backups/Fantasy-Map-Generator
1
0
Fork 0
mirror of https://github.com/Azgaar/Fantasy-Map-Generator.git synced 2025-12-18 02:01:22 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

more porting work

Browse source
This commit is contained in:
barrulus 2025-08-05 13:12:07 -04:00
parent 37391c8e8b
commit 7f31969f50
38 changed files with 3673 additions and 463 deletions
Download patch file Download diff file Expand all files Collapse all files

64
procedural/src/engine/modules/features.js
View file

@ -8,7 +8,7 @@ const WATER_COAST = -1;
const DEEP_WATER = -2;
// calculate distance to coast for every cell
function markup({distanceField, neighbors, start, increment, limit = utils.INT8_MAX}) {
function markup({distanceField, neighbors, start, increment, limit = 127}) {
for (let distance = start, marked = Infinity; marked > 0 && distance !== limit; distance += increment) {
marked = 0;
const prevDistance = distance - increment;
@ -24,8 +24,31 @@ function markup({distanceField, neighbors, start, increment, limit = utils.INT8_
}
}
// mark Grid features (ocean, lakes, islands) and calculate distance field
/**
* Mark Grid features (ocean, lakes, islands) and calculate distance field
*
* REQUIRES:
* - grid.cells.h (heights from heightmap generation)
* - grid.cells.c (cell neighbors from grid generation)
* - config.debug (debug configuration)
*
* PROVIDES:
* - grid.cells.f (feature assignments)
* - grid.cells.t (distance field)
* - grid.features (features array)
*/
export function markupGrid(grid, config, utils) {
// Check required properties exist
if (!grid.cells.h) {
throw new Error("Features module requires grid.cells.h (heights) from heightmap generation");
}
if (!grid.cells.c) {
throw new Error("Features module requires grid.cells.c (neighbors) from grid generation");
}
if (!config.debug) {
throw new Error("Features module requires config.debug section");
}
const {rn} = utils;
const { TIME } = config.debug;
@ -86,8 +109,31 @@ export function markupGrid(grid, config, utils) {
return updatedGrid;
}
// mark Pack features (ocean, lakes, islands), calculate distance field and add properties
/**
* Mark Pack features (ocean, lakes, islands), calculate distance field and add properties
*
* REQUIRES:
* - pack.cells.h (heights from pack generation)
* - pack.cells.c (cell neighbors from pack generation)
* - grid.features (features from grid markup)
*
* PROVIDES:
* - pack.cells.f (feature assignments)
* - pack.cells.t (distance field)
* - pack.features (features array)
*/
export function markupPack(pack, grid, config, utils, modules) {
// Check required properties exist
if (!pack.cells.h) {
throw new Error("Features markupPack requires pack.cells.h (heights) from pack generation");
}
if (!pack.cells.c) {
throw new Error("Features markupPack requires pack.cells.c (neighbors) from pack generation");
}
if (!grid.features) {
throw new Error("Features markupPack requires grid.features from grid markup");
}
const {TIME} = config;
const {isLand, isWater, dist2, rn, clipPoly, unique, createTypedArray, connectVertices} = utils;
const {Lakes} = modules;
@ -111,7 +157,7 @@ export function markupPack(pack, grid, config, utils, modules) {
const firstCell = queue[0];
featureIds[firstCell] = featureId;
const land = isLand(firstCell);
const land = isLand(firstCell, pack);
let border = Boolean(borderCells[firstCell]); // true if feature touches map border
let totalCells = 1; // count cells in a feature
@ -121,7 +167,7 @@ export function markupPack(pack, grid, config, utils, modules) {
if (!border && borderCells[cellId]) border = true;
for (const neighborId of neighbors[cellId]) {
const isNeibLand = isLand(neighborId);
const isNeibLand = isLand(neighborId, pack);
if (land && !isNeibLand) {
distanceField[cellId] = LAND_COAST;
@ -166,7 +212,7 @@ export function markupPack(pack, grid, config, utils, modules) {
return updatedPack;
function defineHaven(cellId) {
const waterCells = neighbors[cellId].filter(isWater);
const waterCells = neighbors[cellId].filter(i => isWater(i, pack));
const distances = waterCells.map(neibCellId => dist2(cells.p[cellId], cells.p[neibCellId]));
const closest = distances.indexOf(Math.min.apply(Math, distances));
@ -177,7 +223,7 @@ export function markupPack(pack, grid, config, utils, modules) {
function addFeature({firstCell, land, border, featureId, totalCells}) {
const type = land ? "island" : border ? "ocean" : "lake";
const [startCell, featureVertices] = getCellsData(type, firstCell);
const points = clipPoly(featureVertices.map(vertex => vertices.p[vertex]));
const points = clipPoly(featureVertices.map(vertex => vertices.p[vertex]), config);
const area = d3.polygonArea(points); // feature perimiter area
const absArea = Math.abs(rn(area));
@ -194,8 +240,8 @@ export function markupPack(pack, grid, config, utils, modules) {
if (type === "lake") {
if (area > 0) feature.vertices = feature.vertices.reverse();
feature.shoreline = unique(feature.vertices.map(vertex => vertices.c[vertex].filter(isLand)).flat());
feature.height = Lakes.getHeight(feature);
feature.shoreline = unique(feature.vertices.map(vertex => vertices.c[vertex].filter(i => isLand(i, pack))).flat());
feature.height = Lakes.getHeight(feature, pack, utils);
}
return feature;