diff --git a/project.godot b/project.godot
index e69cebb..ab0fa7f 100644
--- a/project.godot
+++ b/project.godot
@@ -23,7 +23,7 @@ config/windows_native_icon="res://icon.ico"
 
 [autoload]
 
-LevelEventBus="*res://scripts/level_event_bus.gd"
+LevelEventBus="*res://scripts/autoloads/level_event_bus.gd"
 
 [display]
 
diff --git a/scenes/gui/control.tscn b/scenes/gui/control.tscn
new file mode 100644
index 0000000..6fce186
--- /dev/null
+++ b/scenes/gui/control.tscn
@@ -0,0 +1,14 @@
+[gd_scene format=3 uid="uid://b1mbgkjvq5j76"]
+
+[node name="Control" type="Control"]
+layout_mode = 3
+anchors_preset = 15
+anchor_right = 1.0
+anchor_bottom = 1.0
+grow_horizontal = 2
+grow_vertical = 2
+
+[node name="ColorRect" type="ColorRect" parent="."]
+layout_mode = 0
+offset_right = 189.0
+offset_bottom = 128.0
diff --git a/scripts/autoloads/game_registry.gd b/scripts/autoloads/game_registry.gd
new file mode 100644
index 0000000..6767974
--- /dev/null
+++ b/scripts/autoloads/game_registry.gd
@@ -0,0 +1,23 @@
+extends Node
+
+class_name GameRegistry
+
+static func load_resources(directory : String, recursion : bool) -> Array[Resource]:
+	var result : Array[Resource] = []
+	var dir = DirAccess.open(directory)
+	if dir == null:
+		return result
+	# Used to ignore last slash if it was provided in _path
+	var path = dir.get_current_dir()
+	if recursion:
+		for subdir in dir.get_directories():
+			var subdir_path = "%s/%s" % [ path, subdir ]
+			result.append_array(load_resources(subdir_path,true))
+	
+	for filename in dir.get_files():
+		if !filename.ends_with('.tres'):
+			continue
+		var filepath = "%s/%s" % [ path, filename ]
+		var res = ResourceLoader.load(filepath)
+		result.append(res)
+	return result
diff --git a/scripts/autoloads/game_registry.gd.uid b/scripts/autoloads/game_registry.gd.uid
new file mode 100644
index 0000000..8fba163
--- /dev/null
+++ b/scripts/autoloads/game_registry.gd.uid
@@ -0,0 +1 @@
+uid://cu3cfhesth2np
diff --git a/scripts/level_event_bus.gd b/scripts/autoloads/level_event_bus.gd
similarity index 69%
rename from scripts/level_event_bus.gd
rename to scripts/autoloads/level_event_bus.gd
index cf58c35..9fb37bf 100644
--- a/scripts/level_event_bus.gd
+++ b/scripts/autoloads/level_event_bus.gd
@@ -7,7 +7,7 @@ class_name LevelSignals
 #region Field
 
 ## Emitted when entity is placed by player via seedpacket
-signal entity_placed(entity : SeedpacketResource)
+signal packet_placed(resource : SeedpacketResource)
 
 #endregion
 
@@ -25,16 +25,7 @@ signal entity_hp_changed(context : Entity.HPChangedContext)
 #region Seedpacket manipulation
 
 ## Called when player selects SeedpacketResource
-signal packet_selected(packet : SeedpacketResource)
-
-## Called when player selects SeedpacketResource during game phase
-signal packet_selected_during_game(packet : SeedpacketResource)
-
-## Called when something requests SeedpacketResource to be added to hotbar collection
-signal requested_packet_add(packet : SeedpacketResource)
-
-## Called when something requests SeedpacketResourcesource to be deleted from hotbar collection
-signal requested_packet_remove(packet : SeedpacketResource)
+signal packet_selected(resource : SeedpacketResource)
 
