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utils.js
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utils.js
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// Copyright (C) 2024 xxpasixx
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
module.exports = {
getRelativeValue: getRelativeValue,
mapValue: mapValue,
stringToAsciiHex: stringToAsciiHex,
numberIntoHex: numberIntoHex,
};
function getRelativeValue(value, posFrom, posTo, negFrom, negTo) {
if (value >= posFrom && value <= posTo) {
return value - posFrom + 1;
}
if (value >= negFrom && value <= negTo) {
return (negFrom - value - 1);
}
}
function mapValue(value, fromLow, fromHigh, toLow, toHigh) {
const percent = (value - fromLow) / (fromHigh - fromLow);
const result = percent * (toHigh - toLow) + toLow
return Math.min(Math.max(result, toLow), toHigh);
}
function stringToAsciiHex(str) {
let hexString = '';
for (let i = 0; i < str.length; i++) {
const asciiValue = str.charCodeAt(i);
const hexValue = asciiValue.toString(16).padStart(2, '0');
hexString += hexValue + " ";
}
return hexString;
}
function numberIntoHex(nr) {
return nr.toString(16).padStart(2, '0');
}