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bundle.js
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/******/ (function(modules) { // webpackBootstrap
/******/ // The module cache
/******/ var installedModules = {};
/******/
/******/ // The require function
/******/ function __webpack_require__(moduleId) {
/******/
/******/ // Check if module is in cache
/******/ if(installedModules[moduleId]) {
/******/ return installedModules[moduleId].exports;
/******/ }
/******/ // Create a new module (and put it into the cache)
/******/ var module = installedModules[moduleId] = {
/******/ i: moduleId,
/******/ l: false,
/******/ exports: {}
/******/ };
/******/
/******/ // Execute the module function
/******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
/******/
/******/ // Flag the module as loaded
/******/ module.l = true;
/******/
/******/ // Return the exports of the module
/******/ return module.exports;
/******/ }
/******/
/******/
/******/ // expose the modules object (__webpack_modules__)
/******/ __webpack_require__.m = modules;
/******/
/******/ // expose the module cache
/******/ __webpack_require__.c = installedModules;
/******/
/******/ // identity function for calling harmony imports with the correct context
/******/ __webpack_require__.i = function(value) { return value; };
/******/
/******/ // define getter function for harmony exports
/******/ __webpack_require__.d = function(exports, name, getter) {
/******/ if(!__webpack_require__.o(exports, name)) {
/******/ Object.defineProperty(exports, name, {
/******/ configurable: false,
/******/ enumerable: true,
/******/ get: getter
/******/ });
/******/ }
/******/ };
/******/
/******/ // getDefaultExport function for compatibility with non-harmony modules
/******/ __webpack_require__.n = function(module) {
/******/ var getter = module && module.__esModule ?
/******/ function getDefault() { return module['default']; } :
/******/ function getModuleExports() { return module; };
/******/ __webpack_require__.d(getter, 'a', getter);
/******/ return getter;
/******/ };
/******/
/******/ // Object.prototype.hasOwnProperty.call
/******/ __webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };
/******/
/******/ // __webpack_public_path__
/******/ __webpack_require__.p = "";
/******/
/******/ // Load entry module and return exports
/******/ return __webpack_require__(__webpack_require__.s = 2);
/******/ })
/************************************************************************/
/******/ ([
/* 0 */
/***/ (function(module, exports, __webpack_require__) {
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const css = `
* { font-family: monospace; }
div {
min-height: 1em;
margin-bottom: 5px;
}
`;
let actualMain = null;
function replay() {
let trash = [];
let coll = document.body.children;
let foundHr = false;
for (let i = 0; i < coll.length; i++) {
let child = coll.item(i);
if (!foundHr) {
if (child.tagName === 'HR') {
foundHr = true;
}
continue;
}
trash.push(child);
}
trash.forEach(child => document.body.removeChild(child));
actualMain();
}
function createReplayButton() {
let btn = document.createElement('button');
btn.innerHTML = '↻';
btn.addEventListener('click', replay);
document.body.appendChild(btn);
let hr = document.createElement('hr');
document.body.appendChild(hr);
}
function wrapmain(main) {
actualMain = main;
return () => {
addCss(css);
createReplayButton();
main();
};
}
exports.wrapmain = wrapmain;
function addCss(css) {
let style = document.createElement('style');
style.innerHTML = css;
document.head.appendChild(style);
}
function delay(ms) {
return new Promise(resolve => {
setTimeout(resolve, ms);
});
}
function input(msg = "") {
let div = document.createElement("div");
let span = document.createElement("span");
span.innerText = msg;
div.appendChild(span);
let elem = document.createElement("input");
elem.setAttribute("type", "text");
div.appendChild(elem);
document.body.appendChild(div);
elem.focus();
return new Promise(resolve => {
elem.addEventListener("keyup", ke => {
if (ke.keyCode == 13 && elem.value.trim() !== '') {
elem.readOnly = true;
let val = elem.value.trim();
if (/^\d+$/.test(val))
resolve(Number(val));
else
resolve(elem.value);
}
});
});
}
exports.input = input;
function print(msg = "") {
let s = String(msg);
if (s.trim() === "")
s += " ";
let elem = document.createElement("div");
elem.innerText = s;
document.body.appendChild(elem);
}
exports.print = print;
/***/ }),
/* 1 */
/***/ (function(module, exports, __webpack_require__) {
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const parser_1 = __webpack_require__(3);
function vecAdd(a, b) {
return { x: a.x + b.x, y: a.y + b.y };
}
function vecMul(a, b) {
return { x: a.x * b, y: a.y * b };
}
function vecAvg(a, b) {
return vecMul(vecAdd(a, b), 0.5);
}
/**
* Turtle class for drawing cool pictures.
