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文章目录
前言
hello大家好久没见，之所以隔了这么久才更新并不是因为我又放弃了这个项目，而是接下来要制作的工作太忙碌了，每次我都花了很长的时间解决完一个部分，然后就没力气打开CSDN写文章就直接睡觉去了，现在终于有时间整理下我这半个月都做了什么内容。
那么这一期的标题是什么意思呢？就是我之前漏讲了UI当中非常关键的EventSystem和InputModule，没有这两个组件Unity的UI是不会自动进行UI的导航，点击后的事件啥的，而你创建一个canvas，unity会自动生成了一个eventsystem，但是Input Module则是绑定的是Unity最传统的Input Manager,如果你用过前两三年前unity推出的input system的话，你知道它们是要求你替换到input system独有的input module的，
既然我们是使用插件InControl来作为输入控制，我们也要生成一个空洞骑士独有的UI输入木块。
一、pandas是什么？
首先来创建一个类名字叫HollowKnightInputModule.cs，然后它的代码逻辑整体是根据UnityEngine.EventSystems里面的StandaloneInputModule.cs来写的，如果不了解的话建议先了解一下unity自带的input module的源码。
cs
using System;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.Serialization;
namespace InControl
{
[AddComponentMenu("Event/Hollow Knight Input Module")]
public class HollowKnightInputModule : StandaloneInputModule
{
public HeroActions heroActions;
public PlayerAction SubmitAction
{
get
{
return InputHandler.Instance.inputActions.menuSubmit;
}
set
{
}
}
public PlayerAction CancelAction {
get
{
return InputHandler.Instance.inputActions.menuCancel;
}
set
{
}
}
public PlayerAction JumpAction {
get
{
return InputHandler.Instance.inputActions.jump;
}
set
{
}
}
public PlayerAction CastAction {
get
{
return InputHandler.Instance.inputActions.cast;
}
set
{
}
}
public PlayerAction AttackAction {
get
{
return InputHandler.Instance.inputActions.attack;
}
set
{
}
}
public PlayerTwoAxisAction MoveAction {
get
{
return InputHandler.Instance.inputActions.moveVector;
}
set
{
}
}
[Range(0.1f, 0.9f)]
public float analogMoveThreshold = 0.5f;
public float moveRepeatFirstDuration = 0.8f;
public float moveRepeatDelayDuration = 0.1f;
[FormerlySerializedAs("allowMobileDevice")]
public new bool forceModuleActive;
public bool allowMouseInput = true;
public bool focusOnMouseHover;
private InputDevice inputDevice;
private Vector3 thisMousePosition;
private Vector3 lastMousePosition;
private Vector2 thisVectorState;
private Vector2 lastVectorState;
private float nextMoveRepeatTime;
private float lastVectorPressedTime;
private TwoAxisInputControl direction;
public HollowKnightInputModule()
{
heroActions = new HeroActions();
direction = new TwoAxisInputControl();
direction.StateThreshold = analogMoveThreshold;
}
public override void UpdateModule()
{
lastMousePosition = thisMousePosition;
thisMousePosition = Input.mousePosition;
}
public override bool IsModuleSupported()
{
return forceModuleActive || Input.mousePresent;
}
public override bool ShouldActivateModule()
{
if (!enabled || !gameObject.activeInHierarchy)
{
return false;
}
UpdateInputState();
bool flag = false;
flag |= SubmitAction.WasPressed;
flag |= CancelAction.WasPressed;
flag |= JumpAction.WasPressed;
flag |= CastAction.WasPressed;
flag |= AttackAction.WasPressed;
flag |= VectorWasPressed;
if (allowMouseInput)
{
flag |= MouseHasMoved;
flag |= MouseButtonIsPressed;
}
if (Input.touchCount > 0)
{
flag = true;
}
return flag;
}
public override void ActivateModule()
{
base.ActivateModule();
thisMousePosition = Input.mousePosition;
lastMousePosition = Input.mousePosition;
GameObject gameObject = eventSystem.currentSelectedGameObject;
if (gameObject == null)
{
gameObject = eventSystem.firstSelectedGameObject;
}
eventSystem.SetSelectedGameObject(gameObject, GetBaseEventData());
}
public override void Process()
{
bool flag = SendUpdateEventToSelectedObject();
if (eventSystem.sendNavigationEvents)
{
if (!flag)
{
