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ChooseYourOwnAdventure2

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Enhanced CYOA - 3D Interaction & Skills</title>
    <style>
        body { font-family: 'Courier New', monospace; background-color: #111; color: #eee; margin: 0; padding: 0; overflow: hidden; display: flex; flex-direction: column; height: 100vh; }
        #game-container { display: flex; flex-grow: 1; overflow: hidden; }
        #scene-container { flex-grow: 3; position: relative; border-right: 2px solid #444; min-width: 250px; background-color: #000; height: 100%; box-sizing: border-box; overflow: hidden; cursor: default; }
        #ui-container { flex-grow: 2; padding: 20px; overflow-y: auto; background-color: #2b2b2b; min-width: 350px; height: 100%; box-sizing: border-box; display: flex; flex-direction: column; }
        #scene-container canvas { display: block; }
        #story-title { color: #f0c060; margin: 0 0 15px 0; padding-bottom: 10px; border-bottom: 1px solid #555; font-size: 1.6em; text-shadow: 1px 1px 1px #000; }
        #story-content { margin-bottom: 20px; line-height: 1.7; flex-grow: 1; font-size: 1.1em; min-height: 100px; /* Ensure space */}
        #stats-inventory-container { margin-bottom: 15px; padding: 15px; border: 1px solid #444; border-radius: 4px; background-color: #333; font-size: 0.95em; }
        #stats-display, #inventory-display, #history-log { margin-bottom: 10px; line-height: 1.8; }
        #history-log { max-height: 150px; overflow-y: auto; border-top: 1px dashed #555; padding-top: 10px; font-size: 0.9em; color: #aaa; }
        #history-log strong { color: #ccc; }
        #history-log div { margin-bottom: 4px; }
        #stats-display span, #inventory-display .item-tag { display: inline-block; background-color: #484848; padding: 3px 9px; border-radius: 15px; margin: 0 8px 5px 0; border: 1px solid #6a6a6a; white-space: nowrap; box-shadow: inset 0 1px 2px rgba(0,0,0,0.3); }
        #stats-display strong, #inventory-display strong { color: #bbb; margin-right: 6px; }
        #inventory-display em { color: #888; font-style: normal; }
        .item-quest { background-color: #666030; border-color: #999048;}
        .item-weapon { background-color: #663030; border-color: #994848;}
        .item-armor { background-color: #306630; border-color: #489948;}
        .item-consumable { background-color: #664430; border-color: #996648;}
        .item-unknown { background-color: #555; border-color: #777;}
        #choices-container { margin-top: auto; padding-top: 15px; border-top: 1px solid #555; }
        #choices-container h3 { margin-top: 0; margin-bottom: 12px; color: #ccc; font-size: 1.1em; }
        #choices { display: flex; flex-direction: column; gap: 10px; }
        .choice-button { display: block; width: 100%; padding: 10px 15px; margin-bottom: 0; background-color: #555; color: #eee; border: 1px solid #777; border-radius: 4px; cursor: pointer; text-align: left; font-family: 'Courier New', monospace; font-size: 1.0em; transition: background-color 0.2s, border-color 0.2s, box-shadow 0.1s; box-sizing: border-box; }
        .choice-button:hover:not(:disabled) { background-color: #e0b050; color: #111; border-color: #c89040; box-shadow: 0 0 5px rgba(255, 200, 100, 0.5); }
        .choice-button:disabled { background-color: #404040; color: #777; cursor: not-allowed; border-color: #555; opacity: 0.7; }
        .message { padding: 8px 12px; margin-bottom: 1em; border-left-width: 3px; border-left-style: solid; font-size: 0.95em; background-color: rgba(255, 255, 255, 0.05); border-color: #666; color: #aaa;}
        .message-success { color: #8f8; border-left-color: #4a4; }
        .message-failure { color: #f88; border-left-color: #a44; }
        .message-info { color: #8af; border-left-color: #46a; }
        #action-info { position: absolute; bottom: 10px; left: 10px; background-color: rgba(0,0,0,0.7); color: #ffcc66; padding: 5px 10px; border-radius: 3px; font-size: 0.9em; display: block; z-index: 10;}
        /* Placement Preview Style */
        .placement-preview { opacity: 0.6; /* Make it semi-transparent */ }
    </style>
</head>
<body>
    <div id="game-container">
        <div id="scene-container">
             <div id="action-info">Initializing...</div>
        </div>
        <div id="ui-container">
            <h2 id="story-title">Initializing...</h2>
            <div id="story-content"><p>Loading assets...</p></div>
            <div id="stats-inventory-container">
                <div id="stats-display">HP: ?/? | XP: ? | STR: ? | DEX: ? | INT: ?</div>
                <div id="inventory-display">Inventory: Empty</div>
                <div id="history-log"><strong>History:</strong><div>Game Started.</div></div>
            </div>
            <div id="choices-container">
                <h3>What will you do?</h3>
                <div id="choices">Loading...</div>
            </div>
        </div>
    </div>

    <script type="importmap">
        { "imports": {
              "three": "https://unpkg.com/[email protected]/build/three.module.js",
              "three/addons/": "https://unpkg.com/[email protected]/examples/jsm/"
        }}
    </script>

    <script type="module">
        import * as THREE from 'three';
        import { OrbitControls } from 'three/addons/controls/OrbitControls.js';

        // --- DOM Elements ---
        const sceneContainer = document.getElementById('scene-container');
        const storyTitleElement = document.getElementById('story-title');
        const storyContentElement = document.getElementById('story-content');
        const choicesElement = document.getElementById('choices');
        const statsElement = document.getElementById('stats-display');
        const inventoryElement = document.getElementById('inventory-display');
        const historyElement = document.getElementById('history-log');
        const actionInfoElement = document.getElementById('action-info');

        // --- Three.js Variables ---
        let scene, camera, renderer, clock, controls, raycaster, mouse;
        let worldGroup = null;
        let zoneGroups = {}; // Stores { group, lighting, title, entryText, options, zoneId, items: [], interactables: [] }
        let currentLights = [];
        let playerAvatar = null;

        // --- Game State Variables ---
        let gameState = {};
        let currentMessage = "";
        let placementMode = false;
        let itemToPlace = null; // The name (key) of the item being placed
        let previewMesh = null;

