开发中，使用的位图字体一般都是美术给的图片资源，在laya中，好像不能直接用，用laya给的方式做的位图文本，效果总感觉不太满意，就寻思着自己写个，功能简单些，基本能够满足开发中的需求，有需要的，可以自己去丰富一些，这里只是个参考。合图工具呢，还是用的白鹭的，可以根据自己需求调整，这个是json的格式：

// 程序入口
class GameMain{
    constructor()
    {
        Laya.init(600,400);
        var that = this;
        Laya.loader.load([{"url":"res/playerKpiFont.json","type":Laya.Loader.JSON},
        {"url":"res/playerKpiFont.png","type":Laya.Loader.IMAGE}],new Laya.Handler(that,function(){
                var jsonData = Laya.loader.getRes("res/playerKpiFont.json");
                var imageData = Laya.loader.getRes("res/playerKpiFont.png");

                // 左中右创建的3个实例
                var bp = new BPFont(jsonData,imageData,600,"left");
                var bp1 = new BPFont(jsonData,imageData,600,"center");
                var bp2 = new BPFont(jsonData,imageData,600,"right");
                bp.padding = bp1.padding = bp2.padding = -7;
                Laya.stage.addChild(bp);
                Laya.stage.addChild(bp1);
                Laya.stage.addChild(bp2);
                var t = 1000;
                Laya.timer.loop(1000,that,function(){
                    bp.text = t + "";
                    bp1.text = t + "";
                    bp2.text = t + "";
                    t++;
                })
            }

        ));
    }
}
new GameMain();

运行效果基本上还行，

/*
* 位图字体;
*/
class BPFont extends Laya.Sprite{
    // 文本内容
    private _text: string;
    // json数据
    private _jsonData: any;
    // 图片数据
    private _imageData: Laya.Texture;
    // 文本字间距
    private _padding: number = 0;
    // 所有元素；
    private charSprites: Laya.Sprite;
    // 位置类型
    private _posType: string;
    //  左 右 中
    public static LEFT: string = "left";
    public static RIGHT: string = "right";
    public static CENTER: string = "center";
    constructor(jsonData: any,textureData: Laya.Texture,width: number,posType:string = "left"){
        super();
        this.width = width;
        this._posType = posType;
        this._jsonData = jsonData;
        this._imageData = textureData;
    }

    public set padding(v: number){
        this._padding = v;
        this.setCharsPos();
    }
    public get padding(): number{
        return this._padding;
    }
    
    public set text(v :string){
        this._text = v;
        this.createBitmapFont(v);
    }
    public get text(): string{
        return this._text;
    }
    
    // 创建位图字体
    private createBitmapFont(v: string){
        if(!v || v == ""){
            return;
        }
        // 移除上次绘制的内容
        for(var k=0;k<this.numChildren;k++){
            Laya.Pool.recover("sprite",this._childs[k]);
        }
        this.removeChildren();
        var charTotal: number = v.length;
        var charSps: any = ;
        for(var i=0;i<charTotal;i++){
            var targetChar = v.substr(i,1);
            var charData: any = this._jsonData.frames[targetChar];
            if(!charData){
                console.warn("没有找到对应的字符：" + targetChar);
                continue;
            }
            var charSp = this.drawTexture(charData);
            charSps.push(charSp); 
        }
        this.charSprites = charSps;
        this.setCharsPos();
    }
    // 从图集上面抠图
    private drawTexture(charData){
        var charSp: Laya.Sprite = new Laya.Sprite();
        charSp = Laya.Pool.getItemByClass("sprite",Laya.Sprite);
        charSp.graphics.fillTexture(this._imageData,charData.x,charData.y,charData.w,charData.h,"no-repeat",new Laya.Point(-charData.x,-charData.y));
        charSp.size(charData.w,charData.h)
        charSp.scrollRect = new Laya.Rectangle(charData.x,charData.y,charData.w,charData.h);
        this.addChild(charSp);
        return charSp;
    }
    // 设置位置
    private setCharsPos(){
        switch (this._posType){
            case BPFont.LEFT:
                this.setCharsPosOnLeft();
            break;
            case BPFont.RIGHT:
                this.setCharsPosOnRight();
            break;
            case BPFont.CENTER:
                this.setCharsPosOnCenter();
            break;
        }
    }

    // 左对齐
    private setCharsPosOnLeft(){
        if(!this.text || this.text == ""){
            return;
        }
        var sps = this.charSprites;
        var length = sps.length;
        for(var i=0;i<length;i++){
            sps[i].x = 0;
        }
        for(var i=1;i<length;i++){
            sps[i].x += sps[i-1].x + sps[i-1].width + this.padding;  
        }
    }
    // 右对齐
    private setCharsPosOnRight(){
        if(!this.text || this.text == ""){
            return;
        }
        var sps = this.charSprites;
        var length = sps.length;
        var width = this.width;
        for(var i=0;i<length;i++){
            sps[i].x = width;
        }
        for(var i=length-1;i>=0;i--){
            width -= sps[i].width + this.padding;
            sps[i].x = width;
        }
    }
    // 居中
    private setCharsPosOnCenter(){
        if(!this.text || this.text == ""){
            return;
        }
        var sps = this.charSprites;
        var length = sps.length;
        var width = this.width;
        var allCharsWidth = 0;
        for(var i=0;i<length;i++){
            allCharsWidth += sps[i].width;
        }
        var x = (width - allCharsWidth) / 2;
        sps[0].x = x;
        for(var i=1;i<length;i++){
            sps[i].x=0;
            sps[i].x += sps[i-1].x + sps[i-1].width + this.padding;  
        }
    }
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