Added basic chat

client/Global.gd

@@ -6,3 +6,4 @@ var players: PlayerManager
 var instance_id := OS.get_process_id() % 4
 var username := "user%d" % instance_id
 var account_id: String
+var interacting_with_ui: bool

client/network/Chat.gd

@@ -0,0 +1,21 @@
+extends PacketHandler
+
+signal message_received(message: String)
+
+func send_message(message: String):
+	var buffer := StreamPeerBuffer.new()
+	buffer.put_8(Packet.CHAT)
+	buffer.put_data(message.to_utf8_buffer())
+	%Client.send(buffer.data_array)
+
+func handle_packet(data: PackedByteArray, _peer: PacketPeer):
+	var buffer := StreamPeerBuffer.new()
+	buffer.data_array = data
+
+	var player_id := buffer.get_string()
+	var player := Global.players.get_player(player_id)
+	var message := buffer.get_utf8_string()
+
+	print("[%s] %s: %s" % [Global.username, player.name, message])
+	message_received.emit("[color=#808080]%s:[/color] %s" % [player.name, message])
+	

client/network/PlayerAdd.gd

@@ -25,7 +25,11 @@ func handle_packet(data: PackedByteArray, _peer: PacketPeer):
 	player.position = server_position
 	player.set_character_name(player_name)
 
-	if player_id == Global.account_id:
+func spawn_player(id: String) -> Player:
+	var player = player_scene.instantiate()
+	player.id = id
+
+	if id == Global.account_id:
 		Global.player = player
 		player.controller = PlayerController.new()
 		main_player_spawned.emit(player)
@@ -34,9 +38,5 @@ func handle_packet(data: PackedByteArray, _peer: PacketPeer):
 	
 	player.controller.character = player
 	player.add_child(player.controller)
-
-func spawn_player(id: String) -> Player:
-	var player = player_scene.instantiate()
-	player.id = id
 	%Players.add(player)
 	return player

client/network/PlayerMove.gd

@@ -16,6 +16,10 @@ func handle_packet(data: PackedByteArray, _peer: PacketPeer):
 	var z := buffer.get_float()
 
 	var player := Global.players.get_player(player_id)
+
+	if !player:
+		return
+
 	var controller := player.controller as ProxyController
 	controller.server_position.x = x
 	controller.server_position.z = z

client/network/shared/PacketHandler.gd

@@ -11,6 +11,7 @@ enum Packet {
 	PLAYER_MOVE = 12,
 	PLAYER_JUMP = 13,
 	PLAYER_ATTACK = 14,
+	CHAT = 20,
 }
 
 @export var packet_type: Packet

client/player/controller/PlayerController.gd

@@ -6,7 +6,10 @@ extends Node
 
 var move: Vector2
 
-func _input(_event):
+func _unhandled_input(_event):
+	if Global.interacting_with_ui:
+		return
+	
 	move = Input.get_vector("move_left", "move_right", "move_forward", "move_backward")
 	character.direction = (Global.camera.transform.basis * Vector3(move.x, 0, move.y))
 	character.direction.y = 0

client/project.godot

@@ -98,6 +98,11 @@ menu={
 , Object(InputEventJoypadButton,"resource_local_to_scene":false,"resource_name":"","device":-1,"button_index":6,"pressure":0.0,"pressed":false,"script":null)
 ]
 }
+open_chat={
+"deadzone": 0.5,
+"events": [Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":0,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":0,"physical_keycode":4194309,"key_label":0,"unicode":0,"echo":false,"script":null)
+]
+}
 
 [physics]
 

client/ui/ChatBox.gd

@@ -0,0 +1,7 @@
+extends RichTextLabel
+
+func _ready():
+	owner.on_message_received.connect(on_message_received)
+
+func on_message_received(bbcode: String):
+	append_text(bbcode + "\n")

client/ui/ChatInput.gd

@@ -0,0 +1,21 @@
+extends LineEdit
+
+signal chat_message_submitted(message: String)
+
+func _unhandled_input(event):
+	if Global.interacting_with_ui:
+		return
+	
+	if event.is_action_pressed("open_chat"):
+		call_deferred("grab_focus")
+
+func _on_focus_entered():
+	Global.interacting_with_ui = true
+
+func _on_focus_exited():
+	Global.interacting_with_ui = false
+
+func _on_text_submitted(message: String):
+	(owner as UIManager).chat_message_submitted.emit(message)
+	text = ""
+	release_focus()

