init

.editorconfig

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+root = true
+
+[*]
+charset = utf-8

.gitattributes

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+# Normalize EOL for all files that Git considers text files.
+* text=auto eol=lf

.gitignore

@@ -0,0 +1,6 @@
+# Godot 4+ specific ignores
+.godot/
+/android/
+
+.vscode
+.idea

Slimepire.csproj

@@ -0,0 +1,12 @@
+<Project Sdk="Godot.NET.Sdk/4.6.3">
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+    <TargetFramework Condition=" '$(GodotTargetPlatform)' == 'android' ">net9.0</TargetFramework>
+    <EnableDynamicLoading>true</EnableDynamicLoading>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+  <ItemGroup>
+    <PackageReference Include="GodotSharp.SourceGenerators" Version="2.7.0" />
+  </ItemGroup>
+</Project>

Slimepire.sln

@@ -0,0 +1,19 @@
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 2012
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Slimepire", "Slimepire.csproj", "{4D5460EF-2589-4714-8A0D-1A2238B0058F}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+	Debug|Any CPU = Debug|Any CPU
+	ExportDebug|Any CPU = ExportDebug|Any CPU
+	ExportRelease|Any CPU = ExportRelease|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{4D5460EF-2589-4714-8A0D-1A2238B0058F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{4D5460EF-2589-4714-8A0D-1A2238B0058F}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{4D5460EF-2589-4714-8A0D-1A2238B0058F}.ExportDebug|Any CPU.ActiveCfg = ExportDebug|Any CPU
+		{4D5460EF-2589-4714-8A0D-1A2238B0058F}.ExportDebug|Any CPU.Build.0 = ExportDebug|Any CPU
+		{4D5460EF-2589-4714-8A0D-1A2238B0058F}.ExportRelease|Any CPU.ActiveCfg = ExportRelease|Any CPU
+		{4D5460EF-2589-4714-8A0D-1A2238B0058F}.ExportRelease|Any CPU.Build.0 = ExportRelease|Any CPU
+	EndGlobalSection
+EndGlobal

Slimepire.sln.DotSettings.user

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+	<s:String x:Key="/Default/CodeInspection/ExcludedFiles/FilesAndFoldersToSkip2/=7020124F_002D9FFC_002D4AC3_002D8F3D_002DAAB8E0240759_002Ff_003ASingletonAttribute_002Ecs_002Fl_003A_002E_002E_003F_002E_002E_003FAppData_003FRoaming_003FJetBrains_003FRider2026_002E1_003Fresharper_002Dhost_003FDecompilerCache_003Fdecompiler_003Fe3fd2c31500d4d359fd6e9d5ca458884e0400_003F77_003F87840b05_003FSingletonAttribute_002Ecs/@EntryIndexedValue">ForceIncluded</s:String>
+	<s:String x:Key="/Default/CodeInspection/ExcludedFiles/FilesAndFoldersToSkip2/=7020124F_002D9FFC_002D4AC3_002D8F3D_002DAAB8E0240759_002Ff_003ASlimepire_002Ecore_002Emain_005Fgame_002EMainGame_002Eg_002Ecs_002Fl_003A_002E_002E_003F_002E_002E_003FAppData_003FLocal_003FTemp_003FSourceGeneratedDocuments_003FC94839DE7EFB2DDB55DF1241_003FGodotSharp_002ESourceGenerators_003FGodotSharp_002ESourceGenerators_002ESceneTreeExtensions_002ESceneTreeSourceGenerator_003FSlimepire_002Ecore_002Emain_005Fgame_002EMainGame_002Eg_002Ecs/@EntryIndexedValue">ForceIncluded</s:String></wpf:ResourceDictionary>

assets/Sprite-0001.png.import

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+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://cecg47efx7gw8"
+path="res://.godot/imported/Sprite-0001.png-301f2c522e57282b7df856433eb0ee72.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
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+dest_files=["res://.godot/imported/Sprite-0001.png-301f2c522e57282b7df856433eb0ee72.ctex"]
+
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+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
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+process/channel_remap/red=0
+process/channel_remap/green=1
+process/channel_remap/blue=2
+process/channel_remap/alpha=3
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1

