use crate::{Axis, Input}; use bevy_ecs::event::{Event, EventReader, EventWriter}; use bevy_ecs::{ change_detection::DetectChangesMut, system::{Res, ResMut, Resource}, }; use bevy_reflect::{std_traits::ReflectDefault, Reflect}; use bevy_utils::Duration; use bevy_utils::{tracing::info, HashMap}; use thiserror::Error; /// 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), } /// Errors that occur when setting button settings for gamepad input. #[derive(Error, Debug, PartialEq)] pub enum ButtonSettingsError { /// The given parameter was not in range 0.0..=1.0. #[error("invalid release_threshold {0}, expected value [0.0..=1.0]")] ReleaseThresholdOutOfRange(f32), /// The given parameter was not in range 0.0..=1.0. #[error("invalid press_threshold {0}, expected [0.0..=1.0]")] PressThresholdOutOfRange(f32), /// Parameter `release_threshold` was not less than or equal to `press_threshold`. #[error("invalid parameter values release_threshold {} press_threshold {}, expected release_threshold <= press_threshold", .release_threshold, .press_threshold)] ReleaseThresholdGreaterThanPressThreshold { /// The value of the `press_threshold` parameter. press_threshold: f32, /// The value of the `release_threshold` parameter. release_threshold: f32, }, } #[cfg(feature = "serialize")] use bevy_reflect::{ReflectDeserialize, ReflectSerialize}; /// A gamepad with an associated `ID`. /// /// ## Usage /// /// The primary way to access the individual connected gamepads is done through the [`Gamepads`] /// `bevy` resource. It is also used inside of [`GamepadConnectionEvent`]s to correspond a gamepad /// with a connection event. /// /// ## Note /// /// The `ID` of a gamepad is fixed until the gamepad disconnects or the app is restarted. #[derive(Debug, Copy, Clone, PartialEq, Eq, Hash, Reflect)] #[reflect(Debug, Hash, PartialEq)] #[cfg_attr( feature = "serialize", derive(serde::Serialize, serde::Deserialize), reflect(Serialize, Deserialize) )] pub struct Gamepad { /// The `ID` of the gamepad. pub id: usize, } impl Gamepad { /// Creates a new [`Gamepad`]. pub fn new(id: usize) -> Self { Self { id } } } /// Metadata associated with a [`Gamepad`]. #[derive(Debug, Clone, PartialEq, Eq, Reflect)] #[reflect(Debug, PartialEq)] #[cfg_attr( feature = "serialize", derive(serde::Serialize, serde::Deserialize), reflect(Serialize, Deserialize) )] pub struct GamepadInfo { /// The name of the gamepad. /// /// This name is generally defined by the OS. /// /// For example on Windows the name may be "HID-compliant game controller". pub name: String, } /// A collection of connected [`Gamepad`]s. /// /// ## Usage /// /// It is stored in a `bevy` resource which tracks all of the currently connected [`Gamepad`]s. /// /// ## Updating /// /// The [`Gamepad`]s are registered and deregistered in the [`gamepad_connection_system`] /// whenever a [`GamepadConnectionEvent`] is received. #[derive(Resource, Default, Debug)] pub struct Gamepads { /// The collection of the connected [`Gamepad`]s. gamepads: HashMap, } impl Gamepads { /// Returns `true` if the `gamepad` is connected. pub fn contains(&self, gamepad: Gamepad) -> bool { self.gamepads.contains_key(&gamepad) } /// Returns an iterator over registered [`Gamepad`]s in an arbitrary order. pub fn iter(&self) -> impl Iterator + '_ { self.gamepads.keys().copied() } /// The name of the gamepad if this one is connected. pub fn name(&self, gamepad: Gamepad) -> Option<&str> { self.gamepads.get(&gamepad).map(|g| g.name.as_str()) } /// Registers the `gamepad`, marking it as connected. fn register(&mut self, gamepad: Gamepad, info: GamepadInfo) { self.gamepads.insert(gamepad, info); } /// Deregisters the `gamepad`, marking it as disconnected. fn deregister(&mut self, gamepad: Gamepad) { self.gamepads.remove(&gamepad); } } /// A type of a [`GamepadButton`]. /// /// ## Usage /// /// This is used to determine which button has changed its value when receiving a /// [`GamepadButtonChangedEvent`]. It is also used in the [`GamepadButton`] /// which in turn is used to create the [`Input`] or /// [`Axis`] `bevy` resources. #[derive(Debug, Copy, Clone, PartialEq, Eq, Hash, Reflect)] #[reflect(Debug, Hash, PartialEq)] #[cfg_attr( feature = "serialize", derive(serde::Serialize, serde::Deserialize), reflect(Serialize, Deserialize) )] pub enum GamepadButtonType { /// The bottom action button of the action pad (i.e. PS: Cross, Xbox: A). South, /// The right action button of the action pad (i.e. PS: Circle, Xbox: B). East, /// The upper action button of the action pad (i.e. PS: Triangle, Xbox: Y). North, /// The left action button of the action pad (i.e. PS: Square, Xbox: X). West, /// The C button. C, /// The Z button. Z, /// The first left trigger. LeftTrigger, /// The second left trigger. LeftTrigger2, /// The first right trigger. RightTrigger, /// The second right trigger. RightTrigger2, /// The select button. Select, /// The start button. Start, /// The mode button. Mode, /// The left thumb stick button. LeftThumb, /// The right thumb stick button. RightThumb, /// The up button of the D-Pad. DPadUp, /// The down button of the D-Pad. DPadDown, /// The left button of the D-Pad. DPadLeft, /// The right button of the D-Pad. DPadRight, /// Miscellaneous buttons, considered non-standard (i.e. Extra buttons on a flight stick that do not have a gamepad equivalent). Other(u8), } /// A button of a [`Gamepad`]. /// /// ## Usage /// /// It is used as the generic `T` value of an [`Input`] and [`Axis`] to create `bevy` resources. These /// resources store the data of the buttons of a gamepad and can be accessed inside of a system. /// /// ## Updating /// /// The gamepad button resources are updated inside of the [`gamepad_button_event_system`]. #[derive(Debug, Copy, Clone, PartialEq, Eq, Hash, Reflect)] #[reflect(Debug, Hash, PartialEq)] #[cfg_attr( feature = "serialize", derive(serde::Serialize, serde::Deserialize), reflect(Serialize, Deserialize) )] pub struct GamepadButton { /// The gamepad on which the button is located on. pub gamepad: Gamepad, /// The type of the