Unity 制作字体

使用BMFont的方式，目的是得到fnt文件，实际上是xml格式文件。

<font> <info face="font" size="80" /> <common lineHeight="80" scaleW="122" scaleH="114" pages="1" /> <pages> <page id="0" file="font.png" /> </pages> <chars count="13"> <char id="48" x="32" y="0" width="31" height="37" xoffset="0" yoffset="43" xadvance="32" /><!-- 0 --> <char id="49" x="64" y="76" width="28" height="37" xoffset="0" yoffset="43" xadvance="29" /><!-- 1 --> <char id="50" x="32" y="76" width="31" height="37" xoffset="0" yoffset="43" xadvance="32" /><!-- 2 --> <char id="51" x="64" y="38" width="30" height="37" xoffset="0" yoffset="43" xadvance="31" /><!-- 3 --> <char id="52" x="64" y="0" width="31" height="37" xoffset="0" yoffset="43" xadvance="32" /><!-- 4 --> <char id="53" x="0" y="0" width="31" height="37" xoffset="0" yoffset="43" xadvance="32" /><!-- 5 --> <char id="54" x="32" y="38" width="31" height="37" xoffset="0" yoffset="43" xadvance="32" /><!-- 6 --> <char id="55" x="93" y="76" width="28" height="37" xoffset="0" yoffset="43" xadvance="29" /><!-- 7 --> <char id="56" x="0" y="76" width="31" height="37" xoffset="0" yoffset="43" xadvance="32" /><!-- 8 --> <char id="57" x="0" y="38" width="31" height="37" xoffset="0" yoffset="43" xadvance="32" /><!-- 9 --> <char id="58" x="95" y="38" width="20" height="30" xoffset="0" yoffset="50" xadvance="21" /><!-- : --> <char id="32" x="0" y="0" width="0" height="0" xoffset="0" yoffset="0" xadvance="20" /><!-- --> <char id="9" x="0" y="0" width="0" height="0" xoffset="0" yoffset="0" xadvance="160" /><!-- --> </chars> <kernings count="0"> </kernings> </font>

得到图集个fnt文件后，网上一般的方法是手动计算在Unity中的参数，有些繁琐，在这里写一个Editor脚本来自动完成这个过程。直接上代码：

using System; using System.Collections.Generic; using System.IO; using System.Xml; using UnityEditor; using UnityEngine; public class CreateFontFromFnt : EditorWindow { [MenuItem("Tools/创建字体(Fnt)")] static void DoIt() { GetWindow<CreateFontFromFnt>("创建字体"); } private string fontName; private string fontPath; private Texture2D tex; private string fntFilePath; private void OnGUI() { GUILayout.BeginVertical(); GUILayout.BeginHorizontal(); GUILayout.Label("字体名称："); fontName = EditorGUILayout.TextField(fontName); GUILayout.EndHorizontal(); GUILayout.BeginHorizontal(); GUILayout.Label("字体图片："); tex = (Texture2D)EditorGUILayout.ObjectField(tex, typeof(Texture2D), true); GUILayout.EndHorizontal(); GUILayout.BeginHorizontal(); if (GUILayout.Button(string.IsNullOrEmpty(fontPath) ? "选择存储字体路径" : fontPath)) { fontPath = EditorUtility.OpenFolderPanel("字体路径", Application.dataPath, ""); if (string.IsNullOrEmpty(fontPath)) { Debug.Log("取消选择路径"); } else { fontPath = fontPath.Replace(Application.dataPath, "") + "/"; } } GUILayout.EndHorizontal(); GUILayout.BeginHorizontal(); if (GUILayout.Button(string.IsNullOrEmpty(fntFilePath) ? "选择fnt文件" : fntFilePath)) { //桌面路径：Environment.GetFolderPath(Environment.SpecialFolder.Desktop fntFilePath = EditorUtility.OpenFilePanelWithFilters("选择fnt文件", Application.dataPath, new string[] { "", "fnt" }); if (string.IsNullOrEmpty(fntFilePath)) { Debug.Log("取消选择路径"); } } GUILayout.EndHorizontal(); GUILayout.BeginHorizontal(); if (GUILayout.Button("创建")) { Create(); } GUILayout.EndHorizontal(); GUILayout.EndVertical(); } private void Create() { if (string.IsNullOrEmpty(fntFilePath)) { Debug.LogError("fnt为空"); return; } if (tex == null) { Debug.LogError("字体图片为空"); return; } string fontSettingPath = fontPath + fontName + ".fontsettings"; string matPath = fontPath + fontName + ".mat"; if (File.Exists(Application.dataPath + fontSettingPath)) { Debug.LogErrorFormat("已存在同名字体文件:｛0}", fontSettingPath); return; } if (File.Exists(Application.dataPath + matPath)) { Debug.LogErrorFormat("已存在同名字体材质:｛0}", matPath); return; } var list = new List<CharacterInfo>(); XmlDocument xmlDoc = new XmlDocument(); var content = File.ReadAllText(fntFilePath, System.Text.Encoding.UTF8); xmlDoc.LoadXml(content); var nodelist = xmlDoc.SelectNodes("font/chars/char"); foreach (XmlElement item in nodelist) { CharacterInfo info = new CharacterInfo(); var id = int.Parse(item.GetAttribute("id")); var x = float.Parse(item.GetAttribute("x")); var y = float.Parse(item.GetAttribute("y")); var width = float.Parse(item.GetAttribute("width")); var height = float.Parse(item.GetAttribute("height")); info.index = id; //纹理映射，上下翻转 info.uvBottomLeft = new Vector2(x / tex.width, 1 - (y + height) / tex.height); info.uvBottomRight = new Vector2((x + width) / tex.width, 1 - (y + height) / tex.height); info.uvTopLeft = new Vector2(x / tex.width, 1 - y / tex.height); info.uvTopRight = new Vector2((x + width) / tex.width, 1 - y / tex.height); info.minX = 0; info.maxX = (int)width; info.minY = -(int)height / 2; info.maxY = (int)height / 2; info.advance = (int)width; list.Add(info); } Material mat = new Material(Shader.Find("GUI/Text Shader")); mat.SetTexture("_MainTex", tex); Font m_myFont = new Font(); m_myFont.material = mat; AssetDatabase.CreateAsset(mat, "Assets" + matPath); AssetDatabase.CreateAsset(m_myFont, "Assets" + fontSettingPath); m_myFont.characterInfo = list.ToArray(); EditorUtility.SetDirty(m_myFont); AssetDatabase.SaveAssets(); AssetDatabase.Refresh(); Debug.Log("创建成功！"); } }