修正字体不存在时引发的错误

src/DatabaseServices/Text/FontExt.ts

@@ -4,7 +4,7 @@ import { Font, ShapePath } from "three"
 
 export class FontExt extends Font
 {
-    generateShapes(text, size)
+    generateShapes(text: string, size: number)
     {
         if (size === undefined) size = 100;
         let shapes = [];
@@ -16,7 +16,7 @@ export class FontExt extends Font
         return shapes;
     }
 }
-function createPaths(text: string, size, data)
+function createPaths(text: string, size: number, data: any)
 {
     let scale = size / data.resolution;
     let line_height = (data.boundingBox.yMax - data.boundingBox.yMin + data.underlineThickness) * scale;
@@ -39,13 +39,16 @@ function createPaths(text: string, size, data)
         else
         {
             let ret = createPath(char, scale, offsetX, offsetY, data);
-            offsetX += ret.offsetX;
-            paths.push(ret.path);
+            if (ret)
+            {
+                offsetX += ret.offsetX;
+                paths.push(ret.path);
+            }
         }
     }
     return paths;
 }
-function createPath(char, scale, offsetX, offsetY, data)
+function createPath(char: string, scale: number, offsetX: number, offsetY: number, data: any)
 {
     let glyph = data.glyphs[char] || data.glyphs['?'];
 
@@ -53,7 +56,7 @@ function createPath(char, scale, offsetX, offsetY, data)
 
     let path = new ShapePath();
 
-    let x, y, cpx, cpy, cpx1, cpy1, cpx2, cpy2;
+    let x: number, y: number, cpx: number, cpy: number, cpx1: number, cpy1: number, cpx2: number, cpy2: number;
 
     if (glyph.o)
     {