button. pub button_type: GamepadButtonType, } impl GamepadButton { /// Creates a new [`GamepadButton`]. /// /// # Examples /// /// ``` /// # use bevy_input::gamepad::{GamepadButton, GamepadButtonType, Gamepad}; /// # /// let gamepad_button = GamepadButton::new( /// Gamepad::new(1), /// GamepadButtonType::South, /// ); /// ``` pub fn new(gamepad: Gamepad, button_type: GamepadButtonType) -> Self { Self { gamepad, button_type, } } } /// A type of a [`GamepadAxis`]. /// /// ## Usage /// /// This is used to determine which axis has changed its value when receiving a /// [`GamepadAxisChangedEvent`]. It is also used in the [`GamepadAxis`] /// which in turn is used to create the [`Axis`] `bevy` resource. #[derive(Debug, Copy, Clone, PartialEq, Eq, Hash, Reflect)] #[reflect(Debug, Hash, PartialEq)] #[cfg_attr( feature = "serialize", derive(serde::Serialize, serde::Deserialize), reflect(Serialize, Deserialize) )] pub enum GamepadAxisType { /// The horizontal value of the left stick. LeftStickX, /// The vertical value of the left stick. LeftStickY, /// The value of the left `Z` button. LeftZ, /// The horizontal value of the right stick. RightStickX, /// The vertical value of the right stick. RightStickY, /// The value of the right `Z` button. RightZ, /// Non-standard support for other axis types (i.e. HOTAS sliders, potentiometers, etc). Other(u8), } /// An axis of a [`Gamepad`]. /// /// ## Usage /// /// It is used as the generic `T` value of an [`Axis`] to create `bevy` resources. These /// resources store the data of the axes of a gamepad and can be accessed inside of a system. /// /// ## Updating /// /// The gamepad axes resources are updated inside of the [`gamepad_axis_event_system`]. #[derive(Debug, Copy, Clone, PartialEq, Eq, Hash, Reflect)] #[reflect(Debug, Hash, PartialEq)] #[cfg_attr( feature = "serialize", derive(serde::Serialize, serde::Deserialize), reflect(Serialize, Deserialize) )] pub struct GamepadAxis { /// The gamepad on which the axis is located on. pub gamepad: Gamepad, /// The type of the axis. pub axis_type: GamepadAxisType, } impl GamepadAxis { /// Creates a new [`GamepadAxis`]. /// /// # Examples /// /// ``` /// # use bevy_input::gamepad::{GamepadAxis, GamepadAxisType, Gamepad}; /// # /// let gamepad_axis = GamepadAxis::new( /// Gamepad::new(1), /// GamepadAxisType::LeftStickX, /// ); /// ``` pub fn new(gamepad: Gamepad, axis_type: GamepadAxisType) -> Self { Self { gamepad, axis_type } } } /// Settings for all [`Gamepad`]s. /// /// ## Usage /// /// It is used to create a `bevy` resource that stores the settings of every [`GamepadButton`] and /// [`GamepadAxis`]. If no user defined [`ButtonSettings`], [`AxisSettings`], or [`ButtonAxisSettings`] /// are defined, the default settings of each are used as a fallback accordingly. /// /// ## Note /// /// The [`GamepadSettings`] are used inside of `bevy_gilrs` to determine when raw gamepad events from `gilrs`, /// should register as a [`GamepadEvent`]. Events that don't meet the change thresholds defined in [`GamepadSettings`] /// will not register. To modify these settings, mutate the corresponding resource. #[derive(Resource, Default, Debug, Reflect)] #[reflect(Debug, Default)] pub struct GamepadSettings { /// The default button settings. pub default_button_settings: ButtonSettings, /// The default axis settings. pub default_axis_settings: AxisSettings, /// The default button axis settings. pub default_button_axis_settings: ButtonAxisSettings, /// The user defined button settings. pub button_settings: HashMap, /// The user defined axis settings. pub axis_settings: HashMap, /// The user defined button axis settings. pub button_axis_settings: HashMap, } impl GamepadSettings { /// Returns the [`ButtonSettings`] of the `button`. /// /// If no user defined [`ButtonSettings`] are specified the default [`ButtonSettings`] get returned. /// /// # Examples /// /// ``` /// # use bevy_input::gamepad::{GamepadSettings, GamepadButton, Gamepad, GamepadButtonType}; /// # /// # let settings = GamepadSettings::default(); /// let button = GamepadButton::new(Gamepad::new(1), GamepadButtonType::South); /// let button_settings = settings.get_button_settings(button); /// ``` pub fn get_button_settings(&self, button: GamepadButton) -> &ButtonSettings { self.button_settings .get(&button) .unwrap_or(&self.default_button_settings) } /// Returns the [`AxisSettings`] of the `axis`. /// /// If no user defined [`AxisSettings`] are specified the default [`AxisSettings`] get returned. /// /// # Examples /// /// ``` /// # use bevy_input::gamepad::{GamepadSettings, GamepadAxis, Gamepad, GamepadAxisType}; /// # /// # let settings = GamepadSettings::default(); /// let axis = GamepadAxis::new(Gamepad::new(1), GamepadAxisType::LeftStickX); /// let axis_settings = settings.get_axis_settings(axis); /// ``` pub fn get_axis_settings(&self, axis: GamepadAxis) -> &AxisSettings { self.axis_settings .get(&axis) .unwrap_or(&self.default_axis_settings) } /// Returns the [`ButtonAxisSettings`] of the `button`. /// /// If no user defined [`ButtonAxisSettings`] are specified the default [`ButtonAxisSettings`] get returned. /// /// # Examples /// /// ``` /// # use bevy_input::gamepad::{GamepadSettings, GamepadButton, Gamepad, GamepadButtonType}; /// # /// # let settings = GamepadSettings::default(); /// let button = GamepadButton::new(Gamepad::new(1), GamepadButtonType::South); /// let button_axis_settings = settings.get_button_axis_settings(button); /// ``` pub fn get_button_axis_settings(&self, button: GamepadButton) -> &ButtonAxisSettings { self.button_axis_settings .get(&button) .unwrap_or(&self.default_button_axis_settings) } } /// Manages settings for gamepad buttons. /// /// It is used inside of [`GamepadSettings`] to define the threshold for a gamepad button /// to be considered pressed or released. A button is considered pressed if the `press_threshold` /// value is surpassed and released if the `release_threshold` value is undercut. /// /// Allowed values: `0.0 <= ``release_threshold`` <= ``press_threshold`` <= 