javascriptが実現したシンプルなタイピングゲームです.

3408 ワード

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>      </title>
<style type="text/css">
	.label{
		position:absolute;left: 0px;
	}
</style>
<script type="text/javascript" src="game.js"></script>
</head>
<body>
	<div id="msg"></div>
	<input id="startBtn" type="button" value="    " onclick="startGame(this)"/>
	<input type="button" value="    " onclick="stopGame()"/>
</body>
</html>

var CODE = "QWERTYUIOPASDFGHJKLZXCVBNM";
var codeArray = [];
var number = 0; 

//       
function createCode(){
	//0-25
	var index = parseInt(Math.random()*26);
	return CODE.charAt(index);
};

//    label  
function createLabel(code){
	/**
	 * <label class="label">
			A
		</label>
	 */
	var label = document.createElement("label");
	label.className = "label";
	label.style.top = "50px";
	label.innerHTML = code;
	label.code = code;
	
	var html = document.documentElement;
	
	//  label   x  
	var labelX = parseInt(Math.random()*html.clientWidth);
	if(labelX>100){
		labelX-=20;
	}
	
	label.style.left = labelX+"px";
	
	return label;
}

window.onload = function(){
	document.getElementById("startBtn").disabled = false;
	
	
	//      
	document.documentElement.onkeydown=function(event){
		var keyCode = event.keyCode; //      
		var code = String.fromCharCode(keyCode);//A-Z
		for ( var i = 0; i < codeArray.length; i++) {
			//label  
			var label = codeArray[i];
			if(label.code==code){
					clearInterval(label.interval_id);
					label.parentNode.removeChild(label);
					codeArray.splice(i,1);
					number+=10;
					
					document.getElementById("msg").innerHTML = number+" ";
				break;
			}
		}
	};
};

// label           
function runLabelTop(label){
	
	//       
	var height = Math.max(document.documentElement.clientHeight,document.documentElement.scrollHeight);
	
	label.interval_id = setInterval(function(){
		//50px
		var top = parseInt(label.style.top);
		top+=1;
		//  label           
		if(top>height-30){
			removeLabel(label,false);
		}else{
			label.style.top = top+"px";
		}
	},10);
}

//flag = false         
function removeLabel(label,flag){
	clearInterval(label.interval_id);
	label.parentNode.removeChild(label);
	codeArray.shift();
	number-=20;
	document.getElementById("msg").innerHTML = number+" ";
}

var game_id = null;

//    
function startGame(startButton){
	
	startButton.disabled = true;
	
	game_id = setInterval(function(){
		//        
		var code =createCode();
		//    label    
		var label = createLabel(code);
		
		// label        ,     style.top  
		runLabelTop(label);
		
		// label         
		document.body.appendChild(label);
		codeArray.push(label);
	},1000);
}

//    
function stopGame(){
	clearInterval(game_id);
	for ( var i = 0; i < codeArray.length; i++) {
		clearInterval(codeArray[i].interval_id);
		codeArray[i].parentNode.removeChild(codeArray[i]);
	}
	codeArray = [];
	document.getElementById("startBtn").disabled = false;
}

【codewars】Maximum subarray sum【最大サブシーケンスの和を求める】