implement pause system

Main.tscn

-[gd_scene load_steps=4 format=2]
-
-[ext_resource path="res://Main.gd" type="Script" id=1]
-[ext_resource path="res://UI.tscn" type="PackedScene" id=3]
-[ext_resource path="res://mini-game/MiniGame.tscn" type="PackedScene" id=4]
-
-[node name="Main" type="Node"]
-script = ExtResource( 1 )
-
-[node name="MiniGame" parent="." instance=ExtResource( 4 )]
-
-[node name="UI" parent="." instance=ExtResource( 3 )]
-[connection signal="game_over" from="MiniGame" to="." method="_on_MiniGame_game_over"]

fonts/ButtonFont.tres

+[gd_resource type="DynamicFont" load_steps=2 format=2]
+
+[ext_resource path="res://fonts/open-sans/OpenSans-Regular.ttf" type="DynamicFontData" id=1]
+
+[resource]
+size = 30
+font_data = ExtResource( 1 )

images/pause.svg

    inkscape:version="1.0.2 (1.0.2+r75+1)"
    sodipodi:docname="pause.svg"
    inkscape:export-filename="/home/vergnet/Godot/pir-serious-game-ethics/images/pause.png"
-   inkscape:export-xdpi="4.0640001"
-   inkscape:export-ydpi="4.0640001">
+   inkscape:export-xdpi="8.1280003"
+   inkscape:export-ydpi="8.1280003">
   <defs
      id="defs2">
     <inkscape:path-effect
      showgrid="false"
      inkscape:pagecheckerboard="true"
      inkscape:window-width="1920"
-     inkscape:window-height="1043"
-     inkscape:window-x="1920"
+     inkscape:window-height="993"
+     inkscape:window-x="0"
      inkscape:window-y="0"
      inkscape:window-maximized="1" />
   <metadata
         <dc:format>image/svg+xml</dc:format>
         <dc:type
            rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
-        <dc:title></dc:title>
+        <dc:title />
       </cc:Work>
     </rdf:RDF>
   </metadata>
        x="30.616072"
        y="7.5595241"
        inkscape:path-effect="#path-effect12"
-       d="M 30.616072,7.5595241 H 81.642859 V 180.67262 H 30.616072 Z m -28.8955677,0 H -49.306282 V 180.67262 H 1.7205043 Z"
+       d="M 30.616072,7.5595241 H 81.642859 V 180.67262 H 30.616072 Z m -51.24897,0 H -71.659685 V 180.67262 h 51.026787 z"
        sodipodi:type="rect"
        transform="matrix(0.97264845,0,0,1,95.144941,5.8839269)" />
   </g>

mini-game/scenes/decor/foreground.gd

 
 onready var texture : TextureRect = $TextureRect
 
+var moving = false
+
 func stop():
+	moving = false
 	texture.material.set_shader_param("scroll_speed", 0)
 
 func start():
+	moving = true
 	texture.material.set_shader_param("scroll_speed", 0.2)
+
+func _process(delta):
+	if get_tree().paused and moving:
+		stop()
+	elif not get_tree().paused and not moving:
+		start()

mini-game/scenes/decor/foreground.tscn

 extents = Vector2( 958.398, 78.6175 )
 
 [node name="foreground" type="Node2D"]
+pause_mode = 2
 script = ExtResource( 1 )
 
 [node name="TextureRect" type="TextureRect" parent="."]

project.godot

 [application]
 
 config/name="Pir-serious-game-ethics"
-run/main_scene="res://Main.tscn"
+run/main_scene="res://scenes/Main.tscn"
 config/icon="res://icon.png"
 
