// Simulate keyboard key input in PlayMode via Input System. Use when you need to: (1) Press game control keys like WASD, Space, or Shift during PlayMode, (2) Hold keys down for continuous movement or actions, (3) Combine multiple held keys for complex input like Shift+W for sprint.
Execute C# code dynamically in Unity Editor. Use when you need to: (1) Wire prefab/material references and AddComponent operations, (2) Edit SerializedObject properties and reference wiring, (3) Perform scene/hierarchy edits and batch operations, (4) PlayMode automation (click buttons, raycast, invoke methods), (5) PlayMode UI controls (InputField, Slider, Toggle, Dropdown), (6) PlayMode inspection (scene info, reflection, physics state). NOT for file I/O or script authoring.
Execute Unity Editor menu commands programmatically. Use when you need to: (1) Trigger menu commands like save, build, or refresh, (2) Automate editor actions via menu paths, (3) Run custom menu items defined in project scripts.
Record keyboard and mouse input during PlayMode into a JSON file. Use when you need to: (1) Capture human gameplay input for later replay, (2) Record input sequences for E2E testing, (3) Save input for bug reproduction.
Replay recorded input during PlayMode with frame-precise injection. Use when you need to: (1) Reproduce recorded gameplay exactly, (2) Run E2E tests from recorded input, (3) Generate demo videos with consistent input.
Capture screenshots of Unity Editor windows as PNG files. Use when you need to: (1) Screenshot Game View, Scene View, Console, Inspector, or other windows, (2) Capture current visual state for debugging or documentation, (3) Save editor window appearance as image files.
Simulate mouse input in PlayMode via Input System. Injects button clicks, mouse delta, and scroll wheel directly into Mouse.current. Use when you need to: (1) Click in games that read Mouse.current.leftButton.wasPressedThisFrame, (2) Right-click for actions like block placement, (3) Inject mouse delta for FPS camera control, (4) Inject scroll wheel for hotbar switching or zoom. For UI elements with IPointerClickHandler, use simulate-mouse-ui instead.
| name | uloop-simulate-keyboard |
| description | Simulate keyboard key input in PlayMode via Input System. Use when you need to: (1) Press game control keys like WASD, Space, or Shift during PlayMode, (2) Hold keys down for continuous movement or actions, (3) Combine multiple held keys for complex input like Shift+W for sprint. |
| context | fork |
Simulate keyboard input on Unity PlayMode: $ARGUMENTS
uloop control-play-mode --action Play if not)uloop simulate-keyboard commanduloop screenshot --capture-mode renderinguloop simulate-keyboard --action <action> --key <key> [options]
| Parameter | Type | Default | Description |
|---|---|---|---|
--action | enum | Press | Press, KeyDown, KeyUp |
--key | string | (required) | Key name matching Input System Key enum (e.g. W, Space, LeftShift, A, Enter). Case-insensitive. |
--duration | number | 0 | Hold duration in seconds for Press action (0 = one-shot tap). Ignored by KeyDown/KeyUp. |
| Action | Behavior | Use Case |
|---|---|---|
Press | KeyDown → wait → KeyUp | One-shot tap (jump, use item) |
KeyDown | KeyDown only (held until KeyUp) | Start continuous movement, hold sprint |
KeyUp | KeyUp only (release held key) | Stop movement, release sprint |
KeyDown fails if the key is already heldKeyUp fails if the key is not currently held| Option | Description |
|---|---|
--project-path <path> | Target a specific Unity project (mutually exclusive with --port) |
-p, --port <port> | Specify Unity TCP port directly (mutually exclusive with --project-path) |
# One-shot key press (tap W once)
uloop simulate-keyboard --action Press --key W
# Jump (tap Space)
uloop simulate-keyboard --action Press --key Space
# Hold W for 2 seconds (move forward)
uloop simulate-keyboard --action Press --key W --duration 2.0
# Sprint forward (hold Shift + W, then release)
uloop simulate-keyboard --action KeyDown --key LeftShift
uloop simulate-keyboard --action KeyDown --key W
uloop screenshot --capture-mode rendering
uloop simulate-keyboard --action KeyUp --key W
uloop simulate-keyboard --action KeyUp --key LeftShift
com.unity.inputsystem) must be installedKeyboard.current[Key.W].isPressed), not legacy Input.GetKey()