* @example let t = new Turtle();
*/
class Turtle {
/**
* Creates a canvas and initializes the turtle at the center.
* @param width Width of the canvas.
* @param height Height of the canvas.
*/
constructor(width = 320, height = 320) {
this._divElem = HTMLDivElement = null;
this._elem = null;
this._overlayElem = null;
this._ctx = null;
this._overlayCtx = null;
this._pos = { x: 0, y: 0 };
this._dirAngle = 0;
this._penDown = true;
this._width = 0;
this._height = 0;
this._color = "black";
this._penWidth = 1;
this._showTurtle = true;
this._consoleVisible = false;
this._consoleElem = null;
this._liveMode = false;
this._interactiveMode = false;
this._posStack = [];
this._drawTurtleCache = {
color: 0,
};
this._penStack = [];
this._width = width;
this._height = height;
let divElem = document.createElement('div');
divElem.style.display = 'inline-block';
divElem.style.width = String(width);
divElem.style.height = String(height);
divElem.style.border = "1px solid black";
divElem.style.backgroundColor = 'white';
divElem.style.position = "relative";
divElem.style.display = 'inline-flex';
divElem.style.overflow = 'auto';
divElem.style.flexDirection = 'column';
window.addEventListener('keyup', (evt) => {
//console.log(evt);
if (evt.key === 'F2') {
this.toggleConsole();
}
});
let elem = document.createElement('canvas');
elem.setAttribute("width", String(width));
elem.setAttribute("height", String(height));
divElem.appendChild(elem);
let elem2 = document.createElement('canvas');
elem2.setAttribute("width", String(width));
elem2.setAttribute("height", String(height));
elem2.style.pointerEvents = 'none';
elem2.style.position = "absolute";
elem2.style.left = "0";
elem2.style.top = "0";
divElem.appendChild(elem2);
let consoleElem = document.createElement('textarea');
consoleElem.setAttribute('contenteditable', 'true');
consoleElem.setAttribute('spellcheck', 'false');
consoleElem.setAttribute('wrap', 'off');
consoleElem.style['display'] = 'inline-block';
//consoleElem.style['min-width'] = '200px';
//consoleElem.style['max-width'] = '200px';
consoleElem.style['min-height'] = '300px';
consoleElem.style['overflow'] = 'auto';
consoleElem.style['white-space'] = 'pre';
//consoleElem.style['min-height'] = '100px';
consoleElem.style['border'] = '1px solid gray';
consoleElem.style['margin'] = '0px';
consoleElem.setAttribute('autocapitalize', 'none');
//consoleElem.innerHtml = "Hello";
consoleElem.addEventListener('keyup', evt => {
if (evt.keyCode == 13 && this._interactiveMode) {
//console.log(evt);
let value = evt.target['value'].slice(0, evt.target['selectionStart'] - 1);
value = value.match(/[^\n]*$/)[0];
//console.log({val:value});
this.command(value);
}
});
consoleElem.addEventListener('keydown', evt => {
//console.log(evt);
//evt.preventDefault();
if (evt.key === 'r' && evt.ctrlKey) {
evt.preventDefault();
// console.log(evt);
this.reset();
this.execute(consoleElem.innerText || consoleElem.value);
//consoleElem.innerHTML = `<span style='border-bottom:2px dotted red;'>${consoleElem.innerText}</span>`;
//console.log(["innerTxt", consoleElem.innerText])
}
else if (evt.key == 'l' && evt.ctrlKey) {
