Update game.js

game.js

@@ -542,6 +542,12 @@ class Fighter {
         if (this.position.y <= GAME_CONSTANTS.MIN_ALTITUDE) {
             this.position.y = GAME_CONSTANTS.MIN_ALTITUDE;
             this.health = 0;
+            
+            // 지면 충돌 시 폭발 효과 추가
+            if (window.gameInstance) {
+                window.gameInstance.createExplosionEffect(this.position);
+            }
+            
             return;
         }
         
@@ -2208,6 +2214,166 @@ class Game {
         } catch (e) {}
     }
 
+      createExplosionEffect(position) {
+    // 메인 폭발 플래시
+    const explosionGeometry = new THREE.SphereGeometry(50, 16, 16);
+    const explosionMaterial = new THREE.MeshBasicMaterial({
+        color: 0xffaa00,
+        emissive: 0xffaa00,
+        emissiveIntensity: 3.0,
+        transparent: true,
+        opacity: 1.0
+    });
+    
+    const explosion = new THREE.Mesh(explosionGeometry, explosionMaterial);
+    explosion.position.copy(position);
+    this.scene.add(explosion);
+    
+    // 폭발 파편들
+    const debrisCount = 30;
+    const debris = [];
+    
+    for (let i = 0; i < debrisCount; i++) {
+        const debrisGeometry = new THREE.BoxGeometry(
+            2 + Math.random() * 4,
+            2 + Math.random() * 4,
+            2 + Math.random() * 4
+        );
+        const debrisMaterial = new THREE.MeshBasicMaterial({
+            color: Math.random() > 0.5 ? 0xff6600 : 0x333333,
+            transparent: true,
+            opacity: 1.0
+        });
+        
+        const debrisPiece = new THREE.Mesh(debrisGeometry, debrisMaterial);
+        debrisPiece.position.copy(position);
+        
+        // 랜덤 속도와 회전
+        debrisPiece.velocity = new THREE.Vector3(
+            (Math.random() - 0.5) * 200,
+            (Math.random() - 0.5) * 200,
+            (Math.random() - 0.5) * 200
+        );
+        debrisPiece.rotationSpeed = new THREE.Vector3(
+            Math.random() * 10,
+            Math.random() * 10,
+            Math.random() * 10
+        );
+        debrisPiece.life = 2.0;
+        
+        this.scene.add(debrisPiece);
+        debris.push(debrisPiece);
+    }
+    
+    // 연기 효과
+    const smokeCount = 10;
+    const smoke = [];
+    
+    for (let i = 0; i < smokeCount; i++) {
+        const smokeGeometry = new THREE.SphereGeometry(10 + Math.random() * 20, 8, 8);
+        const smokeMaterial = new THREE.MeshBasicMaterial({
+            color: 0x222222,
+            transparent: true,
+            opacity: 0.8
+        });
+        
+        const smokePuff = new THREE.Mesh(smokeGeometry, smokeMaterial);
+        smokePuff.position.copy(position);
+        smokePuff.position.add(new THREE.Vector3(
+            (Math.random() - 0.5) * 20,
+            (Math.random() - 0.5) * 20,
+            (Math.random() - 0.5) * 20
+        ));
+        
+        smokePuff.velocity = new THREE.Vector3(
+            (Math.random() - 0.5) * 50,
+            Math.random() * 50 + 20,
+            (Math.random() - 0.5) * 50
+        );
+        smokePuff.life = 3.0;
+        
+        this.scene.add(smokePuff);
+        smoke.push(smokePuff);
+    }
+    
+    // 폭발음 재생 - 150% 음량
+    try {
+        const explosionSound = new Audio('sounds/bang.ogg');
+        explosionSound.volume = 1.0; 
+        explosionSound.play().catch(e => console.log('Explosion sound failed:', e));
+    } catch (e) {
+        console.log('Explosion sound error:', e);
+    }
+    
+    // 애니메이션
+    const animateExplosion = () => {
+        let allDead = true;
+        
+        // 메인 폭발 애니메이션
+        if (explosion.material.opacity > 0) {
+            explosion.material.opacity -= 0.02;
+            explosion.scale.multiplyScalar(1.08);
+            allDead = false;
+        } else if (explosion.parent) {
+            this.scene.remove(explosion);
+        }
+        
+        // 파편 애니메이션
+        debris.forEach(piece => {
+            if (piece.life > 0) {
+                allDead = false;
+                piece.life -= 0.02;
+                
+                // 위치 업데이트
+                piece.position.add(piece.velocity.clone().multiplyScalar(0.02));
+                
+                // 중력
+                piece.velocity.y -= 3;
+                
+                // 회전
+                piece.rotation.x += piece.rotationSpeed.x * 0.02;
+                piece.rotation.y += piece.rotationSpeed.y * 0.02;
+                piece.rotation.z += piece.rotationSpeed.z * 0.02;
+                
+                // 페이드 아웃
+                piece.material.opacity = piece.life / 2;
+            } else if (piece.parent) {
+                this.scene.remove(piece);
+            }
+        });
+        
+        // 연기 애니메이션
+        smoke.forEach(puff => {
+            if (puff.life > 0) {
+                allDead = false;
+                puff.life -= 0.02;
+                
+                // 위치 업데이트
+                puff.position.add(puff.velocity.clone().multiplyScalar(0.02));
+                
+                // 상승 감속
+                puff.velocity.y *= 0.98;
+                puff.velocity.x *= 0.98;
+                puff.velocity.z *= 0.98;
+                
+                // 확산
+                puff.scale.multiplyScalar(1.02);
+                
+                // 페이드 아웃
+                puff.material.opacity = (puff.life / 3) * 0.8;
+            } else if (puff.parent) {
+                this.scene.remove(puff);
+            }
+        });
+        
+        if (!allDead) {
+            requestAnimationFrame(animateExplosion);
+        }
+    };
+    
+    animateExplosion();
+}
+
     showHitMarker(position) {
         // 히트 마커 div 생성
         const hitMarker = document.createElement('div');