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no permafrost biome in water

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Azgaar 2021-08-23 12:57:09 +03:00
parent 0de5b7c6cd
commit f5cbb05f71
1 changed files with 12 additions and 12 deletions
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24
main.js
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@ -1370,22 +1370,21 @@ function reMarkFeatures() {
// assign biome id for each cell
function defineBiomes() {
TIME && console.time("defineBiomes");
const cells = pack.cells,
f = pack.features,
temp = grid.cells.temp,
prec = grid.cells.prec;
const {cells} = pack;
const {temp, prec} = grid.cells;
cells.biome = new Uint8Array(cells.i.length); // biomes array
for (const i of cells.i) {
const t = temp[cells.g[i]]; // cell temperature
const h = cells.h[i]; // cell height
const m = h < 20 ? 0 : calculateMoisture(i); // cell moisture
cells.biome[i] = getBiomeId(m, t, h);
const temperature = temp[cells.g[i]];
const height = cells.h[i];
const moisture = height < 20 ? 0 : calculateMoisture(i);
cells.biome[i] = getBiomeId(moisture, temperature, height);
}
function calculateMoisture(i) {
let moist = prec[cells.g[i]];
if (cells.r[i]) moist += Math.max(cells.fl[i] / 20, 2);
const n = cells.c[i]
.filter(isLand)
.map(c => prec[cells.g[c]])
@ -1398,12 +1397,13 @@ function defineBiomes() {
// assign biome id to a cell
function getBiomeId(moisture, temperature, height) {
if (temperature < -5) return 11; // permafrost biome, including sea ice
if (height < 20) return 0; // marine biome: liquid water cells
if (temperature < -5) return 11; // permafrost biome
if (moisture > 40 && temperature > -2 && (height < 25 || (moisture > 24 && height > 24))) return 12; // wetland biome
const m = Math.min((moisture / 5) | 0, 4); // moisture band from 0 to 4
const t = Math.min(Math.max(20 - temperature, 0), 25); // temparature band from 0 to 25
return biomesData.biomesMartix[m][t];
const moistureBand = Math.min((moisture / 5) | 0, 4); // [0-4]
const temperatureBand = Math.min(Math.max(20 - temperature, 0), 25); // [0-25]
return biomesData.biomesMartix[moistureBand][temperatureBand];
}
// assess cells suitability to calculate population and rand cells for culture center and burgs placement