 [autoload]

scenes/Main.tscn

+[gd_scene load_steps=4 format=2]
+
+[ext_resource path="res://scenes/Main.gd" type="Script" id=1]
+[ext_resource path="res://scenes/UI.tscn" type="PackedScene" id=2]
+[ext_resource path="res://mini-game/MiniGame.tscn" type="PackedScene" id=3]
+
+[node name="Main" type="Node"]
+script = ExtResource( 1 )
+
+[node name="MiniGame" parent="." instance=ExtResource( 3 )]
+
+[node name="UI" parent="." instance=ExtResource( 2 )]
+[connection signal="game_over" from="MiniGame" to="." method="_on_MiniGame_game_over"]

scenes/PauseMenu.gd

+extends Control
+
+func pause():
+	get_tree().paused = true
+	show()
+
+
+func unpause():
+	get_tree().paused = false
+	hide()
+
+
+func _ready():
+	connect("gui_input", self, '_on_gui_input')
+
+func _input(event: InputEvent):
+	if event.is_action_pressed("ui_cancel") and visible:
+		unpause()
+		get_tree().set_input_as_handled()
+
+
+func _on_BackgroundButton_pressed():
+	unpause()
+
+
+func _on_ContinueButton_pressed():
+	unpause()
+
+
+func _on_ExitButton_pressed():
+	get_tree().quit(0)

scenes/PauseMenu.tscn

+[gd_scene load_steps=6 format=2]
+
+[ext_resource path="res://scenes/PauseMenu.gd" type="Script" id=1]
+[ext_resource path="res://images/pause.png" type="Texture" id=2]
+[ext_resource path="res://fonts/ButtonFont.tres" type="DynamicFont" id=3]
+[ext_resource path="res://fonts/open-sans/OpenSans-Light.ttf" type="DynamicFontData" id=4]
+
+[sub_resource type="DynamicFont" id=1]
+size = 50
+font_data = ExtResource( 4 )
+
+[node name="PauseMenu" type="Control"]
+pause_mode = 2
+anchor_right = 1.0
+anchor_bottom = 1.0
+script = ExtResource( 1 )
+__meta__ = {
+"_edit_use_anchors_": false
+}
+
+[node name="Background" type="ColorRect" parent="."]
+anchor_right = 1.0
+anchor_bottom = 1.0
+color = Color( 0, 0, 0, 0.196078 )
+__meta__ = {
+"_edit_use_anchors_": false
+}
+
+[node name="BackgroundButton" type="TextureButton" parent="."]
+anchor_right = 1.0
+anchor_bottom = 1.0
+expand = true
+__meta__ = {
+"_edit_use_anchors_": false
+}
+
+[node name="MarginContainer" type="MarginContainer" parent="."]
+anchor_right = 1.0
+anchor_bottom = 1.0
+mouse_filter = 2
+custom_constants/margin_right = 400
+custom_constants/margin_top = 100
+custom_constants/margin_left = 400
+custom_constants/margin_bottom = 100
+__meta__ = {
+"_edit_use_anchors_": false
+}
+
+[node name="ColorRect" type="ColorRect" parent="MarginContainer"]
+margin_left = 400.0
+margin_top = 100.0
+margin_right = 1520.0
+margin_bottom = 980.0
+color = Color( 0.164706, 0.180392, 0.196078, 1 )
+
+[node name="MarginContainer2" type="MarginContainer" parent="MarginContainer/ColorRect"]
+anchor_right = 1.0
+anchor_bottom = 1.0
+custom_constants/margin_right = 50
+custom_constants/margin_top = 50
+custom_constants/margin_left = 50
+custom_constants/margin_bottom = 50
+__meta__ = {
+"_edit_use_anchors_": false
+}
+
+[node name="VBoxContainer" type="VBoxContainer" parent="MarginContainer/ColorRect/MarginContainer2"]
+margin_left = 50.0
+margin_top = 50.0
+margin_right = 1070.0
+margin_bottom = 830.0
+__meta__ = {
+"_edit_use_anchors_": false
+}
+
+[node name="CenterContainer" type="CenterContainer" parent="MarginContainer/ColorRect/MarginContainer2/VBoxContainer"]
+margin_right = 1020.0
+margin_bottom = 64.0
+
+[node name="TextureRect" type="TextureRect" parent="MarginContainer/ColorRect/MarginContainer2/VBoxContainer/CenterContainer"]
+margin_left = 478.0
+margin_right = 542.0
+margin_bottom = 64.0
+texture = ExtResource( 2 )
+
+[node name="Text" type="Label" parent="MarginContainer/ColorRect/MarginContainer2/VBoxContainer"]
+margin_top = 68.0
+margin_right = 1020.0
+margin_bottom = 728.0
+size_flags_vertical = 3
+custom_fonts/font = SubResource( 1 )
+text = "Le jeu est en pause"
+align = 1
+valign = 1
+
+[node name="HBoxContainer" type="HBoxContainer" parent="MarginContainer/ColorRect/MarginContainer2/VBoxContainer"]
+margin_top = 732.0
+margin_right = 1020.0
+margin_bottom = 780.0
+custom_constants/separation = 50
+alignment = 1
+
+[node name="ExitButton" type="Button" parent="MarginContainer/ColorRect/MarginContainer2/VBoxContainer/HBoxContainer"]
+margin_left = 353.0
+margin_right = 465.0
+margin_bottom = 48.0
+custom_fonts/font = ExtResource( 3 )
+text = "Quitter"
+
+[node name="ContinueButton" type="Button" parent="MarginContainer/ColorRect/MarginContainer2/VBoxContainer/HBoxContainer"]
+margin_left = 515.0
+margin_right = 666.0
+margin_bottom = 48.0
+custom_fonts/font = ExtResource( 3 )
+text = "Continuer"
+[connection signal="pressed" from="BackgroundButton" to="." method="_on_BackgroundButton_pressed"]
+[connection signal="pressed" from="MarginContainer/ColorRect/MarginContainer2/VBoxContainer/HBoxContainer/ExitButton" to="." method="_on_ExitButton_pressed"]
+[connection signal="pressed" from="MarginContainer/ColorRect/MarginContainer2/VBoxContainer/HBoxContainer/ContinueButton" to="." method="_on_ContinueButton_pressed"]

