multiplayer: added basic server and client functionality

main.tscn

@@ -1,7 +1,7 @@
 [gd_scene load_steps=16 format=3 uid="uid://eiaw4xbs3suk"]
 
+[ext_resource type="Script" uid="uid://cnbm3aqyg0p2o" path="res://server.gd" id="1_5vw27"]
 [ext_resource type="PackedScene" uid="uid://qb8cbljxgnub" path="res://world/killbrick.tscn" id="1_h2yge"]
-[ext_resource type="PackedScene" uid="uid://cfceg80unq0pe" path="res://player/player.tscn" id="1_ig7tw"]
 [ext_resource type="PackedScene" uid="uid://bcmrj6qkemrll" path="res://world/radiohead_cube.tscn" id="2_0xm2m"]
 [ext_resource type="Texture2D" uid="uid://wdjmyv260he1" path="res://world/textures/grass.jpg" id="2_272bh"]
 [ext_resource type="PackedScene" uid="uid://of6tq8gpjxtu" path="res://gears/gear_pickup.tscn" id="3_lquwl"]
@@ -40,8 +40,7 @@ glow_hdr_luminance_cap = 0.0
 [sub_resource type="Compositor" id="Compositor_5vw27"]
 
 [node name="Main" type="Node3D"]
-
+script = ExtResource("1_5vw27")
-[node name="Player" parent="." instance=ExtResource("1_ig7tw")]
 
 [node name="Baseplate" type="StaticBody3D" parent="."]
 
@@ -82,3 +81,45 @@ compositor = SubResource("Compositor_5vw27")
 transform = Transform3D(0.70710665, 0.5, -0.5, 0, 0.7071067, 0.7071067, 0.7071069, -0.49999988, 0.49999988, -500, 200, 500)
 light_color = Color(1, 0.87058824, 0.12941177, 1)
 shadow_enabled = true
+
+[node name="UI" type="CanvasLayer" parent="."]
+
+[node name="Menu" type="Panel" parent="UI"]
+anchors_preset = 15
+anchor_right = 1.0
+anchor_bottom = 1.0
+grow_horizontal = 2
+grow_vertical = 2
+
+[node name="MarginContainer" type="MarginContainer" parent="UI/Menu"]
+layout_mode = 0
+offset_right = 1149.0
+offset_bottom = 134.0
+theme_override_constants/margin_left = 15
+theme_override_constants/margin_top = 15
+
+[node name="VBoxContainer" type="VBoxContainer" parent="UI/Menu/MarginContainer"]
+layout_mode = 2
+
+[node name="Label" type="Label" parent="UI/Menu/MarginContainer/VBoxContainer"]
+layout_mode = 2
+text = "Menu
+"
+horizontal_alignment = 1
+
+[node name="ServerButton2" type="Button" parent="UI/Menu/MarginContainer/VBoxContainer"]
+layout_mode = 2
+text = "Host
+"
+
+[node name="ClientButton" type="Button" parent="UI/Menu/MarginContainer/VBoxContainer"]
+layout_mode = 2
+text = "Join
+"
+
+[node name="MultiplayerSpawner" type="MultiplayerSpawner" parent="."]
+_spawnable_scenes = PackedStringArray("uid://cfceg80unq0pe")
+spawn_path = NodePath("..")
+
+[connection signal="pressed" from="UI/Menu/MarginContainer/VBoxContainer/ServerButton2" to="." method="_on_server_button_pressed"]
+[connection signal="pressed" from="UI/Menu/MarginContainer/VBoxContainer/ClientButton" to="." method="_on_client_button_pressed"]

menu.tscn

@@ -0,0 +1,21 @@
+[gd_scene format=3 uid="uid://dbv3ty2ulxir4"]
+
+[node name="Menu" type="Control"]
+layout_mode = 3
+anchors_preset = 0
+
+[node name="client_button" type="Button" parent="."]
+layout_mode = 0
+offset_right = 200.0
+offset_bottom = 100.0
+text = "Client
+"
+
+[node name="server_button" type="Button" parent="."]
+layout_mode = 0
+offset_top = 165.0
+offset_right = 200.0
+offset_bottom = 265.0
+text = "Server
+
+"

