start work on inventory, items, coins

data/meat.tres

@@ -0,0 +1,10 @@
+[gd_resource type="Resource" script_class="InventoryItem" load_steps=3 format=3 uid="uid://cbbclpp04ptlf"]
+
+[ext_resource type="Texture2D" uid="uid://cb6qv3c0iojfl" path="res://icon.svg" id="1_2wt7x"]
+[ext_resource type="Script" path="res://src/lib/inventory_item.gd" id="2_inc63"]
+
+[resource]
+script = ExtResource("2_inc63")
+icon = ExtResource("1_2wt7x")
+name = "Meat"
+id = &"meat"

src/ingame/ingame.gd

@@ -11,6 +11,7 @@ extends Node3D
 @export var _chat_panel_inactive: Panel
 @export var _chat_history_inactive: VBoxContainer
 @export var _chat_history_scroll_inactive: ScrollContainer
+@export var _coin_label: RichTextLabel
 
 ## Things to yet play, so to not repeat ourselves much.
 const PLAYLIST: Array[String] = [
@@ -83,6 +84,11 @@ func _input(event: InputEvent) -> void:
 		_deactivate_chat()
 
 
+func _process(_delta: float) -> void:
+	# this is fine but should this be done in response to a signal instead?
+	_coin_label.text = "COINS: %d" % GameState.fetch().coins
+
+
 func _activate_chat() -> void:
 	_chat_panel.show()
 	_chat_panel_inactive.hide()

src/ingame/ingame.tscn

@@ -32,7 +32,7 @@ sky = SubResource("Sky_ygvd3")
 ambient_light_color = Color(0, 0.164706, 0.278431, 1)
 ambient_light_energy = 2.0
 
-[node name="Ingame" type="Node3D" node_paths=PackedStringArray("_soundtrack", "_players", "_chat_panel", "_chat_input", "_chat_history_scroll", "_chat_history", "_chat_panel_inactive", "_chat_history_inactive", "_chat_history_scroll_inactive")]
+[node name="Ingame" type="Node3D" node_paths=PackedStringArray("_soundtrack", "_players", "_chat_panel", "_chat_input", "_chat_history_scroll", "_chat_history", "_chat_panel_inactive", "_chat_history_inactive", "_chat_history_scroll_inactive", "_coin_label")]
 script = ExtResource("1_akuuj")
 _player_scene = ExtResource("2_w1gjc")
 _soundtrack = NodePath("Soundtrack")
@@ -44,6 +44,7 @@ _chat_history = NodePath("UI/ChatPanel/ChatHistoryScroll/ChatHistory")
 _chat_panel_inactive = NodePath("UI/ChatPanelInactive")
 _chat_history_inactive = NodePath("UI/ChatPanelInactive/ChatHistoryScroll/ChatHistory")
 _chat_history_scroll_inactive = NodePath("UI/ChatPanelInactive/ChatHistoryScroll")
+_coin_label = NodePath("UI/CoinLabel")
 
 [node name="Soundtrack" type="AudioStreamPlayer" parent="."]
 bus = &"Music"
@@ -165,6 +166,15 @@ text = "+5!"
 wait_time = 3.0
 one_shot = true
 
+[node name="CoinLabel" type="RichTextLabel" parent="UI"]
+clip_contents = false
+offset_left = 16.0
+offset_top = 16.0
+offset_right = 192.0
+offset_bottom = 40.0
+theme_override_constants/outline_size = 6
+text = "Coins: 0"
+
 [node name="CSGBox3D" type="CSGBox3D" parent="."]
 transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 7.45058e-09, 0)
 collision_mask = 0

src/ingame/water_bomb.gd

@@ -80,8 +80,8 @@ func get_picked_up() -> void:
 
 
 func mark_interactive() -> void:
-	($Model as CSGSphere3D).material_override.next_pass.set("shader_parameter/color", Color.WHITE)
+	(_model as CSGSphere3D).material_override.next_pass.set("shader_parameter/color", Color.WHITE)
 
 
 func mark_non_interactive() -> void:
-	($Model as CSGSphere3D).material_override.next_pass.set("shader_parameter/color", Color(1, 1, 1, 0))
+	(_model as CSGSphere3D).material_override.next_pass.set("shader_parameter/color", Color(1, 1, 1, 0))

src/lib/game_state.gd

@@ -1,7 +1,15 @@
 class_name GameState
 extends Resource
 
+const INVENTORY_ITEM_DB = {
+	&"meat": preload("res://data/meat.tres"),
+}
+
+# keys are multiplayer ID ints, values are PlayerData
 @export var player_data := {}
+# keys are InventoryItem resource IDs (from db), values are InventoryItems
+@export var inventory := {}
+@export var coins: int
 
 static var _instance := GameState.new()
 

src/lib/inventory_item.gd

@@ -1,6 +1,8 @@
-class_name Item
+class_name InventoryItem
 extends Resource
 
 @export var icon: Texture2D = preload("res://icon.svg")
 @export var name := "NAME"
 @export var id := &"ID"
+
+@export var count := 0

src/main/main.gd

@@ -35,6 +35,11 @@ func _on_player_joined(id: int) -> void:
 		_register_player.rpc_id(id, username)
 	
 	if _game_started:
+		set_coins.rpc_id(id, GameState.fetch().coins)
+		
+		for item_id in GameState.fetch().inventory:
+			set_inventory_item_count.rpc_id(id, item_id, GameState.fetch().inventory[item_id].count)
+		
 		_start_game.rpc_id(id)
 
 
@@ -173,3 +178,39 @@ func _on_chat_message_submitted(text := "") -> void:
 	
 	_submit_chat_message.rpc_id(1, _chat_input.text)
 	_chat_input.clear()
+
+
+@rpc("authority", "call_local", "reliable")
+func set_coins(value: int) -> void:
+	GameState.fetch().coins = value
+
+
+@rpc("authority", "call_local", "reliable")
+func add_inventory_item(item_id: StringName, amount: int) -> void:
+	if not GameState.fetch().inventory.has(item_id):
+		GameState.fetch().inventory[item_id] = GameState.INVENTORY_ITEM_DB[item_id].duplicate()
+	
+	GameState.fetch().inventory[item_id].count += amount
+
+
+@rpc("authority", "call_local", "reliable")
+func remove_inventory_item(item_id: StringName, amount: int) -> void:
+	assert(GameState.fetch().inventory.has(item_id))
+	
+	GameState.fetch().inventory[item_id].count -= amount
+	assert(GameState.fetch().inventory[item_id].count >= 0)
+	
+	if GameState.fetch().inventory[item_id].count == 0:
+		GameState.fetch().inventory.erase(item_id)
+
+
+@rpc("authority", "call_local", "reliable")
+func set_inventory_item_count(item_id: StringName, value: int) -> void:
+	assert(value >= 0)
+	if not GameState.fetch().inventory.has(item_id):
+		GameState.fetch().inventory[item_id] = GameState.INVENTORY_ITEM_DB[item_id].duplicate()
+	
+	GameState.fetch().inventory[item_id].count = value
+	
+	if GameState.fetch().inventory[item_id].count == 0:
+		GameState.fetch().inventory.erase(item_id)