change select / drag behavior

src2/main/mesh.js

@@ -371,11 +371,7 @@ function space_init(data) {
         let obj = int?.object;
         if (obj) api.selection.drag({ start: int.object });
         if (obj) obj.sketch_item?.sketch.drag({ start: int.object });
-        if (event?.shiftKey) {
-            return api.objects();
-        } else {
-            return undefined;
-        }
+        return event?.shiftKey ? undefined : api.objects(selection.count() ? true : false);
     });
 
     // called two ways:
@@ -477,7 +473,8 @@ function space_init(data) {
     space.mouse.onDrag((delta, offset, up = false) => {
         let { mode, modes } = api;
         if (delta) {
-            if (delta.event?.shiftKey && selection.count()) {
+            // if (delta.event?.shiftKey && selection.count()) {
+            if (selection.count()) {
                 selection.drag({ delta, offset });
             }
         } else if (up) {

src2/mesh/api.js

@@ -1597,12 +1597,19 @@ const api = {
         prefs.save( prefs.map.space.norm = norm );
     },
 
-    objects() {
+    objects(selected = false) {
         // return model objects suitable for finding ray intersections
-        return [
-            ...group.list().map(o => o.models).flat().map(o => o.mesh),
-            ...sketches.map(s => s.meshes).flat()
-        ];
+        if (selected) {
+            return [
+                ...selection.models().map(o => o.mesh),
+                ...selection.sketches().map(s => s.meshes).flat()
+            ];
+        } else {
+            return [
+                ...group.list().map(o => o.models).flat().map(o => o.mesh),
+                ...sketches.map(s => s.meshes).flat()
+            ];
+        }
     },
 
     add,

src2/moto/space.js

@@ -865,7 +865,9 @@ function onMouseDown(event) {
         let selection = null,
             trackTo = alignedTracking ? trackPlane : platform,
             isVis = trackTo.visible;
-        if (mouseDownSelect) selection = mouseDownSelect(undefined, event);
+        if (mouseDownSelect) {
+            selection = mouseDownSelect(undefined, event);
+        }
         if (selection && selection.length > 0) {
             // selection = selection.map(o => o.isGroup ? o.children : o).flat();
             // console.log({ selection });