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tortuga_v003_20160304.html
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<html>
<head>
<meta charset="utf-8">
<title>Turtoga kids Graphics gr-v003 -20160204b -</title>
</head>
<body style="padding: 0; margin: 0">
<canvas id="cnv" style="position: fixed; top: 0; left: 0">
</canvas>
<div id="consola" style="position: fixed; padding: 5px; width: 100%; height: 130px; bottom: 0px; background: #000; color: #4F4; font-size: 96pt; font-family: monospace; font-weight: bold; -webkit-box-shadow: 0px 0px 15px #000; -moz-box-shadow: 0px 0px 15px #000">
</div>
<div style="position: fixed; right: 0px; top: 0px; width: 32px; height: 32px">
<img src="info.png" onclick="showInfo();">
</div>
<div id="info" style="display: none; background: #000; color: #EEF; position: fixed; right: 0px; top: 0px; padding: 15px; font-family: tahoma, helvetica, sans; width: 30%; -webkit-box-shadow: 0px 0px 15px #000; -moz-box-shadow: 0px 0px 15px #000">
<div style="position: fixed; right: 0px; top: 0px; width: 32px; height: 32px">
<img src="cerrar.png" onclick="hideInfo();">
</div>
<h1><img src="tortuga.png" align="center" style="margin: 10px">Turtle kids Graphics</h1>
ΑΠΛΗ ΕΚΔΟΣΗ ΤΗΣ logo ΓΙΑ ΜΙΚΡΑ ΠΑΙΔΙΑ Η' ΆΤΟΜΑ ΜΕ ΠΡΟΒΛΗΜΑΤΑ ΌΡΑΣΗΣ!<br><br>
ΕΝΤΟΛΕΣ:
<ul>
<li><b>ΜΠΡΟΣΤΑ X ,ΜΠ χ</b>: ΜΠΡΟΣΤΑ Χ ΒΗΜΑΤΑ</li>
<li><b>ΠΙΣΩ X , ΠΙ Χ</b>: ΠΙΣΩ Χ ΒΗΜΑΤΑ</li>
<li><b>ΔΕΞΙΑ X , ΔΕ χ</b>: ΔΕΞΙΑ Χ ΜΟΙΡΕΣ</li>
<li><b>ΑΡΙΣΤΕΡΑ X, ΑΡ χ</b>: ΑΡΙΣΤΕΡΑ Χ ΜΟΙΡΕΣ</li>
<li><b>ΣΤΑ , ΑΟΡΑΤΟ-ΜΕΛΑΝΙ</b>: ΣΤΥΛΟ ΑΝΩ</li>
<li><b>ΣΤΚ , ΟΡΑΤΟ-ΜΕΛΑΝΙ</b>: ΣΤΥΛΟ ΚΑΤΩ</li>
<li><b>ΕΠΑΝΑΛΑΒΕ X</b>: ΠΧ ΕΠΑΝΑΛΑΒΕ 5 ΜΠ 10 ΔΕ 45</li>
<li><b>clr , ΚΑΘΑΡΙΣΜΟΣ</b>: Clear everything and start over</li>
</ul>
F11 - fullscreen.<br><br>
Works on Google Chrome, Mozilla Firefox or any other standards compliant web browser.<br><br>
This tool was made with the intent to help young kids to be introduced in the art of programming.<br><br>
If you like it or find it useful you can donate with the button below.