1.0` #[derive(Debug, Clone, Reflect)] #[reflect(Debug, Default)] pub struct ButtonSettings { press_threshold: f32, release_threshold: f32, } impl Default for ButtonSettings { fn default() -> Self { ButtonSettings { press_threshold: 0.75, release_threshold: 0.65, } } } impl ButtonSettings { /// Creates a new [`ButtonSettings`] instance. /// /// # Parameters /// /// + `press_threshold` is the button input value above which the button is considered pressed. /// + `release_threshold` is the button input value below which the button is considered released. /// /// Restrictions: /// + `0.0 <= ``release_threshold`` <= ``press_threshold`` <= 1.0` /// /// # Errors /// /// If the restrictions are not met, returns one of /// `GamepadSettingsError::ButtonReleaseThresholdOutOfRange`, /// `GamepadSettingsError::ButtonPressThresholdOutOfRange`, or /// `GamepadSettingsError::ButtonReleaseThresholdGreaterThanPressThreshold`. pub fn new( press_threshold: f32, release_threshold: f32, ) -> Result { if !(0.0..=1.0).contains(&release_threshold) { Err(ButtonSettingsError::ReleaseThresholdOutOfRange( release_threshold, )) } else if !(0.0..=1.0).contains(&press_threshold) { Err(ButtonSettingsError::PressThresholdOutOfRange( press_threshold, )) } else if release_threshold > press_threshold { Err( ButtonSettingsError::ReleaseThresholdGreaterThanPressThreshold { press_threshold, release_threshold, }, ) } else { Ok(ButtonSettings { press_threshold, release_threshold, }) } } /// Returns `true` if the button is pressed. /// /// A button is considered pressed if the `value` passed is greater than or equal to the press threshold. fn is_pressed(&self, value: f32) -> bool { value >= self.press_threshold } /// Returns `true` if the button is released. /// /// A button is considered released if the `value` passed is lower than or equal to the release threshold. fn is_released(&self, value: f32) -> bool { value <= self.release_threshold } /// Get the button input threshold above which the button is considered pressed. pub fn press_threshold(&self) -> f32 { self.press_threshold } /// Try to set the button input threshold above which the button is considered pressed. /// /// # Errors /// /// If the value passed is outside the range [release threshold..=1.0], returns either /// `GamepadSettingsError::ButtonPressThresholdOutOfRange` or /// `GamepadSettingsError::ButtonReleaseThresholdGreaterThanPressThreshold`. pub fn try_set_press_threshold(&mut self, value: f32) -> Result<(), ButtonSettingsError> { if (self.release_threshold..=1.0).contains(&value) { self.press_threshold = value; Ok(()) } else if !(0.0..1.0).contains(&value) { Err(ButtonSettingsError::PressThresholdOutOfRange(value)) } else { Err( ButtonSettingsError::ReleaseThresholdGreaterThanPressThreshold { press_threshold: value, release_threshold: self.release_threshold, }, ) } } /// Try to set the button input threshold above which the button is considered pressed. /// If the value passed is outside the range [release threshold..=1.0], the value will not be changed. /// /// Returns the new value of the press threshold. pub fn set_press_threshold(&mut self, value: f32) -> f32 { self.try_set_press_threshold(value).ok(); self.press_threshold } /// Get the button input threshold below which the button is considered released. pub fn release_threshold(&self) -> f32 { self.release_threshold } /// Try to set the button input threshold below which the button is considered released. /// /// # Errors /// /// If the value passed is outside the range [0.0..=press threshold], returns /// `ButtonSettingsError::ReleaseThresholdOutOfRange` or /// `ButtonSettingsError::ReleaseThresholdGreaterThanPressThreshold`. pub fn try_set_release_threshold(&mut self, value: f32) -> Result<(), ButtonSettingsError> { if (0.0..=self.press_threshold).contains(&value) { self.release_threshold = value; Ok(()) } else if !(0.0..1.0).contains(&value) { Err(ButtonSettingsError::ReleaseThresholdOutOfRange(value)) } else { Err( ButtonSettingsError::ReleaseThresholdGreaterThanPressThreshold { press_threshold: self.press_threshold, release_threshold: value, }, ) } } /// Try to set the button input threshold below which the button is considered released. If the /// value passed is outside the range [0.0..=press threshold], the value will not be changed. /// /// Returns the new value of the release threshold. pub fn set_release_threshold(&mut self, value: f32) -> f32 { self.try_set_release_threshold(value).ok(); self.release_threshold } } /// Settings for a [`GamepadAxis`]. /// /// It is used inside of the [`GamepadSettings`] to define the sensitivity range and /// threshold for an axis. /// Values that are higher than `livezone_upperbound` will be rounded up to 1.0. /// Values that are lower than `livezone_lowerbound` will be rounded down to -1.0. /// Values that are in-between `deadzone_lowerbound` and `deadzone_upperbound` will be rounded /// to 0.0. /// Otherwise, values will not be rounded. /// /// The valid range is `[-1.0, 1.0]`. #[derive(Debug, Clone, Reflect, PartialEq)] #[reflect(Debug, Default)] pub struct AxisSettings { /// Values that are higher than `livezone_upperbound` will be rounded up to 1.0. livezone_upperbound: f32, /// Positive values that are less than `deadzone_upperbound` will be rounded down to 0.0. deadzone_upperbound: f32, /// Negative values that are greater than `deadzone_lowerbound` will be rounded up to 0.0. deadzone_lowerbound: f32, /// Values that are lower than `livezone_lowerbound` will be rounded down to -1.0. livezone_lowerbound: f32, /// `threshold` defines the minimum difference between old and new values to apply the changes. threshold: f32, } impl Default for AxisSettings { fn default() -> Self { AxisSettings { livezone_upperbound: 0.95, deadzone_upperbound: 0.05, deadzone_lowerbound: -0.05, livezone_lowerbound: -0.95, threshold: 0.01, } } } impl AxisSettings { /// Creates a new [`AxisSettings`] instance. /// /// # Arguments /// /// + `livezone_lowerbound` - the value below which inputs will be rounded down to -1.0. /// + `deadzone_lowerbound` - the value above which negative inputs will be rounded up to 0.0. /// + `deadzone_upperbound` - the value below which positive inputs will be rounded down to 0.0. /// + `livezone_upperbound` - the value above which inputs will be rounded up to 1.0. /// + `threshold` - the minimum value by which input must change before the change is registered. /// /// Restrictions: /// /// + `-1.0 <= livezone_lowerbound <= deadzone_lowerbound <= 0.0` /// + `0.0 <= deadzone_upperbound <= livezone_upperbound <= 1.0` /// + `0.0 <= threshold <= 2.0` /// /// # Errors /// /// Returns an [`AxisSettingsError`] if any restrictions on the zone values are not met. /// If the zone restrictions are met, but the `threshold` value restrictions are not met, /// returns [`AxisSettingsError::Threshold`]. pub fn new( livezone_lowerbound: f32, deadzone_lowerbound: f32, deadzone_upperbound: f32, livezone_upperbound: f32, threshold: f32, ) -> Result { if !(-1.0..=0.0).contains(&livezone_lowerbound) { Err(AxisSettingsError::LiveZoneLowerBoundOutOfRange( livezone_lowerbound, )) } else if !(-1.0..=0.0).contains(&deadzone_lowerbound) { Err(AxisSettingsError::DeadZoneLowerBoundOutOfRange( deadzone_lowerbound, )) } else if !(0.0..=1.0).contains(&deadzone_upperbound) { Err(AxisSettingsError::DeadZoneUpperBoundOutOfRange( deadzone_upperbound, )) } else if !(0.0..=1.0).contains(&livezone_upperbound) { Err(AxisSettingsError::LiveZoneUpperBoundOutOfRange( livezone_upperbound, )) } else if livezone_lowerbound > deadzone_lowerbound { Err( AxisSettingsError::LiveZoneLowerBoundGreaterThanDeadZoneLowerBound { livezone_lowerbound, deadzone_lowerbound, }, ) } else if deadzone_upperbound > livezone_upperbound { Err( AxisSettingsError::DeadZoneUpperBoundGreaterThanLiveZoneUpperBound { livezone_upperbound, deadzone_upperbound, }, ) } else if !(0.0..=2.0).contains(&threshold) { Err(AxisSettingsError::Threshold(threshold)) } else { Ok(Self { livezone_lowerbound, deadzone_lowerbound, deadzone_upperbound, livezone_upperbound, threshold, }) } } /// Get the value above which inputs will be rounded up to 1.0. pub fn livezone_upperbound(&self) -> f32 { self.livezone_upperbound } /// Try to set the value above which inputs will be rounded up to 1.0. /// /// # Errors /// /// If the value passed is less than the dead zone upper bound, /// returns `AxisSettingsError::DeadZoneUpperBoundGreaterThanLiveZoneUpperBound`. /// If the value passed is not in range [0.0..=1.0], returns `AxisSettingsError::LiveZoneUpperBoundOutOfRange`. pub fn try_set_livezone_upperbound(&mut self, value: f32) -> Result<(), AxisSettingsError> { if !(0.0..=1.0).contains(&value) { Err(AxisSettingsError::LiveZoneUpperBoundOutOfRange(value)) } else if value < self.deadzone_upperbound { Err( AxisSettingsError::DeadZoneUpperBoundGreaterThanLiveZoneUpperBound { livezone_upperbound: value, deadzone_upperbound: self.deadzone_upperbound, }, ) } else { self.livezone_upperbound = value; Ok(()) } } /// Try to set the value above which inputs will be rounded up to 1.0. /// If the value passed is negative or less than `deadzone_upperbound`, /// the value will not be changed. /// /// Returns the new value of `livezone_upperbound`. pub fn set_livezone_upperbound(&mut self, value: f32) -> f32 { self.try_set_livezone_upperbound(value).ok(); self.livezone_upperbound } /// Get the value below which positive inputs will be rounded down to 0.0. pub fn deadzone_upperbound(&self) -> f32 { self.deadzone_upperbound } /// Try to set the value below which positive inputs will be rounded down to 0.0. /// /// # Errors /// /// If the value passed is greater than the live zone upper bound, /// returns `AxisSettingsError::DeadZoneUpperBoundGreaterThanLiveZoneUpperBound`. /// If the value passed is not in range [0.0..=1.0], returns `AxisSettingsError::DeadZoneUpperBoundOutOfRange`. pub fn try_set_deadzone_upperbound(&mut self, value: f32) -> Result<(), AxisSettingsError> { if !(0.0..=1.0).contains(&value) { Err(AxisSettingsError::DeadZoneUpperBoundOutOfRange(value)) } else if self.livezone_upperbound < value { Err( AxisSettingsError::DeadZoneUpperBoundGreaterThanLiveZoneUpperBound { livezone_upperbound: self.livezone_upperbound, deadzone_upperbound: value, }, ) } else { self.deadzone_upperbound = value; Ok(()) } } /// Try to set the value below which positive inputs will be rounded down to 0.0. /// If the value passed is negative or greater than `livezone_upperbound`, /// the value will not be changed. /// /// Returns the new value of `deadzone_upperbound`. pub fn set_deadzone_upperbound(&mut self, value: f32) -> f32 { self.try_set_deadzone_upperbound(value).ok(); self.deadzone_upperbound } /// Get the value below which negative inputs will be rounded down to -1.0. pub fn livezone_lowerbound(&self) -> f32 { self.livezone_lowerbound } /// Try to set the value below which negative inputs will be rounded down to -1.0. /// /// # Errors /// /// If the value passed is less than the dead zone lower bound, /// returns `AxisSettingsError::LiveZoneLowerBoundGreaterThanDeadZoneLowerBound`. /// If the value passed is not in range [-1.0..=0.0], returns `AxisSettingsError::LiveZoneLowerBoundOutOfRange`. pub fn try_set_livezone_lowerbound(&mut self, value: f32) -> Result<(), AxisSettingsError> { if !(-1.0..=0.0).contains(&value) { Err(AxisSettingsError::LiveZoneLowerBoundOutOfRange(value)) } else if value > self.deadzone_lowerbound { Err( AxisSettingsError::LiveZoneLowerBoundGreaterThanDeadZoneLowerBound { livezone_lowerbound: value, deadzone_lowerbound: self.deadzone_lowerbound, }, ) } else { self.livezone_lowerbound = value; Ok(()) } } /// Try to set the value below which negative inputs will be rounded down to -1.0. /// If the value passed is positive or greater than `deadzone_lowerbound`, /// the value will not be changed. /// /// Returns the new value of `livezone_lowerbound`. pub fn set_livezone_lowerbound(&mut self, value: f32) -> f32 { self.try_set_livezone_lowerbound(value).ok(); self.livezone_lowerbound } /// Get the value above which inputs will be rounded up to 0.0. pub fn deadzone_lowerbound(&self) -> f32 { self.deadzone_lowerbound } /// Try to set the value above which inputs will be rounded up to 0.0. /// /// # Errors /// /// If the value passed is less than the live zone lower bound, /// returns `AxisSettingsError::LiveZoneLowerBoundGreaterThanDeadZoneLowerBound`. /// If the value passed is not in range [-1.0..