not bad

js/ui_ground.js

@@ -0,0 +1,57 @@
+"use strict";
+
+(function (global) {
+  function groundDef(worldRef = global.world) {
+    const id = worldRef?.groundType || "soil";
+    return global.TarinaiGround?.definition?.(id) || (typeof GROUND_TYPES !== "undefined" ? GROUND_TYPES[id] || GROUND_TYPES.soil : { id: "soil", label: "土", description: "いつものじめん" });
+  }
+
+  function groundTip(worldRef = global.world) {
+    const def = groundDef(worldRef);
+    if (global.TarinaiGround?.tooltipText) return global.TarinaiGround.tooltipText(def.id);
+    return `${def.label || "じめん"}\n${def.description || "クリックで切り替え"}`;
+  }
+
+  function updateGroundUI(worldRef = global.world) {
+    const uiRef = global.ui || {};
+    const def = groundDef(worldRef);
+    const label = def.label || "土";
+    if (uiRef.statGroundType) setTextIfChanged(uiRef.statGroundType, "groundType", label);
+    if (uiRef.groundTypeBtn) {
+      const desc = def.description || "クリックで切り替え";
+      uiRef.groundTypeBtn.dataset.tip = desc;
+      uiRef.groundTypeBtn.removeAttribute("title");
+      uiRef.groundTypeBtn.setAttribute("aria-label", desc ? `地面を切り替える。現在は${label}。${desc}` : `地面を切り替える。現在は${label}`);
+    }
+  }
+
+  function bindGroundUI(worldRef = global.world) {
+    const btn = global.ui?.groundTypeBtn;
+    if (!btn) return;
+    if (btn.dataset.groundBound !== "1") {
+      btn.dataset.groundBound = "1";
+      btn.addEventListener("click", (event) => {
+        event.preventDefault();
+        event.stopPropagation();
+        const currentWorld = global.world || worldRef;
+        audio.uiClick?.();
+        currentWorld?.cycleGroundType?.();
+        if (global.uiCache) {
+          global.uiCache.lastStatsGroundType = "";
+          if (global.uiCache.stats) global.uiCache.stats.groundType = "";
+        }
+        updateGroundUI(currentWorld);
+        global.renderStats?.();
+      });
+    }
+    global.TarinaiTooltips?.bind?.(btn, () => groundTip(worldRef));
+    updateGroundUI(worldRef);
+  }
+
+  global.TarinaiGroundUI = Object.freeze({
+    bind: bindGroundUI,
+    update: updateGroundUI,
+    tip: groundTip,
+  });
+  global.bindGroundUI = bindGroundUI;
+})(window);