scenes/UI.gd

+extends Control
+
+
+func _on_TextureButton_pressed():
+	$PauseMenu.pause()

UI.tscn → scenes/UI.tscn

-[gd_scene load_steps=2 format=2]
+[gd_scene load_steps=4 format=2]
 
 [ext_resource path="res://images/pause.png" type="Texture" id=1]
+[ext_resource path="res://scenes/PauseMenu.tscn" type="PackedScene" id=2]
+[ext_resource path="res://scenes/UI.gd" type="Script" id=3]
 
 [node name="UI" type="Control"]
 anchor_right = 1.0
 margin_top = -0.471939
 margin_bottom = -0.471924
 mouse_filter = 2
+script = ExtResource( 3 )
 __meta__ = {
 "_edit_use_anchors_": false
 }
 margin_left = 10.0
 margin_top = 10.0
 margin_right = 1910.0
-margin_bottom = 42.0
+margin_bottom = 74.0
 hint_tooltip = "Mettre en pause"
 size_flags_horizontal = 3
 __meta__ = {
 }
 
 [node name="Label" type="Label" parent="MarginContainer/HBoxContainer"]
-margin_right = 1864.0
+margin_right = 1832.0
 margin_bottom = 14.0
 size_flags_horizontal = 3
 size_flags_vertical = 0
 }
 
 [node name="TextureButton" type="TextureButton" parent="MarginContainer/HBoxContainer"]
-margin_left = 1868.0
+margin_left = 1836.0
 margin_right = 1900.0
-margin_bottom = 32.0
+margin_bottom = 64.0
 texture_normal = ExtResource( 1 )
+
+[node name="ColorRect" type="ColorRect" parent="MarginContainer/HBoxContainer/TextureButton"]
+show_behind_parent = true
+anchor_right = 1.0
+anchor_bottom = 1.0
+mouse_filter = 2
+color = Color( 0, 0, 0, 0.231373 )
+__meta__ = {
+"_edit_use_anchors_": false
+}
+
+[node name="PauseMenu" parent="." instance=ExtResource( 2 )]
+[connection signal="pressed" from="MarginContainer/HBoxContainer/TextureButton" to="." method="_on_TextureButton_pressed"]