Update game.js

game.js

@@ -12,7 +12,7 @@ const MAX_HEALTH = 1000;
 const ENEMY_MOVE_SPEED = 0.1;
 const ENEMY_COUNT_MAX = 5;
 const PARTICLE_COUNT = 15;
-const BUILDING_COUNT = 30;
+const BUILDING_COUNT = 30;  // 건물 수 추가
 const ENEMY_CONFIG = {
     ATTACK_RANGE: 100,
     ATTACK_INTERVAL: 2000,
@@ -75,56 +75,62 @@ class TankPlayer {
     }
 
     shoot(scene) {
-        const currentTime = Date.now();
-        if (currentTime - this.lastShootTime < this.shootInterval || this.ammo <= 0) return null;
-
-        const bulletGeometry = new THREE.SphereGeometry(0.2);
-        const bulletMaterial = new THREE.MeshBasicMaterial({ color: 0x00ff00 });
-        const bullet = new THREE.Mesh(bulletGeometry, bulletMaterial);
-
-        const bulletOffset = new THREE.Vector3(0, 0.5, 2);
-        bulletOffset.applyQuaternion(this.turretGroup.quaternion);
-        bulletOffset.applyQuaternion(this.body.quaternion);
-        bullet.position.copy(this.body.position).add(bulletOffset);
-
-        const direction = new THREE.Vector3(0, 0, 1);
-        direction.applyQuaternion(this.turretGroup.quaternion);
-        direction.applyQuaternion(this.body.quaternion);
-        bullet.velocity = direction.multiplyScalar(2);
-
-        scene.add(bullet);
-        this.bullets.push(bullet);
-        this.ammo--;
-        this.lastShootTime = currentTime;
-
-        document.getElementById('ammo').textContent = `Ammo: ${this.ammo}/10`;
-        
-        return bullet;
-    }
+    const currentTime = Date.now();
+    if (currentTime - this.lastShootTime < this.shootInterval || this.ammo <= 0) return null;
+
+    // 총알 생성
+    const bulletGeometry = new THREE.SphereGeometry(0.2);
+    const bulletMaterial = new THREE.MeshBasicMaterial({ color: 0x00ff00 });
+    const bullet = new THREE.Mesh(bulletGeometry, bulletMaterial);
+
+    // 총알 시작 위치 (포탑 끝)
+    const bulletOffset = new THREE.Vector3(0, 0.5, 2);
+    // 포탑의 회전을 적용
+    bulletOffset.applyQuaternion(this.turretGroup.quaternion);
+    bulletOffset.applyQuaternion(this.body.quaternion);
+    bullet.position.copy(this.body.position).add(bulletOffset);
+
+    // 총알 속도 (포탑 방향)
+    const direction = new THREE.Vector3(0, 0, 1);
+    direction.applyQuaternion(this.turretGroup.quaternion);
+    direction.applyQuaternion(this.body.quaternion);
+    bullet.velocity = direction.multiplyScalar(2);
+
+    scene.add(bullet);
+    this.bullets.push(bullet);
+    this.ammo--;
+    this.lastShootTime = currentTime;
+
+    document.getElementById('ammo').textContent = `Ammo: ${this.ammo}/10`;
+    
+    return bullet;
+}
 
     update(mouseX, mouseY) {
-        if (!this.body || !this.turretGroup) return;
-        
-        for (let i = this.bullets.length - 1; i >= 0; i--) {
-            const bullet = this.bullets[i];
-            bullet.position.add(bullet.velocity);
-
-            if (Math.abs(bullet.position.x) > MAP_SIZE/2 || 
-                Math.abs(bullet.position.z) > MAP_SIZE/2) {
-                scene.remove(bullet);
-                this.bullets.splice(i, 1);
-            }
-        }
-    }
+   if (!this.body || !this.turretGroup) return;
+   
+   // 총알 업데이트만 수행하고 포탑 회전은 Game 클래스의 handleMovement에서 처리
+   for (let i = this.bullets.length - 1; i >= 0; i--) {
+       const bullet = this.bullets[i];
+       bullet.position.add(bullet.velocity);
+
+       // 총알이 맵 밖으로 나가면 제거
+       if (Math.abs(bullet.position.x) > MAP_SIZE/2 || 
+           Math.abs(bullet.position.z) > MAP_SIZE/2) {
+           scene.remove(bullet);
+           this.bullets.splice(i, 1);
+       }
+   }
+}
 
