Fantasy-Map-Generator/modules/ui/layers.js
2024-09-04 20:43:16 +02:00

1442 lines
48 KiB
JavaScript

// UI module stub to control map layers
"use strict";
let presets = {}; // global object
restoreCustomPresets(); // run on-load
function getDefaultPresets() {
return {
political: [
"toggleBorders",
"toggleIcons",
"toggleIce",
"toggleLabels",
"toggleRivers",
"toggleRoutes",
"toggleScaleBar",
"toggleStates",
"toggleVignette"
],
cultural: [
"toggleBorders",
"toggleCultures",
"toggleIcons",
"toggleLabels",
"toggleRivers",
"toggleRoutes",
"toggleScaleBar",
"toggleVignette"
],
religions: [
"toggleBorders",
"toggleIcons",
"toggleLabels",
"toggleReligions",
"toggleRivers",
"toggleRoutes",
"toggleScaleBar",
"toggleVignette"
],
provinces: ["toggleBorders", "toggleIcons", "toggleProvinces", "toggleRivers", "toggleScaleBar", "toggleVignette"],
biomes: ["toggleBiomes", "toggleIce", "toggleRivers", "toggleScaleBar", "toggleVignette"],
heightmap: ["toggleHeight", "toggleRivers", "toggleVignette"],
physical: ["toggleCoordinates", "toggleHeight", "toggleIce", "toggleRivers", "toggleScaleBar", "toggleVignette"],
poi: [
"toggleBorders",
"toggleHeight",
"toggleIce",
"toggleIcons",
"toggleMarkers",
"toggleRivers",
"toggleRoutes",
"toggleScaleBar",
"toggleVignette"
],
military: [
"toggleBorders",
"toggleIcons",
"toggleLabels",
"toggleMilitary",
"toggleRivers",
"toggleRoutes",
"toggleScaleBar",
"toggleStates",
"toggleVignette"
],
emblems: [
"toggleBorders",
"toggleIcons",
"toggleIce",
"toggleEmblems",
"toggleRivers",
"toggleRoutes",
"toggleScaleBar",
"toggleStates",
"toggleVignette"
],
landmass: ["toggleScaleBar"]
};
}
function restoreCustomPresets() {
presets = getDefaultPresets();
const storedPresets = JSON.parse(localStorage.getItem("presets"));
if (!storedPresets) return;
for (const preset in storedPresets) {
if (presets[preset]) continue;
layersPreset.add(new Option(preset, preset));
}
presets = storedPresets;
}
// run on map generation
function applyPreset() {
const preset = localStorage.getItem("preset") || byId("layersPreset").value;
changePreset(preset);
}
// toggle layers on preset change
function changePreset(preset) {
const layers = presets[preset]; // layers to be turned on
document
.getElementById("mapLayers")
.querySelectorAll("li")
.forEach(function (e) {
if (layers.includes(e.id) && !layerIsOn(e.id)) e.click();
else if (!layers.includes(e.id) && layerIsOn(e.id)) e.click();
});
layersPreset.value = preset;
localStorage.setItem("preset", preset);
const isDefault = getDefaultPresets()[preset];
removePresetButton.style.display = isDefault ? "none" : "inline-block";
savePresetButton.style.display = "none";
if (byId("canvas3d")) setTimeout(ThreeD.update(), 400);
}
function savePreset() {
prompt("Please provide a preset name", {default: ""}, preset => {
presets[preset] = Array.from(byId("mapLayers").querySelectorAll("li:not(.buttonoff)"))
.map(node => node.id)
.sort();
layersPreset.add(new Option(preset, preset, false, true));
localStorage.setItem("presets", JSON.stringify(presets));
localStorage.setItem("preset", preset);
removePresetButton.style.display = "inline-block";
savePresetButton.style.display = "none";
});
}
function removePreset() {
const preset = layersPreset.value;
delete presets[preset];
const index = Array.from(layersPreset.options).findIndex(o => o.value === preset);
layersPreset.options.remove(index);
layersPreset.value = "custom";
removePresetButton.style.display = "none";
savePresetButton.style.display = "inline-block";
localStorage.setItem("presets", JSON.stringify(presets));
localStorage.removeItem("preset");
}
function getCurrentPreset() {
const layers = Array.from(byId("mapLayers").querySelectorAll("li:not(.buttonoff)"))
.map(node => node.id)
.sort();
const defaultPresets = getDefaultPresets();
for (const preset in presets) {
if (JSON.stringify(presets[preset]) !== JSON.stringify(layers)) continue;
layersPreset.value = preset;
removePresetButton.style.display = defaultPresets[preset] ? "none" : "inline-block";
savePresetButton.style.display = "none";
return;
}
layersPreset.value = "custom";
removePresetButton.style.display = "none";
savePresetButton.style.display = "inline-block";
}
// run on map regeneration
function restoreLayers() {
if (layerIsOn("toggleTexture")) drawTexture();
if (layerIsOn("toggleHeight")) drawHeightmap();
if (layerIsOn("toggleCells")) drawCells();
if (layerIsOn("toggleGrid")) drawGrid();
if (layerIsOn("toggleCoordinates")) drawCoordinates();
if (layerIsOn("toggleCompass")) compass.style("display", "block");
if (layerIsOn("toggleRoutes")) drawRoutes();
if (layerIsOn("toggleTemp")) drawTemp();
if (layerIsOn("togglePrec")) drawPrec();
if (layerIsOn("togglePopulation")) drawPopulation();
if (layerIsOn("toggleBiomes")) drawBiomes();
if (layerIsOn("toggleRelief")) ReliefIcons.draw();
if (layerIsOn("toggleCultures")) drawCultures();
if (layerIsOn("toggleProvinces")) drawProvinces();
if (layerIsOn("toggleReligions")) drawReligions();
if (layerIsOn("toggleIce")) drawIce();
if (layerIsOn("toggleEmblems")) drawEmblems();
if (layerIsOn("toggleMarkers")) drawMarkers();
if (layerIsOn("toggleZones")) drawZones();
if (layerIsOn("toggleBorders")) drawBorders();
if (layerIsOn("toggleStates")) drawStates();
if (layerIsOn("toggleRivers")) drawRivers();
}
function toggleHeight(event) {
if (customization === 1) return tip("You cannot turn off the layer when heightmap is in edit mode", false, "error");
const children = terrs.selectAll("#oceanHeights > *, #landHeights > *");
if (!children.size()) {
turnButtonOn("toggleHeight");
drawHeightmap();
