Upload skyscraper.html

skyscraper.html

@@ -791,27 +791,32 @@
                 if (this.s.timerActive && this._checkTimer()) return;
                 const l2 = this._getL2(); if (!l2) return;
                 const d = this.s.targetDist, l1 = this.s.line1;
-                let totalErr = 0;
-                this.s.markerTs.forEach(t => {
+                // 逐點檢查：每個測量點的四捨五入值必須完全等於 d
+                let allMatch = true;
+                let mismatchInfo = '';
+                this.s.markerTs.forEach((t, idx) => {
                     const px = l1.p1.x + (l1.p2.x - l1.p1.x) * t, py = l1.p1.y + (l1.p2.y - l1.p1.y) * t;
-                    totalErr += Math.abs(this._perpDist(px, py, l2.p1, l2.p2) - d);
+                    const measured = Math.round(this._perpDist(px, py, l2.p1, l2.p2));
+                    if (measured !== d) {
+                        allMatch = false;
+                        mismatchInfo = `目標 d = ${d}，但有測量點顯示 ${measured}`;
+                    }
                 });
-                const avg = totalErr / this.s.markerTs.length;
                 if (this.s.phase === 'tutorial') {
-                    if (avg < 2) {
+                    if (allMatch) {
                         this._showPhaseModal('✅', '教學完成！', '垂直距離處處相等 = 平行！\n確認距離一致就代表兩條線平行', '確認，繼續 →', null);
                         this.dom.tbtn.onclick = () => { this.dom.tm.classList.add('hidden'); this.s.lvIdx++; this._genLevel() }
                     }
-                    else this._showToast('還不夠精確！各處的垂直距離必須完全相等才是平行', false);
+                    else this._showToast(`還不是完全平行！${mismatchInfo}`, false);
                     return;
                 }
                 if (this.s.fixMode) {
-                    if (avg < 1.5) { this._onCorrect(80) }
-                    else this._showToast('還不夠精確！垂直距離必須完全一致才算平行', false);
+                    if (allMatch) { this._onCorrect(80) }
+                    else this._showToast(`還不是完全平行！${mismatchInfo}`, false);
                     return;
                 }
-                if (avg < 1.5) this._onCorrect(100);
-                else this._showToast('垂直距離不一致，還不是完全平行！再調整', false);
+                if (allMatch) this._onCorrect(100);
+                else this._showToast(`還不是完全平行！${mismatchInfo}`, false);
             }
 
             judgeAnswer(says) {