bevyengine/bevy · error · AxisSettingsError

invalid parameter values livezone_lowerbound {} deadzone_low

Error message

invalid parameter values livezone_lowerbound {} deadzone_lowerbound {}, expected livezone_lowerbound <= deadzone_lowerbound

What it means

AxisSettingsError::LiveZoneLowerBoundGreaterThanDeadZoneLowerBound: the axis settings are individually in range but inconsistent — livezone_lowerbound must be less than or equal to deadzone_lowerbound for the zones to nest correctly.

Source

Thrown at crates/bevy_input/src/gamepad.rs:301

}

/// Errors that occur when setting axis settings for gamepad input.
#[derive(Error, Debug, PartialEq)]
pub enum AxisSettingsError {
    /// The given parameter `livezone_lowerbound` was not in range -1.0..=0.0.
    #[error("invalid livezone_lowerbound {0}, expected value [-1.0..=0.0]")]
    LiveZoneLowerBoundOutOfRange(f32),
    /// The given parameter `deadzone_lowerbound` was not in range -1.0..=0.0.
    #[error("invalid deadzone_lowerbound {0}, expected value [-1.0..=0.0]")]
    DeadZoneLowerBoundOutOfRange(f32),
    /// The given parameter `deadzone_lowerbound` was not in range -1.0..=0.0.
    #[error("invalid deadzone_upperbound {0}, expected value [0.0..=1.0]")]
    DeadZoneUpperBoundOutOfRange(f32),
    /// The given parameter `deadzone_lowerbound` was not in range -1.0..=0.0.
    #[error("invalid livezone_upperbound {0}, expected value [0.0..=1.0]")]
    LiveZoneUpperBoundOutOfRange(f32),
    /// Parameter `livezone_lowerbound` was not less than or equal to parameter `deadzone_lowerbound`.
    #[error("invalid parameter values livezone_lowerbound {} deadzone_lowerbound {}, expected livezone_lowerbound <= deadzone_lowerbound", livezone_lowerbound, deadzone_lowerbound)]
    LiveZoneLowerBoundGreaterThanDeadZoneLowerBound {
        /// The value of the `livezone_lowerbound` parameter.
        livezone_lowerbound: f32,
        /// The value of the `deadzone_lowerbound` parameter.
        deadzone_lowerbound: f32,
    },
    ///  Parameter `deadzone_upperbound` was not less than or equal to parameter `livezone_upperbound`.
    #[error("invalid parameter values livezone_upperbound {} deadzone_upperbound {}, expected deadzone_upperbound <= livezone_upperbound", livezone_upperbound, deadzone_upperbound)]
    DeadZoneUpperBoundGreaterThanLiveZoneUpperBound {
        /// The value of the `livezone_upperbound` parameter.
        livezone_upperbound: f32,
        /// The value of the `deadzone_upperbound` parameter.
        deadzone_upperbound: f32,
    },
    /// The given parameter was not in range 0.0..=2.0.
    #[error("invalid threshold {0}, expected 0.0 <= threshold <= 2.0")]
    Threshold(f32),
}

View on GitHub (pinned to 396ca72708)

Solutions

  1. Reorder the bounds so livezone_lowerbound <= deadzone_lowerbound
  2. Clamp livezone_lowerbound to deadzone_lowerbound before constructing settings
Defensive patterns

Strategy: validation

When it happens

Trigger: Thrown at crates/bevy_input/src/gamepad.rs:301 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of bevyengine/bevy@396ca72708 (2026-08-20). Data as JSON: /api/errors/a9f3069ddf1d34dc. Report an issue: GitHub.