9092858a58
I updated everything to the latest Unity Editor. Also realized I had the wrong shaders on my hairs, those are fixed and the hairs look MUCH better!
652 lines
28 KiB
C#
652 lines
28 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text.RegularExpressions;
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using UnityEngine.InputSystem.Utilities;
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namespace UnityEngine.InputSystem.Layouts
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{
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/// <summary>
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/// Specification that can be matched against an <see cref="InputDeviceDescription"/>. This is
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/// used to find which <see cref="InputControlLayout"/> to create for a device when it is discovered.
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/// </summary>
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/// <remarks>
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/// Each matcher is basically a set of key/value pairs where each value may either be
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/// a regular expression or a plain value object. The central method for testing a given matcher
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/// against an <see cref="InputDeviceDescription"/> is <see cref="MatchPercentage"/>.
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///
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/// Various helper methods such as <see cref="WithInterface"/> or <see cref="WithCapability{TValue}"/>
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/// assist with creating matchers.
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///
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/// <example>
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/// <code>
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/// // A matcher that matches a PS4 controller by name.
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/// new InputDeviceMatcher()
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/// .WithInterface("HID")
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/// .WithManufacturer("Sony.+Entertainment") // Regular expression
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/// .WithProduct("Wireless Controller"));
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///
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/// // A matcher that matches the same controller by PID and VID.
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/// new InputDeviceMatcher()
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/// .WithInterface("HID")
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/// .WithCapability("vendorId", 0x54C) // Sony Entertainment.
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/// .WithCapability("productId", 0x9CC)); // Wireless controller.
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/// </code>
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/// </example>
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///
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/// For each registered <see cref="InputControlLayout"/> in the system that represents
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/// a device, arbitrary many matchers can be added. A matcher can be supplied either
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/// at registration time or at any point after using <see cref="InputSystem.RegisterLayoutMatcher"/>.
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///
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/// <example>
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/// <code>
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/// // Supply a matcher at registration time.
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/// InputSystem.RegisterLayout<DualShock4GamepadHID>(
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/// matches: new InputDeviceMatcher()
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/// .WithInterface("HID")
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/// .WithCapability("vendorId", 0x54C) // Sony Entertainment.
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/// .WithCapability("productId", 0x9CC)); // Wireless controller.
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///
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/// // Supply a matcher for an already registered layout.
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/// // This can be called repeatedly and will add another matcher
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/// // each time.
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/// InputSystem.RegisterLayoutMatcher<DualShock4GamepadHID>(
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/// matches: new InputDeviceMatcher()
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/// .WithInterface("HID")
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/// .WithManufacturer("Sony.+Entertainment")
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/// .WithProduct("Wireless Controller"));
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/// </code>
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/// </example>
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/// </remarks>
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/// <seealso cref="InputDeviceDescription"/>
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/// <seealso cref="InputDevice.description"/>
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/// <seealso cref="InputSystem.RegisterLayoutMatcher"/>
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public struct InputDeviceMatcher : IEquatable<InputDeviceMatcher>
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{
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private KeyValuePair<InternedString, object>[] m_Patterns;
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/// <summary>
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/// If true, the matcher has been default-initialized and contains no
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/// matching <see cref="patterns"/>.
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/// </summary>
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/// <value>Whether the matcher contains any matching patterns.</value>
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/// <seealso cref="patterns"/>
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public bool empty => m_Patterns == null;
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/// <summary>
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/// The list of patterns to match.
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/// </summary>
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/// <value>List of matching patterns.</value>
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/// <remarks>
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/// Each pattern is comprised of a key and a value. The key determines which part
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/// of an <see cref="InputDeviceDescription"/> to match.
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///
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/// The value represents the expected value. This can be either a plain string
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/// (matched case-insensitive) or a regular expression.
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/// </remarks>
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/// <seealso cref="WithInterface"/>
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/// <seealso cref="WithCapability{TValue}"/>
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/// <seealso cref="WithProduct"/>
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/// <seealso cref="WithManufacturer"/>
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/// <seealso cref="WithVersion"/>
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/// <seealso cref="WithDeviceClass"/>
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public IEnumerable<KeyValuePair<string, object>> patterns
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{
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get
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{
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if (m_Patterns == null)
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yield break;
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var count = m_Patterns.Length;
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for (var i = 0; i < count; ++i)
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yield return new KeyValuePair<string, object>(m_Patterns[i].Key.ToString(), m_Patterns[i].Value);
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}
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}
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/// <summary>
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/// Add a pattern to <see cref="patterns"/> to match an <see cref="InputDeviceDescription.interfaceName"/>.