 ## Called when selected packets are updated
 signal hotbar_packets_update(selected : Array[SeedpacketResource])
diff --git a/scripts/level_event_bus.gd.uid b/scripts/autoloads/level_event_bus.gd.uid
similarity index 100%
rename from scripts/level_event_bus.gd.uid
rename to scripts/autoloads/level_event_bus.gd.uid
diff --git a/scripts/gui/seedpacket/hotbar_handler.gd b/scripts/gui/seedpacket/hotbar_handler.gd
new file mode 100644
index 0000000..dda5f43
--- /dev/null
+++ b/scripts/gui/seedpacket/hotbar_handler.gd
@@ -0,0 +1,32 @@
+extends SeedpacketHandler
+
+## Seedpacket handler for hotbar plants.
+
+class_name HotbarHandler
+
+## Is current state valid for use?
+
+var valid_state : bool = false
+var enough_sun : bool = true
+
+func _init(seedpacket : Seedpacket) -> void:
+	super._init(seedpacket)
+	LevelEventBus.state_changed.connect(on_level_state_changed)
+	LevelEventBus.sun_count_updated.connect(on_sun_count_updated)
+
+func exit() -> void:
+	LevelEventBus.state_changed.disconnect(on_level_state_changed)
+	LevelEventBus.sun_count_updated.disconnect(on_sun_count_updated)
+
+func is_avaiable():
+	return valid_state and enough_sun
+
+func on_level_state_changed(state : LevelData.LevelStates):
+	valid_state = state == LevelData.LevelStates.PlantPick or state == LevelData.LevelStates.Game
+	if state == LevelData.LevelStates.Game:
+		enough_sun = LevelData.sun_count >= seedpacket.held_resource.cost
+	seedpacket.update_contents()
+
+func on_sun_count_updated(to : float):
+	enough_sun = to >= seedpacket.held_resource.cost
+	seedpacket.update_contents()
diff --git a/scripts/gui/seedpacket/hotbar_handler.gd.uid b/scripts/gui/seedpacket/hotbar_handler.gd.uid
new file mode 100644
index 0000000..a364a07
--- /dev/null
+++ b/scripts/gui/seedpacket/hotbar_handler.gd.uid
@@ -0,0 +1 @@
+uid://dpgqhrfbjeo4e
diff --git a/scripts/gui/seedpacket/pickable_handler.gd b/scripts/gui/seedpacket/pickable_handler.gd
new file mode 100644
index 0000000..60d9bc2
--- /dev/null
+++ b/scripts/gui/seedpacket/pickable_handler.gd
@@ -0,0 +1,21 @@
+extends SeedpacketHandler
+
+class_name PickableHandler
+
+var chosen : bool
+var locked : bool = false
+var forbidden : bool = false
+
+func _init(seedpacket : Seedpacket) -> void:
+	super._init(seedpacket)
+	LevelEventBus.hotbar_packets_update.connect(on_hotbar_changed)
+
+func exit() -> void:
+	LevelEventBus.hotbar_packets_update.disconnect(on_hotbar_changed)
+
+func is_avaiable() -> bool:
+	return not (chosen or locked or forbidden)
+
+func on_hotbar_changed(to : Array[SeedpacketResource]):
+	chosen = to.has(seedpacket.held_resource)
+	seedpacket.update_contents()
diff --git a/scripts/gui/seedpacket/pickable_handler.gd.uid b/scripts/gui/seedpacket/pickable_handler.gd.uid
new file mode 100644
index 0000000..6af8154
--- /dev/null
+++ b/scripts/gui/seedpacket/pickable_handler.gd.uid
@@ -0,0 +1 @@
+uid://bwp180q5f5sr5
diff --git a/scripts/gui/seedpacket/seedpacket.gd b/scripts/gui/seedpacket/seedpacket.gd
index 887da5d..2599a50 100644
--- a/scripts/gui/seedpacket/seedpacket.gd
+++ b/scripts/gui/seedpacket/seedpacket.gd
@@ -1,5 +1,9 @@
 extends AspectRatioContainer
 
+## Class that allows player to choose SeedpacketResource
+
+class_name Seedpacket
+
 @onready var button := $TextureButton
 @onready var preview :=$TextureButton/PreviewContainer/Preview
 @onready var cost := $TextureButton/Cost
@@ -9,53 +13,33 @@ extends AspectRatioContainer
 @onready var locked_rect := $TextureButton/Locked
 
 var held_resource : SeedpacketResource
-var forbidden : bool = false
-var locked : bool = false
-var hotbar : bool = false
-var disabled : bool = false
-
-#region Godot methods
-func _ready() -> void:
-	LevelEventBus.entity_placed.connect(on_entity_placed)
-	LevelEventBus.sun_count_updated.connect(on_sun_count_updated)
-	LevelEventBus.state_changed.connect(on_level_state_changed)
+var handler : SeedpacketHandler
 
 func _process(_delta: float) -> void:
-	button.disabled = recharge_timer.time_left > 0 or forbidden or locked or disabled
-	update_contents()
-#endregion
+	button.disabled = recharge_timer.time_left > 0 or handler.is_avaiable() == false
 
-#region Signal methods
 func on_pressed():
 	LevelEventBus.packet_selected.emit(held_resource)
-	if LevelData.state == LevelData.LevelStates.Game:
-		LevelEventBus.packet_selected_during_game.emit(held_resource)
+	if LevelEventBus.packet_placed.is_connected(on_packet_placed) == false:
+		LevelEventBus.packet_placed.connect(on_packet_placed)
+		focus_exited.connect(disconnect_placement)
 
