backups/Fantasy-Map-Generator
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v 0.8.32b

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Azgaar 2019-06-07 21:27:55 +03:00
parent 83585c3081
commit dd83a8c0a0
4 changed files with 87 additions and 14 deletions
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12
modules/river-generator.js
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@ -112,24 +112,30 @@
}
// depression filling algorithm (for a correct water flux modeling)
function resolveDepressions() {
const resolveDepressions = function() {
console.time('resolveDepressions');
const cells = pack.cells;
const land = cells.i.filter(i => cells.h[i] >= 20 && cells.h[i] < 95 && !cells.b[i]); // exclude near-border cells
land.sort(highest); // highest cells go first
let depressed = false;
for (let l = 0, depression = Infinity; depression > 1 && l < 100; l++) {
depression = 0;
for (const i of land) {
const minHeight = d3.min(cells.c[i].map(c => cells.h[c]));
if (minHeight === 100) continue; // already max height
if (cells.h[i] <= minHeight) {cells.h[i] = minHeight + 1; depression++;}
if (cells.h[i] <= minHeight) {
cells.h[i] = minHeight + 1;
depression++;
depressed = true;
}
}
}
console.timeEnd('resolveDepressions');
//const depressed = cells.i.filter(i => cells.h[i] >= 20 && cells.h[i] < 95 && !cells.b[i] && cells.h[i] <= d3.min(cells.c[i].map(c => cells.h[c])));
//debug.selectAll(".deps").data(depressed).enter().append("circle").attr("r", 0.8).attr("cx", d => cells.p[d][0]).attr("cy", d => cells.p[d][1]);
return depressed;
}
// add more river points on 1/3 and 2/3 of length
@ -221,6 +227,6 @@
return round(right + left, 2);
}
return {generate, addMeandring, getPath};
return {generate, resolveDepressions, addMeandring, getPath};
})));