All the proceedings will be used to help develop this tool further and help my older girl
(for whom i developed this tool, she hasn't one eye and the other has very low vision, so i decided to help her learn programming which doesn't need too much visual accuracy).<br><br>
<!--
<form action="https://www.paypal.com/cgi-bin/webscr" method="post" align="center">
<input type="hidden" name="cmd" value="_s-xclick">
<input type="hidden" name="hosted_button_id" value="2THMZGBMQUQN6">
<input type="image" src="https://www.paypalobjects.com/WEBSCR-640-20110306-1/en_US/i/btn/btn_donate_SM.gif" border="0" name="submit" alt="PayPal - The safer, easier way to pay online!">
<img alt="" border="0" src="https://www.paypalobjects.com/WEBSCR-640-20110306-1/en_US/i/scr/pixel.gif" width="1" height="1">
</form>
-->
Η Ελληνική έκδοση μπορεί να βρεθει εδώ : <a href="https://github.com/plirof/tortuga-kids-gr">github : tortuga-kids-gr</a>
All the code covered by the <a href="http://www.gnu.org/licenses/gpl.html">GPLv3 license</a>.<br><br>
Developed by John Villar.<br><br>
Twitter: <a href="http://twitter.com/johnvillarz">@johnvillarz</a><br>
E-mail: johnvillarzavatti [at] gmail [dot] com<br>
</div>
<script type="text/javascript">
var prompt = ">";
var linea = "";
var vieja_linea = "";
var tortuga = new Image();
var tortuga_m = {};
tortuga.src = "./tortuga.png"
tortuga.px = 0;
tortuga.py = 0;
tortuga.dx = 0;
tortuga.dy = 0;
tortuga.angulo = 90;
tortuga.dangulo = 90;
var historial = new Array();
var historial_pos = -1;
var cnv = document.getElementById('cnv');
var ctx = cnv.getContext('2d');
var consola = document.getElementById('consola');
var moduloDelta = 0.7;
var dibujar = true;
var intervaloAnim = null;
var intervaloRefresh = null;
var EPSILON = 0.00001;
function forward(a) {
var delta = new Number(a[0]);
var an = tortuga_m.angulo * Math.PI / 180;
tortuga_m.dx = tortuga_m.px + Math.cos(an)*delta;
tortuga_m.dy = tortuga_m.py - Math.sin(an)*delta;
var obj = {x: tortuga_m.dx, y: tortuga_m.dy, a: tortuga_m.dangulo, t: dibujar};
figura.push(obj);
};
function backwards(a) {
var delta = new Number(a[0]);
var an = tortuga_m.angulo * Math.PI / 180;
tortuga_m.dx = tortuga_m.px - Math.cos(an)*delta;
tortuga_m.dy = tortuga_m.py + Math.sin(an)*delta;
var obj = {x: tortuga_m.dx, y: tortuga_m.dy, a: tortuga_m.dangulo, t: dibujar};
figura.push(obj);
};
function right_turn(a) {
var delta = new Number(a[0]);
tortuga_m.dangulo = tortuga_m.angulo - delta;
var obj = {x: tortuga_m.px, y: tortuga_m.py, a: tortuga_m.dangulo, t: dibujar};
figura.push(obj);
};
function left_turn(a) {
var delta = new Number(a[0]);
tortuga_m.dangulo = tortuga_m.angulo + delta;
var obj = {x: tortuga_m.px, y: tortuga_m.py, a: tortuga_m.dangulo, t: dibujar};
figura.push(obj);
};
function clear(a) {
pasoFigura = 0;
figura = new Array();
tortuga_m.px = 0;
tortuga_m.py = 0;
tortuga_m.angulo = 90;
tortuga_m.dx = 0;
tortuga_m.dy = 0;
tortuga_m.dangulo = 90;
dibujar = true;
var obj = {x: tortuga_m.dx, y: tortuga_m.dy, a: tortuga_m.dangulo, t: dibujar};
figura.push(obj);
};
function pen_up(a) {
dibujar = false;
var obj = {x: tortuga_m.px, y: tortuga_m.py, a: tortuga_m.dangulo, t: dibujar};
figura.push(obj);
};
function pen_down(a) {
dibujar = true;
