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<!DOCTYPE html>
<html>
<head>
<!-- META -->
<title>p5.turtle.js - p5.jsのためのタートルグラフィックプログラム</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
<meta name="description" content="turtle graphics for p5.js" />
<!-- CSS -->
<link rel="stylesheet" type="text/css" href="css/kickstart.css" media="all" />
<link rel="stylesheet" type="text/css" href="style.css" media="all" />
<!-- Javascript -->
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script type="text/javascript" src="js/kickstart.js"></script>
</head>
<body>
<nav class="navbar">
<a class="hide-phone" id="logo" href="http://www.catch.jp/"><i class="fa fa-hand-o-right"></i> <span>catch.jp</span></a>
<ul>
<li><a href="https://github.com/ycatch"><span>ycatch - Github</span></a></li>
<li><a href="index.html">English</a></li>
<li>[日本語]</li>
</ul>
</nav>
<div class="grid">
<div class="col_6" style="margin-top:100px;">
<h1><img src="images/turtle_2.png" width="54" hight="63"> p5.turtle.js</h1>
<h4 style="color:#999;">p5.jsのためのタートルグラフィックプログラム</h4>
<p>これは、シンプルでアニメーションするタートルグラフィックプログラムです。処理は、2つのステップがあります。最初に、setup()の中で、タートルの動きを記録します。2番目に、draw()の中で、タートルの動きをアニメーションで表示します。このプログラムは、p5.jsとp5.play.jsライブラリを必要とします。</p>
<p><a href='https://github.com/ycatch/p5.turtle.js/archive/master.zip' target='_blank'>
<button class="large red"><i class="fa fa-download"></i> Download ZIP</button>
</a></p>
<p><a href='https://github.com/ycatch/p5.turtle.js/blob/master/p5.turtle.js' target='_blank'>View Source</a></p>
</div>
<div class="col_4" style="margin-top:100px;">
<div id = "p5Canvas"></div>
</div>
<div class="col_12">
<pre id="code_0" hidden>
var turtles_path = []; // array of Turtle objects
var pathPointer = 0;
var turtle;
var turtleSprite;
var tPlane; // graphic plane for pen layer
setup = function() {
var canvas = createCanvas(480, 360);
canvas.parent("p5Canvas");
background(200);
turtleSprite = createSprite(0, 0, 56, 64);
turtleSprite.addAnimation("moving", "images/turtle_1.png", "images/turtle_4.png");
turtleSprite.changeAnimation("moving");
tPlane = createGraphics(width, height); // pen layer
// Start turtle code - recode turtle moving. -------------------------------------
</pre>
<p></p>
<h4>編集</h4>
<textarea name="code_1" rows=30 cols=120>
turtle = new Turtle();
turtle.x = 200;
turtle.y = 180;
turtle.penColor = turtle.color.blue;
for(var i = 0; i < 18; i++){
for(var j = 0; j < 360; j++){
turtle.penDown = true;
turtle.forward(1);
turtle.right(1);
};
turtle.penDown = false;
turtle.forward(10);
turtle.left(20);
};
turtle.right(360);
turtle.right(360);
</textarea>
<p></p>
<input type="button" onclick="restart()" value="Re-Start">
<p><a href='https://github.com/ycatch/p5.turtle.js/blob/master/README.ja.md' target='_blank'>ヘルプ</a></p>
<pre id="code_2" hidden>
// End of turtle code ------------------------------------------------------------
};
draw = function() {
// Playback turtle moving for animation.
