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Add key copier program implementation #3

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438e2c0
Add key copier program implementation
vargatamasop Dec 8, 2025
d08e4aa
Revise README for M5 stick KEY Copier tool
vargatamasop Dec 8, 2025
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10 changes: 10 additions & 0 deletions examples/keycopier/Readme.md
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<a name="readmemd"></a>

# M5 stick KEY Copier tool
I wrote some code in Bruce JavaScript. The idea came from the code running on Flipper Zero!

### The application allows you to copy and create keys using the screen!
You can save and restore the saved key!

# important !!!
# The application is optimized for the M5 stick display!
296 changes: 296 additions & 0 deletions examples/keycopier/keycopier.js
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// KEY COPIER PROGRAM
// By VARGA TAMAS


var display = require('display');
var keyboard = require('keyboard');
var storage = require('storage');

function main() {

// --- Képernyő ---
var dw = display.width();
var dh = display.height();
var sprite = display.createSprite(dw, dh);

// --- Színek ---
var bg_color = display.color(255, 130, 0);
var fg_color = display.color(0, 0, 0);

// --- Adatok ---
var cursor = 0;
var code = [1, 1, 1, 1, 1, 1];
var maxDepth = 7;

// --- MENTÉS HELYE ---
var FILE_PATH = "/KeyCopier/key_copier.code";

var showMenu = false;
var menuCursor = 0;
var menuItems = ["Save", "Load", "Exit"];

var statusMsg = "";
var msgTimer = 0;

keyboard.setLongPress(true);

// --- GRAFIKA ---
var TANGENT = 0.84;
var PIN_HALF_WIDTH = 3;
var DEPTH_STEP = 4;
var numY = 25;
var TOP_Y = 55;
var keySpineY = 95;

while (true) {

if (msgTimer > 0) msgTimer--;
if (msgTimer === 0) statusMsg = "";

// --- BEMENET ---

if (showMenu) {
// *** MENÜ ***
if (keyboard.getPrevPress(true)) showMenu = false;

if (keyboard.getNextPress(true)) {
menuCursor++;
if (menuCursor >= menuItems.length) menuCursor = 0;
}

if (keyboard.getSelPress(true)) {
if (menuCursor === 0) {
// **********************************
// *** SAVE (FELÜLÍRÁS "write" MÓDDAL) ***
// **********************************
try {
// CSV formátum
var csvData = code.join(",");

// JAVÍTÁS: Itt adjuk át a "write" paramétert!
// Ez biztosítja, hogy felülírja a fájlt, ne hozzáfűzzön.
var success = storage.write(FILE_PATH, csvData, "write");

if (success) statusMsg = "Saved!";
else statusMsg = "Write: False";

} catch (e) {
statusMsg = "Sys Err";
}
msgTimer = 30;
showMenu = false;
}
else if (menuCursor === 1) {
// **********************************
// *** LOAD (BETÖLTÉS) ***
// **********************************
var raw = undefined;
var loaded = false;

try {
// Közvetlen olvasás
raw = storage.read(FILE_PATH);
} catch (e) {
statusMsg = "IO Err";
}

if (raw !== undefined && raw !== null) {
try {
var str = String(raw).trim();
// Ha esetleg maradtak benne sortörések, csak az első sort vesszük
// Ez extra védelem, ha régebben appendelt fájlt olvasunk be
var lines = str.split("\n");
if (lines.length > 0) str = lines[lines.length-1]; // Az utolsó sort vesszük (a legfrissebbet)

var parts = str.split(",");

var tempCode = [];
for (var k = 0; k < parts.length; k++) {
var val = parseInt(parts[k].trim());
if (!isNaN(val)) tempCode.push(val);
}

// Mivel lehet, hogy a fájlban több sor van (a régi hibás mentések miatt),
// csak az utolsó 6 számot vesszük figyelembe, ha több lenne.
if (tempCode.length >= 6) {
// Az utolsó 6 elemet töltjük be
var startIdx = tempCode.length - 6;
code = tempCode.slice(startIdx, startIdx + 6);
statusMsg = "Loaded!";
loaded = true;
} else {
statusMsg = "Bad Len";
}
} catch (e) {
statusMsg = "Parse Err";
}

if (!loaded && statusMsg === "") statusMsg = "Bad Data";

} else {
if (statusMsg === "") statusMsg = "No File";
}

msgTimer = 30;
showMenu = false;
}
else if (menuCursor === 2) {
break; // Exit
}
}

} else {
// *** SZERKESZTŐ ***
if (keyboard.getPrevPress(true)) {
showMenu = true;
menuCursor = 0;
}
if (keyboard.getSelPress(true)) {
cursor++;
if (cursor > 5) cursor = 0;
}
if (keyboard.getNextPress(true)) {
code[cursor]++;
if (code[cursor] > maxDepth) code[cursor] = 1;
}
}

