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下载Bitmap Font Generator

BMFont - AngelCode.com

解压后不用安装直接双击使用

提前设置

1、设置Bit depth为32

Options->Export options

2、清空所选字符

因为我们将在后边导入需要的字符。

Edit->Select all chars  先选择所有字符

Edit->Clear all chars in font  再清空所有字符

配置字符

1、打开Open Image Manager

Edit->Open Image Manager

2、配置字符和对应的字符图片

先准备这些字符的ASCII码

可以通过在线工具查询：ASCII编码转换，ASCII码在线查询工具

字符	ASCII码
0	48
1	49
2	50
3	51
4	52
5	53
6	54
7	55
8	56
9	57
.	46
+	43
-	45
K	75
M	77
G	71

点击Image->Import image,开始配置

返回主界面，查看标有小亮点的字符为已配置成功的字符

导出文件

导出前可以预览一下 Options->Visualize

直接导出

Options->Save bitmap font as....

导出成功

导入Unity使用

创建下面两个脚本，将其放到Editor文件夹下

using UnityEngine;
using UnityEditor;
using System;
using System.IO;public class BFImporter : AssetPostprocessor
{static void OnPostprocessAllAssets(string[] importedAssets, string[] deletedAssets, string[] movedAssets, string[] movedFromAssetPaths){foreach (string str in importedAssets){DoImportBitmapFont(str);}foreach (string str in deletedAssets){DelBitmapFont(str);}for (var i = 0; i < movedAssets.Length; i++){MoveBitmapFont(movedFromAssetPaths[i], movedAssets[i]);}}public static bool IsFnt(string path){return path.EndsWith(".fnt", StringComparison.OrdinalIgnoreCase);}public static void DoImportBitmapFont(string fntPath){if (!IsFnt(fntPath)) return;TextAsset fnt = AssetDatabase.LoadMainAssetAtPath(fntPath) as TextAsset;string text = fnt.text;FntParse parse = FntParse.GetFntParse(ref text);if (parse == null) return;string fntName = Path.GetFileNameWithoutExtension(fntPath);string rootPath = Path.GetDirectoryName(fntPath);string fontPath = string.Format("{0}/{1}.fontsettings", rootPath, fntName);Texture2D[] textures = DoImportTextures(parse, rootPath, fnt);if (textures.Length > 1){Debug.LogError(fntPath + " has more than one texture!");}Font font = AssetDatabase.LoadMainAssetAtPath(fontPath) as Font;if (font == null){font = new Font();AssetDatabase.CreateAsset(font, fontPath);AssetDatabase.WriteImportSettingsIfDirty(fontPath);AssetDatabase.ImportAsset(fontPath);}Material material = AssetDatabase.LoadAssetAtPath(fontPath, typeof(Material)) as Material;if (material == null){material = new Material(Shader.Find("UI/Default"));material.name = "Font Material";AssetDatabase.AddObjectToAsset(material, fontPath);// unity 5.4+ cannot refresh it immediately, must import itAssetDatabase.ImportAsset(fontPath);}font.material = material;material.mainTexture = textures[0];font.characterInfo = parse.charInfos;SerializedObject so = new SerializedObject(font);so.Update();so.FindProperty("m_FontSize").floatValue = Mathf.Abs(parse.fontSize);so.FindProperty("m_LineSpacing").floatValue = parse.lineHeight;so.FindProperty("m_Ascent").floatValue = parse.lineBaseHeight;SerializedProperty prop = so.FindProperty("m_Descent");if (prop != null)prop.floatValue = parse.lineBaseHeight - parse.lineHeight;UpdateKernings(so, parse.kernings);so.ApplyModifiedProperties();so.SetIsDifferentCacheDirty();AssetDatabase.DeleteAsset(fntPath);AssetDatabase.SaveAssets();// unity 5.5 can not load custom fontReloadFont(fontPath);}private static Texture2D[] DoImportTextures(FntParse parse, string rootPath, TextAsset fnt){int len = parse.textureNames.Length;Texture2D[] textures = new Texture2D[len];for (int i = 0; i < len; i++){string texPath = string.Format("{0}/{1}", rootPath, parse.textureNames[i]);Texture2D texture = AssetDatabase.LoadMainAssetAtPath(texPath) as Texture2D;if (texture == null){Debug.LogErrorFormat(fnt, "{0}: not found '{1}'.", typeof(BFImporter), texPath);return textures;}TextureImporter texImporter = AssetImporter.GetAtPath(texPath) as TextureImporter;texImporter.textureType = TextureImporterType.GUI;texImporter.mipmapEnabled = false;texImporter.SaveAndReimport();textures[i] = texture;}return textures;}private static void UpdateKernings(SerializedObject so, Kerning[] kernings){int len = kernings != null ? kernings.Length : 0;SerializedProperty kerningsProp = so.FindProperty("m_KerningValues");if (len == 0){kerningsProp.ClearArray();return;}int propLen = kerningsProp.arraySize;for (int i = 0; i < len; i++){if (propLen <= i){kerningsProp.InsertArrayElementAtIndex(i);}SerializedProperty kerningProp = kerningsProp.GetArrayElementAtIndex(i);kerningProp.FindPropertyRelative("second").floatValue = kernings[i].amount;SerializedProperty pairProp = kerningProp.FindPropertyRelative("first");pairProp.Next(true);pairProp.intValue = kernings[i].first;pairProp.Next(false);pairProp.intValue = kernings[i].second;}for (int i = propLen - 1; i >= len; i--){kerningsProp.DeleteArrayElementAtIndex(i);}}private static void DelBitmapFont(string fntPath){if (!IsFnt(fntPath)) return;string fontPath = fntPath.Substring(0, fntPath.Length - 4) + ".fontsettings";AssetDatabase.DeleteAsset(fontPath);}private static void MoveBitmapFont(string oldFntPath, string nowFntPath){if (!IsFnt(nowFntPath)) return;string oldFontPath = oldFntPath.Substring(0, oldFntPath.Length - 4) + ".fontsettings";string nowFontPath = nowFntPath.Substring(0, nowFntPath.Length - 4) + ".fontsettings";AssetDatabase.MoveAsset(oldFontPath, nowFontPath);}// new font can not display via Text in unity 5.5// must import import itprivate static void ReloadFont(string fontPath){var tmpPath = Path.Combine(Path.GetTempPath(), Path.GetRandomFileName());AssetDatabase.ExportPackage(fontPath, tmpPath);AssetDatabase.DeleteAsset(fontPath);var startTime = DateTime.Now;EditorApplication.CallbackFunction func = null;func = () =>{TimeSpan dalt = DateTime.Now - startTime;if (dalt.TotalSeconds >= 0.1){EditorApplication.update -= func;AssetDatabase.ImportPackage(tmpPath, false);File.Delete(tmpPath);}};EditorApplication.update += func;}
}

