Agent cursor speed: a slider from 1× to 5× with Instant at the far right. Instant no longer breaks: the command runs at once (as with the cursor off) and the pointer jumps to where it acted, with a click ripple. ui.agent_cursor speed takes 1–5 or "instant"; saved "slow" and "normal" read as 1×. Scenario covers 1×, 3× and Instant against the cursor-off result

Fixes #79

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RjGw4gA5ZvKrU8MQP6sBgT

crates/ui-egui/src/agent_cursor.rs

@@ -21,36 +21,87 @@ use solvecraft_engine::geom::{Vec2, Vec3};
 use crate::SolveApp;
 use crate::control::ControlResponse;
 
-/// How fast the pointer moves.
+/// How fast the pointer moves: 1× to 5×, or Instant (no animation: the command runs at once
-#[derive(Clone, Copy, Debug, Default, PartialEq, Eq, Serialize, Deserialize)]
+/// and the pointer jumps to where it acted, with a click ripple). Saved and sent as a number,
-#[serde(rename_all = "lowercase")]
+/// or "instant"; the old "slow" and "normal" read as 1×.
+#[derive(Clone, Copy, Debug, PartialEq)]
 pub enum Speed {
-    /// No animation: the command runs at once.
+    Times(f64),
     Instant,
-    #[default]
+}
-    Normal,
+
-    Slow,
+impl Default for Speed {
+    fn default() -> Self {
+        Speed::Times(1.0)
+    }
 }
 
 impl Speed {
-    pub const ALL: [Speed; 3] = [Speed::Instant, Speed::Normal, Speed::Slow];
+    /// From a number (1–5) or a name ("instant"; "slow" and "normal" are 1×).
-    pub fn label(self) -> &'static str {
+    pub fn from_value(v: &Value) -> Option<Speed> {
+        match v {
+            Value::Number(n) => n.as_f64().filter(|x| x.is_finite() && (1.0..=5.0).contains(x)).map(Speed::Times),
+            Value::String(s) => match s.to_ascii_lowercase().as_str() {
+                "instant" => Some(Speed::Instant),
+                "slow" | "normal" => Some(Speed::Times(1.0)),
+                "fast" => Some(Speed::Times(2.0)),
+                _ => None,
+            },
+            _ => None,
+        }
+    }
+    pub fn label(self) -> String {
         match self {
-            Speed::Instant => "Instant",
+            Speed::Instant => "Instant".into(),
-            Speed::Normal => "Normal",
+            Speed::Times(x) => {
-            Speed::Slow => "Slow",
+                let s = format!("{x:.1}");
+                format!("{}×", s.trim_end_matches(".0"))
+            }
         }
     }
     /// Seconds to glide to a stop, and to click there.
     fn times(self) -> (f64, f64) {
         match self {
             Speed::Instant => (0.0, 0.0),
-            Speed::Normal => (0.45, 0.25),
+            Speed::Times(x) => {
-            Speed::Slow => (0.9, 0.45),
+                let x = x.clamp(1.0, 5.0);
+                (0.45 / x, 0.25 / x)
+            }
         }
     }
 }
 
