AI Math Racer: Level Up

The track expands and the math gets harder as you level up! Use Arrow Keys or Swipe to steer.

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Game Over

Your Score: 0

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\n\n \n \n \n\n`;\n}\n\nexport default async function (req: Request) {\n const url = new URL(req.url);\n const action = url.searchParams.get(\"action\");\n\n if (req.method === \"POST\" && action === \"getProblem\") {\n try {\n const openai = new OpenAI();\n const body = await req.json();\n const level = typeof body.level === \"number\" ? body.level : 1;\n\n const messages = [\n {\n role: \"system\",\n content: PROBLEM_GENERATOR_PROMPT.replace(\n \"[level]\",\n level.toString(),\n ),\n },\n {\n role: \"user\",\n content: `The player is on LEVEL ${level}. Generate a problem.`,\n },\n ];\n\n const completion = await openai.chat.completions.create({\n model: \"gpt-4o\",\n messages: messages,\n temperature: 0.8,\n response_format: { type: \"json_object\" },\n });\n\n const content = completion.choices[0].message.content;\n if (!content) {\n throw new Error(\"OpenAI returned an empty response.\");\n }\n\n const parsedContent = extractJson(content);\n if (\n !parsedContent || typeof parsedContent !== \"object\" ||\n !(\"problem\" in parsedContent) ||\n !(\"correctAnswer\" in parsedContent) || !(\"distractors\" in parsedContent)\n ) {\n throw new Error(\"AI returned an invalid or incomplete data structure.\");\n }\n\n return new Response(JSON.stringify(parsedContent), {\n headers: { \"Content-Type\": \"application/json\" },\n status: 200,\n });\n } catch (error) {\n console.error(\"AI Problem Generation Error:\", error);\n return new Response(\n JSON.stringify({\n error: error.message || \"An unknown server error occurred.\",\n }),\n {\n status: 500,\n headers: { \"Content-Type\": \"application/json\" },\n },\n );\n }\n }\n\n // Serve the main HTML file for GET requests\n const sourceUrl = `https://${url.hostname}${url.pathname}`;\n return new Response(generateHtml(sourceUrl), {\n headers: { \"Content-Type\": \"text/html\" },\n });\n}","deleted","label","mathcars",[98],"permalink","https://www.val.town/x/know/cars/code/main.ts","extension","actionData","errors"]