player/player.gd

@@ -16,6 +16,11 @@ var target_velocity = Vector3.ZERO
 
 var _health = 100
 
+# Multiplayer
+
+func _enter_tree():
+	set_multiplayer_authority(str(name).to_int())
+	
 # Player UI
 
 func resize_ui():
@@ -220,8 +225,14 @@ func _ready():
 	get_viewport().size_changed.connect(resize_ui)
 	resize_ui()
 	respawn()
+	
+	if is_multiplayer_authority():
+		$CameraGimbal/InnerGimbal/Camera3D.current = true
+	else:
+		$CameraGimbal/InnerGimbal/Camera3D.current = false
 
 func _physics_process(delta):
+	if not is_multiplayer_authority(): return
 	if health() < 1 or position.y <= -1000:
 		die()
 

player/player.tscn

@@ -1,4 +1,4 @@
-[gd_scene load_steps=8 format=4 uid="uid://cfceg80unq0pe"]
+[gd_scene load_steps=9 format=4 uid="uid://cfceg80unq0pe"]
 
 [ext_resource type="Script" uid="uid://bfflnag3p4gen" path="res://player/player.gd" id="1_onrkg"]
 [ext_resource type="Script" uid="uid://oi6sint7jkc6" path="res://player/camera_gimbal.gd" id="2_onrkg"]
@@ -47,6 +47,32 @@ _surfaces = [{
 }]
 shadow_mesh = SubResource("ArrayMesh_e57bw")
 
+[sub_resource type="SceneReplicationConfig" id="SceneReplicationConfig_g1dw6"]
+properties/0/path = NodePath(".:position")
+properties/0/spawn = true
+properties/0/replication_mode = 1
+properties/1/path = NodePath(".:rotation")
+properties/1/spawn = true
+properties/1/replication_mode = 1
+properties/2/path = NodePath("CameraGimbal:position")
+properties/2/spawn = true
+properties/2/replication_mode = 1
+properties/3/path = NodePath("CameraGimbal:rotation")
+properties/3/spawn = true
+properties/3/replication_mode = 1
+properties/4/path = NodePath("CameraGimbal/InnerGimbal:position")
+properties/4/spawn = true
+properties/4/replication_mode = 1
+properties/5/path = NodePath("CameraGimbal/InnerGimbal:rotation")
+properties/5/spawn = true
+properties/5/replication_mode = 1
+properties/6/path = NodePath("CameraGimbal/InnerGimbal/Camera3D:position")
+properties/6/spawn = true
+properties/6/replication_mode = 1
+properties/7/path = NodePath("CameraGimbal/InnerGimbal/Camera3D:rotation")
+properties/7/spawn = true
+properties/7/replication_mode = 1
+
 [node name="Player" type="CharacterBody3D"]
 collision_layer = 2
 collision_mask = 3
@@ -100,6 +126,9 @@ text = "Pictures of you"
 horizontal_alignment = 2
 vertical_alignment = 2
 
+[node name="MultiplayerSynchronizer" type="MultiplayerSynchronizer" parent="."]
+replication_config = SubResource("SceneReplicationConfig_g1dw6")
+
 [connection signal="child_entered_tree" from="Backpack" to="." method="_on_backpack_child_entered_tree"]
 [connection signal="child_exiting_tree" from="Backpack" to="." method="_on_backpack_child_exiting_tree"]
 [connection signal="timeout" from="RespawnTimer" to="." method="respawn"]

server.gd

@@ -0,0 +1,27 @@
+extends Node3D
+
+@onready var menu = $UI/Menu
+
+const PORT = 9999
+const PLAYER = preload("res://player/player.tscn")
+var peer = ENetMultiplayerPeer.new()
+
+
+
+func _on_server_button_pressed() -> void:
+	menu.hide()
+	peer.create_server(PORT)
+	multiplayer.multiplayer_peer = peer
+	multiplayer.peer_connected.connect(add_player)
+	
+	add_player(multiplayer.get_unique_id())
+	
+func _on_client_button_pressed() -> void:
+	menu.hide()
+	peer.create_client("localhost",PORT)
+	multiplayer.multiplayer_peer = peer
+	
+func add_player(peer_id):
+	var player = PLAYER.instantiate()
+	player.name = str(peer_id)
+	add_child(player)