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Refactor firing arc module, 'set' function

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Catalin Constantin Mititiuc 2024-04-26 14:02:46 -07:00
parent 9d02591fac
commit a5e1ebcd47
2 changed files with 71 additions and 46 deletions
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4
public/map.css
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@ -150,6 +150,10 @@ polygon.firing-arc[data-allegiance="liao"] {
stroke-width: 0.5; stroke-width: 0.5;
} }
#lines line {
stroke-opacity: 0.2;
}
#lines line { #lines line {
pointer-events: none; pointer-events: none;
} }

113
src/modules/game/firingArc.js
View File

@ -49,7 +49,7 @@ function calculateAngle(xDiff, yDiff) {
return angle; return angle;
} }
function edgePoint({ x: x1, y: y1 }, { x: x2, y: y2 }, { x: [minX, maxX], y: [minY, maxY] }) { function calcEdgePt({ x: x1, y: y1 }, { x: x2, y: y2 }, { x: [minX, maxX], y: [minY, maxY] }) {
const xDiff = x2 - x1, const xDiff = x2 - x1,
yDiff = y2 - y1, yDiff = y2 - y1,
xIntercept = y => (y - y1) * xDiff / yDiff + x1, xIntercept = y => (y - y1) * xDiff / yDiff + x1,
@ -126,8 +126,8 @@ function findWhichTwoCorners(pt, bounds, ...pts) {
return getCornerPts(bounds).filter(cp => cp[nonSharedValKey] === cornerVal); return getCornerPts(bounds).filter(cp => cp[nonSharedValKey] === cornerVal);
} }
function chooseCornerPoints(aimPt, arcPt1, arcPt2, bounds) { function selectCornerPoints(aimPt, arcPt1, arcPt2, bounds) {
const cornerPoints = getCornerPts(bounds); const cornerPts = getCornerPts(bounds);
let points; let points;
@ -137,11 +137,11 @@ function chooseCornerPoints(aimPt, arcPt1, arcPt2, bounds) {
} else if (touchOrthogonalEdges(arcPt1, arcPt2, bounds)) { } else if (touchOrthogonalEdges(arcPt1, arcPt2, bounds)) {
if (touchSameEdge(aimPt, arcPt1) || touchSameEdge(aimPt, arcPt2)) { if (touchSameEdge(aimPt, arcPt1) || touchSameEdge(aimPt, arcPt2)) {
// 1-corner case // 1-corner case
let cp = cornerPoints.find(cp => shareValue(cp, arcPt1) && shareValue(cp, arcPt2)); let cp = cornerPts.find(cp => shareValue(cp, arcPt1) && shareValue(cp, arcPt2));
points = [cp]; points = [cp];
} else { } else {
// 3-corner case // 3-corner case
points = cornerPoints.filter(cp => !shareValue(cp, arcPt1) || !shareValue(cp, arcPt2)); points = cornerPts.filter(cp => !shareValue(cp, arcPt1) || !shareValue(cp, arcPt2));
} }
} else { } else {
if (touchSameEdge(aimPt, arcPt1) || touchSameEdge(aimPt, arcPt2)) { if (touchSameEdge(aimPt, arcPt1) || touchSameEdge(aimPt, arcPt2)) {
@ -149,7 +149,7 @@ function chooseCornerPoints(aimPt, arcPt1, arcPt2, bounds) {
points = findWhichTwoCorners(aimPt, bounds, arcPt1, arcPt2); points = findWhichTwoCorners(aimPt, bounds, arcPt1, arcPt2);
} else { } else {
// 2-corner case, aim and both arc points all touch different edges // 2-corner case, aim and both arc points all touch different edges
points = cornerPoints.filter(cp => shareValue(cp, aimPt) || shareValue(cp, aimPt)); points = cornerPts.filter(cp => shareValue(cp, aimPt) || shareValue(cp, aimPt));
} }
} }
@ -162,8 +162,7 @@ function orderPoints(arcPoints, cornerPoints) {
} }
