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index.html
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<html>
<head>
<script src="https://code.jquery.com/jquery-3.2.1.min.js"></script>
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=Galindo&family=Lilita+One&family=Passion+One:wght@400;700;900&display=swap" rel="stylesheet">
<style>
.passion-one-regular {
font-family: "Passion One", sans-serif;
font-weight: 400;
font-style: normal;
}
.passion-one-bold {
font-family: "Passion One", sans-serif;
font-weight: 700;
font-style: normal;
}
.passion-one-black {
font-family: "Passion One", sans-serif;
font-weight: 900;
font-style: normal;
}
body {
max-width: 1024px;
font-family: sans-serif;
}
.title-block {
text-align: center;
}
.title {
font-family: "Lilita One", sans-serif;
font-size: xx-large;
font-weight: 700;
}
.subtitle {
font-family: "Lilita One", sans-serif;
font-size: x-large;
font-weight: 400;
}
h1, h2, h3, th {
font-family: "Lilita One", sans-serif;
font-weight: 400;
}
#setup-text-block {
font-family: "Lilita One", sans-serif;
}
#message-list {
width: 100%;
}
.toc {
display: flex;
}
.toc-item {
text-align: center;
width: 100%;
}
div {
margin-top: 1em;
margin-bottom: 1em;
}
table {
width: 100%;
}
table, th, td {
border:1px solid black;
}
.list {
width: 10em;
}
.control-bar {
display: flex;
align-items: center;
}
.control {
width: 5em;
margin-right: .5em;
}
.list-block {
width: 0%
}
.code-block {
width: 100%;
text-wrap: nowrap;
}
.log {
width: 30em;
}
[changed] {
background-color: lightgray;
}
[hidden] {
display: none;
}
[success] {
background-color: lightgreen;
}
</style>
</head>
<body>
<div class="title-block">
<span class="title">HUMAN RESOURCE MACHINE</span>
<br />
<span class="subtitle">A Simulator</span>
</div>
<div class="toc">
<a class="toc-item" href="#instructions">Instructions</a>
<a class="toc-item" href="#opcode-reference">Programming Reference</a>
<a class="toc-item" href="#setup-instructions">Custom Levels</a>
</div>
<div id="level-selection">
<label for="levels">Level: </label>
<select id="levels" name="levels">
<option><Custom></option>
</select>
<input type="file" id="setup-file" />
</div>
<div id="setup-text-block" hidden>
</div>
<div id="machine">
<table>
<tr>
<th><label for="register">In hand: </label><input name="register" id="register" readonly></input></th>
<th><label for="count">Execution Steps: </label><input name="count" id="count" readonly></input></th>
<th><label for="length">Program Size: </label><input name="length" id="length" readonly></input></th>
</tr>
</table>
<table>
<tr>
<th id="input-header">Inbox</th>
<th>Floor Tiles</th>
<th id="output-header">Outbox</th>
<th>Program</th>
</tr>
<tr>
<td class="list-block"><select id="input" class="list" size="25"></select></td>
<td class="list-block"><select id="memory" class="list" size="25"></select></td>
<td class="list-block"><select id="output" class="list" size="25"></select></td>
<td><textarea id="program" class="code-block" rows="25" spellcheck="false"></textarea></td>
</tr>
</table>
<div class="control-bar">
<button id="reset" class="control" disabled>Stop</button>
<button id="step-back" class="control" disabled>< Step</button>
<button id="run" class="control" disabled>Run >></button>
<button id="break" class="control" hidden>Pause</button>
<button id="step" class="control" disabled>Step ></button>
<label for="speed">Speed: </label>
<input id="speed" name="speed" type="range" min="0" max="10" value="0"/>
</div>
</div>
<div id="messages">
Messages:<br />
<select id="message-list" class="log" size="10"></select>
<div />
