485 lines
17 KiB
JavaScript
485 lines
17 KiB
JavaScript
function isEven(n) {
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return n % 2 === 0;
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}
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function toFixed(n) {
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return Number.parseFloat(n).toFixed(2);
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}
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function radToDeg(radians) {
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return radians * 180 / Math.PI;
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}
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function calculateAngle(xDiff, yDiff) {
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yDiff = -yDiff;
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let angle = Math.abs(Math.atan(yDiff / xDiff));
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if (xDiff < 0 && yDiff > 0) {
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angle = Math.PI - angle;
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} else if (xDiff < 0 && yDiff < 0) {
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angle = Math.PI + angle;
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} else if (xDiff > 0 && yDiff < 0) {
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angle = 2 * Math.PI - angle;
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}
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return angle;
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}
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function troopSelector(number, allegiance) {
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return `[data-troop-number="${number}"][data-troop-allegiance="${allegiance}"]`;
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}
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function edgePoint(x1, y1, x2, y2, maxX, maxY) {
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let pointCoords,
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xDiff = x2 - x1,
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yDiff = y2 - y1,
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xIntercept = y => (y - y1) * xDiff / yDiff + x1,
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yIntercept = x => (x - x1) * yDiff / xDiff + y1;
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if (xDiff > 0 && yDiff > 0) {
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let x = xIntercept(maxY);
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pointCoords = x <= maxX ? [x, maxY] : [maxX, yIntercept(maxX)];
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} else if (xDiff > 0 && yDiff < 0) {
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let y = yIntercept(maxX);
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pointCoords = y >= 0 ? [maxX, y] : [xIntercept(0), 0];
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} else if (xDiff < 0 && yDiff < 0) {
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let x = xIntercept(0);
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pointCoords = x >= 0 ? [x, 0] : [0, yIntercept(0)];
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} else {
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let y = yIntercept(0);
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pointCoords = y <= maxY ? [0, y] : [xIntercept(maxY), maxY];
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}
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return pointCoords;
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}
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let getPointCoords = (x, y) => {
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let point = document.querySelector(`[data-x="${x}"][data-y="${y}"]`);
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return [point.x.baseVal.value, point.y.baseVal.value]
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};
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let svgns = "http://www.w3.org/2000/svg",
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svg = document.querySelector('svg'),
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map = document.querySelector('rect#map');
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const { x: VIEWBOX_X, y: VIEWBOX_Y, width: VIEWBOX_WIDTH, height: VIEWBOX_HEIGHT } =
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svg.viewBox.baseVal;
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const COLUMN_COUNT = 33,
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ROW_COUNT = 25,
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HORZ_POINT_DISTANCE = 1.005,
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VERT_POINT_DISTANCE = Math.sqrt(3) * HORZ_POINT_DISTANCE / 2,
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ALTERNATING_OFFSET = HORZ_POINT_DISTANCE / 2,
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[X_OFFSET, Y_OFFSET] = [0.25, 0.45],
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[COLUMNS, ROWS] = [COLUMN_COUNT, ROW_COUNT].map(n => [...Array(n).keys()]),
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POINTS = ROWS.map(y => COLUMNS.map(x => [x, y]));
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const FIRING_ARC_SIZE = {
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'small': Math.atan(HORZ_POINT_DISTANCE / (6 * VERT_POINT_DISTANCE)),
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'medium': Math.atan((HORZ_POINT_DISTANCE / 2) / VERT_POINT_DISTANCE),
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'large': Math.atan((21 * HORZ_POINT_DISTANCE) / (6 * VERT_POINT_DISTANCE))
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}
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POINTS.forEach((row, index) => row.forEach(([x, y]) => {
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var cx = x * HORZ_POINT_DISTANCE + X_OFFSET + (isEven(index) ? ALTERNATING_OFFSET : 0),
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cy = y * HORZ_POINT_DISTANCE * VERT_POINT_DISTANCE + Y_OFFSET,
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point = document.createElementNS(svgns, 'use');
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point.setAttributeNS(null, 'href', `#point`);
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point.setAttributeNS(null, 'x', `${cx}in`);
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point.setAttributeNS(null, 'y', `${cy}in`);
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point.dataset.x = x;
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point.dataset.y = y;
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point.addEventListener('click', e => {
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let selectedSoldier = document.querySelector('.soldier-record.selected');
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if (selectedSoldier) {
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let counter = document.createElementNS(svgns, 'circle'),