client/ui/UI.gd

@@ -1,10 +1,15 @@
+class_name UIManager
 extends Control
 
+signal chat_message_submitted(message: String)
+
 var on_ping_changed: Signal
 var on_download_changed: Signal
 var on_upload_changed: Signal
+var on_message_received: Signal
 
 func _enter_tree():
 	on_ping_changed = %Ping.changed
 	on_download_changed = %Client.download_changed
 	on_upload_changed = %Client.upload_changed
+	on_message_received = %Chat.message_received

client/ui/UI.tscn

@@ -1,4 +1,4 @@
-[gd_scene load_steps=9 format=3 uid="uid://dagn5bf7ou3sd"]
+[gd_scene load_steps=11 format=3 uid="uid://dagn5bf7ou3sd"]
 
 [ext_resource type="PackedScene" uid="uid://cch67vqpsmtej" path="res://ui/debug/DebugLabel.tscn" id="1_7s8uu"]
 [ext_resource type="Script" path="res://ui/UI.gd" id="1_l5b6o"]
@@ -6,6 +6,8 @@
 [ext_resource type="Script" path="res://ui/debug/PingLabel.gd" id="3_xjdws"]
 [ext_resource type="Script" path="res://ui/debug/PositionLabel.gd" id="4_beqf6"]
 [ext_resource type="Script" path="res://ui/debug/VelocityLabel.gd" id="5_8lm6a"]
+[ext_resource type="Script" path="res://ui/ChatBox.gd" id="5_vdqtm"]
+[ext_resource type="Script" path="res://ui/ChatInput.gd" id="6_70anv"]
 [ext_resource type="Script" path="res://ui/debug/UploadLabel.gd" id="7_cfnpx"]
 [ext_resource type="Script" path="res://ui/debug/DownloadLabel.gd" id="8_ogt38"]
 
@@ -35,21 +37,24 @@ script = ExtResource("3_xjdws")
 anchors_preset = 2
 anchor_top = 1.0
 anchor_bottom = 1.0
-offset_top = -10.0
-offset_right = 10.0
+offset_top = -134.0
+offset_right = 263.0
 grow_vertical = 0
 
 [node name="VBoxContainer" type="VBoxContainer" parent="CanvasLayer/BottomLeft"]
 layout_mode = 2
 alignment = 2
 
-[node name="Send" parent="CanvasLayer/BottomLeft/VBoxContainer" instance=ExtResource("1_7s8uu")]
+[node name="ChatBox" type="RichTextLabel" parent="CanvasLayer/BottomLeft/VBoxContainer"]
 layout_mode = 2
-script = ExtResource("7_cfnpx")
+size_flags_vertical = 3
+bbcode_enabled = true
+scroll_following = true
+script = ExtResource("5_vdqtm")
 
-[node name="Receive" parent="CanvasLayer/BottomLeft/VBoxContainer" instance=ExtResource("1_7s8uu")]
+[node name="ChatInput" type="LineEdit" parent="CanvasLayer/BottomLeft/VBoxContainer"]
 layout_mode = 2
-script = ExtResource("8_ogt38")
+script = ExtResource("6_70anv")
 
 [node name="BottomRight" type="MarginContainer" parent="CanvasLayer"]
 anchors_preset = 3
@@ -57,8 +62,8 @@ anchor_left = 1.0
 anchor_top = 1.0
 anchor_right = 1.0
 anchor_bottom = 1.0
-offset_left = -79.0
-offset_top = -102.0
+offset_left = -76.0
+offset_top = -54.0
 grow_horizontal = 0
 grow_vertical = 0
 
@@ -66,12 +71,37 @@ grow_vertical = 0
 layout_mode = 2
 alignment = 2
 
-[node name="Position" parent="CanvasLayer/BottomRight/VBoxContainer" instance=ExtResource("1_7s8uu")]
+[node name="Send" parent="CanvasLayer/BottomRight/VBoxContainer" instance=ExtResource("1_7s8uu")]
+layout_mode = 2
+alignment = 2
+script = ExtResource("7_cfnpx")
+
+[node name="Receive" parent="CanvasLayer/BottomRight/VBoxContainer" instance=ExtResource("1_7s8uu")]
+layout_mode = 2
+alignment = 2
+script = ExtResource("8_ogt38")
+
+[node name="TopRight" type="MarginContainer" parent="CanvasLayer"]
+anchors_preset = 1
+anchor_left = 1.0
+anchor_right = 1.0
+offset_left = -79.0
+offset_bottom = 102.0
+grow_horizontal = 0
+
+[node name="VBoxContainer" type="VBoxContainer" parent="CanvasLayer/TopRight"]
+layout_mode = 2
+
+[node name="Position" parent="CanvasLayer/TopRight/VBoxContainer" instance=ExtResource("1_7s8uu")]
 layout_mode = 2
 alignment = 2
 script = ExtResource("4_beqf6")
 