        // --- Constants ---
        const MAP_ROWS = 5; // Increased for more zones
        const MAP_COLS = 4;
        const PLAYER_HEIGHT = 1.0; // For avatar y-position

        // --- Materials ---
        const MAT = {
            stone: new THREE.MeshStandardMaterial({ color: 0x777788, roughness: 0.85 }),
            wood: new THREE.MeshStandardMaterial({ color: 0x9F6633, roughness: 0.75 }),
            leaf: new THREE.MeshStandardMaterial({ color: 0x3E9B4E, roughness: 0.6, side: THREE.DoubleSide }),
            ground: new THREE.MeshStandardMaterial({ color: 0x556B2F, roughness: 0.95 }),
            dirt: new THREE.MeshStandardMaterial({ color: 0x8B5E3C, roughness: 0.9 }),
            grass: new THREE.MeshStandardMaterial({ color: 0x4CB781, roughness: 0.85 }),
            water: new THREE.MeshStandardMaterial({ color: 0x4682B4, roughness: 0.3, transparent: true, opacity: 0.85 }),
            sand: new THREE.MeshStandardMaterial({ color: 0xC2B280, roughness: 0.9 }),
            ice: new THREE.MeshStandardMaterial({ color: 0xadd8e6, roughness: 0.2, transparent: true, opacity: 0.9 }),
            portal: new THREE.MeshStandardMaterial({ color: 0x9933ff, emissive: 0x6600cc, roughness: 0.4, side: THREE.DoubleSide }),
            itemGeneric: new THREE.MeshStandardMaterial({ color: 0xffcc00, roughness: 0.5 }), // For pickup items
            preview: new THREE.MeshStandardMaterial({ color: 0x00ff00, transparent: true, opacity: 0.5, wireframe: true }), // For placement
            simple: new THREE.MeshStandardMaterial({ color: 0xaaaaaa, roughness: 0.8 }),
        };

        // --- Item Data ---
        const itemsData = {
            "Rusty Sword": {type:"weapon", description:"Old but sharp.", baseDamage: 3, meshGeo: new THREE.BoxGeometry(0.1, 0.8, 0.05), meshMat: MAT.simple.clone().set({color:0x999999})},
            "Health Potion": {type:"consumable", description:"Restores 10 HP.", effect: { hpGain: 10 }, meshGeo: new THREE.SphereGeometry(0.15, 8, 6), meshMat: MAT.simple.clone().set({color:0xff4444})},
            "Goblin Ear": {type:"quest", description:"A gruesome trophy.", meshGeo: new THREE.PlaneGeometry(0.2, 0.3), meshMat: MAT.simple.clone().set({color:0x55aa55})},
            "Cave Crystal": {type:"unknown", description:"A faintly glowing crystal shard.", meshGeo: new THREE.IcosahedronGeometry(0.2, 0), meshMat: MAT.simple.clone().set({color:0xaaaaff, emissive: 0x5555cc})},
            "Ancient Key": {type:"quest", description:"A large, ornate key.", meshGeo: new THREE.BoxGeometry(0.05, 0.3, 0.05), meshMat: MAT.simple.clone().set({color:0xccaa00})},
        };

        // --- Zone Creation ---
        const zoneCreators = {}; // Populated later

        function initThreeJS() {
            scene = new THREE.Scene();
            scene.background = new THREE.Color(0x1a1a1a);
            clock = new THREE.Clock();
            raycaster = new THREE.Raycaster();
            mouse = new THREE.Vector2();
            worldGroup = new THREE.Group();
            scene.add(worldGroup);

            // Add Player Avatar
            const avatarGeo = new THREE.CapsuleGeometry(0.3, PLAYER_HEIGHT - 0.6, 4, 10);
            playerAvatar = new THREE.Mesh(avatarGeo, new THREE.MeshStandardMaterial({ color: 0xeeeeff, roughness: 0.7 }));
            playerAvatar.position.y = PLAYER_HEIGHT / 2; // Center it vertically
            playerAvatar.castShadow = true;
            // Don't add to worldGroup directly, add to current zone's group later if needed or keep separate
            scene.add(playerAvatar); // Keep it at scene root for now

            const width = sceneContainer.clientWidth || 1;
            const height = sceneContainer.clientHeight || 1;
            camera = new THREE.PerspectiveCamera(60, width / height, 0.1, 1000);
            camera.position.set(0, 6, 8); // Slightly different starting view

            renderer = new THREE.WebGLRenderer({ antialias: true });
            renderer.setSize(width, height);
            renderer.shadowMap.enabled = true;
            renderer.shadowMap.type = THREE.PCFSoftShadowMap;
            renderer.toneMapping = THREE.ACESFilmicToneMapping;
            renderer.outputColorSpace = THREE.SRGBColorSpace;
            sceneContainer.appendChild(renderer.domElement);

            controls = new OrbitControls(camera, renderer.domElement);
            controls.enableDamping = true;
            controls.dampingFactor = 0.1;
            controls.target.set(0, PLAYER_HEIGHT / 2, 0); // Target the avatar's center
            controls.maxPolarAngle = Math.PI / 2 - 0.05;
            controls.minDistance = 2;
            controls.maxDistance = 25;

            window.addEventListener('resize', onWindowResize, false);
            sceneContainer.addEventListener('click', handleRaycast, false); // Use scene container for clicks
            document.addEventListener('keydown', handleKeyPress); // Listen for key presses globally
            setTimeout(onWindowResize, 50);
            animate();
        }

        function onWindowResize() {
             if (!renderer || !camera || !sceneContainer) return;
             const width = sceneContainer.clientWidth || 1;
             const height = sceneContainer.clientHeight || 1;
             camera.aspect = width / height;
             camera.updateProjectionMatrix();
             renderer.setSize(width, height);
        }

        function animate() {
            requestAnimationFrame(animate);
            const delta = clock.getDelta();
            controls.update();

            // Update placement preview position if active
            if (placementMode && previewMesh) {
                updatePreviewMesh();
            }

