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.

project.godot

@@ -29,6 +29,11 @@ _global_script_classes=[ {
 "language": "GDScript",
 "path": "res://addons/escoria-core/game/scenes/dialogs/dialog_player.gd"
 }, {
+"base": "Node2D",
+"class": "ESCGame",
+"language": "GDScript",
+"path": "res://addons/escoria-core/game/core-scripts/escgame.gd"
+}, {
 "base": "Control",
 "class": "ESCInventory",
 "language": "GDScript",
@@ -69,6 +74,7 @@ _global_script_class_icons={
 "ESCCamera": "",
 "ESCCharacter": "",
 "ESCDialogsPlayer": "",
+"ESCGame": "",
 "ESCInventory": "",
 "ESCInventoryItem": "",
 "ESCItem": "",
@@ -108,18 +114,17 @@ enabled=PoolStringArray( "escoria-core" )
 
 [escoria]
 
-debug/terminate_on_errors=true
 main/game_start_script="res://game/start_game.esc"
-main/main_menu_scene="res://game/ui/commons/main_menu.tscn"
-debug/terminate_on_warnings=false
 main/force_quit=true
-internals/save_data=""
+debug/terminate_on_warnings=false
+debug/terminate_on_errors=true
 debug/development_lang="en"
-ui/tooltip_follows_mouse=true
-ui/game_scene="res://game/ui/ui_9verbs/game.tscn"
-ui/main_menu_scene="res://game/ui/commons/main_menu.tscn"
-ui/default_dialog_scene="res://game/ui/commons/dialogs/dialog_label.tscn"
+ui/tooltip_follows_mouse=false
 ui/dialogs_folder="res://game/ui/commons/dialogs"
+ui/default_dialog_scene="res://game/ui/commons/dialogs/dialog_label.tscn"
+ui/main_menu_scene="res://game/ui/commons/main_menu.tscn"
+ui/game_scene="res://game/ui/ui_9verbs/game.tscn"
+internals/save_data=""
 
 [input]