106 lines
3.9 KiB
C#
106 lines
3.9 KiB
C#
using SFML.Graphics;
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using SFML.System;
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using Spine;
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using System;
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using System.Collections.Generic;
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using System.CommandLine;
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using System.Linq;
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using System.Reflection;
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using System.Text;
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using System.Threading.Tasks;
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namespace SpineViewerCLI
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{
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public static class Extension
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{
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/// <summary>
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/// 获取一个对象副本, 继承所有状态
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/// </summary>
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public static SpineObject Copy(this SpineObject self, bool keepTrackTime = false)
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{
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var spineObject = new SpineObject(self, true);
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// 拷贝轨道动画, 但是仅拷贝第一个条目
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foreach (var tr in self.AnimationState.IterTracks().Where(t => t is not null))
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{
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var t = spineObject.AnimationState.SetAnimation(tr!.TrackIndex, tr.Animation, tr.Loop);
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t.TimeScale = tr.TimeScale;
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t.Alpha = tr.Alpha;
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if (keepTrackTime)
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t.TrackTime = tr.TrackTime;
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}
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// XXX(#105): 部分 3.4.02 版本模型在设置动画后出现附件残留, 因此强制进行一次 Setup
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if (spineObject.Version == SpineVersion.V34)
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{
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spineObject.Skeleton.SetSlotsToSetupPose();
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}
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spineObject.Update(0);
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return spineObject;
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}
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/// <summary>
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/// 获取当前状态包围盒
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/// </summary>
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public static FloatRect GetCurrentBounds(this SpineObject self)
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{
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self.Skeleton.GetBounds(out var x, out var y, out var w, out var h);
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return new(x, y, Math.Max(w, 1e-6f), Math.Max(h, 1e-6f));
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}
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/// <summary>
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/// 计算所有轨道第一个条目的动画时长最大值
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/// </summary>
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/// <param name="self"></param>
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/// <returns></returns>
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public static float GetAnimationMaxDuration(this SpineObject self)
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{
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return self.AnimationState.IterTracks().Select(t => t?.Animation.Duration ?? 0).DefaultIfEmpty(0).Max();
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}
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/// <summary>
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/// 合并另一个矩形
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/// </summary>
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public static FloatRect Union(this FloatRect self, FloatRect rect)
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{
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float left = Math.Min(self.Left, rect.Left);
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float top = Math.Min(self.Top, rect.Top);
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float right = Math.Max(self.Left + self.Width, rect.Left + rect.Width);
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float bottom = Math.Max(self.Top + self.Height, rect.Top + rect.Height);
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return new(left, top, right - left, bottom - top);
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}
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/// <summary>
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/// 按给定的帧率获取所有轨道第一个条目动画全时长包围盒大小, 是一个耗时操作, 如果可能的话最好缓存结果
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/// </summary>
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public static FloatRect GetAnimationBounds(this SpineObject self, float fps = 30)
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{
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using var copy = self.Copy();
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var bounds = copy.GetCurrentBounds();
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var maxDuration = copy.GetAnimationMaxDuration();
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for (float tick = 0, delta = 1 / fps; tick < maxDuration; tick += delta)
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{
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bounds = bounds.Union(copy.GetCurrentBounds());
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copy.Update(delta);
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}
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return bounds;
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}
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/// <summary>
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/// 自动添加所有能找到的类型是 <see cref="Argument"/> 或者 <see cref="Option"/> 的公开属性
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/// </summary>
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/// <param name="self"></param>
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public static void AddArgsAndOpts(this Command self)
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{
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// 用反射查找自己所有的公开属性是 Argument 或者 Option 的
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foreach (var prop in self.GetType().GetProperties(BindingFlags.Public | BindingFlags.Instance))
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{
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var value = prop.GetValue(self);
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if (value is Argument arg) self.Add(arg);
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else if (value is Option opt) self.Add(opt);
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}
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}
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}
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}
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