assets/blob.png.import

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+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://dgv640g1c6vop"
+path="res://.godot/imported/blob.png-fa0fa46bc6d8b1788699212647907671.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://assets/blob.png"
+dest_files=["res://.godot/imported/blob.png-fa0fa46bc6d8b1788699212647907671.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/uastc_level=0
+compress/rdo_quality_loss=0.0
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+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/channel_remap/red=0
+process/channel_remap/green=1
+process/channel_remap/blue=2
+process/channel_remap/alpha=3
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1

assets/icon.svg

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+<svg xmlns="http://www.w3.org/2000/svg" width="128" height="128"><rect width="124" height="124" x="2" y="2" fill="#363d52" stroke="#212532" stroke-width="4" rx="14"/><g fill="#fff" transform="translate(12.322 12.322)scale(.101)"><path d="M105 673v33q407 354 814 0v-33z"/><path fill="#478cbf" d="m105 673 152 14q12 1 15 14l4 67 132 10 8-61q2-11 15-15h162q13 4 15 15l8 61 132-10 4-67q3-13 15-14l152-14V427q30-39 56-81-35-59-83-108-43 20-82 47-40-37-88-64 7-51 8-102-59-28-123-42-26 43-46 89-49-7-98 0-20-46-46-89-64 14-123 42 1 51 8 102-48 27-88 64-39-27-82-47-48 49-83 108 26 42 56 81zm0 33v39c0 276 813 276 814 0v-39l-134 12-5 69q-2 10-14 13l-162 11q-12 0-16-11l-10-65H446l-10 65q-4 11-16 11l-162-11q-12-3-14-13l-5-69z"/><path d="M483 600c0 34 58 34 58 0v-86c0-34-58-34-58 0z"/><circle cx="725" cy="526" r="90"/><circle cx="299" cy="526" r="90"/></g><g fill="#414042" transform="translate(12.322 12.322)scale(.101)"><circle cx="307" cy="532" r="60"/><circle cx="717" cy="532" r="60"/></g></svg>

assets/icon.svg.import

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+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://ddduid7esr36f"
+path="res://.godot/imported/icon.svg-56083ea2a1f1a4f1e49773bdc6d7826c.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
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+dest_files=["res://.godot/imported/icon.svg-56083ea2a1f1a4f1e49773bdc6d7826c.ctex"]
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+[params]
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+roughness/mode=0
+roughness/src_normal=""
+process/channel_remap/red=0
+process/channel_remap/green=1
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+process/size_limit=0
+detect_3d/compress_to=1
+svg/scale=1.0
+editor/scale_with_editor_scale=false
+editor/convert_colors_with_editor_theme=false

global.json

@@ -0,0 +1,7 @@
+{
+  "sdk": {
+    "version": "9.0.0",
+    "rollForward": "latestMajor",
+    "allowPrerelease": true
+  }
+}

project.godot

@@ -0,0 +1,68 @@
+; Engine configuration file.
+; It's best edited using the editor UI and not directly,
+; since the parameters that go here are not all obvious.
+;
+; Format:
+;   [section] ; section goes between []
+;   param=value ; assign values to parameters
+
+config_version=5
+
+[application]
+
+config/name="Slimepire"
+run/main_scene="uid://drxbsnqoi4wmw"
+config/features=PackedStringArray("4.6", "C#", "Forward Plus")
+config/icon="res://assets/icon.svg"
+
+[display]
+
+window/size/viewport_width=480
+window/size/viewport_height=320
+window/stretch/mode="canvas_items"
+window/stretch/aspect="expand"
+
+[dotnet]
+
+project/assembly_name="Slimepire"
+
+[editor]
+
+naming/scene_name_casing=1
+
+[file_customization]
+
+folder_colors={
+"res://src/Debug/": "yellow"
+}
+
+[input]
+
+cam_left={
+"deadzone": 0.2,
+"events": [Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":0,"physical_keycode":65,"key_label":0,"unicode":97,"location":0,"echo":false,"script":null)
+]
+}
+cam_right={
+"deadzone": 0.2,
+"events": [Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":0,"physical_keycode":68,"key_label":0,"unicode":100,"location":0,"echo":false,"script":null)
+]
+}
+cam_up={
+"deadzone": 0.2,
+"events": [Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":0,"physical_keycode":87,"key_label":0,"unicode":119,"location":0,"echo":false,"script":null)
+]
+}
+cam_down={
+"deadzone": 0.2,
+"events": [Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":0,"physical_keycode":83,"key_label":0,"unicode":115,"location":0,"echo":false,"script":null)
+]
+}
+
+[physics]
+
+3d/physics_engine="Jolt Physics"
+
+[rendering]
+
+rendering_device/driver.windows="d3d12"