=0.0], returns `AxisSettingsError::DeadZoneLowerBoundOutOfRange`. pub fn try_set_deadzone_lowerbound(&mut self, value: f32) -> Result<(), AxisSettingsError> { if !(-1.0..=0.0).contains(&value) { Err(AxisSettingsError::DeadZoneLowerBoundOutOfRange(value)) } else if self.livezone_lowerbound > value { Err( AxisSettingsError::LiveZoneLowerBoundGreaterThanDeadZoneLowerBound { livezone_lowerbound: self.livezone_lowerbound, deadzone_lowerbound: value, }, ) } else { self.deadzone_lowerbound = value; Ok(()) } } /// Try to set the value above which inputs will be rounded up to 0.0. /// If the value passed is less than -1.0 or less than `livezone_lowerbound`, /// the value will not be changed. /// /// Returns the new value of `deadzone_lowerbound`. pub fn set_deadzone_lowerbound(&mut self, value: f32) -> f32 { self.try_set_deadzone_lowerbound(value).ok(); self.deadzone_lowerbound } /// Get the minimum value by which input must change before the change is registered. pub fn threshold(&self) -> f32 { self.threshold } /// Try to set the minimum value by which input must change before the change is registered. /// /// # Errors /// /// If the value passed is not within [0.0..=2.0], returns `GamepadSettingsError::AxisThreshold`. pub fn try_set_threshold(&mut self, value: f32) -> Result<(), AxisSettingsError> { if !(0.0..=2.0).contains(&value) { Err(AxisSettingsError::Threshold(value)) } else { self.threshold = value; Ok(()) } } /// Try to set the minimum value by which input must change before the changes will be applied. /// If the value passed is not within [0.0..=2.0], the value will not be changed. /// /// Returns the new value of threshold. pub fn set_threshold(&mut self, value: f32) -> f32 { self.try_set_threshold(value).ok(); self.threshold } /// Clamps the `raw_value` according to the `AxisSettings`. pub fn clamp(&self, new_value: f32) -> f32 { if self.deadzone_lowerbound <= new_value && new_value <= self.deadzone_upperbound { 0.0 } else if new_value >= self.livezone_upperbound { 1.0 } else if new_value <= self.livezone_lowerbound { -1.0 } else { new_value } } /// Determines whether the change from `old_value` to `new_value` should /// be registered as a change, according to the [`AxisSettings`]. fn should_register_change(&self, new_value: f32, old_value: Option) -> bool { if old_value.is_none() { return true; } f32::abs(new_value - old_value.unwrap()) > self.threshold } /// Filters the `new_value` based on the `old_value`, according to the [`AxisSettings`]. /// /// Returns the clamped `new_value` if the change exceeds the settings threshold, /// and `None` otherwise. pub fn filter(&self, new_value: f32, old_value: Option) -> Option { let new_value = self.clamp(new_value); if self.should_register_change(new_value, old_value) { return Some(new_value); } None } } /// Settings for a [`GamepadButton`]. /// /// It is used inside of the [`GamepadSettings`] to define the sensitivity range and /// threshold for a button axis. /// /// ## Logic /// /// - Values that are higher than or equal to `high` will be rounded to 1.0. /// - Values that are lower than or equal to `low` will be rounded to 0.0. /// - Otherwise, values will not be rounded. /// /// The valid range is from 0.0 to 1.0, inclusive. /// /// ## Updating /// /// The current value of a button is received through the [`GamepadButtonChangedEvent`]. #[derive(Debug, Clone, Reflect)] #[reflect(Debug, Default)] pub struct ButtonAxisSettings { /// The high value at which to apply rounding. pub high: f32, /// The low value at which to apply rounding. pub low: f32, /// The threshold to apply rounding. pub threshold: f32, } impl Default for ButtonAxisSettings { fn default() -> Self { ButtonAxisSettings { high: 0.95, low: 0.05, threshold: 0.01, } } } impl ButtonAxisSettings { /// Clamps the `raw_value` according to the specified settings. /// /// If the `raw_value` is: /// - lower than or equal to `low` it will be rounded to 0.0. /// - higher than or equal to `high` it will be rounded to 1.0. /// - Otherwise it will not be rounded. fn clamp(&self, raw_value: f32) -> f32 { if raw_value <= self.low { return 0.0; } if raw_value >= self.high { return 1.0; } raw_value } /// Determines whether the change from an `old_value` to a `new_value` should /// be registered as a change event, according to the specified settings. fn should_register_change(&self, new_value: f32, old_value: Option) -> bool { if old_value.is_none() { return true; } f32::abs(new_value - old_value.unwrap()) > self.threshold } /// Filters the `new_value` based on the `old_value`, according to the [`ButtonAxisSettings`]. /// /// Returns the clamped `new_value`, according to the [`ButtonAxisSettings`], if the change /// exceeds the settings threshold, and `None` otherwise. pub fn filter(&self, new_value: f32, old_value: Option) -> Option { let new_value = self.clamp(new_value); if self.should_register_change(new_value, old_value) { return Some(new_value); } None } } /// Handles [`GamepadConnectionEvent`]s and updates gamepad resources. /// /// Updates the [`Gamepads`] resource and resets and/or initializes /// the [`Axis`] and [`Input`] resources. /// /// ## Note /// /// Whenever a [`Gamepad`] connects or disconnects, an information gets printed to the console using the [`info!`] macro. pub fn gamepad_connection_system( mut gamepads: ResMut, mut connection_events: EventReader, mut axis: ResMut>, mut button_axis: ResMut>, mut button_input: ResMut>, ) { for connection_event in connection_events.iter() { let gamepad = connection_event.gamepad; if let GamepadConnection::Connected(info) = &connection_event.connection { gamepads.register(gamepad, info.clone()); info!