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/// </summary>
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/// <param name="pattern">String to match.</param>
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/// <param name="supportRegex">If true (default), <paramref name="pattern"/> can be
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/// a regular expression.</param>
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/// <returns>The modified device matcher with the added pattern.</returns>
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/// <seealso cref="InputDeviceDescription.interfaceName"/>
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public InputDeviceMatcher WithInterface(string pattern, bool supportRegex = true)
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{
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return With(kInterfaceKey, pattern, supportRegex);
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}
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/// <summary>
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/// Add a pattern to <see cref="patterns"/> to match a <see cref="InputDeviceDescription.deviceClass"/>.
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/// </summary>
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/// <param name="pattern">String to match.</param>
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/// <param name="supportRegex">If true (default), <paramref name="pattern"/> can be
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/// a regular expression.</param>
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/// <returns>The modified device matcher with the added pattern.</returns>
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/// <seealso cref="InputDeviceDescription.deviceClass"/>
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public InputDeviceMatcher WithDeviceClass(string pattern, bool supportRegex = true)
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{
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return With(kDeviceClassKey, pattern, supportRegex);
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}
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/// <summary>
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/// Add a pattern to <see cref="patterns"/> to match a <see cref="InputDeviceDescription.manufacturer"/>.
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/// </summary>
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/// <param name="pattern">String to match.</param>
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/// <param name="supportRegex">If true (default), <paramref name="pattern"/> can be
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/// a regular expression.</param>
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/// <returns>The modified device matcher with the added pattern.</returns>
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/// <seealso cref="InputDeviceDescription.manufacturer"/>
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public InputDeviceMatcher WithManufacturer(string pattern, bool supportRegex = true)
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{
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return With(kManufacturerKey, pattern, supportRegex);
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}
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/// <summary>
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/// Add a pattern to <see cref="patterns"/> to match a <see cref="InputDeviceDescription.product"/>.
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/// </summary>
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/// <param name="pattern">String to match.</param>
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/// <param name="supportRegex">If true (default), <paramref name="pattern"/> can be
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/// a regular expression.</param>
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/// <returns>The modified device matcher with the added pattern.</returns>
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/// <seealso cref="InputDeviceDescription.product"/>
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public InputDeviceMatcher WithProduct(string pattern, bool supportRegex = true)
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{
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return With(kProductKey, pattern, supportRegex);
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}
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/// <summary>
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/// Add a pattern to <see cref="patterns"/> to match a <see cref="InputDeviceDescription.version"/>.
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/// </summary>
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/// <param name="pattern">String to match.</param>
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/// <param name="supportRegex">If true (default), <paramref name="pattern"/> can be
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/// a regular expression.</param>
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/// <returns>The modified device matcher with the added pattern.</returns>
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/// <seealso cref="InputDeviceDescription.version"/>
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public InputDeviceMatcher WithVersion(string pattern, bool supportRegex = true)
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{
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return With(kVersionKey, pattern, supportRegex);
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}
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/// <summary>
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/// Add a pattern to <see cref="patterns"/> to match an individual capability in <see cref="InputDeviceDescription.capabilities"/>.
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/// </summary>
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/// <param name="path">Path to the JSON property using '/' as a separator,
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/// e.g. <c>"elements/count"</c>.</param>
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/// <param name="value">Value to match. This can be a string, a regular expression,
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/// a boolean, an integer, or a float. Floating-point numbers are matched with respect
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/// for <c>Mathf.Epsilon</c>. Values are converted between types automatically as
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/// needed (meaning that a bool can be compared to a string, for example).</param>
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/// <typeparam name="TValue">Type of value to match.</typeparam>
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/// <returns>The modified device matcher with the added pattern.</returns>
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/// <remarks>
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/// Capabilities are stored as JSON strings in <see cref="InputDeviceDescription.capabilities"/>.