src/Core/GameInputMap.cs

@@ -0,0 +1,6 @@
+using Godot;
+
+namespace Slimepire.Core;
+
+[InputMap]
+public partial class GameInputMap { }

src/Core/GameInputMap.cs.uid

@@ -0,0 +1 @@
+uid://cta7vf1tc8mrp

src/Core/MainGame.cs

@@ -0,0 +1,40 @@
+using Godot;
+using Slimepire.Levels;
+
+namespace Slimepire.Core;
+
+[SceneTree]
+public partial class MainGame : Node
+{
+    private BaseLevel? _currentLevel;
+
+    public override void _Ready()
+    {
+        GD.Print("MainGame ready");
+        CallDeferred(nameof(LoadLevel), "res://src/Levels/DemoLevel.tscn");
+    }
+
+    private async void LoadLevel(string level)
+    {
+        _currentLevel?.QueueFree();
+        _currentLevel = null;
+
+        await ToSignal(GetTree(), SceneTree.SignalName.ProcessFrame);
+
+        var newLevelPacked = ResourceLoader.Load<PackedScene>(level);
+        if (newLevelPacked == null)
+        {
+            GD.PushError($"Could not load packed scene {level}");
+            return;
+        }
+
+        _currentLevel = newLevelPacked.Instantiate<BaseLevel>();
+        if (_currentLevel == null)
+        {
+            GD.PushError($"Could not load level {level}");
+            return;
+        }
+
+        LevelRoot.AddChild(_currentLevel);
+    }
+}

src/Core/MainGame.cs.uid

@@ -0,0 +1 @@
+uid://b0u4agvdxawp

src/Core/MainGame.tscn

@@ -0,0 +1,62 @@
+[gd_scene format=3 uid="uid://drxbsnqoi4wmw"]
+
+[ext_resource type="Script" uid="uid://b0u4agvdxawp" path="res://src/Core/MainGame.cs" id="1_g6xmk"]
+
+[node name="Main Game" type="Node" unique_id=1541697061]
+process_mode = 3
+script = ExtResource("1_g6xmk")
+
+[node name="Systems" type="Node" parent="." unique_id=71014693]
+
+[node name="World" type="Node2D" parent="." unique_id=436280701]
+process_mode = 1
+
+[node name="LevelRoot" type="Node2D" parent="World" unique_id=1066129272]
+unique_name_in_owner = true
+
+[node name="EntityRoot" type="Node2D" parent="World" unique_id=706944944]
+unique_name_in_owner = true
+
+[node name="HudLayer" type="CanvasLayer" parent="." unique_id=407027346]
+process_mode = 1
+layer = 10
+
+[node name="HudRoot" type="Control" parent="HudLayer" unique_id=428309734]
+unique_name_in_owner = true
+layout_mode = 3
+anchors_preset = 0
+offset_right = 40.0
+offset_bottom = 40.0
+
+[node name="PauseLayer" type="CanvasLayer" parent="." unique_id=72018978]
+process_mode = 2
+layer = 20
+
+[node name="PauseRoot" type="Control" parent="PauseLayer" unique_id=171929713]
+unique_name_in_owner = true
+layout_mode = 3
+anchors_preset = 0
+offset_right = 40.0
+offset_bottom = 40.0
+
+[node name="TransitionLayer" type="CanvasLayer" parent="." unique_id=1737536414]
+process_mode = 3
+layer = 100
+
+[node name="TransitionRoot" type="Control" parent="TransitionLayer" unique_id=78768800]
+unique_name_in_owner = true
+layout_mode = 3
+anchors_preset = 0
+offset_right = 40.0
+offset_bottom = 40.0
+
+[node name="DebugLayer" type="CanvasLayer" parent="." unique_id=1550774256]
+process_mode = 3
+layer = 128
+
+[node name="DebugRoot" type="Control" parent="DebugLayer" unique_id=1697594173]
+unique_name_in_owner = true
+layout_mode = 3
+anchors_preset = 0
+offset_right = 40.0
+offset_bottom = 40.0

