backups/Fantasy-Map-Generator
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merge completed... now to fix all the bugs...

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howlingsails 2021-12-12 23:02:38 -08:00
commit 87c4d80fbc
3472 changed files with 466748 additions and 6517 deletions
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74
modules/heightmap-generator.js
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@ -1,38 +1,38 @@
"use strict";
'use strict';
window.HeightmapGenerator = (function () {
let cells, p;
const generate = function () {
TIME && console.time("generateHeightmap");
TIME && console.time('generateHeightmap');
cells = grid.cells;
p = grid.points;
cells.h = new Uint8Array(grid.points.length);
const template = document.getElementById("templateInput").value;
const template = document.getElementById('templateInput').value;
const templateString = HeightmapTemplates[template];
const steps = templateString.split("\n");
const steps = templateString.split('\n');
if (!steps.length) throw new Error(`Heightmap template: no steps. Template: ${template}. Steps: ${steps}`);
for (const step of steps) {
const elements = step.trim().split(" ");
const elements = step.trim().split(' ');
if (elements.length < 2) throw new Error(`Heightmap template: steps < 2. Template: ${template}. Step: ${elements}`);
addStep(...elements);
}
TIME && console.timeEnd("generateHeightmap");
TIME && console.timeEnd('generateHeightmap');
};
function addStep(a1, a2, a3, a4, a5) {
if (a1 === "Hill") return addHill(a2, a3, a4, a5);
if (a1 === "Pit") return addPit(a2, a3, a4, a5);
if (a1 === "Range") return addRange(a2, a3, a4, a5);
if (a1 === "Trough") return addTrough(a2, a3, a4, a5);
if (a1 === "Strait") return addStrait(a2, a3);
if (a1 === "Add") return modify(a3, +a2, 1);
if (a1 === "Multiply") return modify(a3, 0, +a2);
if (a1 === "Smooth") return smooth(a2);
if (a1 === 'Hill') return addHill(a2, a3, a4, a5);
if (a1 === 'Pit') return addPit(a2, a3, a4, a5);
if (a1 === 'Range') return addRange(a2, a3, a4, a5);
if (a1 === 'Trough') return addTrough(a2, a3, a4, a5);
if (a1 === 'Strait') return addStrait(a2, a3);
if (a1 === 'Add') return modify(a3, +a2, 1);
if (a1 === 'Multiply') return modify(a3, 0, +a2);
if (a1 === 'Smooth') return smooth(a2);
}
function getBlobPower() {
@ -201,13 +201,13 @@ window.HeightmapGenerator = (function () {
while (queue.length) {
const frontier = queue.slice();
(queue = []), i++;
frontier.forEach(i => {
frontier.forEach((i) => {
cells.h[i] = lim(cells.h[i] + h * (Math.random() * 0.3 + 0.85));
});
h = h ** power - 1;
if (h < 2) break;
frontier.forEach(f => {
cells.c[f].forEach(i => {
frontier.forEach((f) => {
cells.c[f].forEach((i) => {
if (!used[i]) {
queue.push(i);
used[i] = 1;
@ -295,13 +295,13 @@ window.HeightmapGenerator = (function () {
while (queue.length) {
const frontier = queue.slice();
(queue = []), i++;
frontier.forEach(i => {
frontier.forEach((i) => {
cells.h[i] = lim(cells.h[i] - h * (Math.random() * 0.3 + 0.85));
});
h = h ** power - 1;
if (h < 2) break;
frontier.forEach(f => {
cells.c[f].forEach(i => {
frontier.forEach((f) => {
cells.c[f].forEach((i) => {
if (!used[i]) {
queue.push(i);
used[i] = 1;
@ -323,11 +323,11 @@ window.HeightmapGenerator = (function () {
}
};
const addStrait = function (width, direction = "vertical") {
const addStrait = function (width, direction = 'vertical') {
width = Math.min(getNumberInRange(width), grid.cellsX / 3);
if (width < 1 && P(width)) return;
const used = new Uint8Array(cells.h.length);
const vert = direction === "vertical";
const vert = direction === 'vertical';
const startX = vert ? Math.floor(Math.random() * graphWidth * 0.4 + graphWidth * 0.3) : 5;
const startY = vert ? 5 : Math.floor(Math.random() * graphHeight * 0.4 + graphHeight * 0.3);
const endX = vert ? Math.floor(graphWidth - startX - graphWidth * 0.1 + Math.random() * graphWidth * 0.2) : graphWidth - 5;
@ -377,34 +377,36 @@ window.HeightmapGenerator = (function () {
};
const modify = function (range, add, mult, power) {
const min = range === "land" ? 20 : range === "all" ? 0 : +range.split("-")[0];
const max = range === "land" || range === "all" ? 100 : +range.split("-")[1];
grid.cells.h = grid.cells.h.map(h => (h >= min && h <= max ? mod(h) : h));
const min = range === 'land' ? 20 : range === 'all' ? 0 : +range.split('-')[0];
const max = range === 'land' || range === 'all' ? 100 : +range.split('-')[1];
const isLand = min === 20;
function mod(v) {
if (add) v = min === 20 ? Math.max(v + add, 20) : v + add;
if (mult !== 1) v = min === 20 ? (v - 20) * mult + 20 : v * mult;
if (power) v = min === 20 ? (v - 20) ** power + 20 : v ** power;
return lim(v);
}
grid.cells.h = grid.cells.h.map((h) => {
if (h < min || h > max) return h;
if (add) h = isLand ? Math.max(h + add, 20) : h + add;
if (mult !== 1) h = isLand ? (h - 20) * mult + 20 : h * mult;
if (power) h = isLand ? (h - 20) ** power + 20 : h ** power;
return lim(h);
});
};
const smooth = function (fr = 2, add = 0) {
cells.h = cells.h.map((h, i) => {
const a = [h];
cells.c[i].forEach(c => a.push(cells.h[c]));
cells.c[i].forEach((c) => a.push(cells.h[c]));
return lim((h * (fr - 1) + d3.mean(a) + add) / fr);
});
};
function getPointInRange(range, length) {
if (typeof range !== "string") {
ERROR && console.error("Range should be a string");
if (typeof range !== 'string') {
ERROR && console.error('Range should be a string');
return;
}
const min = range.split("-")[0] / 100 || 0;
const max = range.split("-")[1] / 100 || min;
const min = range.split('-')[0] / 100 || 0;
const max = range.split('-')[1] / 100 || min;
return rand(min * length, max * length);
}