// --- RAJZOLÁS ---
sprite.fill(bg_color);
sprite.setTextColor(fg_color, bg_color);

sprite.setTextSize(2);
sprite.drawText("Key Copier", 5, 2);

var availableWidth = dw - 20;
var pinSpacing = Math.floor(availableWidth / 6);
var startX = 10;

sprite.setTextSize(2);
for(var i=0; i<6; i++) {
var pinCenterX = startX + (i * pinSpacing) + (pinSpacing/2);
var textStr = code[i].toString();

if (i === cursor && !showMenu) {
textStr = "[" + textStr + "]";
sprite.drawText(textStr, pinCenterX - 14, numY);
} else {
sprite.drawText(textStr, pinCenterX - 5, numY);
}
}

var keyEnd = dw - 5;
sprite.drawLine(0, keySpineY, keyEnd, keySpineY, fg_color);
sprite.drawLine(0, keySpineY, 0, TOP_Y, fg_color);
sprite.drawLine(keyEnd, keySpineY, keyEnd, TOP_Y + 10, fg_color);

for(var j=0; j<6; j++) {
var cx = startX + (j * pinSpacing) + (pinSpacing/2);
var currentDepthPx = (code[j] - 1) * DEPTH_STEP;
var bottomY = TOP_Y + currentDepthPx;

sprite.drawLine(cx - PIN_HALF_WIDTH, bottomY, cx + PIN_HALF_WIDTH, bottomY, fg_color);

var prevDepthPx = 0;
if (j > 0) prevDepthPx = (code[j-1] - 1) * DEPTH_STEP;
var myLeftWidth = PIN_HALF_WIDTH + (currentDepthPx * TANGENT);
var prevRightWidth = PIN_HALF_WIDTH + (prevDepthPx * TANGENT);
var distToPrev = (j === 0) ? 999 : pinSpacing;

if (j === 0) {
var slopeEndX = cx - myLeftWidth;
if (slopeEndX < 0) slopeEndX = 0;
sprite.drawLine(cx - PIN_HALF_WIDTH, bottomY, slopeEndX, TOP_Y, fg_color);
if (slopeEndX > 0) sprite.drawLine(0, TOP_Y, slopeEndX, TOP_Y, fg_color);
} else {
if ((myLeftWidth + prevRightWidth) > distToPrev) {
var ratio = currentDepthPx / (currentDepthPx + prevDepthPx);
if (currentDepthPx + prevDepthPx === 0) ratio = 0.5;
var peakDistX = ratio * distToPrev;
var peakX = cx - peakDistX;
var rise = (peakDistX - PIN_HALF_WIDTH) / TANGENT;
var peakY = bottomY - rise;
sprite.drawLine(cx - PIN_HALF_WIDTH, bottomY, peakX, peakY, fg_color);
} else {
var slopeTopX = cx - myLeftWidth;
sprite.drawLine(cx - PIN_HALF_WIDTH, bottomY, slopeTopX, TOP_Y, fg_color);
var prevCx = cx - pinSpacing;
var prevSlopeTopX = prevCx + prevRightWidth;
sprite.drawLine(prevSlopeTopX, TOP_Y, slopeTopX, TOP_Y, fg_color);
}
}

var nextDepthPx = 0;
if (j < 5) nextDepthPx = (code[j+1] - 1) * DEPTH_STEP;
var myRightWidth = PIN_HALF_WIDTH + (currentDepthPx * TANGENT);
var nextLeftWidth = PIN_HALF_WIDTH + (nextDepthPx * TANGENT);
var distToNext = (j === 5) ? 999 : pinSpacing;

if (j === 5) {
var slopeEndX = cx + myRightWidth;
sprite.drawLine(cx + PIN_HALF_WIDTH, bottomY, slopeEndX, TOP_Y, fg_color);
sprite.drawLine(slopeEndX, TOP_Y, keyEnd, TOP_Y, fg_color);
} else {
if ((myRightWidth + nextLeftWidth) > distToNext) {
var ratio = currentDepthPx / (currentDepthPx + nextDepthPx);
if (currentDepthPx + nextDepthPx === 0) ratio = 0.5;
var peakDistX = ratio * distToNext;
var myPeakDistX = distToNext - peakDistX;
var peakX = cx + myPeakDistX;
var rise = (myPeakDistX - PIN_HALF_WIDTH) / TANGENT;
var peakY = bottomY - rise;
sprite.drawLine(cx + PIN_HALF_WIDTH, bottomY, peakX, peakY, fg_color);
} else {
var slopeTopX = cx + myRightWidth;
sprite.drawLine(cx + PIN_HALF_WIDTH, bottomY, slopeTopX, TOP_Y, fg_color);
}
}
}

// --- Menü ---
if (showMenu) {
var menuW = 80;
var menuH = 55;
var menuX = (dw - menuW) / 2;
var menuY = (dh - menuH) / 2;

sprite.drawFillRect(menuX, menuY, menuW, menuH, fg_color);

sprite.drawLine(menuX, menuY, menuX + menuW, menuY, bg_color);
sprite.drawLine(menuX, menuY + menuH, menuX + menuW, menuY + menuH, bg_color);
sprite.drawLine(menuX, menuY, menuX, menuY + menuH, bg_color);
sprite.drawLine(menuX + menuW, menuY, menuX + menuW, menuY + menuH, bg_color);

sprite.setTextSize(1);
sprite.setTextColor(bg_color, fg_color);

for (var m = 0; m < menuItems.length; m++) {
var itemY = menuY + 12 + (m * 12);
var itemText = menuItems[m];
if (m === menuCursor) itemText = "> " + itemText + " <";
sprite.drawText(itemText, menuX + 15, itemY);
}
}

// --- Üzenet ---
if (statusMsg !== "") {
var msgH = 20;
sprite.drawFillRect(0, dh - msgH, dw, msgH, fg_color);
sprite.drawLine(0, dh - msgH, dw, dh - msgH, bg_color);
sprite.setTextColor(bg_color, fg_color);
sprite.setTextSize(1);
sprite.drawText(statusMsg, (dw/2) - (statusMsg.length*3), dh - 15);
}
else if (!showMenu) {
sprite.setTextSize(1);
sprite.drawText("Back: Menu | Next: Cut", 5, dh - 12);
}

sprite.pushSprite();
delay(50);
}

keyboard.setLongPress(false);
}

main();