add sit policy

app/src/game/controls/gamepad.js

@@ -8,7 +8,8 @@
 //                camera code). R3 toggles the chase cam.
 //   A            ground pick: one-shot pick-up-from-the-ground cycle
 //                (runtime-faithful; game gates it to walk mode)
-//   X            roll (crouch-glide in roller mode - game decides)
+//   X            sit <-> stand (crouch-glide in roller mode - game decides).
+//                The pad can no longer launch a roll at all.
 //   Y            HEAD mode toggle (runtime-faithful). While the game sets
 //                `headMode`, locomotion is parked and BOTH sticks drive
 //                the head instead: left = head pitch/yaw, right = neck
@@ -164,7 +165,7 @@ export class GamepadSource {
     prev.a = a;
 
     const x = !!gp.buttons[BTN_X]?.pressed;
-    if (x && !prev.x) this.onAction("roll");
+    if (x && !prev.x) this.onAction("sitToggle");
     prev.x = x;
 
     const y = !!gp.buttons[BTN_Y]?.pressed;

app/src/game/controls/keyboard.js

@@ -13,11 +13,13 @@ const KEYMAP = {
 
 // One-shot keys -> controller actions. Physical Q/E (A/E on AZERTY) are the
 // explicit left / right kicks, mirroring the pad's LB / RB; F alternates.
+// R sits (crouch-glide in roller mode - the game decides, same way the
+// roll action used to). Nothing dispatches "roll" any more.
 const ACTION_KEYS = {
   KeyC: "chaseToggle",
   KeyG: "groundPick",
   KeyM: "locoToggle",
-  KeyR: "roll",
+  KeyR: "sitToggle",
   KeyQ: "kickL",
   KeyE: "kickR",
   KeyF: "alternateKick",

app/src/game/game.js

@@ -1577,8 +1577,10 @@ async function boot({ scene, camera, renderer }) {
       kbKickFoot = kbKickFoot === "left" ? "right" : "left";
     }
   });
-  controller.on("sitToggle", () => {
-    if (loco !== "legs") return; // sitting is a legs-only skill
+  // Sit is the legs-only skill; on rollers the same button hands over to
+  // the crouch-glide, exactly as the (now unbound) roll action did.
+  controller.on("sitToggle", ({ source } = {}) => {
+    if (loco !== "legs") return triggerCrouch(srcTag(source));
     const sitting = mode === "sitstand" && sitFlag === 1;
     setMode(sitting ? "walk" : "sit");
   });

app/src/ui/TitleMenu.jsx

@@ -53,7 +53,7 @@ const TILES = {
   kb: [
     { caps: "cluster-arrows", name: "Move", hint: "arrows or ZQSD" },
     { caps: ["A", "E"], name: "Kick", hint: "left / right" },
-    { caps: ["R"], name: "Roll", hint: "barrel roll" },
+    { caps: ["R"], name: "Sit", hint: "tap again to stand" },
     { caps: ["G"], name: "Pick up", hint: "beak to the ground" },
     { caps: ["C"], name: "Camera", hint: "toggle chase" },
     { caps: ["Space"], name: "Reset", hint: "fresh start" },
@@ -61,10 +61,9 @@ const TILES = {
   pad: [
     { caps: ["LS"], name: "Move", hint: "left stick" },
     { caps: ["LB", "RB"], name: "Kick", hint: "left / right" },
-    { caps: ["X"], name: "Roll", hint: "barrel roll" },
     { caps: ["Y"], name: "Head", hint: "sticks move the head" },
     { caps: ["RS"], name: "Camera", hint: "orbit" },
-    { caps: ["\u2193"], name: "Sit", hint: "tap again to stand" },
+    { caps: ["X", "\u2193"], name: "Sit", hint: "tap again to stand" },
   ],
   touch: [
     { caps: ["Stick"], name: "Move", hint: "left thumb" },