evt.preventDefault();
this._liveMode = !this._liveMode;
if (this._liveMode) {
this._interactiveMode = false;
consoleElem.style.border = '1px solid red';
consoleElem.style.backgroundColor = '#FEE';
}
else {
consoleElem.style.border = '1px solid gray';
consoleElem.style.backgroundColor = '#FFF';
}
}
else if (evt.key == 'i' && evt.ctrlKey) {
evt.preventDefault();
this._interactiveMode = !this._interactiveMode;
if (this._interactiveMode) {
this._liveMode = false;
consoleElem.style.border = '1px solid green';
consoleElem.style.backgroundColor = '#EFE';
}
else {
consoleElem.style.border = '1px solid gray';
consoleElem.style.backgroundColor = '#FFF';
}
}
});
consoleElem.addEventListener('input', (evt) => {
if (!this._liveMode)
return;
this.reset();
this.execute(evt.target['value']);
//for (let line of lines) {
// this.command(line);
//}
});
//consoleElem.setAttribute('rows', '100');
//consoleElem.setAttribute('cols', '50');
divElem.appendChild(consoleElem);
this._consoleElem = consoleElem;
this._consoleElem.style.display = this._consoleVisible ? 'inline-block' : 'none';
document.body.appendChild(divElem);
this._divElem = divElem;
this._elem = elem;
this._overlayElem = elem2;
this._ctx = elem.getContext('2d');
this._overlayCtx = elem2.getContext('2d');
this._pos = { x: width / 2, y: height / 2 };
//this._ctx.imageSmoothingEnabled = true;
//this._ctx.setTransform(1, 0, 0, -1, width / 2, height / 2);
//this._overlayElem.style['mix-blend-mode'] = 'exclusion';
//this._overlayCtx.moveTo(0, 0);
//this._overlayCtx.lineTo(100, 100);
//this._overlayCtx.stroke();
setInterval(this.drawTurtle.bind(this), 100);
let fsBtn = document.createElement('button');
fsBtn.innerText = "fullscreen";
fsBtn.addEventListener('click', e => {
//console.log(document.webkitFullscreenElement);
if (document.webkitFullscreenElement === null)
this._divElem.webkitRequestFullscreen();
else
document.webkitExitFullscreen();
});
this._divElem.appendChild(fsBtn);
this.clear();
}
command(input) {
if (input[0] === '#')
return;
let tokens = input.toUpperCase().split(' ').filter(t => t);
if (tokens.length == 0)
return;
let comm = tokens[0];
let arg1 = tokens.length >= 2 ? tokens[1] : null;
switch (comm) {
case 'LEFT':
case 'LT':
arg1 && this.left(Number(arg1));
break;
case 'RIGHT':
case 'RT':
arg1 && this.right(Number(arg1));
break;
case 'FORWARD':
case 'FD':
arg1 && this.forward(Number(arg1));
break;
case 'BACKWARD':
case 'BACK':
case 'BK':
arg1 && this.forward(-Number(arg1));
break;
case 'THICK':
case 'THICKNESS':
arg1 && (this.thickness = Number(arg1));
break;
case 'CLEAR':
case 'CLR':
this.clear();
break;
case 'RESET':
this.reset();
break;
case 'PENUP':
case 'PU':
this.penUp();
break;
case 'PENDOWN':
case 'PD':
this.penDown();
break;
case 'HIDE':
this.hide();
break;
case 'SHOW':
this.show();
break;
case 'COL':
case 'COLOR':
this.color = arg1;
break;
case 'PUSHPOS':
this.pushPos();
break;
case 'POPPOS':
this.popPos();
break;
case 'HOME':
this.home();
break;
case 'HSL':
if (arg1 && arg1 === '@ANGLE') {
this.color = this.hsl(this.angle);
}
}
//let m = input.match(/^\s*(left|lt)\s+([0-9]+)\s*$/i);