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/// A matcher has the ability to match specific properties from the JSON object
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/// contained in the capabilities string.
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///
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/// <example>
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/// <code>
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/// // The description for a HID will usually have a HIDDeviceDescriptor in
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/// // JSON format found on its InputDeviceDescription.capabilities. So, a
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/// // real-world device description could look the equivalent of this:
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/// var description = new InputDeviceDescription
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/// {
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/// interfaceName = "HID",
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/// capabilities = new HID.HIDDeviceDescriptor
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/// {
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/// vendorId = 0x54C,
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/// productId = 0x9CC
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/// }.ToJson()
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/// };
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///
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/// // We can create a device matcher that looks for those to properties
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/// // directly in the JSON object.
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/// new InputDeviceMatcher()
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/// .WithCapability("vendorId", 0x54C)
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/// .WithCapability("productId", 0x9CC);
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/// </code>
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/// </example>
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///
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/// Properties in nested objects can be referenced by separating properties
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/// with <c>/</c> and properties in arrays can be indexed with <c>[..]</c>.
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/// </remarks>
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/// <seealso cref="InputDeviceDescription.capabilities"/>
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public InputDeviceMatcher WithCapability<TValue>(string path, TValue value)
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{
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return With(new InternedString(path), value);
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}
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private InputDeviceMatcher With(InternedString key, object value, bool supportRegex = true)
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{
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// If it's a string, check whether it's a regex.
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if (supportRegex && value is string str)
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{
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var mayBeRegex = !str.All(ch => char.IsLetterOrDigit(ch) || char.IsWhiteSpace(ch)) &&
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!double.TryParse(str, out var _); // Avoid '.' in floats forcing the value to be a regex.
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if (mayBeRegex)
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value = new Regex(str, RegexOptions.IgnoreCase);
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}
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// Add to list.
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var result = this;
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ArrayHelpers.Append(ref result.m_Patterns, new KeyValuePair<InternedString, object>(key, value));
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return result;
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}
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/// <summary>
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/// Return the level of matching to the given <paramref name="deviceDescription"/>.
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/// </summary>
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/// <param name="deviceDescription">A device description.</param>
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/// <returns>A score usually in the range between 0 and 1.</returns>
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/// <remarks>
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/// The algorithm computes a score of how well the matcher matches the given description.
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/// Essentially, a matcher that matches every single property that is present (as in
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/// not <c>null</c> and not an empty string) in <paramref name="deviceDescription"/> receives
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/// a score of 1, a matcher that matches none a score of 0. Matches that match only a subset
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/// receive a score in-between.
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///
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/// An exception to this are capabilities. Every single match of a capability is counted
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/// as one property match and added to the score. This means that matchers that match
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/// on multiple capabilities may actually achieve a score >1.
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///
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/// <example>
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/// <code>
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/// var description = new InputDeviceDescription
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/// {
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/// interfaceName = "HID",
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/// product = "MadeUpDevice",
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/// capabilities = new HID.HIDDeviceDescriptor
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/// {
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/// vendorId = 0xABC,
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/// productId = 0xDEF
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/// }.ToJson()
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/// };
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///
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/// // This matcher will achieve a score of 0.666 (2/3) as it
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/// // matches two out of three available properties.
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/// new InputDeviceMatcher()
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/// .WithInterface("HID")
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/// .WithProduct("MadeUpDevice");
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///
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/// // This matcher will achieve a score of 1 despite not matching
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/// // 'product'. The reason is that it matches two keys in
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/// // 'capabilities'.
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/// new InputDeviceMatcher()
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/// .WithInterface("HID")
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/// .WithCapability("vendorId", 0xABC)
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/// .WithCapability("productId", 0xDEF);
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/// </code>
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/// </example>
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/// </remarks>
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public float MatchPercentage(InputDeviceDescription deviceDescription)
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{
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if (empty)
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return 0;
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// Go through all patterns. Score is 0 if any of the patterns
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// doesn't match.