flag = SendVectorEventToSelectedObject();
}
if (!flag)
{
SendButtonEventToSelectedObject();
}
}
if (allowMouseInput)
{
ProcessMouseEvent();
}
}
private bool SendButtonEventToSelectedObject()
{
if (eventSystem.currentSelectedGameObject == null)
{
return false;
}
if (UIManager.instance.IsFadingMenu)
{
return false;
}
BaseEventData baseEventData = GetBaseEventData();
Platform.MenuActions menuAction = Platform.Current.GetMenuAction(SubmitAction.WasPressed, CancelAction.WasPressed, JumpAction.WasPressed, AttackAction.WasPressed, CastAction.WasPressed);
if (menuAction == Platform.MenuActions.Submit)
{
ExecuteEvents.Execute<ISubmitHandler>(eventSystem.currentSelectedGameObject, baseEventData, ExecuteEvents.submitHandler);
}
else if (menuAction == Platform.MenuActions.Cancel)
{
PlayerAction playerAction = AttackAction.WasPressed ? AttackAction : CastAction;
if (!playerAction.WasPressed || playerAction.FindBinding(new MouseBindingSource(Mouse.LeftButton)) == null)
{
ExecuteEvents.Execute<ICancelHandler>(eventSystem.currentSelectedGameObject, baseEventData, ExecuteEvents.cancelHandler);
}
}
return baseEventData.used;
}
private bool SendVectorEventToSelectedObject()
{
if (!VectorWasPressed)
{
return false;
}
AxisEventData axisEventData = GetAxisEventData(thisVectorState.x, thisVectorState.y, 0.5f);
if (axisEventData.moveDir != MoveDirection.None)
{
if (eventSystem.currentSelectedGameObject == null)
{
eventSystem.SetSelectedGameObject(eventSystem.firstSelectedGameObject, GetBaseEventData());
}
else
{
ExecuteEvents.Execute(eventSystem.currentSelectedGameObject, axisEventData, ExecuteEvents.moveHandler);
}
SetVectorRepeatTimer();
}
return axisEventData.used;
}
protected override void ProcessMove(PointerEventData pointerEvent)
{
GameObject pointerEnter = pointerEvent.pointerEnter;
base.ProcessMove(pointerEvent);
if (focusOnMouseHover && pointerEnter != pointerEvent.pointerEnter)
{
GameObject eventHandler = ExecuteEvents.GetEventHandler<ISelectHandler>(pointerEvent.pointerEnter);
eventSystem.SetSelectedGameObject(eventHandler, pointerEvent);
}
}
private void Update()
{
direction.Filter(Device.Direction, Time.deltaTime);
}
private void UpdateInputState()
{
lastVectorState = thisVectorState;
thisVectorState = Vector2.zero;
TwoAxisInputControl twoAxisInputControl = MoveAction ?? direction;
if (Utility.AbsoluteIsOverThreshold(twoAxisInputControl.X, analogMoveThreshold))
{
thisVectorState.x = Mathf.Sign(twoAxisInputControl.X);
}
if (Utility.AbsoluteIsOverThreshold(twoAxisInputControl.Y, analogMoveThreshold))
{
thisVectorState.y = Mathf.Sign(twoAxisInputControl.Y);
}
if (VectorIsReleased)
{
nextMoveRepeatTime = 0f;
}
if (VectorIsPressed)
{
if (lastVectorState == Vector2.zero)
{
if (Time.realtimeSinceStartup > lastVectorPressedTime + 0.1f)
{
nextMoveRepeatTime = Time.realtimeSinceStartup + moveRepeatFirstDuration;
}
else
{
nextMoveRepeatTime = Time.realtimeSinceStartup + moveRepeatDelayDuration;
}
}
lastVectorPressedTime = Time.realtimeSinceStartup;
}
}
public InputDevice Device
{
get
{
return inputDevice ?? InputManager.ActiveDevice;
}
set
{
inputDevice = value;
}
}
private void SetVectorRepeatTimer()
{
nextMoveRepeatTime = Mathf.Max(nextMoveRepeatTime, Time.realtimeSinceStartup + moveRepeatDelayDuration);
}
private bool VectorIsPressed
{
get
{
return thisVectorState != Vector2.zero;
}
}
private bool VectorIsReleased
{
get
{
return thisVectorState == Vector2.zero;
}
}
private bool VectorHasChanged
{
