Use proper SVG icons in the touch control bar, center the middle cluster absolutely

Swaps the unicode glyphs (◀ ▶ ⬆) for hand-drawn stroke/fill SVG icons
(chevrons, an eject-style plunger glyph, a coin glyph, a play triangle),
and positions the coin/start/plunger cluster with absolute + translate
so it sits on the bar's true center regardless of the flipper buttons.

components/hud/TouchControlBar.tsx

@@ -0,0 +1,159 @@
+"use client";
+
+import { useCallback, useState } from "react";
+
+interface KeyBinding {
+  key: string;
+  code: string;
+}
+
+const LEFT_FLIPPER: KeyBinding = { key: "Shift", code: "ShiftLeft" };
+const RIGHT_FLIPPER: KeyBinding = { key: "Shift", code: "ShiftRight" };
+const PLUNGER: KeyBinding = { key: "Enter", code: "Enter" };
+const INSERT_COIN: KeyBinding = { key: "4", code: "Digit4" };
+const START_GAME: KeyBinding = { key: "1", code: "Digit1" };
+
+function dispatchKey(type: "keydown" | "keyup", binding: KeyBinding) {
+  // SDL3's Emscripten video backend listens on the default "#window" target,
+  // so a real KeyboardEvent dispatched on window reaches the engine the same
+  // way a physical keypress would (see @valknar/vpinball-wasm's own
+  // touch-controls.js, which this bar replaces with app-styled UI).
+  window.dispatchEvent(new KeyboardEvent(type, { key: binding.key, code: binding.code, bubbles: true }));
+}
+
+function isTouchDevice(): boolean {
+  return typeof window !== "undefined" && ("ontouchstart" in window || navigator.maxTouchPoints > 0);
+}
+
+function FlipperLeftIcon() {
+  return (
+    <svg viewBox="0 0 24 24" width="28" height="28" fill="none" stroke="currentColor" strokeWidth="3">
+      <polyline points="15 5 8 12 15 19" strokeLinecap="round" strokeLinejoin="round" />
+    </svg>
+  );
+}
+
+function FlipperRightIcon() {
+  return (
+    <svg viewBox="0 0 24 24" width="28" height="28" fill="none" stroke="currentColor" strokeWidth="3">
+      <polyline points="9 5 16 12 9 19" strokeLinecap="round" strokeLinejoin="round" />
+    </svg>
+  );
+}
+
+/** Eject-style glyph (triangle over a bar) for the plunger/launch control. */
+function PlungerIcon() {
+  return (
+    <svg viewBox="0 0 24 24" width="20" height="20" fill="currentColor">
+      <path d="M12 4.5 19 15H5l7-10.5Z" />
+      <rect x="5" y="17.5" width="14" height="2.5" rx="1" />
+    </svg>
+  );
+}
+
+function CoinIcon() {
+  return (
+    <svg viewBox="0 0 24 24" width="18" height="18" fill="none" stroke="currentColor" strokeWidth="1.75">
+      <circle cx="12" cy="12" r="8.5" />
+      <path
+        d="M14.5 9.3c-.4-.8-1.3-1.3-2.5-1.3-1.7 0-3 .9-3 2.1 0 2.9 5.5 1.3 5.5 4.1 0 1.2-1.3 2.1-3 2.1-1.2 0-2.1-.5-2.5-1.3M12 6.8v1.2M12 16v1.2"
+        strokeLinecap="round"
+        strokeLinejoin="round"
+      />
+    </svg>
+  );
+}
+
+function PlayIcon() {
+  return (
+    <svg viewBox="0 0 24 24" width="18" height="18" fill="currentColor">
+      <path d="M7 4.5v15l13-7.5-13-7.5Z" />
+    </svg>
+  );
+}
+
+function ControlButton({
+  binding,
+  label,
+  icon,
+  size,
+}: {
+  binding: KeyBinding;
+  label: string;
+  icon: React.ReactNode;
+  size: "lg" | "md" | "sm";
+}) {
+  const [pressed, setPressed] = useState(false);
+
+  const onDown = useCallback(
+    (e: React.PointerEvent<HTMLButtonElement>) => {
+      e.preventDefault();
+      e.currentTarget.setPointerCapture(e.pointerId);
+      setPressed(true);
+      dispatchKey("keydown", binding);
+    },
+    [binding],
+  );
+  const onUp = useCallback(() => {
+    setPressed(false);
+    dispatchKey("keyup", binding);
+  }, [binding]);
+
+  const sizeClasses = size === "lg" ? "h-20 w-20" : size === "md" ? "h-14 w-14" : "h-12 w-12";
+
+  return (
+    <button
+      type="button"
+      aria-label={label}
+      onPointerDown={onDown}
+      onPointerUp={onUp}
+      onPointerCancel={onUp}
+      onContextMenu={(e) => e.preventDefault()}
+      className={`flex touch-none select-none items-center justify-center rounded-full border-2 transition ${sizeClasses} ${
+        pressed
+          ? "border-marquee bg-marquee/30 text-marquee shadow-[0_0_16px_rgba(255,122,41,0.5)]"
+          : "border-chrome/40 bg-black/40 text-chrome"
+      }`}
+    >
+      {icon}
+    </button>
+  );
+}
+
+export interface TouchControlBarProps {
+  active: boolean;
+}
+
+/**
+ * Coin-door-styled bottom control bar for mobile play. Replaces
+ * @valknar/vpinball-wasm's default floating overlay buttons with UI that
+ * matches the cabinet look and puts the flippers at the screen's bottom
+ * corners, in thumb reach when holding the device landscape.
+ */
+export default function TouchControlBar({ active }: TouchControlBarProps) {
+  // Computed once at mount (matches usePinballInstance's hasWebGL2 pattern) —
+  // touch support doesn't change over a session, so this doesn't need an
+  // effect/listener, just a lazy initial state.
+  const [isTouch] = useState(isTouchDevice);
+
+  if (!active || !isTouch) return null;
+
+  return (
+    <div
+      data-hud
+      className="absolute inset-x-0 bottom-0 z-10 flex items-center justify-between border-t border-chrome/30 bg-ash/90 px-3 pb-[max(0.75rem,env(safe-area-inset-bottom))] pt-3 backdrop-blur sm:hidden"
+    >
+      <ControlButton binding={LEFT_FLIPPER} label="Left flipper" icon={<FlipperLeftIcon />} size="lg" />
+
+      {/* Positioned absolutely so it sits on the bar's true center, independent
+          of the (equal-width, so already symmetric) flipper buttons on either side. */}
+      <div className="absolute left-1/2 top-1/2 flex -translate-x-1/2 -translate-y-1/2 items-center gap-3">
+        <ControlButton binding={INSERT_COIN} label="Insert coin" icon={<CoinIcon />} size="sm" />
+        <ControlButton binding={START_GAME} label="Start game" icon={<PlayIcon />} size="sm" />
+        <ControlButton binding={PLUNGER} label="Plunger" icon={<PlungerIcon />} size="md" />
+      </div>
+
+      <ControlButton binding={RIGHT_FLIPPER} label="Right flipper" icon={<FlipperRightIcon />} size="lg" />
+    </div>
+  );
+}