     move(direction) {
-        if (!this.body) return;
-        
-        const moveVector = new THREE.Vector3();
-        moveVector.x = direction.x * this.moveSpeed;
-        moveVector.z = direction.z * this.moveSpeed;
-        
-        this.body.position.add(moveVector);
+    if (!this.body) return;
+    
+    const moveVector = new THREE.Vector3();
+    moveVector.x = direction.x * this.moveSpeed;
+    moveVector.z = direction.z * this.moveSpeed;
+    
+    this.body.position.add(moveVector);
     }
 
     rotate(angle) {
@@ -141,22 +147,23 @@ class TankPlayer {
         return this.health <= 0;
     }
 }
-
+// Enemy 클래스 수정
 class Enemy {
     constructor(scene, position, type = 'tank') {
         this.scene = scene;
         this.position = position;
         this.mesh = null;
-        this.type = type;
-        this.health = type === 'tank' ? 100 : 200;
+        this.type = type; // 'tank' 또는 'heavy'
+        this.health = type === 'tank' ? 100 : 200; // heavy는 체력이 더 높음
         this.lastAttackTime = 0;
         this.bullets = [];
         this.isLoaded = false;
-        this.moveSpeed = type === 'tank' ? ENEMY_MOVE_SPEED : ENEMY_MOVE_SPEED * 0.7;
+        this.moveSpeed = type === 'tank' ? ENEMY_MOVE_SPEED : ENEMY_MOVE_SPEED * 0.7; // heavy는 더 느림
     }
 
     async initialize(loader) {
         try {
+            // 타입에 따라 다른 모델 로드
             const modelPath = this.type === 'tank' ? '/models/enemy1.glb' : '/models/enemy4.glb';
             const result = await loader.loadAsync(modelPath);
             this.mesh = result.scene;
@@ -181,17 +188,22 @@ class Enemy {
     update(playerPosition) {
         if (!this.mesh || !this.isLoaded) return;
 
+        // 플레이어 방향으로 회전
         const direction = new THREE.Vector3()
             .subVectors(playerPosition, this.mesh.position)
             .normalize();
         
         this.mesh.lookAt(playerPosition);
+
+        // 플레이어 방향으로 이동 (타입에 따라 다른 속도)
         this.mesh.position.add(direction.multiplyScalar(this.moveSpeed));
 
+        // 총알 업데이트
         for (let i = this.bullets.length - 1; i >= 0; i--) {
             const bullet = this.bullets[i];
             bullet.position.add(bullet.velocity);
 
+            // 총알이 맵 밖으로 나가면 제거
             if (Math.abs(bullet.position.x) > MAP_SIZE || 
                 Math.abs(bullet.position.z) > MAP_SIZE) {
                 this.scene.remove(bullet);
@@ -204,7 +216,7 @@ class Enemy {
         const currentTime = Date.now();
         const attackInterval = this.type === 'tank' ? 
             ENEMY_CONFIG.ATTACK_INTERVAL : 
-            ENEMY_CONFIG.ATTACK_INTERVAL * 1.5;
+            ENEMY_CONFIG.ATTACK_INTERVAL * 1.5; // heavy는 발사 간격이 더 김
 
         if (currentTime - this.lastAttackTime < attackInterval) return;
 
