[
    {
        "role": "user",
        "content": "I%27m%20using%20pygame.joystick.Joystick()%20to%20get%20a%20joy%20object%20and%20then%20joy.rumble()%20-%20what%20are%20its%20parameters%3F"
    },
    {
        "role": "assistant",
        "content": "Here\u2019s what `pygame.joystick.Joystick.rumble()` does, and what its parameters are, based on the current Pygame 2 documentation:\n\n---\n\n## `Joystick.rumble(low_frequency, high_frequency, duration) -> bool`\n\nStarts a rumble (vibration) effect on a joystick/gamepad. Returns `True` if the rumble was successfully started (see limitations below), or `False` otherwise. ([pygame.org](https://www.pygame.org/docs/ref/joystick.html?utm_source=openai))\n\n### Parameters\n\n| Name | Type | Purpose |\n|---|---|---|\n| **low_frequency** | float (0.0 to 1.0) | The strength/intensity of the low-frequency motor. Lower values \u2192 less rumble; 1.0 \u2192 full strength. ([pygame.org](https://www.pygame.org/docs/ref/joystick.html?utm_source=openai)) |\n| **high_frequency** | float (0.0 to 1.0) | The strength/intensity of the high-frequency motor, if the controller has one. Same scale. ([pygame.org](https://www.pygame.org/docs/ref/joystick.html?utm_source=openai)) |\n| **duration** | integer (milliseconds) | How long to play the rumble effect, in ms. If you set duration to **0**, the rumble keeps going until you either call `stop_rumble()` or another rumble effect starts. ([pygame.org](https://www.pygame.org/docs/ref/joystick.html?utm_source=openai)) |\n\n---\n\n### Return Value\n\n- Returns `True` if:\n  - the joystick supports rumble, and  \n  - Pygame (with its SDL backend) is new enough\u2014specifically, version **SDL 2.0.9+** ([pygame.org](https://www.pygame.org/docs/ref/joystick.html?utm_source=openai))  \n- Returns `False` otherwise (e.g. no rumble support, outdated SDL, etc.). ([pygame.org](https://www.pygame.org/docs/ref/joystick.html?utm_source=openai))\n\n---\n\n### `stop_rumble()` Method\n\nThere\u2019s also a `Joystick.stop_rumble()` method which immediately stops any rumble effect playing. Useful if you want to cut off the vibration early. ([pygame.org](https://www.pygame.org/docs/ref/joystick.html?utm_source=openai))\n\n---\n\n### Important Notes / Gotchas\n\n- **Version matters**: Rumble support was added in Pygame **2.0.2**. If your version is older, these methods/parameters won\u2019t exist. ([pygame.org](https://www.pygame.org/docs/ref/joystick.html?utm_source=openai))  \n- **Hardware & driver support**: Not all controllers support rumble, or they may require certain drivers or special setup (e.g. DualShock 4 via Bluetooth may need environment tweaks). Even when the method returns `True`, the vibration might be weak or not noticeable. ([stackoverflow.com](https://stackoverflow.com/questions/76071997/pygame-rumble-function-not-working-via-bluetooth?utm_source=openai))  \n\n---\n\nIf you want, I can also show you how to check if a joystick supports rumble (before calling `rumble()`), or demonstrate a sample usage snippet."
    }
]