var obj = {x: tortuga_m.px, y: tortuga_m.py, a: tortuga_m.dangulo, t: dibujar};
figura.push(obj);
};
var commands = [
{nom: "ΜΠΡΟΣΤΑ", f: function (a) {
forward(a);
return a.slice(1);
}},
{nom: "ΜΠ", f: function (a) {
forward(a);
return a.slice(1);
}},
{nom: "ΠΙΣΩ", f: function(a) {
backwards(a);
return a.slice(1);
}},
{nom: "ΠΙ", f: function(a) {
backwards(a);
return a.slice(1);
}},
{nom: "ΔΕΞΙΑ", f: function(a) {
right_turn(a);
return a.slice(1);
}},
{nom: "ΔΕ", f: function(a) {
right_turn(a);
return a.slice(1);
}},
{nom: "ΑΡΙΣΤΕΡΑ", f: function(a) {
left_turn(a);
return a.slice(1);
}},
{nom: "ΑΡ", f: function(a) {
left_turn(a);
return a.slice(1);
}},
{nom: "ΣΤΑ", f: function(a) {
pen_up(a);
return a;
}},
{nom: "ΑΟΡΑΤΟ-ΜΕΛΑΝΙ", f: function(a) {
pen_up(a);
return a;
}},
{nom: "ΣΤΚ", f: function(a) {
pen_down(a);
return a;
}},
{nom: "ΟΡΑΤΟ-ΜΕΛΑΝΙ", f: function(a) {
pen_down(a);
return a;
}},
{nom: "ΕΠΑΝΑΛΑΒΕ", f: function(a) {
var reps = new Number(a[0]);
var b = a.slice(1);
var c = new Array();
for (var i=0; i<reps; i++) {
c = c.concat(b);
}
for (var i=0; i<c.length; i++) {
if ((c[i] == "ΕΠΑΝΑΛΑΒΕ")&&(c.length>i+1)) {
c[i+1] = "" +(new Number(c[i+1])-1);
}
}
return c;
}},
{nom: "clr", f: function(a) {
clear(a);
return a;
}},
{nom: "cls", f: function(a) {
clear(a);
return a;
}},
{nom: "ΚΑΘΑΡΙΣΜΟΣ", f: function(a) {
clear(a);
return a;
}},
{nom: "ΝΕΟ", f: function(a) {
clear(a);
return a;
}}
];
var figura = new Array();
var pasoFigura = 0;
cnv.left = 0;
cnv.top = 0;
cnv.width = window.innerWidth;
cnv.height = window.innerHeight;
window.addEventListener ("resize", function() {
cnv.width = window.innerWidth;
cnv.height = window.innerHeight;
}, true);
function actualizarConsola() {
//consola.innerText = prompt + linea.slice(Math.max(0, linea.length-16));
consola.textContent = prompt + linea.slice(Math.max(0, linea.length-16));
};
function moverA(x, y, ang) {
tortuga.px = x;
tortuga.py = y;
tortuga.angulo = ang;
};
function animarTortuga() {
if ((figura.length>0)&&(pasoFigura<figura.length)) {
var p0 = figura[pasoFigura];
tortuga.dx = p0.x;
tortuga.dy = p0.y;
tortuga.dangulo = p0.a;
dibujar = p0.t;
intervaloAnim = setInterval(function() {
var dx = tortuga.dx - tortuga.px;
var dy = tortuga.dy - tortuga.py;
var dang = tortuga.dangulo - tortuga.angulo;
tortuga.pendiente = true;
var eps = 0;
var destX = tortuga.px;
var destY = tortuga.py;
var destAng = tortuga.angulo;
if (dx*dx<EPSILON) {
tortuga.px = tortuga.dx;
eps++;
} else {
destX = tortuga.px + dx * moduloDelta;
}
if (dy*dy<EPSILON) {
tortuga.py = tortuga.dy;
eps++;
} else {
destY = tortuga.py + dy * moduloDelta;
}
if (dang*dang<EPSILON) {
tortuga.angulo = tortuga.dangulo;
eps++;
} else {
destAng = tortuga.angulo + dang * moduloDelta;
}
moverA(destX, destY, destAng);
if (eps >= 3) {
pasoFigura++;
if (pasoFigura < figura.length) {
tortuga.dx = figura[pasoFigura].x;
tortuga.dy = figura[pasoFigura].y;
tortuga.dangulo = figura[pasoFigura].a;
dibujar = figura[pasoFigura].t;
} else {
clearInterval(intervaloAnim);
}
}
}, 35);
}
};
function ejecutar(comando) {
var ops = comando.split(" ");
var t = tortuga;
if (pasoFigura<figura.length-1) {
t = figura[figura.length-1];
t.px = t.x;
t.py = t.y;
t.dx = t.x;
t.dy = t.y;
t.angulo = t.a;
t.dangulo = t.a;
}
tortuga_m = {