components/pinball/PinballCanvasImpl.tsx

@@ -2,8 +2,8 @@
 
 import { useRef } from "react";
 import { usePinballInstance, type RomSelection } from "@/lib/pinball/usePinballInstance";
-import { useTouchControls } from "@/lib/pinball/useTouchControls";
 import CoinDoorHud from "@/components/hud/CoinDoorHud";
+import TouchControlBar from "@/components/hud/TouchControlBar";
 import type { TableInfo } from "@/lib/pinball/types";
 
 export interface PinballCanvasImplProps {
@@ -14,16 +14,14 @@ export interface PinballCanvasImplProps {
 
 export default function PinballCanvasImpl({ tableData, rom, tableInfo }: PinballCanvasImplProps) {
   const canvasRef = useRef<HTMLCanvasElement | null>(null);
-  const containerRef = useRef<HTMLDivElement | null>(null);
   const { status, progress, error, loadTimeMs, instanceRef, start } = usePinballInstance(
     canvasRef,
     tableData,
     rom,
   );
-  useTouchControls(containerRef, status === "running");
 
   return (
-    <div ref={containerRef} className="relative h-full w-full overflow-hidden bg-black">
+    <div className="relative h-full w-full overflow-hidden bg-black">
       {/* SDL3's Emscripten backend resolves its own window/GL-context target via
           document.querySelector("#canvas") independently of Module.canvas — the
           id is required or context creation silently no-ops (findCanvasEventTarget
@@ -35,6 +33,8 @@ export default function PinballCanvasImpl({ tableData, rom, tableInfo }: Pinball
         <CoinDoorHud instanceRef={instanceRef} tableInfo={tableInfo} loadTimeMs={loadTimeMs} />
       )}
 
+      <TouchControlBar active={status === "running"} />
+
       {status === "loading" && (
         <div className="absolute inset-0 flex flex-col items-center justify-center gap-4 bg-ink/90 text-paper">
           <div className="font-display text-2xl tracking-wide text-marquee">LOADING TABLE</div>

lib/pinball/useTouchControls.ts

@@ -1,38 +0,0 @@
-"use client";
-
-import { useEffect } from "react";
-import type { attachTouchControls as AttachTouchControls } from "@valknar/vpinball-wasm";
-
-const ENGINE_BASE_URL = "/vendor/vpinball-wasm";
-
-function isTouchDevice(): boolean {
-  return typeof window !== "undefined" && ("ontouchstart" in window || navigator.maxTouchPoints > 0);
-}
-
-/** Attaches the engine's on-screen touch overlay to `containerRef` while `active` is true. */
-export function useTouchControls(
-  containerRef: React.RefObject<HTMLElement | null>,
-  active: boolean,
-): void {
-  useEffect(() => {
-    if (!active || !isTouchDevice()) return;
-    const container = containerRef.current;
-    if (!container) return;
-
-    let handle: { detach: () => void } | undefined;
-    let cancelled = false;
-
-    (async () => {
-      const { attachTouchControls } = (await import(
-        /* webpackIgnore: true */ `${ENGINE_BASE_URL}/index.js`
-      )) as { attachTouchControls: typeof AttachTouchControls };
-      if (cancelled) return;
-      handle = attachTouchControls({ container });
-    })();
-
-    return () => {
-      cancelled = true;
-      handle?.detach();
-    };
-  }, [containerRef, active]);
-}