기본 이동, 네트워크, 카메라 설정 + 기본 애셋 추가

Assets/Scripts/PlayerController.cs

@@ -0,0 +1,34 @@
+using UnityEngine;
+
+[RequireComponent(typeof(Rigidbody))]
+public class PlayerController : MonoBehaviour
+{
+    [Header("Movement Settings")]
+    [SerializeField] private float moveSpeed = 5f;
+
+    private Rigidbody rb;
+    private Vector3 moveDirection;
+
+    void Start()
+    {
+        rb = GetComponent<Rigidbody>();
+        rb.constraints = RigidbodyConstraints.FreezeRotation;
+    }
+
+    void Update()
+    {
+        float horizontal = Input.GetAxisRaw("Horizontal");
+        float vertical = Input.GetAxisRaw("Vertical");
+
+        moveDirection = new Vector3(horizontal, 0f, vertical).normalized;
+    }
+
+    void FixedUpdate()
+    {
+        rb.linearVelocity = new Vector3(
+            moveDirection.x * moveSpeed,
+            rb.linearVelocity.y,
+            moveDirection.z * moveSpeed
+        );
+    }
+}