Class XRInputDeviceValueReader<TValue>

A ScriptableObject that provides a typed value from a device from the XR input subsystem as defined by its characteristics and feature usage string. Intended to be used with an XRInputValueReader as its object reference or as part of an XRInputDeviceButtonReader.

Inheritance

object

Object

ScriptableObject

XRInputDeviceValueReader

XRInputDeviceValueReader<TValue>

XRInputDeviceBoolValueReader

XRInputDeviceFloatValueReader

XRInputDeviceInputTrackingStateValueReader

XRInputDeviceQuaternionValueReader

XRInputDeviceVector2ValueReader

XRInputDeviceVector3ValueReader

Implements

IXRInputValueReader<TValue>

IXRInputValueReader

Inherited Members

XRInputDeviceValueReader.characteristics

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Namespace: UnityEngine.XR.Interaction.Toolkit.Inputs.Readers

Assembly: Unity.XR.Interaction.Toolkit.dll

Syntax

public abstract class XRInputDeviceValueReader<TValue> : XRInputDeviceValueReader, IXRInputValueReader<TValue>, IXRInputValueReader where TValue : struct

Type Parameters

Name	Description
TValue	Type of the value to read, such as Vector2 or float.

Properties

usage

The name of the input feature usage to read.

Declaration

public InputFeatureUsageString<TValue> usage { get; set; }

Property Value

Type	Description
InputFeatureUsageString<TValue>

Methods

ReadBoolValue()

Read the value of the input as a bool.

Declaration

protected bool ReadBoolValue()

Returns

Type	Description
bool	Returns the value of the input as a bool.

ReadFloatValue()

Read the value of the input as a float.

Declaration

protected float ReadFloatValue()

Returns

Type	Description
float	Returns the value of the input as a float.

ReadInputTrackingStateValue()

Read the value of the input as an InputTrackingState.

Declaration

protected InputTrackingState ReadInputTrackingStateValue()

Returns

Type	Description
InputTrackingState	Returns the value of the input as a InputTrackingState.

ReadQuaternionValue()

Read the value of the input as a Quaternion.

Declaration

protected Quaternion ReadQuaternionValue()

Returns

Type	Description
Quaternion	Returns the value of the input as a Quaternion.

ReadUIntValue()

Read the value of the input as an uint.

Declaration

protected uint ReadUIntValue()

Returns

Type	Description
uint	Returns the value of the input as a uint.

ReadValue()

Read the current value from the input source.

Declaration

public abstract TValue ReadValue()

Returns

Type	Description
TValue	Returns the current value from the input source. May return default(TValue) if unused or no source is set.

ReadVector2Value()

Read the value of the input as a Vector2.

Declaration

protected Vector2 ReadVector2Value()

Returns

Type	Description
Vector2	Returns the value of the input as a Vector2.

ReadVector3Value()

Read the value of the input as a Vector3.

Declaration

protected Vector3 ReadVector3Value()

Returns

Type	Description
Vector3	Returns the value of the input as a Vector3.

RefreshInputDeviceIfNeeded()

Updates the found input device used to read input from if it isn't valid. This should be called before attempting to read a value from the input device.

Declaration

protected bool RefreshInputDeviceIfNeeded()

Returns

Type	Description
bool	Returns true if the input device is valid or if a valid one with matching characteristics was found.

TryReadBoolValue(out bool)

Try to read the value of the input as a bool.

Declaration

protected bool TryReadBoolValue(out bool value)

Parameters

Type	Name	Description
bool	value	When this method returns true, the value read. Otherwise, the default for the type.

Returns

Type	Description
bool	Returns true if the value was successfully read.

TryReadFloatValue(out float)

Try to read the value of the input as a float.

Declaration

protected bool TryReadFloatValue(out float value)

Parameters

Type	Name	Description
float	value	When this method returns true, the value read. Otherwise, the default for the type.

Returns

Type	Description
bool	Returns true if the value was successfully read.

TryReadInputTrackingStateValue(out InputTrackingState)

Try to read the value of the input as an InputTrackingState.

Declaration

protected bool TryReadInputTrackingStateValue(out InputTrackingState value)

Parameters

Type	Name	Description
InputTrackingState	value	When this method returns true, the value read. Otherwise, the default for the type.

Returns

Type	Description
bool	Returns true if the value was successfully read.

TryReadQuaternionValue(out Quaternion)

Try to read the value of the input as a Quaternion.

Declaration

protected bool TryReadQuaternionValue(out Quaternion value)

Parameters

Type	Name	Description
Quaternion	value	When this method returns true, the value read. Otherwise, the default for the type.

Returns

Type	Description
bool	Returns true if the value was successfully read.

TryReadUIntValue(out uint)

Try to read the value of the input as an uint.

Declaration

protected bool TryReadUIntValue(out uint value)

Parameters

Type	Name	Description
uint	value	When this method returns true, the value read. Otherwise, the default for the type.

Returns

Type	Description
bool	Returns true if the value was successfully read.

TryReadValue(out TValue)

Try to read the current value from the input source.

Declaration

public abstract bool TryReadValue(out TValue value)

Parameters

Type	Name	Description
TValue	value	When this method returns, contains the current value from the input source. May return default(TValue) if unused or no source is set.

Returns

Type	Description
bool	Returns true if the current value was able to be read (and for actions, also if in progress).

Remarks

You can use the return value of this method instead of only using ReadValue() in order to avoid doing any work when the input action is not in progress, such as when the control is not actuated. This can be useful for performance reasons.
If an input processor on an input action returns a different value from the default TValue when the input action is not in progress, the outvalue returned by this method may not be default(TValue) as is typically the case for Try- methods. If you need to support processors that return a different value from the default when the control is not actuated, you should use ReadValue() instead of using the return value of this method to skip input handling.

TryReadVector2Value(out Vector2)

Try to read the value of the input as a Vector2.

Declaration

protected bool TryReadVector2Value(out Vector2 value)

Parameters

Type	Name	Description
Vector2	value	When this method returns true, the value read. Otherwise, the default for the type.

Returns

Type	Description
bool	Returns true if the value was successfully read.

TryReadVector3Value(out Vector3)

Try to read the value of the input as a Vector3.

Declaration

protected bool TryReadVector3Value(out Vector3 value)

Parameters

Type	Name	Description
Vector3	value	When this method returns true, the value read. Otherwise, the default for the type.

Returns

Type	Description
bool	Returns true if the value was successfully read.

Implements

IXRInputValueReader<TValue>

IXRInputValueReader