-[node name="Velocity" parent="CanvasLayer/BottomRight/VBoxContainer" instance=ExtResource("1_7s8uu")]
+[node name="Velocity" parent="CanvasLayer/TopRight/VBoxContainer" instance=ExtResource("1_7s8uu")]
 layout_mode = 2
 alignment = 2
 script = ExtResource("5_8lm6a")
+
+[connection signal="focus_entered" from="CanvasLayer/BottomLeft/VBoxContainer/ChatInput" to="CanvasLayer/BottomLeft/VBoxContainer/ChatInput" method="_on_focus_entered"]
+[connection signal="focus_exited" from="CanvasLayer/BottomLeft/VBoxContainer/ChatInput" to="CanvasLayer/BottomLeft/VBoxContainer/ChatInput" method="_on_focus_exited"]
+[connection signal="text_submitted" from="CanvasLayer/BottomLeft/VBoxContainer/ChatInput" to="CanvasLayer/BottomLeft/VBoxContainer/ChatInput" method="_on_text_submitted"]

client/world/Main.tscn

@@ -1,4 +1,4 @@
-[gd_scene load_steps=21 format=3 uid="uid://b40y7iuskv1ar"]
+[gd_scene load_steps=24 format=3 uid="uid://b40y7iuskv1ar"]
 
 [ext_resource type="Script" path="res://Game.gd" id="1_uxop2"]
 [ext_resource type="Script" path="res://network/Client.gd" id="2_00qe8"]
@@ -12,7 +12,7 @@
 [ext_resource type="Script" path="res://network/PlayerJump.gd" id="8_p6kmr"]
 [ext_resource type="Environment" uid="uid://dixa0yso2s1u3" path="res://world/Environment.tres" id="9_4u3r5"]
 [ext_resource type="CameraAttributesPractical" uid="uid://b835orxyqq6w5" path="res://camera/CameraAttributes.tres" id="10_4uslp"]
-[ext_resource type="PackedScene" uid="uid://tgmbtt7u172g" path="res://world/Arena.blend" id="11_ffpbh"]
+[ext_resource type="Script" path="res://network/Chat.gd" id="10_27gvi"]
 [ext_resource type="PackedScene" uid="uid://hnn0n1xc2qt7" path="res://world/Tree.blend" id="12_x8kho"]
 [ext_resource type="PackedScene" uid="uid://cb2t7bvvf3gwh" path="res://enemy/slime/Slime.tscn" id="13_hdbbd"]
 [ext_resource type="PackedScene" uid="uid://dagn5bf7ou3sd" path="res://ui/UI.tscn" id="14_ofk4r"]
@@ -20,6 +20,16 @@
 [ext_resource type="Script" path="res://world/PlayerManager.gd" id="16_sjldq"]
 [ext_resource type="Material" uid="uid://ddy5gkw0k16dq" path="res://shader/OutlineMaterial.tres" id="16_srvfy"]
 
+[sub_resource type="StandardMaterial3D" id="StandardMaterial3D_lp0k7"]
+albedo_color = Color(0, 0, 0, 1)
+
+[sub_resource type="BoxMesh" id="BoxMesh_j5fsa"]
+material = SubResource("StandardMaterial3D_lp0k7")
+size = Vector3(100, 1, 100)
+
+[sub_resource type="BoxShape3D" id="BoxShape3D_yg2lt"]
+size = Vector3(100, 1, 100)
+
 [sub_resource type="QuadMesh" id="QuadMesh_7yiqd"]
 material = ExtResource("16_srvfy")
 flip_faces = true
@@ -68,6 +78,11 @@ packet_type = 12
 script = ExtResource("8_p6kmr")
 packet_type = 13
 
+[node name="Chat" type="Node" parent="Client"]
+unique_name_in_owner = true
+script = ExtResource("10_27gvi")
+packet_type = 20
+
 [node name="Statistics" type="Timer" parent="Client"]
 autostart = true
 
