mirror of
https://github.com/Azgaar/Fantasy-Map-Generator.git
synced 2025-12-17 09:41:24 +01:00
634 lines
17 KiB
JavaScript
634 lines
17 KiB
JavaScript
class Rulers {
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constructor() {
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this.data = [];
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}
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create(Type, points) {
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const ruler = new Type(points);
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this.data.push(ruler);
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return ruler;
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}
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toString() {
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return this.data.map(ruler => ruler.toString()).join("; ");
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}
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fromString(string) {
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this.data = [];
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const rulers = string.split("; ");
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for (const rulerString of rulers) {
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const [type, pointsString] = rulerString.split(": ");
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const points = pointsString.split(" ").map(el => el.split(",").map(n => +n));
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const Type =
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type === "Ruler"
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? Ruler
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: type === "Opisometer"
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? Opisometer
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: type === "RouteOpisometer"
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? RouteOpisometer
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: type === "Planimeter"
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? Planimeter
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: null;
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this.create(Type, points);
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}
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}
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draw() {
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this.data.forEach(ruler => ruler.draw());
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}
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undraw() {
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this.data.forEach(ruler => ruler.undraw());
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}
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remove(id) {
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if (id === undefined) return;
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const ruler = this.data.find(ruler => ruler.id === id);
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ruler.undraw();
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const rulerIndex = this.data.indexOf(ruler);
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rulers.data.splice(rulerIndex, 1);
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}
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}
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class Measurer {
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constructor(points) {
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this.points = points;
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this.id = rulers.data.length;
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}
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toString() {
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return this.constructor.name + ": " + this.points.join(" ");
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}
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getSize() {
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return rn((1 / scale ** 0.3) * 2, 2);
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}
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getDash() {
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return rn(30 / distanceScaleInput.value, 2);
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}
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drag() {
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const tr = parseTransform(this.getAttribute("transform"));
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const x = +tr[0] - d3.event.x,
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y = +tr[1] - d3.event.y;
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d3.event.on("drag", function () {
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const transform = `translate(${x + d3.event.x},${y + d3.event.y})`;
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this.setAttribute("transform", transform);
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});
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}
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addPoint(point) {
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const MIN_DIST = d3.event.sourceEvent.shiftKey ? 9 : 100;
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const prev = last(this.points);
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point = [point[0] | 0, point[1] | 0];
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const dist2 = (prev[0] - point[0]) ** 2 + (prev[1] - point[1]) ** 2;
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if (dist2 < MIN_DIST) return;
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this.points.push(point);
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this.updateCurve();
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this.updateLabel();
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}
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optimize() {
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const MIN_DIST2 = 900;
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const optimized = [];
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for (let i = 0, p1 = this.points[0]; i < this.points.length; i++) {
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const p2 = this.points[i];
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const dist2 = !i || i === this.points.length - 1 ? Infinity : (p2[0] - p1[0]) ** 2 + (p2[1] - p1[1]) ** 2;
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if (dist2 < MIN_DIST2) continue;
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optimized.push(p2);
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p1 = p2;
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}
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this.points = optimized;
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this.updateCurve();
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this.updateLabel();
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}
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undraw() {
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this.el?.remove();
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}
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}
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class Ruler extends Measurer {
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constructor(points) {
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super(points);
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}
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getPointsString() {
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return this.points.join(" ");
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}
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updatePoint(index, x, y) {
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this.points[index] = [x, y];
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}
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getPointId(x, y) {
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return this.points.findIndex(el => el[0] == x && el[1] == y);
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}
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pushPoint(i) {
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const [x, y] = this.points[i];
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i ? this.points.push([x, y]) : this.points.unshift([x, y]);
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}
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draw() {
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if (this.el) this.el.selectAll("*").remove();
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const points = this.getPointsString();
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const size = this.getSize();
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const dash = this.getDash();
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const el = (this.el = ruler
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.append("g")
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.attr("class", "ruler")
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.call(d3.drag().on("start", this.drag))
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.attr("font-size", 10 * size));
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el.append("polyline")
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.attr("points", points)