@@ -246,6 +258,7 @@ class Enemy {
     }
 }
 
+// Particle 클래스는 그대로 유지
 class Particle {
     constructor(scene, position) {
         const geometry = new THREE.SphereGeometry(0.1);
@@ -277,9 +290,10 @@ class Particle {
         scene.remove(this.mesh);
     }
 }
-
+// Game 클래스
 class Game {
     constructor() {
+        // 기본 Three.js 설정
         this.scene = new THREE.Scene();
         this.camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
         this.renderer = new THREE.WebGLRenderer({ antialias: true });
@@ -287,6 +301,7 @@ class Game {
         this.renderer.shadowMap.enabled = true;
         document.getElementById('gameContainer').appendChild(this.renderer.domElement);
 
+        // 게임 요소 초기화
         this.tank = new TankPlayer();
         this.enemies = [];
         this.particles = [];
@@ -300,6 +315,7 @@ class Game {
         this.previousTankPosition = new THREE.Vector3();
         this.lastTime = performance.now();
 
+        // 마우스/키보드 상태
         this.mouse = { x: 0, y: 0 };
         this.keys = {
             forward: false,
@@ -308,90 +324,464 @@ class Game {
             right: false
         };
 
+        // 이벤트 리스너 설정
         this.setupEventListeners();
         this.initialize();
-        this.disposedObjects = new Set();
     }
 
-    // 여기에 Game 클래스의 나머지 메서드들이 들어갑니다...
-    // (initialize, setupEventListeners, handleMovement, animate, checkCollisions, updateUI, endGame 등)
+    async initialize() {
+   try {
+       // 조명 설정
+       const ambientLight = new THREE.AmbientLight(0xffffff, 0.5);
+       this.scene.add(ambientLight);
+
+       const directionalLight = new THREE.DirectionalLight(0xffffff, 0.8);
+       directionalLight.position.set(50, 50, 50);
+       directionalLight.castShadow = true;
+       directionalLight.shadow.mapSize.width = 2048;
+       directionalLight.shadow.mapSize.height = 2048;
+       this.scene.add(directionalLight);
+
+       // 지형 생성
+       const ground = new THREE.Mesh(
+           new THREE.PlaneGeometry(MAP_SIZE, MAP_SIZE),
+           new THREE.MeshStandardMaterial({ 
+               color: 0x333333,
+               roughness: 0.9,
+               metalness: 0.1
+           })
+       );
+       ground.rotation.x = -Math.PI / 2;
+       ground.receiveShadow = true;
+       this.scene.add(ground);
+
+       // 건물 생성
+       await this.createBuildings();
+
+       // 탱크 초기화
+       await this.tank.initialize(this.scene, this.loader);
+       if (!this.tank.isLoaded) {
+           throw new Error('Tank loading failed');
+       }
+
+       // 카메라 설정 수정
+             // 탱크의 현재 위치 가져오기
+      const tankPosition = this.tank.getPosition();
+      // 카메라를 탱크 위치 기준으로 설정
+      this.camera.position.set(
+          tankPosition.x,
+          tankPosition.y + 15,  // 탱크보다 15 유닛 위에
+          tankPosition.z - 30   // 탱크보다 30 유닛 뒤에
+      );
+      // 카메라가 탱크를 바라보도록 설정
+      this.camera.lookAt(new THREE.Vector3(
+          tankPosition.x,
+          tankPosition.y + 2,  // 탱크의 상단 부분을 바라보도록
+          tankPosition.z
+      ));
+
+       // 로딩 완료
+       this.isLoading = false;
+       document.getElementById('loading').style.display = 'none';
+
+       // 게임 시작
+       this.animate();
+       this.spawnEnemies();
+       this.startGameTimer();
+
+   } catch (error) {
+       console.error('Game initialization error:', error);
+       this.handleLoadingError();
+   }
+}
 