            // Simple animation example (e.g., make portals pulse)
             worldGroup.traverse(child => {
                 if (child.userData?.isPortal) {
                     child.material.emissiveIntensity = Math.sin(clock.elapsedTime * 3) * 0.5 + 0.7;
                 }
                 if (child.userData?.isItem && child.userData.itemName === "Cave Crystal") {
                     child.rotation.y += delta * 0.5;
                 }
             });


            if (renderer && scene && camera) renderer.render(scene, camera);
        }

        function createMesh(geometry, material, pos = {x:0,y:0,z:0}, rot = {x:0,y:0,z:0}, scale = {x:1,y:1,z:1}) {
             const mesh = new THREE.Mesh(geometry, material);
             mesh.position.set(pos.x, pos.y, pos.z);
             mesh.rotation.set(rot.x, rot.y, rot.z);
             mesh.scale.set(scale.x, scale.y, scale.z);
             mesh.castShadow = true; mesh.receiveShadow = true;
             return mesh;
        }

        function createGround(material = MAT.ground, size = 20) {
             const geo = new THREE.PlaneGeometry(size, size);
             const ground = new THREE.Mesh(geo, material);
             ground.rotation.x = -Math.PI / 2; ground.position.y = 0;
             ground.receiveShadow = true; ground.castShadow = false; // Ground doesn't cast shadows
             ground.userData.isGround = true; // Mark for raycasting
             return ground;
        }

        function setupLighting(type = 'default') {
            currentLights.forEach(light => {
                 if (light && light.parent) light.parent.remove(light);
                 if (light && !light.parent) scene.remove(light); // Remove from scene if not parented
             });
             currentLights = [];

             let ambientIntensity = 0.6;
             let dirIntensity = 1.0;
             let dirColor = 0xffffff;
             let dirPosition = new THREE.Vector3(10, 15, 8);
             let needsPointLight = false;
             let pointLightInfo = { color: 0xffaa55, intensity: 1.5, distance: 12, decay: 1, pos: {x:0, y:3, z:0} };

             if (type === 'forest') { ambientIntensity = 0.4; dirIntensity = 0.8; dirColor = 0xccffcc; dirPosition = new THREE.Vector3(5, 10, 5); }
             if (type === 'cave') {
                 ambientIntensity = 0.15; dirIntensity = 0; // No sun in cave
                 needsPointLight = true;
             }
             if (type === 'ruins') { ambientIntensity = 0.5; dirIntensity = 0.7; dirColor = 0xaaaaff; dirPosition = new THREE.Vector3(-8, 12, -5); }
             if (type === 'desert') { ambientIntensity = 0.7; dirIntensity = 1.5; dirColor = 0xffffcc; dirPosition = new THREE.Vector3(15, 20, 10); }
             if (type === 'mountain') { ambientIntensity = 0.6; dirIntensity = 1.2; dirColor = 0xddddff; dirPosition = new THREE.Vector3(0, 25, 15); }

             const ambientLight = new THREE.AmbientLight(0xffffff, ambientIntensity);
             scene.add(ambientLight); // Ambient always added to scene
             currentLights.push(ambientLight);

             if (dirIntensity > 0) {
                 const directionalLight = new THREE.DirectionalLight(dirColor, dirIntensity);
                 directionalLight.position.copy(dirPosition);
                 directionalLight.castShadow = true;
                 directionalLight.shadow.mapSize.set(1024*2, 1024*2); // Higher res shadow map
                 directionalLight.shadow.camera.near = 0.5; directionalLight.shadow.camera.far = 60; // Increased range
                 const sb = 25; // Increased shadow box size
                 directionalLight.shadow.camera.left = -sb; directionalLight.shadow.camera.right = sb;
                 directionalLight.shadow.camera.top = sb; directionalLight.shadow.camera.bottom = -sb;
                 directionalLight.shadow.bias = -0.0005;
                 scene.add(directionalLight); // Directional always added to scene
                 // const helper = new THREE.CameraHelper( directionalLight.shadow.camera ); scene.add( helper ); // Debug Shadow Camera
                 currentLights.push(directionalLight);
             }

             if (needsPointLight) {
                 const ptLight = new THREE.PointLight(pointLightInfo.color, pointLightInfo.intensity, pointLightInfo.distance, pointLightInfo.decay);
                 ptLight.position.set(pointLightInfo.pos.x, pointLightInfo.pos.y, pointLightInfo.pos.z);
                 ptLight.castShadow = true;
                 ptLight.shadow.mapSize.set(512, 512);
                 ptLight.shadow.bias = -0.005; // Point lights might need more bias adjustment
                 // Will be added to the zone group later
                 currentLights.push(ptLight); // Track it
             }
        }

        // --- Zone Creation Functions (Add more for your 20 environments) ---

        function createFieldZone(zoneId) {
            const group = new THREE.Group();
            group.add(createGround(MAT.grass, 30));
            const rockGeo = new THREE.IcosahedronGeometry(0.5 + Math.random()*0.5, 0);
            for(let i=0; i<5; i++) {
                 group.add(createMesh(rockGeo, MAT.stone, {x: (Math.random()-0.5)*25, y:0.3, z: (Math.random()-0.5)*25}));
            }
             // Add an item
            const potion = createMesh(itemsData["Health Potion"].meshGeo, itemsData["Health Potion"].meshMat, {x: 3, y: 0.2, z: 2});
            potion.userData = { isItem: true, itemName: "Health Potion" };
            group.add(potion);

            group.visible = false;
            return { group, lighting: 'default', title: "Open Field", entryText: "You stand in an open, grassy field. A small red potion lies nearby.", options: [
                { text: "Look for interesting plants (INT)", action: 'skillCheck', skill: 'int', difficulty: 10, successText: "You spot some edible herbs!", failureText:"Just grass.", reward: { item: "Health Potion" } } // Example skill check
            ], zoneId: zoneId, items: [potion], interactables: [] }; // Track items in zone
        }

        function createForestZone(zoneId) {
            const group = new THREE.Group();
            group.add(createGround(MAT.ground, 30));
            const trunkGeo = new THREE.CylinderGeometry(0.2, 0.3, 4, 8);
            const leafGeo = new THREE.SphereGeometry(1.5, 8, 6);
            for(let i=0; i<25; i++) {
                 const x = (Math.random() - 0.5) * 28;
                 const z = (Math.random() - 0.5) * 28;
                 if(Math.sqrt(x*x+z*z) < 1) continue;
                 const tree = new THREE.Group();
                 const trunk = createMesh(trunkGeo, MAT.wood, {y: 2});
                 const leaves = createMesh(leafGeo, MAT.leaf, {y: 4.5});
                 tree.add(trunk); tree.add(leaves);
                 tree.position.set(x, 0, z);
                 tree.rotation.y = Math.random() * Math.PI * 2;
                 group.add(tree);
            }
             // Add an item
             const sword = createMesh(itemsData["Rusty Sword"].meshGeo, itemsData["Rusty Sword"].meshMat, {x: -4, y: 0.5, z: -1}, {z: Math.PI/2});
             sword.userData = { isItem: true, itemName: "Rusty Sword" };
             group.add(sword);