("{:?} Connected", gamepad); for button_type in &ALL_BUTTON_TYPES { let gamepad_button = GamepadButton::new(gamepad, *button_type); button_input.reset(gamepad_button); button_axis.set(gamepad_button, 0.0); } for axis_type in &ALL_AXIS_TYPES { axis.set(GamepadAxis::new(gamepad, *axis_type), 0.0); } } else { gamepads.deregister(gamepad); info!("{:?} Disconnected", gamepad); for button_type in &ALL_BUTTON_TYPES { let gamepad_button = GamepadButton::new(gamepad, *button_type); button_input.reset(gamepad_button); button_axis.remove(gamepad_button); } for axis_type in &ALL_AXIS_TYPES { axis.remove(GamepadAxis::new(gamepad, *axis_type)); } } } } /// The connection status of a gamepad. #[derive(Debug, Clone, PartialEq, Reflect)] #[reflect(Debug, PartialEq)] #[cfg_attr( feature = "serialize", derive(serde::Serialize, serde::Deserialize), reflect(Serialize, Deserialize) )] pub enum GamepadConnection { /// The gamepad is connected. Connected(GamepadInfo), /// The gamepad is disconnected. Disconnected, } /// A Gamepad connection event. Created when a connection to a gamepad /// is established and when a gamepad is disconnected. #[derive(Event, Debug, Clone, PartialEq, Reflect)] #[reflect(Debug, PartialEq)] #[cfg_attr( feature = "serialize", derive(serde::Serialize, serde::Deserialize), reflect(Serialize, Deserialize) )] pub struct GamepadConnectionEvent { /// The gamepad whose connection status changed. pub gamepad: Gamepad, /// The change in the gamepads connection. pub connection: GamepadConnection, } impl GamepadConnectionEvent { /// Creates a [`GamepadConnectionEvent`]. pub fn new(gamepad: Gamepad, connection: GamepadConnection) -> Self { Self { gamepad, connection, } } /// Is the gamepad connected? pub fn connected(&self) -> bool { matches!(self.connection, GamepadConnection::Connected(_)) } /// Is the gamepad disconnected? pub fn disconnected(&self) -> bool { !self.connected() } } /// Gamepad event for when the "value" on the axis changes /// by an amount larger than the threshold defined in [`GamepadSettings`]. #[derive(Event, Debug, Clone, PartialEq, Reflect)] #[reflect(Debug, PartialEq)] #[cfg_attr( feature = "serialize", derive(serde::Serialize, serde::Deserialize), reflect(Serialize, Deserialize) )] pub struct GamepadAxisChangedEvent { /// The gamepad on which the axis is triggered. pub gamepad: Gamepad, /// The type of the triggered axis. pub axis_type: GamepadAxisType, /// The value of the axis. pub value: f32, } impl GamepadAxisChangedEvent { /// Creates a [`GamepadAxisChangedEvent`]. pub fn new(gamepad: Gamepad, axis_type: GamepadAxisType, value: f32) -> Self { Self { gamepad, axis_type, value, } } } /// Gamepad event for when the "value" (amount of pressure) on the button /// changes by an amount larger than the threshold defined in [`GamepadSettings`]. #[derive(Event, Debug, Clone, PartialEq, Reflect)] #[reflect(Debug, PartialEq)] #[cfg_attr( feature = "serialize", derive(serde::Serialize, serde::Deserialize), reflect(Serialize, Deserialize) )] pub struct GamepadButtonChangedEvent { /// The gamepad on which the button is triggered. pub gamepad: Gamepad, /// The type of the triggered button. pub button_type: GamepadButtonType, /// The value of the button. pub value: f32, } impl GamepadButtonChangedEvent { /// Creates a [`GamepadButtonChangedEvent`]. pub fn new(gamepad: Gamepad, button_type: GamepadButtonType, value: f32) -> Self { Self { gamepad, button_type, value, } } } /// Uses [`GamepadAxisChangedEvent`]s to update the relevant [`Input`] and [`Axis`] values. pub fn gamepad_axis_event_system( mut gamepad_axis: ResMut>, mut axis_events: EventReader, ) { for axis_event in axis_events.iter() { let axis = GamepadAxis::new(axis_event.gamepad, axis_event.axis_type); gamepad_axis.set(axis, axis_event.value); } } /// Uses [`GamepadButtonChangedEvent`]s to update the relevant [`Input`] and [`Axis`] values. pub fn gamepad_button_event_system( mut button_events: EventReader, mut button_input: ResMut>, settings: Res, ) { for button_event in button_events.iter() { let button = GamepadButton::new(button_event.gamepad, button_event.button_type); let value = button_event.value; let button_property = settings.get_button_settings(button); if button_property.is_released(value) { // We don't have to check if the button was previously pressed // because that check is performed within Input::release() button_input.release(button); } else if button_property.is_pressed(value) { button_input.press(button); }; } } /// A gamepad event. /// /// This event type is used over the [`GamepadConnectionEvent`], /// [`GamepadButtonChangedEvent`] and [`GamepadAxisChangedEvent`] when /// the in-frame relative ordering of events is important. #[derive(Event, Debug, Clone, PartialEq, Reflect)] #[reflect(Debug, PartialEq)] #[cfg_attr( feature = "serialize", derive(serde::Serialize, serde::Deserialize), reflect(Serialize, Deserialize) )] pub enum GamepadEvent { /// A gamepad has been connected or disconnected. Connection(GamepadConnectionEvent), /// A button of the gamepad has been triggered. Button(GamepadButtonChangedEvent), /// An axis of the gamepad has been triggered. Axis(GamepadAxisChangedEvent), } impl From for GamepadEvent { fn from(value: GamepadConnectionEvent) -> Self { Self::Connection(value) } } impl From for GamepadEvent { fn from(value: GamepadButtonChangedEvent) -> Self { Self::Button(value) } } impl From for GamepadEvent { fn from(value: GamepadAxisChangedEvent) -> Self { Self::Axis(value) } } /// Splits the [`GamepadEvent`] event stream into it's component events. pub fn gamepad_event_system( mut gamepad_events: EventReader, mut connection_events: EventWriter, mut button_events: EventWriter, mut axis_events: EventWriter, mut button_input: ResMut>, ) { button_input.bypass_change_detection().clear(); for gamepad_event in gamepad_events.iter() { match gamepad_event { GamepadEvent::Connection(connection_event) => { connection_events.send(connection_event.clone()); } GamepadEvent::Button(button_event) => button_events.send(button_event.clone()), GamepadEvent::Axis(axis_event) => axis_events.send(axis_event.clone()), } } } /// An