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No:2313

5884

Math RPG (1) A calculation problem will be present..ALL
Developer anonymous｜Date and time 23/8/14 16:22:41
Build time unknown sec｜Game capacity 2.132KB｜

Math RPG

Defeat your enemies!

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[PR]現在のフィギュア売れ筋ランキング

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<!DOCTYPE html>
<html>
<head>
	<title>さんすうRPG</title>
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
</head>
<body onload="generateQuestion()">
	<h1>さんすうRPG</h1>
	<p>敵を倒しましょう！</p>
	<div id="question"></div>
	<input type="number" id="answer">
	<button onclick="checkAnswer()">答える</button>
	<p id="result"></p>
	<p id="enemy"></p>
	<script>
		var enemyCount = 0;
		var difficulty = 1;

function generateQuestion() {
			var num1 = Math.floor(Math.random() * 10 * difficulty) + 1;
			var num2 = Math.floor(Math.random() * 10 * difficulty) + 1;
			var operator = Math.floor(Math.random() * 4);
			var questionText;
			switch (operator) {
				case 0:
					questionText = num1 + " + " + num2 + " = ";
					answer = num1 + num2;
					break;
				case 1:
					if (num1 < num2) {
						var temp = num1;
						num1 = num2;
						num2 = temp;
					}
					questionText = num1 + " - " + num2 + " = ";
					answer = num1 - num2;
					break;
				case 2:
					num1 = Math.floor(Math.random() * 10 * Math.sqrt(difficulty)) + 1;
					num2 = Math.floor(Math.random() * 10 * Math.sqrt(difficulty)) + 1;
					questionText = num1 + " × " + num2 + " = ";
					answer = num1 * num2;
					break;
				case 3:
					num2 = Math.floor(Math.random() * 10 * Math.sqrt(difficulty)) + 1;
					num1 = num2 * (Math.floor(Math.random() * 9) + 1);
					questionText = num1 + " ÷ " + num2 + " = ";
					answer = num1 / num2;
					break;
			}
			document.getElementById("question").innerHTML = questionText;
			document.getElementById("answer").value = "";
		}

function checkAnswer() {
			var userAnswer = parseInt(document.getElementById("answer").value);
			if (userAnswer === answer) {
				enemyCount++;
				difficulty++;
				document.getElementById("result").innerHTML = "正解！　" + enemyCount + "番目の敵に勝利しました！";
				document.getElementById("enemy").innerHTML = "次の敵が現れました！";
				generateQuestion();
			} else {
				document.getElementById("result").innerHTML = "不正解。もう一度挑戦しましょう。";
			}
		}
	</script>
</body>
</html>