<div id="instructions">
<h2>Instructions</h2>
<ol>
<li>Load a setup file by pressing the "Choose File" button</li>
<li>Type/Paste your code into the "Program" text area</li>
<li>Execute your program:</li>
<ul>
<li>To launch the program, press <button class="control">Run >></button></li>
<ul>
<li>To break execution of the program, press <button class="control">Pause</button></li>
</ul>
<li>To execute one command at a time, press <button class="control">Step ></button></li>
<li>To roll back a command (once execution has begun), press <button class="control">< Step</button></li>
<li>To end execution and edit the program again, press <button class="control">Stop</button></li>
</ul>
<li>Execution of the program stops automatically if:</li>
<ul>
<li>A runtime error occurs; a description of the error will appear in the "Messages" list</li>
<li>There is nothing left to pick up from the Inbox</li>
<li>The end of the program is reached</li>
</ul>
</ol>
</div>
<div id="opcode-reference">
<h2>Programming Reference</h2>
<table>
<tr>
<th colspan="2"><h3><br />Input / Output</h3></th>
</tr>
<tr>
<td><code>-- <i>comment</i></code></td>
<td>Anything following "--" is not considered code, anywhere on a line</td>
</tr>
<tr>
<td><code>INBOX</code></td>
<td>Pick up next value from the Inbox</td>
</tr>
<tr>
<td><code>OUTBOX</code></td>
<td>Put currently held value in the Outbox</td>
</tr>
<tr>
<td><code>COPYFROM <i>address</i></code></td>
<td>Pick up contents of tile at <i>address</i></td>
</tr>
<tr>
<td><code>COPYTO <i>address</i></code></td>
<td>Write currently held value on tile at <i>address</i></td>
</tr>
<tr>
<th colspan="2"><h3><br />Arithmetic</h3></th>
</tr>
<tr>
<td><code>ADD <i>address</i></code></td>
<td>
Add contents of tile at <i>address</i> to currently held value<br />
<b>NOTE:</b> Only numbers can be added
</td>
</tr>
<tr>
<td><code>SUB <i>address</i></code></td>
<td>
Subtract contents of tile at <i>address</i> from currently held value<br />
<b>NOTE:</b> Numbers can only be subtracted from numbers, or letters from letters
</td>
</tr>
<tr>
<td><code>BUMPUP <i>address</i></code></td>
<td>
Subtract one to the tile at <i>address</i> and pick up the result<br />
<b>NOTE:</b> Only numbers can be bumped
</td>
</tr>
<tr>
<td><code>BUMPDN <i>address</i></code></td>
<td>
Subtract one from the tile at <i>address</i> and pick up the result<br />
<b>NOTE:</b> Only numbers can be bumped
</td>
</tr>
<tr>
<th colspan="2"><h3><br />Indirect Addressing</h3></th>
</tr>
<tr>
<td><code><i>command</i> [<i>address</i>]</code></td>
<td>Access a tile whose address is written on tile at <i>address</i></td>
</tr>
<tr>
<th colspan="2"><h3><br />Branching</h3></th>
</tr>
<tr>
<td><code><i>label</i>:</code></td>
<td>Define a jump location named <i>label</i></td>
</tr>
<tr>
<td><code>JUMP <i>label</i></code></td>
<td>Continue program execution from <i>label</i></td>
</tr>
<tr>
<td><code>JUMPZ <i>label</i></code></td>
<td>
Jump to <i>label</i> if currently held value is zero<br />
<b>NOTE:</b> Does nothing unless the value in hand is a number
</td>
</tr>
<tr>
<td><code>JUMPN <i>label</i></code></td>
<td>
Jump to <i>label</i> if currently held value is negative<br />
<b>NOTE:</b> Does nothing unless the value in hand is a number
</td>
</tr>
<tr>
<th colspan="2"><h3><br />Tile naming</h3></th>
</tr>
<tr>
<td><code>DEFINE LABEL <i>address</i> <i>label</i></code></td>
<td>Label the tile at <i>address</i></td>
</tr>
</table>
</div>
<div id="setup-instructions">
<h2>Custom Levels</h2>
Follow the format found in the included file: <code>res/level-data.json</code>.