using UnityEngine;
using System.Xml;
using System;
using System.Collections.Generic;
using System.Text.RegularExpressions;public struct Kerning
{public int first;public int second;public int amount;
}public class FntParse
{public int textureWidth;public int textureHeight;public string[] textureNames;public string fontName;public int fontSize;public int lineHeight;public int lineBaseHeight;public CharacterInfo[] charInfos { get; private set; }public Kerning[] kernings { get; private set; }public static FntParse GetFntParse(ref string text){FntParse parse = null;if (text.StartsWith("info")){parse = new FntParse();parse.DoTextParse(ref text);}else if (text.StartsWith("<")){parse = new FntParse();parse.DoXMLPase(ref text);}return parse;}#region xmlpublic void DoXMLPase(ref string content){XmlDocument xml = new XmlDocument();xml.LoadXml(content);XmlNode info = xml.GetElementsByTagName("info")[0];XmlNode common = xml.GetElementsByTagName("common")[0];XmlNodeList pages = xml.GetElementsByTagName("pages")[0].ChildNodes;XmlNodeList chars = xml.GetElementsByTagName("chars")[0].ChildNodes;fontName = info.Attributes.GetNamedItem("face").InnerText;fontSize = ToInt(info, "size");lineHeight = ToInt(common, "lineHeight");lineBaseHeight = ToInt(common, "base");textureWidth = ToInt(common, "scaleW");textureHeight = ToInt(common, "scaleH");int pageNum = ToInt(common, "pages");textureNames = new string[pageNum];for (int i = 0; i < pageNum; i++){XmlNode page = pages[i];int pageId = ToInt(page, "id");textureNames[pageId] = page.Attributes.GetNamedItem("file").InnerText;}charInfos = new CharacterInfo[chars.Count];for (int i = 0; i < chars.Count; i++){XmlNode charNode = chars[i];charInfos[i] = CreateCharInfo(ToInt(charNode, "id"),ToInt(charNode, "x"),ToInt(charNode, "y"),ToInt(charNode, "width"),ToInt(charNode, "height"),ToInt(charNode, "xoffset"),ToInt(charNode, "yoffset"),ToInt(charNode, "xadvance"),ToInt(charNode, "page"));}// kerningsXmlNode kerningsNode = xml.GetElementsByTagName("kernings")[0];if (kerningsNode != null && kerningsNode.HasChildNodes){XmlNodeList kerns = kerningsNode.ChildNodes;kernings = new Kerning[kerns.Count];for (int i = 0; i < kerns.Count; i++){XmlNode kerningNode = kerns[i];kernings[i] = new Kerning();kernings[i].first = ToInt(kerningNode, "first");kernings[i].second = ToInt(kerningNode, "second");kernings[i].amount = ToInt(kerningNode, "amount");}}}private static int ToInt(XmlNode node, string name){return int.Parse(node.Attributes.GetNamedItem(name).InnerText);}#endregion#region textprivate Regex pattern;public void DoTextParse(ref string content){// letter=" "       // \S+=".+?"// letter="x"       // \S+=".+?"// letter="""       // \S+=".+?"// letter=""        // \S+// char             // \S+pattern = new Regex(@"\S+="".+?""|\S+");string[] lines = content.Split(new char[] { '\r', '\n' }, StringSplitOptions.RemoveEmptyEntries);ReadTextInfo(ref lines[0]);ReadTextCommon(ref lines[1]);for (int j = 0; j < textureNames.Length; j++){ReadTextPage(ref lines[j + 2]);}// don't use count of chars, count is incorrect if has space //ReadTextCharCount(ref lines[3]);List<CharacterInfo> list = new List<CharacterInfo>();int i = 2 + textureNames.Length;int l = lines.Length;for (; i < l; i++){if (!ReadTextChar(i - 4, ref lines[i], ref list))break;}charInfos = list.ToArray();// skip empty linefor (; i < l; i++){if (lines[i].Length > 0)break;}// kerningsif (i < l){int count = 0;if (ReadTextCount(ref lines[i++], out count)){int start = i;kernings = new Kerning[count];for (; i < l; i++){if (!ReadTextKerning(i - start, ref lines[i], ref list))break;}};}}private void ReadTextInfo(ref string line){string[] keys;string[] values;SplitParts(line, out keys, out values);for (int i = keys.Length - 1; i >= 0; i--){switch (keys[i]){case "face": fontName = values[i]; break;case "size": fontSize = int.Parse(values[i]); break;}}}private void ReadTextCommon(ref string line){string[] keys;string[] values;SplitParts(line, out