@@ -83,8 +98,6 @@ script = ExtResource("8_leyo3")
 environment = ExtResource("9_4u3r5")
 camera_attributes = ExtResource("10_4uslp")
 
-[node name="Arena" parent="World" instance=ExtResource("11_ffpbh")]
-
 [node name="Trees" type="Node3D" parent="World"]
 
 [node name="Tree" parent="World/Trees" instance=ExtResource("12_x8kho")]
@@ -104,6 +117,15 @@ transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 7.00829, 1.28057, -1.95247)
 [node name="Slime3" parent="World/Enemies" instance=ExtResource("13_hdbbd")]
 transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 8.53558, 1.28057, -0.306177)
 
+[node name="Floor" type="MeshInstance3D" parent="World"]
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, -0.5, 0)
+mesh = SubResource("BoxMesh_j5fsa")
+
+[node name="StaticBody3D" type="StaticBody3D" parent="World/Floor"]
+
+[node name="CollisionShape3D" type="CollisionShape3D" parent="World/Floor/StaticBody3D"]
+shape = SubResource("BoxShape3D_yg2lt")
+
 [node name="Players" type="Node3D" parent="."]
 unique_name_in_owner = true
 script = ExtResource("16_sjldq")
@@ -146,3 +168,4 @@ mesh = SubResource("QuadMesh_7yiqd")
 [connection signal="timeout" from="Client/Ping/Timer" to="Client/Ping" method="send_ping"]
 [connection signal="timeout" from="Client/Login/Timer" to="Client/Login" method="send_login"]
 [connection signal="timeout" from="Client/Statistics" to="Client" method="update_statistics"]
+[connection signal="chat_message_submitted" from="UI" to="Client/Chat" method="send_message"]

client/world/PlayerManager.gd

@@ -14,5 +14,8 @@ func get_player(id: String) -> Player:
 	return players[id] as Player
 
 func remove(id: String):
+	if !players.has(id):
+		return
+	
 	players[id].queue_free()
 	players.erase(id)

server/game/Chat.go

@@ -0,0 +1,19 @@
+package game
+
+import (
+	"fmt"
+	"net"
+	"server/game/packet"
+)
+
+// Chat is used for chat messages.
+func (game *Game) Chat(data []byte, address *net.UDPAddr, server *Server) error {
+	player := game.players.Get(address)
+	fmt.Printf("[%s] %s\n", player.Name, string(data))
+
+	newData := []byte{}
+	newData = AppendString(newData, player.ID)
+	newData = AppendStringBytes(newData, data)
+	game.Broadcast(packet.Chat, newData)
+	return nil
+}

server/game/Game.go

@@ -30,7 +30,15 @@ func (game *Game) Run() {
 	<-close
 }
 
-// BroadcastOthers sends the packet to all other players.
+// Broadcast sends the packet to all players.
+func (game *Game) Broadcast(code byte, data []byte) {
+	game.players.Each(func(other *Player) bool {
+		game.server.Send(code, data, other.address)
+		return true
+	})
+}
+
+// BroadcastOthers sends the packet to all other players except the original sender.
 func (game *Game) BroadcastOthers(code byte, data []byte, exclude *Player) {
 	game.players.Each(func(other *Player) bool {
 		if other == exclude {
@@ -55,6 +63,7 @@ func (game *Game) network() {
 	game.server.SetHandler(packet.Login, game.Login)
 	game.server.SetHandler(packet.PlayerMove, game.Move)
 	game.server.SetHandler(packet.PlayerJump, game.Jump)
+	game.server.SetHandler(packet.Chat, game.Chat)
 	game.server.Run(4242)
 }
 

server/game/String.go

@@ -8,3 +8,10 @@ func AppendString(data []byte, str string) []byte {
 	data = append(data, []byte(str)...)
 	return data
 }
+
+// AppendStringBytes appends the length of the string followed by its contents.
+func AppendStringBytes(data []byte, str []byte) []byte {
+	data = binary.LittleEndian.AppendUint32(data, uint32(len(str)))
+	data = append(data, str...)
+	return data
+}

server/game/packet/packet.go

@@ -9,4 +9,5 @@ const (
 	PlayerMove   = 12
 	PlayerJump   = 13
 	PlayerAttack = 14
+	Chat         = 20
 )