src/Gameplay/BuildGhost.cs

@@ -0,0 +1,39 @@
+using Godot;
+
+namespace Slimepire.Gameplay;
+
+[SceneTree]
+public partial class BuildGhost : Node2D
+{
+    public event Action<Vector2>? OnBuild;
+    private Tube? _tube;
+
+    public override void _Ready()
+    {
+        _tube = Instantiator.Instantiate<Tube>();
+        _tube.Position = Position / 2; // TODO WHYYY????
+        GetParent()?.AddChild(_tube);
+    }
+
+    public override void _Process(double delta)
+    {
+        GlobalPosition = GetGlobalMousePosition();
+        _tube?.SetTarget(GlobalPosition);
+    }
+
+    public override void _UnhandledInput(InputEvent @event)
+    {
+        using (@event)
+        {
+            if (@event is InputEventMouseButton { Pressed: false, ButtonIndex: MouseButton.Left })
+            {
+                OnBuild?.Invoke(GlobalPosition);
+
+                _tube?.QueueFree();
+                QueueFree();
+
+                GetViewport().SetInputAsHandled();
+            }
+        }
+    }
+}

src/Gameplay/BuildGhost.cs.uid

@@ -0,0 +1 @@
+uid://ck5yw760bu8sb

src/Gameplay/BuildGhost.tscn

@@ -0,0 +1,12 @@
+[gd_scene format=3 uid="uid://c3n70a52kk34f"]
+
+[ext_resource type="Script" uid="uid://ck5yw760bu8sb" path="res://src/Gameplay/BuildGhost.cs" id="1_ahcoi"]
+[ext_resource type="Texture2D" uid="uid://ddduid7esr36f" path="res://assets/icon.svg" id="2_uo42j"]
+
+[node name="BuildGhost" type="Node2D" unique_id=150653292]
+script = ExtResource("1_ahcoi")
+
+[node name="Sprite2D" type="Sprite2D" parent="." unique_id=218448453]
+modulate = Color(0.32941177, 0.29411766, 0.2901961, 0.5764706)
+scale = Vector2(0.3, 0.3)
+texture = ExtResource("2_uo42j")

src/Gameplay/Camera.cs

@@ -0,0 +1,27 @@
+using Godot;
+using Slimepire.Core;
+
+namespace Slimepire.Gameplay;
+
+public partial class Camera : Camera2D
+{
+    [Export]
+    public float CameraSpeed = 500;
+
+    private Vector2 _direction;
+
+    public override void _UnhandledKeyInput(InputEvent @event)
+    {
+        _direction = Input.GetVector(
+            GameInputMap.CamLeft,
+            GameInputMap.CamRight,
+            GameInputMap.CamUp,
+            GameInputMap.CamDown
+        );
+    }
+
+    public override void _Process(double delta)
+    {
+        Position += _direction * CameraSpeed * (float)delta;
+    }
+}

