feat(game): Host-only mode (#283)

Co-authored-by: Tamás Gálffy <[email protected]>

Author: TheYellowArchitect

examples/forest-brawl/forest-brawl.tscn

@@ -29,6 +29,7 @@ font_size = 64
 [node name="Network" type="Node" parent="."]
 
 [node name="Brawler Spawner" type="Node" parent="Network" node_paths=PackedStringArray("spawn_root", "camera", "joining_screen", "name_input")]
+unique_name_in_owner = true
 script = ExtResource("5_qv1fx")
 player_scene = ExtResource("7_tcy3g")
 spawn_root = NodePath("../../Players")
@@ -196,6 +197,11 @@ text = "16384"
 layout_mode = 2
 size_flags_horizontal = 4
 
+[node name="Host Only Button" type="Button" parent="UI/Network Popup/LAN/Actions Row"]
+layout_mode = 2
+size_flags_horizontal = 4
+text = "Host Only"
+
 [node name="Host Button" type="Button" parent="UI/Network Popup/LAN/Actions Row"]
 layout_mode = 2
 size_flags_horizontal = 4
@@ -265,6 +271,10 @@ placeholder_text = "Host OID"
 [node name="Connect Actions Row" type="HBoxContainer" parent="UI/Network Popup/Noray"]
 layout_mode = 2
 
+[node name="Host Only Button" type="Button" parent="UI/Network Popup/Noray/Connect Actions Row"]
+layout_mode = 2
+text = "Host Only"
+
 [node name="Host Button" type="Button" parent="UI/Network Popup/Noray/Connect Actions Row"]
 layout_mode = 2
 text = "Host"
@@ -277,26 +287,20 @@ text = "Join"
 layout_mode = 2
 text = "Force Relay"
 
-[node name="Noray Bootstrapper" type="Node" parent="UI/Network Popup" node_paths=PackedStringArray("connect_ui", "noray_address_input", "noray_connect_button", "noray_disconnect_button", "oid_input", "host_oid_input", "host_button", "join_button", "force_relay_check")]
+[node name="LAN Bootstrapper" type="Node" parent="UI/Network Popup" node_paths=PackedStringArray("connect_ui", "address_input", "port_input")]
+script = ExtResource("12_gjc7i")
+connect_ui = NodePath("..")
+address_input = NodePath("../LAN/Address Row/Address LineEdit")
+port_input = NodePath("../LAN/Address Row/Port LineEdit")
+
+[node name="Noray Bootstrapper" type="Node" parent="UI/Network Popup" node_paths=PackedStringArray("connect_ui", "noray_address_input", "oid_input", "host_oid_input", "force_relay_check")]
 script = ExtResource("11_vpdh0")
 connect_ui = NodePath("..")
 noray_address_input = NodePath("../Noray/Noray Address Row/Address LineEdit")
-noray_connect_button = NodePath("../Noray/Noray Actions Row/Connect Button")
-noray_disconnect_button = NodePath("../Noray/Noray Actions Row/Disconnect Button")
 oid_input = NodePath("../Noray/OID Row/OID Value")
 host_oid_input = NodePath("../Noray/Connect Host Row/Host LineEdit")
-host_button = NodePath("../Noray/Connect Actions Row/Host Button")
-join_button = NodePath("../Noray/Connect Actions Row/Join Button")
 force_relay_check = NodePath("../Noray/Connect Actions Row/Force Relay Checkbox")
 
-[node name="LAN Bootstrapper" type="Node" parent="UI/Network Popup" node_paths=PackedStringArray("connect_ui", "address_input", "port_input", "host_button", "join_button")]
-script = ExtResource("12_gjc7i")
-connect_ui = NodePath("..")
-address_input = NodePath("../LAN/Address Row/Address LineEdit")
-port_input = NodePath("../LAN/Address Row/Port LineEdit")
-host_button = NodePath("../LAN/Actions Row/Host Button")
-join_button = NodePath("../LAN/Actions Row/Join Button")
-
 [node name="Player stats" type="Control" parent="UI" node_paths=PackedStringArray("score_label", "score_manager")]
 visible = false
 layout_mode = 1
@@ -362,3 +366,12 @@ vertical_alignment = 1
 [node name="Score Screen" parent="UI" instance=ExtResource("14_85lvt")]
 visible = false
 layout_mode = 1
+
+[connection signal="pressed" from="UI/Network Popup/LAN/Actions Row/Host Only Button" to="UI/Network Popup/LAN Bootstrapper" method="host_only"]
+[connection signal="pressed" from="UI/Network Popup/LAN/Actions Row/Host Button" to="UI/Network Popup/LAN Bootstrapper" method="host"]
+[connection signal="pressed" from="UI/Network Popup/LAN/Actions Row/Join Button" to="UI/Network Popup/LAN Bootstrapper" method="join"]
+[connection signal="pressed" from="UI/Network Popup/Noray/Noray Actions Row/Connect Button" to="UI/Network Popup/Noray Bootstrapper" method="connect_to_noray"]
+[connection signal="pressed" from="UI/Network Popup/Noray/Noray Actions Row/Disconnect Button" to="UI/Network Popup/Noray Bootstrapper" method="disconnect_from_noray"]
+[connection signal="pressed" from="UI/Network Popup/Noray/Connect Actions Row/Host Only Button" to="UI/Network Popup/Noray Bootstrapper" method="host_only"]
+[connection signal="pressed" from="UI/Network Popup/Noray/Connect Actions Row/Host Button" to="UI/Network Popup/Noray Bootstrapper" method="host"]
+[connection signal="pressed" from="UI/Network Popup/Noray/Connect Actions Row/Join Button" to="UI/Network Popup/Noray Bootstrapper" method="join"]

