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InputSystem.cs
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InputSystem.cs
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using System;
using System.Reflection;
using UnityExplorer.Core.Unity;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityExplorer.UI;
using System.Collections.Generic;
using UnityExplorer.UI.Inspectors;
using System.Linq;
namespace UnityExplorer.Core.Input
{
public class InputSystem : IHandleInput
{
public InputSystem()
{
ExplorerCore.Log("Initializing new InputSystem support...");
m_kbCurrentProp = TKeyboard.GetProperty("current");
m_kbIndexer = TKeyboard.GetProperty("Item", new Type[] { TKey });
var btnControl = ReflectionUtility.GetTypeByName("UnityEngine.InputSystem.Controls.ButtonControl");
m_btnIsPressedProp = btnControl.GetProperty("isPressed");
m_btnWasPressedProp = btnControl.GetProperty("wasPressedThisFrame");
m_mouseCurrentProp = TMouse.GetProperty("current");
m_leftButtonProp = TMouse.GetProperty("leftButton");
m_rightButtonProp = TMouse.GetProperty("rightButton");
m_positionProp = ReflectionUtility.GetTypeByName("UnityEngine.InputSystem.Pointer")
.GetProperty("position");
m_readVector2InputMethod = ReflectionUtility.GetTypeByName("UnityEngine.InputSystem.InputControl`1")
.MakeGenericType(typeof(Vector2))
.GetMethod("ReadValue");
}
public static Type TKeyboard => m_tKeyboard ?? (m_tKeyboard = ReflectionUtility.GetTypeByName("UnityEngine.InputSystem.Keyboard"));
private static Type m_tKeyboard;
public static Type TMouse => m_tMouse ?? (m_tMouse = ReflectionUtility.GetTypeByName("UnityEngine.InputSystem.Mouse"));
private static Type m_tMouse;
public static Type TKey => m_tKey ?? (m_tKey = ReflectionUtility.GetTypeByName("UnityEngine.InputSystem.Key"));
private static Type m_tKey;
private static PropertyInfo m_btnIsPressedProp;
private static PropertyInfo m_btnWasPressedProp;
private static object CurrentKeyboard => m_currentKeyboard ?? (m_currentKeyboard = m_kbCurrentProp.GetValue(null, null));
private static object m_currentKeyboard;
private static PropertyInfo m_kbCurrentProp;
private static PropertyInfo m_kbIndexer;
private static object CurrentMouse => m_currentMouse ?? (m_currentMouse = m_mouseCurrentProp.GetValue(null, null));
private static object m_currentMouse;
private static PropertyInfo m_mouseCurrentProp;
private static object LeftMouseButton => m_lmb ?? (m_lmb = m_leftButtonProp.GetValue(CurrentMouse, null));
private static object m_lmb;
private static PropertyInfo m_leftButtonProp;
private static object RightMouseButton => m_rmb ?? (m_rmb = m_rightButtonProp.GetValue(CurrentMouse, null));
private static object m_rmb;
private static PropertyInfo m_rightButtonProp;
private static object MousePositionInfo => m_pos ?? (m_pos = m_positionProp.GetValue(CurrentMouse, null));
private static object m_pos;
private static PropertyInfo m_positionProp;
private static MethodInfo m_readVector2InputMethod;
public Vector2 MousePosition
{
get
{
try
{
return (Vector2)m_readVector2InputMethod.Invoke(MousePositionInfo, new object[0]);
}
catch
{
return Vector2.zero;
}
}
}
internal static Dictionary<KeyCode, object> ActualKeyDict = new Dictionary<KeyCode, object>();
internal static Dictionary<string, string> enumNameFixes = new Dictionary<string, string>
{
{ "Control", "Ctrl" },
{ "Return", "Enter" },
{ "Alpha", "Digit" },
{ "Keypad", "Numpad" },
{ "Numlock", "NumLock" },
{ "Print", "PrintScreen" },
{ "BackQuote", "Backquote" }
};
internal object GetActualKey(KeyCode key)
{
if (!ActualKeyDict.ContainsKey(key))
{
var s = key.ToString();
try
{