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var numPatterns = m_Patterns.Length;
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for (var i = 0; i < numPatterns; ++i)
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{
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var key = m_Patterns[i].Key;
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var pattern = m_Patterns[i].Value;
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if (key == kInterfaceKey)
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{
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if (string.IsNullOrEmpty(deviceDescription.interfaceName)
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|| !MatchSingleProperty(pattern, deviceDescription.interfaceName))
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return 0;
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}
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else if (key == kDeviceClassKey)
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{
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if (string.IsNullOrEmpty(deviceDescription.deviceClass)
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|| !MatchSingleProperty(pattern, deviceDescription.deviceClass))
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return 0;
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}
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else if (key == kManufacturerKey)
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{
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if (string.IsNullOrEmpty(deviceDescription.manufacturer)
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|| !MatchSingleProperty(pattern, deviceDescription.manufacturer))
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return 0;
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}
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else if (key == kProductKey)
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{
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if (string.IsNullOrEmpty(deviceDescription.product)
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|| !MatchSingleProperty(pattern, deviceDescription.product))
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return 0;
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}
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else if (key == kVersionKey)
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{
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if (string.IsNullOrEmpty(deviceDescription.version)
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|| !MatchSingleProperty(pattern, deviceDescription.version))
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return 0;
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}
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else
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{
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// Capabilities match. Take the key as a path into the JSON
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// object and match the value found at the given path.
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if (string.IsNullOrEmpty(deviceDescription.capabilities))
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return 0;
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var graph = new JsonParser(deviceDescription.capabilities);
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if (!graph.NavigateToProperty(key.ToString()) ||
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!graph.CurrentPropertyHasValueEqualTo(new JsonParser.JsonValue { type = JsonParser.JsonValueType.Any, anyValue = pattern}))
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return 0;
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}
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}
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// All patterns matched. Our score is determined by the number of properties
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// we matched against.
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var propertyCountInDescription = GetNumPropertiesIn(deviceDescription);
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var scorePerProperty = 1.0f / propertyCountInDescription;
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return numPatterns * scorePerProperty;
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}
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private static bool MatchSingleProperty(object pattern, string value)
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{
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// String match.
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if (pattern is string str)
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return string.Compare(str, value, StringComparison.OrdinalIgnoreCase) == 0;
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// Regex match.
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if (pattern is Regex regex)
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return regex.IsMatch(value);
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return false;
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}
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private static int GetNumPropertiesIn(InputDeviceDescription description)
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{
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var count = 0;
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if (!string.IsNullOrEmpty(description.interfaceName))
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count += 1;
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if (!string.IsNullOrEmpty(description.deviceClass))
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count += 1;
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if (!string.IsNullOrEmpty(description.manufacturer))
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count += 1;
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if (!string.IsNullOrEmpty(description.product))
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count += 1;
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if (!string.IsNullOrEmpty(description.version))
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count += 1;
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if (!string.IsNullOrEmpty(description.capabilities))
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count += 1;
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return count;
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}
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/// <summary>
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/// Produce a matcher that matches the given device description verbatim.
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/// </summary>
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/// <param name="deviceDescription">A device description.</param>
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/// <returns>A matcher that matches <paramref name="deviceDescription"/> exactly.</returns>
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/// <remarks>
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/// This method can be used to produce a matcher for an existing device description,
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/// e.g. when writing a layout <see cref="InputControlLayout.Builder"/> that produces
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/// layouts for devices on the fly.
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/// </remarks>
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public static InputDeviceMatcher FromDeviceDescription(InputDeviceDescription deviceDescription)
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{
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var matcher = new InputDeviceMatcher();
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if (!string.IsNullOrEmpty(deviceDescription.interfaceName))
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matcher = matcher.WithInterface(deviceDescription.interfaceName, false);
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if (!string.IsNullOrEmpty(deviceDescription.deviceClass))
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matcher = matcher.WithDeviceClass(deviceDescription.deviceClass, false);
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if (!string.IsNullOrEmpty(deviceDescription.manufacturer))
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matcher = matcher.WithManufacturer(deviceDescription.manufacturer, false);
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if (!string.IsNullOrEmpty(deviceDescription.product))
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matcher = matcher.WithProduct(deviceDescription.product, false);
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if (!string.IsNullOrEmpty(deviceDescription.version))
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matcher = matcher.WithVersion(deviceDescription.version, false);
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// We don't include capabilities in this conversion.