keys, out values);for (int i = keys.Length - 1; i >= 0; i--){switch (keys[i]){case "lineHeight": lineHeight = int.Parse(values[i]); break;case "base": lineBaseHeight = int.Parse(values[i]); break;case "scaleW": textureWidth = int.Parse(values[i]); break;case "scaleH": textureHeight = int.Parse(values[i]); break;case "pages": textureNames = new string[int.Parse(values[i])]; break;}}}private void ReadTextPage(ref string line){string[] keys;string[] values;SplitParts(line, out keys, out values);string textureName = null;int pageId = -1;for (int i = keys.Length - 1; i >= 0; i--){switch (keys[i]){case "file": textureName = values[i]; break;case "id": pageId = int.Parse(values[i]); break;}}textureNames[pageId] = textureName;}private bool ReadTextCount(ref string line, out int count){string[] keys;string[] values;SplitParts(line, out keys, out values);count = 0;for (int i = keys.Length - 1; i >= 0; i--){switch (keys[i]){case "count":count = int.Parse(values[i]);return true;}}return false;}private bool ReadTextChar(int idx, ref string line, ref List<CharacterInfo> list){if (!line.StartsWith("char")) return false;string[] keys;string[] values;SplitParts(line, out keys, out values);int id = 0, x = 0, y = 0, w = 0, h = 0, xo = 0, yo = 0, xadvance = 0;for (int i = keys.Length - 1; i >= 0; i--){switch (keys[i]){case "id": id = int.Parse(values[i]); break;case "x": x = int.Parse(values[i]); break;case "y": y = int.Parse(values[i]); break;case "width": w = int.Parse(values[i]); break;case "height": h = int.Parse(values[i]); break;case "xoffset": xo = int.Parse(values[i]); break;case "yoffset": yo = int.Parse(values[i]); break;case "xadvance": xadvance = int.Parse(values[i]); break;}}list.Add(CreateCharInfo(id, x, y, w, h, xo, yo, xadvance));return true;}private bool ReadTextKerning(int idx, ref string line, ref List<CharacterInfo> list){if (!line.StartsWith("kerning")) return false;string[] keys;string[] values;SplitParts(line, out keys, out values);Kerning kerning = new Kerning();for (int i = keys.Length - 1; i >= 0; i--){switch (keys[i]){case "first": kerning.first = int.Parse(values[i]); break;case "second": kerning.second = int.Parse(values[i]); break;case "amount": kerning.amount = int.Parse(values[i]); break;}}kernings[idx] = kerning;return true;}private bool SplitParts(string line, out string[] keys, out string[] values){MatchCollection parts = pattern.Matches(line);int count = parts.Count;keys = new string[count - 1];values = new string[count - 1];for (int i = count - 2; i >= 0; i--){string part = parts[i + 1].Value;int pos = part.IndexOf('=');keys[i] = part.Substring(0, pos);values[i] = part.Substring(pos + 1).Trim('"');}return true;}#endregionprivate CharacterInfo CreateCharInfo(int id, int x, int y, int w, int h, int xo, int yo, int xadvance, int page = 0){Rect uv = new Rect();uv.x = (float)x / textureWidth + page;uv.y = (float)y / textureHeight;uv.width = (float)w / textureWidth;uv.height = (float)h / textureHeight;uv.y = 1f - uv.y - uv.height;Rect vert = new Rect();vert.x = xo;
#if UNITY_5_0 || UNITY_5_1 || UNITY_5_2// unity 5.0 can not support baseline for vert.y = yo;
#elsevert.y = yo - lineBaseHeight;
#endifvert.width = w;vert.height = h;vert.y = -vert.y;vert.height = -vert.height;CharacterInfo charInfo = new CharacterInfo();charInfo.index = id;#if UNITY_5_3_OR_NEWER || UNITY_5_3 || UNITY_5_2charInfo.uvBottomLeft = new Vector2(uv.xMin, uv.yMin);charInfo.uvBottomRight = new Vector2(uv.xMax, uv.yMin);charInfo.uvTopLeft = new Vector2(uv.xMin, uv.yMax);charInfo.uvTopRight = new Vector2(uv.xMax, uv.yMax);charInfo.minX = (int)vert.xMin;charInfo.maxX = (int)vert.xMax;charInfo.minY = (int)vert.yMax;charInfo.maxY = (int)vert.yMin;charInfo.bearing = (int)vert.x;charInfo.advance = xadvance;
#else
#pragma warning disable 618charInfo.uv = uv;charInfo.vert = vert;charInfo.width = xadvance;
#pragma warning restore 618
#endifreturn charInfo;}
}

将这两个文件直接拖入Unity中，系统自动生成字体文件

直接使用