Created ESCGame class to force game.tscn scene to have empty functions by inheritance.

Also continued some tests about tooltip following mouse.
Fixed project settings wrongly set.

game/ui/ui_9verbs/game.gd

@@ -1,4 +1,5 @@
-extends Node
+tool
+extends ESCGame
 
 """
 Implement methods to react to inputs.

game/ui/ui_9verbs/game.tscn

@@ -1,6 +1,6 @@
 [gd_scene load_steps=9 format=2]
 
-[ext_resource path="res://addons/escoria-core/template_scenes/label/action_target_tooltip.tscn" type="PackedScene" id=1]
+[ext_resource path="res://game/ui/ui_9verbs/tooltip/action_target_tooltip.tscn" type="PackedScene" id=1]
 [ext_resource path="res://game/ui/ui_9verbs/inventory/inventory_ui.tscn" type="PackedScene" id=2]
 [ext_resource path="res://game/ui/ui_9verbs/verbs_menu.tscn" type="PackedScene" id=3]
 [ext_resource path="res://addons/escoria-core/game/scenes/dialogs/dialog_player.tscn" type="PackedScene" id=4]
@@ -11,7 +11,7 @@
 [sub_resource type="StyleBoxFlat" id=1]
 bg_color = Color( 0.6, 0.6, 0.6, 0.5 )
 
-[node name="game" type="Node"]
+[node name="game" type="Node2D"]
 script = ExtResource( 5 )
 
 [node name="ui" type="CanvasLayer" parent="."]

game/ui/ui_9verbs/tooltip/action_target_tooltip.gd

@@ -0,0 +1,55 @@
+extends RichTextLabel
+
+# Infinitive verb
+var current_action : String
+# Target item/hotspot
+var current_target : String
+# Preposition: on, with...
+var current_prep : String = "with"
+# Target 2 item/hotspot
+var current_target2 : String
+
+var waiting_for_target2 = false
+
+func _ready():
+	escoria.esc_runner.connect("action_changed", self, "on_action_selected")
+
+
+func on_action_selected() -> void:
+	current_action = escoria.esc_runner.current_action
+	update_tooltip_text()
+
+
+func set_target(target : String, needs_second_target : bool = false) -> void:
+	current_target = target
+	if needs_second_target:
+		waiting_for_target2 = true
+	
+	update_tooltip_text()
+
+
+func set_target2(target2 : String) -> void:
+	current_target2 = target2
+	update_tooltip_text()
+
+
+func update_tooltip_text():
+	bbcode_text = "[center]"
+	
+	if !current_action.empty():
+		bbcode_text += current_action
+		bbcode_text += "\t"
+		
+	bbcode_text += current_target
+	
+	if waiting_for_target2 and current_target2.empty():
+		bbcode_text += "\t"
+		bbcode_text += current_prep
+		
+	if !current_target2.empty():
+		bbcode_text += "\t"
+		bbcode_text += current_prep
+		bbcode_text += "\t"
+		bbcode_text += current_target2
+	
+	bbcode_text += "[/center]"

game/ui/ui_9verbs/tooltip/action_target_tooltip.tscn

@@ -0,0 +1,26 @@
+[gd_scene load_steps=5 format=2]
+
+[ext_resource path="res://addons/escoria-core/game/assets/fonts/onesize/ONESIZE_.TTF" type="DynamicFontData" id=1]
+[ext_resource path="res://game/ui/ui_9verbs/tooltip/action_target_tooltip.gd" type="Script" id=2]
+
+[sub_resource type="DynamicFont" id=1]
+size = 30
+font_data = ExtResource( 1 )
+
+[sub_resource type="DynamicFont" id=2]
+size = 30
+font_data = ExtResource( 1 )
+
+[node name="tooltip" type="RichTextLabel"]
+anchor_right = 0.526
+anchor_bottom = 0.06
+margin_right = -0.280029
+margin_bottom = -10.0
+custom_fonts/mono_font = SubResource( 1 )
+custom_fonts/normal_font = SubResource( 2 )
+bbcode_enabled = true
+scroll_active = false
+script = ExtResource( 2 )
+__meta__ = {
+"_edit_use_anchors_": false
+}