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text = document.createElementNS(svgns, 'text'),
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{troopNumber, troopAllegiance} = selectedSoldier.dataset,
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selector = troopSelector(troopNumber, troopAllegiance);
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counter.setAttributeNS(null, 'cx', `${cx}in`);
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counter.setAttributeNS(null, 'cy', `${cy}in`);
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counter.setAttributeNS(null, 'r', '0.25in');
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counter.dataset.troopNumber = troopNumber;
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counter.dataset.troopAllegiance = troopAllegiance;
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counter.classList.add('counter');
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text.setAttributeNS(null, 'text-anchor', 'middle');
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text.setAttributeNS(null, 'x', `${cx}in`);
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text.setAttributeNS(null, 'y', `${cy + 0.25}in`);
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text.dataset.troopNumber = troopNumber;
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text.dataset.troopAllegiance = troopAllegiance;
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text.textContent = troopNumber;
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text.classList.add('counter');
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document.querySelectorAll(`.counter${selector}`).forEach(el => el.remove());
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counter.addEventListener('click', e => {
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let selectedSoldier = document.querySelector('.soldier-record.selected');
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if (selectedSoldier) {
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let {troopNumber, troopAllegiance} = selectedSoldier.dataset,
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selector = troopSelector(troopNumber, troopAllegiance),
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targetIsSelectedSoldier = [
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e.target.dataset.troopNumber == troopNumber,
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e.target.dataset.troopAllegiance == troopAllegiance
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].every(el => el);
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if (targetIsSelectedSoldier) {
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document.querySelectorAll(`.counter${selector}`).forEach(el => el.remove());
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document.querySelectorAll(`.firing-arc${selector}`).forEach(el => el.remove());
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}
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}
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});
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counter.addEventListener('mouseenter', e => {
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let selectedSoldier = document.querySelector('.soldier-record.selected');
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if (selectedSoldier) {
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let {troopNumber, troopAllegiance} = selectedSoldier.dataset,
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selector = troopSelector(troopNumber, troopAllegiance),
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source = document.querySelector(`circle.counter${selector}`),
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sourceAndTargetAreNotTheSame = [
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troopNumber != e.target.dataset.troopNumber,
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troopAllegiance != e.target.dataset.troopAllegiance
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].some(el => el);
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if (source && sourceAndTargetAreNotTheSame) {
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let sightLine = document.createElementNS(svgns, 'line');
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sightLine.classList.add('sight-line');
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sightLine.setAttributeNS(null, 'x1', source.getAttribute('cx'));
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sightLine.setAttributeNS(null, 'y1', source.getAttribute('cy'));
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sightLine.setAttributeNS(null, 'x2', e.target.getAttribute('cx'));
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sightLine.setAttributeNS(null, 'y2', e.target.getAttribute('cy'));
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svg.appendChild(sightLine);
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}
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}
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});
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counter.addEventListener('mouseleave', e => {
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document.querySelectorAll('.sight-line').forEach(el => el.remove());
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});
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svg.appendChild(counter);
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svg.appendChild(text);
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}
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});
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point.addEventListener('mouseover', e => {
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let selectedSoldier = document.querySelector('.soldier-record.selected');
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if (selectedSoldier) {
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e.target.classList.add('active');
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}
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});
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point.addEventListener('mouseout', e => e.target.removeAttribute('class'));
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svg.appendChild(point);
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}));
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map.addEventListener('mousemove', e => {
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let boundingRect = e.target.getBoundingClientRect();
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let pointerX = e.clientX - boundingRect.left;
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let pointerY = e.clientY - boundingRect.top;
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let [maxXpx, maxYpx] = [e.target.width, e.target.height].map(v => v.baseVal.value);
