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Wetland

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Added a function to calculate wetland in separated statements. Fixed some typos.
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Ángel Montero Lamas 2021-12-15 18:12:56 +01:00 • committed by GitHub
parent 058cd568f2
commit d2991643d0
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1 changed files with 9 additions and 3 deletions
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main.js
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@ -907,7 +907,7 @@ function defineMapSize() {
const template = document.getElementById("templateInput").value; // heightmap template const template = document.getElementById("templateInput").value; // heightmap template
const part = grid.features.some(f => f.land && f.border); // if land goes over map borders const part = grid.features.some(f => f.land && f.border); // if land goes over map borders
const max = part ? 80 : 100; // max size const max = part ? 80 : 100; // max size
const lat = () => gauss(P(0.5) ? 40 : 60, 15, 25, 75); // latiture shift const lat = () => gauss(P(0.5) ? 40 : 60, 15, 25, 75); // latitude shift
if (!part) { if (!part) {
if (template === "Pangea") return [100, 50]; if (template === "Pangea") return [100, 50];
@ -1052,7 +1052,7 @@ function generatePrecipitation() {
} }
let humidity = maxPrec - cells.h[first]; // initial water amount let humidity = maxPrec - cells.h[first]; // initial water amount
if (humidity <= 0) continue; // if first cell in row is too elevated cosdired wind dry if (humidity <= 0) continue; // if first cell in row is too elevated consider wind dry
for (let s = 0, current = first; s < steps; s++, current += next) { for (let s = 0, current = first; s < steps; s++, current += next) {
if (cells.temp[current] < -5) continue; // no flux in permafrost if (cells.temp[current] < -5) continue; // no flux in permafrost
@ -1393,6 +1393,12 @@ function reMarkFeatures() {
TIME && console.timeEnd("reMarkFeatures"); TIME && console.timeEnd("reMarkFeatures");
} }
function isWetLand(moisture, temperature, height) {
if (moisture > 40 && temperature > -2 && height < 25) return true; //near coast
if (moisture > 24 && temperature > -2 && height > 24 && height < 60) return true; //off coast
return false;
}
// assign biome id for each cell // assign biome id for each cell
function defineBiomes() { function defineBiomes() {
TIME && console.time("defineBiomes"); TIME && console.time("defineBiomes");
@ -1425,7 +1431,7 @@ function defineBiomes() {
function getBiomeId(moisture, temperature, height) { function getBiomeId(moisture, temperature, height) {
if (height < 20) return 0; // marine biome: all water cells if (height < 20) return 0; // marine biome: all water cells
if (temperature < -5) return 11; // permafrost biome if (temperature < -5) return 11; // permafrost biome
if (moisture > 40 && temperature > -2 && (height < 25 || (moisture > 24 && height > 24 && height < 60))) return 12; // wetland biome if (isWetLand(moisture, temperature, height)) return 12; // wetland biome
const moistureBand = Math.min((moisture / 5) | 0, 4); // [0-4] const moistureBand = Math.min((moisture / 5) | 0, 4); // [0-4]
const temperatureBand = Math.min(Math.max(20 - temperature, 0), 25); // [0-25] const temperatureBand = Math.min(Math.max(20 - temperature, 0), 25); // [0-25]