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refactor: migrate resample module (#1351)

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* refactor: resampling functionality

* fix: type issues

* fix: reorder polyfills import in index.ts

* refactor: reorder exports in index.ts for consistency
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Marc Emmanuel 2026-03-18 17:51:53 +01:00 • committed by GitHub
parent 3f9a7702d4
commit f2fc42799b
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20 changed files with 601 additions and 417 deletions
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10
src/modules/river-generator.ts
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@ -1,6 +1,7 @@
import Alea from "alea";
import { curveBasis, curveCatmullRom, line, mean, min, sum } from "d3";
import { each, rn, round, rw } from "../utils";
import type { Point } from "./voronoi";
declare global {
var Rivers: RiverModule;
@ -20,6 +21,7 @@ export interface River {
name: string; // river name
type: string; // river type
cells: number[]; // cells forming the river path
points?: Point[]; // river points (for meandering)
}
class RiverModule {
@ -237,7 +239,9 @@ class RiverModule {
: defaultWidthFactor;
const meanderedPoints = this.addMeandering(riverCells);
const discharge = cells.fl[mouth]; // m3 in second
const length = this.getApproximateLength(meanderedPoints);
const length = this.getApproximateLength(
meanderedPoints.map(([x, y]) => [x, y]),
);
const sourceWidth = this.getSourceWidth(cells.fl[source]);
const width = this.getWidth(
this.getOffset({
@ -411,7 +415,7 @@ class RiverModule {
addMeandering(
riverCells: number[],
riverPoints = null,
riverPoints: Point[] | null = null,
meandering = 0.5,
): [number, number, number][] {
const { fl, h } = pack.cells;
@ -579,7 +583,7 @@ class RiverModule {
);
}
getApproximateLength(points: [number, number, number][]) {
getApproximateLength(points: Point[] = []) {
const length = points.reduce(
(s, v, i, p) =>
s + (i ? Math.hypot(v[0] - p[i - 1][0], v[1] - p[i - 1][1]) : 0),