HWM - set army form data

// 1. copy the form data from POST request and save as a local "formData" variable
// 2. run the code below
// 3. copy console.log'ged value and paste here to draw it: https://ctlessons.org/apps/coordinateDrawer

var events = Object.values(formData)
    .filter(e => e.type === 'mousemove');
var minX = Math.min(...events.map(e => e.cX));
var minY = Math.min(...events.map(e => e.cY));
var maxX = Math.max(...events.map(e => e.cX));
var maxY = Math.max(...events.map(e => e.cY));

function mapCoordinate(value, inMin, inMax, outMin, outMax) {
    return Math.round((value - inMin) * (outMax - outMin) / (inMax - inMin)) + outMin;
}

console.log(
    events
        .map(e => {
            const x = mapCoordinate(e.cX, minX, maxX, -20, 20); // -20, 20 - canvas limits; feel free to change
            const y = mapCoordinate(e.cY, minY, maxY, -20, 20);
            return `${x},${y}`
        })
        .join('\n')
)