if (event && isCtrlClick(event)) editStyle("terrs");
} else {
if (event && isCtrlClick(event)) return editStyle("terrs");
turnButtonOff("toggleHeight");
children.remove();
}
}
function getColor(value, scheme = getColorScheme("bright")) {
return scheme(1 - (value < 20 ? value - 5 : value) / 100);
}
function toggleTemp(event) {
if (!temperature.selectAll("*").size()) {
turnButtonOn("toggleTemp");
drawTemp();
if (event && isCtrlClick(event)) editStyle("temperature");
} else {
if (event && isCtrlClick(event)) {
editStyle("temperature");
return;
}
turnButtonOff("toggleTemp");
temperature.selectAll("*").remove();
}
}
function drawTemp() {
TIME && console.time("drawTemp");
temperature.selectAll("*").remove();
lineGen.curve(d3.curveBasisClosed);
const scheme = d3.scaleSequential(d3.interpolateSpectral);
const tMax = +temperatureEquatorOutput.max,
tMin = +temperatureEquatorOutput.min,
delta = tMax - tMin;
const cells = grid.cells,
vertices = grid.vertices,
n = cells.i.length;
const used = new Uint8Array(n); // to detect already passed cells
const min = d3.min(cells.temp),
max = d3.max(cells.temp);
const step = Math.max(Math.round(Math.abs(min - max) / 5), 1);
const isolines = d3.range(min + step, max, step);
const chains = [],
labels = []; // store label coordinates
for (const i of cells.i) {
const t = cells.temp[i];
if (used[i] || !isolines.includes(t)) continue;
const start = findStart(i, t);
if (!start) continue;
used[i] = 1;
const chain = connectVertices(start, t); // vertices chain to form a path
const relaxed = chain.filter((v, i) => i % 4 === 0 || vertices.c[v].some(c => c >= n));
if (relaxed.length < 6) continue;
const points = relaxed.map(v => vertices.p[v]);
chains.push([t, points]);
addLabel(points, t);
}
// min temp isoline covers all graph
temperature
.append("path")
.attr("d", `M0,0 h${graphWidth} v${graphHeight} h${-graphWidth} Z`)
.attr("fill", scheme(1 - (min - tMin) / delta))
.attr("stroke", "none");
for (const t of isolines) {
const path = chains
.filter(c => c[0] === t)
.map(c => round(lineGen(c[1])))
.join("");
if (!path) continue;
const fill = scheme(1 - (t - tMin) / delta),
stroke = d3.color(fill).darker(0.2);
temperature.append("path").attr("d", path).attr("fill", fill).attr("stroke", stroke);
}
const tempLabels = temperature.append("g").attr("id", "tempLabels").attr("fill-opacity", 1);
tempLabels
.selectAll("text")
.data(labels)
.enter()
.append("text")
.attr("x", d => d[0])
.attr("y", d => d[1])
.text(d => convertTemperature(d[2]));
// find cell with temp < isotherm and find vertex to start path detection
function findStart(i, t) {
if (cells.b[i]) return cells.v[i].find(v => vertices.c[v].some(c => c >= n)); // map border cell
return cells.v[i][cells.c[i].findIndex(c => cells.temp[c] < t || !cells.temp[c])];
}
function addLabel(points, t) {
const c = svgWidth / 2; // map center x coordinate
// add label on isoline top center
const tc = points[d3.scan(points, (a, b) => a[1] - b[1] + (Math.abs(a[0] - c) - Math.abs(b[0] - c)) / 2)];
pushLabel(tc[0], tc[1], t);
// add label on isoline bottom center
if (points.length > 20) {
const bc = points[d3.scan(points, (a, b) => b[1] - a[1] + (Math.abs(a[0] - c) - Math.abs(b[0] - c)) / 2)];
const dist2 = (tc[1] - bc[1]) ** 2 + (tc[0] - bc[0]) ** 2; // square distance between this and top point
if (dist2 > 100) pushLabel(bc[0], bc[1], t);
}
}
function pushLabel(x, y, t) {
if (x < 20 || x > svgWidth - 20) return;
if (y < 20 || y > svgHeight - 20) return;
labels.push([x, y, t]);
}
// connect vertices to chain
function connectVertices(start, t) {
const chain = []; // vertices chain to form a path
for (let i = 0, current = start; i === 0 || (current !== start && i < 20000); i++) {
const prev = chain[chain.length - 1]; // previous vertex in chain
chain.push(current); // add current vertex to sequence
const c = vertices.c[current]; // cells adjacent to vertex
c.filter(c => cells.temp[c] === t).forEach(c => (used[c] = 1));
const c0 = c[0] >= n || cells.temp[c[0]] < t;
const c1 = c[1] >= n || cells.temp[c[1]] < t;
const c2 = c[2] >= n || cells.temp[c[2]] < t;
const v = vertices.v[current]; // neighboring vertices
if (v[0] !== prev && c0 !== c1) current = v[0];
else if (v[1] !== prev && c1 !== c2) current = v[1];
else if (v[2] !== prev && c0 !== c2) current = v[2];
if (current === chain[chain.length - 1]) {
ERROR && console.error("Next vertex is not found");
break;
}
}
chain.push(start);
return chain;
}
TIME && console.timeEnd("drawTemp");
}
function toggleBiomes(event) {
if (!biomes.selectAll("path").size()) {
turnButtonOn("toggleBiomes");
drawBiomes();
if (event && isCtrlClick(event)) editStyle("biomes");
} else {
if (event && isCtrlClick(event)) {
editStyle("biomes");
return;
}
biomes.selectAll("path").remove();
turnButtonOff("toggleBiomes");
}
}
function drawBiomes() {
biomes.selectAll("path").remove();
const cells = pack.cells,
vertices = pack.vertices,
n = cells.i.length;
const used = new Uint8Array(cells.i.length);
const paths = new Array(biomesData.i.length).fill("");
for (const i of cells.i) {
if (!cells.biome[i]) continue; // no need to mark marine biome (liquid water)
if (used[i]) continue; // already marked
const b = cells.biome[i];
const onborder = cells.c[i].some(n => cells.biome[n] !== b);
if (!onborder) continue;
const edgeVerticle = cells.v[i].find(v => vertices.c[v].some(i => cells.biome[i] !== b));
const chain = connectVertices(edgeVerticle, b);
if (chain.length < 3) continue;
const points = clipPoly(
chain.map(v => vertices.p[v]),
1
);
paths[b] += "M" + points.join("L") + "Z";
}
paths.forEach(function (d, i) {
