backups/Fantasy-Map-Generator
1
0
Fork 0
mirror of https://github.com/Azgaar/Fantasy-Map-Generator.git synced 2025-12-17 01:41:22 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

delete rendered rivers on layer off

Browse source
This commit is contained in:
Azgaar 2021-07-23 23:46:00 +03:00
parent d5b2e7ed14
commit d9d349f3a1
3 changed files with 30 additions and 21 deletions
Download patch file Download diff file Expand all files Collapse all files

16
modules/river-generator.js
View file

@ -170,14 +170,13 @@
const parent = riverParents[key] || 0;
const widthFactor = !parent || parent === riverId ? 1.2 : 1;
const initStep = cells.h[source] >= 20 ? 1 : 10;
const riverMeandered = addMeandering(riverCells, initStep);
const riverMeandered = addMeandering(riverCells);
const [path, length, offset] = getRiverPath(riverMeandered, widthFactor);
riverPaths.push([path, riverId]);
// Real mouth width examples: Amazon 6000m, Volga 6000m, Dniepr 3000m, Mississippi 1300m, Themes 900m,
// Danube 800m, Daugava 600m, Neva 500m, Nile 450m, Don 400m, Wisla 300m, Pripyat 150m, Bug 140m, Muchavets 40m
const width = rn((offset / 1.4) ** 2, 2); // mouth width in km
const width = rn((offset / 1.5) ** 1.8, 2); // mouth width in km
const discharge = cells.fl[mouth]; // m3 in second
pack.rivers.push({i: riverId, source, mouth, discharge, length, width, widthFactor, sourceWidth: 0, parent, cells: riverCells});
@ -269,11 +268,12 @@
};
// add points at 1/3 and 2/3 of a line between adjacents river cells
const addMeandering = function (riverCells, step = 1, meandering = 0.5, riverPoints = null) {
const {fl, conf} = pack.cells;
const addMeandering = function (riverCells, meandering = 0.5, riverPoints = null) {
const {fl, conf, h} = pack.cells;
const meandered = [];
const lastStep = riverCells.length - 1;
const points = getRiverPoints(riverCells, riverPoints);
let step = h[riverCells[0]] < 20 ? 1 : 10;
let fluxPrev = 0;
const getFlux = (step, flux) => (step === lastStep ? fluxPrev : flux);
@ -348,9 +348,9 @@
const fluxFactor = 500;
const maxFluxWidth = 2;
const widthFactor = 200;
const stepWidth = 1 / widthFactor;
const lengthProgression = [1, 1, 2, 3, 5, 8, 13, 21, 34].map(n => n / widthFactor);
const lengthFactor = 200;
const stepWidth = 1 / lengthFactor;
const lengthProgression = [1, 1, 2, 3, 5, 8, 13, 21, 34].map(n => n / lengthFactor);
const maxProgression = last(lengthProgression);
// build polygon from a list of points and calculated offset (width)