array of every [`GamepadButtonType`] variant. const ALL_BUTTON_TYPES: [GamepadButtonType; 19] = [ GamepadButtonType::South, GamepadButtonType::East, GamepadButtonType::North, GamepadButtonType::West, GamepadButtonType::C, GamepadButtonType::Z, GamepadButtonType::LeftTrigger, GamepadButtonType::LeftTrigger2, GamepadButtonType::RightTrigger, GamepadButtonType::RightTrigger2, GamepadButtonType::Select, GamepadButtonType::Start, GamepadButtonType::Mode, GamepadButtonType::LeftThumb, GamepadButtonType::RightThumb, GamepadButtonType::DPadUp, GamepadButtonType::DPadDown, GamepadButtonType::DPadLeft, GamepadButtonType::DPadRight, ]; /// An array of every [`GamepadAxisType`] variant. const ALL_AXIS_TYPES: [GamepadAxisType; 6] = [ GamepadAxisType::LeftStickX, GamepadAxisType::LeftStickY, GamepadAxisType::LeftZ, GamepadAxisType::RightStickX, GamepadAxisType::RightStickY, GamepadAxisType::RightZ, ]; /// The intensity at which a gamepad's force-feedback motors may rumble. #[derive(Clone, Copy, Debug, PartialEq)] pub struct GamepadRumbleIntensity { /// The rumble intensity of the strong gamepad motor. /// /// Ranges from `0.0` to `1.0`. /// /// By convention, this is usually a low-frequency motor on the left-hand /// side of the gamepad, though it may vary across platforms and hardware. pub strong_motor: f32, /// The rumble intensity of the weak gamepad motor. /// /// Ranges from `0.0` to `1.0`. /// /// By convention, this is usually a high-frequency motor on the right-hand /// side of the gamepad, though it may vary across platforms and hardware. pub weak_motor: f32, } impl GamepadRumbleIntensity { /// Rumble both gamepad motors at maximum intensity. pub const MAX: Self = GamepadRumbleIntensity { strong_motor: 1.0, weak_motor: 1.0, }; /// Rumble the weak motor at maximum intensity. pub const WEAK_MAX: Self = GamepadRumbleIntensity { strong_motor: 0.0, weak_motor: 1.0, }; /// Rumble the strong motor at maximum intensity. pub const STRONG_MAX: Self = GamepadRumbleIntensity { strong_motor: 1.0, weak_motor: 0.0, }; /// Creates a new rumble intensity with weak motor intensity set to the given value. /// /// Clamped within the `0.0` to `1.0` range. pub const fn weak_motor(intensity: f32) -> Self { Self { weak_motor: intensity, strong_motor: 0.0, } } /// Creates a new rumble intensity with strong motor intensity set to the given value. /// /// Clamped within the `0.0` to `1.0` range. pub const fn strong_motor(intensity: f32) -> Self { Self { strong_motor: intensity, weak_motor: 0.0, } } } /// An event that controls force-feedback rumbling of a [`Gamepad`]. /// /// # Notes /// /// Does nothing if the gamepad or platform does not support rumble. /// /// # Example /// /// ``` /// # use bevy_input::gamepad::{Gamepad, Gamepads, GamepadRumbleRequest, GamepadRumbleIntensity}; /// # use bevy_ecs::prelude::{EventWriter, Res}; /// # use bevy_utils::Duration; /// fn rumble_gamepad_system( /// mut rumble_requests: EventWriter, /// gamepads: Res /// ) { /// for gamepad in gamepads.iter() { /// rumble_requests.send(GamepadRumbleRequest::Add { /// gamepad, /// intensity: GamepadRumbleIntensity::MAX, /// duration: Duration::from_secs_f32(0.5), /// }); /// } /// } /// ``` #[doc(alias = "haptic feedback")] #[doc(alias = "force feedback")] #[doc(alias = "vibration")] #[doc(alias = "vibrate")] #[derive(Event, Clone)] pub enum GamepadRumbleRequest { /// Add a rumble to the given gamepad. /// /// Simultaneous rumble effects add up to the sum of their strengths. /// /// Consequently, if two rumbles at half intensity are added at the same /// time, their intensities will be added up, and the controller will rumble /// at full intensity until one of the rumbles finishes, then the rumble /// will continue at the intensity of the remaining event. /// /// To replace an existing rumble, send a [`GamepadRumbleRequest::Stop`] event first. Add { /// How long the gamepad should rumble. duration: Duration, /// How intense the rumble should be. intensity: GamepadRumbleIntensity, /// The gamepad to rumble. gamepad: Gamepad, }, /// Stop all running rumbles on the given [`Gamepad`]. Stop { /// The gamepad to stop rumble. gamepad: Gamepad, }, } impl GamepadRumbleRequest { /// Get the [`Gamepad`] associated with this request. pub fn gamepad(&self) -> Gamepad { match self { Self::Add { gamepad, .. } | Self::Stop { gamepad } => *gamepad, } } } #[cfg(test)] mod tests { use crate::gamepad::{AxisSettingsError, ButtonSettingsError}; use super::{AxisSettings, ButtonAxisSettings, ButtonSettings}; fn test_button_axis_settings_filter( settings: ButtonAxisSettings, new_value: f32, old_value: Option, expected: Option, ) { let actual = settings.filter(new_value, old_value); assert_eq!( expected, actual, "Testing filtering for {settings:?} with new_value = {new_value:?}, old_value = {old_value:?}", ); } #[test] fn test_button_axis_settings_default_filter() { let cases = [ (1.0, None, Some(1.0)), (0.99, None, Some(1.0)), (0.96, None, Some(1.0)), (0.95, None, Some(1.0)), (0.9499, None, Some(0.9499)), (0.84, None, Some(0.84)), (0.43, None, Some(0.43)), (0.05001, None, Some(0.05001)), (0.05, None, Some(0.0)), (0.04, None, Some(0.0)), (0.01, None, Some(0.0)), (0.0, None, Some(0.0)), ]; for (new_value, old_value, expected) in cases { let settings = ButtonAxisSettings::default(); test_button_axis_settings_filter(settings, new_value, old_value, expected); } } #[test] fn test_button_axis_settings_default_filter_with_old_value() { let cases = [ (0.43, Some(0.44001), Some(0.43)), (0.43, Some(0.44), None), (0.43, Some(0.43), None), (0.43, Some(0.41999), Some(0.43)), (0.43, Some(0.17), Some(0.43)), (0.43, Some(0.84), Some(0.43)), (0.05, Some(0.055), Some(0.0)), (0.95, Some(0.945), Some(1.0)), ]; for (new_value, old_value, expected) in cases { let settings = ButtonAxisSettings::default(); test_button_axis_settings_filter(settings, new_value, old_value, expected); } } fn test_axis_settings_filter( settings: AxisSettings, new_value: f32, old_value: Option, expected: Option, ) { let actual = settings.filter(new_value, old_value); assert_eq!