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fabric-config-and-keybinds

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Add key bindings (KeyMappingHelper / KeyBindingHelper) and a configuration system to a Fabric mod - a dependency-free JSON config with Gson, or Cloth Config / YACL screens - plus optional Mod Menu integration. Use when a mod needs a toggle key, user settings, a config screen, or a "Configure" button in Mod Menu, or when key presses fire twice / not at all.

skills/fabric-config-and-keybinds/SKILL.md

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# Fabric config and key bindings

Key bindings and config screens are **client-side**: put them in `src/client` and register
them from the `ClientModInitializer`. The config *data* class can live in `src/main` if the
server also reads it.

## Step 0 - Names for your version

| | 26.3+ (SDL input) | 26.1 - 26.2 | 1.21.x Mojang mappings | Yarn (<= 1.21.11) |
|---|---|---|---|---|
| Helper | `KeyMappingHelper.registerKeyMapping` (`...client.keymapping.v1`) | same as 26.3 | `KeyBindingHelper.registerKeyBinding` (`...client.keybinding.v1`) | `KeyBindingHelper.registerKeyBinding` |
| Vanilla class | `KeyMapping` | `KeyMapping` | `KeyMapping` | `KeyBinding` |
| "was pressed" | `consumeClick()` | `consumeClick()` | `consumeClick()` | `wasPressed()` |
| Input type | `InputConstants.Type.KEYBOARD` | `InputConstants.Type.KEYSYM` | `InputConstants.Type.KEYSYM` | `InputUtil.Type.KEYSYM` |