dingyuntian
04536c4b81
- 移除 AsepriteMeta 中未使用的 layers/slices 字段 - 新增 SanitizeJsonForUnity 正则清理尾随逗号 - 修复 Aseprite 导出 JSON 偶发尾随逗号导致 JsonUtility 解析失败
689 lines
27 KiB
C#
689 lines
27 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Text.RegularExpressions;
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using UnityEditor;
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using UnityEditor.U2D.Sprites;
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using UnityEngine;
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namespace AibisDream.SystemEditor
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{
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public static class AnimationClipGeneratorCore
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{
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// 检查SpriteMode
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public static SpriteImportMode CheckSpriteMode(string texturePath)
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{
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TextureImporter textureImporter = AssetImporter.GetAtPath(texturePath) as TextureImporter;
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if (textureImporter == null)
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{
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throw new Exception($"无法加载纹理导入器: {texturePath}");
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}
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return textureImporter.spriteImportMode;
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}
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// 解析Aseprite JSON
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public static ProcessedAnimationData ParseAsepriteJson(string jsonPath, string texturePath)
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{
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string jsonContent = File.ReadAllText(jsonPath);
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// Unity的JsonUtility不支持Dictionary，需要手动解析frames对象
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// 使用SimpleJSON或手动解析
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ProcessedAnimationData result = ParseAsepriteJsonManual(jsonContent);
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if (result.frames == null || result.frames.Count == 0)
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{
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throw new Exception("无效的Aseprite JSON格式：无法解析frames");
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}
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return result;
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}
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private static ProcessedAnimationData ParseAsepriteJsonManual(string jsonContent)
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{
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List<FrameData> frames = new List<FrameData>();
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List<ProcessedAnimationClip> animations = new List<ProcessedAnimationClip>();
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try
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{
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// 解析meta部分
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int metaStart = jsonContent.IndexOf("\"meta\":");
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if (metaStart == -1)
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{
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throw new Exception("找不到meta部分");
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}
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// 找到meta对象的结束位置
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int metaBraceStart = jsonContent.IndexOf('{', metaStart);
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int metaBraceEnd = FindMatchingBrace(jsonContent, metaBraceStart);
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string metaJson = jsonContent.Substring(metaBraceStart, metaBraceEnd - metaBraceStart + 1);
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metaJson = SanitizeJsonForUnity(metaJson);
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AsepriteMeta meta = JsonUtility.FromJson<AsepriteMeta>(metaJson);
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// 解析frameTags
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if (meta.frameTags != null)
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{
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foreach (var tag in meta.frameTags)
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{
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List<int> frameIndices = new List<int>();
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int start = tag.from;
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int end = tag.to;
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if (tag.direction == "forward" || tag.direction == "pingpong" || string.IsNullOrEmpty(tag.direction))
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{
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for (int i = start; i <= end; i++)
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{
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frameIndices.Add(i);
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}
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}
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else if (tag.direction == "reverse")
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{
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for (int i = end; i >= start; i--)
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{
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frameIndices.Add(i);
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}
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}
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animations.Add(new ProcessedAnimationClip
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{
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name = tag.name,
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frameIndices = frameIndices,
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loop = true,
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frameDuration = 0,
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sampleRate = 100
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});
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}
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}
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// 解析frames对象 - 使用正则表达式或手动解析
