stub in snap but requires more work and validating removal of some mouse dragging code

src/mesh/api.js

@@ -1176,6 +1176,8 @@ const prefs = {
             scale_group_Z: true
         },
         space: {
+            snap: 1,
+            snapon: false,
             center: true,
             floor: true,
             wire: false,

src/mesh/build.js

@@ -284,7 +284,20 @@ api.settings = function() {
         }),
     ]);
 
-    modal.show('settings', h.div({ class: "settings" }, [ set1, set2, set3, set4 ] ));
+    // const set5 = h.div([
+    //     h.label({ class: "header", _: 'snap'}),
+    //     h.label('value'),
+    //     h.input({ type: "text", size: 5, value: parseFloat(space.snap || 1),
+    //         onchange: ev => call.set_snap_value(ev.target.value)
+    //     }),
+    //     h.label('enabled'),
+    //     h.input({ type: "checkbox",
+    //         onchange: ev => prefs.save( space.snapon = !space.snapon ),
+    //         [ space.snapon === true ? 'checked' : 'unchecked' ] : 1
+    //     }),
+    // ]);
+
+    modal.show('settings', h.div({ class: "settings" }, [ set1, set2, set3, set4, set5 ] ));
 }
 
 // create html elements

src/mesh/object.js

@@ -5,7 +5,7 @@
 // dep: add.three
 // dep: moto.license
 // dep: moto.broker
-// use: mesh.api
+// dep: mesh.api
 // use: mesh.util
 gapp.register("mesh.object", [], (root, exports) => {