x += direction.x;
-        camera.position.z += direction.z;
+        currentVelocity.lerp(targetVelocity, 10 * dt);
+
+        playerRoot.x += currentVelocity.x * dt;
+        playerRoot.z += currentVelocity.z * dt;
+
+        const minX = -fearState.currentWidth / 2 + FEAR_SETTINGS.WALL_BUFFER;
+        const maxX = fearState.currentWidth / 2 - FEAR_SETTINGS.WALL_BUFFER;
+        playerRoot.x = THREE.MathUtils.clamp(playerRoot.x, minX, maxX);
 
         const isMoving = controls.Forward || controls.Backward || controls.Left || controls.Right;
-        if (isMoving) {
-            movementCounter.current += delta * 10;
-            camera.position.y = FEAR_SETTINGS.PLAYER_HEIGHT + Math.sin(movementCounter.current) * 0.08;
-            camera.position.x += Math.cos(movementCounter.current / 2) * 0.006;
-        } else {
-            const breatheTime = state.clock.elapsedTime * 1.5;
-            const breatheY = FEAR_SETTINGS.PLAYER_HEIGHT + Math.sin(breatheTime) * 0.1;
-            camera.position.y = THREE.MathUtils.lerp(camera.position.y, breatheY, 4 * delta);
-        }
+        
+        bobIntensity.current = THREE.MathUtils.lerp(bobIntensity.current, isMoving ? 1 : 0, 8 * dt);
+        
+        if (isMoving) 
+            movementCounter.current += dt * 12;
+
+        const moveBobY = Math.sin(movementCounter.current) * 0.06 * bobIntensity.current;
+        const moveBobX = Math.cos(movementCounter.current / 2) * 0.04 * bobIntensity.current;
+
+        const breatheTime = state.clock.elapsedTime * 1.8;
+        const breatheBobY = Math.sin(breatheTime) * 0.03 * (1 - bobIntensity.current * 0.5);
+
+        camera.position.copy(playerRoot);
+        camera.position.y += moveBobY + breatheBobY;
+        camera.position.addScaledVector(side, moveBobX);
 
         if (flashlightRef.current) {
             flashlightRef.current.position.copy(camera.position);
             camera.getWorldDirection(viewDirection);
 
-            const targetDest = new THREE.Vector3()
+            targetDest
                 .copy(camera.position)
                 .addScaledVector(viewDirection, 10);
 
-            flashlightRef.current.target.position.lerp(targetDest, 10 * delta);
+            flashlightRef.current.target.position.lerp(targetDest, 12 * dt);
             flashlightRef.current.target.updateMatrixWorld();
 
-            flashlightRef.current.intensity = 5 + Math.sin(state.clock.elapsedTime * 30) * 0.3;
+            flashlightRef.current.intensity = 
+                FEAR_SETTINGS.FLASHLIGHT_INTENSITY_BASE + 
+                Math.sin(state.clock.elapsedTime * 30) * 0.15 * Math.cos(state.clock.elapsedTime * 3);
         }
 
-        const minX = -fearState.currentWidth / 2 + FEAR_SETTINGS.WALL_BUFFER;
-        const maxX = fearState.currentWidth / 2 - FEAR_SETTINGS.WALL_BUFFER;
-
-        if (camera.position.x < minX) camera.position.x = minX;
-        if (camera.position.x > maxX) camera.position.x = maxX;
-
         const length = FEAR_SETTINGS.HALLWAY_LENGTH;
-        const absoluteZ = -camera.position.z;
+        const absoluteZ = -playerRoot.z; 
         const rawSegmentIndex = Math.floor(absoluteZ / length);
         const progressZ = ((absoluteZ % length) + length) % length / length;
 
@@ -121,8 +138,9 @@ export default function Player() {
             confirmedSegment.current = rawSegmentIndex;
         }
 
-        if (rawSegmentIndex === confirmedSegment.current && progressZ > 0.35 && progressZ < 0.65)
+        if (rawSegmentIndex === confirmedSegment.current && progressZ > 0.35 && progressZ < 0.65) {
             hasTriggeredThisSegment.current = false;
+        }
     });
 
     return (
@@ -130,11 +148,14 @@ export default function Player() {
             <PointerLockControls />
             <spotLight
                 ref={flashlightRef}
-                distance={22}
+                distance={25}
                 angle={0.35}
-                penumbra={0.7}
-                intensity={5}
+                penumbra={0.8}
+                intensity={0}
                 color="#fffaed"
+                decay={2}
+                castShadow
+                shadow-bias={-0.001}
             />
         </>
     );

src/app/fear/state.ts

@@ -6,7 +6,13 @@ export const FEAR_SETTINGS = {
     HALLWAY_HEIGHT: 5,
     PLAYER_HEIGHT: 3,
     PLAYER_SPEED: 4,
+    FLASHLIGHT_INTENSITY_BASE: 8,
     WALL_BUFFER: 0.6,
+    CREATURE_SPEED: 8,
+
+    EVENT_NARROW_LOOP_COUNT: 2,
+    EVENT_RUST_LOOP_COUNT: 4,
+    EVENT_FINALE_LOOP_COUNT: 5
 };
 
 const listeners = new Set<() => void>();
@@ -28,10 +34,7 @@ export const fearState = {
     },
 
     update(delta: number) {
-        this.isRustActive = this.loopCount >= 3;
-        this.finaleTriggered = this.loopCount >= 4;
-
-        const targetWidth = this.loopCount >= 2 ? 2.5 : FEAR_SETTINGS.HALLWAY_WIDTH;
+        const targetWidth = this.loopCount >= FEAR_SETTINGS.EVENT_NARROW_LOOP_COUNT ? 2.5 : FEAR_SETTINGS.HALLWAY_WIDTH;
         const newWidth = THREE.MathUtils.lerp(this.currentWidth, targetWidth, 2 * delta);
 
         if (Math.abs(this.currentWidth - newWidth) > 0.001) {
@@ -42,6 +45,10 @@ export const fearState = {
 
     registerLoop(direction: 'forward' | 'backward') {
         this.loopCount += 1;
+
+        this.isRustActive = this.loopCount >= FEAR_SETTINGS.EVENT_RUST_LOOP_COUNT;
+        this.finaleTriggered = this.loopCount >= FEAR_SETTINGS.EVENT_FINALE_LOOP_COUNT;
+
         this.emit();
     },