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int framesStart = jsonContent.IndexOf("\"frames\":");
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if (framesStart == -1)
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{
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throw new Exception("找不到frames部分");
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}
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// 找到frames对象的开始和结束
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int framesBraceStart = jsonContent.IndexOf('{', framesStart);
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int framesBraceEnd = FindMatchingBrace(jsonContent, framesBraceStart);
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string framesContent = jsonContent.Substring(framesBraceStart + 1, framesBraceEnd - framesBraceStart - 1);
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// 解析每个帧条目
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ParseFramesContent(framesContent, frames);
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// 按名称排序帧（确保顺序正确）
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frames = frames.OrderBy(f => ExtractFrameNumber(f.name)).ThenBy(f => f.name).ToList();
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}
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catch (Exception e)
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{
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throw new Exception($"解析Aseprite JSON失败: {e.Message}\n{e.StackTrace}");
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}
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return new ProcessedAnimationData
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{
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frames = frames,
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animations = animations
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};
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}
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private static void ParseFramesContent(string framesContent, List<FrameData> frames)
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{
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int pos = 0;
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while (pos < framesContent.Length)
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{
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// 跳过空白字符和逗号
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while (pos < framesContent.Length && (char.IsWhiteSpace(framesContent[pos]) || framesContent[pos] == ','))
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pos++;
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if (pos >= framesContent.Length) break;
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// 查找帧名称（在引号中）
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if (framesContent[pos] != '"')
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{
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pos++;
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continue;
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}
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int nameStart = pos + 1;
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int nameEnd = framesContent.IndexOf('"', nameStart);
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if (nameEnd == -1) break;
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string frameName = framesContent.Substring(nameStart, nameEnd - nameStart);
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pos = nameEnd + 1;
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// 跳过冒号和空白
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while (pos < framesContent.Length && (char.IsWhiteSpace(framesContent[pos]) || framesContent[pos] == ':'))
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pos++;
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if (pos >= framesContent.Length) break;
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// 查找帧数据对象
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if (framesContent[pos] != '{')
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{
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continue;
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}
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int dataStart = pos;
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int dataEnd = FindMatchingBrace(framesContent, dataStart);
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if (dataEnd == -1) break;
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string frameDataJson = framesContent.Substring(dataStart, dataEnd - dataStart + 1);
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pos = dataEnd + 1;
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try
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{
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AsepriteFrameInfo frameInfo = JsonUtility.FromJson<AsepriteFrameInfo>(SanitizeJsonForUnity(frameDataJson));
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if (frameInfo.frame != null)
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{
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frames.Add(new FrameData
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{
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name = frameName,
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x = frameInfo.frame.x,
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y = frameInfo.frame.y,
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width = frameInfo.frame.w,
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height = frameInfo.frame.h,
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duration = frameInfo.duration
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});
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}
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}
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catch (Exception e)
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{
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Debug.LogWarning($"解析帧数据失败: {frameName}, 错误: {e.Message}");
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}
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}
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}
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private static int ExtractFrameNumber(string frameName)
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{
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// 尝试从帧名称中提取数字（例如 "调酒妹侧头 0.aseprite" -> 0）
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int lastSpace = frameName.LastIndexOf(' ');