get
{
return thisVectorState != lastVectorState;
}
}
private bool VectorWasPressed
{
get
{
return (VectorIsPressed && Time.realtimeSinceStartup > nextMoveRepeatTime) || (VectorIsPressed && lastVectorState == Vector2.zero);
}
}
private bool MouseHasMoved
{
get
{
return (thisMousePosition - lastMousePosition).sqrMagnitude > 0f;
}
}
private bool MouseButtonIsPressed
{
get
{
return Input.GetMouseButtonDown(0);
}
}
}
}这里涉及到我们InputActions.cs和InputHandler.cs代码相关的：
我们先来到HeroActions.cs，创建好menuUI的按键输入：
cs
using System;
using InControl;
public class HeroActions : PlayerActionSet
{
public PlayerAction left;
public PlayerAction right;
public PlayerAction up;
public PlayerAction down;
public PlayerAction menuSubmit;
public PlayerAction menuCancel;
public PlayerTwoAxisAction moveVector;
public PlayerAction attack;
public PlayerAction jump;
public PlayerAction dash;
public PlayerAction cast;
public PlayerAction focus;
public PlayerAction quickCast;
public PlayerAction openInventory;
public HeroActions()
{
menuSubmit = CreatePlayerAction("Submit");
menuCancel = CreatePlayerAction("Cancel");
left = CreatePlayerAction("Left");
left.StateThreshold = 0.3f;
right = CreatePlayerAction("Right");
right.StateThreshold = 0.3f;
up = CreatePlayerAction("Up");
up.StateThreshold = 0.3f;
down = CreatePlayerAction("Down");
down.StateThreshold = 0.3f;
moveVector = CreateTwoAxisPlayerAction(left, right, down, up);
moveVector.LowerDeadZone = 0.15f;
moveVector.UpperDeadZone = 0.95f;
attack = CreatePlayerAction("Attack");
jump = CreatePlayerAction("Jump");
dash = CreatePlayerAction("Dash");
cast = CreatePlayerAction("Cast");
focus = CreatePlayerAction("Focus");
quickCast = CreatePlayerAction("QuickCast");
openInventory = CreatePlayerAction("Inventory");
}
}来到InputHandler.cs当中，我们要做的功能如下，首先当然是添加新的按键绑定AddKeyBinding，还有添加新的默认绑定AddDefaultBinding，特别是我们新建的两个行为PlayerAction的menuCancel和menuSubmit
cs
private void MapKeyboardLayoutFromGameSettings()
{
AddKeyBinding(inputActions.menuSubmit, "Return");
AddKeyBinding(inputActions.menuCancel, "Escape");
AddKeyBinding(inputActions.up, "UpArrow");
AddKeyBinding(inputActions.down, "DownArrow");
AddKeyBinding(inputActions.left, "LeftArrow");
AddKeyBinding(inputActions.right, "RightArrow");
AddKeyBinding(inputActions.attack, "Z");
AddKeyBinding(inputActions.jump, "X");
AddKeyBinding(inputActions.dash, "D");
AddKeyBinding(inputActions.cast, "F");
AddKeyBinding(inputActions.quickCast, "Q");
AddKeyBinding(inputActions.openInventory, "I");
}
private void SetupNonMappableBindings()
{
inputActions = new HeroActions();
inputActions.menuSubmit.AddDefaultBinding(new Key[]
{
Key.Return
});
inputActions.menuCancel.AddDefaultBinding(new Key[]
{
Key.Escape
});
inputActions.up.AddDefaultBinding(new Key[]
{
Key.UpArrow
});
inputActions.down.AddDefaultBinding(new Key[]
{
Key.DownArrow
});
inputActions.left.AddDefaultBinding(new Key[]
{
Key.LeftArrow
});
inputActions.right.AddDefaultBinding(new Key[]
{
Key.RightArrow
});
inputActions.attack.AddDefaultBinding(new Key[]
{
Key.Z
});
inputActions.jump.AddDefaultBinding(new Key[]
{
Key.X
});
inputActions.dash.AddDefaultBinding(new Key[]
{
Key.D
});
inputActions.cast.AddDefaultBinding(new Key[]
{
Key.F
});
inputActions.quickCast.AddDefaultBinding(new Key[]
{
Key.Q
});
inputActions.openInventory.AddDefaultBinding(new Key[]
{
Key.I
});
}
private static void AddKeyBinding(PlayerAction action, string savedBinding)
{
Mouse mouse = Mouse.None;
Key key;