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.attr("class", "white")
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.attr("stroke-width", size)
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.call(d3.drag().on("start", () => this.addControl(this)));
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el.append("polyline")
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.attr("points", points)
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.attr("class", "gray")
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.attr("stroke-width", rn(size * 1.2, 2))
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.attr("stroke-dasharray", dash);
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el.append("g")
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.attr("class", "rulerPoints")
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.attr("stroke-width", 0.5 * size)
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.attr("font-size", 2 * size);
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el.append("text")
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.attr("dx", ".35em")
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.attr("dy", "-.45em")
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.on("click", () => rulers.remove(this.id));
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this.drawPoints(el);
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this.updateLabel();
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return this;
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}
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drawPoints(el) {
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const g = el.select(".rulerPoints");
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g.selectAll("circle").remove();
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for (let i = 0; i < this.points.length; i++) {
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const [x, y] = this.points[i];
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this.drawPoint(g, x, y, i);
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}
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}
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drawPoint(el, x, y, i) {
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const context = this;
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el.append("circle")
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.attr("r", "1em")
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.attr("cx", x)
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.attr("cy", y)
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.attr("class", this.isEdge(i) ? "edge" : "control")
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.on("click", function () {
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context.removePoint(context, i);
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})
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.call(
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d3
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.drag()
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.clickDistance(3)
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.on("start", function () {
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context.dragControl(context, i);
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})
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);
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}
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isEdge(i) {
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return i === 0 || i === this.points.length - 1;
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}
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updateLabel() {
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const length = this.getLength();
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const text = rn(length * distanceScaleInput.value) + " " + distanceUnitInput.value;
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const [x, y] = last(this.points);
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this.el.select("text").attr("x", x).attr("y", y).text(text);
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}
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getLength() {
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let length = 0;
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for (let i = 0; i < this.points.length - 1; i++) {
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const [x1, y1] = this.points[i];
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const [x2, y2] = this.points[i + 1];
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length += Math.hypot(x1 - x2, y1 - y2);
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}
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return length;
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}
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dragControl(context, pointId) {
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let addPoint = context.isEdge(pointId) && d3.event.sourceEvent.ctrlKey;
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let circle = context.el.select(`circle:nth-child(${pointId + 1})`);
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const line = context.el.selectAll("polyline");
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let x0 = rn(d3.event.x, 1);
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let y0 = rn(d3.event.y, 1);
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let axis;
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d3.event.on("drag", function () {
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if (addPoint) {
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if (d3.event.dx < 0.1 && d3.event.dy < 0.1) return;
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context.pushPoint(pointId);
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context.drawPoints(context.el);
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if (pointId) pointId++;
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circle = context.el.select(`circle:nth-child(${pointId + 1})`);
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addPoint = false;
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}
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const shiftPressed = d3.event.sourceEvent.shiftKey;
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if (shiftPressed && !axis) axis = Math.abs(d3.event.dx) > Math.abs(d3.event.dy) ? "x" : "y";
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const x = axis === "y" ? x0 : rn(d3.event.x, 1);
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const y = axis === "x" ? y0 : rn(d3.event.y, 1);
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if (!shiftPressed) {
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axis = null;
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x0 = x;
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y0 = y;
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}
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context.updatePoint(pointId, x, y);
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line.attr("points", context.getPointsString());
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circle.attr("cx", x).attr("cy", y);
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context.updateLabel();
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});
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}
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addControl(context) {
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const x = rn(d3.event.x, 1);
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const y = rn(d3.event.y, 1);
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const pointId = getSegmentId(context.points, [x, y]);
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context.points.splice(pointId, 0, [x, y]);
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context.drawPoints(context.el);
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context.dragControl(context, pointId);
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}
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removePoint(context, pointId) {
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if (this.points.length < 3) return;
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this.points.splice(pointId, 1);
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context.draw();
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}
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}
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class Opisometer extends Measurer {
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constructor(points) {
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super(points);
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}
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draw() {
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if (this.el) this.el.selectAll("*").remove();
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const size = this.getSize();
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const dash = this.getDash();
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const context = this;
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const el = (this.el = ruler
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.append("g")
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.attr("class", "opisometer")
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.call(d3.drag().on("start", this.drag))
