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v1.6.01 - properly track cells.r and check it on load

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Azgaar 2021-03-03 03:30:43 +03:00
parent e4718a0844
commit 667006db86
3 changed files with 31 additions and 19 deletions
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40
modules/river-generator.js
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@ -160,31 +160,35 @@ const generate = function(changeHeights = true) {
}
function defineRivers() {
cells.r = new Uint16Array(cells.i.length); // re-initiate rivers array
pack.rivers = []; // rivers data
const riverPaths = [];
for (let r = 1; r <= riverNext; r++) {
const riverSegments = riversData.filter(d => d.river === r);
if (riverSegments.length < 3) continue;
if (riverSegments.length > 2) {
const source = riverSegments[0].cell;
const mouth = riverSegments[riverSegments.length-2].cell;
const widthFactor = rn(.8 + Math.random() * .4, 1); // river width modifier [.8, 1.2]
const sourceWidth = cells.h[source] >= 20 ? .1 : rn(Math.min(Math.max((cells.fl[source] / 500) ** .4, .5), 1.7), 2);
const riverMeandered = addMeandering(riverSegments, sourceWidth * 10, .5);
const [path, length, offset] = getPath(riverMeandered, widthFactor, sourceWidth);
riverPaths.push([path, r]);
const parent = riverSegments[0].parent || 0;
const width = rn(offset ** 2, 2); // mounth width in km
const discharge = last(riverSegments).flux; // in m3/s
pack.rivers.push({i:r, source, mouth, discharge, length, width, widthFactor, sourceWidth, parent});
} else {
// remove too short rivers
riverSegments.filter(s => cells.r[s.cell] === r).forEach(s => cells.r[s.cell] = 0);
for (const segment of riverSegments) {
const i = segment.cell;
if (cells.r[i]) continue;
if (cells.h[i] < 20) continue;
cells.r[i] = r;
}
const source = riverSegments[0].cell;
const mouth = riverSegments[riverSegments.length-2].cell;
const widthFactor = rn(.8 + Math.random() * .4, 1); // river width modifier [.8, 1.2]
const sourceWidth = cells.h[source] >= 20 ? .1 : rn(Math.min(Math.max((cells.fl[source] / 500) ** .4, .5), 1.7), 2);
const riverMeandered = addMeandering(riverSegments, sourceWidth * 10, .5);
const [path, length, offset] = getPath(riverMeandered, widthFactor, sourceWidth);
riverPaths.push([path, r]);
const parent = riverSegments[0].parent || 0;
const width = rn(offset ** 2, 2); // mounth width in km
const discharge = last(riverSegments).flux; // in m3/s
pack.rivers.push({i:r, source, mouth, discharge, length, width, widthFactor, sourceWidth, parent});
}
// draw rivers