The contents of floor tiles, either as:
<ul>
<li>An array; values beyond the specified size will be ignored</li>
<li>An object with tile addresses as keys, e.g.: <code>{ "24": 1, ... }</code></li>
</ul>
Missing values will be left empty.
The Floor Tiles, Inbox and Outbox may only contain the following:<br/>
<ul>
<li>
Empty values, e.g.: <code>null, ""</code>
</li>
<li>
Integer numbers, e.g.: <code>10, "10"</code>
</li>
<li>
Characters (A to Z), e.g.: <code>"A", "B",</code> etc.
</li>
</ul>
Your custom level needs at least <b>one</b> example, so it can be played.
</div>
<script>
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window.hrmMachine = null;
window.hrmCustomLevel = null;
window.hrmLevels = [];
window.programChanged = false;
onLoad = function(data) {
window.hrmLevels = data;
// populate dropdown
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////////////////////////////////////////
// https://stackoverflow.com/questions/56329625
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////////////////////////////////////////
$("#program").on("input", function (e) {
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////////////////////////////////////////
// https://stackoverflow.com/questions/56329625
//console.log(`program : input : top = ${uiProgram.scrollTop}`);
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////////////////////////////////////////
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////////////////////////////////////////
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function clearMessages() {
let uiMessages = $("#message-list");
uiMessages[0].innerHTML = null;
}
function logMessage(text, value) {
let uiMessages = $("#message-list");
let isValid = Number.isInteger(value);
let html = `<option value="${value}">${isValid ? `Line ${value + 1}: ` : ''}${text}</option>`;
uiMessages.append(html);
}
function updateUi(machine) {
if (machine == null) {
$("#reset")[0].setAttribute("disabled", "");
$("#step-back")[0].setAttribute("disabled", "");
$("#run")[0].setAttribute("disabled", "");
$("#step")[0].setAttribute("disabled", "");
$("#program")[0].removeAttribute("readonly");
} else {
$("#step")[0].removeAttribute("disabled");
if (machine.run === false) {
$("#reset")[0].setAttribute("disabled", "");
$("#step-back")[0].setAttribute("disabled", "");
$("#run")[0].removeAttribute("disabled");
$("#run")[0].removeAttribute("hidden");
$("#break")[0].setAttribute("hidden", "");
$("#program")[0].removeAttribute("readonly");
} else {
$("#reset")[0].removeAttribute("disabled");
if (machine.states.length > 1) {
$("#step-back")[0].removeAttribute("disabled");
} else {
$("#step-back")[0].setAttribute("disabled", "");
}
if (machine.run == "auto") {
$("#run")[0].setAttribute("hidden", "");
$("#break")[0].removeAttribute("hidden");
} else {
$("#run")[0].removeAttribute("hidden");
$("#break")[0].setAttribute("hidden", "");
}
$("#program")[0].setAttribute("readonly", "");
}
}
}
function hrmInit(machine, exampleIndex) {
clearMessages();
hrmInitLevel(machine, exampleIndex);
if (machine.errors.length > 0) {
hrmLogMachineErrors(machine);
return false;
}
hrmSetMachine(machine);
return true;
}
function hrmSetMachine(machine) {
this.hrmMachine = machine;
hrmInitUI(machine);
}
function hrmInitUI(machine) {