            group.visible = false;
            return { group, lighting: 'forest', title: "Dark Forest", entryText: "Sunlight is sparse beneath the thick canopy. An old sword rests against a tree.", options: [
                { text: "Search for tracks (INT)", action: 'skillCheck', skill: 'int', difficulty: 12, successText: "You find signs of goblin passage.", failureText:"The forest floor reveals little." }
            ], zoneId: zoneId, items: [sword], interactables: [] };
        }

        function createCaveZone(zoneId) {
            const group = new THREE.Group();
            group.add(createGround(MAT.stone.clone().set({color: 0x555560}), 18));
             const wallGeo = new THREE.SphereGeometry(12, 32, 16, 0, Math.PI*2, 0, Math.PI*0.7);
             const walls = createMesh(wallGeo, MAT.stone, {y: 4});
             walls.material.side = THREE.BackSide;
             walls.material.receiveShadow = true; // Cave walls should receive shadow
             walls.castShadow = false;
             group.add(walls);
             const coneGeo = new THREE.ConeGeometry(0.2, 1.0, 8);
             for(let i=0; i<15; i++){
                 const st = createMesh(coneGeo, MAT.stone, {x: (Math.random()-0.5)*16, y: 6 + Math.random()*2, z: (Math.random()-0.5)*16}, {x:Math.PI});
                 group.add(st);
                 const sb = createMesh(coneGeo, MAT.stone, {x: (Math.random()-0.5)*16, y: 0.5, z: (Math.random()-0.5)*16});
                 group.add(sb);
             }
             // Add an item
             const crystal = createMesh(itemsData["Cave Crystal"].meshGeo, itemsData["Cave Crystal"].meshMat, {x: 1, y: 0.8, z: -3});
             crystal.userData = { isItem: true, itemName: "Cave Crystal" };
             crystal.material.emissiveIntensity = 0.8; // Make it glow slightly
             group.add(crystal);

             group.visible = false;
             return { group, lighting: 'cave', title: "Dim Cave", entryText: "It's dark and damp. Water drips. A crystal glimmers faintly.", options: [
                { text: "Squeeze through a narrow gap (DEX)", action: 'skillCheck', skill: 'dex', difficulty: 14, successText: "You manage to wiggle through!", failureText:"You're too clumsy and get stuck briefly.", targetZoneId: 'zone_SPECIAL_SECRET' } // Example transition on success
             ], zoneId: zoneId, items: [crystal], interactables: [] };
        }

         function createRuinsZone(zoneId) {
             const group = new THREE.Group();
             group.add(createGround(MAT.dirt, 25));
             const wallGeo = new THREE.BoxGeometry(0.5, 2, 3);
             for(let i=0; i<8; i++) {
                 const wall = createMesh(wallGeo, MAT.stone,
                       {x: (Math.random()-0.5)*20, y:1, z: (Math.random()-0.5)*20},
                       {y: Math.random() * Math.PI}
                 );
                 wall.scale.y = 0.5 + Math.random() * 0.8;
                 wall.rotation.x = (Math.random()-0.5)*0.1;
                 wall.rotation.z = (Math.random()-0.5)*0.1;
                 group.add(wall);
             }
             // Add an interactable portal (Example of interactive movement point)
             const portalGeo = new THREE.RingGeometry(0.8, 1.2, 16);
             const portal = createMesh(portalGeo, MAT.portal, {x: 5, y: 1.5, z: -5}, {y: Math.PI/4});
             portal.userData = { isPortal: true, targetZoneId: getZoneId(0,0) }; // Example: links back to forest
             group.add(portal);

             group.visible = false;
             return { group, lighting: 'ruins', title: "Crumbling Ruins", entryText: "The wind whistles through broken walls. A strange shimmering portal hangs in the air.", options: [
                { text: "Try to decipher markings (INT)", action: 'skillCheck', skill: 'int', difficulty: 13, successText: "You recognize ancient symbols hinting at a hidden path.", failureText:"The markings are meaningless scratches." }
             ], zoneId: zoneId, items: [], interactables: [portal] };
         }

         function createDesertZone(zoneId) {
            const group = new THREE.Group();
            group.add(createGround(MAT.sand, 40));
            // Add some dunes (simple sine wave bumps)
            const duneGeo = new THREE.PlaneGeometry(40, 40, 20, 20);
            const posAttr = duneGeo.attributes.position;
            for (let i = 0; i < posAttr.count; i++) {
                const x = posAttr.getX(i);
                const z = posAttr.getZ(i);
                posAttr.setY(i, Math.sin(x * 0.2) * Math.cos(z * 0.3) * 0.8); // Simple dune formula
            }
            duneGeo.computeVertexNormals();
            const dunes = new THREE.Mesh(duneGeo, MAT.sand);
            dunes.rotation.x = -Math.PI / 2;
            dunes.receiveShadow = true;
            dunes.castShadow = false;
            dunes.userData.isGround = true; // Mark for raycasting
            group.add(dunes); // Replace flat ground with dunes

            // Add a key item
            const key = createMesh(itemsData["Ancient Key"].meshGeo, itemsData["Ancient Key"].meshMat, {x: -2, y: 0.2 + Math.sin(-2*0.2)*Math.cos(1*0.3)*0.8, z: 1}); // Place on dune surface
            key.userData = { isItem: true, itemName: "Ancient Key" };
            group.add(key);

            group.visible = false;
            return { group, lighting: 'desert', title: "Scorching Desert", entryText: "Endless dunes stretch under a blazing sun. Something glints in the sand.", options: [
                 { text: "Endure the heat (STR - passive check?)", action: 'message', messageText:"The heat is oppressive but bearable for now." }, // Example passive/flavor option
            ], zoneId: zoneId, items: [key], interactables: [] };
         }

         function createMountainZone(zoneId) {
            const group = new THREE.Group();
            group.add(createGround(MAT.stone.clone().set({color: 0x9999aa}), 35)); // Rocky ground

