osu/osu.Game/Screens/Play/KeyCounter.cs
2019-04-01 12:16:32 +09:00

174 lines
5.5 KiB
C#

// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
// See the LICENCE file in the repository root for full licence text.
using System.Collections.Generic;
using System.Linq;
using osu.Framework.Allocation;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Framework.Graphics.Sprites;
using osu.Framework.Graphics.Textures;
using osu.Game.Graphics;
using osu.Game.Graphics.Sprites;
using osuTK;
using osuTK.Graphics;
namespace osu.Game.Screens.Play
{
public abstract class KeyCounter : Container
{
private Sprite buttonSprite;
private Sprite glowSprite;
private Container textLayer;
private SpriteText countSpriteText;
private readonly List<KeyCounterState> states = new List<KeyCounterState>();
private KeyCounterState currentState;
public bool IsCounting { get; set; } = true;
private int countPresses;
public int CountPresses
{
get => countPresses;
private set
{
if (countPresses != value)
{
countPresses = value;
countSpriteText.Text = value.ToString(@"#,0");
}
}
}
private bool isLit;
public bool IsLit
{
get => isLit;
protected set
{
if (isLit != value)
{
isLit = value;
updateGlowSprite(value);
if (value && IsCounting)
{
CountPresses++;
saveState();
}
}
}
}
//further: change default values here and in KeyCounterCollection if needed, instead of passing them in every constructor
public Color4 KeyDownTextColor { get; set; } = Color4.DarkGray;
public Color4 KeyUpTextColor { get; set; } = Color4.White;
public int FadeTime { get; set; }
protected KeyCounter(string name)
{
Name = name;
}
[BackgroundDependencyLoader(true)]
private void load(TextureStore textures, GameplayClock clock)
{
if (clock != null)
Clock = clock;
Children = new Drawable[]
{
buttonSprite = new Sprite
{
Texture = textures.Get(@"KeyCounter/key-up"),
Anchor = Anchor.Centre,
Origin = Anchor.Centre,
},
glowSprite = new Sprite
{
Texture = textures.Get(@"KeyCounter/key-glow"),
Anchor = Anchor.Centre,
Origin = Anchor.Centre,
Alpha = 0
},
textLayer = new Container
{
Anchor = Anchor.Centre,
Origin = Anchor.Centre,
RelativeSizeAxes = Axes.Both,
Children = new Drawable[]
{
new OsuSpriteText
{
Text = Name,
Font = OsuFont.Numeric.With(size: 12),
Anchor = Anchor.Centre,
Origin = Anchor.Centre,
RelativePositionAxes = Axes.Both,
Position = new Vector2(0, -0.25f),
Colour = KeyUpTextColor
},
countSpriteText = new OsuSpriteText
{
Text = CountPresses.ToString(@"#,0"),
Anchor = Anchor.Centre,
Origin = Anchor.Centre,
RelativePositionAxes = Axes.Both,
Position = new Vector2(0, 0.25f),
Colour = KeyUpTextColor
}
}
}
};
//Set this manually because an element with Alpha=0 won't take it size to AutoSizeContainer,
//so the size can be changing between buttonSprite and glowSprite.
Height = buttonSprite.DrawHeight;
Width = buttonSprite.DrawWidth;
}
private void updateGlowSprite(bool show)
{
if (show)
{
glowSprite.FadeIn(FadeTime);
textLayer.FadeColour(KeyDownTextColor, FadeTime);
}
else
{
glowSprite.FadeOut(FadeTime);
textLayer.FadeColour(KeyUpTextColor, FadeTime);
}
}
public void ResetCount()
{
CountPresses = 0;
states.Clear();
}
protected override void Update()
{
base.Update();
if (currentState?.Time > Clock.CurrentTime)
restoreStateTo(Clock.CurrentTime);
}
private void saveState()
{
if (currentState == null || currentState.Time < Clock.CurrentTime)
states.Add(currentState = new KeyCounterState(Clock.CurrentTime, CountPresses));
}
private void restoreStateTo(double time)
{
states.RemoveAll(state => state.Time > time);
currentState = states.LastOrDefault();
CountPresses = currentState?.Count ?? 0;
}
}
}