let setup = machine?.level ?? {};
// Problem text
let uiSetupText = $("#setup-text-block");
uiSetupText[0].innerHTML = null;
if (setup.name != undefined) {
uiSetupText.append(`<h2>${setup.name}</h2>`);
}
if (setup.instructions != undefined) {
uiSetupText.append(`<p>${setup.instructions.replace('\n', '</p><p>')}</p>`);
}
uiSetupText[0].removeAttribute("hidden");
}
function hrmCreateMachine(setup) {
// initialize machine
let machine = {
run: false,
states: [],
program: [],
programLines: [],
programLength: 0,
constants: [],
output: null,
level: setup,
currentExample: null,
errors: []
};
return machine;
}
function hrmInitLevel(machine, exampleIndex) {
let level = machine.level ?? {};
let examples = level.examples ?? [];
let example = {};
if (examples.length > 0) {
machine.currentExample = exampleIndex ?? Math.trunc(Math.random() * examples.length);
example = examples[machine.currentExample];
}
let inbox = [];
if (example.inbox != undefined) {
for (entry of example.inbox.toReversed().entries()) {
try {
inbox.push(parseItem(entry[1]));
} catch (e) {
machine.errors.push(`Invalid inbox value #${entry[0]} : ${entry[1]}`);
}
}
}
let floor = [];
let floorRows = level.floor?.rows ?? 0;
let floorCols = level.floor?.columns ?? 0;
machine.memorySize = floorRows * floorCols;
if (level.floor?.tiles == undefined) {
for (i = 0; i < machine.memorySize; ++i) {
floor.push(null);
}
} else {
for (i = 0; i < machine.memorySize; ++i) {
try {
floor.push(parseItem(level.floor.tiles[i]));
} catch (e) {
machine.errors.push(`Invalid tile value #${entry[0]} : ${entry[1]}`);
}
}
}
if (example.outbox != undefined) {
machine.output = [];
for (entry of example.outbox.entries()) {
try {
machine.output.push(parseItem(entry[1]));
} catch (e) {
machine.errors.push(`Invalid outbox value #${entry[0]} : ${entry[1]}`);
}
}
}
let state = {
register: null,
input: inbox,
memory: floor,
output: [],
next: 0,
count: 0,
error: null,
halted: false,
register_changed: false,
output_changed: false,
memory_changed: false
};
machine.states = [state];
return machine;
}
function parseItem(item) {
if (item == undefined) {
return null;
}
if (item == null || Number.isInteger(item)) {
return item;
}
item = item.trim();
if (item === "") {
return null;
}
// integer as string
let value = Number.parseInt(item);
if (value.toString() == item.trim()) {
return value;
}
// must be a single character
if (item.length == 1) {
return item.toUpperCase();
}
throw new Error();
}
function hrmRender(machine) {
let state = hrmGetLastState(machine);
// register
let uiRegister = $("#register");
uiRegister[0].value = state.register ?? "";
if (state.register_changed) {
uiRegister[0].setAttribute("changed", "");
} else {
uiRegister[0].removeAttribute("changed");
}
// instruction count
$("#count")[0].value = state.count;
// input
let uiInput = $("#input");
uiInput[0].innerHTML = null;
for (item of state.input.toReversed()) {
let html = `<option>${(item ?? "")}</option>`;
uiInput.append(html);
}
let uiHeader = $("#input-header");
if (state.input_changed) {
uiHeader[0].setAttribute("changed", "");
} else {
uiHeader[0].removeAttribute("changed");
}
// memory
let uiMemory = $("#memory");
uiMemory[0].innerHTML = null;
for (entry of state.memory.entries()) {
let item = entry[1];
let alias = machine.constants[entry[0]] ??