if (!Enum.TryParse(savedBinding, out key) && !Enum.TryParse(savedBinding, out mouse))
{
return;
}
if (mouse != Mouse.None)
{
action.AddBinding(new MouseBindingSource(mouse));
return;
}
action.AddBinding(new KeyBindingSource(new Key[]
{
key
}));
}还有就是解决上期忘记讲到的两套Input输入一个是游戏内的输入，一个是过场的输入，当在过场UI阶段，我们就使用过场的输入，屏蔽游戏内的输入，然后是决定UI界面的输入和停止UI界面的输入，完整的代码如下：
cs
using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine.UI;
using GlobalEnums;
using InControl;
using UnityEngine;
using UnityEngine.EventSystems;
public class InputHandler : MonoBehaviour
{
[SerializeField] public bool pauseAllowed { get; private set; }
public bool acceptingInput = true;
public bool skippingCutscene;
private float skipCooldownTime;
private bool isGameplayScene;
private bool isMenuScene;
public static InputHandler Instance;
private GameManager gm;
private PlayerData playerData;
public InputDevice gameController;
public HeroActions inputActions;
public BindingSourceType lastActiveController;
public InputDeviceStyle lastInputDeviceStyle;
public delegate void CursorVisibilityChange(bool isVisible); //指针显示变化时发生的委托
public event CursorVisibilityChange OnCursorVisibilityChange;//指针显示变化时发生的事件
public bool readyToSkipCutscene;
public SkipPromptMode skipMode { get; private set; }
public delegate void ActiveControllerSwitch();
public event ActiveControllerSwitch RefreshActiveControllerEvent;
public void Awake()
{
Instance = this;
gm = GetComponent<GameManager>();
inputActions = new HeroActions();
acceptingInput = true;
pauseAllowed = true;
skipMode = SkipPromptMode.NOT_SKIPPABLE;
}
public void Start()
{
playerData = gm.playerData;
SetupNonMappableBindings();
MapKeyboardLayoutFromGameSettings();
if(InputManager.ActiveDevice != null && InputManager.ActiveDevice.IsAttached)
{
}
else
{
gameController = InputDevice.Null;
}
Debug.LogFormat("Input Device set to {0}.", new object[]
{
gameController.Name
});
lastActiveController = BindingSourceType.None;
}
private void Update()
{
UpdateActiveController();
if (acceptingInput)
{
if(gm.gameState == GameState.PLAYING)
{
PlayingInput();
}
else if(gm.gameState == GameState.CUTSCENE)
{
CutSceneInput();
}
}
}
public void UpdateActiveController()
{
if (lastActiveController != inputActions.LastInputType || lastInputDeviceStyle != inputActions.LastDeviceStyle)
{
lastActiveController = inputActions.LastInputType;
lastInputDeviceStyle = inputActions.LastDeviceStyle;
if (RefreshActiveControllerEvent != null)
{
RefreshActiveControllerEvent();
}
}
}
private void PlayingInput()
{
}
private void CutSceneInput()
{
if (!Input.anyKeyDown && !gameController.AnyButton.WasPressed)
{
return;
}
if (skippingCutscene)
{
return;
}
switch (skipMode)
{
case SkipPromptMode.SKIP_PROMPT: //确认跳过过场
if (!readyToSkipCutscene)
{
//TODO:
gm.ui.ShowCutscenePrompt(CinematicSkipPopup.Texts.Skip);
readyToSkipCutscene = true;
CancelInvoke("StopCutsceneInput");
Invoke("StopCutsceneInput", 5f * Time.timeScale);
skipCooldownTime = Time.time + 0.3f;
return;
}
if(Time.time < skipCooldownTime)
{
return;
}
CancelInvoke("StopCutsceneInput");
readyToSkipCutscene = false;
skippingCutscene = true;
gm.SkipCutscene();
return;
case SkipPromptMode.SKIP_INSTANT://立刻跳过过场
skippingCutscene = true;
gm.SkipCutscene();
return;
case SkipPromptMode.NOT_SKIPPABLE: //不准跳过过场
return;
case SkipPromptMode.NOT_SKIPPABLE_DUE_TO_LOADING: //在过场视频加载的时候不准跳过过场
gm.ui.ShowCutscenePrompt(CinematicSkipPopup.Texts.Skip);
CancelInvoke("StopCutsceneInput");