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if (lastSpace >= 0 && lastSpace < frameName.Length - 1)
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{
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string numberPart = frameName.Substring(lastSpace + 1);
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int dotIndex = numberPart.IndexOf('.');
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if (dotIndex > 0)
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{
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numberPart = numberPart.Substring(0, dotIndex);
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}
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if (int.TryParse(numberPart, out int number))
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{
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return number;
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}
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}
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return int.MaxValue; // 如果无法解析，放在最后
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}
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/// <summary>
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/// Unity JsonUtility 不支持尾随逗号，Aseprite 导出时偶尔会带上。
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/// </summary>
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private static string SanitizeJsonForUnity(string json)
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{
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return Regex.Replace(json, @",(\s*[}\]])", "$1");
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}
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private static int FindMatchingBrace(string str, int startIndex)
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{
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if (startIndex < 0 || startIndex >= str.Length) return -1;
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int braceCount = 0;
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bool foundStart = false;
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for (int i = startIndex; i < str.Length; i++)
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{
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if (str[i] == '{')
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{
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braceCount++;
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foundStart = true;
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}
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else if (str[i] == '}')
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{
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braceCount--;
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if (braceCount == 0 && foundStart)
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{
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return i;
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}
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}
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}
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return -1;
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}
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// 解析手动JSON
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public static ProcessedAnimationData ParseManualJson(string jsonPath, string texturePath)
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{
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string jsonContent = File.ReadAllText(jsonPath);
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ManualJsonData manualData = JsonUtility.FromJson<ManualJsonData>(jsonContent);
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if (manualData.layout == null || manualData.animations == null)
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{
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throw new Exception("无效的手动JSON格式");
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}
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// 验证layout参数
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if (manualData.layout.rows <= 0 || manualData.layout.columns <= 0)
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{
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throw new Exception("rows和columns必须大于0");
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}
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// 读取图片尺寸
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TextureImporter textureImporter = AssetImporter.GetAtPath(texturePath) as TextureImporter;
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if (textureImporter == null)
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{
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throw new Exception($"无法加载纹理导入器: {texturePath}");
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}
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Texture2D texture = AssetDatabase.LoadAssetAtPath<Texture2D>(texturePath);
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if (texture == null)
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{
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throw new Exception($"无法加载纹理: {texturePath}");
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}
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int imageWidth = texture.width;
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int imageHeight = texture.height;
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// 计算sprite尺寸
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int spriteWidth = imageWidth / manualData.layout.columns;
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int spriteHeight = imageHeight / manualData.layout.rows;
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// 验证图片尺寸能被行列数整除
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if (imageWidth % manualData.layout.columns != 0 || imageHeight % manualData.layout.rows != 0)
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{
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throw new Exception($"图片尺寸({imageWidth}x{imageHeight})无法被行列数({manualData.layout.columns}x{manualData.layout.rows})整除");
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}
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// 计算总帧数
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int totalFrames = manualData.layout.frameCount ?? (manualData.layout.rows * manualData.layout.columns);
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if (totalFrames > manualData.layout.rows * manualData.layout.columns)
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{
