osu/osu.Game/Storyboards/StoryboardSprite.cs

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// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
using OpenTK;
using osu.Framework.Graphics;
using osu.Game.Storyboards.Drawables;
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using System;
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using System.Collections.Generic;
using System.Linq;
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namespace osu.Game.Storyboards
{
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public class StoryboardSprite : IStoryboardElement
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{
private readonly List<CommandLoop> loops = new List<CommandLoop>();
private readonly List<CommandTrigger> triggers = new List<CommandTrigger>();
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public string Path { get; set; }
public bool IsDrawable => HasCommands;
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public Anchor Origin;
public Vector2 InitialPosition;
public readonly CommandTimelineGroup TimelineGroup = new CommandTimelineGroup();
public double StartTime => Math.Min(
TimelineGroup.HasCommands ? TimelineGroup.CommandsStartTime : double.MaxValue,
loops.Any(l => l.HasCommands) ? loops.Where(l => l.HasCommands).Min(l => l.StartTime) : double.MaxValue);
public double EndTime => Math.Max(
TimelineGroup.HasCommands ? TimelineGroup.CommandsEndTime : double.MinValue,
loops.Any(l => l.HasCommands) ? loops.Where(l => l.HasCommands).Max(l => l.EndTime) : double.MinValue);
public bool HasCommands => TimelineGroup.HasCommands || loops.Any(l => l.HasCommands);
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private delegate void DrawablePropertyInitializer<in T>(Drawable drawable, T value);
private delegate void DrawableTransformer<in T>(Drawable drawable, T value, double duration, Easing easing);
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public StoryboardSprite(string path, Anchor origin, Vector2 initialPosition)
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{
Path = path;
Origin = origin;
InitialPosition = initialPosition;
}
public CommandLoop AddLoop(double startTime, int loopCount)
{
var loop = new CommandLoop(startTime, loopCount);
loops.Add(loop);
return loop;
}
public CommandTrigger AddTrigger(string triggerName, double startTime, double endTime, int groupNumber)
{
var trigger = new CommandTrigger(triggerName, startTime, endTime, groupNumber);
triggers.Add(trigger);
return trigger;
}
public virtual Drawable CreateDrawable()
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=> new DrawableStoryboardSprite(this);
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public void ApplyTransforms(Drawable drawable, IEnumerable<Tuple<CommandTimelineGroup, double>> triggeredGroups = null)
{
applyCommands(drawable, getCommands(g => g.X, triggeredGroups), (d, value) => d.X = value, (d, value, duration, easing) => d.MoveToX(value, duration, easing));
applyCommands(drawable, getCommands(g => g.Y, triggeredGroups), (d, value) => d.Y = value, (d, value, duration, easing) => d.MoveToY(value, duration, easing));
applyCommands(drawable, getCommands(g => g.Scale, triggeredGroups), (d, value) => d.Scale = value, (d, value, duration, easing) => d.ScaleTo(value, duration, easing));
applyCommands(drawable, getCommands(g => g.Rotation, triggeredGroups), (d, value) => d.Rotation = value, (d, value, duration, easing) => d.RotateTo(value, duration, easing));
applyCommands(drawable, getCommands(g => g.Colour, triggeredGroups), (d, value) => d.Colour = value, (d, value, duration, easing) => d.FadeColour(value, duration, easing));
applyCommands(drawable, getCommands(g => g.Alpha, triggeredGroups), (d, value) => d.Alpha = value, (d, value, duration, easing) => d.FadeTo(value, duration, easing));
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applyCommands(drawable, getCommands(g => g.BlendingMode, triggeredGroups), (d, value) => d.Blending = value, (d, value, duration, easing) => d.TransformBlendingMode(value, duration), false);
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var flippable = drawable as IFlippable;
if (flippable != null)
{
applyCommands(drawable, getCommands(g => g.FlipH, triggeredGroups), (d, value) => flippable.FlipH = value, (d, value, duration, easing) => flippable.TransformFlipH(value, duration), false);
applyCommands(drawable, getCommands(g => g.FlipV, triggeredGroups), (d, value) => flippable.FlipV = value, (d, value, duration, easing) => flippable.TransformFlipV(value, duration), false);
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}
}
private void applyCommands<T>(Drawable drawable, IEnumerable<CommandTimeline<T>.TypedCommand> commands, DrawablePropertyInitializer<T> initializeProperty, DrawableTransformer<T> transform, bool alwaysInitialize = true)
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where T : struct
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{
var initialized = false;
foreach (var command in commands.OrderBy(l => l))
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{
if (!initialized)
{
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if (alwaysInitialize || command.StartTime == command.EndTime)
initializeProperty.Invoke(drawable, command.StartValue);
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initialized = true;
}
using (drawable.BeginAbsoluteSequence(command.StartTime))
{
transform(drawable, command.StartValue, 0, Easing.None);
transform(drawable, command.EndValue, command.Duration, command.Easing);
}
}
}
private IEnumerable<CommandTimeline<T>.TypedCommand> getCommands<T>(CommandTimelineSelector<T> timelineSelector, IEnumerable<Tuple<CommandTimelineGroup, double>> triggeredGroups)
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{
var commands = TimelineGroup.GetCommands(timelineSelector);
foreach (var loop in loops)
commands = commands.Concat(loop.GetCommands(timelineSelector));
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if (triggeredGroups != null)
foreach (var pair in triggeredGroups)
commands = commands.Concat(pair.Item1.GetCommands(timelineSelector, pair.Item2));
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return commands;
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}
public override string ToString()
=> $"{Path}, {Origin}, {InitialPosition}";
}
}