var isEven = n => n % 2 === 0;
var toFixed = n => Number.parseFloat(n).toFixed(2);
var radToDeg = radians => radians * 180 / Math.PI;
let getPointCoords = (x, y) => {
let point = document.querySelector(`[data-x="${x}"][data-y="${y}"]`);
return [point.x.baseVal.value, point.y.baseVal.value]
};
var svgns = "http://www.w3.org/2000/svg",
svg = document.querySelector('svg'),
rect = document.querySelector('rect#map');
var columnCount = 33,
rowCount = 25,
pointDistanceInInches = 1.005;
var columns = [...Array(columnCount).keys()],
rows = [...Array(rowCount).keys()],
points = rows.map(y => columns.map(x => [x, y]));
var xOffset = 0.25,
yOffset = 0.45;
calcY = Math.sqrt(3) * pointDistanceInInches / 2,
alternatingOffset = pointDistanceInInches / 2;
rect.addEventListener('mousemove', e => {
var rect = e.target.getBoundingClientRect();
var x = e.clientX - rect.left;
var y = e.clientY - rect.top;
let [maxX, maxY] = [e.target.width, e.target.height].map(v => v.baseVal.valueInSpecifiedUnits);
// console.log('x', `${toFixed(x / rect.width * maxX)}"`, 'y', `${toFixed(y / rect.height * maxY)}"`);
let aim = document.querySelector('.firing-arc.active');
if (aim) {
let xIntercept = y => (y - y1) * (x2 - x1) / (y2 - y1) + x1;
let yIntercept = x => (x - x1) * (y2 - y1) / (x2 - x1) + y1;
let newX, newY;
let [x1, y1] = [aim.x1, aim.y1].map(v => v.baseVal.valueInSpecifiedUnits);
let [x2, y2] = [x / rect.width * maxX, y / rect.height * maxY];
// TODO: handle horizontal and vertical lines
if (x2 - x1 > 0 && y2 - y1 > 0) {
let yWhenXisMax = yIntercept(maxX);
let xWhenYisMax = xIntercept(maxY);
if (xWhenYisMax <= maxX) {
newX = xWhenYisMax;
newY = maxY;
} else {
newX = maxX;
newY = yWhenXisMax;
}
} else if (x2 - x1 > 0 && y2 - y1 < 0) {
let yWhenXisMax = yIntercept(maxX);
let xWhenYisZero = xIntercept(0);
if (xWhenYisZero <= maxX) {
newX = xWhenYisZero;
newY = 0;
} else {
newX = maxX;
newY = yWhenXisMax;
}
} else if (x2 - x1 < 0 && y2 - y1 < 0) {
let yWhenXisZero = yIntercept(0);
let xWhenYisZero = xIntercept(0);
if (yWhenXisZero >= 0) {
newX = 0;
newY = yWhenXisZero;
} else {
newX = xWhenYisZero;
newY = 0;
}
} else {
let yWhenXisZero = yIntercept(0);
let xWhenYisMax = xIntercept(maxY);
if (yWhenXisZero <= maxY) {
newX = 0;
newY = yWhenXisZero;
} else {
newX = xWhenYisMax;
newY = maxY;
}
}
aim.setAttributeNS(null, 'x2', `${newX}in`);
aim.setAttributeNS(null, 'y2', `${newY}in`);
let width = aim.x2.baseVal.value - aim.x1.baseVal.value;
let height = -(aim.y2.baseVal.value - aim.y1.baseVal.value);
let angle = Math.abs(radToDeg(Math.atan(height / width)));
if (width < 0 && height > 0) {
angle = 180 - angle;
} else if (width < 0 && height < 0) {
angle = 180 + angle;
} else if (width > 0 && height < 0) {
angle = 360 - angle;
}
console.log(`${toFixed(angle)}\u00B0`);
}
});
document.querySelectorAll('.soldier-record').forEach(el =>
el.addEventListener('click', e => {
if (e.target.classList.contains('selected')) {
e.target.classList.remove('selected');
} else {
document.querySelectorAll('.soldier-record.selected').forEach(el =>
el.classList.remove('selected')
);
e.target.classList.add('selected');
}
})
);
document.querySelector('#set-firing-arc').addEventListener('click', e => {
let selectedSoldier = document.querySelector('.soldier-record.selected');
if (selectedSoldier) {
let {troopNumber, troopAllegiance} = selectedSoldier.dataset;
let firingArc = document.querySelector(
`.firing-arc[data-troop-number="${troopNumber}"][data-troop-allegiance="${troopAllegiance}"]`
);
if (firingArc) { firingArc.remove() }
let counter = document.querySelector(
`circle.counter[data-troop-number="${troopNumber}"][data-troop-allegiance="${troopAllegiance}"]`
);