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return matcher;
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}
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/// <summary>
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/// Return a string representation useful for debugging. Lists the
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/// <see cref="patterns"/> contained in the matcher.
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/// </summary>
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/// <returns>A string representation of the matcher.</returns>
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public override string ToString()
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{
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if (empty)
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return "<empty>";
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var result = string.Empty;
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foreach (var pattern in m_Patterns)
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{
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if (result.Length > 0)
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result += $",{pattern.Key}={pattern.Value}";
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else
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result += $"{pattern.Key}={pattern.Value}";
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}
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return result;
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}
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/// <summary>
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/// Test whether this matcher is equivalent to the <paramref name="other"/> matcher.
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/// </summary>
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/// <param name="other">Another device matcher.</param>
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/// <returns>True if the two matchers are equivalent.</returns>
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/// <remarks>
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/// Two matchers are equivalent if they contain the same number of patterns and the
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/// same pattern occurs in each of the matchers. Order of the patterns does not
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/// matter.
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/// </remarks>
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[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1062:Validate arguments of public methods", MessageId = "0", Justification = "False positive.")]
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public bool Equals(InputDeviceMatcher other)
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{
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if (m_Patterns == other.m_Patterns)
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return true;
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if (m_Patterns == null || other.m_Patterns == null)
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return false;
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if (m_Patterns.Length != other.m_Patterns.Length)
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return false;
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// Pattern count matches. Compare pattern by pattern. Order of patterns doesn't matter.
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for (var i = 0; i < m_Patterns.Length; ++i)
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{
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var thisPattern = m_Patterns[i];
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var foundPattern = false;
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for (var n = 0; n < m_Patterns.Length; ++n)
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{
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var otherPattern = other.m_Patterns[n];
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if (thisPattern.Key != otherPattern.Key)
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continue;
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if (!thisPattern.Value.Equals(otherPattern.Value))
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return false;
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foundPattern = true;
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break;
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}
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if (!foundPattern)
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return false;
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}
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return true;
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}
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/// <summary>
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/// Compare this matcher to another.
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/// </summary>
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/// <param name="obj">A matcher object or <c>null</c>.</param>
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/// <returns>True if the matcher is equivalent.</returns>
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/// <seealso cref="Equals(InputDeviceMatcher)"/>
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public override bool Equals(object obj)
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{
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if (ReferenceEquals(null, obj))
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return false;
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return obj is InputDeviceMatcher matcher && Equals(matcher);
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}
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/// <summary>
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/// Compare two matchers for equivalence.
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/// </summary>
|
|
/// <param name="left">First device matcher.</param>
|
|
/// <param name="right">Second device matcher.</param>
|
|
/// <returns>True if the two matchers are equivalent.</returns>
|
|
/// <seealso cref="Equals(InputDeviceMatcher)"/>
|
|
public static bool operator==(InputDeviceMatcher left, InputDeviceMatcher right)
|
|
{
|
|
return left.Equals(right);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Compare two matchers for non-equivalence.
|
|
/// </summary>
|
|
/// <param name="left">First device matcher.</param>
|
|
/// <param name="right">Second device matcher.</param>
|
|
/// <returns>True if the two matchers are not equivalent.</returns>
|
|
/// <seealso cref="Equals(InputDeviceMatcher)"/>
|
|
public static bool operator!=(InputDeviceMatcher left, InputDeviceMatcher right)
|
|
{
|
|
return !(left == right);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Compute a hash code for the device matcher.