            // Add jagged peaks
            const peakGeo = new THREE.ConeGeometry(3, 8, 8);
            for (let i=0; i<5; i++) {
                const peak = createMesh(peakGeo, MAT.stone.clone().set({color: 0xbbbbcc}),
                    {x: (Math.random()-0.5)*30, y: 4, z: (Math.random()-0.5)*30},
                    {x: (Math.random()-0.5)*0.2, z: (Math.random()-0.5)*0.2} // Slightly tilted
                );
                peak.scale.set(1 + Math.random(), 1 + Math.random()*1.5, 1 + Math.random());
                group.add(peak);
            }
             // Add icy patches
            const iceGeo = new THREE.PlaneGeometry(5,5);
            const icePatch = new THREE.Mesh(iceGeo, MAT.ice);
            icePatch.rotation.x = -Math.PI/2;
            icePatch.position.set(4, 0.1, -6); // Slightly above ground
            icePatch.receiveShadow = true;
            group.add(icePatch);

            group.visible = false;
            return { group, lighting: 'mountain', title: "Jagged Peaks", entryText: "Sharp rocks and biting wind dominate this high altitude pass. Patches of ice make footing treacherous.", options: [
                { text: "Climb a rocky outcrop (STR)", action: 'skillCheck', skill: 'str', difficulty: 14, successText: "You scale the rock, getting a better view!", failureText:"You slip and nearly fall. Best stay on the path." }
            ], zoneId: zoneId, items: [], interactables: [] };
         }

         // --- Utility Functions ---

         function getZoneId(row, col) { return `zone_${row}_${col}`; }

         function populateZoneCreators() {
            const creators = [
                createForestZone, createFieldZone, createCaveZone, createRuinsZone, createDesertZone, createMountainZone
                // Add ALL your 20 creator functions here
            ];
            let creatorIndex = 0;
            for (let r = 0; r < MAP_ROWS; r++) {
                for (let c = 0; c < MAP_COLS; c++) {
                    const zoneId = getZoneId(r, c);
                    // Cycle through the available creators - Customize this logic!
                    const creatorFunc = creators[creatorIndex % creators.length];
                    zoneCreators[zoneId] = () => creatorFunc(zoneId);
                    creatorIndex++;
                }
            }
            console.log(`Zone creators populated for ${MAP_ROWS}x${MAP_COLS} grid.`);
         }

         function getZoneNeighbors(zoneId) {
            const parts = zoneId.split('_');
            if (parts.length !== 3 || parts[0] !== 'zone') return {};
            const r = parseInt(parts[1]);
            const c = parseInt(parts[2]);
            const neighbors = {};
            // Check bounds and if the zone exists in the creators map
            if (r > 0 && zoneCreators[getZoneId(r - 1, c)]) neighbors.north = getZoneId(r - 1, c);
            if (r < MAP_ROWS - 1 && zoneCreators[getZoneId(r + 1, c)]) neighbors.south = getZoneId(r + 1, c);
            if (c > 0 && zoneCreators[getZoneId(r, c - 1)]) neighbors.west = getZoneId(r, c - 1);
            if (c < MAP_COLS - 1 && zoneCreators[getZoneId(r, c + 1)]) neighbors.east = getZoneId(r, c + 1);
            return neighbors;
         }

        function logEvent(message) {
            if (!gameState.character || !gameState.character.history) return;
            gameState.character.history.push(message);
            // Optional: Limit history size
            // if (gameState.character.history.length > 20) {
            //     gameState.character.history.shift();
            // }
            updateHistoryDisplay(); // Update UI immediately
        }

        // --- Game Logic ---

        function startGame() {
            const defaultChar = {
                 name: "Adventurer",
                 stats: { hp: 25, maxHp: 25, xp: 0, str: 10, dex: 10, int: 10 }, // Added stats
                 inventory: [],
                 history: ["Game Started."] // Initialize history
            };
            gameState = {
                 currentZoneId: null,
                 character: JSON.parse(JSON.stringify(defaultChar))
            };
            populateZoneCreators();
            zoneGroups = {}; // Clear existing zones if restarting
             while(worldGroup.children.length > 0){
                 worldGroup.remove(worldGroup.children[0]);
             }
             // Reset placement mode if game restarts
             placementMode = false;
             itemToPlace = null;
             if (previewMesh) {
                 scene.remove(previewMesh);
                 previewMesh = null;
             }

            console.log("Starting new game:", gameState);
            transitionToZone(getZoneId(MAP_ROWS-1, Math.floor(MAP_COLS/2))); // Start near bottom-center
        }

        function transitionToZone(newZoneId) {
            console.log(`Transitioning to ${newZoneId}`);
            currentMessage = ""; // Clear messages on zone change

            if (gameState.currentZoneId && zoneGroups[gameState.currentZoneId]) {
                 zoneGroups[gameState.currentZoneId].group.visible = false;
                 // Remove zone-specific lights from the old group before hiding
                 currentLights.forEach(light => {
                     if (light && light.isPointLight && light.parent === zoneGroups[gameState.currentZoneId].group) {
                         zoneGroups[gameState.currentZoneId].group.remove(light);
                     }
                 });
            }

            let zoneInfo;
            if (zoneGroups[newZoneId]) {
                 zoneInfo = zoneGroups[newZoneId];
                 zoneInfo.group.visible = true;
                 console.log(`Re-entering zone ${newZoneId}`);
                 logEvent(`Entered ${zoneInfo.title || newZoneId}.`);
            } else {
                 const creator = zoneCreators[newZoneId];
                 if (creator) {
                     zoneInfo = creator();
                     zoneGroups[newZoneId] = zoneInfo;
                     worldGroup.add(zoneInfo.group);
                     zoneInfo.group.visible = true;
                     console.log(`Created and entered zone ${newZoneId}`);
                     logEvent(`Discovered and entered ${zoneInfo.title || newZoneId}.`);
                 } else {
                     console.error(`No creator found for zone ID: ${newZoneId}, going to fallback`);
                      const fallbackId = getZoneId(MAP_ROWS-1, Math.floor(MAP_COLS/2)); // Fallback start
                      if (!zoneGroups[fallbackId]) { // Ensure fallback exists
                          zoneGroups[fallbackId] = zoneCreators[fallbackId]();
                          worldGroup.add(zoneGroups[fallbackId].group);
                      }
                      zoneInfo = zoneGroups[fallbackId];
                      zoneInfo.group.visible = true;
                      newZoneId = fallbackId;
                      currentMessage = `<p class="message message-failure">Error: Invalid zone transition. Returned to safety.</p>`;
                      logEvent(`Error: Tried to enter invalid zone. Returned to ${zoneInfo.title || fallbackId}.`);
                 }
            }

            gameState.currentZoneId = newZoneId;
            setupLighting(zoneInfo.lighting || 'default'); // Setup general lighting FIRST