-func on_entity_placed(entity : SeedpacketResource):
-	if entity == held_resource:
-		recharge_timer.start()
-#endregion
-
-func set_resource(to : SeedpacketResource):
-	held_resource = to
+func set_handler(to : SeedpacketHandler):
+	if handler:
+		handler.exit()
+	handler = to
 	update_contents()
 
 func update_contents():
 	cost.text = str(held_resource.cost)
 	preview.texture = held_resource.preview
-	avaibility.visible = forbidden or locked or disabled
-	locked_rect.visible = locked
-	forbidden_rect.visible = forbidden
+	avaibility.visible = handler.is_avaiable() == false
+	handler.on_updated_contents()
 
-func on_sun_count_updated(to : float):
-	if hotbar:
-		disabled = held_resource.cost < to
+func on_packet_placed(packet : SeedpacketResource):
+	if held_resource != packet: return
+	disconnect_placement()
 
-func on_level_state_changed(state : LevelData.LevelStates):
-	match state:
-		LevelData.LevelStates.Game:
-			disabled = held_resource.cost < LevelData.sun_count
-		LevelData.LevelStates.PlantPick:
-			disabled = false
-		_:
-			disabled = true
+func disconnect_placement():
+	LevelEventBus.packet_placed.disconnect(on_packet_placed)
+	focus_exited.disconnect(disconnect_placement)
diff --git a/scripts/gui/seedpacket/seedpacket_handler.gd b/scripts/gui/seedpacket/seedpacket_handler.gd
new file mode 100644
index 0000000..d3afa12
--- /dev/null
+++ b/scripts/gui/seedpacket/seedpacket_handler.gd
@@ -0,0 +1,22 @@
+extends RefCounted
+
+## Class that is used as modular runtime behaviour for seedpacket
+
+class_name SeedpacketHandler
+
+## Seedpacket that uses this handler
+var seedpacket : Seedpacket
+
+func _init(packet : Seedpacket) -> void:
+	seedpacket = packet
+
+func exit() -> void:
+	pass
+
+## Invoked to check for avaiability
+func is_avaiable() -> bool:
+	return true
+
+## Invoked when seedpacket is requested to update
+func on_updated_contents() -> void:
+	pass
diff --git a/scripts/gui/seedpacket/seedpacket_handler.gd.uid b/scripts/gui/seedpacket/seedpacket_handler.gd.uid
new file mode 100644
index 0000000..959e3c0
--- /dev/null
+++ b/scripts/gui/seedpacket/seedpacket_handler.gd.uid
@@ -0,0 +1 @@
+uid://d4cd7rku78x21
diff --git a/scripts/resources/entity_resource.gd b/scripts/resources/entity_resource.gd
index 1239680..f7dbf43 100644
--- a/scripts/resources/entity_resource.gd
+++ b/scripts/resources/entity_resource.gd
@@ -1,4 +1,4 @@
-extends Resource
+extends GameIdentifiableResource
 
 ## Base class for every possible entity in game. Makes possible for entities to be spawned using seedpackets
 class_name SeedpacketResource
@@ -20,11 +20,3 @@ class_name SeedpacketResource
 
 ## Order to sort in almanach
 @export_range(0,4056,1,"or_greater","hide_slider") var order : int
-
-var gid : StringName = ""
-
-func get_gid() -> StringName:
-	if gid == "":
-		var split_path = resource_path.split("/")
-		gid = split_path[split_path.size()].trim_suffix(".tres").to_lower()
-	return gid
diff --git a/scripts/resources/game_identifiable_resource.gd b/scripts/resources/game_identifiable_resource.gd
new file mode 100644
index 0000000..b72727e
--- /dev/null
+++ b/scripts/resources/game_identifiable_resource.gd
@@ -0,0 +1,15 @@
+extends Resource
+
+## Class that has unique GID specified by its filename.
+
+class_name GameIdentifiableResource
+
+## Game identifactor. Generates from resource filename. Should be unique.
+var gid : StringName = ""
+
+## Gets GID. If resource has none, generates one.
+func get_gid() -> StringName:
+	if gid == "":
+		var split_path = resource_path.split("/")
+		gid = split_path[split_path.size()].trim_suffix(".tres").to_lower()
+	return gid
diff --git a/scripts/resources/game_identifiable_resource.gd.uid b/scripts/resources/game_identifiable_resource.gd.uid
new file mode 100644
index 0000000..27676db
--- /dev/null
+++ b/scripts/resources/game_identifiable_resource.gd.uid
@@ -0,0 +1 @@
+uid://v044g4j1khxd