4 files changed, 46 insertions, 14 deletions
diff --git a/Game/Client.gd b/Game/Client.gd
index 2c3bb69..7ca26ec 100644
--- a/Game/Client.gd
+++ b/Game/Client.gd
@@ -16,16 +16,17 @@ var state: State :
 
 var current_stage: Stage
 
+var selection: SelectionManager
+
 var player: Player:
 	get():
 		return Network.get_player(multiplayer.get_unique_id())
 
 
-func _ready():
-	pass
-
-
 func initialize_stage(stage: Stage):
+	selection = preload("res://Game/Selection/SelectionManager.tscn").instantiate()
+	add_child(selection)
+	
 	current_stage = stage
 
 
diff --git a/Game/Selection/SelectionManager.gd b/Game/Selection/SelectionManager.gd
index c58dc69..49cb319 100644
--- a/Game/Selection/SelectionManager.gd
+++ b/Game/Selection/SelectionManager.gd
@@ -2,5 +2,29 @@ class_name SelectionManager
 extends Node
 
 
+var selection_groups := {}
+
+signal selected_group_changed
+var selected_group := "":
+	set(value):
+		selected_group = value
+		selected_group_changed.emit()
+
+
 func _ready() -> void:
 	pass
+
+
+func change_selection_group_id(towers: Array[Tower], previous_id: String, new_id: String) -> void:
+	if new_id not in selection_groups:
+		selection_groups[new_id] = []
+	
+	selection_groups[new_id].append_array(towers)
+	
+	for tower in towers:
+		selection_groups[previous_id].erase(tower)
+	
+	if selection_groups[previous_id].is_empty():
+		selection_groups.erase(previous_id)
+		if previous_id == selected_group:
+			selected_group = new_id
diff --git a/Game/Selection/SelectionManager.tscn b/Game/Selection/SelectionManager.tscn
new file mode 100644
index 0000000..e89880f
--- /dev/null
+++ b/Game/Selection/SelectionManager.tscn
@@ -0,0 +1,6 @@
+[gd_scene load_steps=2 format=3 uid="uid://mgm4npqeybbr"]
+
+[ext_resource type="Script" path="res://Game/Selection/SelectionManager.gd" id="1_1w5l7"]
+
+[node name="SelectionManager" type="Node"]
+script = ExtResource("1_1w5l7")
diff --git a/Game/States/Build/StateBuild.gd b/Game/States/Build/StateBuild.gd
index ea06671..0bd5efb 100644
--- a/Game/States/Build/StateBuild.gd
+++ b/Game/States/Build/StateBuild.gd
@@ -19,18 +19,19 @@ func _state_exit():
 
 func _state_input(event: InputEvent):
 	if event.is_action_pressed("builder_tower_select"):
-		if current_builder_element and current_builder_element.can_build():
+		if current_builder_element:
 			get_viewport().set_input_as_handled()
 			
-			var placed_tower = current_builder_element.element.instantiate() as Tower
-			
-			placed_tower.global_position = current_builder_element.global_position
-			
-			Client.place_tower(placed_tower)
-			
-			if not Input.is_action_pressed("builder_tower_place_keep"):
-				current_builder_element.queue_free()
-				current_builder_element = null
+			if current_builder_element.can_build():
+				var placed_tower = current_builder_element.element.instantiate() as Tower
+				
+				placed_tower.global_position = current_builder_element.global_position
+				
+				Client.place_tower(placed_tower)
+				
+				if not Input.is_action_pressed("builder_tower_place_keep"):
+					current_builder_element.queue_free()
+					current_builder_element = null
 		
 	if event.is_action_pressed("build_mode_start"):
 		get_viewport().set_input_as_handled()