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throw new Exception($"frameCount({totalFrames})不能超过rows*columns({manualData.layout.rows * manualData.layout.columns})");
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}
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// 生成帧数据
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List<FrameData> frames = new List<FrameData>();
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bool isHorizontal = manualData.layout.direction == "horizontal";
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for (int frameIndex = 0; frameIndex < totalFrames; frameIndex++)
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{
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int row, column;
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if (isHorizontal)
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{
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// 横向排列：按行扫描，从左到右，从上到下
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row = frameIndex / manualData.layout.columns;
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column = frameIndex % manualData.layout.columns;
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}
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else
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{
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// 纵向排列：按列扫描，从上到下，从左到右
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column = frameIndex / manualData.layout.rows;
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row = frameIndex % manualData.layout.rows;
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}
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// 使用左上角为(0,0)的坐标系，向右向下为正轴
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// 在SliceSprites中会统一转换为Unity的左下角坐标系
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int x = column * spriteWidth;
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int y = row * spriteHeight;
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frames.Add(new FrameData
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{
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name = $"frame_{frameIndex}",
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x = x,
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y = y,
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width = spriteWidth,
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height = spriteHeight,
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duration = manualData.frameDuration
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});
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}
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// 处理动画片段
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List<ProcessedAnimationClip> animations = new List<ProcessedAnimationClip>();
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foreach (var anim in manualData.animations)
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{
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// 应用参数覆盖逻辑
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float frameDuration = anim.frameDuration ?? manualData.frameDuration;
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int sampleRate = anim.sampleRate ?? manualData.sampleRate;
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animations.Add(new ProcessedAnimationClip
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{
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name = anim.name,
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frameIndices = anim.frameIndices,
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loop = anim.loop,
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frameDuration = frameDuration,
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sampleRate = sampleRate
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});
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}
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return new ProcessedAnimationData
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{
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frames = frames,
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animations = animations
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};
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}
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// 根据JSON信息切图
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public static void SliceSprites(string texturePath, List<FrameData> frames, Vector2 pivot)
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{
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TextureImporter textureImporter = AssetImporter.GetAtPath(texturePath) as TextureImporter;
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if (textureImporter == null)
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{
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throw new Exception($"无法加载纹理导入器: {texturePath}");
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}
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// 获取纹理尺寸
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Texture2D texture = AssetDatabase.LoadAssetAtPath<Texture2D>(texturePath);
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if (texture == null)
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{
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throw new Exception($"无法加载纹理: {texturePath}");
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}
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int textureHeight = texture.height;
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// 设置spriteMode为Multiple
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textureImporter.spriteImportMode = SpriteImportMode.Multiple;
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// 使用新的Sprite Editor Data Provider API (Unity 2020.2+)
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var spriteDataProviderFactories = new SpriteDataProviderFactories();
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spriteDataProviderFactories.Init();
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var dataProvider = spriteDataProviderFactories.GetSpriteEditorDataProviderFromObject(textureImporter);
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if (dataProvider == null)
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{
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throw new Exception($"无法获取Sprite Editor Data Provider: {texturePath}");
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}
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dataProvider.InitSpriteEditorDataProvider();