-    createExplosion(position) {
-        for (let i = 0; i < PARTICLE_COUNT; i++) {
-            this.particles.push(new Particle(this.scene, position));
+    setupEventListeners() {
+    // 키보드 이벤트는 그대로 유지
+    document.addEventListener('keydown', (event) => {
+        if (this.isLoading) return;
+        switch(event.code) {
+            case 'KeyW': this.keys.forward = true; break;
+            case 'KeyS': this.keys.backward = true; break;
+            case 'KeyA': this.keys.left = true; break;
+            case 'KeyD': this.keys.right = true; break;
         }
-    }
+    });
+
+    document.addEventListener('keyup', (event) => {
+        if (this.isLoading) return;
+        switch(event.code) {
+            case 'KeyW': this.keys.forward = false; break;
+            case 'KeyS': this.keys.backward = false; break;
+            case 'KeyA': this.keys.left = false; break;
+            case 'KeyD': this.keys.right = false; break;
+        }
+    });
 
-    updateParticles() {
-        for (let i = this.particles.length - 1; i >= 0; i--) {
-            const particle = this.particles[i];
-            if (!particle.update()) {
-                particle.destroy(this.scene);
-                this.particles.splice(i, 1);
+    // 마우스 움직임 이벤트를 수정
+    document.addEventListener('mousemove', (event) => {
+        if (this.isLoading || !document.pointerLockElement) return;
+        
+        // movementX/Y를 사용하여 마우스 회전 계산
+        this.mouse.x += event.movementX * 0.002;
+        this.mouse.y += event.movementY * 0.002;
+    });
+
+    // 클릭 이벤트 수정 - 포인터 락과 발사를 함께 처리
+    document.addEventListener('click', () => {
+        if (!document.pointerLockElement) {
+            document.body.requestPointerLock();
+        } else {
+            const bullet = this.tank.shoot(this.scene);
+            if (bullet) {
+                // 총알 발사 효과음이나 시각효과 추가 가능
             }
         }
+    });
+
+    // 포인터 락 상태 변경 이벤트 추가
+    document.addEventListener('pointerlockchange', () => {
+        if (!document.pointerLockElement) {
+            // 포인터 락이 해제되었을 때의 처리
+            this.mouse.x = 0;
+            this.mouse.y = 0;
+        }
+    });
+
+    // 창 크기 변경 이벤트는 그대로 유지
+    window.addEventListener('resize', () => {
+        this.camera.aspect = window.innerWidth / window.innerHeight;
+        this.camera.updateProjectionMatrix();
+        this.renderer.setSize(window.innerWidth, window.innerHeight);
+    });
+}
+   handleMovement() {
+    if (!this.tank.isLoaded) return;
+    
+    const direction = new THREE.Vector3();
+    
+    if (this.keys.forward) direction.z += 1;
+    if (this.keys.backward) direction.z -= 1;
+    if (this.keys.left) direction.x -= 1;
+    if (this.keys.right) direction.x += 1;
+    
+    if (direction.length() > 0) {
+        direction.normalize();
+        
+        // A,D 키로 탱크 회전
+        if (this.keys.left) this.tank.rotate(-1);
+        if (this.keys.right) this.tank.rotate(1);
+        
+        // 현재 탱크의 방향으로 이동
+        direction.applyEuler(this.tank.body.rotation);
+        this.tank.move(direction);
     }
 