( expected, actual, "Testing filtering for {settings:?} with new_value = {new_value:?}, old_value = {old_value:?}", ); } #[test] fn test_axis_settings_default_filter() { let cases = [ (1.0, Some(1.0)), (0.99, Some(1.0)), (0.96, Some(1.0)), (0.95, Some(1.0)), (0.9499, Some(0.9499)), (0.84, Some(0.84)), (0.43, Some(0.43)), (0.05001, Some(0.05001)), (0.05, Some(0.0)), (0.04, Some(0.0)), (0.01, Some(0.0)), (0.0, Some(0.0)), (-1.0, Some(-1.0)), (-0.99, Some(-1.0)), (-0.96, Some(-1.0)), (-0.95, Some(-1.0)), (-0.9499, Some(-0.9499)), (-0.84, Some(-0.84)), (-0.43, Some(-0.43)), (-0.05001, Some(-0.05001)), (-0.05, Some(0.0)), (-0.04, Some(0.0)), (-0.01, Some(0.0)), ]; for (new_value, expected) in cases { let settings = AxisSettings::default(); test_axis_settings_filter(settings, new_value, None, expected); } } #[test] fn test_axis_settings_default_filter_with_old_values() { let cases = [ (0.43, Some(0.44001), Some(0.43)), (0.43, Some(0.44), None), (0.43, Some(0.43), None), (0.43, Some(0.41999), Some(0.43)), (0.43, Some(0.17), Some(0.43)), (0.43, Some(0.84), Some(0.43)), (0.05, Some(0.055), Some(0.0)), (0.95, Some(0.945), Some(1.0)), (-0.43, Some(-0.44001), Some(-0.43)), (-0.43, Some(-0.44), None), (-0.43, Some(-0.43), None), (-0.43, Some(-0.41999), Some(-0.43)), (-0.43, Some(-0.17), Some(-0.43)), (-0.43, Some(-0.84), Some(-0.43)), (-0.05, Some(-0.055), Some(0.0)), (-0.95, Some(-0.945), Some(-1.0)), ]; for (new_value, old_value, expected) in cases { let settings = AxisSettings::default(); test_axis_settings_filter(settings, new_value, old_value, expected); } } #[test] fn test_button_settings_default_is_pressed() { let cases = [ (1.0, true), (0.95, true), (0.9, true), (0.8, true), (0.75, true), (0.7, false), (0.65, false), (0.5, false), (0.0, false), ]; for (value, expected) in cases { let settings = ButtonSettings::default(); let actual = settings.is_pressed(value); assert_eq!( expected, actual, "testing ButtonSettings::is_pressed() for value: {value}", ); } } #[test] fn test_button_settings_default_is_released() { let cases = [ (1.0, false), (0.95, false), (0.9, false), (0.8, false), (0.75, false), (0.7, false), (0.65, true), (0.5, true), (0.0, true), ]; for (value, expected) in cases { let settings = ButtonSettings::default(); let actual = settings.is_released(value); assert_eq!( expected, actual, "testing ButtonSettings::is_released() for value: {value}", ); } } #[test] fn test_new_button_settings_given_valid_parameters() { let cases = [ (1.0, 0.0), (1.0, 1.0), (1.0, 0.9), (0.9, 0.9), (0.9, 0.0), (0.0, 0.0), ]; for (press_threshold, release_threshold) in cases { let bs = ButtonSettings::new(press_threshold, release_threshold); match bs { Ok(button_settings) => { assert_eq!(button_settings.press_threshold, press_threshold); assert_eq!(button_settings.release_threshold, release_threshold); } Err(_) => { panic!( "ButtonSettings::new({press_threshold}, {release_threshold}) should be valid" ); } } } } #[test] fn test_new_button_settings_given_invalid_parameters() { let cases = [ (1.1, 0.0), (1.1, 1.0), (1.0, 1.1), (-1.0, 0.9), (-1.0, 0.0), (-1.0, -0.4), (0.9, 1.0), (0.0, 0.1), ]; for (press_threshold, release_threshold) in cases { let bs = ButtonSettings::new(press_threshold, release_threshold); match bs { Ok(_) => { panic!( "ButtonSettings::new({press_threshold}, {release_threshold}) should be invalid" ); } Err(err_code) => match err_code { ButtonSettingsError::PressThresholdOutOfRange(_press_threshold) => {} ButtonSettingsError::ReleaseThresholdGreaterThanPressThreshold { press_threshold: _press_threshold, release_threshold: _release_threshold, } => {} ButtonSettingsError::ReleaseThresholdOutOfRange(_release_threshold) => {} }, } } } #[test] fn test_try_out_of_range_axis_settings() { let mut axis_settings = AxisSettings::default(); assert_eq!( AxisSettings::new(-0.95, -0.05, 0.05, 0.95, 0.001), Ok(AxisSettings { livezone_lowerbound: -0.95, deadzone_lowerbound: -0.05, deadzone_upperbound: 0.05, livezone_upperbound: 0.95, threshold: 0.001, }) ); assert_eq!( Err(AxisSettingsError::LiveZoneLowerBoundOutOfRange(-2.0)), axis_settings.try_set_livezone_lowerbound(-2.0) ); assert_eq!( Err(AxisSettingsError::LiveZoneLowerBoundOutOfRange(0.1)), axis_settings.try_set_livezone_lowerbound(0.1) ); assert_eq!( Err(AxisSettingsError::DeadZoneLowerBoundOutOfRange(-2.0)), axis_settings.try_set_deadzone_lowerbound(-2.0) ); assert_eq!( Err(AxisSettingsError::DeadZoneLowerBoundOutOfRange(0.1)), axis_settings.try_set_deadzone_lowerbound(0.1) ); assert_eq!( Err(AxisSettingsError::DeadZoneUpperBoundOutOfRange(-0.1)), axis_settings.try_set_deadzone_upperbound(-0.1) ); assert_eq!( Err(AxisSettingsError::DeadZoneUpperBoundOutOfRange(1.1)), axis_settings.try_set_deadzone_upperbound(1.1) ); assert_eq!( Err(AxisSettingsError::LiveZoneUpperBoundOutOfRange(-0.1)), axis_settings.try_set_livezone_upperbound(-0.1) ); assert_eq!( Err(AxisSettingsError::LiveZoneUpperBoundOutOfRange(1.1)), axis_settings.try_set_livezone_upperbound(1.1) ); axis_settings.set_livezone_lowerbound(-0.7); axis_settings.set_deadzone_lowerbound(-0.3); assert_eq!( Err( AxisSettingsError::LiveZoneLowerBoundGreaterThanDeadZoneLowerBound { livezone_lowerbound: -0.1, deadzone_lowerbound: -0.3, } ), axis_settings.try_set_livezone_lowerbound(-0.1) ); assert_eq!( Err( AxisSettingsError::LiveZoneLowerBoundGreaterThanDeadZoneLowerBound { livezone_lowerbound: -0.7, deadzone_lowerbound: -0.9 } ), axis_settings.try_set_deadzone_lowerbound(-0.9) ); axis_settings.set_deadzone_upperbound(0.3); axis_settings.set_livezone_upperbound(0.7); assert_eq!( Err( AxisSettingsError::DeadZoneUpperBoundGreaterThanLiveZoneUpperBound { deadzone_upperbound: 0.8, livezone_upperbound: 0.7 } ), axis_settings.try_set_deadzone_upperbound(0.8) ); assert_eq!( Err( AxisSettingsError::DeadZoneUpperBoundGreaterThanLiveZoneUpperBound { deadzone_upperbound: 0.3, livezone_upperbound: 0.1 } ), axis_settings.try_set_livezone_upperbound(0.1) ); } }