if (d.length < 10) return;
biomes
.append("path")
.attr("d", d)
.attr("fill", biomesData.color[i])
.attr("stroke", biomesData.color[i])
.attr("id", "biome" + i);
});
// connect vertices to chain
function connectVertices(start, b) {
const chain = []; // vertices chain to form a path
for (let i = 0, current = start; i === 0 || (current !== start && i < 20000); i++) {
const prev = chain[chain.length - 1]; // previous vertex in chain
chain.push(current); // add current vertex to sequence
const c = vertices.c[current]; // cells adjacent to vertex
c.filter(c => cells.biome[c] === b).forEach(c => (used[c] = 1));
const c0 = c[0] >= n || cells.biome[c[0]] !== b;
const c1 = c[1] >= n || cells.biome[c[1]] !== b;
const c2 = c[2] >= n || cells.biome[c[2]] !== b;
const v = vertices.v[current]; // neighboring vertices
if (v[0] !== prev && c0 !== c1) current = v[0];
else if (v[1] !== prev && c1 !== c2) current = v[1];
else if (v[2] !== prev && c0 !== c2) current = v[2];
if (current === chain[chain.length - 1]) {
ERROR && console.error("Next vertex is not found");
break;
}
}
return chain;
}
}
function togglePrec(event) {
if (!prec.selectAll("circle").size()) {
turnButtonOn("togglePrec");
drawPrec();
if (event && isCtrlClick(event)) editStyle("prec");
} else {
if (event && isCtrlClick(event)) {
editStyle("prec");
return;
}
turnButtonOff("togglePrec");
const hide = d3.transition().duration(1000).ease(d3.easeSinIn);
prec.selectAll("text").attr("opacity", 1).transition(hide).attr("opacity", 0);
prec.selectAll("circle").transition(hide).attr("r", 0).remove();
prec.transition().delay(1000).style("display", "none");
}
}
function drawPrec() {
prec.selectAll("circle").remove();
const {cells, points} = grid;
prec.style("display", "block");
const show = d3.transition().duration(800).ease(d3.easeSinIn);
prec.selectAll("text").attr("opacity", 0).transition(show).attr("opacity", 1);
const cellsNumberModifier = (pointsInput.dataset.cells / 10000) ** 0.25;
const data = cells.i.filter(i => cells.h[i] >= 20 && cells.prec[i]);
const getRadius = prec => rn(Math.sqrt(prec / 4) / cellsNumberModifier, 2);
prec
.selectAll("circle")
.data(data)
.enter()
.append("circle")
.attr("cx", d => points[d][0])
.attr("cy", d => points[d][1])
.attr("r", 0)
.transition(show)
.attr("r", d => getRadius(cells.prec[d]));
}
function togglePopulation(event) {
if (!population.selectAll("line").size()) {
turnButtonOn("togglePopulation");
drawPopulation();
if (event && isCtrlClick(event)) editStyle("population");
} else {
if (event && isCtrlClick(event)) {
editStyle("population");
return;
}
turnButtonOff("togglePopulation");
const isD3data = population.select("line").datum();
if (!isD3data) {
// just remove
population.selectAll("line").remove();
} else {
// remove with animation
const hide = d3.transition().duration(1000).ease(d3.easeSinIn);
population
.select("#rural")
.selectAll("line")
.transition(hide)
.attr("y2", d => d[1])
.remove();
population
.select("#urban")
.selectAll("line")
.transition(hide)
.delay(1000)
.attr("y2", d => d[1])
.remove();
}
}
}
function drawPopulation(event) {
population.selectAll("line").remove();
const cells = pack.cells,
p = cells.p,
burgs = pack.burgs;
const show = d3.transition().duration(2000).ease(d3.easeSinIn);
const rural = Array.from(
cells.i.filter(i => cells.pop[i] > 0),
i => [p[i][0], p[i][1], p[i][1] - cells.pop[i] / 8]
);
population
.select("#rural")
.selectAll("line")
.data(rural)
.enter()
.append("line")
.attr("x1", d => d[0])
.attr("y1", d => d[1])
.attr("x2", d => d[0])
.attr("y2", d => d[1])
.transition(show)
.attr("y2", d => d[2]);
const urban = burgs.filter(b => b.i && !b.removed).map(b => [b.x, b.y, b.y - (b.population / 8) * urbanization]);
population
.select("#urban")
.selectAll("line")
.data(urban)
.enter()
.append("line")
.attr("x1", d => d[0])
.attr("y1", d => d[1])
.attr("x2", d => d[0])
.attr("y2", d => d[1])
.transition(show)
.delay(500)
.attr("y2", d => d[2]);
}
function toggleCells(event) {
if (!cells.selectAll("path").size()) {
turnButtonOn("toggleCells");
drawCells();
if (event && isCtrlClick(event)) editStyle("cells");
} else {
if (event && isCtrlClick(event)) {
editStyle("cells");
return;
}
cells.selectAll("path").remove();
turnButtonOff("toggleCells");
}
}
function drawCells() {
cells.selectAll("path").remove();
const data = customization === 1 ? grid.cells.i : pack.cells.i;
const polygon = customization === 1 ? getGridPolygon : getPackPolygon;
let path = "";
data.forEach(i => (path += "M" + polygon(i)));
cells.append("path").attr("d", path);
}
function toggleIce(event) {
if (!layerIsOn("toggleIce")) {
turnButtonOn("toggleIce");
$("#ice").fadeIn();
if (!ice.selectAll("*").size()) drawIce();
if (event && isCtrlClick(event)) editStyle("ice");
} else {
if (event && isCtrlClick(event)) return editStyle("ice");
$("#ice").fadeOut();
turnButtonOff("toggleIce");
}
}
function drawIce() {
TIME && console.time("drawIce");
const {cells, features} = grid;
const {temp, h} = cells;
Math.random = aleaPRNG(seed);
const ICEBERG_MAX_TEMP = 1;
const ICE_SHIELD_MAX_TEMP = -8;
// very cold: draw ice shields
{
const type = "iceShield";
const getType = cellId => (temp[cellId] <= ICE_SHIELD_MAX_TEMP ? type : null);
const isolines = getIsolines(grid, getType, {polygons: true});
isolines[type]?.polygons?.forEach(points => {
const clipped = clipPoly(points);
ice.append("polygon").attr("points", clipped).attr("type", type);
});
}
// mildly cold: draw icebergs
for (const cellId of grid.cells.i) {
const t = temp[cellId];
if (t > ICEBERG_MAX_TEMP) continue; // too warm: no icebergs