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// 创建SpriteRect数组
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// 注意：JSON中的坐标是以左上角为(0,0)，向右向下为正轴
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// Unity的纹理坐标系统是左下角为(0,0)，向上为正轴
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// 需要将Y坐标从左上角坐标系转换为Unity的左下角坐标系
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var spriteRects = new SpriteRect[frames.Count];
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for (int i = 0; i < frames.Count; i++)
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{
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var frame = frames[i];
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// 坐标转换：从左上角(0,0)坐标系转换为Unity左下角(0,0)坐标系
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// Unity Y = 纹理高度 - (原始Y + 高度)
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float unityY = textureHeight - (frame.y + frame.height);
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// 根据 pivot 值确定 alignment
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SpriteAlignment alignment = SpriteAlignment.Custom;
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if (pivot == new Vector2(0.5f, 0.5f))
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alignment = SpriteAlignment.Center;
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else if (pivot == new Vector2(0f, 1f))
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alignment = SpriteAlignment.TopLeft;
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else if (pivot == new Vector2(1f, 1f))
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alignment = SpriteAlignment.TopRight;
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else if (pivot == new Vector2(0f, 0f))
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alignment = SpriteAlignment.BottomLeft;
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else if (pivot == new Vector2(1f, 0f))
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alignment = SpriteAlignment.BottomRight;
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else if (pivot == new Vector2(0.5f, 1f))
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alignment = SpriteAlignment.TopCenter;
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else if (pivot == new Vector2(0.5f, 0f))
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alignment = SpriteAlignment.BottomCenter;
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else if (pivot == new Vector2(0f, 0.5f))
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alignment = SpriteAlignment.LeftCenter;
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else if (pivot == new Vector2(1f, 0.5f))
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alignment = SpriteAlignment.RightCenter;
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spriteRects[i] = new SpriteRect
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{
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name = frame.name,
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rect = new Rect(frame.x, unityY, frame.width, frame.height),
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pivot = pivot,
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alignment = alignment
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};
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}
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dataProvider.SetSpriteRects(spriteRects);
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dataProvider.Apply();
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AssetDatabase.ImportAsset(texturePath, ImportAssetOptions.ForceUpdate);
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}
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// 创建或更新 AnimationClip（若已存在则在原资源上就地更新，避免引用丢失）
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public static AnimationClip CreateAnimationClip(
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ProcessedAnimationClip animationData,
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List<FrameData> frames,
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Sprite[] sprites,
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string outputPath,
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bool isImageAnimation = false)
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{
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// 先计算目标资源路径
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string fullPath = Path.Combine(outputPath, $"{animationData.name}.anim");
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string assetPath = fullPath.Replace('\\', '/');
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if (!assetPath.StartsWith("Assets/"))
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{
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// 转换为相对路径
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string projectPath = Application.dataPath.Replace("Assets", "");
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if (assetPath.StartsWith(projectPath))
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{
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assetPath = assetPath.Substring(projectPath.Length);
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}
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}
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// 如果已经存在同名 AnimationClip，则复用该资源，在其上就地更新
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AnimationClip clip = AssetDatabase.LoadAssetAtPath<AnimationClip>(assetPath);
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bool isNewClip = false;
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if (clip == null)
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{
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clip = new AnimationClip();
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isNewClip = true;
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}
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clip.name = animationData.name;
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// 设置采样率
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AnimationClipSettings settings = AnimationUtility.GetAnimationClipSettings(clip);
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clip.frameRate = animationData.sampleRate;
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// 创建Sprite关键帧
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List<ObjectReferenceKeyframe> keyframes = new List<ObjectReferenceKeyframe>();
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float currentTime = 0f;
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foreach (int frameIndex in animationData.frameIndices)
