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

height generation - ability to pass cells number

Browse source
This commit is contained in:
Azgaar 2022-05-29 14:33:07 +03:00
parent ab160e609c
commit 4f372c7a46
3 changed files with 66 additions and 42 deletions
Download patch file Download diff file Expand all files Collapse all files

10
modules/dynamic/heightmap-selection.js
View file

@ -282,10 +282,14 @@ function drawHeights(heights) {
}
function generateHeightmap(id) {
HeightmapGenerator.resetHeights();
const heights = HeightmapGenerator.fromTemplate(id);
const heights = new Uint8Array(grid.points.length);
// use cells number of the current graph, no matter what UI input value is
const cellsDesired = rn((graphWidth * graphHeight) / grid.spacing ** 2, -3);
HeightmapGenerator.setHeights(heights, cellsDesired);
const newHeights = HeightmapGenerator.fromTemplate(id);
HeightmapGenerator.cleanup();
return heights;
return newHeights;
}
function drawTemplatePreview(id) {

92
modules/heightmap-generator.js
View file

@ -2,9 +2,23 @@
window.HeightmapGenerator = (function () {
let heights = null;
const setHeights = h => (heights = h);
const resetHeights = () => (heights = new Uint8Array(grid.points.length));
let blobPower;
let linePower;
const setHeights = (savedHeights, cellsNumber) => {
heights = savedHeights;
blobPower = getBlobPower(cellsNumber);
linePower = getLinePower(cellsNumber);
};
const resetHeights = () => {
heights = new Uint8Array(grid.points.length);
const cellsNumber = +byId("pointsInput").dataset.cells;
blobPower = getBlobPower(cellsNumber);
linePower = getLinePower(cellsNumber);
};
const getHeights = () => heights;
const cleanup = () => (heights = null);
const fromTemplate = template => {
@ -72,43 +86,47 @@ window.HeightmapGenerator = (function () {
if (tool === "Smooth") return smooth(a2);
}
function getBlobPower() {
const cells = +byId("pointsInput").dataset.cells;
if (cells === 1000) return 0.93;
if (cells === 2000) return 0.95;
if (cells === 5000) return 0.96;
if (cells === 10000) return 0.98;
if (cells === 20000) return 0.985;
if (cells === 30000) return 0.987;
if (cells === 40000) return 0.9892;
if (cells === 50000) return 0.9911;
if (cells === 60000) return 0.9921;
if (cells === 70000) return 0.9934;
if (cells === 80000) return 0.9942;
if (cells === 90000) return 0.9946;
if (cells === 100000) return 0.995;
function getBlobPower(cells) {
const blobPowerMap = {
1000: 0.93,
2000: 0.95,
5000: 0.96,
10000: 0.98,
20000: 0.985,
30000: 0.987,
40000: 0.9892,
50000: 0.9911,
60000: 0.9921,
70000: 0.9934,
80000: 0.9942,
90000: 0.9946,
100000: 0.995
};
return blobPowerMap[cells] || 0.98;
}
function getLinePower() {
const cells = +byId("pointsInput").dataset.cells;
if (cells === 1000) return 0.74;
if (cells === 2000) return 0.75;
if (cells === 5000) return 0.78;
if (cells === 10000) return 0.81;
if (cells === 20000) return 0.82;
if (cells === 30000) return 0.83;
if (cells === 40000) return 0.84;
if (cells === 50000) return 0.855;
if (cells === 60000) return 0.87;
if (cells === 70000) return 0.885;
if (cells === 80000) return 0.91;
if (cells === 90000) return 0.92;
if (cells === 100000) return 0.93;
const linePowerMap = {
1000: 0.74,
2000: 0.75,
5000: 0.78,
10000: 0.81,
20000: 0.82,
30000: 0.83,
40000: 0.84,
50000: 0.855,
60000: 0.87,
70000: 0.885,
80000: 0.91,
90000: 0.92,
100000: 0.93
};
return linePowerMap[cells] || 0.81;
}
const addHill = (count, height, rangeX, rangeY) => {
count = getNumberInRange(count);
const power = getBlobPower();
while (count > 0) {
addOneHill();
count--;
@ -134,7 +152,7 @@ window.HeightmapGenerator = (function () {
for (const c of grid.cells.c[q]) {
if (change[c]) continue;
change[c] = change[q] ** power * (Math.random() * 0.2 + 0.9);
change[c] = change[q] ** blobPower * (Math.random() * 0.2 + 0.9);
if (change[c] > 1) queue.push(c);
}
}
@ -166,7 +184,7 @@ window.HeightmapGenerator = (function () {
const queue = [start];
while (queue.length) {
const q = queue.shift();
h = h ** getBlobPower() * (Math.random() * 0.2 + 0.9);
h = h ** blobPower * (Math.random() * 0.2 + 0.9);
if (h < 1) return;
grid.cells.c[q].forEach(function (c, i) {
@ -181,7 +199,6 @@ window.HeightmapGenerator = (function () {
const addRange = (count, height, rangeX, rangeY) => {
count = getNumberInRange(count);
const power = getLinePower();
while (count > 0) {
addOneRange();
count--;
@ -242,7 +259,7 @@ window.HeightmapGenerator = (function () {
frontier.forEach(i => {
heights[i] = lim(heights[i] + h * (Math.random() * 0.3 + 0.85));
});
h = h ** power - 1;
h = h ** linePower - 1;
if (h < 2) break;
frontier.forEach(f => {
grid.cells.c[f].forEach(i => {
@ -268,7 +285,6 @@ window.HeightmapGenerator = (function () {
const addTrough = (count, height, rangeX, rangeY) => {
count = getNumberInRange(count);
const power = getLinePower();
while (count > 0) {
addOneTrough();
count--;
@ -337,7 +353,7 @@ window.HeightmapGenerator = (function () {
frontier.forEach(i => {
heights[i] = lim(heights[i] - h * (Math.random() * 0.3 + 0.85));
});
h = h ** power - 1;
h = h ** linePower - 1;
if (h < 2) break;
frontier.forEach(f => {
grid.cells.c[f].forEach(i => {

6
modules/ui/heightmap-editor.js
View file

@ -940,7 +940,11 @@ function editHeightmap(options) {
const seed = byId("templateSeed").value;
if (seed) Math.random = aleaPRNG(seed);
HeightmapGenerator.resetHeights();
const heights = new Uint8Array(grid.points.length);
// use cells number of the current graph, no matter what UI input value is
const cellsDesired = rn((graphWidth * graphHeight) / grid.spacing ** 2, -3);
HeightmapGenerator.setHeights(heights, cellsDesired);
restartHistory();
for (const step of steps) {