            // Add zone-specific lights (like point lights for caves) to the *current* zone's group
            currentLights.forEach(light => {
                 if (light && light.isPointLight && !light.parent) { // If it's a point light tracked but not in scene/group
                     zoneInfo.group.add(light); // Add it to the now visible group
                     console.log("Added point light to zone group:", newZoneId)
                 }
            });

            // Move player avatar to center of the new zone (optional visual)
            playerAvatar.position.set(0, PLAYER_HEIGHT / 2, 0);

            // Reset camera target and position relative to avatar/center
            camera.position.set(0, 6, 8); // Reset relative position
            controls.target.set(0, PLAYER_HEIGHT / 2, 0); // Target avatar center
            controls.update();

            // End placement mode on zone transition
            if (placementMode) {
                togglePlacementMode();
            }

            renderCurrentPageUI();
         }

        // --- Interaction Handling ---

        function handleKeyPress(event) {
            if (event.key.toUpperCase() === 'P') {
                togglePlacementMode();
            }
        }

        function handleRaycast(event) {
            // Calculate mouse position in normalized device coordinates (-1 to +1)
            const rect = renderer.domElement.getBoundingClientRect();
            mouse.x = ((event.clientX - rect.left) / rect.width) * 2 - 1;
            mouse.y = -((event.clientY - rect.top) / rect.height) * 2 + 1;

            // Update the picking ray with the camera and mouse position
            raycaster.setFromCamera(mouse, camera);

            // Calculate objects intersecting the picking ray
            // Important: Check against the *current visible zone group's children* and potentially other global interactables
            const currentZoneGroup = zoneGroups[gameState.currentZoneId]?.group;
            if (!currentZoneGroup) return;

            const intersects = raycaster.intersectObjects(currentZoneGroup.children, true); // Check children recursively

            if (intersects.length > 0) {
                const firstIntersect = intersects[0];
                const obj = firstIntersect.object;
                const point = firstIntersect.point; // World coordinates of the intersection

                if (placementMode) {
                    // If placing, click on ground places item
                    if (obj.userData.isGround || obj.parent?.userData?.isGround) { // Check obj or its immediate parent if ground is complex
                        placeItem(point);
                    } else {
                        console.log("Cannot place item here.");
                        currentMessage = `<p class="message message-failure">You can only place items on the ground.</p>`;
                        renderCurrentPageUI(); // Show message
                    }
                } else {
                    // Normal mode: Check for items or interactables
                    if (obj.userData?.isItem) {
                        pickupItem(obj, currentZoneGroup);
                    } else if (obj.userData?.isPortal) {
                        console.log(`Clicked Portal to: ${obj.userData.targetZoneId}`);
                        logEvent(`Stepped through the portal.`);
                        transitionToZone(obj.userData.targetZoneId);
                    } else if (obj.userData?.isGround) {
                         console.log("Clicked ground at:", point);
                         // Future: Could implement click-to-move here
                    } else {
                         console.log("Clicked non-interactive object:", obj.name, obj.userData);
                    }
                }
            }
        }

        function pickupItem(itemMesh, zoneGroup) {
            const itemName = itemMesh.userData.itemName;
            if (!itemName || !itemsData[itemName]) {
                console.error("Clicked item mesh has invalid data:", itemMesh);
                return;
            }

            // Add to inventory
            gameState.character.inventory.push(itemName);

            // Remove from scene / zone group
            zoneGroup.remove(itemMesh);

            // Remove from zoneInfo's item list (if tracked)
            const zoneInfo = zoneGroups[gameState.currentZoneId];
            if (zoneInfo && zoneInfo.items) {
                zoneInfo.items = zoneInfo.items.filter(item => item !== itemMesh);
            }

             // Set the item for potential placement later
             itemToPlace = itemName; // Track the last picked item's name

            console.log(`Picked up: ${itemName}`);
            currentMessage = `<p class="message message-success">You picked up: ${itemName}. Press 'P' to place it.</p>`;
            logEvent(`Picked up ${itemName}.`);

            renderCurrentPageUI(); // Update inventory display and message
        }

        function togglePlacementMode() {
            if (!itemToPlace) {
                 currentMessage = `<p class="message message-info">You have no item selected to place. Pick up an item first.</p>`;
                 renderCurrentPageUI();
                 return; // Don't enter placement mode without an item
            }

            placementMode = !placementMode;
            console.log("Placement Mode:", placementMode);

            if (placementMode) {
                 actionInfoElement.textContent = `Placement Mode ON (Placing: ${itemToPlace}). Click ground to place. Press P to cancel.`;
                 // Create preview mesh if it doesn't exist
                 if (!previewMesh) {
                     const itemData = itemsData[itemToPlace];
                     if (itemData && itemData.meshGeo) {
                         // Use a generic preview material but original geometry
                         previewMesh = new THREE.Mesh(itemData.meshGeo, MAT.preview);
                         previewMesh.renderOrder = 1; // Try to render on top
                         previewMesh.userData.isPreview = true;
                         scene.add(previewMesh); // Add preview directly to the main scene
                     } else {
                         console.error("Cannot create preview for item:", itemToPlace);
                         placementMode = false; // Exit placement mode if preview fails
                         actionInfoElement.textContent = `Zone: ${gameState.currentZoneId || 'None'}`;
                         return;
                     }
                 }
                 previewMesh.visible = true;
                 updatePreviewMesh(); // Position it initially
            } else {
                 actionInfoElement.textContent = `Zone: ${gameState.currentZoneId || 'None'}`;
                 if (previewMesh) {
                     previewMesh.visible = false; // Hide preview instead of removing
                 }
                 // Optionally clear itemToPlace here if cancelling should forget the item
                 // itemToPlace = null;
                 currentMessage = `<p class="message message-info">Placement mode cancelled.</p>`;
                 renderCurrentPageUI();
            }
        }

        function updatePreviewMesh() {
             if (!placementMode || !previewMesh) return;