if (t <= ICE_SHIELD_MAX_TEMP) continue; // already drawn as ice shield
if (h[cellId] >= 20) continue; // no icebergs on land
if (features[cells.f[cellId]].type === "lake") continue; // no icebers on lakes
const tNormalized = normalize(t, -8, 2);
const randomFactor = t > -5 ? 0.4 + rand() * 1.2 : 1;
if (P(tNormalized ** 0.5 * randomFactor)) continue; // cold: skip some cells
let defaultSize = 1 - tNormalized; // iceberg size: 0 = zero size, 1 = full size
if (cells.t[cellId] === -1) defaultSize /= 1.3; // coasline: smaller icebergs
const size = minmax(rn(defaultSize * randomFactor, 2), 0.08, 1);
const [cx, cy] = grid.points[cellId];
const points = getGridPolygon(cellId).map(([x, y]) => [rn(lerp(cx, x, size), 2), rn(lerp(cy, y, size), 2)]);
ice.append("polygon").attr("points", points).attr("cell", cellId).attr("size", size);
}
TIME && console.timeEnd("drawIce");
}
function toggleCultures(event) {
const cultures = pack.cultures.filter(c => c.i && !c.removed);
const empty = !cults.selectAll("path").size();
if (empty && cultures.length) {
turnButtonOn("toggleCultures");
drawCultures();
if (event && isCtrlClick(event)) editStyle("cults");
} else {
if (event && isCtrlClick(event)) return editStyle("cults");
cults.selectAll("path").remove();
turnButtonOff("toggleCultures");
}
}
function drawCultures() {
TIME && console.time("drawCultures");
const {cells, cultures} = pack;
const bodyPaths = new Array(cultures.length - 1);
const isolines = getIsolines(pack, cellId => cells.culture[cellId], {fill: true, waterGap: true});
Object.entries(isolines).forEach(([index, {fill, waterGap}]) => {
const color = cultures[index].color;
bodyPaths.push(getGappedFillPaths("culture", fill, waterGap, color, index));
});
byId("cults").innerHTML = bodyPaths.join("");
TIME && console.timeEnd("drawCultures");
}
function toggleReligions(event) {
const religions = pack.religions.filter(r => r.i && !r.removed);
if (!relig.selectAll("path").size() && religions.length) {
turnButtonOn("toggleReligions");
drawReligions();
if (event && isCtrlClick(event)) editStyle("relig");
} else {
if (event && isCtrlClick(event)) return editStyle("relig");
relig.selectAll("path").remove();
turnButtonOff("toggleReligions");
}
}
function drawReligions() {
TIME && console.time("drawReligions");
const {cells, religions} = pack;
const bodyPaths = new Array(religions.length - 1);
const isolines = getIsolines(pack, cellId => cells.religion[cellId], {fill: true, waterGap: true});
Object.entries(isolines).forEach(([index, {fill, waterGap}]) => {
const color = religions[index].color;
bodyPaths.push(getGappedFillPaths("religion", fill, waterGap, color, index));
});
byId("relig").innerHTML = bodyPaths.join("");
TIME && console.timeEnd("drawReligions");
}
function toggleStates(event) {
if (!layerIsOn("toggleStates")) {
turnButtonOn("toggleStates");
drawStates();
if (event && isCtrlClick(event)) editStyle("regions");
} else {
if (event && isCtrlClick(event)) return editStyle("regions");
regions.selectAll("path").remove();
turnButtonOff("toggleStates");
}
}
function drawStates() {
TIME && console.time("drawStates");
const {cells, states} = pack;
const maxLength = states.length - 1;
const bodyPaths = new Array(maxLength);
const clipPaths = new Array(maxLength);
const haloPaths = new Array(maxLength);
const renderHalo = shapeRendering.value === "geometricPrecision";
const isolines = getIsolines(pack, cellId => cells.state[cellId], {fill: true, waterGap: true, halo: renderHalo});
Object.entries(isolines).forEach(([index, {fill, waterGap, halo}]) => {
const color = states[index].color;
bodyPaths.push(getGappedFillPaths("state", fill, waterGap, color, index));
if (renderHalo) {
const haloColor = d3.color(color)?.darker().hex() || "#666666";
clipPaths.push(/* html */ `<clipPath id="state-clip${index}"><use href="#state${index}"/></clipPath>`);
haloPaths.push(
/* html */ `<path id="state-border${index}" d="${halo}" clip-path="url(#state-clip${index})" stroke="${haloColor}"/>`
);
}
});
byId("statesBody").innerHTML = bodyPaths.join("");
byId("statePaths").innerHTML = renderHalo ? clipPaths.join("") : "";
byId("statesHalo").innerHTML = renderHalo ? haloPaths.join("") : "";
TIME && console.timeEnd("drawStates");
}
function toggleBorders(event) {
if (!layerIsOn("toggleBorders")) {
turnButtonOn("toggleBorders");
drawBorders();
if (event && isCtrlClick(event)) editStyle("borders");
} else {
if (event && isCtrlClick(event)) return editStyle("borders");
turnButtonOff("toggleBorders");
borders.selectAll("path").remove();
}
}
function toggleProvinces(event) {
if (!layerIsOn("toggleProvinces")) {
turnButtonOn("toggleProvinces");
drawProvinces();
if (event && isCtrlClick(event)) editStyle("provs");
} else {
if (event && isCtrlClick(event)) return editStyle("provs");
provs.selectAll("*").remove();
turnButtonOff("toggleProvinces");
}
}
function drawProvinces() {
TIME && console.time("drawProvinces");
const {cells, provinces} = pack;
const bodyPaths = new Array(provinces.length - 1);
const isolines = getIsolines(pack, cellId => cells.province[cellId], {fill: true, waterGap: true});
Object.entries(isolines).forEach(([index, {fill, waterGap}]) => {
const color = provinces[index].color;
bodyPaths.push(getGappedFillPaths("province", fill, waterGap, color, index));
});
const labels = provinces
.filter(p => p.i && !p.removed)
.map(p => {
const [x, y] = p.pole || cells.p[p.center];
return /* html */ `<text x="${x}" y="${y}" id="provinceLabel${p.i}">${p.name}</text>`;
});
byId("provs").innerHTML = /* html */ `
<g id='provincesBody'>${bodyPaths.join("")}</g>