+impl Serialize for Speed {
+    fn serialize<S: serde::Serializer>(&self, s: S) -> Result<S::Ok, S::Error> {
+        match self {
+            Speed::Instant => s.serialize_str("instant"),
+            Speed::Times(x) => s.serialize_f64(*x),
+        }
+    }
+}
+
+impl<'de> Deserialize<'de> for Speed {
+    fn deserialize<D: serde::Deserializer<'de>>(d: D) -> Result<Self, D::Error> {
+        let v = Value::deserialize(d)?;
+        Ok(Speed::from_value(&v).unwrap_or_default())
+    }
+}
+
+/// The speed as a slider: 1× to 5× in half steps, and Instant at the far right.
+pub fn speed_slider(ui: &mut egui::Ui, speed: &mut Speed) -> egui::Response {
+    let mut v = match *speed {
+        Speed::Times(x) => x.clamp(1.0, 5.0),
+        Speed::Instant => 5.5,
+    };
+    let r = ui.add(
+        egui::Slider::new(&mut v, 1.0..=5.5).step_by(0.5).custom_formatter(|v, _| if v > 5.25 { "Instant".into() } else { Speed::Times(v).label() }),
+    );
+    if r.changed() {
+        *speed = if v > 5.25 { Speed::Instant } else { Speed::Times(v) };
+    }
+    r
+}
+
 /// The settings (kept with the other view settings).
 #[derive(Clone, Copy, Debug, Default, PartialEq, Serialize, Deserialize)]
 #[serde(default)]
@@ -176,7 +227,7 @@ fn walk<'a>(v: &'a Value, key: Option<&'a str>, f: &mut dyn FnMut(Option<&'a str
 /// back when it should simply run.
 pub fn intercept(app: &mut SolveApp, method: &str, params: &Value, reply: &Sender<ControlResponse>) -> bool {
     let s = app.ui.agent_cursor;
-    if !s.show || s.speed == Speed::Instant || !matches!(method, "engine.execute" | "command") {
+    if !s.show || !matches!(method, "engine.execute" | "command") {
         return false;
     }
     if params.get("animate").and_then(Value::as_bool) == Some(false) {
@@ -185,6 +236,14 @@ pub fn intercept(app: &mut SolveApp, method: &str, params: &Value, reply: &Sende
     let Some(cmd) = params.get("command").or(params.get("id")).and_then(Value::as_str) else { return false };
     let inner = params.get("params").cloned().unwrap_or(json!({}));
     let stops: VecDeque<Pos2> = stops(app, cmd, &inner).into();
+    if s.speed == Speed::Instant {
+        // No animation: the command runs now; the pointer jumps to where it acted.
+        if let Some(last) = stops.back() {
+            app.agent.pos = Some(*last);
+            app.agent.ripples.push((*last, app.now));
+        }
+        return false;
+    }
     if stops.is_empty() {
         return false;
     }
@@ -336,4 +395,25 @@ mod tests {
         // Off-screen places are skipped rather than pointed at outside the view.
         assert!(stops(&a, "solid.hole", &json!({"position": [1e6, 0, 0]})).iter().all(|p| rect.contains(*p)));
     }
+
+    #[test]
+    fn speeds_read_old_and_new_settings() {
+        // Saved settings from before #79: slow and normal are 1×, instant stays.
+        for (v, want) in [
+            (json!("slow"), Speed::Times(1.0)),
+            (json!("normal"), Speed::Times(1.0)),
+            (json!("instant"), Speed::Instant),
+            (json!(3), Speed::Times(3.0)),
+        ] {
+            assert_eq!(Speed::from_value(&v), Some(want), "{v}");
+            let s: Settings = serde_json::from_value(json!({"show": true, "speed": v})).unwrap();
+            assert_eq!(s.speed, want);
+        }
+        assert_eq!(Speed::from_value(&json!(9)), None);
+        assert_eq!(serde_json::to_value(Speed::Instant).unwrap(), json!("instant"));
+        assert_eq!(serde_json::to_value(Speed::Times(2.5)).unwrap(), json!(2.5));
+        assert_eq!((Speed::Times(1.0).label(), Speed::Times(2.5).label(), Speed::Instant.label()), ("1×".into(), "2.5×".into(), "Instant".into()));
+        // Faster glides take less time.
+        assert!(Speed::Times(5.0).times().0 < Speed::Times(1.0).times().0);
+    }
 }

crates/ui-egui/src/control.rs

@@ -27,7 +27,7 @@
 //! - `ui.prefs {...}`: the preferences (default_units, nav, zoom_reverse, orbit_cursor, msaa,
 //!   length_decimals, angle_decimals); returns them all
 //! - `ui.capture {action?: capture|revert|cancel}`: the Capture Position question
-//! - `ui.agent_cursor {show?, speed?: instant|normal|slow, follow_camera?}`: the agent cursor
+//! - `ui.agent_cursor {show?, speed?: 1–5 (times) | "instant", follow_camera?}`: the agent cursor
 //!   (#35); while it is shown, `engine.execute` first glides to the command's button and picks
 //!   and replies once the command has run (`"animate": false` skips that one call)
 //! - `ui.resize {width, height}`, `app.quit`
@@ -107,9 +107,9 @@ pub fn handle(app: &mut SolveApp, ctx: &egui::Context, req: &ControlRequest) ->
                 s.follow_camera = v;
             }
             if let Some(v) = p.get("speed") {
-                match serde_json::from_value(v.clone()) {
+                match crate::agent_cursor::Speed::from_value(v) {
-                    Ok(sp) => s.speed = sp,
+                    Some(sp) => s.speed = sp,
-                    Err(_) => return err("speed must be instant, normal or slow"),
+                    None => return err("speed must be a number from 1 to 5, or \"instant\""),
                 }
             }
             ok(json!(app.ui.agent_cursor))