-    async createBuildings() {
+    // 마우스 위치를 탱크 기준으로 변환
+    const mouseVector = new THREE.Vector2(this.mouse.x, -this.mouse.y);
+    const rotationAngle = Math.atan2(mouseVector.x, mouseVector.y);
+    
+    // 포탑 회전
+    if (this.tank.turretGroup) {
+        this.tank.turretGroup.rotation.y = rotationAngle;
+    }
+
+    // 여기부터 카메라 로직을 수정합니다
+    const tankPos = this.tank.getPosition();
+    const cameraDistance = 30; // 카메라와 탱크 사이의 거리
+    const cameraHeight = 15;   // 카메라의 높이
+    const lookAtHeight = 5;    // 카메라가 바라보는 높이
+    
+    // 탱크의 회전에 따라 카메라 위치 계산
+    const tankRotation = this.tank.body.rotation.y;
+    
+    // 카메라 위치 계산 수정
+    this.camera.position.set(
+        tankPos.x - Math.sin(tankRotation) * cameraDistance,
+        tankPos.y + cameraHeight,
+        tankPos.z - Math.cos(tankRotation) * cameraDistance
+    );
+
+    // 카메라가 바라보는 지점을 탱크 위치보다 약간 앞쪽으로 설정
+    const lookAtPoint = new THREE.Vector3(
+        tankPos.x + Math.sin(tankRotation) * 10, // 탱크 앞쪽 10 유닛
+        tankPos.y + lookAtHeight,                 // 탱크보다 약간 위
+        tankPos.z + Math.cos(tankRotation) * 10   // 탱크 앞쪽 10 유닛
+    );
+    
+    this.camera.lookAt(lookAtPoint);
+}
+createBuildings() {
+        const buildingTypes = [
+            { width: 10, height: 30, depth: 10, color: 0x808080 },
+            { width: 15, height: 40, depth: 15, color: 0x606060 },
+            { width: 20, height: 50, depth: 20, color: 0x404040 }
+        ];
+
         for (let i = 0; i < BUILDING_COUNT; i++) {
-            const x = (Math.random() - 0.5) * MAP_SIZE;
-            const z = (Math.random() - 0.5) * MAP_SIZE;
-            
-            const geometry = new THREE.BoxGeometry(10, 20, 10);
-            const material = new THREE.MeshStandardMaterial({ color: 0x808080 });
-            const building = new THREE.Mesh(geometry, material);
+            const type = buildingTypes[Math.floor(Math.random() * buildingTypes.length)];
+            const building = this.createBuilding(type);
             
-            building.position.set(x, 10, z);
-            building.castShadow = true;
-            building.receiveShadow = true;
-            
-            this.scene.add(building);
-            this.buildings.push(building);
+            let position;
+            let attempts = 0;
+            do {
+                position = new THREE.Vector3(
+                    (Math.random() - 0.5) * (MAP_SIZE - type.width),
+                    type.height / 2,
+                    (Math.random() - 0.5) * (MAP_SIZE - type.depth)
+                );
+                attempts++;
+            } while (this.checkBuildingCollision(position, type) && attempts < 50);
+
+            if (attempts < 50) {
+                building.position.copy(position);
+                this.buildings.push(building);
+                this.scene.add(building);
+            }
+        }
+    }
+
+    createBuilding(type) {
+        const geometry = new THREE.BoxGeometry(type.width, type.height, type.depth);
+        const material = new THREE.MeshPhongMaterial({ 
+            color: type.color,
+            emissive: 0x222222,
+            specular: 0x111111,
+            shininess: 30
+        });
+        const building = new THREE.Mesh(geometry, material);
+        building.castShadow = true;
+        building.receiveShadow = true;
+        return building;
+    }
+
+    checkBuildingCollision(position, type) {
+        const margin = 5;
+        const bbox = new THREE.Box3(
+            new THREE.Vector3(
+                position.x - (type.width / 2 + margin),
+                0,
+                position.z - (type.depth / 2 + margin)
+            ),
+            new THREE.Vector3(
+                position.x + (type.width / 2 + margin),
+                type.height,
+                position.z + (type.depth / 2 + margin)
+            )
+        );
+
+        return this.buildings.some(building => {
+            const buildingBox = new THREE.Box3().setFromObject(building);
+            return bbox.intersectsBox(buildingBox);
+        });
+    }
+
+    handleLoadingError() {
+        this.isLoading = false;
+        const loadingElement = document.getElementById('loading');
+        if (loadingElement) {
+            loadingElement.innerHTML = `
+                <div class="loading-text" style="color: red;">
+                    Loading failed. Please refresh the page.
+                </div>
+            `;
         }
     }
 
