using System.Collections.Generic;
using System.IO;
using System.Xml;
using UnityEditor;
using UnityEngine;public class BMFont : EditorWindow
{private TextAsset _fontTextAsset;private Texture _fontTexture;private string _fontsDir;[MenuItem("CTools/BMFont", false, 12)]private static void BMFontTools(){BMFont bmFont = new BMFont();bmFont.Show();}private string _getAssetPath(string path){string pathTemp = path.Replace("\\", "/");pathTemp = pathTemp.Replace(Application.dataPath, "Assets");return pathTemp;}void OnGUI(){EditorGUILayout.BeginVertical();TextAsset taTemp = EditorGUILayout.ObjectField("选择Font文件：", _fontTextAsset, typeof(TextAsset), true) as TextAsset;if (taTemp != _fontTextAsset && taTemp != null){string assetDir = Directory.GetParent(AssetDatabase.GetAssetPath(taTemp)).FullName;assetDir = _getAssetPath(assetDir);string imgPath = string.Format("{0}/{1}_0.png", assetDir, taTemp.name);_fontTexture = AssetDatabase.LoadAssetAtPath<Texture>(imgPath);_fontsDir = string.Format("{0}.fontsettings", Path.Combine(assetDir, taTemp.name));if (_fontTexture == null){_fontsDir = string.Empty;Debug.LogError(string.Format("未发现{0}文件", imgPath));}}_fontTextAsset = taTemp;_fontTexture = EditorGUILayout.ObjectField("选择Font图片文件：", _fontTexture, typeof(Texture), true) as Texture;GUI.enabled = false;_fontsDir = EditorGUILayout.TextField("字体生成路径:", _fontsDir);GUI.enabled = true;if (GUILayout.Button("Generate Font")){if (!string.IsNullOrEmpty(_fontsDir)){Material mat = AssetDatabase.LoadAssetAtPath<Material>(_fontsDir.Replace(".fontsettings", ".mat"));if (mat == null){mat = new Material(Shader.Find("UI/Default Font"));AssetDatabase.CreateAsset(mat, _fontsDir.Replace(".fontsettings", ".mat"));}if (_fontTexture != null){mat = AssetDatabase.LoadAssetAtPath<Material>(_fontsDir.Replace(".fontsettings", ".mat"));mat.SetTexture("_MainTex", _fontTexture);}else{Debug.LogError("贴图未做配置，请检查配置");return;}Font font = AssetDatabase.LoadAssetAtPath<Font>(_fontsDir);if (font == null){font = new Font();AssetDatabase.CreateAsset(font, _fontsDir);}_setFontInfo(AssetDatabase.LoadAssetAtPath<Font>(_fontsDir),AssetDatabase.GetAssetPath(_fontTextAsset),_fontTexture);font = AssetDatabase.LoadAssetAtPath<Font>(_fontsDir);font.material = mat;}else{Debug.LogError("创建失败，请检查配置");}}EditorGUILayout.EndVertical();}private void _setFontInfo(Font font, string fontConfig, Texture texture){XmlDocument xml = new XmlDocument();xml.Load(fontConfig);List<CharacterInfo> chtInfoList = new List<CharacterInfo>();XmlNode node = xml.SelectSingleNode("font/chars");foreach (XmlNode nd in node.ChildNodes){XmlElement xe = (XmlElement)nd;int x = int.Parse(xe.GetAttribute("x"));int y = int.Parse(xe.GetAttribute("y"));int width = int.Parse(xe.GetAttribute("width"));int height = int.Parse(xe.GetAttribute("height"));int advance = int.Parse(xe.GetAttribute("xadvance"));CharacterInfo info = new CharacterInfo();info.glyphHeight = texture.height;info.glyphWidth = texture.width;info.index = int.Parse(xe.GetAttribute("id"));//这里注意下UV坐标系和从BMFont里得到的信息的坐标系是不一样的哦，前者左下角为（0,0），//右上角为（1,1）。而后者则是左上角上角为（0,0），右下角为（图宽，图高）info.uvTopLeft = new Vector2((float)x / texture.width, 1 - (float)y / texture.height);info.uvTopRight = new Vector2((float)(x + width) / texture.width, 1 - (float)y / texture.height);info.uvBottomLeft = new Vector2((float)x / texture.width, 1 - (float)(y + height) / texture.height);info.uvBottomRight = new Vector2((float)(x + width) / texture.width, 1 - (float)(y + height) / texture.height);info.minX = 0;info.minY = -height;info.maxX = width;info.maxY = 0;info.advance = advance;chtInfoList.Add(info);}font.characterInfo = chtInfoList.ToArray();AssetDatabase.Refresh();}
}