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_mouse_icons/tooltip/target_tooltip.gd

@@ -0,0 +1,10 @@
+extends RichTextLabel
+
+var current_target : String
+
+func set_target(target : String) -> void:
+	current_target = target
+	update_tooltip_text()
+
+func update_tooltip_text():
+	bbcode_text = current_target

game/ui/ui_mouse_icons/tooltip/target_tooltip.tscn

@@ -0,0 +1,28 @@
+[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_mouse_icons/tooltip/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 = 0.7
+anchor_bottom = 0.06
+margin_left = 1.49829
+margin_right = 1.21826
+margin_bottom = -10.0
+custom_fonts/mono_font = SubResource( 1 )
+custom_fonts/normal_font = SubResource( 2 )
+bbcode_enabled = true
+bbcode_text = "[center][/center]"
+scroll_active = false
+script = ExtResource( 2 )
+__meta__ = {
+"_edit_use_anchors_": false
+}