             // Raycast from camera to mouse position, ONLY against ground objects
             raycaster.setFromCamera(mouse, camera);
             const currentZoneGroup = zoneGroups[gameState.currentZoneId]?.group;
             if (!currentZoneGroup) return;

             // Filter for ground objects in the current zone
             const groundObjects = [];
             currentZoneGroup.traverse(child => {
                if (child.userData?.isGround) {
                    groundObjects.push(child);
                }
             })

             const intersects = raycaster.intersectObjects(groundObjects, false); // Don't check recursively if ground is simple plane

             if (intersects.length > 0) {
                 const point = intersects[0].point;
                 previewMesh.position.copy(point);
                 // Add small offset based on item geometry bounds if available
                 const itemData = itemsData[itemToPlace];
                 if (itemData && itemData.meshGeo) {
                     itemData.meshGeo.computeBoundingBox();
                     const height = itemData.meshGeo.boundingBox.max.y - itemData.meshGeo.boundingBox.min.y;
                     previewMesh.position.y += height / 2 + 0.01; // Place bottom slightly above ground
                 } else {
                     previewMesh.position.y += 0.1; // Default offset
                 }
                 previewMesh.visible = true;
             } else {
                 previewMesh.visible = false; // Hide if not pointing at ground
             }
         }


        function placeItem(position) {
            if (!placementMode || !itemToPlace) return;

            const itemData = itemsData[itemToPlace];
            const currentZoneGroup = zoneGroups[gameState.currentZoneId]?.group;
            const zoneInfo = zoneGroups[gameState.currentZoneId];

            if (!itemData || !currentZoneGroup || !zoneInfo) {
                console.error("Cannot place item, missing data.");
                togglePlacementMode(); // Exit placement mode on error
                return;
            }

            // Create the actual item mesh
            const newItemMesh = createMesh(itemData.meshGeo, itemData.meshMat);
            newItemMesh.userData = { isItem: true, itemName: itemToPlace };

             // Adjust position based on geometry height, like the preview
             itemData.meshGeo.computeBoundingBox();
             const height = itemData.meshGeo.boundingBox.max.y - itemData.meshGeo.boundingBox.min.y;
             position.y += height / 2 + 0.01;
             newItemMesh.position.copy(position);


            // Add to the scene (current zone's group)
            currentZoneGroup.add(newItemMesh);

            // Add to the zone's item list for tracking
            if (!zoneInfo.items) zoneInfo.items = [];
            zoneInfo.items.push(newItemMesh);

            // Remove from inventory
            const invIndex = gameState.character.inventory.indexOf(itemToPlace);
            if (invIndex > -1) {
                gameState.character.inventory.splice(invIndex, 1);
            }

            console.log(`Placed ${itemToPlace} at ${position.x.toFixed(2)}, ${position.y.toFixed(2)}, ${position.z.toFixed(2)}`);
            currentMessage = `<p class="message message-success">You placed the ${itemToPlace}.</p>`;
            logEvent(`Placed ${itemToPlace} in ${zoneInfo.title || gameState.currentZoneId}.`);

            itemToPlace = null; // Clear the item being placed
            togglePlacementMode(); // Exit placement mode
            renderCurrentPageUI(); // Update UI
        }

        function performSkillCheck(skill, difficulty) {
            if (!gameState.character || !gameState.character.stats[skill]) {
                console.error("Invalid skill check:", skill);
                return { success: false, roll: 0, resultValue: 0, message: "Error: Invalid skill." };
            }

            const roll = Math.floor(Math.random() * 20) + 1;
            const skillValue = gameState.character.stats[skill] || 0; // Use 0 if stat doesn't exist
            const resultValue = roll + skillValue;
            const success = resultValue >= difficulty;

            console.log(`Skill Check: ${skill.toUpperCase()} (DC ${difficulty}) | Roll: ${roll} + Stat: ${skillValue} = ${resultValue} | ${success ? 'Success' : 'Failure'}`);

            return { success, roll, skillValue, resultValue };
        }


        // --- UI Rendering ---

        function renderCurrentPageUI() {
            const zoneInfo = zoneGroups[gameState.currentZoneId];
            const zoneId = gameState.currentZoneId;

            if (!zoneInfo) {
                 console.error(`No zone info loaded for ${zoneId}`);
                 storyTitleElement.textContent = "Error";
                 storyContentElement.innerHTML = currentMessage + "<p>Cannot render current zone. World broken.</p>";
                 choicesElement.innerHTML = `<button class="choice-button" onclick="startGame()">Restart Game</button>`; // Offer restart
                 updateStatsDisplay();
                 updateInventoryDisplay();
                 updateHistoryDisplay();
                 updateActionInfo();
                 return;
            }

             storyTitleElement.textContent = zoneInfo.title || "Unknown Zone";
             // Combine current message (from actions) with the zone's entry text
             storyContentElement.innerHTML = currentMessage + (zoneInfo.entryText ? `<p>${zoneInfo.entryText}</p>` : '');
             choicesElement.innerHTML = ''; // Clear previous choices

             // 1. Add Zone-Specific Options (including skill checks)
             if (zoneInfo.options && zoneInfo.options.length > 0) {
                 zoneInfo.options.forEach((option, index) => {
                     const button = document.createElement('button');
                     button.classList.add('choice-button');
                     button.textContent = option.text;

                     button.onclick = () => {
                         currentMessage = ""; // Clear previous action message before processing new one
                         if (option.action === 'skillCheck') {
                             const checkResult = performSkillCheck(option.skill, option.difficulty);
                             const messageClass = checkResult.success ? 'message-success' : 'message-failure';
                             const outcomeText = checkResult.success ? option.successText : option.failureText;
                             currentMessage = `<p class="message ${messageClass}">(${option.skill.toUpperCase()} DC ${option.difficulty}: ${checkResult.roll}+${checkResult.skillValue}=${checkResult.resultValue}) ${outcomeText}</p>`;
                             logEvent(`Skill Check ${option.skill.toUpperCase()}: ${checkResult.success ? 'Success' : 'Failure'} (${checkResult.resultValue} vs ${option.difficulty}).`);