px: t.px,
py: t.py,
dx: t.dx,
dy: t.dy,
angulo: t.angulo,
dangulo: t.dangulo
};
while (ops.length>0) {
var ejecuto = false;
for (var i=0; i < commands.length; i++) {
var cmd = commands[i];
if (cmd.nom.slice(0, ops[0].length).toUpperCase() == ops[0].toUpperCase()) {
ops = cmd.f(ops.slice(1));
tortuga_m.px = tortuga_m.dx;
tortuga_m.py = tortuga_m.dy;
tortuga_m.angulo = tortuga_m.dangulo;
ejecuto = true;
break;
}
}
if (!ejecuto) {
break;
}
}
animarTortuga();
}
function completarComando(comando) {
var ops = comando.split(" ");
if (ops.length>0) {
var com = ops[ops.length-1];
for (var i=0; i < commands.length; i++) {
var cmd = commands[i];
if (cmd.nom.slice(0, com.length).toUpperCase() == com.toUpperCase()) {
return (ops.slice(0, ops.length-1).join(" ") + " " + cmd.nom).trim()+" ";
}
}
}
return comando;
};
document.onkeydown = function(ev) {
if (ev.keyCode == 8) { // Borrar
if (linea.length>0) {
linea = linea.slice(0, linea.length-1);
actualizarConsola();
}
return false;
} else if (ev.keyCode == 13) { // Enter
if (linea.length>0) {
ejecutar(linea);
historial.push(linea);
historial_pos = historial.length;
linea = "";
actualizarConsola();
}
} else if (ev.keyCode == 38) { // Arriba
if (historial_pos == historial.length) {
vieja_linea = linea;
}
historial_pos--;
if (historial_pos<0) {
historial_pos = 0;
}
linea = historial[historial_pos];
actualizarConsola();
} else if (ev.keyCode == 40) { // Abajo
historial_pos++;
if (historial_pos<historial.length) {
linea = historial[historial_pos];
} else if (historial_pos==historial.length) {
linea = vieja_linea;
vieja_linea = "";
} else if (historial_pos>historial.length) {
historial_pos = historial.length;
}
actualizarConsola();
} else if (ev.keyCode == 37) { // Izquierda
} else if (ev.keyCode == 39) { // Derecha
} else if (ev.keyCode == 9) { // Tab
linea = completarComando(linea);
actualizarConsola();
return false;
}
};
document.addEventListener("kerydown", document.onkeydown, true);
document.onkeypress = function(ev) {
var ch = String.fromCharCode(ev.charCode);
if (((ch.trim().length>0)||(ch == " "))&& (ev.charCode != 0)) {
linea += ch;
actualizarConsola();
}
};
intervaloRefresh = setInterval(function() {
var cx = cnv.width / 2;
var cy = cnv.height / 2;
var tw = tortuga.width / 2;
var th = tortuga.height / 2;
ctx.fillStyle = "rgb(255, 255, 255)";
ctx.fillRect(0, 0, cnv.width, cnv.height);
ctx.fillStyle = "black";
ctx.lineWidth = 8;
ctx.beginPath();
ctx.lineCap = "round";
ctx.lineJoin = "round";
ctx.moveTo(cx, cy);
var u = Math.min(figura.length-1, pasoFigura);
for (var i=0; i<u; i++) {
var obj = figura[i];
if (obj.t) {
ctx.lineTo(obj.x + cx, cy + obj.y);
} else {
ctx.moveTo(obj.x + cx, cy + obj.y);
}
}
if (u<figura.length) {
if (dibujar) {
ctx.lineTo(cx + tortuga.px, cy + tortuga.py);
} else {
ctx.moveTo(cx + tortuga.px, cy + tortuga.py);
}
}
ctx.stroke();
ctx.save();
ctx.translate(cx + tortuga.px, cy + tortuga.py);
ctx.rotate(-(tortuga.angulo-90) * Math.PI / 180);
ctx.drawImage(tortuga, -tw, -th);
ctx.restore();
}, 15);
function showInfo() {
var elem = document.getElementById("info");
elem.style.display = "block";
};
function hideInfo() {
var elem = document.getElementById("info");
elem.style.display = "none";
};
actualizarConsola();
</script>
</body>
</html>