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{
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if (frameIndex < 0 || frameIndex >= sprites.Length)
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{
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Debug.LogWarning($"帧索引{frameIndex}超出范围，跳过");
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continue;
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}
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Sprite sprite = sprites[frameIndex];
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if (sprite == null)
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{
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Debug.LogWarning($"帧索引{frameIndex}的Sprite为空，跳过");
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continue;
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}
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// 使用帧的duration（如果是Aseprite格式）或动画的frameDuration（手动格式）
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float frameDuration = frames[frameIndex].duration > 0
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? frames[frameIndex].duration / 1000f // 毫秒转秒
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: animationData.frameDuration / 1000f;
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keyframes.Add(new ObjectReferenceKeyframe
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{
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time = currentTime,
|
||
value = sprite
|
||
});
|
||
|
||
currentTime += frameDuration;
|
||
}
|
||
|
||
if (keyframes.Count == 0)
|
||
{
|
||
throw new Exception($"动画片段{animationData.name}没有有效的关键帧");
|
||
}
|
||
|
||
// 设置循环
|
||
if (animationData.loop && keyframes.Count > 1)
|
||
{
|
||
// 添加最后一帧的重复，确保循环
|
||
keyframes.Add(new ObjectReferenceKeyframe
|
||
{
|
||
time = currentTime,
|
||
value = keyframes[^1].value
|
||
});
|
||
}
|
||
|
||
// 创建EditorCurveBinding - 根据动画类型选择不同的组件
|
||
EditorCurveBinding curveBinding = new EditorCurveBinding
|
||
{
|
||
path = "",
|
||
type = isImageAnimation ? typeof(UnityEngine.UI.Image) : typeof(SpriteRenderer),
|
||
propertyName = "m_Sprite"
|
||
};
|
||
|
||
// 设置曲线
|
||
AnimationUtility.SetObjectReferenceCurve(clip, curveBinding, keyframes.ToArray());
|
||
|
||
// 设置循环
|
||
settings.loopTime = animationData.loop;
|
||
AnimationUtility.SetAnimationClipSettings(clip, settings);
|
||
|
||
// 强制更新动画长度 (m_StopTime) - 修复复用已有 clip 时长度未更新的问题
|
||
float totalDuration = keyframes.Count > 0 ? keyframes[keyframes.Count - 1].time : 0f;
|
||
SerializedObject serializedClip = new SerializedObject(clip);
|
||
SerializedProperty nestedStopTimeProp = serializedClip.FindProperty("m_AnimationClipSettings.m_StopTime");
|
||
if (nestedStopTimeProp != null)
|
||
{
|
||
nestedStopTimeProp.floatValue = totalDuration;
|
||
serializedClip.ApplyModifiedProperties();
|
||
}
|
||
|
||
// 保存 / 更新 AnimationClip 资源
|
||
if (isNewClip)
|
||
{
|
||
// 不存在则创建新资源
|
||
AssetDatabase.CreateAsset(clip, assetPath);
|
||
}
|
||
else
|
||
{
|
||
// 已存在则标记为已修改，保持原 GUID 与引用
|
||
EditorUtility.SetDirty(clip);
|
||
}
|
||
|
||
AssetDatabase.SaveAssets();
|
||
|
||
return clip;
|
||
}
|
||
|
||
// 主流程：生成AnimationClip
|
||
public static void GenerateClips(string texturePath, string jsonPath, string outputPath, bool isImageAnimation = false, Vector2 pivot = default)
|
||
{
|
||
// 如果没有提供 pivot，使用默认值（中心）
|
||
if (pivot == default)
|
||
{
|
||
pivot = new Vector2(0.5f, 0.5f);
|
||
}
|
||
// 确保 pivot 值在有效范围内
|
||
pivot.x = Mathf.Clamp01(pivot.x);
|
||
pivot.y = Mathf.Clamp01(pivot.y);
|
||
try
|
||
{
|
||
EditorUtility.DisplayProgressBar("生成AnimationClip", "检查SpriteMode...", 0f);
|
||
|
||
// 检查SpriteMode
|
||
SpriteImportMode spriteMode = CheckSpriteMode(texturePath);
|
||
if (spriteMode == SpriteImportMode.Multiple)
|
||
{
|
||
Debug.Log("图片的SpriteMode已经是Multiple，将使用现有的Sprite切图");
|
||
}
|
||
|
||
EditorUtility.DisplayProgressBar("生成AnimationClip", "解析JSON...", 0.2f);
|
||
|
||
// 判断JSON类型并解析
|
||
ProcessedAnimationData processedData;
|
||
string jsonContent = File.ReadAllText(jsonPath);
|
||
|
||
if (jsonContent.Contains("\"type\":\"manual\"") || jsonContent.Contains("\"type\": \"manual\""))
|
||
{
|
||
// 手动格式
|
||
processedData = ParseManualJson(jsonPath, texturePath);
|
||
}
|
||
else
|
||
{
|
||
// Aseprite格式
|
||
processedData = ParseAsepriteJson(jsonPath, texturePath);
|
||
}
|
||
|
||
// Debug.Log($"processedData: {processedData.ToString()}");
|
||
|
||
EditorUtility.DisplayProgressBar("生成AnimationClip", "切图...", 0.4f);
|
||
|
||
// 如果是Single模式，需要切图
|
||
if (spriteMode == SpriteImportMode.Single)
|
||
{
|
||
SliceSprites(texturePath, processedData.frames, pivot);
|
||
// 重新加载以确保sprites可用
|
||
AssetDatabase.Refresh();
|
||
}
|
||
|
||
EditorUtility.DisplayProgressBar("生成AnimationClip", "加载Sprites...", 0.6f);
|
||
|
||
// 加载所有Sprites
|
||
Sprite[] allSpritesArray = AssetDatabase.LoadAllAssetsAtPath(texturePath)
|
||
.OfType<Sprite>()
|
||
.ToArray();
|
||
|
||
if (allSpritesArray.Length == 0)
|
||
{
|
||
throw new Exception("无法加载任何Sprite，请检查切图设置");
|
||
}
|
||
|
||
// 创建Sprite字典以便快速查找
|
||
Dictionary<string, Sprite> spriteDict = allSpritesArray.ToDictionary(s => s.name, s => s);
|
||
|
||
// 按照frames列表的顺序创建Sprite数组
|
||
Sprite[] allSprites = new Sprite[processedData.frames.Count];
|
||
for (int i = 0; i < processedData.frames.Count; i++)
|
||
{
|
||
string frameName = processedData.frames[i].name;
|
||
if (spriteDict.TryGetValue(frameName, out Sprite sprite))
|
||
{
|
||
allSprites[i] = sprite;
|
||
}
|
||
else
|
||
{
|
||
Debug.LogWarning($"找不到名为{frameName}的Sprite");
|
||
// 尝试使用索引查找
|
||
if (i < allSpritesArray.Length)
|
||
{
|
||
allSprites[i] = allSpritesArray[i];
|
||
}
|
||
}
|
||
}
|
||
|
||
// 确保输出目录存在
|
||
if (!Directory.Exists(outputPath))
|
||
{
|
||
Directory.CreateDirectory(outputPath);
|
||
}
|
||
|
||
EditorUtility.DisplayProgressBar("生成AnimationClip", "创建AnimationClip...", 0.8f);
|
||
|
||
// 为每个动画片段创建AnimationClip
|
||
int animationCount = processedData.animations.Count;
|
||
for (int i = 0; i < animationCount; i++)
|
||
{
|
||
var anim = processedData.animations[i];
|
||
EditorUtility.DisplayProgressBar("生成AnimationClip",
|
||
$"创建动画片段: {anim.name}", 0.8f + (i / (float)animationCount) * 0.2f);
|
||
|
||
CreateAnimationClip(anim, processedData.frames, allSprites, outputPath, isImageAnimation);
|
||
}
|
||
|
||
EditorUtility.ClearProgressBar();
|
||
Debug.Log($"成功生成{animationCount}个AnimationClip到: {outputPath}");
|
||
}
|
||
catch (Exception e)
|
||
{
|
||
EditorUtility.ClearProgressBar();
|
||
Debug.LogError($"生成AnimationClip失败: {e.Message}");
|
||
throw;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|