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// console.log('x', `${toFixed(x / boundingRect.width * maxX)}"`, 'y', `${toFixed(y / boundingRect.height * maxY)}"`);
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let activeFiringArc = document.querySelector('polygon.firing-arc.active');
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// TODO: handle exactly horizontal and vertical lines
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if (activeFiringArc) {
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let {x: x1px, y: y1px} = activeFiringArc.points[0];
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let [x2px, y2px] = [
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pointerX / boundingRect.width * maxXpx,
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pointerY / boundingRect.height * maxYpx
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];
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let xDiff = x2px - x1px;
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let yDiff = y2px - y1px;
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let angle = calculateAngle(xDiff, yDiff);
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console.log('angle:', `${toFixed(radToDeg(angle))}\u00B0`, `${angle}rad`);
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let arcAngle = FIRING_ARC_SIZE[activeFiringArc.dataset.size];
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let distance = Math.sqrt((x2px - x1px)**2 + (y2px - y1px)**2);
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let yDelta = distance * Math.cos(angle) * Math.tan(arcAngle);
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let xDelta = distance * Math.sin(angle) * Math.tan(arcAngle);
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let [newY1, newX1] = [y2px + yDelta, x2px + xDelta];
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let [newY2, newX2] = [y2px - yDelta, x2px - xDelta];
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[newX1, newY1] = edgePoint(x1px, y1px, newX1, newY1, maxXpx, maxYpx);
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[newX2, newY2] = edgePoint(x1px, y1px, newX2, newY2, maxXpx, maxYpx);
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let oppositeEdgeConditions = [
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newX1 == 0 && newX2 == maxXpx,
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newX2 == 0 && newX1 == maxXpx,
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newY1 == 0 && newY2 == maxYpx,
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newY2 == 0 && newY1 == maxYpx
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]
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let orthogonalEdgeConditions = [
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(newX1 == 0 || newX1 == maxXpx) && (newY2 == 0 || newY2 == maxYpx),
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(newX2 == 0 || newX2 == maxXpx) && (newY1 == 0 || newY1 == maxYpx),
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]
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let points;
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if (oppositeEdgeConditions.some(e => e)) {
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let cornerPoints;
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if (xDiff > 0 && yDiff > 0) {
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if ((newY1 == 0 && newY2 == maxYpx) || (newY1 == maxYpx && newY2 == 0)) {
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cornerPoints = [[maxXpx, 0], [maxXpx, maxYpx]];
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} else {
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cornerPoints = [[maxXpx, maxYpx], [0, maxYpx]];
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}
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} else if (xDiff > 0 && yDiff < 0) {
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if ((newY1 == 0 && newY2 == maxYpx) || (newY1 == maxYpx && newY2 == 0)) {
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cornerPoints = [[maxXpx, 0], [maxXpx, maxYpx]];
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} else {
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cornerPoints = [[0, 0], [maxXpx, 0]];
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}
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} else if (xDiff < 0 && yDiff > 0) {
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if ((newY1 == 0 && newY2 == maxYpx) || (newY1 == maxYpx && newY2 == 0)) {
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cornerPoints = [[0, maxYpx], [0, 0]];
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} else {
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cornerPoints = [[maxXpx, maxYpx], [0, maxYpx]];
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}
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} else {
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if ((newY1 == 0 && newY2 == maxYpx) || (newY1 == maxYpx && newY2 == 0)) {
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cornerPoints = [[0, maxYpx], [0, 0]];
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} else {
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cornerPoints = [[0, 0], [maxXpx, 0]];
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}
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}
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points = `${x1px},${y1px} ${newX1},${newY1} ${cornerPoints[1]} ${cornerPoints[0]} ${newX2},${newY2}`;
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} else if (orthogonalEdgeConditions.some(e => e)) {
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let cornerPoints = [];
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let cp1, cp2;
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if (newX1 == 0 || newX1 == maxXpx) {
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cp1 = [newX1, yDiff > 0 ? maxYpx : 0];
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} else {
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cp1 = [xDiff > 0 ? maxXpx : 0, newY1];
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}
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if (newX2 == 0 || newX2 == maxXpx) {
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cp2 = [newX2, yDiff > 0 ? maxYpx : 0];
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} else {
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cp2 = [xDiff > 0 ? maxXpx : 0, newY2];
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}
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if (cp1[0] == cp2[0] && cp1[1] == cp2[1]) {
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cornerPoints.push(cp1);
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} else {
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cornerPoints.push(cp1);
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cornerPoints.push([xDiff > 0 ? maxXpx : 0, yDiff > 0 ? maxYpx : 0])
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cornerPoints.push(cp2);
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}