(entry[0] < 10 ? `0${entry[0]}` : entry[0].toString());
let html = `<option>${alias} : ${item ?? ""}</option>`;
uiMemory.append(html);
}
if (state.memory_changed !== false) {
let uiMemorySlot = uiMemory[0].children.item(state.memory_changed);
uiMemorySlot.setAttribute("changed", "");
}
// output
let uiOutput = $("#output");
uiOutput[0].innerHTML = null;
for (item of state.output.toReversed()) {
let html = `<option>${item ?? ""}</option>`;
uiOutput.append(html);
}
let uiOutputHeader = $("#output-header")[0];
if (state.output_changed) {
uiOutputHeader.setAttribute("changed", "");
} else {
uiOutputHeader.removeAttribute("changed");
}
// next instruction
selectProgramLine(state.next);
let challenge = machine.level.challenge ?? {};
// speed goal
let uiCount = $("#count")[0];
if (state.halted && challenge.speed != undefined) {
uiCount.value = `${state.count} / ${challenge.speed}`;
if (state.count <= challenge.speed) {
uiCount.setAttribute("success", "");
}
} else {
uiCount.value = `${state.count}`;
uiCount.removeAttribute("success");
}
// size goal
let uiLength = $("#length")[0];
if (state.halted && challenge.size != undefined) {
uiLength.value = `${machine.programLength} / ${challenge.size}`;
if (machine.programLength <= challenge.size) {
uiLength.setAttribute("success", "");
}
} else {
uiLength.value = `${machine.programLength}`;
uiLength.removeAttribute("success");
}
}
function selectProgramLine(line) {
let uiProgram = $("#program");
// line positions
line = Number.parseInt(line);
let lines = this.hrmMachine.programLines;
let start = lines[line];
let end = lines[line + 1];
// scroll line into view
uiProgram[0].setSelectionRange(start, start);
uiProgram[0].blur();
uiProgram[0].focus();
// select line
uiProgram[0].setSelectionRange(start, end);
}
function hrmLogMachineErrors(machine) {
for (error of machine.errors) {
if (typeof(error) == 'string') {
logMessage(error);
} else {
logMessage(error[0], error[1]);
}
}
machine.errors = [];
}
function hrmValidateOutput(machine, state) {
if (machine.output == null) {
return true;
}
for (entry of state.output.entries()) {
let expected = machine.output[entry[0]];
let actual = entry[1];
if (actual != expected) {
state.error = `Bad outbox! Management expected ${expected}, but you outboxed ${actual}.`;
return false;
}
}
return true;
}
function hrmValidateFinalOutput(machine) {
if (machine.output == null) {
// nothing to check
return true;
}
let state = hrmGetLastState(machine);
if (!state.halted) {
// it's not time yet
return true;
}
let expected = machine.output.length;
let actual = state.output.length;
if (actual != expected) {
logMessage(`Not enough stuff in the OUTBOX! Management expected a total of ${expected} items, not ${actual}!`);
return false;
}
// validate against other examples
let failedExample = null;
let examples = machine.level.examples ?? [];
for (entry of examples.entries()) {
if (entry[0] == machine.currentExample) {
continue;
}
let example = entry[1];
let testMachine = clone(machine);
hrmInitLevel(testMachine, entry[0]);
if (testMachine.errors.length == 0) {
while (hrmStep(testMachine));
let lastState = hrmGetLastState(testMachine);
if (lastState.halted) {
continue;
}
}
// there were errors -- switch examples
hrmResetState(testMachine);
hrmSetMachine(testMachine);
logMessage(`Aha! Your solution works with those specific inputs... but it FAILS on other possible inputs!`);
logMessage(`Yes, here, I'll give you some inputs that cause your solution to fail, so you can see for yourself.`);
return false;
}
// we're done
logMessage(`Congratulations!`);
let challenge = machine.level.challenge ?? {};
if (challenge.size != undefined) {
logMessage(`Size Challenge: use ${challenge.size} or fewer commands. Your current solution uses ${machine.programLength} commands`);
}
if (challenge.speed != undefined) {
logMessage(`Speed Challenge: complete in ${challenge.speed} or fewer steps. Your current solution completes in ${state.count} steps`);
}
return true;
}
function hrmCompile(machine, programText) {
clearMessages();
let hasErrors = false;
machine.program = [];
machine.programLines = [];
machine.constants = [];
let constants = new Object();
let labels = new Object();
let lineStart = 0;
for (line of programText.split('\n')) {
machine.programLines.push(lineStart);
lineStart += line.length + 1;
line = line
.replace(/--.*$/g, '') // remove comment
.trim(); // remove all whitespace
if (line == '') {
machine.program.push(["NOP"]);
continue;
}
let result = null;