const index = cornerPoints.findIndex(cp => shareValue(cp, arcPoints.at(0))); const index = cornerPoints.findIndex(cp => shareValue(cp, arcPoints.at(0)));
cornerPoints.splice(index + 1, 0, ...arcPoints); return cornerPoints.slice(0, index + 1).concat(arcPoints).concat(cornerPoints.slice(index + 1));
return cornerPoints;
} }
function calcArcLinePtDeltas(aimPt, pivotPt, { dataset: { size }}) { function calcArcLinePtDeltas(aimPt, pivotPt, { dataset: { size }}) {
@ -184,15 +183,15 @@ function position(e, firingArc, firingArcOutline, aimLine, grid) {
pivotPt = new Point(aimLine.getAttribute('x1'), aimLine.getAttribute('y1')), pivotPt = new Point(aimLine.getAttribute('x1'), aimLine.getAttribute('y1')),
bounds = getBounds(grid.getBBox()), bounds = getBounds(grid.getBBox()),
aimPt = edgePoint(pivotPt, pointerPt, bounds), aimPt = calcEdgePt(pivotPt, pointerPt, bounds),
{ xDelta, yDelta } = calcArcLinePtDeltas(aimPt, pivotPt, firingArc), { xDelta, yDelta } = calcArcLinePtDeltas(aimPt, pivotPt, firingArc),
arcPt1 = edgePoint(pivotPt, new Point(aimPt.x - xDelta, aimPt.y - yDelta), bounds), arcPt1 = calcEdgePt(pivotPt, new Point(aimPt.x - xDelta, aimPt.y - yDelta), bounds),
arcPt2 = edgePoint(pivotPt, new Point(aimPt.x + xDelta, aimPt.y + yDelta), bounds), arcPt2 = calcEdgePt(pivotPt, new Point(aimPt.x + xDelta, aimPt.y + yDelta), bounds),
outlinePoints = [arcPt2, pivotPt, arcPt1], outlinePoints = [arcPt2, pivotPt, arcPt1],
cps = chooseCornerPoints(aimPt, arcPt1, arcPt2, bounds), cornerPoints = selectCornerPoints(aimPt, arcPt1, arcPt2, bounds),
arcPoints = orderPoints(outlinePoints, cps); arcPoints = orderPoints(outlinePoints, cornerPoints);
aimLine.setAttributeNS(null, 'x2', aimPt.x); aimLine.setAttributeNS(null, 'x2', aimPt.x);
aimLine.setAttributeNS(null, 'y2', aimPt.y); aimLine.setAttributeNS(null, 'y2', aimPt.y);
@ -211,61 +210,83 @@ function getClipPathId({ dataset: { allegiance, number }}) {
} }
function getUnclipped() { function getUnclipped() {
return svg.querySelectorAll('#firing-arcs :not([clip-path])'); return svg.querySelectorAll('#firing-arcs #shapes polygon:not([clip-path]), #firing-arcs #lines polyline:not([clip-path])');
}; };
function createAimLine(x, y, container) {
const aimLine = document.createElementNS(svgns, 'line');
aimLine.setAttributeNS(null, 'x1', x);
aimLine.setAttributeNS(null, 'y1', y);
aimLine.setAttributeNS(null, 'x2', x);
aimLine.setAttributeNS(null, 'y2', y);
container.appendChild(aimLine);
return aimLine;
}
function createClipPath(x, y, id, container) {
const clipShape = document.createElementNS(svgns, 'circle');
clipShape.setAttributeNS(null, 'cx', x);
clipShape.setAttributeNS(null, 'cy', y);
clipShape.setAttributeNS(null, 'r', clippedFiringArcRadius);
const clipPath = document.createElementNS(svgns, 'clipPath');
clipPath.setAttributeNS(null, 'id', id);
clipPath.appendChild(clipShape);
container.appendChild(clipPath);
return clipPath;
}
function createFiringArc(x, y, size, container) {
const firingArc = document.createElementNS(svgns, 'polygon');
firingArc.setAttributeNS(null, 'points', `${x},${y}`);
firingArc.dataset.size = size;
firingArc.classList.add('firing-arc', 'active');
container.appendChild(firingArc);