if (enumNameFixes.First(it => s.Contains(it.Key)) is KeyValuePair<string, string> entry)
s = s.Replace(entry.Key, entry.Value);
}
catch { }
var parsed = Enum.Parse(TKey, s);
var actualKey = m_kbIndexer.GetValue(CurrentKeyboard, new object[] { parsed });
ActualKeyDict.Add(key, actualKey);
}
return ActualKeyDict[key];
}
public bool GetKeyDown(KeyCode key) => (bool)m_btnWasPressedProp.GetValue(GetActualKey(key), null);
public bool GetKey(KeyCode key) => (bool)m_btnIsPressedProp.GetValue(GetActualKey(key), null);
public bool GetMouseButtonDown(int btn)
{
switch (btn)
{
case 0: return (bool)m_btnWasPressedProp.GetValue(LeftMouseButton, null);
case 1: return (bool)m_btnWasPressedProp.GetValue(RightMouseButton, null);
// case 2: return (bool)_btnWasPressedProp.GetValue(MiddleMouseButton, null);
default: throw new NotImplementedException();
}
}
public bool GetMouseButton(int btn)
{
switch (btn)
{
case 0: return (bool)m_btnIsPressedProp.GetValue(LeftMouseButton, null);
case 1: return (bool)m_btnIsPressedProp.GetValue(RightMouseButton, null);
// case 2: return (bool)_btnIsPressedProp.GetValue(MiddleMouseButton, null);
default: throw new NotImplementedException();
}
}
// UI Input
public Type TInputSystemUIInputModule
=> m_tUIInputModule
?? (m_tUIInputModule = ReflectionUtility.GetTypeByName("UnityEngine.InputSystem.UI.InputSystemUIInputModule"));
internal Type m_tUIInputModule;
public BaseInputModule UIModule => m_newInputModule;
internal BaseInputModule m_newInputModule;
public void AddUIInputModule()
{
if (TInputSystemUIInputModule == null)
{
ExplorerCore.LogWarning("Unable to find UI Input Module Type, Input will not work!");
return;
}
var assetType = ReflectionUtility.GetTypeByName("UnityEngine.InputSystem.InputActionAsset");
m_newInputModule = RuntimeProvider.Instance.AddComponent<BaseInputModule>(UIManager.CanvasRoot, TInputSystemUIInputModule);
var asset = RuntimeProvider.Instance.CreateScriptable(assetType);
inputExtensions = ReflectionUtility.GetTypeByName("UnityEngine.InputSystem.InputActionSetupExtensions");
var addMap = inputExtensions.GetMethod("AddActionMap", new Type[] { assetType, typeof(string) });
var map = addMap.Invoke(null, new object[] { asset, "UI" });
CreateAction(map, "point", new[] { "<Mouse>/position" }, "point");
CreateAction(map, "click", new[] { "<Mouse>/leftButton" }, "leftClick");
CreateAction(map, "rightClick", new[] { "<Mouse>/rightButton" }, "rightClick");
CreateAction(map, "scrollWheel", new[] { "<Mouse>/scroll" }, "scrollWheel");
UI_Enable = map.GetType().GetMethod("Enable");
UI_Enable.Invoke(map, new object[0]);
UI_ActionMap = map;
}
private Type inputExtensions;
private object UI_ActionMap;
private MethodInfo UI_Enable;
private void CreateAction(object map, string actionName, string[] bindings, string propertyName)
{
var addAction = inputExtensions.GetMethod("AddAction");
var pointAction = addAction.Invoke(null, new object[] { map, actionName, default, null, null, null, null, null });
var inputActionType = pointAction.GetType();
var addBinding = inputExtensions.GetMethod("AddBinding",
new Type[] { inputActionType, typeof(string), typeof(string), typeof(string), typeof(string) });
foreach (string binding in bindings)
addBinding.Invoke(null, new object[] { pointAction, binding, null, null, null });
var inputRef = ReflectionUtility.GetTypeByName("UnityEngine.InputSystem.InputActionReference")
.GetMethod("Create")
.Invoke(null, new object[] { pointAction });
TInputSystemUIInputModule
.GetProperty(propertyName)
.SetValue(m_newInputModule, inputRef, null);
}
public void ActivateModule()
{
m_newInputModule.ActivateModule();
UI_Enable.Invoke(UI_ActionMap, new object[0]);
}
}
}