Invoke("StopCutsceneInput", 5f * Time.timeScale);
break;
default:
return;
}
}
private void StopCutsceneInput()
{
readyToSkipCutscene = false;
gm.ui.HideCutscenePrompt();
}
private void MapKeyboardLayoutFromGameSettings()
{
AddKeyBinding(inputActions.menuSubmit, "Return");
AddKeyBinding(inputActions.menuCancel, "Escape");
AddKeyBinding(inputActions.up, "UpArrow");
AddKeyBinding(inputActions.down, "DownArrow");
AddKeyBinding(inputActions.left, "LeftArrow");
AddKeyBinding(inputActions.right, "RightArrow");
AddKeyBinding(inputActions.attack, "Z");
AddKeyBinding(inputActions.jump, "X");
AddKeyBinding(inputActions.dash, "D");
AddKeyBinding(inputActions.cast, "F");
AddKeyBinding(inputActions.quickCast, "Q");
AddKeyBinding(inputActions.openInventory, "I");
}
private void SetupNonMappableBindings()
{
inputActions = new HeroActions();
inputActions.menuSubmit.AddDefaultBinding(new Key[]
{
Key.Return
});
inputActions.menuCancel.AddDefaultBinding(new Key[]
{
Key.Escape
});
inputActions.up.AddDefaultBinding(new Key[]
{
Key.UpArrow
});
inputActions.down.AddDefaultBinding(new Key[]
{
Key.DownArrow
});
inputActions.left.AddDefaultBinding(new Key[]
{
Key.LeftArrow
});
inputActions.right.AddDefaultBinding(new Key[]
{
Key.RightArrow
});
inputActions.attack.AddDefaultBinding(new Key[]
{
Key.Z
});
inputActions.jump.AddDefaultBinding(new Key[]
{
Key.X
});
inputActions.dash.AddDefaultBinding(new Key[]
{
Key.D
});
inputActions.cast.AddDefaultBinding(new Key[]
{
Key.F
});
inputActions.quickCast.AddDefaultBinding(new Key[]
{
Key.Q
});
inputActions.openInventory.AddDefaultBinding(new Key[]
{
Key.I
});
}
private static void AddKeyBinding(PlayerAction action, string savedBinding)
{
Mouse mouse = Mouse.None;
Key key;
if (!Enum.TryParse(savedBinding, out key) && !Enum.TryParse(savedBinding, out mouse))
{
return;
}
if (mouse != Mouse.None)
{
action.AddBinding(new MouseBindingSource(mouse));
return;
}
action.AddBinding(new KeyBindingSource(new Key[]
{
key
}));
}
public void SceneInit()
{
if (gm.IsGameplayScene())
{
isGameplayScene = true;
}
else
{
isGameplayScene = false;
}
if (gm.IsMenuScene())
{
isMenuScene = true;
}
else
{
isMenuScene = false;
}
}
public void SetSkipMode(SkipPromptMode newMode)
{
Debug.Log("Setting skip mode: " + newMode.ToString());
if (newMode == SkipPromptMode.NOT_SKIPPABLE)
{
StopAcceptingInput();
}
else if (newMode == SkipPromptMode.SKIP_PROMPT)
{
readyToSkipCutscene = false;
StartAcceptingInput();
}
else if (newMode == SkipPromptMode.SKIP_INSTANT)
{
StartAcceptingInput();
}
else if (newMode == SkipPromptMode.NOT_SKIPPABLE_DUE_TO_LOADING)
{
readyToSkipCutscene = false;
StartAcceptingInput();
}
skipMode = newMode;
}
public void StopUIInput()
{
acceptingInput = false;
EventSystem.current.sendNavigationEvents = false;
UIManager.instance.inputModule.allowMouseInput = false;
}
public void StartUIInput()
{
acceptingInput = true;
EventSystem.current.sendNavigationEvents = true;
UIManager.instance.inputModule.allowMouseInput = true;
}
public void StopMouseInput()
{
UIManager.instance.inputModule.allowMouseInput = false;
}
public void StartMouseInput()
{
UIManager.instance.inputModule.allowMouseInput = true;
}
public void PreventPause()
{
}
public void StopAcceptingInput()
{
acceptingInput = false;
}
public void StartAcceptingInput()
{
acceptingInput = true;
}
public void AllowPause()
{
pauseAllowed = true;
}
}回到编辑器当中，我们来给UIManager的EventSystem添加上这两个脚本：
总结
OK大功告成，这期算是对前两期的补充内容了，如果你在前两期遇到bug的话可以在这里找下解决办法。