     spawnEnemies() {
-        const spawnInterval = setInterval(() => {
-            if (this.isGameOver || this.enemies.length >= ENEMY_COUNT_MAX) return;
-
-            const angle = Math.random() * Math.PI * 2;
-            const distance = 100 + Math.random() * 50;
-            const x = Math.cos(angle) * distance;
-            const z = Math.sin(angle) * distance;
-
-            const enemyType = Math.random() > 0.7 ? 'heavy' : 'tank';
-            const enemy = new Enemy(this.scene, new THREE.Vector3(x, ENEMY_GROUND_HEIGHT, z), enemyType);
-            enemy.initialize(this.loader);
-            this.enemies.push(enemy);
-        }, 3000);
+        const spawnEnemy = () => {
+            if (this.enemies.length < ENEMY_COUNT_MAX && !this.isGameOver) {
+                const position = this.getValidEnemySpawnPosition();
+                if (position) {
+                    const type = Math.random() < 0.7 ? 'tank' : 'heavy';
+                    const enemy = new Enemy(this.scene, position, type);
+                    enemy.initialize(this.loader);
+                    this.enemies.push(enemy);
+                }
+            }
+            setTimeout(spawnEnemy, 3000);
+        };
+        
+        spawnEnemy();
     }
 
-    startGameTimer() {
-        const timerInterval = setInterval(() => {
-            if (this.isGameOver) {
-                clearInterval(timerInterval);
-                return;
+    getValidEnemySpawnPosition() {
+        const margin = 20;
+        let position;
+        let attempts = 0;
+        const maxAttempts = 50;
+
+        do {
+            position = new THREE.Vector3(
+                (Math.random() - 0.5) * (MAP_SIZE - margin * 2),
+                ENEMY_GROUND_HEIGHT,
+                (Math.random() - 0.5) * (MAP_SIZE - margin * 2)
+            );
+
+            const distanceToPlayer = position.distanceTo(this.tank.getPosition());
+            if (distanceToPlayer < 100) continue;
+
+            let collisionFound = false;
+            for (const building of this.buildings) {
+                const buildingBox = new THREE.Box3().setFromObject(building);
+                if (buildingBox.containsPoint(position)) {
+                    collisionFound = true;
+                    break;
+                }
             }
 
+            if (!collisionFound) return position;
+
+            attempts++;
+        } while (attempts < maxAttempts);
+
+        return null;
+    }
+
+    startGameTimer() {
+        const timer = setInterval(() => {
+            if (this.isLoading) return;
+            
             this.gameTime--;
-            if (this.gameTime <= 0) {
+            if (this.gameTime <= 0 || this.isGameOver) {
+                clearInterval(timer);
                 this.endGame();
-                clearInterval(timerInterval);
             }
         }, 1000);
     }
 