//if (m) {
// this.left(Number(m[2]));
// }
}
execute(script) {
//console.log(["Parsing:", script]);
script += "\n";
let frame = new class {
constructor() {
this.frame = {};
this.procs = {};
}
setVar(name, val) {
this.frame[name] = val;
}
getVar(name) {
return this.frame[name];
}
setProc(name, params, body) {
this.procs[name] = { name: name, params: params, body: body };
}
getProc(name) {
return this.procs[name];
}
get values() { return this.frame; }
};
let execBody = null;
let assert = (cond, msg = "") => {
if (!cond)
throw SyntaxError(msg);
};
let evalExpr = null;
let evalFunc = (func, params) => {
let param1 = () => evalExpr(params[0]);
switch (func) {
case "@sin":
return Math.sin(param1() * Math.PI / 180);
case "@cos":
return Math.sin(param1() * Math.PI / 180);
case "@sqrt":
return Math.sqrt(param1());
}
};
evalExpr = (expr) => {
if (typeof expr === 'number') {
return expr;
}
else if (typeof expr === 'string') {
return frame.getVar(expr);
}
else if (expr.node === "Expression") {
let total = evalExpr(expr.terms[0]);
for (let i = 1; i < expr.terms.length; i++) {
let val = evalExpr(expr.terms[i]);
switch (expr.ops[i - 1]) {
case '+':
total += val;
break;
case '-':
total -= val;
break;
}
}
return total;
}
else if (expr.node === "Expression:Call") {
return evalFunc(expr.func, expr.params);
}
else if (expr.node === "Term") {
let total = evalExpr(expr.factors[0]);
for (let i = 1; i < expr.factors.length; i++) {
let val = evalExpr(expr.factors[i]);
switch (expr.ops[i - 1]) {
case '*':
total *= val;
break;
case '/':
total /= val;
break;
}
}
return total;
}
else
console.log(['Cant evaluate', expr]);
};
let execCommand = (cmd, params) => {
switch (cmd.toUpperCase()) {
case 'FD':
case 'FORWARD':
assert(params.length >= 1, "FORWARD requires 1 parameter.");
this.forward(evalExpr(params[0]));
break;
case 'BK':
case 'BACKWARD':
assert(params.length >= 1, "BACKWARD requires 1 parameter.");
this.forward(-evalExpr(params[0]));
break;
case 'LT':
case 'LEFT':
assert(params.length >= 1, "LEFT requires 1 parameter.");
this.left(evalExpr(params[0]));
break;
case 'RT':
case 'RIGHT':
assert(params.length >= 1, "RIGHT requires 1 parameter.");
this.right(evalExpr(params[0]));
break;
case 'HIDE':
this.hide();
break;
case 'SHOW':
this.show();
break;
case 'PENUP':
case 'PU':
this.penUp();
break;
case 'PENDOWN':
case 'PD':
this.penDown();
break;
case 'HOME':
this.home();
break;
case 'PUSHPOS':
this.pushPos();
break;
case 'POPPOS':
this.popPos();
break;
case 'THICK':
case 'THICKNESS':
assert(params.length >= 1, "THICKNESS requires 1 parameter.");
this.thickness = evalExpr(params[0]);
break;
case 'SCREEN':
assert(params.length >= 2, "SCREEN requires 2 parameter.");
this.screen(evalExpr(params[0]), evalExpr(params[1]));
break;
default:
console.log(["Cant execute:", cmd, params]);
}
};
let execRepeat = (count, body) => {
let actualCount = 0;
if (typeof count === 'string') {
actualCount = frame.getVar(count);
}
else
actualCount = count;
for (let i = 0; i < actualCount; i++)
execBody(body);
};
let execLet = (ident, val) => {
frame.setVar(ident, val);
//console.log(frame.values);
};