|
|
/// </summary>
|
|
/// <returns>A hash code for the matcher.</returns>
|
|
public override int GetHashCode()
|
|
{
|
|
return m_Patterns != null ? m_Patterns.GetHashCode() : 0;
|
|
}
|
|
|
|
private static readonly InternedString kInterfaceKey = new InternedString("interface");
|
|
private static readonly InternedString kDeviceClassKey = new InternedString("deviceClass");
|
|
private static readonly InternedString kManufacturerKey = new InternedString("manufacturer");
|
|
private static readonly InternedString kProductKey = new InternedString("product");
|
|
private static readonly InternedString kVersionKey = new InternedString("version");
|
|
|
|
[Serializable]
|
|
internal struct MatcherJson
|
|
{
|
|
public string @interface;
|
|
public string[] interfaces;
|
|
public string deviceClass;
|
|
public string[] deviceClasses;
|
|
public string manufacturer;
|
|
public string[] manufacturers;
|
|
public string product;
|
|
public string[] products;
|
|
public string version;
|
|
public string[] versions;
|
|
public Capability[] capabilities;
|
|
|
|
public struct Capability
|
|
{
|
|
public string path;
|
|
public string value;
|
|
}
|
|
|
|
public static MatcherJson FromMatcher(InputDeviceMatcher matcher)
|
|
{
|
|
if (matcher.empty)
|
|
return new MatcherJson();
|
|
|
|
var json = new MatcherJson();
|
|
foreach (var pattern in matcher.m_Patterns)
|
|
{
|
|
var key = pattern.Key;
|
|
var value = pattern.Value.ToString();
|
|
|
|
if (key == kInterfaceKey)
|
|
{
|
|
if (json.@interface == null)
|
|
json.@interface = value;
|
|
else
|
|
ArrayHelpers.Append(ref json.interfaces, value);
|
|
}
|
|
else if (key == kDeviceClassKey)
|
|
{
|
|
if (json.deviceClass == null)
|
|
json.deviceClass = value;
|
|
else
|
|
ArrayHelpers.Append(ref json.deviceClasses, value);
|
|
}
|
|
else if (key == kManufacturerKey)
|
|
{
|
|
if (json.manufacturer == null)
|
|
json.manufacturer = value;
|
|
else
|
|
ArrayHelpers.Append(ref json.manufacturers, value);
|
|
}
|
|
else if (key == kProductKey)
|
|
{
|
|
if (json.product == null)
|
|
json.product = value;
|
|
else
|
|
ArrayHelpers.Append(ref json.products, value);
|
|
}
|
|
else if (key == kVersionKey)
|
|
{
|
|
if (json.version == null)
|
|
json.version = value;
|
|
else
|
|
ArrayHelpers.Append(ref json.versions, value);
|
|
}
|
|
else
|
|
{
|
|
ArrayHelpers.Append(ref json.capabilities, new Capability {path = key, value = value});
|
|
}
|
|
}
|
|
|
|
return json;
|
|
}
|
|
|
|
public InputDeviceMatcher ToMatcher()
|
|
{
|
|
var matcher = new InputDeviceMatcher();
|
|
|
|
////TODO: get rid of the piecemeal array allocation and do it in one step
|
|
|
|
// Interfaces.
|
|
if (!string.IsNullOrEmpty(@interface))
|
|
matcher = matcher.WithInterface(@interface);
|
|
if (interfaces != null)
|
|
foreach (var value in interfaces)
|
|
matcher = matcher.WithInterface(value);
|
|
|
|
// Device classes.
|
|
if (!string.IsNullOrEmpty(deviceClass))
|
|
matcher = matcher.WithDeviceClass(deviceClass);
|
|
if (deviceClasses != null)
|
|
foreach (var value in deviceClasses)
|
|
matcher = matcher.WithDeviceClass(value);
|
|
|
|
// Manufacturer.
|
|
if (!string.IsNullOrEmpty(manufacturer))
|
|
matcher = matcher.WithManufacturer(manufacturer);
|
|
if (manufacturers != null)
|
|
foreach (var value in manufacturers)
|
|
matcher = matcher.WithManufacturer(value);
|
|
|
|
// Product.
|
|
if (!string.IsNullOrEmpty(product))
|
|
matcher = matcher.WithProduct(product);
|
|
if (products != null)
|
|
foreach (var value in products)
|
|
matcher = matcher.WithProduct(value);
|
|
|
|
// Version.
|
|
if (!string.IsNullOrEmpty(version))
|
|
matcher = matcher.WithVersion(version);
|
|
if (versions != null)
|
|
foreach (var value in versions)
|
|
matcher = matcher.WithVersion(value);
|
|
|
|
// Capabilities.
|
|
if (capabilities != null)
|
|
foreach (var value in capabilities)
|
|
////FIXME: we're turning all values into strings here
|
|
matcher = matcher.WithCapability(value.path, value.value);
|
|
|
|
return matcher;
|
|
}
|
|
}
|
|
}
|
|
}
|