-    handleLoadingError() {
-        this.isLoading = false;
-        document.getElementById('loading').style.display = 'none';
-        document.getElementById('error').style.display = 'block';
+    updateParticles() {
+        for (let i = this.particles.length - 1; i >= 0; i--) {
+            const particle = this.particles[i];
+            if (!particle.update()) {
+                particle.destroy(this.scene);
+                this.particles.splice(i, 1);
+            }
+        }
+    }
+
+    createExplosion(position) {
+        for (let i = 0; i < PARTICLE_COUNT; i++) {
+            this.particles.push(new Particle(this.scene, position));
+        }
+    }
+
+    checkCollisions() {
+        if (this.isLoading || !this.tank.isLoaded) return;
+
+        const tankPosition = this.tank.getPosition();
+
+        this.enemies.forEach(enemy => {
+            if (!enemy.mesh || !enemy.isLoaded) return;
+
+            enemy.bullets.forEach(bullet => {
+                const distance = bullet.position.distanceTo(tankPosition);
+                if (distance < 1) {
+                    if (this.tank.takeDamage(10)) {
+                        this.endGame();
+                    }
+                    this.scene.remove(bullet);
+                    enemy.bullets = enemy.bullets.filter(b => b !== bullet);
+                    
+                    this.createExplosion(bullet.position);
+                    document.getElementById('health').style.width = 
+                        `${(this.tank.health / MAX_HEALTH) * 100}%`;
+                }
+            });
+        });
+
+        const tankBoundingBox = new THREE.Box3().setFromObject(this.tank.body);
+        for (const building of this.buildings) {
+            const buildingBox = new THREE.Box3().setFromObject(building);
+            if (tankBoundingBox.intersectsBox(buildingBox)) {
+                this.tank.body.position.copy(this.previousTankPosition);
+                break;
+            }
+        }
+        
+        this.previousTankPosition = this.tank.body.position.clone();
+    }
+
+    endGame() {
+        this.isGameOver = true;
+        const gameOverDiv = document.createElement('div');
+        gameOverDiv.style.position = 'absolute';
+        gameOverDiv.style.top = '50%';
+        gameOverDiv.style.left = '50%';
+        gameOverDiv.style.transform = 'translate(-50%, -50%)';
+        gameOverDiv.style.color = 'white';
+        gameOverDiv.style.fontSize = '48px';
+        gameOverDiv.style.backgroundColor = 'rgba(0, 0, 0, 0.7)';
+        gameOverDiv.style.padding = '20px';
+        gameOverDiv.style.borderRadius = '10px';
+        gameOverDiv.innerHTML = `
+            Game Over<br>
+            Score: ${this.score}<br>
+            Time Survived: ${GAME_DURATION - this.gameTime}s<br>
+            <button onclick="location.reload()" 
+                    style="font-size: 24px; padding: 10px; margin-top: 20px; 
+                           cursor: pointer; background: #4CAF50; border: none; 
+                           color: white; border-radius: 5px;">
+                Play Again
+            </button>
+        `;
+        document.body.appendChild(gameOverDiv);
+    }
+
+    animate() {
+        if (this.isGameOver) return;
+
+        requestAnimationFrame(() => this.animate());
+
+        const currentTime = performance.now();
+        const deltaTime = (currentTime - this.lastTime) / 1000;
+        this.lastTime = currentTime;
+
+        if (this.isLoading) {
+            this.renderer.render(this.scene, this.camera);
+            return;
+        }
+
+        this.handleMovement();
+        this.tank.update(this.mouse.x, this.mouse.y);
+        
+        const tankPosition = this.tank.getPosition();
+        this.enemies.forEach(enemy => {
+            enemy.update(tankPosition);
+            
+            if (enemy.isLoaded && enemy.mesh.position.distanceTo(tankPosition) < ENEMY_CONFIG.ATTACK_RANGE) {
+                enemy.shoot(tankPosition);
+            }
+        });
+
+        this.updateParticles();
+        this.checkCollisions();
+        this.updateUI();
+        this.renderer.render(this.scene, this.camera);
+    }
+
+    updateUI() {
+        const healthBar = document.getElementById('health');
+        if (healthBar) {
+            healthBar.style.width = `${(this.tank.health / MAX_HEALTH) * 100}%`;
+        }
+
+        const timeElement = document.getElementById('time');
+        if (timeElement) {
+            timeElement.textContent = `Time: ${this.gameTime}s`;
+        }
+
+        const scoreElement = document.getElementById('score');
+        if (scoreElement) {
+            scoreElement.textContent = `Score: ${this.score}`;
+        }
     }
 }
 
-// 게임 시작
+// HTML의 startGame 함수와 연결
 window.startGame = function() {
     document.getElementById('startScreen').style.display = 'none';
     document.body.requestPointerLock();
 };
 
+// 게임 인스턴스 생성
 const game = new Game();