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osu-lazer/osu.Game/Graphics/UserInterface/StarCounter.cs
Adonais Romero González 0deb5b4e22 Removed unneeded vars
2016-10-13 18:07:06 -05:00

196 lines
5.9 KiB
C#

//Copyright (c) 2007-2016 ppy Pty Ltd <contact@ppy.sh>.
//Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
using OpenTK;
using osu.Framework;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Framework.Graphics.Transformations;
using osu.Framework.MathUtils;
using osu.Framework.Timing;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace osu.Game.Graphics.UserInterface
{
public class StarCounter : AutoSizeContainer
{
private Container starContainer;
private List<TextAwesome> stars = new List<TextAwesome>();
private double transformStartTime = 0;
/// <summary>
/// Maximum amount of stars displayed.
/// </summary>
/// <remarks>
/// This does not limit the counter value, but the amount of stars displayed.
/// </remarks>
public int MaxStars
{
get;
protected set;
}
public double AnimationDelay = 150;
public double ScalingDuration = 500;
public EasingTypes ScalingEasing = EasingTypes.OutElasticHalf;
public float MinStarScale = 0.3f;
public double FadingDuration = 100;
public float MinStarAlpha = 0.5f;
public float StarSize = 20;
public float StarSpacing = 4;
public float VisibleValue
{
get
{
double elapsedTime = Time - transformStartTime;
double expectedElapsedTime = Math.Abs(prevCount - count) * AnimationDelay;
if (elapsedTime >= expectedElapsedTime)
return count;
return Interpolation.ValueAt(elapsedTime, prevCount, count, 0, expectedElapsedTime);
}
}
private float prevCount;
private float count;
/// <summary>
/// Amount of stars represented.
/// </summary>
public float Count
{
get
{
return count;
}
set
{
prevCount = VisibleValue;
count = value;
if (IsLoaded)
{
transformCount(prevCount, count);
}
}
}
/// <summary>
/// Shows a float count as stars. Used as star difficulty display.
/// </summary>
/// <param name="stars">Maximum amount of stars to display.</param>
public StarCounter(int stars = 10)
{
MaxStars = Math.Max(stars, 0);
Children = new Drawable[]
{
starContainer = new Container
{
Anchor = Anchor.CentreLeft,
Origin = Anchor.CentreLeft,
}
};
}
public override void Load(BaseGame game)
{
base.Load(game);
starContainer.Width = MaxStars * StarSize + Math.Max(MaxStars - 1, 0) * StarSpacing;
starContainer.Height = StarSize;
for (int i = 0; i < MaxStars; i++)
{
TextAwesome star = new TextAwesome
{
Icon = FontAwesome.star,
Anchor = Anchor.CentreLeft,
Origin = Anchor.Centre,
TextSize = StarSize,
Position = new Vector2((StarSize + StarSpacing) * i + (StarSize + StarSpacing) / 2, 0),
};
//todo: user Container<T> once we have it.
stars.Add(star);
starContainer.Add(star);
}
StopAnimation();
}
public void ResetCount()
{
Count = 0;
StopAnimation();
}
public void StopAnimation()
{
prevCount = count;
transformStartTime = Time;
for (int i = 0; i < MaxStars; i++)
{
stars[i].DelayReset();
transformStarQuick(i, count);
}
}
private float getStarScale(int i, float value)
{
if (value <= i)
return MinStarScale;
if (i + 1 <= value)
return 1.0f;
return Interpolation.ValueAt(value, MinStarScale, 1.0f, i, i + 1);
}
private void transformStar(int i, float value)
{
stars[i].FadeTo(i < value ? 1.0f : MinStarAlpha, FadingDuration);
stars[i].ScaleTo(getStarScale(i, value), ScalingDuration, ScalingEasing);
}
private void transformStarQuick(int i, float value)
{
stars[i].FadeTo(i < value ? 1.0f : MinStarAlpha);
stars[i].ScaleTo(getStarScale(i, value));
}
private void transformCount(float currentValue, float newValue)
{
if (currentValue < newValue)
{
for (int i = 0; i < MaxStars; i++)
{
stars[i].DelayReset();
stars[i].ClearTransformations();
if (i > currentValue)
stars[i].Delay((i - currentValue) * AnimationDelay);
transformStar(i, newValue);
}
}
else
{
for (int i = MaxStars - 1; i >= 0; i--)
{
stars[i].DelayReset();
stars[i].ClearTransformations();
if (i < (currentValue - 1))
stars[i].Delay((currentValue - 1 - i) * AnimationDelay);
transformStar(i, newValue);
}
}
transformStartTime = Time;
}
}
}