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points = `${x1px},${y1px} ${newX1},${newY1} ${cornerPoints.join(' ')} ${newX2},${newY2}`;
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} else {
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points = `${x1px},${y1px} ${newX1},${newY1} ${newX2},${newY2}`;
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}
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activeFiringArc.setAttributeNS(null, 'points', points);
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}
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});
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document.querySelectorAll('.soldier-record').forEach(el =>
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el.addEventListener('click', e => {
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if (el.classList.contains('selected')) {
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el.classList.remove('selected');
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} else {
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document.querySelectorAll('.soldier-record.selected').forEach(el =>
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el.classList.remove('selected')
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);
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el.classList.add('selected');
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}
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})
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);
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document.querySelectorAll('.set-firing-arc').forEach(el => el.addEventListener('click', e => {
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let selectedSoldier = document.querySelector('.soldier-record.selected');
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if (selectedSoldier) {
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let {troopNumber, troopAllegiance} = selectedSoldier.dataset;
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let existingArcs = document.querySelectorAll(
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`.firing-arc[data-troop-number="${troopNumber}"][data-troop-allegiance="${troopAllegiance}"]`
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);
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existingArcs.forEach(el => el.remove());
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let counter = document.querySelector(
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`circle.counter[data-troop-number="${troopNumber}"][data-troop-allegiance="${troopAllegiance}"]`
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);
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if (counter) {
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let arcLayer = document.getElementById('firing-arcs');
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let firingArcPlacementListener = e => {
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document.querySelectorAll('.firing-arc.active').forEach(el => el.classList.remove('active'));
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document.querySelector('circle#point').style.display = '';
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map.removeEventListener('click', firingArcPlacementListener);
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};
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map.addEventListener('click', firingArcPlacementListener);
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let pivotPoint = [counter.cx.baseVal.value, counter.cy.baseVal.value];
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let firingArc = document.createElementNS(svgns, 'polygon');
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firingArc.classList.add('firing-arc', 'active');
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firingArc.dataset.troopNumber = troopNumber;
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firingArc.dataset.troopAllegiance = troopAllegiance;
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firingArc.dataset.size = e.target.dataset.size;
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firingArc.setAttributeNS(null, 'points', `${pivotPoint} ${pivotPoint} ${pivotPoint}`);
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arcLayer.prepend(firingArc);
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document.querySelector('circle#point').style.display = 'none';
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}
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}
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}));
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document.querySelectorAll('.clear-firing-arcs').forEach(el =>
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el.addEventListener('click', ({target: {dataset: {allegiance}}}) =>
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document
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.querySelectorAll(`.firing-arc[data-troop-allegiance="${allegiance}"]`)
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.forEach(el => el.remove())
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)
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);
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// document.getElementById('debug-view-box').addEventListener('wheel', e => {
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svg.addEventListener('wheel', e => {
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e.preventDefault();
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let el = document.querySelector('svg');
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// let vb = document.getElementById('debug-view-box');
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let boundingRect = el.getBoundingClientRect();
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// let boundingRect = vb.getBoundingClientRect();
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let pointerX = e.clientX - boundingRect.left;
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let pointerY = e.clientY - boundingRect.top;
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let { x, y, width, height } = el.viewBox.baseVal;
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// let [x, y, width, height] = [vb.x, vb.y, vb.width, vb.height].map(v => v.baseVal.value);
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let widthDelta = width * 0.25;
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let heightDelta = height * 0.25;
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let xChange = pointerX / boundingRect.width * widthDelta;
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let widthChange = (1 - (pointerX / boundingRect.width)) * widthDelta;
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let yChange = pointerY / boundingRect.height * heightDelta;
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let heightChange = (1 - (pointerY / boundingRect.height)) * heightDelta;