<g id='provinceLabels'>${labels.join("")}</g>
`;
byId("provinceLabels").style.display = byId("provs").dataset.labels === "1" ? "block" : "none";
TIME && console.timeEnd("drawProvinces");
}
function toggleGrid(event) {
if (!gridOverlay.selectAll("*").size()) {
turnButtonOn("toggleGrid");
drawGrid();
calculateFriendlyGridSize();
if (event && isCtrlClick(event)) editStyle("gridOverlay");
} else {
if (event && isCtrlClick(event)) return editStyle("gridOverlay");
turnButtonOff("toggleGrid");
gridOverlay.selectAll("*").remove();
}
}
function drawGrid() {
gridOverlay.selectAll("*").remove();
const pattern = "#pattern_" + (gridOverlay.attr("type") || "pointyHex");
const stroke = gridOverlay.attr("stroke") || "#808080";
const width = gridOverlay.attr("stroke-width") || 0.5;
const dasharray = gridOverlay.attr("stroke-dasharray") || null;
const linecap = gridOverlay.attr("stroke-linecap") || null;
const scale = gridOverlay.attr("scale") || 1;
const dx = gridOverlay.attr("dx") || 0;
const dy = gridOverlay.attr("dy") || 0;
const tr = `scale(${scale}) translate(${dx} ${dy})`;
const maxWidth = Math.max(+mapWidthInput.value, graphWidth);
const maxHeight = Math.max(+mapHeightInput.value, graphHeight);
d3.select(pattern)
.attr("stroke", stroke)
.attr("stroke-width", width)
.attr("stroke-dasharray", dasharray)
.attr("stroke-linecap", linecap)
.attr("patternTransform", tr);
gridOverlay
.append("rect")
.attr("width", maxWidth)
.attr("height", maxHeight)
.attr("fill", "url(" + pattern + ")")
.attr("stroke", "none");
}
function toggleCoordinates(event) {
if (!coordinates.selectAll("*").size()) {
turnButtonOn("toggleCoordinates");
drawCoordinates();
if (event && isCtrlClick(event)) editStyle("coordinates");
} else {
if (event && isCtrlClick(event)) return editStyle("coordinates");
turnButtonOff("toggleCoordinates");
coordinates.selectAll("*").remove();
}
}
function drawCoordinates() {
if (!layerIsOn("toggleCoordinates")) return;
coordinates.selectAll("*").remove(); // remove every time
const steps = [0.5, 1, 2, 5, 10, 15, 30]; // possible steps
const goal = mapCoordinates.lonT / scale / 10;
const step = steps.reduce((p, c) => (Math.abs(c - goal) < Math.abs(p - goal) ? c : p));
const desired = +coordinates.attr("data-size"); // desired label size
coordinates.attr("font-size", Math.max(rn(desired / scale ** 0.8, 2), 0.1)); // actual label size
const graticule = d3
.geoGraticule()
.extent([
[mapCoordinates.lonW, mapCoordinates.latN],
[mapCoordinates.lonE + 0.1, mapCoordinates.latS + 0.1]
])
.stepMajor([400, 400])
.stepMinor([step, step]);
const projection = d3.geoEquirectangular().fitSize([graphWidth, graphHeight], graticule());
const grid = coordinates.append("g").attr("id", "coordinateGrid");
const labels = coordinates.append("g").attr("id", "coordinateLabels");
const p = getViewPoint(scale + desired + 2, scale + desired / 2); // on border point on viexBox
const data = graticule.lines().map(d => {
const isLatitude = d.coordinates[0][1] === d.coordinates[1][1];
const coordinate = d.coordinates[0];
const position = projection(coordinate); // map coordinates
const [x, y] = isLatitude ? [rn(p.x, 2), rn(position[1], 2)] : [rn(position[0], 2), rn(p.y, 2)]; // labels position
const value = isLatitude ? coordinate[1] : coordinate[0]; // label
let text = "";
if (!value) {
text = value;
} else if (Number.isInteger(value)) {
if (isLatitude) {
text = coordinate[1] < 0 ? -coordinate[1] + "°S" : coordinate[1] + "°N";
} else {
text = coordinate[0] < 0 ? -coordinate[0] + "°W" : coordinate[0] + "°E";
}
}
return {x, y, text};
});
const d = round(d3.geoPath(projection)(graticule()));
grid.append("path").attr("d", d).attr("vector-effect", "non-scaling-stroke");
labels
.selectAll("text")
.data(data)
.enter()
.append("text")
.attr("x", d => d.x)
.attr("y", d => d.y)
.text(d => d.text);
}
// convert svg point into viewBox point
function getViewPoint(x, y) {
const point = new DOMPoint(x, y);
return point.matrixTransform(byId("viewbox").getScreenCTM().inverse());
}
function toggleCompass(event) {
if (!layerIsOn("toggleCompass")) {
turnButtonOn("toggleCompass");
$("#compass").fadeIn();
if (event && isCtrlClick(event)) editStyle("compass");
} else {
if (event && isCtrlClick(event)) return editStyle("compass");
$("#compass").fadeOut();
turnButtonOff("toggleCompass");
}
}
function toggleRelief(event) {
if (!layerIsOn("toggleRelief")) {
turnButtonOn("toggleRelief");
if (!terrain.selectAll("*").size()) ReliefIcons.draw();
$("#terrain").fadeIn();
if (event && isCtrlClick(event)) editStyle("terrain");
} else {
if (event && isCtrlClick(event)) return editStyle("terrain");
$("#terrain").fadeOut();
turnButtonOff("toggleRelief");
}
}
function toggleTexture(event) {
if (!layerIsOn("toggleTexture")) {
turnButtonOn("toggleTexture");
drawTexture();
if (event && isCtrlClick(event)) editStyle("texture");
} else {
if (event && isCtrlClick(event)) return editStyle("texture");
turnButtonOff("toggleTexture");
texture.select("image").remove();
}
}
function drawTexture() {
const x = Number(texture.attr("data-x") || 0);
const y = Number(texture.attr("data-y") || 0);
const href = texture.attr("data-href");
texture
.append("image")
.attr("preserveAspectRatio", "xMidYMid slice")
.attr("x", x)
.attr("y", y)
.attr("width", graphWidth - x)
.attr("height", graphHeight - y)
.attr("href", href);
}
function toggleRivers(event) {
if (!layerIsOn("toggleRivers")) {
turnButtonOn("toggleRivers");
drawRivers();
if (event && isCtrlClick(event)) editStyle("rivers");
} else {
if (event && isCtrlClick(event)) return editStyle("rivers");
rivers.selectAll("*").remove();