src/Gameplay/Camera.cs.uid

@@ -0,0 +1 @@
+uid://cdgi3y0sm3rt1

src/Gameplay/Nodules/Nodule.cs

@@ -0,0 +1,96 @@
+using Godot;
+
+namespace Slimepire.Gameplay.Nodules;
+
+[SceneTree]
+public partial class Nodule : Node2D
+{
+    [Export]
+    public bool IsRoot;
+
+    private BuildGhost? _ghost;
+
+    private bool _mouseInsideClickArea;
+    private bool _clickedInside;
+
+    public readonly List<Nodule> Connections = [];
+
+    // todo remove?
+    private bool _isExpanding;
+
+    public override void _Ready()
+    {
+        ClickArea.MouseEntered += ClickAreaOnMouseEntered;
+        ClickArea.MouseExited += ClickAreaOnMouseExited;
+
+        TubeConnectionArea.AreaEntered += TubeConnectionAreaOnAreaEntered;
+        TubeConnectionArea.AreaExited += TubeConnectionAreaOnAreaExited;
+
+        TubeManager.Instance.RegisterNodule(this);
+    }
+
+    private void TubeConnectionAreaOnAreaEntered(Area2D area)
+    {
+        if (area.GetParent() is Nodule nodule)
+        {
+            Connections.Add(nodule);
+            TubeManager.Instance.Update();
+        }
+    }
+
+    private void TubeConnectionAreaOnAreaExited(Area2D area)
+    {
+        if (area.GetParent() is Nodule nodule)
+        {
+            Connections.Remove(nodule);
+        }
+    }
+
+    public override void _UnhandledInput(InputEvent @event)
+    {
+        using (@event)
+        {
+            if (@event is InputEventMouseButton && @event.IsPressed() && _mouseInsideClickArea)
+            {
+                _clickedInside = true;
+                GetViewport().SetInputAsHandled();
+            }
+        }
+    }
+
+    private void ClickAreaOnMouseEntered()
+    {
+        _mouseInsideClickArea = true;
+    }
+
+    private void ClickAreaOnMouseExited()
+    {
+        _mouseInsideClickArea = false;
+
+        // ghost == null check probably unnecessary
+        if (_clickedInside && _ghost == null)
+        {
+            _clickedInside = false;
+            _isExpanding = true;
+
+            _ghost = Instantiator.Instantiate<BuildGhost>();
+            _ghost.Position = Position;
+            _ghost.OnBuild += OnBuildComplete;
+
+            GetParent()?.AddChild(_ghost);
+        }
+    }
+
+    private void OnBuildComplete(Vector2 pos)
+    {
+        _isExpanding = false;
+        _ghost = null;
+
+        var nodule = Instantiator.Instantiate<Nodule>();
+
+        nodule.Position = pos;
+        Connections.Add(nodule);
+        nodule.Connections.Add(this);
+        GetParent()?.AddChild(nodule);
+    }
+}

src/Gameplay/Nodules/Nodule.cs.uid

@@ -0,0 +1 @@
+uid://cmpl0if164dba

src/Gameplay/Nodules/Nodule.tscn

@@ -0,0 +1,64 @@
+[gd_scene format=3 uid="uid://cnl6t8o4mh0j3"]
+
+[ext_resource type="Script" uid="uid://cmpl0if164dba" path="res://src/Gameplay/Nodules/Nodule.cs" id="1_yembh"]
+[ext_resource type="Texture2D" uid="uid://cecg47efx7gw8" path="res://assets/Sprite-0001.png" id="2_7qt20"]
+
+[sub_resource type="CircleShape2D" id="CircleShape2D_7qt20"]
+radius = 15.0
+
+[sub_resource type="AtlasTexture" id="AtlasTexture_7qt20"]
+atlas = ExtResource("2_7qt20")
+region = Rect2(32, 0, 32, 32)
+
+[sub_resource type="AtlasTexture" id="AtlasTexture_x44k2"]
+atlas = ExtResource("2_7qt20")
+region = Rect2(0, 0, 32, 32)
+
+[sub_resource type="AtlasTexture" id="AtlasTexture_inlcu"]
+atlas = ExtResource("2_7qt20")
+region = Rect2(64, 0, 32, 32)
+
+[sub_resource type="SpriteFrames" id="SpriteFrames_xyjsl"]
+animations = [{
+"frames": [{
+"duration": 1.0,
+"texture": SubResource("AtlasTexture_7qt20")
+}, {
+"duration": 1.0,
+"texture": SubResource("AtlasTexture_x44k2")
+}, {
+"duration": 1.0,
+"texture": SubResource("AtlasTexture_inlcu")
+}],
+"loop": true,
+"name": &"default",
+"speed": 2.0
+}]
+
+[sub_resource type="CircleShape2D" id="CircleShape2D_x44k2"]
+radius = 96.38
+
+[node name="Nodule" type="Node2D" unique_id=1637542829]
+z_index = 1
+script = ExtResource("1_yembh")
+
+[node name="ClickArea" type="Area2D" parent="." unique_id=120357381]
+unique_name_in_owner = true
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="ClickArea" unique_id=2005066434]
+shape = SubResource("CircleShape2D_7qt20")
+
+[node name="Blob" type="AnimatedSprite2D" parent="." unique_id=190397869]
+modulate = Color(0.34855, 0.6165254, 0.5102762, 1)
+texture_filter = 1
+sprite_frames = SubResource("SpriteFrames_xyjsl")
+autoplay = "default"
+frame = 1
+frame_progress = 0.9100785
+
+[node name="TubeConnectionArea" type="Area2D" parent="." unique_id=339547035]
+unique_name_in_owner = true
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="TubeConnectionArea" unique_id=234655540]
+shape = SubResource("CircleShape2D_x44k2")
+debug_color = Color(0.38922516, 0.6054754, 0.25354394, 0.41960785)