background(200);
turtle.draw(pathPointer);
image(tPlane);
drawSprites();
pathPointer += 1;
if (pathPointer >= turtles_path.length) {
pathPointer = 0;
clear();
}
};
/** utility */
function clear() {
background(200);
tPlane.fill(200);
tPlane.noStroke();
tPlane.rect(0, 0, width, height);
}
/** Turtle Data */
function TBody() {
this.x = 200;
this.y = 60;
this.step = 3;
this.stepAngle = Math.PI / 36;
this.angleInRadians = 0;
this.penDown = false;
this.penColor = "#000000";
this.lineWidth = 2;
};
/** Turtle class */
function Turtle() {
var body = new TBody();
for (var prop in body) {
this[prop] = body[prop];
}
this.color = {
black : "#000000",
gray: "#808080",
lightgray: "#C0C0C0",
red: "#ff0000",
green: "#00ff00",
blue: "#0000ff",
yellow: "#ffff00",
magenta: "#ff00ff",
aqua: "#00ffff",
white: "#ffffff"
};
this.forward = function(length) {
var x0 = this.x;
var y0 = this.y;
var xx = sin(this.angleInRadians);
var yy = cos(this.angleInRadians);
var count = abs(int(length / this.step));
var dir = 1;
if(length < 0) {dir = -1};
for(var i=0; i < count - 1; i++) {
this.x += dir * this.step * xx;
this.y += dir * this.step * yy;
this.copy();
}
this.x = x0 + length * xx;
this.y = y0 + length * yy;
this.copy();
};
this.back = function(length) {
this.forward(-length);
};
this.left = function(angleInDegrees) {
var angle0 = this.angleInRadians;
var targetAngle = angleInDegrees * Math.PI / 180.0;
var count = abs(int(targetAngle / this.stepAngle));
var dir = 1;
if(targetAngle < 0) {dir = -1};
for(var i=0; i < count - 1; i++) {
this.angleInRadians += dir * this.stepAngle;
this.copy();
}
this.angleInRadians = angle0 + targetAngle;
this.copy();
};
this.right = function(angleInDegrees) {
this.left(-angleInDegrees);
};
// copy TBody object
this.copy = function() {
turtles_path.push(new TBody());
var target = turtles_path[turtles_path.length - 1];
for (var prop in this) {
target[prop] = this[prop];
}
};
// drawing turtle in loop
this.draw = function(pointer) {
var target = turtles_path[pointer];
// draw path by Pen
if (target.penDown) {
tPlane.strokeWeight(target.lineWidth);
tPlane.stroke(target.penColor);
var nextPointer = pointer + 1;
if(nextPointer >= turtles_path.length) {
nextPointer = 0;
}
tPlane.line(target.x, target.y, turtles_path[nextPointer].x, turtles_path[nextPointer].y);
}
// draw turtle image by sprite
turtleSprite.rotation = target.angleInRadians * -180 / Math.PI + 180;
turtleSprite.position.x = target.x;
turtleSprite.position.y = target.y;
};
};
</pre>
</div>
<div class="col_12">
<h2>始め方</h2>
<h3>1.ダウンロード</h3>
<p>次のファイルをダウンロードして解凍しておく</p>
<ul>
<li>p5.turtle.js - <a href='https://github.com/ycatch/p5.turtle.js/archive/master.zip' target='_blank'>download</a></li>
</ul>
<h3>2.HTML</h3>
<p>同じフォルダの中にHTMLファイルを作成して、次のエレメントを設置する</p>
<!-- Code HTML -->
<pre><div id = "p5Canvas"></div></pre>
<h3>3.Javascript</h3>
<p>HTMLファイルに次のライブラリを設置する</p>
<!-- Code Javascript -->
<pre>
<script src="js/p5.js"></script>
<script src="js/p5.play_patch119.js"></script>
<script src="p5.turtle.js"></script></pre>
<h3>4.タートルコードを編集する</h3>
<p>p5.turtle.jsにある、次のタートルコードを自分の好みに編集する</p>
<!-- Code Javascript -->
<pre>
// Start turtle code - recode turtle moving. -------------------------------------
turtle = new Turtle();
turtle.x = 140;
turtle.y = 80;
turtle.penDown = true;
turtle.penColor = turtle.color.blue;
for(var i = 0; i < 4; i++){
turtle.forward(200);
turtle.left(90);
};
turtle.right(360);
turtle.right(360);
// End of turtle code ------------------------------------------------------------</pre>
<h2>見本</h2>
<ul>
<li><a href='example/basic/index.html'>基本形</a></li>
<li><a href='example/instance_w_play/index.html'>インスタンスモード、スプライトあり</a></li>
<li><a href='example/instance_mode/index-is-animation.html'>インスタンスモード、アニメーションあり</a></li>
<li><a href='example/instance_mode/index-is-sandbox.html'>インスタンスモード サンドボックス、アニメーションあり</a></li>
<li><a href='example/instance_mode/index.html'>インスタンスモード、アニメーションなし</a></li>
</ul>
</div>
<div class="col_12">
<h2>リンク</h2>
<ul>
<li><a href='README.md' target='_blank'>コマンドリファレンス</a></li>
<li><a href='http://p5js.org/' target='_blank'>p5.js</a></li>
<li><a href='http://p5play.molleindustria.org/' target='_blank'>p5.play.js</a></li>
<li><a href='https://github.com/ycatch/p5.turtle.js' target='_blank'>Github - p5.turtle.js</a></li>
</ul>
</div>
<div class="col_12" id="footer">
Copyright 2015 Yutaka Kachi released under MIT License.
</div>
</div> <!-- End Grid -->
<script src="js/p5.js"></script>
<script src="js/p5.play_patch119.js"></script>
<!-- <script src="p5.turtle.js"></script> -->
<script>
var Pjs;
run()
function restart() {
location.reload();
}
function run(){
//console.log("Run");
var code_1 = document.getElementById('code_0').textContent;
var code_2 = document.getElementsByName('code_1')[0].value;
var code_3 = document.getElementById('code_2').textContent;
var s = new Function(code_1 + code_2 + code_3);
Pjs = new p5(s);
}
</script>
</body>
</html>