turnButtonOff("toggleRivers");
}
}
function drawRivers() {
TIME && console.time("drawRivers");
rivers.selectAll("*").remove();
const {addMeandering, getRiverPath} = Rivers;
lineGen.curve(d3.curveCatmullRom.alpha(0.1));
const riverPaths = pack.rivers.map(({cells, points, i, widthFactor, sourceWidth}) => {
if (!cells || cells.length < 2) return;
if (points && points.length !== cells.length) {
console.error(
`River ${i} has ${cells.length} cells, but only ${points.length} points defined. Resetting points data`
);
points = undefined;
}
const meanderedPoints = addMeandering(cells, points);
const path = getRiverPath(meanderedPoints, widthFactor, sourceWidth);
return `<path id="river${i}" d="${path}"/>`;
});
rivers.html(riverPaths.join(""));
TIME && console.timeEnd("drawRivers");
}
function toggleRoutes(event) {
if (!layerIsOn("toggleRoutes")) {
turnButtonOn("toggleRoutes");
drawRoutes();
if (event && isCtrlClick(event)) editStyle("routes");
} else {
if (event && isCtrlClick(event)) return editStyle("routes");
routes.selectAll("path").remove();
turnButtonOff("toggleRoutes");
}
}
function drawRoutes() {
TIME && console.time("drawRoutes");
const routePaths = {};
for (const route of pack.routes) {
const {i, group, points} = route;
if (!points || points.length < 2) continue;
if (!routePaths[group]) routePaths[group] = [];
routePaths[group].push(`<path id="route${i}" d="${Routes.getPath(route)}"/>`);
}
routes.selectAll("path").remove();
for (const group in routePaths) {
routes.select("#" + group).html(routePaths[group].join(""));
}
TIME && console.timeEnd("drawRoutes");
}
function toggleMilitary() {
if (!layerIsOn("toggleMilitary")) {
turnButtonOn("toggleMilitary");
$("#armies").fadeIn();
if (event && isCtrlClick(event)) editStyle("armies");
} else {
if (event && isCtrlClick(event)) {
editStyle("armies");
return;
}
$("#armies").fadeOut();
turnButtonOff("toggleMilitary");
}
}
function toggleMarkers(event) {
if (!layerIsOn("toggleMarkers")) {
turnButtonOn("toggleMarkers");
drawMarkers();
if (event && isCtrlClick(event)) editStyle("markers");
} else {
if (event && isCtrlClick(event)) return editStyle("markers");
markers.selectAll("*").remove();
turnButtonOff("toggleMarkers");
}
}
function drawMarkers() {
const rescale = +markers.attr("rescale");
const pinned = +markers.attr("pinned");
const markersData = pinned ? pack.markers.filter(({pinned}) => pinned) : pack.markers;
const html = markersData.map(marker => drawMarker(marker, rescale));
markers.html(html.join(""));
}
// prettier-ignore
const pinShapes = {
bubble: (fill, stroke) => `<path d="M6,19 l9,10 L24,19" fill="${stroke}" stroke="none" /><circle cx="15" cy="15" r="10" fill="${fill}" stroke="${stroke}"/>`,
pin: (fill, stroke) => `<path d="m 15,3 c -5.5,0 -9.7,4.09 -9.7,9.3 0,6.8 9.7,17 9.7,17 0,0 9.7,-10.2 9.7,-17 C 24.7,7.09 20.5,3 15,3 Z" fill="${fill}" stroke="${stroke}"/>`,
square: (fill, stroke) => `<path d="m 20,25 -5,4 -5,-4 z" fill="${stroke}"/><path d="M 5,5 H 25 V 25 H 5 Z" fill="${fill}" stroke="${stroke}"/>`,
squarish: (fill, stroke) => `<path d="m 5,5 h 20 v 20 h -6 l -4,4 -4,-4 H 5 Z" fill="${fill}" stroke="${stroke}" />`,
diamond: (fill, stroke) => `<path d="M 2,15 15,1 28,15 15,29 Z" fill="${fill}" stroke="${stroke}" />`,
hex: (fill, stroke) => `<path d="M 15,29 4.61,21 V 9 L 15,3 25.4,9 v 12 z" fill="${fill}" stroke="${stroke}" />`,
hexy: (fill, stroke) => `<path d="M 15,29 6,21 5,8 15,4 25,8 24,21 Z" fill="${fill}" stroke="${stroke}" />`,
shieldy: (fill, stroke) => `<path d="M 15,29 6,21 5,7 c 0,0 5,-3 10,-3 5,0 10,3 10,3 l -1,14 z" fill="${fill}" stroke="${stroke}" />`,
shield: (fill, stroke) => `<path d="M 4.6,5.2 H 25 v 6.7 A 20.3,20.4 0 0 1 15,29 20.3,20.4 0 0 1 4.6,11.9 Z" fill="${fill}" stroke="${stroke}" />`,
pentagon: (fill, stroke) => `<path d="M 4,16 9,4 h 12 l 5,12 -11,13 z" fill="${fill}" stroke="${stroke}" />`,
heptagon: (fill, stroke) => `<path d="M 15,29 6,22 4,12 10,4 h 10 l 6,8 -2,10 z" fill="${fill}" stroke="${stroke}" />`,
circle: (fill, stroke) => `<circle cx="15" cy="15" r="11" fill="${fill}" stroke="${stroke}" />`,
no: () => ""
};
const getPin = (shape = "bubble", fill = "#fff", stroke = "#000") => {
const shapeFunction = pinShapes[shape] || pinShapes.bubble;
return shapeFunction(fill, stroke);
};
function drawMarker(marker, rescale = 1) {
const {i, icon, x, y, dx = 50, dy = 50, px = 12, size = 30, pin, fill, stroke} = marker;
const id = `marker${i}`;
const zoomSize = rescale ? Math.max(rn(size / 5 + 24 / scale, 2), 1) : size;
const viewX = rn(x - zoomSize / 2, 1);
const viewY = rn(y - zoomSize, 1);
const pinHTML = getPin(pin, fill, stroke);
return `<svg id="${id}" viewbox="0 0 30 30" width="${zoomSize}" height="${zoomSize}" x="${viewX}" y="${viewY}"><g>${pinHTML}</g><text x="${dx}%" y="${dy}%" font-size="${px}px" >${icon}</text></svg>`;
}
function toggleLabels(event) {
if (!layerIsOn("toggleLabels")) {
turnButtonOn("toggleLabels");
labels.style("display", null);
invokeActiveZooming();
if (event && isCtrlClick(event)) editStyle("labels");
} else {
if (event && isCtrlClick(event)) return editStyle("labels");
turnButtonOff("toggleLabels");
labels.style("display", "none");
}
}
function toggleIcons(event) {
if (!layerIsOn("toggleIcons")) {
turnButtonOn("toggleIcons");
$("#icons").fadeIn();
if (event && isCtrlClick(event)) editStyle("burgIcons");
} else {
if (event && isCtrlClick(event)) return editStyle("burgIcons");
turnButtonOff("toggleIcons");
$("#icons").fadeOut();
}
}
function toggleRulers(event) {
if (!layerIsOn("toggleRulers")) {
turnButtonOn("toggleRulers");