return firingArc;
}
function createFiringArcOutline(x, y, container) {
const firingArcOutline = document.createElementNS(svgns, 'polyline');
firingArcOutline.setAttributeNS(null, 'points', `${x},${y}`);
container.appendChild(firingArcOutline);
return firingArcOutline;
}
export default function (el) { export default function (el) {
svg = el; svg = el;
this.set = function (size, counter, { x, y }) { this.set = function (size, counter, { x, y }) {
this.get(counter).forEach(fa => fa.remove()); this.get(counter).forEach(fa => fa.remove());
let arcLayer = svg.querySelector('#shapes'); const grid = svg.querySelector('.grid'),
let outlineLayer = svg.querySelector('#lines'); arcContainer = svg.querySelector('#firing-arcs'),
let arcContainer = svg.querySelector('#firing-arcs'); arcLayer = arcContainer.querySelector('#shapes'),
let grid = svg.querySelector('.grid'); outlineLayer = arcContainer.querySelector('#lines'),
let aimLine = document.createElementNS(svgns, 'line'); aimLine = createAimLine(x, y, outlineLayer),
aimLine.setAttributeNS(null, 'x1', x); firingArc = createFiringArc(x, y, size, arcLayer),
aimLine.setAttributeNS(null, 'y1', y); firingArcOutline = createFiringArcOutline(x, y, outlineLayer),
aimLine.setAttributeNS(null, 'x2', x); clipPath = createClipPath(x, y, getClipPathId(counter), arcContainer);
aimLine.setAttributeNS(null, 'y2', y);
outlineLayer.appendChild(aimLine);
let firingArc = document.createElementNS(svgns, 'polygon');
setDataAttrs(counter, firingArc); setDataAttrs(counter, firingArc);
firingArc.setAttributeNS(null, 'points', `${x},${y}`);
firingArc.dataset.size = size;
firingArc.classList.add('firing-arc', 'active');
let firingArcOutline = document.createElementNS(svgns, 'polyline');
setDataAttrs(counter, firingArcOutline); setDataAttrs(counter, firingArcOutline);
firingArcOutline.setAttributeNS(null, 'points', `${x},${y}`);
let clipShape = document.createElementNS(svgns, 'circle');
clipShape.setAttributeNS(null, 'cx', x);
clipShape.setAttributeNS(null, 'cy', y);
clipShape.setAttributeNS(null, 'r', clippedFiringArcRadius);
let clipPath = document.createElementNS(svgns, 'clipPath');
setDataAttrs(counter, clipPath); setDataAttrs(counter, clipPath);
clipPath.setAttributeNS(null, 'id', getClipPathId(counter));
clipPath.appendChild(clipShape);
arcContainer.appendChild(clipPath);
arcLayer.appendChild(firingArc);
outlineLayer.appendChild(firingArcOutline);
function positionListener(e) { function positionListener(e) {
position(e, firingArc, firingArcOutline, aimLine, grid); position(e, firingArc, firingArcOutline, aimLine, grid);
} }
let placementListener = e => { function placementListener() {
grid.removeAttribute('style'); grid.removeAttribute('style');
aimLine.remove(); aimLine.remove();
svg.querySelectorAll('.firing-arc.active').forEach(el => el.classList.remove('active')); svg.querySelectorAll('.firing-arc.active').forEach(el => el.classList.remove('active'));
svg.removeEventListener('mousemove', positionListener); svg.removeEventListener('mousemove', positionListener);
}; }
let cancelPlacementListener = e => { let cancelPlacementListener = e => {
e.preventDefault(); e.preventDefault();