crates/ui-egui/src/prefs.rs

@@ -507,11 +507,7 @@ fn page(app: &mut SolveApp, ui: &mut egui::Ui, t: &Tokens) {
             ui.end_row();
             ui.label("Agent cursor speed");
             ui.add_enabled_ui(s.show, |ui| {
-                ui.horizontal(|ui| {
+                crate::agent_cursor::speed_slider(ui, &mut s.speed);
-                    for sp in crate::agent_cursor::Speed::ALL {
-                        ui.selectable_value(&mut s.speed, sp, sp.label());
-                    }
-                });
             });
             ui.end_row();
             ui.label("");

crates/ui-egui/src/scenario.rs

@@ -9,7 +9,7 @@
 //! - `{"click": AT, "double"?, "shift"?, "ctrl"?, "button"?}`, `{"move": AT}`,
 //!   `{"drag": [AT, AT], "shift"?, "ctrl"?, "steps"?}` where AT is `[x, y]` (screen), `{"world": [x,y,z]}`
 //!   or `{"sketch": [x,y]}` (the sketch being edited)
-//! - `{"queued": "engine.execute", "params": {…}, "min_frames"?: n}`: a request sent the way an
+//! - `{"queued": "engine.execute", "params": {…}, "min_frames"?: n, "max_frames"?: n}`: a request sent the way an
 //!   agent's arrive (through the app's request queue, answered between frames, so the agent
 //!   cursor can act it out first); fails if the answer came in fewer than `min_frames` frames
 //! - `{"call": "ui.view", "params": {…}}`: any other control request (`fail: true` expects an
@@ -375,6 +375,11 @@ impl Harness {
                 if (frames as u64) < min {
                     return Err(format!("{m} was answered after {frames} frames: the agent cursor did not act it out ({min})"));
                 }
+                if let Some(max) = s.get("max_frames").and_then(Value::as_u64)
+                    && frames as u64 > max
+                {
+                    return Err(format!("{m} was answered after {frames} frames, more than {max}"));
+                }
                 v
             } else if let Some(f) = s.get("script").and_then(Value::as_str) {
                 // A command script (`{"commands": [{command, params}]}`, path from the repository

crates/ui-egui/src/viewport.rs

@@ -2275,9 +2275,7 @@ fn view_menu(app: &mut SolveApp, ui: &mut egui::Ui, button: Rect) -> bool {
             ui.add_enabled_ui(s.show, |ui| {
                 ui.horizontal(|ui| {
                     ui.label("Speed");
-                    for sp in crate::agent_cursor::Speed::ALL {
+                    crate::agent_cursor::speed_slider(ui, &mut s.speed);
-                        ui.selectable_value(&mut s.speed, sp, sp.label());
-                    }
                 });
                 ui.checkbox(&mut s.follow_camera, "Follow camera (Look At sketches)");
             });

