Don't die on script errors

scene/lobby.pr

@@ -142,10 +142,8 @@
       SetPen
       Home
 
-      [ 1.414 1 1 PenScale ] to big
-      [ 1 1 1 PenScale ] to normal
       [ 1 to k k / [dup F] k times drop ] to ff
-      [ 2 / dup R big 0 F R normal 0 F ] to rr
+      [ 2 / dup R 0 F R 0 F ] to rr
 
       PenDown
       1 ff 90 rr 1 ff 90 rr 1 ff 90 rr 1 ff 90 rr

src/shapes.ts

@@ -263,8 +263,11 @@ export function buildMesh(
         }
         case "turtle": {
             const t = new TurtleVM(name, scene, meshSpec.value.program.map(fromJS));
-            t.debug = true;
-            t.exec();
+            try {
+                t.exec();
+            } catch (e) {
+                console.error(e);
+            }
             return {
                 rootnode: t.container,
                 subnodes: Promise.resolve(t.meshes),

src/turtle.ts

@@ -13,7 +13,6 @@ import { VM as BaseVM, Input, Primitives, Environment } from './cat.js';
 export class PenState {
     templatePath: Vector3[] = [new Vector3()];
     paths: Vector3[][] | null = null;
-    templateScale = new Vector3(1, 1, 1);
 
     get isDown(): boolean {
         return this.paths !== null;
@@ -37,8 +36,9 @@ export class PenState {
     push(pos: Vector3, q: Quaternion) {
         this.templatePath.forEach((p, i) => {
             const r = new Vector3();
-            p.multiplyToRef(this.templateScale, r);
-            r.rotateByQuaternionToRef(q, r);
+            // p.multiplyToRef(this.templateScale, r);
+            // r.rotateByQuaternionToRef(q, r);
+            p.rotateByQuaternionToRef(q, r);
             r.addInPlace(pos);
             this.paths![i].push(r);
         });
@@ -162,10 +162,6 @@ export const TurtlePrimitives: Environment<TurtleVM> = Object.assign({}, Primiti
     'ClearPen'() { this.pen.clear(); return []; },
     'SetPen'() { this.pen.set(); return []; },
 
-    'PenScale'(sx, sy, sz) {
-        this.pen.templateScale = new Vector3(sx as number, sy as number, sz as number);
-        return [];
-    },
     'PenDown'() { this.penDown(); return []; },
     'PenUp'() { this.penUp(false); return []; },
     'Close'() { this.penUp(true); return []; },