fix: create local player on client so WASD movement works

client_main.gd: when server spawns our player, create a player node with authority

- Camera follows local player from 3/4 overhead view

- player.gd WASD input sends position to server via RPC

- Server validates and broadcasts to all peers

scripts/network/client_main.gd

@@ -22,6 +22,10 @@ extends Node3D
 var remote_players: Dictionary = {}
 var connected: bool = false
 
+# Our local player node (created when server spawns us)
+var _local_player: Node = null
+var _camera: Camera3D = null
+
 # ---------------------------------------------------------------------------
 # Lifecycle
 # ---------------------------------------------------------------------------
@@ -45,8 +49,17 @@ func _connect_to_server() -> void:
 		_connect_to_server()
 		return
 	
-	# Setup camera and lights
-	_setup_scene()
+	# Setup camera (fixed overhead until a player is spawned)
+	_camera = _make_camera()
+	add_child(_camera)
+	
+	# Ambient light so we can see the box meshes
+	var light := DirectionalLight3D.new()
+	light.light_energy = 1.0
+	light.shadow_enabled = true
+	light.position = Vector3(10, 20, 10)
+	add_child(light)
+	light.look_at(Vector3.ZERO)
 	
 	connected = true
 	
@@ -57,31 +70,41 @@ func _connect_to_server() -> void:
 	
 	print("[ClientMain] Connected to server. Peer ID: %d" % multiplayer.get_unique_id())
 
-func _setup_scene() -> void:
-	# Simple 3/4 top-down camera for Phase 0 testing
-	var camera := Camera3D.new()
-	camera.current = true
-	camera.position = Vector3(0, 16, 12)
-	camera.rotation_degrees.x = -55
-	add_child(camera)
-	
-	# Ambient light so we can see the box meshes
-	var light := DirectionalLight3D.new()
-	light.light_energy = 1.0
-	light.shadow_enabled = true
-	light.position = Vector3(10, 20, 10)
-	add_child(light)
-	light.look_at(Vector3.ZERO)
+func _make_camera() -> Camera3D:
+	var cam := Camera3D.new()
+	cam.current = true
+	cam.position = Vector3(0, 16, 12)
+	cam.rotation_degrees.x = -55
+	return cam
+
+func _process(_delta: float) -> void:
+	# Make camera follow local player if we have one
+	if _local_player and _camera:
+		_camera.position = _local_player.position + Vector3(0, 16, 12)
+		# Always look down at the player
+		var look_target := _local_player.position
+		look_target.y = _local_player.position.y + 2.0
+		_camera.look_at(look_target)
 
 # ---------------------------------------------------------------------------
 # Player replication handlers (called when server broadcasts via RPC)
 # ---------------------------------------------------------------------------
 func _on_remote_player_spawned(peer_id: int, pos: Vector3) -> void:
 	if peer_id == multiplayer.get_unique_id():
-		# This is OUR player — the server has authority over it,
-		# but we don't need to create a duplicate. Our local player
-		# node is managed by the server's authority system.
-		# The player.gd script will handle input on this peer.
+		# THIS IS OUR PLAYER — create a local player node and attach camera.
+		# The player.gd script handles WASD input and sends position to server.
+		if _local_player:
+			push_warning("[ClientMain] Local player already exists, respawning")
+			_local_player.queue_free()
+		
+		_local_player = player_scene.instantiate()
+		_local_player.name = "LocalPlayer"
+		_local_player.position = pos
+		# Set authority so player.gd detects is_local = true and enables input
+		_local_player.set_multiplayer_authority(peer_id)
+		add_child(_local_player, true)
+		
+		print("[ClientMain] Spawned LOCAL player at (%.1f, %.1f)" % [pos.x, pos.z])
 		return
 	
 	if peer_id in remote_players:
@@ -107,6 +130,11 @@ func _on_remote_player_spawned(peer_id: int, pos: Vector3) -> void:
 
 func _on_remote_player_despawned(peer_id: int) -> void:
 	if peer_id == multiplayer.get_unique_id():
+		# Our player was despawned
+		if _local_player:
+			_local_player.queue_free()
+			_local_player = null
+			print("[ClientMain] Local player despawned")
 		return
 	
 	if peer_id in remote_players:
@@ -118,7 +146,9 @@ func _exit_tree() -> void:
 	if connected:
 		NetworkManager.stop()
 	
-	# Clean up any remaining remote players
+	# Clean up any remaining players
+	if _local_player:
+		_local_player.queue_free()
 	for p in remote_players.values():
 		p.queue_free()
 	remote_players.clear()