                             if (checkResult.success) {
                                 // Grant reward if defined
                                 if (option.reward?.item && itemsData[option.reward.item]) {
                                    gameState.character.inventory.push(option.reward.item);
                                    currentMessage += `<p class="message message-success">You gained: ${option.reward.item}!</p>`;
                                    logEvent(`Gained ${option.reward.item}.`);
                                 }
                                 // Transition if defined
                                 if(option.targetZoneId) {
                                     transitionToZone(option.targetZoneId);
                                     return; // Stop further processing for this click if transitioning
                                 }
                                 // TODO: Could also modify zoneInfo.options or zoneInfo.entryText here for persistent changes
                             } else {
                                 // Handle failure consequences if any (e.g., take damage, trigger event)
                             }

                         } else if (option.action === 'message') {
                             currentMessage = `<p class="message message-info">${option.messageText}</p>`;
                             logEvent(`Observed: ${option.messageText}`);
                         } else if (option.action === 'goToZone') {
                             logEvent(`Chose to go to ${option.targetZoneId}.`);
                             transitionToZone(option.targetZoneId);
                             return; // Stop processing
                         }
                         // Add more action types here (combat, useItem, etc.)

                         renderCurrentPageUI(); // Re-render UI to show the result message
                     };
                     choicesElement.appendChild(button);
                 });
             }

            // 2. Add Movement Options (Buttons)
            const neighbors = getZoneNeighbors(zoneId);
            const directions = {'north': 'North', 'south': 'South', 'east': 'East', 'west': 'West'};
            for(const dir in neighbors) {
                 const neighborId = neighbors[dir];
                 const button = document.createElement('button');
                 button.classList.add('choice-button');
                 // Maybe get the title of the neighbor zone for a hint?
                 const neighborInfo = zoneGroups[neighborId] ?? zoneCreators[neighborId]?.(); // Preview or get existing
                 const neighborTitle = neighborInfo?.title ? ` (${neighborInfo.title})` : '';

                 button.textContent = `Go ${directions[dir]}${neighborTitle}`;
                 button.onclick = () => transitionToZone(neighborId);
                 choicesElement.appendChild(button);

                 // Cleanup preview if generated just for title
                 if(neighborInfo && !zoneGroups[neighborId]) {
                    // If we generated it just for the title and it wasn't already loaded, dispose of it? Or just let it be created on transition.
                 }
            }

             // 3. Update other UI elements
             updateStatsDisplay();
             updateInventoryDisplay();
             updateHistoryDisplay(); // Make sure history is up-to-date
             updateActionInfo();
        }

        // Make transitionToZone globally accessible for initial call and error recovery button if needed
        window.transitionToZone = transitionToZone;
        window.startGame = startGame; // Allow restarting from console or error button

        function updateStatsDisplay() {
            const { hp, maxHp, xp, str, dex, int } = gameState.character.stats;
            const hpColor = hp / maxHp < 0.3 ? '#f88' : (hp / maxHp < 0.6 ? '#fd5' : '#8f8');
            statsElement.innerHTML = `<strong>Stats:</strong> <span style="color:${hpColor}">HP: ${hp}/${maxHp}</span> <span>XP: ${xp}</span> <span>STR: ${str}</span> <span>DEX: ${dex}</span> <span>INT: ${int}</span>`;
        }

        function updateInventoryDisplay() {
             let invHtml = '<strong>Inventory:</strong> ';
             if (gameState.character.inventory.length === 0) {
                 invHtml += '<em>Empty</em>';
             } else {
                 // Group items
                 const itemCounts = gameState.character.inventory.reduce((acc, item) => {
                    acc[item] = (acc[item] || 0) + 1;
                    return acc;
                 }, {});

                 Object.entries(itemCounts).forEach(([itemName, count]) => {
                    const itemDef = itemsData[itemName] || { type: 'unknown', description: '???' };
                    const itemClass = `item-${itemDef.type || 'unknown'}`;
                    const countDisplay = count > 1 ? ` (x${count})` : '';
                    invHtml += `<span class="item-tag ${itemClass}" title="${itemDef.description}">${itemName}${countDisplay}</span>`;
                 });
             }
             inventoryElement.innerHTML = invHtml;
        }

         function updateHistoryDisplay() {
            if (!historyElement || !gameState.character || !gameState.character.history) return;
            let historyHtml = '<strong>History:</strong>';
            // Display latest events first
            for (let i = gameState.character.history.length - 1; i >= 0; i--) {
                historyHtml += `<div>${gameState.character.history[i]}</div>`;
            }
            historyElement.innerHTML = historyHtml;
            historyElement.scrollTop = 0; // Scroll to top to show latest
        }

        function updateActionInfo() {
            if (!actionInfoElement) return;
            if (placementMode) {
                 actionInfoElement.textContent = `Placement Mode ON (Placing: ${itemToPlace}). Click ground to place. Press P to cancel.`;
            } else {
                 actionInfoElement.textContent = `Zone: ${gameState.currentZoneId || 'None'}`;
            }
        }

        // --- Initialization ---
        document.addEventListener('DOMContentLoaded', () => {
             console.log("DOM Ready - Initializing Enhanced CYOA.");
             try {
                 initThreeJS();
                 if (!scene || !camera || !renderer) throw new Error("Three.js failed to initialize.");
                 startGame(); // Start game directly
                 console.log("Game world initialized and started.");
             } catch (error) {
                 console.error("Initialization failed:", error);
                 storyTitleElement.textContent = "Initialization Error";
                 storyContentElement.innerHTML = `<p style="color:red;">Failed to start game:</p><pre style="color:red; white-space: pre-wrap;">${error.stack || error}</pre>`;
                 if(sceneContainer) sceneContainer.innerHTML = '<p style="color:red; padding: 20px;">3D Scene Failed</p>';
                 document.getElementById('stats-inventory-container').style.display = 'none';
                 document.getElementById('choices-container').innerHTML = '<button class="choice-button" onclick="location.reload()">Reload Page</button>'; // Offer reload on critical fail
             }
         });

    </script>
</body>
</html>