let execAssign = (ident, val) => {
frame.setVar(ident, val);
//console.log(frame.values);
};
let execStatement = (s) => {
//console.log(s);
switch (s.node) {
case 'Statement:Command':
execCommand(s.command, s.params);
break;
case 'Statement:Repeat':
execRepeat(s.count, s.body);
break;
case 'Statement:Color':
switch (s.value) {
case 'hsl(angle)':
this.color = this.hsl(this.angle);
break;
default:
this.color = s.value;
}
break;
case 'Statement:Let':
execLet(s.identifier, evalExpr(s.value));
break;
case 'Statement:Assign':
execAssign(s.variable, evalExpr(s.value));
break;
case 'ProcDecl':
frame.setProc(s.name, s.params, s.body);
break;
case 'Expression:Call':
{
console.log(s);
console.log(frame.getProc(s.func));
let proc = frame.getProc(s.func);
if (!proc)
return;
if (s.params.length < proc.params.length) {
console.log(`Too few params to ${proc.name}`);
return;
}
let pdecl = [];
for (let i = 0; i < proc.params.length; i++) {
pdecl.push({
node: 'Statement:Let',
identifier: proc.params[i],
value: evalExpr(s.params[i])
});
}
pdecl = pdecl.concat(proc.body);
execBody(pdecl);
}
break;
default:
console.log(["Cant execute:", s]);
}
};
execBody = (stats) => {
for (let s of stats) {
execStatement(s);
}
};
try {
let ast = parser_1.parse(script);
console.log(["ast", ast]);
execBody(ast.statements);
}
catch (e) {
console.log(e instanceof parser_1.SyntaxError);
console.log(e);
}
//for (let stat of )
// let lines = script.split("\n");
// let ctrlStack = [];
// for (let i = 0; i < lines.length; i++) {
// let line = lines[i];
// if (line[0] === '#') continue;
// let tokens = line.toUpperCase().split(' ').filter(t => t);
// let comm = tokens.length >= 1 ? tokens[0] : null;
// if (!comm) continue;
// let arg1 = tokens.length >= 2 ? tokens[1] : null;
// switch (comm) {
// case 'REPEAT':
// ctrlStack.push({
// n: arg1 || 0,
// ctr: 0,
// begin: i
// });
// // console.log("REPEAT " + arg1);
// break;
// case 'END':
// if (ctrlStack.length > 0) {
// //console.log(ctrlStack);
// let frame = ctrlStack[ctrlStack.length - 1];
// frame.ctr++;
// if (frame.ctr < frame.n) {
// //console.log(`GOTO ${frame.begin}, CTR=${frame.ctr}, N=${frame.n}`)
// i = frame.begin;
// }
// else ctrlStack.pop();
// }
// break;
// default:
// this.command(line);
// }
// }
}
toggleConsole() {
this._consoleVisible = !this._consoleVisible;
this._consoleElem.style.display = this._consoleVisible ? "inline-block" : "none";
}
set liveMode(value) { this._liveMode = value; }
drawTurtle() {
const ctx = this._overlayCtx;
const cache = this._drawTurtleCache;
ctx.clearRect(0, 0, this.width, this.height);
if (this._showTurtle) {
let drawTurtle = (x, y, rad, angle) => {
let xaxis = { x: Math.cos(rad), y: -Math.sin(rad) };
let yaxis = { x: xaxis.y, y: -xaxis.x };
let trans = (p) => {
return vecAdd(vecAdd(vecMul(xaxis, p.x), vecMul(yaxis, p.y)), { x: x, y: y });
};
let pts = [
{ x: 0, y: 0 },
{ x: -10 - 5, y: -8 },
{ x: -10, y: 0 },
{ x: -10 - 5, y: 8 },
//{ x:10, y:0 },
{ x: 0, y: 0 },
];
pts.forEach(p => { p.x += 10; });
ctx.beginPath();
ctx.strokeStyle = ['black', 'white', 'gray'][cache.color];
//ctx.strokeStyle = this._color == 'black' ? 'white' : 'black';