if (event && isCtrlClick(event)) editStyle("ruler");
rulers.draw();
ruler.style("display", null);
} else {
if (event && isCtrlClick(event)) return editStyle("ruler");
turnButtonOff("toggleRulers");
ruler.selectAll("*").remove();
ruler.style("display", "none");
}
}
function toggleScaleBar(event) {
if (!layerIsOn("toggleScaleBar")) {
turnButtonOn("toggleScaleBar");
$("#scaleBar").fadeIn();
if (event && isCtrlClick(event)) editStyle("scaleBar");
} else {
if (event && isCtrlClick(event)) return editStyle("scaleBar");
$("#scaleBar").fadeOut();
turnButtonOff("toggleScaleBar");
}
}
function drawScaleBar(scaleBar, scaleLevel) {
if (!scaleBar.size() || scaleBar.style("display") === "none") return;
const unit = distanceUnitInput.value;
const size = +scaleBar.attr("data-bar-size");
const length = (function () {
const init = 100;
let val = (init * size * distanceScale) / scaleLevel; // bar length in distance unit
if (val > 900) val = rn(val, -3); // round to 1000
else if (val > 90) val = rn(val, -2); // round to 100
else if (val > 9) val = rn(val, -1); // round to 10
else val = rn(val); // round to 1
const length = (val * scaleLevel) / distanceScale; // actual length in pixels on this scale
return length;
})();
scaleBar.select("#scaleBarContent").remove(); // redraw content every time
const content = scaleBar.append("g").attr("id", "scaleBarContent");
const lines = content.append("g");
lines
.append("line")
.attr("x1", 0.5)
.attr("y1", 0)
.attr("x2", length + size - 0.5)
.attr("y2", 0)
.attr("stroke-width", size)
.attr("stroke", "white");
lines
.append("line")
.attr("x1", 0)
.attr("y1", size)
.attr("x2", length + size)
.attr("y2", size)
.attr("stroke-width", size)
.attr("stroke", "#3d3d3d");
lines
.append("line")
.attr("x1", 0)
.attr("y1", 0)
.attr("x2", length + size)
.attr("y2", 0)
.attr("stroke-width", rn(size * 3, 2))
.attr("stroke-dasharray", size + " " + rn(length / 5 - size, 2))
.attr("stroke", "#3d3d3d");
const texts = content.append("g").attr("text-anchor", "middle").attr("font-family", "var(--serif)");
texts
.selectAll("text")
.data(d3.range(0, 6))
.enter()
.append("text")
.attr("x", d => rn((d * length) / 5, 2))
.attr("y", 0)
.attr("dy", "-.6em")
.text(d => rn((((d * length) / 5) * distanceScale) / scaleLevel) + (d < 5 ? "" : " " + unit));
const label = scaleBar.attr("data-label");
if (label) {
texts
.append("text")
.attr("x", (length + 1) / 2)
.attr("dy", ".6em")
.attr("dominant-baseline", "text-before-edge")
.text(label);
}
const scaleBarBack = scaleBar.select("#scaleBarBack");
if (scaleBarBack.size()) {
const bbox = content.node().getBBox();
const paddingTop = +scaleBarBack.attr("data-top") || 0;
const paddingLeft = +scaleBarBack.attr("data-left") || 0;
const paddingRight = +scaleBarBack.attr("data-right") || 0;
const paddingBottom = +scaleBarBack.attr("data-bottom") || 0;
scaleBar
.select("#scaleBarBack")
.attr("x", -paddingLeft)
.attr("y", -paddingTop)
.attr("width", bbox.width + paddingRight)
.attr("height", bbox.height + paddingBottom);
}
}
// fit ScaleBar to screen size
function fitScaleBar(scaleBar, fullWidth, fullHeight) {
if (!scaleBar.select("rect").size() || scaleBar.style("display") === "none") return;
const posX = +scaleBar.attr("data-x") || 99;
const posY = +scaleBar.attr("data-y") || 99;
const bbox = scaleBar.select("rect").node().getBBox();
const x = rn((fullWidth * posX) / 100 - bbox.width + 10);
const y = rn((fullHeight * posY) / 100 - bbox.height + 20);
scaleBar.attr("transform", `translate(${x},${y})`);
}
function toggleZones(event) {
if (!layerIsOn("toggleZones")) {
turnButtonOn("toggleZones");
drawZones();
if (event && isCtrlClick(event)) editStyle("zones");
} else {
if (event && isCtrlClick(event)) return editStyle("zones");
turnButtonOff("toggleZones");
zones.selectAll("*").remove();
}
}
function drawZones() {
const filterBy = byId("zonesFilterType").value;
const isFiltered = filterBy && filterBy !== "all";
const visibleZones = pack.zones.filter(
({hidden, cells, type}) => !hidden && cells.length && (!isFiltered || type === filterBy)
);
zones.html(visibleZones.map(drawZone).join(""));
}
function drawZone({i, cells, type, color}) {
const path = getVertexPath(cells);
return `<path id="zone${i}" data-id="${i}" data-type="${type}" d="${path}" fill="${color}" />`;
}
function toggleEmblems(event) {
if (!layerIsOn("toggleEmblems")) {
turnButtonOn("toggleEmblems");
if (!emblems.selectAll("use").size()) drawEmblems();
$("#emblems").fadeIn();
if (event && isCtrlClick(event)) editStyle("emblems");
} else {
if (event && isCtrlClick(event)) return editStyle("emblems");
$("#emblems").fadeOut();
turnButtonOff("toggleEmblems");
}
}
function drawEmblems() {
TIME && console.time("drawEmblems");
const {states, provinces, burgs} = pack;
const validStates = states.filter(s => s.i && !s.removed && s.coa && s.coa.size !== 0);
const validProvinces = provinces.filter(p => p.i && !p.removed && p.coa && p.coa.size !== 0);
const validBurgs = burgs.filter(b => b.i && !b.removed && b.coa && b.coa.size !== 0);
const getStateEmblemsSize = () => {
const startSize = minmax((graphHeight + graphWidth) / 40, 10, 100);
const statesMod = 1 + validStates.length / 100 - (15 - validStates.length) / 200; // states number modifier
const sizeMod = +emblems.select("#stateEmblems").attr("data-size") || 1;
return rn((startSize / statesMod) * sizeMod); // target size ~50px on 1536x754 map with 15 states
};
const getProvinceEmblemsSize = () => {
const startSize = minmax((graphHeight + graphWidth) / 100, 5, 70);
const provincesMod = 1 + validProvinces.length / 1000 - (115 - validProvinces.length) / 1000; // states number modifier
