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Add **UI navigation** system

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#574
This commit is contained in:
Wojciech Figat
2021-12-21 18:12:54 +01:00
parent 71212420f6
commit c178afdf6b
22 changed files with 918 additions and 54 deletions
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75
Source/Engine/UI/GUI/CanvasRootControl.cs
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@@ -1,5 +1,7 @@
// Copyright (c) 2012-2021 Wojciech Figat. All rights reserved.
using System;
namespace FlaxEngine.GUI
{
/// <summary>
@@ -11,6 +13,8 @@ namespace FlaxEngine.GUI
{
private UICanvas _canvas;
private Vector2 _mousePosition;
private float _navigationHeldTimeUp, _navigationHeldTimeDown, _navigationHeldTimeLeft, _navigationHeldTimeRight, _navigationHeldTimeSubmit;
private float _navigationRateTimeUp, _navigationRateTimeDown, _navigationRateTimeLeft, _navigationRateTimeRight, _navigationRateTimeSubmit;
/// <summary>
/// Gets the owning canvas.
@@ -137,6 +141,77 @@ namespace FlaxEngine.GUI
&& (_canvas.TestCanvasIntersection == null || _canvas.TestCanvasIntersection(ref location));
}
/// <inheritdoc />
public override void Update(float deltaTime)
{
// UI navigation
if (_canvas.ReceivesEvents)
{
UpdateNavigation(deltaTime, _canvas.NavigationInputActionUp, NavDirection.Up, ref _navigationHeldTimeUp, ref _navigationRateTimeUp);
UpdateNavigation(deltaTime, _canvas.NavigationInputActionDown, NavDirection.Down, ref _navigationHeldTimeDown, ref _navigationRateTimeDown);
UpdateNavigation(deltaTime, _canvas.NavigationInputActionLeft, NavDirection.Left, ref _navigationHeldTimeLeft, ref _navigationRateTimeLeft);
UpdateNavigation(deltaTime, _canvas.NavigationInputActionRight, NavDirection.Right, ref _navigationHeldTimeRight, ref _navigationRateTimeRight);
UpdateNavigation(deltaTime, _canvas.NavigationInputActionSubmit, ref _navigationHeldTimeSubmit, ref _navigationRateTimeSubmit, SubmitFocused);
}
else
{
_navigationHeldTimeUp = _navigationHeldTimeDown = _navigationHeldTimeLeft = _navigationHeldTimeRight = 0;
_navigationRateTimeUp = _navigationRateTimeDown = _navigationRateTimeLeft = _navigationRateTimeRight = 0;
}
base.Update(deltaTime);
}
private void UpdateNavigation(float deltaTime, string actionName, NavDirection direction, ref float heldTime, ref float rateTime)
{
if (Input.GetAction(actionName))
{
if (heldTime <= Mathf.Epsilon)
{
Navigate(direction);
}
if (heldTime > _canvas.NavigationInputRepeatDelay)
{
rateTime += deltaTime;
}
if (rateTime > _canvas.NavigationInputRepeatRate)
{
Navigate(direction);
rateTime = 0;
}
heldTime += deltaTime;
}
else
{
heldTime = rateTime = 0;
}
}
private void UpdateNavigation(float deltaTime, string actionName, ref float heldTime, ref float rateTime, Action action)
{
if (Input.GetAction(actionName))
{
if (heldTime <= Mathf.Epsilon)
{
action();
}
if (heldTime > _canvas.NavigationInputRepeatDelay)
{
rateTime += deltaTime;
}
if (rateTime > _canvas.NavigationInputRepeatRate)
{
action();
rateTime = 0;
}
heldTime += deltaTime;
}
else
{
heldTime = rateTime = 0;
}
}
/// <inheritdoc />
public override bool OnCharInput(char c)
{