examples/forest-brawl/scripts/brawler-spawner.gd

@@ -1,11 +1,13 @@
 extends Node
+class_name BrawlerSpawner
 
 @export var player_scene: PackedScene
 @export var spawn_root: Node
 @export var camera: FollowingCamera
 @export var joining_screen: Control
 @export var name_input: LineEdit
 
+var spawn_host_avatar: bool = true
 var avatars: Dictionary = {}
 
 func _ready():
@@ -28,8 +30,9 @@ func _handle_connected(id: int):
 		joining_screen.visible = false
 
 func _handle_host():
-	# Spawn own avatar on host machine
-	_spawn(1)
+	if spawn_host_avatar:
+		# Spawn own avatar on host machine
+		_spawn(1)
 
 func _handle_new_peer(id: int):
 	# Spawn an avatar for new player

examples/shared/scripts/lan-bootstrapper.gd

@@ -4,14 +4,14 @@ extends Node
 @export var connect_ui: Control
 @export var address_input: LineEdit
 @export var port_input: LineEdit
-@export var host_button: Button
-@export var join_button: Button
 
-func _ready():
-	join_button.button_up.connect(_join)
-	host_button.button_up.connect(_host)
+@onready var brawler_spawner := %"Brawler Spawner" as BrawlerSpawner
 
-func _host():
+func host_only():
+	brawler_spawner.spawn_host_avatar = false
+	host()
+
+func host():
 	var host = _parse_input()
 	if host.size() == 0:
 		return ERR_CANT_RESOLVE
@@ -48,7 +48,7 @@ func _host():
 	# are assumed to be absent, hence starting NetworkTime manually
 	NetworkTime.start()
 
-func _join():
+func join():
 	var host = _parse_input()
 	if host.size() == 0:
 		return ERR_CANT_RESOLVE

examples/shared/scripts/noray-bootstrapper.gd

@@ -5,27 +5,20 @@ enum Role { NONE, HOST, CLIENT }
 @export_category("UI")
 @export var connect_ui: Control
 @export var noray_address_input: LineEdit
-@export var noray_connect_button: Button
-@export var noray_disconnect_button: Button
 @export var oid_input: LineEdit
 @export var host_oid_input: LineEdit
-@export var host_button: Button
-@export var join_button: Button
 @export var force_relay_check: CheckBox
 
+@onready var brawler_spawner := %"Brawler Spawner" as BrawlerSpawner
+
 var role = Role.NONE
 
 func _ready():
-	noray_connect_button.button_up.connect(_connect_to_noray)
-	noray_disconnect_button.button_up.connect(_disconnect_from_noray)
-	host_button.button_up.connect(_host)
-	join_button.button_up.connect(_join)
-	
 	Noray.on_oid.connect(func(oid): oid_input.text = oid)
 	Noray.on_connect_nat.connect(_handle_connect_nat)
 	Noray.on_connect_relay.connect(_handle_connect_relay)
 
-func _connect_to_noray():
+func connect_to_noray():
 	# Connect to noray
 	var err = OK
 	var address = noray_address_input.text
@@ -55,11 +48,15 @@ func _connect_to_noray():
 	print("Registered local port: %d" % Noray.local_port)
 	return OK
 
-func _disconnect_from_noray():
+func disconnect_from_noray():
 	Noray.disconnect_from_host()
 	oid_input.clear()
 
-func _host():
+func host_only():
+	brawler_spawner.spawn_host_avatar = false
+	host()
+
+func host():
 	if Noray.local_port <= 0:
 		return ERR_UNCONFIGURED
 
@@ -94,7 +91,7 @@ func _host():
 	# are assumed to be absent, hence starting NetworkTime manually
 	NetworkTime.start()
 
-func _join():
+func join():
 	role = Role.CLIENT
 
 	if force_relay_check.button_pressed: