In-game config UI framework for Pit of Goblin mods.
POGConfig provides a shared MOD SETTINGS panel that any mod can register entries into. It handles rendering, persistence, scrolling, and input — mod authors only write entry declarations.
Install: Thunderstore Mod Manager / r2modman, or place POGConfig.dll in the game Mods folder. Mods that depend on POGConfig should load after it (MelonLoader respects alphabetical order by default).
POGConfig.PanelOpen lets other mods pause their hotkeys while the panel is open.Add to your .csproj:
<Reference Include="POGConfig">
<HintPath>..\..\Mods\POGConfig.dll</HintPath>
<Private>false</Private>
</Reference>
Add using POGMods.Config; to your plugin file.
Wrap registration in a [MethodImpl(MethodImplOptions.NoInlining)] helper so the IL2Cpp JIT only resolves POGConfig types when the method is actually called. This makes POGConfig an optional dependency — your mod loads cleanly even if POGConfig is absent.
using System.Collections.Generic;
using System.Runtime.CompilerServices;
using POGMods.Config;
public override void OnInitializeMelon()
{
try { TryRegisterConfig(); } catch { }
MelonLogger.Msg("My Mod loaded.");
}
[MethodImpl(MethodImplOptions.NoInlining)]
private static void TryRegisterConfig()
{
POGConfig.Register("My Mod", new List<ConfigEntry>
{
new ToggleEntry("Enable Feature", () => _enabled, v => _enabled = v),
new SliderEntry("Speed", () => _speed, v => _speed = v, 0f, 10f),
new KeyEntry("Hotkey", () => _key, v => _key = v),
});
}
Register also creates a MelonPreferences category named after your mod (spaces → underscores). Entries with a prefKey load and save automatically within that category.
POGConfig.PanelOpenpublic static bool PanelOpen { get; }
true while the MOD SETTINGS panel is visible. Check it before processing any in-game hotkey so keypresses inside the panel don't trigger game actions:
void Update()
{
if (!POGConfig.PanelOpen && Input.GetKeyDown(_toggleKey))
Toggle();
}
ToggleEntryRenders as a 40×24 yellow checkbox on the right side of the row.
new ToggleEntry(string label, Func<bool> get, Action<bool> set)
new ToggleEntry(string label, Func<bool> get, Action<bool> set, string prefKey)
set immediately when the user clicks it.OnUpdate polls get() every frame and silently syncs the visual state if the value changed externally.prefKey auto-saves to MelonPreferences on every change.new ToggleEntry("God Mode", () => _god, v => _god = v, "GodMode")
SliderEntryRow layout: 26 % label | 26 % value input | 48 % slider
Label and value columns clip with RectMask2D and animate a marquee on hover when the text overflows.
Full constructor (all parameters after max are optional):
new SliderEntry(
string label,
Func<float> get,
Action<float> set,
float min,
float max,
Func<float, string> fmt = null, // display formatter; default: v => v.ToString("F1")
string prefKey = null, // MelonPreferences key; null = no persistence
float originValue = 0f, // where the yellow fill bar anchors from
bool showFill = true, // false hides the fill bar entirely
bool wholeNumbers = false, // true snaps the handle to integers
int stepPointsCount = 0) // ≥2 draws evenly-spaced tick dots along the track
Value input field — click the yellow number box to type a value directly; Enter confirms, Escape cancels, clicking outside also confirms. The formatter suffix (e.g. "s", "%") is stripped on parse. A regex extracts the first numeric token, so "43s" and "43 seconds" both parse as 43. Enter confirms, Escape cancels. Values are clamped to [min, max].
Bidirectional fill — the yellow bar spans from originValue to the current value. If the current value is below origin it grows left; above origin it grows right. Set showFill: false to hide it entirely (recommended for wholeNumbers step sliders).
Step tick marks — stepPointsCount draws that many 4×4 px dots evenly from left to right edge of the track. They are purely visual; combine with wholeNumbers: true to make the handle snap between them.
Column widths — by default the row is split 35 % label / 15 % value box / 50 % slider. Override per-entry with object initializer syntax:
new SliderEntry("Speed", () => spd, v => spd = v, 0f, 10f)
{ LabelFraction = 0.45f, ValueFraction = 0.10f }
The slider takes whatever fraction remains after label + value + a 2 % gap.
Examples:
// Simple, 0–100 %, no persistence
new SliderEntry("Volume", () => vol, v => vol = v,
0f, 1f, v => $"{v * 100:F0}%")
// Bidirectional fill from 0, persisted
new SliderEntry("Temperature", () => temp, v => temp = v,
-50f, 50f, v => $"{v:F1}°C",
"Temp", originValue: 0f)
// Integer steps 0–8 with 9 tick dots, no fill, persisted
new SliderEntry("Points", () => (float)pts, v => pts = (int)v,
0f, 8f, v => $"{v:F0}",
"Points", originValue: 0f, showFill: false, wholeNumbers: true, stepPointsCount: 9)
// Numeric suffix stripped on parse ("43s" → 43)
new SliderEntry("Backup Interval", () => sec, v => sec = v,
5f, 180f, v => $"{v:F0}s", "BackupSec", originValue: 5f)
OptionsSliderEntryA slider that snaps to integer indices and shows a string label for each position. No fill bar. Suitable for named modes (difficulty, quality preset, etc.).
new OptionsSliderEntry(
string label,
Func<int> get,
Action<int> set,
string[] options,
string prefKey = null)
options is the full list of display strings, index 0 = leftmost.wholeNumbers is forced true and maxValue = options.Length - 1.OnUpdate polls get() and syncs the visual state if the index changed externally.prefKey saves/loads the integer index.new OptionsSliderEntry(
"Difficulty",
() => _difficulty,
v => _difficulty = v,
new[] { "Easy", "Normal", "Hard" },
"Difficulty")
KeyEntryRow layout: 42 % label | 28 % current key name | 90 px "Change" button
new KeyEntry(string label, Func<KeyCode> get, Action<KeyCode> set)
new KeyEntry(string label, Func<KeyCode> get, Action<KeyCode> set, string prefKey)
Input.GetKeyDown press is bound. Press Escape to cancel without changing the binding.KeyCode.None, displayed as — none —. Useful for making a hotkey optional.KeyEntry can be in listen mode at a time (KeyEntry.AnyWaiting flag).prefKey saves/loads the key name as a string via Enum.Parse<KeyCode>. KeyCode.None is stored as "None" and loaded correctly.AllowMouseButtons — by default Mouse0–Mouse6 are excluded from listen mode (prevents accidentally binding a mouse click). Opt in per-entry:
new KeyEntry("Attack", () => _key, v => _key = v) { AllowMouseButtons = true }
MelonPreferences categories are created as modName.Replace(" ", "_") automatically inside Register. You do not manage the category yourself. Each entry with a non-null prefKey:
| Entry type | Stored as | Loaded via |
|---|---|---|
ToggleEntry |
bool |
direct assignment |
SliderEntry |
float |
clamped to [min, max], rounded if wholeNumbers |
OptionsSliderEntry |
int |
clamped to [0, options.Length - 1] |
KeyEntry |
string (key name) |
Enum.TryParse<KeyCode> |
Saving happens on every value change (inside the wrapped set callback). The preferences file is written via MelonPreferences.Save().
ConfigBehaviour MonoBehaviour runs on a DontDestroyOnLoad runner object with HideFlags.HideAndDontSave. The UGUI Canvas lives on a separate root DontDestroyOnLoad object — these must not share the same parent to avoid the canvas being hidden by HideAndDontSave.BuildStaticUI is called from Start and retried from Update on failure. _uiReady = false is set on exception, allowing recovery the next frame.EnsureContent the first time the panel is opened. If POGConfig.RegistryVersion has changed since the last build (a mod registered after the first open), content is destroyed and rebuilt.RectTransformUtility.RectangleContainsScreenPoint(rt, point, null) — the null camera argument is required for ScreenSpaceOverlay canvas, because GetWorldCorners returns canvas-centered world coordinates while Input.mousePosition is bottom-left screen pixels.EventSystem pipeline (drag, click). POGConfig creates a POG_EventSystem with StandaloneInputModule if no EventSystem exists in the scene.ScrollRect). ScrollContent.anchoredPosition.y = _scrollOffset drives the position; RectMask2D on the viewport clips overflow. The thumb height is VIEWPORT_H² / totalContentH, clamped to a 30 px minimum.NetworkMenu.TogglePauseMenu is Harmony-patched: if the panel is open when the game tries to close the pause menu, the patch closes the panel instead and returns false to suppress the original call.Subclass ConfigEntry and override the internal methods:
public class MyEntry : ConfigEntry
{
public MyEntry(string label) : base(label) { }
// Build UGUI children inside the provided row GameObject.
// Row is 40 px tall, full viewport width.
// Use Clicks.Register(btnRt, callback) for clickable buttons.
internal override void BuildRowInto(GameObject row, TMP_FontAsset font) { ... }
// Called every frame while the panel is open.
internal override void OnUpdate() { ... }
// Called once during Register() to wire up MelonPreferences.
internal override void BindPrefs(MelonPreferences_Category cat) { ... }
}