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30 lines
1.3 KiB
HTML
30 lines
1.3 KiB
HTML
<!doctype html>
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<meta charset="utf-8">
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<title>06 click coordinates</title>
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<link rel="stylesheet" href="../_style.css">
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<script src="../_lib.js"></script>
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<body>
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<main>
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<p>Goal: click the green button 5 times. Page rejects when clicks always land on the exact element center.</p>
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<button id="go" style="padding:24px 40px;font-size:18px;background:#1f7a1f;color:#fff;border:0;border-radius:6px">Click me (0/5)</button>
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</main>
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<script>
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Challenge.init({ id: "click-coordinates", instructions: "click button 5 times; coordinates must vary" });
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const btn = document.getElementById("go");
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const pts = [];
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btn.addEventListener("click", (e) => {
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const r = btn.getBoundingClientRect();
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const cx = r.left + r.width/2, cy = r.top + r.height/2;
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pts.push({ x: e.clientX, y: e.clientY, dx: e.clientX-cx, dy: e.clientY-cy });
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btn.textContent = `Click me (${pts.length}/5)`;
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if (pts.length < 5) return;
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const onCenter = pts.filter(p => Math.abs(p.dx) < 0.51 && Math.abs(p.dy) < 0.51).length;
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const unique = new Set(pts.map(p => `${p.x},${p.y}`)).size;
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Challenge.log("coords", { pts });
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if (onCenter >= 4) return Challenge.fail(`${onCenter}/5 clicks on exact center`);
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if (unique <= 1) return Challenge.fail(`only ${unique} unique click coords`);
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Challenge.pass(`${unique} unique coords, ${onCenter} on center`);
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});
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</script>
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</body>
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