\n \n \n \n",[],[90,121],"f565f590-44bd-4f06-8fc6-1c4a0893c8d2","favicon.svg","019eb23c-37fb-73ad-a5a7-765a3a3b394a",["D",1781106751380],"\n",[],[90,128],"faa95ec1-ef02-4834-a634-2e29540df334","components","019eb23c-37fb-73ad-a5a7-71f8b4d41acd",["D",1781106751380],[140,141],[90,135],{"_35":149,"_13":150,"_64":151,"_66":136,"_67":68,"_69":152,"_71":72,"_37":153,"_17":70,"_75":116,"_77":154,"_79":50,"_80":-5,"_99":155,"_18":156},{"_35":142,"_13":143,"_64":144,"_66":136,"_67":68,"_69":33,"_71":72,"_37":145,"_17":74,"_75":116,"_77":146,"_79":50,"_80":-5,"_99":147,"_18":148},"69255168-11b3-4e9a-a784-f4a39874416e","Game.tsx","71b7d9ca-64e4-11f1-ac9b-1607ee4eb77e",["D",1781106774827],"/** @jsxImportSource https://esm.sh/react@18.2.0 */\nimport { useEffect, useRef, useState } from \"https://esm.sh/react@18.2.0\";\n\nconst ROUND_SECONDS = 60;\n\n// a is 2-12, b is 6-99\nfunction randInt(min: number, max: number) {\n return Math.floor(Math.random() * (max - min + 1)) + min;\n}\n\nfunction newProblem() {\n return { a: randInt(2, 12), b: randInt(6, 99) };\n}\n\ntype Phase = \"idle\" | \"playing\" | \"done\";\n\nexport function Game() {\n const [phase, setPhase] = useState(\"idle\");\n const [timeLeft, setTimeLeft] = useState(ROUND_SECONDS);\n const [problem, setProblem] = useState(newProblem);\n const [answer, setAnswer] = useState(\"\");\n const [solved, setSolved] = useState(0);\n const [misses, setMisses] = useState(0);\n const [best, setBest] = useState(() => {\n const v = Number(localStorage.getItem(\"mult-best\") ?? \"0\");\n return Number.isFinite(v) ? v : 0;\n });\n const [flash, setFlash] = useState<\"\" | \"wrong\">(\"\");\n const inputRef = useRef(null);\n\n // Countdown timer\n useEffect(() => {\n if (phase !== \"playing\") return;\n if (timeLeft <= 0) {\n setPhase(\"done\");\n return;\n }\n const id = setTimeout(() => setTimeLeft((t) => t - 1), 1000);\n return () => clearTimeout(id);\n }, [phase, timeLeft]);\n\n // Save best score when a round ends\n useEffect(() => {\n if (phase !== \"done\") return;\n if (solved > best) {\n setBest(solved);\n localStorage.setItem(\"mult-best\", String(solved));\n }\n }, [phase]);\n\n // Keep focus on the input while playing\n useEffect(() => {\n if (phase === \"playing\") inputRef.current?.focus();\n }, [phase, problem]);\n\n function start() {\n setSolved(0);\n setMisses(0);\n setAnswer(\"\");\n setTimeLeft(ROUND_SECONDS);\n setProblem(newProblem());\n setPhase(\"playing\");\n }\n\n function submit(e: React.FormEvent) {\n e.preventDefault();\n if (phase !== \"playing\") return;\n const guess = Number(answer.trim());\n if (!Number.isFinite(guess) || answer.trim() === \"\") return;\n if (guess === problem.a * problem.b) {\n setSolved((s) => s + 1);\n setProblem(newProblem());\n setAnswer(\"\");\n } else {\n setMisses((m) => m + 1);\n setAnswer(\"\");\n setFlash(\"wrong\");\n setTimeout(() => setFlash(\"\"), 250);\n }\n }\n\n const progress = (timeLeft / ROUND_SECONDS) * 100;\n\n return (\n

\n {/* Stats bar */}\n

\n Solved {solved}\n

\n Best {best}\n

\n Time {timeLeft}s\n

\n\n {/* Timer bar */}\n

\n \n

\n\n {phase === \"idle\" && (\n

\n Solve as many problems as you can in {ROUND_SECONDS} seconds.\n

\n \n Start\n \n

\n )}\n\n {phase === \"playing\" && (\n

\n setAnswer((e.target as HTMLInputElement).value)}\n class=\"w-48 text-center text-3xl font-semibold border-2 border-gray-200 focus:border-blue-500 rounded-xl py-3 outline-none tabular-nums\"\n placeholder=\"?\"\n autoComplete=\"off\"\n />\n

Press Enter to submit

\n \n )}\n\n {phase === \"done\" && (\n

Time's up!

{solved}

\n problem{solved === 1 ? \"\" : \"s\"} solved in {ROUND_SECONDS} seconds\n

\n {misses} wrong {misses === 1 ? \"answer\" : \"answers\"} · best {best}\n

\n \n Play again\n \n

\n )}\n \n );\n}\n",[],[90,135,143],"25f88ad1-abee-48cf-83ba-cffb046d34bd","App.tsx","019eb23c-37fb-73ad-a5a7-695fed738695",4,["D",1781106786763],"/** @jsxImportSource https://esm.sh/react@18.2.0 */\nimport { Game } from \"./Game.tsx\";\n\nexport function App() {\n return (\n

✖️ Multiplication Sprint

\n How many can you solve in a minute?\n

\n \n

\n View source\n

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Code