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185 lines
6.0 KiB
C#
185 lines
6.0 KiB
C#
// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
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// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
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using System;
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using System.Collections.Generic;
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using osu.Framework.Allocation;
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using osu.Framework.Configuration;
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using osu.Framework.Graphics;
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using osu.Framework.Graphics.Containers;
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using osu.Framework.Graphics.OpenGL.Textures;
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using osu.Framework.Graphics.Lines;
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using osu.Framework.Graphics.Textures;
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using osu.Game.Configuration;
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using OpenTK;
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using OpenTK.Graphics.ES30;
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using OpenTK.Graphics;
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namespace osu.Game.Rulesets.Osu.Objects.Drawables.Pieces
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{
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public class SliderBody : Container, ISliderProgress
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{
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private readonly Path path;
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private readonly BufferedContainer container;
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public float PathWidth
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{
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get { return path.PathWidth; }
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set { path.PathWidth = value; }
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}
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public double? SnakedStart { get; private set; }
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public double? SnakedEnd { get; private set; }
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private Color4 accentColour;
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/// <summary>
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/// Used to colour the path.
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/// </summary>
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public Color4 AccentColour
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{
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get { return accentColour; }
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set
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{
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if (accentColour == value)
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return;
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accentColour = value;
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if (LoadState == LoadState.Loaded)
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Schedule(reloadTexture);
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}
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}
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private int textureWidth => (int)PathWidth * 2;
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private readonly Slider slider;
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public SliderBody(Slider s)
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{
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slider = s;
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Children = new Drawable[]
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{
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container = new BufferedContainer
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{
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CacheDrawnFrameBuffer = true,
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Children = new Drawable[]
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{
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path = new Path
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{
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BlendingMode = BlendingMode.None,
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},
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}
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},
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};
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container.Attach(RenderbufferInternalFormat.DepthComponent16);
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}
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public void SetRange(double p0, double p1)
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{
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if (p0 > p1)
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MathHelper.Swap(ref p0, ref p1);
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if (updateSnaking(p0, p1))
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{
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// Autosizing does not give us the desired behaviour here.
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// We want the container to have the same size as the slider,
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// and to be positioned such that the slider head is at (0,0).
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container.Size = path.Size;
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container.Position = -path.PositionInBoundingBox(slider.Curve.PositionAt(0) - currentCurve[0]);
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container.ForceRedraw();
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}
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}
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private Bindable<bool> snakingIn;
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private Bindable<bool> snakingOut;
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[BackgroundDependencyLoader]
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private void load(OsuConfigManager config)
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{
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snakingIn = config.GetBindable<bool>(OsuSetting.SnakingInSliders);
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snakingOut = config.GetBindable<bool>(OsuSetting.SnakingOutSliders);
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reloadTexture();
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}
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private void reloadTexture()
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{
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var texture = new Texture(textureWidth, 1);
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//initialise background
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var upload = new TextureUpload(textureWidth * 4);
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var bytes = upload.Data;
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const float aa_portion = 0.02f;
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const float border_portion = 0.128f;
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const float gradient_portion = 1 - border_portion;
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const float opacity_at_centre = 0.3f;
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const float opacity_at_edge = 0.8f;
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for (int i = 0; i < textureWidth; i++)
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{
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float progress = (float)i / (textureWidth - 1);
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if (progress <= border_portion)
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{
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bytes[i * 4] = 255;
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bytes[i * 4 + 1] = 255;
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bytes[i * 4 + 2] = 255;
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bytes[i * 4 + 3] = (byte)(Math.Min(progress / aa_portion, 1) * 255);
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}
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else
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{
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progress -= border_portion;
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bytes[i * 4] = (byte)(AccentColour.R * 255);
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bytes[i * 4 + 1] = (byte)(AccentColour.G * 255);
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bytes[i * 4 + 2] = (byte)(AccentColour.B * 255);
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bytes[i * 4 + 3] = (byte)((opacity_at_edge - (opacity_at_edge - opacity_at_centre) * progress / gradient_portion) * (AccentColour.A * 255));
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}
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}
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texture.SetData(upload);
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path.Texture = texture;
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}
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private readonly List<Vector2> currentCurve = new List<Vector2>();
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private bool updateSnaking(double p0, double p1)
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{
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if (SnakedStart == p0 && SnakedEnd == p1) return false;
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SnakedStart = p0;
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SnakedEnd = p1;
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slider.Curve.GetPathToProgress(currentCurve, p0, p1);
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path.ClearVertices();
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foreach (Vector2 p in currentCurve)
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path.AddVertex(p - currentCurve[0]);
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return true;
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}
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public void UpdateProgress(double progress, int repeat)
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{
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double start = 0;
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double end = snakingIn ? MathHelper.Clamp((Time.Current - (slider.StartTime - DrawableOsuHitObject.TIME_PREEMPT)) / DrawableOsuHitObject.TIME_FADEIN, 0, 1) : 1;
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if (repeat >= slider.RepeatCount - 1)
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{
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if (Math.Min(repeat, slider.RepeatCount - 1) % 2 == 1)
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{
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start = 0;
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end = snakingOut ? progress : 1;
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}
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else
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{
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start = snakingOut ? progress : 0;
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}
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}
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SetRange(start, end);
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}
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}
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} |