const sizeMod = +emblems.select("#provinceEmblems").attr("data-size") || 1;
return rn((startSize / provincesMod) * sizeMod); // target size ~20px on 1536x754 map with 115 provinces
};
const getBurgEmblemSize = () => {
const startSize = minmax((graphHeight + graphWidth) / 185, 2, 50);
const burgsMod = 1 + validBurgs.length / 1000 - (450 - validBurgs.length) / 1000; // states number modifier
const sizeMod = +emblems.select("#burgEmblems").attr("data-size") || 1;
return rn((startSize / burgsMod) * sizeMod); // target size ~8.5px on 1536x754 map with 450 burgs
};
const sizeBurgs = getBurgEmblemSize();
const burgCOAs = validBurgs.map(burg => {
const {x, y} = burg;
const size = burg.coa.size || 1;
const shift = (sizeBurgs * size) / 2;
return {type: "burg", i: burg.i, x: burg.coa.x || x, y: burg.coa.y || y, size, shift};
});
const sizeProvinces = getProvinceEmblemsSize();
const provinceCOAs = validProvinces.map(province => {
const [x, y] = province.pole || pack.cells.p[province.center];
const size = province.coa.size || 1;
const shift = (sizeProvinces * size) / 2;
return {type: "province", i: province.i, x: province.coa.x || x, y: province.coa.y || y, size, shift};
});
const sizeStates = getStateEmblemsSize();
const stateCOAs = validStates.map(state => {
const [x, y] = state.pole || pack.cells.p[state.center];
const size = state.coa.size || 1;
const shift = (sizeStates * size) / 2;
return {type: "state", i: state.i, x: state.coa.x || x, y: state.coa.y || y, size, shift};
});
const nodes = burgCOAs.concat(provinceCOAs).concat(stateCOAs);
const simulation = d3
.forceSimulation(nodes)
.alphaMin(0.6)
.alphaDecay(0.2)
.velocityDecay(0.6)
.force(
"collision",
d3.forceCollide().radius(d => d.shift)
)
.stop();
d3.timeout(function () {
const n = Math.ceil(Math.log(simulation.alphaMin()) / Math.log(1 - simulation.alphaDecay()));
for (let i = 0; i < n; ++i) {
simulation.tick();
}
const burgNodes = nodes.filter(node => node.type === "burg");
const burgString = burgNodes
.map(
d =>
`<use data-i="${d.i}" x="${rn(d.x - d.shift)}" y="${rn(d.y - d.shift)}" width="${d.size}em" height="${
d.size
}em"/>`
)
.join("");
emblems.select("#burgEmblems").attr("font-size", sizeBurgs).html(burgString);
const provinceNodes = nodes.filter(node => node.type === "province");
const provinceString = provinceNodes
.map(
d =>
`<use data-i="${d.i}" x="${rn(d.x - d.shift)}" y="${rn(d.y - d.shift)}" width="${d.size}em" height="${
d.size
}em"/>`
)
.join("");
emblems.select("#provinceEmblems").attr("font-size", sizeProvinces).html(provinceString);
const stateNodes = nodes.filter(node => node.type === "state");
const stateString = stateNodes
.map(
d =>
`<use data-i="${d.i}" x="${rn(d.x - d.shift)}" y="${rn(d.y - d.shift)}" width="${d.size}em" height="${
d.size
}em"/>`
)
.join("");
emblems.select("#stateEmblems").attr("font-size", sizeStates).html(stateString);
invokeActiveZooming();
});
TIME && console.timeEnd("drawEmblems");
}
function toggleVignette(event) {
if (!layerIsOn("toggleVignette")) {
turnButtonOn("toggleVignette");
$("#vignette").fadeIn();
if (event && isCtrlClick(event)) editStyle("vignette");
} else {
if (event && isCtrlClick(event)) return editStyle("vignette");
$("#vignette").fadeOut();
turnButtonOff("toggleVignette");
}
}
function getGappedFillPaths(elementName, fill, waterGap, color, index) {
return /* html */ `
<path d="${fill}" fill="${color}" id="${elementName}${index}" />
<path d="${waterGap}" fill="none" stroke="${color}" stroke-width="3" id="${elementName}-gap${index}" />
`;
}
function layerIsOn(el) {
const buttonoff = byId(el).classList.contains("buttonoff");
return !buttonoff;
}
function turnButtonOff(el) {
byId(el).classList.add("buttonoff");
getCurrentPreset();
}
function turnButtonOn(el) {
byId(el).classList.remove("buttonoff");
getCurrentPreset();
}
// move layers on mapLayers dragging (jquery sortable)
$("#mapLayers").sortable({items: "li:not(.solid)", containment: "parent", cancel: ".solid", update: moveLayer});
function moveLayer(event, ui) {
const el = getLayer(ui.item.attr("id"));
if (!el) return;
const prev = getLayer(ui.item.prev().attr("id"));
const next = getLayer(ui.item.next().attr("id"));
if (prev) el.insertAfter(prev);
else if (next) el.insertBefore(next);
}
// define connection between option layer buttons and actual svg groups to move the element
function getLayer(id) {
if (id === "toggleHeight") return $("#terrs");
if (id === "toggleBiomes") return $("#biomes");
if (id === "toggleCells") return $("#cells");
if (id === "toggleGrid") return $("#gridOverlay");
if (id === "toggleCoordinates") return $("#coordinates");
if (id === "toggleCompass") return $("#compass");
if (id === "toggleRivers") return $("#rivers");
if (id === "toggleRelief") return $("#terrain");
if (id === "toggleReligions") return $("#relig");
if (id === "toggleCultures") return $("#cults");
if (id === "toggleStates") return $("#regions");
if (id === "toggleProvinces") return $("#provs");
if (id === "toggleBorders") return $("#borders");
if (id === "toggleRoutes") return $("#routes");
if (id === "toggleTemp") return $("#temperature");
if (id === "togglePrec") return $("#prec");
if (id === "togglePopulation") return $("#population");
if (id === "toggleIce") return $("#ice");
if (id === "toggleTexture") return $("#texture");
if (id === "toggleEmblems") return $("#emblems");
if (id === "toggleLabels") return $("#labels");
if (id === "toggleIcons") return $("#icons");
if (id === "toggleMarkers") return $("#markers");
if (id === "toggleRulers") return $("#ruler");
}