src/Gameplay/Nodules/nodule.gd

@@ -0,0 +1,9 @@
+extends Node2D
+
+var clicked_inside := false
+
+func _unhandled_input(event: InputEvent) -> void:
+    if event is InputEventMouseButton:
+        if event.button_index == MOUSE_BUTTON_LEFT and event.pressed == true:
+            clicked_inside = true
+            get_viewport().set_input_as_handled()

src/Gameplay/Nodules/nodule.gd.uid

@@ -0,0 +1 @@
+uid://bvl0487nflq0q

src/Gameplay/Tube.cs

@@ -0,0 +1,47 @@
+using Godot;
+
+namespace Slimepire.Gameplay;
+
+[SceneTree]
+[Tool]
+public partial class Tube : Node2D
+{
+    [ExportToolButton("Generate Tube")]
+    private Callable GenerateTubeButton => Callable.From(GenerateTube);
+
+    private void GenerateTube()
+    {
+        float maxLength = 200;
+
+        // Generate 5 points from origin to Target
+        var diff = Target.Position - Position;
+
+        var points = new Vector2[5];
+        points[0] = Position;
+        for (var i = 1; i < 4; i++)
+        {
+            points[i] = points[i - 1] + diff / 5;
+        }
+        points[4] = Target.Position;
+
+        var thickness = (-1 / (maxLength / 2f)) * diff.Length() + 2f;
+
+        Line2D.Points = points;
+        Line2D.WidthCurve = new Curve();
+        Line2D.WidthCurve.AddPoint(new Vector2(0, 1));
+        Line2D.WidthCurve.AddPoint(new Vector2(0.5f, thickness));
+        Line2D.WidthCurve.AddPoint(new Vector2(1, 1));
+        Line2D.WidthCurve.Bake();
+    }
+
+    public void SetTarget(Vector2 newTarget)
+    {
+        Target.GlobalPosition = newTarget;
+        GenerateTube();
+    }
+
+    public override void _Ready()
+    {
+        Line2D.Points = [];
+    }
+}

src/Gameplay/Tube.cs.uid

@@ -0,0 +1 @@
+uid://dwunaa303epy6

src/Gameplay/Tube.tscn

@@ -0,0 +1,25 @@
+[gd_scene format=3 uid="uid://b3nn42ralc31r"]
+
+[ext_resource type="Script" uid="uid://dwunaa303epy6" path="res://src/Gameplay/Tube.cs" id="1_76hpl"]
+
+[sub_resource type="Curve" id="Curve_0lkqj"]
+_limits = [0.0, 2.0, 0.0, 1.0]
+_data = [Vector2(0, 1), 0.0, 0.0, 0, 0, Vector2(0.5, 1.4598354), 0.0, 0.0, 0, 0, Vector2(1, 1), 0.0, 0.0, 0, 0]
+point_count = 3
+
+[node name="Tube" type="Node2D" unique_id=226677696]
+script = ExtResource("1_76hpl")
+
+[node name="Line2D" type="Line2D" parent="." unique_id=1553055261]
+unique_name_in_owner = true
+z_as_relative = false
+width = 8.0
+width_curve = SubResource("Curve_0lkqj")
+default_color = Color(0.30588236, 0.4862745, 0.23921569, 0.5568628)
+joint_mode = 2
+begin_cap_mode = 2
+end_cap_mode = 2
+
+[node name="Target" type="Marker2D" parent="." unique_id=630564540]
+unique_name_in_owner = true
+position = Vector2(47, 66)