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let newX = e.deltaY < 0 ? x + xChange : x - xChange;
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let newWidth = e.deltaY < 0 ? width - xChange - widthChange : width + xChange + widthChange;
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let newY = e.deltaY < 0 ? y + yChange : y - yChange;
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let newHeight = e.deltaY < 0 ? height - yChange - heightChange : height + yChange + heightChange;
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console.log('VIEWBOX_X', 'VIEWBOX_Y', VIEWBOX_X, VIEWBOX_Y);
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console.log('VIEWBOX_WIDTH', 'VIEWBOX_HEIGHT', VIEWBOX_WIDTH, VIEWBOX_HEIGHT);
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// console.log('VIEWBOX_WIDTH - newX', VIEWBOX_WIDTH - newX);
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let myNewX, myNewY, myNewWidth, myNewHeight;
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myNewX = newX < VIEWBOX_X ? VIEWBOX_X : newX;
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myNewY = newY < VIEWBOX_Y ? VIEWBOX_Y : newY;
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myNewWidth = newWidth + newX > VIEWBOX_WIDTH ? VIEWBOX_WIDTH - newX : newWidth;
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// myNewHeight = newHeight > VIEWBOX_HEIGHT ? VIEWBOX_HEIGHT : newHeight;
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myNewHeight = newHeight;
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console.log('newWidth + newX', newWidth + newX)
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if (newWidth + newX > VIEWBOX_WIDTH + VIEWBOX_X && newX < VIEWBOX_X) {
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// console.log("left and right sides would both exceed margins")
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newWidth = VIEWBOX_WIDTH;
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newX = VIEWBOX_X;
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} else if (newWidth + newX > VIEWBOX_WIDTH + VIEWBOX_X) {
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// console.log("right side only would exceed margin")
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// console.log('newWidth + newX', newWidth + newX)
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// console.log('VIEWBOX_WIDTH - 100', VIEWBOX_WIDTH - 100)
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let diff = newWidth + newX - VIEWBOX_WIDTH - VIEWBOX_X;
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console.log('diff', diff);
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newX = newX - diff;
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}
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if (newHeight + newY > VIEWBOX_HEIGHT + VIEWBOX_Y && newY < VIEWBOX_Y) {
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newHeight = VIEWBOX_HEIGHT;
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newY = VIEWBOX_Y;
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} else if (newHeight + newY > VIEWBOX_HEIGHT + VIEWBOX_Y) {
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let diff = newHeight + newY - VIEWBOX_HEIGHT - VIEWBOX_Y;
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newY = newY - diff;
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}
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newX = newX < VIEWBOX_X ? VIEWBOX_X : newX;
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newY = newY < VIEWBOX_Y ? VIEWBOX_Y : newY;
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// console.log('newX', 'newY', newX, newY);
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// console.log('newWidth', 'newHeight', newWidth, newHeight);
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// console.log('myNewX', 'myNewY', myNewX, myNewY);
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// console.log('myNewWidth', 'myNewHeight', myNewWidth, myNewHeight);
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// console.log('newWidth + newX', newWidth + newX);
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// vb.setAttributeNS(null, 'x', newX);
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// vb.setAttributeNS(null, 'y', newY);
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// vb.setAttributeNS(null, 'width', newWidth);
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// vb.setAttributeNS(null, 'height', newHeight);
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// let newViewBox = [
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// newX < VIEWBOX_X ? VIEWBOX_X : newX,
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// newY < VIEWBOX_Y ? VIEWBOX_Y : newY,
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// newWidth + newX > VIEWBOX_WIDTH ? VIEWBOX_WIDTH - newX : newWidth,
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// newHeight > VIEWBOX_HEIGHT ? VIEWBOX_HEIGHT : newHeight
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// ]
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// newViewBoxX = newX < VIEWBOX_X ? VIEWBOX_X : newX;
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// newViewBoxY = newY < VIEWBOX_Y ? VIEWBOX_Y : newY;
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// newViewBoxWidth = newWidth + newX > VIEWBOX_WIDTH ? VIEWBOX_WIDTH - newX : newWidth;
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// newViewBoxHeight = newHeight + newY > VIEWBOX_HEIGHT ? VIEWBOX_HEIGHT - newY: newHeight;
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// if (newWidth + newX > VIEWBOX_WIDTH) {
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// newViewBoxWidth = VIEWBOX_WIDTH - newX;
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// let newWidthRatio = newWidth / newViewBoxWidth;
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// let widthRatio = VIEWBOX_WIDTH / VIEWBOX_HEIGHT;
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// newViewBoxHeight =
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// } else {
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// newViewBoxWidth = newWidth;
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// newViewBoxHeight = newHeight;
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// }
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el.setAttributeNS(null, 'viewBox', `${newX} ${newY} ${newWidth} ${newHeight}`);
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// let vb = [
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// newViewBoxX,
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// newViewBoxY,
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// newViewBoxWidth,
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// newViewBoxHeight,
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// ].join(' ');
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// el.setAttributeNS(null, 'viewBox', vb);
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}, { passive: false }); |