//ctx.ellipse(this.pos.x, this.pos.y, 10, 10, 0, 0, 360);
for (let i = 0; i < pts.length; i++) {
let p = trans(pts[i]);
if (i == 0)
ctx.moveTo(p.x, p.y);
else
ctx.lineTo(p.x, p.y);
}
//ctx.closePath();
// ctx.strokeStyle = 'black';
// ctx.lineWidth = 1.5;
// ctx.stroke();
// ctx.strokeStyle = 'gray';
// ctx.lineWidth = 1;
ctx.fillStyle = this._color == 'black' ? 'white' : this._color;
ctx.fill();
ctx.stroke();
//ctx.beginPath();
ctx.fillStyle = 'gray';
ctx.fillText(`X: ${Math.round(x)}, Y: ${Math.round(y)}, \u03b8: ${Math.round(angle)}\u00b0`, 2, 10);
ctx.fillText(`${this._penDown ? 'P▼' : 'P▲'}`, 2, 20);
};
drawTurtle(this.pos.x, this.pos.y, this.dirRad, this.angle);
//cache.color = (cache.color + 1) % 2;
}
}
get dirRad() {
return this._dirAngle * Math.PI / 180;
}
get dirVec() {
return { x: Math.cos(this.dirRad), y: -Math.sin(this.dirRad) };
}
/**
* Height of the canvas.
*/
get height() { return this._height; }
/**
* Width of the canvas.
*/
get width() { return this._width; }
screen(width, height) {
if (this._width == width && this._height == height)
return;
this._width = width;
this._height = height;
this._elem.setAttribute("width", String(width));
this._elem.setAttribute("height", String(height));
this._overlayElem.setAttribute("width", String(width));
this._overlayElem.setAttribute("height", String(height));
this.reset();
}
/**
* Get or set the position of the turtle. Coordinates are
* (0,0) at upper-left corner, to (width, height) at lower-right corner.
*
* Example:
*
* // Set the turtle's position to the center of the canvas
*
* turtle.pos = {x: turtle.width/2, y: turtle.height/2};
*/
get pos() { return Object.assign({}, this._pos); }
set pos(value) { this._pos = value; }
/**
* Helper function for setting position to important locations.
*
* turtle.pos = turtle.corners.upperLeft;
*/
get corners() {
let left = 0;
let cx = this._width / 2;
let right = this._width;
let top = 0;
let cy = this._height / 2;
let lower = this._height;
let p = (x, y) => { return { x: x, y: y }; };
return {
left: p(left, cy),
upper: p(cx, top),
right: p(right, cy),
lower: p(cx, lower),
upperLeft: p(0, 0),
upperRight: p(right, 0),
lowerLeft: p(0, lower),
lowerRight: p(right, lower),
center: p(cx, cy),
};
}
/**
* Lift the turtle's pen up. This will make it stop drawing.
*/
penUp() { this._penDown = false; }
/**
* Put the pen down to resume drawing.
*/
penDown() { this._penDown = true; }
hide() { this._showTurtle = false; }
show() { this._showTurtle = true; }
/**
* Set the color of the pen.
*
* Examples:
*
* turtle.color = 'red';
*
* turtle.color = 'rgb(255, 0, 0)';
*
* turtle.color = turtle.hsl(72); // 0-360 represent colors of the rainbow
*/
set color(value) {
this._color = value;
}
get color() { return this._color; }
hsl(hue) {
return `hsl(${hue % 360}, 100%, 50%)`;
}
/**
* Get or set the direction of the turtle, as degrees.
*
* 0 degrees is towards the right, and then the angle moves
* anti-clockwise i.e. 90 is towards the top etc.
*/
get angle() { return this._dirAngle; }
set angle(value) { this._dirAngle = value; }
/**
* Get or set the thickness of the pen.