src/Gameplay/TubeManager.cs

@@ -0,0 +1,98 @@
+using Godot;
+using Slimepire.Gameplay.Nodules;
+
+namespace Slimepire.Gameplay;
+
+[Singleton]
+public partial class TubeManager
+{
+    private Nodule? _root;
+
+    private List<Nodule> _nodules = [];
+    private HashSet<NoduleConnection> _connections = [];
+    private Dictionary<NoduleConnection, Tube> _tubeConnections = new();
+    private List<Tube> _tubes = [];
+
+    public void RegisterNodule(Nodule nodule)
+    {
+        if (nodule.IsRoot)
+        {
+            _root = nodule;
+        }
+
+        _nodules.Add(nodule);
+
+        UpdateNoduleConnections();
+        UpdateTubes();
+    }
+
+    public void Update()
+    {
+        GD.Print("UPDATE");
+        UpdateNoduleConnections();
+        UpdateTubes();
+    }
+
+    private void UpdateNoduleConnections()
+    {
+        foreach (var n in _nodules)
+        {
+            foreach (var c in n.Connections)
+            {
+                _connections.Add(new NoduleConnection(n, c));
+            }
+        }
+
+        GD.Print($"Connections: {_connections.Count}");
+    }
+
+    private void UpdateTubes()
+    {
+        foreach (var c in _connections)
+        {
+            if (!_tubeConnections.ContainsKey(c))
+            {
+                GD.Print("Hello?");
+                var tube = Instantiator.Instantiate<Tube>();
+                _tubes.Add(tube);
+                _tubeConnections.Add(c, tube);
+                // tube.GlobalPosition = c.A.GlobalPosition;
+                c.A.AddChild(tube);
+
+                tube.SetTarget(c.B.Position);
+            }
+        }
+    }
+
+    private record NoduleConnection
+    {
+        public Nodule A { get; init; }
+        public Nodule B { get; init; }
+
+        public NoduleConnection(Nodule a, Nodule b)
+        {
+            if (a.GetHashCode() <= b.GetHashCode())
+            {
+                A = a;
+                B = b;
+            }
+            else
+            {
+                A = b;
+                B = a;
+            }
+        }
+
+        public virtual bool Equals(NoduleConnection? other)
+        {
+            if (other is null)
+                return false;
+            return ReferenceEquals(A, other.A) && ReferenceEquals(B, other.B);
+        }
+
+        public override int GetHashCode()
+        {
+            return HashCode.Combine(A, B);
+        }
+    }
+}

src/Gameplay/TubeManager.cs.uid

@@ -0,0 +1 @@
+uid://bxyquhfnvob64

src/Levels/BaseLevel.cs

@@ -0,0 +1,9 @@
+using Godot;
+
+namespace Slimepire.Levels;
+
+[GlobalClass]
+public abstract partial class BaseLevel : Node
+{
+    protected abstract Camera2D Camera { get; }
+}

src/Levels/BaseLevel.cs.uid

@@ -0,0 +1 @@
+uid://durlongh484is

src/Levels/DemoLevel.cs

@@ -0,0 +1,9 @@
+using Godot;
+
+namespace Slimepire.Levels;
+
+[SceneTree]
+public partial class DemoLevel : BaseLevel
+{
+    protected override Camera2D Camera => _.Camera;
+}

src/Levels/DemoLevel.cs.uid

@@ -0,0 +1 @@
+uid://c8l12dlpexosv

src/Levels/DemoLevel.tscn

@@ -0,0 +1,32 @@
+[gd_scene format=3 uid="uid://bqv3sg03tcv71"]
+
+[ext_resource type="Script" uid="uid://c8l12dlpexosv" path="res://src/Levels/DemoLevel.cs" id="1_l2cn0"]
+[ext_resource type="Script" uid="uid://cdgi3y0sm3rt1" path="res://src/Gameplay/Camera.cs" id="2_mxa1b"]
+[ext_resource type="PackedScene" uid="uid://cnl6t8o4mh0j3" path="res://src/Gameplay/Nodules/Nodule.tscn" id="3_qhkhc"]
+
+[sub_resource type="LabelSettings" id="LabelSettings_l2cn0"]
+font_size = 107
+
+[node name="DemoLevel" type="Node2D" unique_id=1583216522]
+script = ExtResource("1_l2cn0")
+
+[node name="Camera" type="Camera2D" parent="." unique_id=1348670701]
+script = ExtResource("2_mxa1b")
+
+[node name="Label" type="Label" parent="." unique_id=1452841224]
+anchors_preset = 8
+anchor_left = 0.5
+anchor_top = 0.5
+anchor_right = 0.5
+anchor_bottom = 0.5
+offset_left = -331.0
+offset_top = -221.0
+offset_right = 320.0
+offset_bottom = -74.0
+grow_horizontal = 2
+grow_vertical = 2
+text = "DEMO LEVEL"
+label_settings = SubResource("LabelSettings_l2cn0")
+
+[node name="Nodule" parent="." unique_id=1637542829 instance=ExtResource("3_qhkhc")]
+IsRoot = true