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.attr("font-size", 10 * size));
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el.append("path").attr("class", "white").attr("stroke-width", size);
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el.append("path").attr("class", "gray").attr("stroke-width", size).attr("stroke-dasharray", dash);
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const rulerPoints = el
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.append("g")
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.attr("class", "rulerPoints")
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.attr("stroke-width", 0.5 * size)
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.attr("font-size", 2 * size);
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rulerPoints
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.append("circle")
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.attr("r", "1em")
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.call(
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d3.drag().on("start", function () {
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context.dragControl(context, 0);
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})
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);
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rulerPoints
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.append("circle")
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.attr("r", "1em")
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.call(
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d3.drag().on("start", function () {
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context.dragControl(context, 1);
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})
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);
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el.append("text")
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.attr("dx", ".35em")
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.attr("dy", "-.45em")
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.on("click", () => rulers.remove(this.id));
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this.updateCurve();
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this.updateLabel();
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return this;
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}
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updateCurve() {
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lineGen.curve(d3.curveCatmullRom.alpha(0.5));
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const path = round(lineGen(this.points));
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this.el.selectAll("path").attr("d", path);
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const left = this.points[0];
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const right = last(this.points);
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this.el.select(".rulerPoints > circle:first-child").attr("cx", left[0]).attr("cy", left[1]);
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this.el.select(".rulerPoints > circle:last-child").attr("cx", right[0]).attr("cy", right[1]);
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}
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updateLabel() {
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const length = this.el.select("path").node().getTotalLength();
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const text = rn(length * distanceScaleInput.value) + " " + distanceUnitInput.value;
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const [x, y] = last(this.points);
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this.el.select("text").attr("x", x).attr("y", y).text(text);
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}
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dragControl(context, rigth) {
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const MIN_DIST = d3.event.sourceEvent.shiftKey ? 9 : 100;
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let prev = rigth ? last(context.points) : context.points[0];
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d3.event.on("drag", function () {
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const point = [d3.event.x | 0, d3.event.y | 0];
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const dist2 = (prev[0] - point[0]) ** 2 + (prev[1] - point[1]) ** 2;
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if (dist2 < MIN_DIST) return;
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rigth ? context.points.push(point) : context.points.unshift(point);
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prev = point;
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context.updateCurve();
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context.updateLabel();
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});
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d3.event.on("end", function () {
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if (!d3.event.sourceEvent.shiftKey) context.optimize();
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});
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}
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}
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class RouteOpisometer extends Measurer {
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constructor(points) {
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super(points);
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if (pack.cells) {
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this.cellStops = points.map(p => findCell(p[0], p[1]));
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} else {
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this.cellStops = null;
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}
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}
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checkCellStops() {
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if (!this.cellStops) {
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this.cellStops = this.points.map(p => findCell(p[0], p[1]));
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}
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}
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trackCell(cell, rigth) {
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this.checkCellStops();
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const cellStops = this.cellStops;
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const foundIndex = cellStops.indexOf(cell);
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if (rigth) {
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if (last(cellStops) === cell) {
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return;
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} else if (cellStops.length > 1 && foundIndex != -1) {
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cellStops.splice(foundIndex + 1);
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this.points.splice(foundIndex + 1);
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} else {
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cellStops.push(cell);
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this.points.push(this.getCellRouteCoord(cell));
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}
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} else {
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if (cellStops[0] === cell) {
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return;
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} else if (cellStops.length > 1 && foundIndex != -1) {
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cellStops.splice(0, foundIndex);
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this.points.splice(0, foundIndex);
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} else {
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cellStops.unshift(cell);
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this.points.unshift(this.getCellRouteCoord(cell));
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}
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}
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this.updateCurve();
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this.updateLabel();
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}
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getCellRouteCoord(c) {
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const cells = pack.cells;
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const burgs = pack.burgs;
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const b = cells.burg[c];
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const x = b ? burgs[b].x : cells.p[c][0];
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const y = b ? burgs[b].y : cells.p[c][1];
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return [x, y];
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}
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draw() {
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if (this.el) this.el.selectAll("*").remove();
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const size = this.getSize();
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const dash = this.getDash();
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const context = this;
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const el = (this.el = ruler