let aim = document.createElementNS(svgns, 'line');
aim.classList.add('firing-arc', 'active');
aim.dataset.troopNumber = troopNumber;
aim.dataset.troopAllegiance = troopAllegiance;
aim.setAttributeNS(null, 'x1', counter.cx.baseVal.valueAsString);
aim.setAttributeNS(null, 'y1', counter.cy.baseVal.valueAsString);
aim.setAttributeNS(null, 'x2', counter.cx.baseVal.valueAsString);
aim.setAttributeNS(null, 'y2', counter.cy.baseVal.valueAsString);
// aim.style.transformOrigin = `${counter.cx.baseVal.valueAsString} ${counter.cy.baseVal.valueAsString}`;
svg.appendChild(aim);
aim.addEventListener('click', e => {
e.target.classList.remove('active');
document.querySelector('circle#point').style.display = '';
});
document.querySelector('circle#point').style.display = 'none';
}
});
points.forEach((row, index) => row.forEach(([x, y]) => {
var cx = x * pointDistanceInInches + xOffset + (isEven(index) ? alternatingOffset : 0),
cy = y * pointDistanceInInches * calcY + yOffset,
point = document.createElementNS(svgns, 'use');
point.setAttributeNS(null, 'href', `#point`);
point.setAttributeNS(null, 'x', `${cx}in`);
point.setAttributeNS(null, 'y', `${cy}in`);
point.dataset.x = x;
point.dataset.y = y;
point.addEventListener('click', e => {
let selectedSoldier = document.querySelector('.soldier-record.selected');
if (selectedSoldier) {
let counter = document.createElementNS(svgns, 'circle');
let text = document.createElementNS(svgns, 'text');
counter.setAttributeNS(null, 'cx', `${cx}in`);
counter.setAttributeNS(null, 'cy', `${cy}in`);
counter.setAttributeNS(null, 'r', '0.25in');
counter.dataset.troopNumber = selectedSoldier.dataset.troopNumber;
counter.dataset.troopAllegiance = selectedSoldier.dataset.troopAllegiance;
counter.classList.add('counter');
text.setAttributeNS(null, 'text-anchor', 'middle');
text.setAttributeNS(null, 'x', `${cx}in`);
text.setAttributeNS(null, 'y', `${cy + 0.25}in`);
text.dataset.troopNumber = selectedSoldier.dataset.troopNumber;
text.dataset.troopAllegiance = selectedSoldier.dataset.troopAllegiance;
text.textContent = `${selectedSoldier.dataset.troopNumber}`;
text.classList.add('counter');
document.querySelectorAll(
`.counter[data-troop-number="${selectedSoldier.dataset.troopNumber}"][data-troop-allegiance="${selectedSoldier.dataset.troopAllegiance}"]`
).forEach(el => el.remove());
svg.appendChild(counter);
svg.appendChild(text);
}
});
svg.appendChild(point);
}));
let smlArc = document.createElementNS(svgns, 'polygon');
smlArc.setAttributeNS(null, 'id', 'small-arc');
let smlArcPoints = `${getPointCoords(1, 24)} ${getPointCoords(1, 21)} ${getPointCoords(2, 21)}`;
smlArc.setAttributeNS(null, 'points', smlArcPoints);
svg.appendChild(smlArc);
let medArc = document.createElementNS(svgns, 'polygon');
medArc.setAttributeNS(null, 'id', 'med-arc');
let medArcPoints = `${getPointCoords(4, 24)} ${getPointCoords(3, 21)} ${getPointCoords(6, 21)}`;
medArc.setAttributeNS(null, 'points', medArcPoints);
svg.appendChild(medArc);
let lrgArc = document.createElementNS(svgns, 'polygon');
lrgArc.setAttributeNS(null, 'id', 'lrg-arc');
let lrgArcPoints = `${getPointCoords(19, 24)} ${getPointCoords(9, 21)} ${getPointCoords(30, 21)}`;
lrgArc.setAttributeNS(null, 'points', lrgArcPoints);
svg.appendChild(lrgArc);
// arc = document.querySelector('#med-arc');
// let [ox, oy] = getPointCoords(4, 24);
// arc.style.transformOrigin = `${ox}px ${oy}px`;
// arc.style.transform = 'rotate(90deg)';
var smlArcAngle = radToDeg((Math.atan(pointDistanceInInches / (6 * calcY)) * 2));
var medArcAngle = radToDeg((Math.atan((3 * pointDistanceInInches) / (6 * calcY)) * 2));
var lrgArcAngle = radToDeg((Math.atan((21 * pointDistanceInInches) / (6 * calcY)) * 2));