*/
get thickness() { return this._penWidth; }
set thickness(value) { this._penWidth = value; }
/**
* Move forward by x pixels.
* @param x
*/
forward(x) {
let oldPos = this._pos;
this.pos = vecAdd(this.pos, vecMul(this.dirVec, x));
if (this._penDown) {
this._ctx.beginPath();
this._ctx.moveTo(oldPos.x, oldPos.y);
this._ctx.lineTo(this._pos.x, this._pos.y);
//let cp = vecAvg(oldPos, this._pos);
//this._ctx.quadraticCurveTo(cp.x, cp.y, this._pos.x, this._pos.y);
this._ctx.strokeStyle = this._color;
this._ctx.lineWidth = this._penWidth;
this._ctx.lineCap = "round";
this._ctx.stroke();
}
}
/**
* Turn left.
* @param deg Angle in degrees
*/
left(deg) {
let angle = this.angle;
angle += deg;
angle %= 360;
this.angle = angle;
}
/**
* Turn right.
* @param deg Angle in degrees
*/
right(deg) {
let angle = this.angle;
angle -= deg;
angle %= 360;
this.angle = angle;
}
/**
* Update the screen with whatever has been drawn so far.
* Call this only if you wish to see the progress so far,
* otherwise it isn't strictly necessary. This is good
* for inspecting the movement of the turtle, or for
* animation.
* @param delayms Delay
*/
update(delayms = 0) {
return new Promise(resolve => setTimeout(resolve, delayms));
}
/**
* Clear the screen. Useful for animation.
*/
clear() {
//this._ctx.curr
//this._ctx.clearRect(-this._width, -this._height, this._width * 2, this._height * 2);
this._ctx.clearRect(0, 0, this._width, this._height);
let prev = this._ctx.fillStyle;
this._ctx.fillStyle = 'white';
this._ctx.fillRect(0, 0, this._width, this._height);
this._ctx.fillStyle = prev;
}
/**
* Push the current position and angle onto an internal stack.
* This is useful for retaining the original position of the turtle
* and then returning to it after, for example, a subroutine drawing.
*
* Example:
*
* turtle.pushPos();
* // do some drawing
* turtle.popPos(); // back to original position
*/
pushPos() {
this._posStack.push({
pos: Object.assign({}, this._pos),
angle: this._dirAngle
});
}
/**
* See pushPos().
*/
popPos() {
if (this._posStack.length > 0) {
let frame = this._posStack.pop();
this.pos = frame.pos;
this.angle = frame.angle;
}
}
pushPen() {
this._penStack.push({
penDown: this._penDown,
penThickness: this.thickness,
color: this.color
});
}
popPen() {
if (this._penStack.length > 0) {
let frame = this._penStack.pop();
this._penDown = frame.penDown;
this.thickness = frame.penThickness;
this.color = frame.color;
}
}
home() {
this.pos = this.corners.center;
this.angle = 0;
}
reset() {
this._posStack = [];
this.clear();
this.home();
this.resetPen();
this.show();
}
resetPen() {
this.thickness = 1;
this.color = 'black';
this._penDown = true;
}
}
exports.Turtle = Turtle;
/***/ }),
/* 2 */
/***/ (function(module, exports, __webpack_require__) {
"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
Object.defineProperty(exports, "__esModule", { value: true });
const c = __webpack_require__(0);
const turtle_1 = __webpack_require__(1);
window.onload = c.wrapmain(main);
const input = c.input;
const print = c.print;
function fact(i) {
let result = 1;
for (let j = 1; j <= i; j++)
result *= j;
return result;
}
function main() {
return __awaiter(this, void 0, void 0, function* () {
let t = new turtle_1.Turtle();
t.toggleConsole();
t.liveMode = true;
// t.execute(`
// fd 100
// lt 90
// `);
//t.left(90);
//t.forward(100);
window['t'] = t;
//t.pos = t.corners.lower;