crates/ui-egui/tests/scenarios/agent_cursor.json

@@ -1,17 +1,32 @@
 [
-  {"note": "#35: with the agent cursor on, an agent's commands are acted out (the reply waits for the pointer) and give the same result as with it off"},
+  {"note": "#35, #79: with the agent cursor on, an agent's commands are acted out (the reply waits for the pointer) at 1x and 3x; at Instant they run at once. Each speed builds the same body as the cursor being off."},
-  {"call": "ui.agent_cursor", "params": {"show": true, "speed": "normal", "follow_camera": true}},
+  {"call": "ui.agent_cursor", "params": {"show": true, "speed": 1, "follow_camera": true}},
   {"queued": "engine.execute", "params": {"command": "sketch.create", "params": {"plane": "XY"}}, "min_frames": 30},
   {"queued": "engine.execute", "params": {"command": "sketch.rectangle.two_point", "params": {"p0": [0, 0], "p1": [40, 25]}}, "min_frames": 45},
   {"queued": "engine.execute", "params": {"command": "sketch.finish", "params": {}}, "min_frames": 30},
   {"queued": "engine.execute", "params": {"command": "solid.extrude", "params": {"distance": 10, "operation": "new"}}, "min_frames": 30},
   {"expect": {"errors": 0, "bodies": 1, "volume": [10000, 1e-6]}},
+  {"note": "3x: still acted out, about three times as fast"},
+  {"call": "ui.agent_cursor", "params": {"speed": 3}},
+  {"queued": "engine.execute", "params": {"command": "sketch.create", "params": {"plane": "XY"}}, "min_frames": 8, "max_frames": 45},
+  {"queued": "engine.execute", "params": {"command": "sketch.rectangle.two_point", "params": {"p0": [0, 0], "p1": [40, 25]}}, "min_frames": 8},
+  {"queued": "engine.execute", "params": {"command": "sketch.finish", "params": {}}, "min_frames": 8},
+  {"queued": "engine.execute", "params": {"command": "solid.extrude", "params": {"distance": 10, "operation": "new"}}, "min_frames": 8},
+  {"expect": {"errors": 0, "bodies": 2, "volume": [20000, 1e-6]}},
+  {"note": "Instant: answered on the next frame, no animation"},
+  {"call": "ui.agent_cursor", "params": {"speed": "instant"}},
+  {"queued": "engine.execute", "params": {"command": "sketch.create", "params": {"plane": "XY"}}, "max_frames": 2},
+  {"queued": "engine.execute", "params": {"command": "sketch.rectangle.two_point", "params": {"p0": [0, 0], "p1": [40, 25]}}, "max_frames": 2},
+  {"queued": "engine.execute", "params": {"command": "sketch.finish", "params": {}}, "max_frames": 2},
+  {"queued": "engine.execute", "params": {"command": "solid.extrude", "params": {"distance": 10, "operation": "new"}}, "max_frames": 2},
+  {"expect": {"errors": 0, "bodies": 3, "volume": [30000, 1e-6]}},
   {"note": "A call with animate: false runs at once"},
-  {"queued": "engine.execute", "params": {"command": "sketch.create", "params": {"plane": "XY"}, "animate": false}},
+  {"call": "ui.agent_cursor", "params": {"speed": 1}},
+  {"queued": "engine.execute", "params": {"command": "sketch.create", "params": {"plane": "XY"}, "animate": false}, "max_frames": 2},
   {"call": "ui.agent_cursor", "params": {"show": false}},
-  {"note": "The same steps with the cursor off: a second, identical body"},
+  {"note": "The same steps with the cursor off: a fourth, identical body"},
   {"queued": "engine.execute", "params": {"command": "sketch.rectangle.two_point", "params": {"p0": [0, 0], "p1": [40, 25]}}},
   {"queued": "engine.execute", "params": {"command": "sketch.finish", "params": {}}},
   {"queued": "engine.execute", "params": {"command": "solid.extrude", "params": {"distance": 10, "operation": "new"}}},
-  {"expect": {"errors": 0, "bodies": 2, "volume": [20000, 1e-6]}}
+  {"expect": {"errors": 0, "bodies": 4, "volume": [40000, 1e-6]}}
 ]

docs/control-protocol.md

@@ -52,7 +52,7 @@ Commands never open dialogs when run this way. `solvecraft-cli commands` prints
 | `ui.prefs` | any of `default_units`, `nav` (`fusion`, `solidworks`, `inventor`, `alias`, `tinkercad`), `zoom_reverse`, `zoom_to_cursor`, `orbit_cursor`, `look_at_anim`, `look_at_speed`, `msaa`, `length_decimals`, `angle_decimals`, `theme` (`dark`, `light`, `system`), `ui_scale`, `up_axis` (`z`, `y`), `offer_stand_up`; `open` (a page: General, Navigation, Keyboard Shortcuts, Design, Graphics, Sketch, Selection) opens the Preferences dialog there; `button`: `ok`, `cancel`, `apply`, `defaults`; `stand_up: true` stands up a just-opened Y-up file | sets preferences (kept between runs), returns them all plus `dialog` (the open page or null), `dark` and `stand_up_offer` |
 | `ui.capture` | `action?`: `capture`, `revert`, `cancel` | answers the Capture Position question (asked when a command starts or the design is saved while components were moved without capturing); without `action`, what waits |
 | `ui.window` | `action`: minimize, maximize, restore, toggle, close | what the title bar's caption buttons do (on Windows and Linux the application bar is the title bar); close asks about unsaved designs first |
-| `ui.agent_cursor` | `show` (bool), `speed`: `instant`, `normal`, `slow`, `follow_camera` (bool); all optional | the settings. While the cursor is shown, `engine.execute` first glides to the command's toolbar button and to each pick, then runs and replies; later requests wait their turn. `"animate": false` on a call skips it |
+| `ui.agent_cursor` | `show` (bool), `speed`: a number from 1 to 5 (times the normal speed) or `"instant"` (no animation: the command runs at once and the pointer jumps to where it acted), `follow_camera` (bool); all optional | the settings. While the cursor is shown, `engine.execute` first glides to the command's toolbar button and to each pick, then runs and replies; later requests wait their turn. `"animate": false` on a call skips it |
 | `ui.resize` | `width`, `height` | |
 | `app.quit` | `force?` (quit without asking about unsaved designs) | `quitting` (the window closes), `asking` (a "save changes?" prompt is open) |