:tada: Choose preview of selected level

labs/cascade/Arena1.tscn

@@ -3,9 +3,6 @@
 [ext_resource path="res://labs/cascade/component/bar/Bar.tscn" type="PackedScene" id=1]
 [ext_resource path="res://labs/cascade/component/ball/Ball.tscn" type="PackedScene" id=2]
 
-
-
-
 [node name="Arena1" type="Node"]
 
 [node name="Bar" parent="." instance=ExtResource( 1 )]

labs/cascade/arena1.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/arena1.png-a2ef9bd697c789891a2c10e62dfc488c.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://labs/cascade/arena1.png"
+dest_files=[ "res://.import/arena1.png-a2ef9bd697c789891a2c10e62dfc488c.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=0
+flags/filter=true
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=2
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+stream=false
+size_limit=0
+detect_3d=true
+svg/scale=1.0

menu/Menu.tscn

@@ -0,0 +1,98 @@
+[gd_scene load_steps=6 format=2]
+
+[ext_resource path="res://icon.png" type="Texture" id=1]
+[ext_resource path="res://labs/cascade/arena1.png" type="Texture" id=2]
+[ext_resource path="res://labs/factory/component/arena/tiny-gray-tiles.png" type="Texture" id=3]
+[ext_resource path="res://menu/button/select/SelectButton.tscn" type="PackedScene" id=4]
+[ext_resource path="res://menu/thumbnail/Thumbnail.gd" type="Script" id=5]
+
+[node name="Menu" type="Control"]
+anchor_right = 1.0
+anchor_bottom = 1.0
+__meta__ = {
+"_edit_use_anchors_": false
+}
+
+[node name="Title" type="Label" parent="."]
+anchor_top = 0.1
+anchor_right = 1.0
+anchor_bottom = 0.1
+text = "Godot Lab"
+align = 1
+__meta__ = {
+"_edit_use_anchors_": false
+}
+
+[node name="SettingsButton" type="Button" parent="."]
+margin_left = 10.0
+margin_top = 10.0
+margin_right = 12.0
+margin_bottom = 20.0
+text = "Settings"
+
+[node name="Logo" type="TextureRect" parent="."]
+anchor_left = 0.2
+anchor_top = 0.2
+anchor_right = 0.8
+anchor_bottom = 0.4
+margin_bottom = -10.0
+texture = ExtResource( 1 )
+stretch_mode = 6
+
+[node name="LabSelector" type="Control" parent="."]
+anchor_top = 0.4
+anchor_right = 0.3
+anchor_bottom = 1.0
+margin_left = 10.0
+margin_top = 10.0
+margin_right = -10.0
+margin_bottom = -10.0
+
+[node name="Lab1" parent="LabSelector" instance=ExtResource( 4 )]
+text = "Cascade"
+
+[node name="Lab2" parent="LabSelector" instance=ExtResource( 4 )]
+margin_top = 50.0
+margin_bottom = 80.0
+text = "Factory"
+index = 1
+
+[node name="LabLauncher" type="Control" parent="."]
+anchor_left = 0.3
+anchor_top = 0.4
+anchor_right = 1.0
+anchor_bottom = 1.0
+margin_left = 10.0
+margin_top = 10.0
+margin_right = -10.0
+margin_bottom = -10.0
+
+[node name="Thumbnail" type="TextureRect" parent="LabLauncher"]
+anchor_right = 1.0
+anchor_bottom = 1.0
+margin_left = 20.0
+margin_top = 10.0
+margin_right = -20.0
+margin_bottom = -60.0
+texture = ExtResource( 2 )
+stretch_mode = 6
+script = ExtResource( 5 )
+__meta__ = {
+"_edit_use_anchors_": false
+}
+pictures = [ ExtResource( 2 ), ExtResource( 3 ) ]
+
+[node name="StartButton" type="Button" parent="LabLauncher"]
+anchor_top = 1.0
+anchor_right = 1.0
+anchor_bottom = 1.0
+margin_left = 10.0
+margin_top = -40.0
+margin_right = -10.0
+margin_bottom = -10.0
+text = "Start"
+__meta__ = {
+"_edit_use_anchors_": false
+}
+[connection signal="lab_selected" from="LabSelector/Lab1" to="LabLauncher/Thumbnail" method="_on_lab_selected"]
+[connection signal="lab_selected" from="LabSelector/Lab2" to="LabLauncher/Thumbnail" method="_on_lab_selected"]

menu/button/select/SelectButton.gd

@@ -0,0 +1,12 @@
+class_name SelectButton
+extends Button
+
+
+signal lab_selected
+
+
+export(int) var index := 0
+
+
+func _on_self_pressed():
+	emit_signal("lab_selected", index)

menu/button/select/SelectButton.tscn

@@ -0,0 +1,16 @@
+[gd_scene load_steps=2 format=2]
+
+[ext_resource path="res://menu/button/select/SelectButton.gd" type="Script" id=1]
+
+[node name="SelectButton" type="Button"]
+anchor_right = 1.0
+margin_left = 10.0
+margin_top = 10.0
+margin_right = -10.0
+margin_bottom = 40.0
+text = "Lab name"
+script = ExtResource( 1 )
+__meta__ = {
+"_edit_use_anchors_": false
+}
+[connection signal="pressed" from="." to="." method="_on_self_pressed"]

menu/thumbnail/Thumbnail.gd

@@ -0,0 +1,14 @@
+extends TextureRect
+
+
+export (Array, Texture) var pictures
+
+
+func display(index: int) -> void:
+	assert(index >= 0, "Index must be positive")
+	assert(index < pictures.size(), "Index must be within bounds")
+	texture = pictures[index]
+
+
+func _on_lab_selected(index: int) -> void:
+	display(index)

project.godot

@@ -8,15 +8,21 @@
 
 config_version=4
 
-_global_script_classes=[  ]
+_global_script_classes=[ {
+"base": "Button",
+"class": "SelectButton",
+"language": "GDScript",
+"path": "res://menu/button/select/SelectButton.gd"
+} ]
 _global_script_class_icons={
-
+"SelectButton": ""
 }
 
 [application]
 
-config/name="New Game Project"
-run/main_scene="res://labs/cascade/Arena1.tscn"
+config/name="Godot Laboratory"
+config/description="An project to carry out experiments"
+run/main_scene="res://menu/Menu.tscn"
 config/icon="res://icon.png"
 
 [rendering]