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.append("g")
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.attr("class", "opisometer")
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.attr("font-size", 10 * size));
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el.append("path").attr("class", "white").attr("stroke-width", size);
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el.append("path").attr("class", "gray").attr("stroke-width", size).attr("stroke-dasharray", dash);
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const rulerPoints = el
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.append("g")
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.attr("class", "rulerPoints")
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.attr("stroke-width", 0.5 * size)
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.attr("font-size", 2 * size);
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rulerPoints
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.append("circle")
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.attr("r", "1em")
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.call(
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d3.drag().on("start", function () {
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context.dragControl(context, 0);
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})
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);
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rulerPoints
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.append("circle")
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.attr("r", "1em")
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.call(
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d3.drag().on("start", function () {
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context.dragControl(context, 1);
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})
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);
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el.append("text")
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.attr("dx", ".35em")
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.attr("dy", "-.45em")
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.on("click", () => rulers.remove(this.id));
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this.updateCurve();
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this.updateLabel();
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return this;
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}
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updateCurve() {
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lineGen.curve(d3.curveCatmullRom.alpha(0.5));
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const path = round(lineGen(this.points));
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this.el.selectAll("path").attr("d", path);
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const left = this.points[0];
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const right = last(this.points);
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this.el.select(".rulerPoints > circle:first-child").attr("cx", left[0]).attr("cy", left[1]);
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this.el.select(".rulerPoints > circle:last-child").attr("cx", right[0]).attr("cy", right[1]);
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}
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updateLabel() {
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const length = this.el.select("path").node().getTotalLength();
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const text = rn(length * distanceScaleInput.value) + " " + distanceUnitInput.value;
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const [x, y] = last(this.points);
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this.el.select("text").attr("x", x).attr("y", y).text(text);
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}
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dragControl(context, rigth) {
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d3.event.on("drag", function () {
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const mousePoint = [d3.event.x | 0, d3.event.y | 0];
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const cells = pack.cells;
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const c = findCell(mousePoint[0], mousePoint[1]);
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if (!cells.road[c] && !d3.event.sourceEvent.shiftKey) {
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return;
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}
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context.trackCell(c, rigth);
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});
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}
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}
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class Planimeter extends Measurer {
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constructor(points) {
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super(points);
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}
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draw() {
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if (this.el) this.el.selectAll("*").remove();
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const size = this.getSize();
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const el = (this.el = ruler
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.append("g")
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.attr("class", "planimeter")
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.call(d3.drag().on("start", this.drag))
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.attr("font-size", 10 * size));
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el.append("path").attr("class", "planimeter").attr("stroke-width", size);
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el.append("text").on("click", () => rulers.remove(this.id));
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this.updateCurve();
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this.updateLabel();
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return this;
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}
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updateCurve() {
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lineGen.curve(d3.curveCatmullRomClosed.alpha(0.5));
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const path = round(lineGen(this.points));
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this.el.selectAll("path").attr("d", path);
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|
}
|
|
|
|
updateLabel() {
|
|
if (this.points.length < 3) return;
|
|
|
|
const polygonArea = rn(Math.abs(d3.polygonArea(this.points)));
|
|
const unit = areaUnit.value === "square" ? " " + distanceUnitInput.value + "²" : " " + areaUnit.value;
|
|
const area = si(polygonArea * distanceScaleInput.value ** 2) + " " + unit;
|
|
const c = polylabel([this.points], 1.0);
|
|
this.el.select("text").attr("x", c[0]).attr("y", c[1]).text(area);
|
|
}
|
|
}
|
|
|
|
// Scale bar
|
|
function drawScaleBar(scaleLevel = scale) {
|
|
if (scaleBar.style("display") === "none") return; // no need to re-draw hidden element
|
|
scaleBar.selectAll("*").remove(); // fully redraw every time
|
|
|
|
const distanceScale = distanceScaleInput.value;
|
|
const unit = distanceUnitInput.value;
|
|
const size = +barSizeInput.value;
|
|
|
|
// calculate size
|
|
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
|
|
|
|
scaleBar
|
|
.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");
|
|
scaleBar
|
|
.append("line")
|
|
.attr("x1", 0)
|
|
.attr("y1", size)
|
|
.attr("x2", length + size)
|
|
.attr("y2", size)
|
|
.attr("stroke-width", size)
|
|
.attr("stroke", "#3d3d3d");
|
|
const dash = size + " " + rn(length / 5 - size, 2);
|
|
scaleBar
|
|
.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", dash)
|
|
.attr("stroke", "#3d3d3d");
|
|
|
|
const fontSize = rn(5 * size, 1);
|
|
scaleBar
|
|
.selectAll("text")
|
|
.data(d3.range(0, 6))
|
|
.enter()
|
|
.append("text")
|
|
.attr("x", d => rn((d * length) / 5, 2))
|
|
.attr("y", 0)
|
|
.attr("dy", "-.5em")
|
|
.attr("font-size", fontSize)
|
|
.text(d => rn((((d * length) / 5) * distanceScale) / scaleLevel) + (d < 5 ? "" : " " + unit));
|
|
|
|
if (barLabel.value !== "") {
|
|
scaleBar
|
|
.append("text")
|
|
.attr("x", (length + 1) / 2)
|
|
.attr("y", 2 * size)
|
|
.attr("dominant-baseline", "text-before-edge")
|
|
.attr("font-size", fontSize)
|
|
.text(barLabel.value);
|
|
}
|
|
|
|
const bbox = scaleBar.node().getBBox();
|
|
// append backbround rectangle
|
|
scaleBar
|
|
.insert("rect", ":first-child")
|
|
.attr("x", -10)
|
|
.attr("y", -20)
|
|
.attr("width", bbox.width + 10)
|
|
.attr("height", bbox.height + 15)
|
|
.attr("stroke-width", size)
|
|
.attr("stroke", "none")
|
|
.attr("filter", "url(#blur5)")
|
|
.attr("fill", barBackColor.value)
|
|
.attr("opacity", +barBackOpacity.value);
|
|
|
|
fitScaleBar();
|
|
}
|
|
|
|
// fit ScaleBar to canvas size
|
|
function fitScaleBar() {
|
|
if (!scaleBar.select("rect").size() || scaleBar.style("display") === "none") return;
|
|
const px = isNaN(+barPosX.value) ? 0.99 : barPosX.value / 100;
|
|
const py = isNaN(+barPosY.value) ? 0.99 : barPosY.value / 100;
|
|
const bbox = scaleBar.select("rect").node().getBBox();
|
|
const x = rn(svgWidth * px - bbox.width + 10),
|
|
y = rn(svgHeight * py - bbox.height + 20);
|
|
scaleBar.attr("transform", `translate(${x},${y})`);
|
|
}
|