Refactored the WHOLE project

From a simple test file, we're now on road to create a real project
Took 3 hours, but code looks nice

src/utils/playerMovement.js

@@ -0,0 +1,69 @@
+import * as THREE from 'three';
+import * as MathUtils from 'three/src/math/MathUtils.js';
+
+const PLAYER_SPEED = 0.015;
+const ROTATION_SPEED = 0.05; // Vitesse de rotation
+const playerDirection = new THREE.Vector3(0, 0, 0);
+const playerRotation = new THREE.Quaternion();
+
+//Managing keys
+export function handleKeyDown(event) {
+    switch (event.code) {
+      case 'ArrowUp':
+      case 'KeyW':
+        playerDirection.y = 1; // Up
+        break;
+      case 'ArrowDown':
+      case 'KeyS':
+        playerDirection.y = -1; // Back
+        break;
+      case 'ArrowLeft':
+      case 'KeyA':
+        playerDirection.x = -1; // Left
+        break;
+      case 'ArrowRight':
+      case 'KeyD':
+        playerDirection.x = 1; // Right
+        break;
+    }
+  }
+  
+  export function handleKeyUp(event) {
+    switch (event.code) {
+      case 'ArrowUp':
+      case 'KeyW':
+      case 'ArrowDown':
+      case 'KeyS':
+        playerDirection.y = 0; // Arrêter le mouvement vertical
+        break;
+      case 'ArrowLeft':
+      case 'KeyA':
+      case 'ArrowRight':
+      case 'KeyD':
+        playerDirection.x = 0; // Arrêter le mouvement horizontal
+        break;
+    }
+  }
+
+  export function updatePlayerPositionAnimation(player, camera) {
+    /* Function called in the main loop
+        Used to calculate the position and orientation of the player
+        Also used to start and stop walking animation */
+    const delta = playerDirection.clone().multiplyScalar(PLAYER_SPEED);
+    player.scene.position.add(delta);
+    camera.position.add(delta);//The camera must follow the player
+
+    if (playerDirection.length() > 0) {//If a movement key is pressed ( or something in playerDirection )
+        if(!player.animationActions.Walk.isRunning()) player.animationActions.Walk.play();//Playing walk animation
+
+        const angle = Math.atan2(playerDirection.x, -playerDirection.y);//Get the angle between center (0;0) and the coordinates, which are directly provided by the pressed keys
+        const targetRotation = new THREE.Quaternion();
+        
+        targetRotation.setFromAxisAngle(new THREE.Vector3(0, 1, 0), angle);
+        playerRotation.slerp(targetRotation, ROTATION_SPEED);//Slowly moving from playerRotation to targetRotation
+        player.scene.setRotationFromQuaternion(playerRotation);
+        player.scene.rotateOnWorldAxis(new THREE.Vector3(1, 0, 0), MathUtils.degToRad(90));//Used to force the player to be standing up instead of sleeping
+    }else{
+        if(player.animationActions.Walk.isRunning()) player.animationActions.Walk.stop();//Not walking, we can stop this animation
+    }
+  }