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refactor: roads generation - define by distance to make route less curvy

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This commit is contained in:
max 2022-08-20 16:59:14 +03:00
parent 2c3cdad59d
commit 1dd185354b
2 changed files with 34 additions and 17 deletions
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42
src/scripts/generation/pack/generateRoutes.ts
View file

@ -2,11 +2,14 @@ import Delaunator from "delaunator";
import FlatQueue from "flatqueue";
import {TIME} from "config/logging";
import {ROUTES} from "config/generation";
import {ELEVATION, MIN_LAND_HEIGHT, ROUTES} from "config/generation";
import {dist2} from "utils/functionUtils";
import {drawLine} from "utils/debugUtils";
export function generateRoutes(burgs: TBurgs, cells: Pick<IPack["cells"], "c" | "h" | "biome" | "state" | "burg">) {
export function generateRoutes(
burgs: TBurgs,
cells: Pick<IPack["cells"], "c" | "p" | "h" | "biome" | "state" | "burg">
) {
const cellRoutes = new Uint8Array(cells.h.length);
const validBurgs = burgs.filter(burg => burg.i && !(burg as IBurg).removed) as IBurg[];
const mainRoads = generateMainRoads();
@ -108,15 +111,20 @@ export function generateRoutes(burgs: TBurgs, cells: Pick<IPack["cells"], "c" |
const next = queue.pop()!;
for (const neibCellId of cells.c[next]) {
if (cells.h[neibCellId] < 20) continue; // ignore water cells
const stateChangeCost = cells.state && cells.state[neibCellId] !== cells.state[next] ? 400 : 0; // prefer to lay within the same state
if (cells.h[neibCellId] < MIN_LAND_HEIGHT) continue; // ignore water cells
const habitability = biomesData.habitability[cells.biome[neibCellId]];
if (!habitability) continue; // avoid inhabitable cells (eg. lava, glacier)
const habitedCost = habitability ? Math.max(100 - habitability, 0) : 400; // routes tend to lay within populated areas
const heightChangeCost = Math.abs(cells.h[neibCellId] - cells.h[next]) * 10; // routes tend to avoid elevation changes
const heightCost = cells.h[neibCellId] > 80 ? cells.h[neibCellId] : 0; // routes tend to avoid mountainous areas
const cellCoast = 10 + stateChangeCost + habitedCost + heightChangeCost + heightCost;
const totalCost = priority + (cellRoutes[neibCellId] || cells.burg[neibCellId] ? cellCoast / 3 : cellCoast);
if (!habitability) continue; // inhabitable cells are not passable (eg. lava, glacier)
const distanceCost = dist2(cells.p[next], cells.p[neibCellId]);
const habitabilityModifier = 1 + Math.max(100 - habitability, 0) / 1000; // [1, 1.1];
const heightModifier = 1 + Math.max(cells.h[neibCellId] - ELEVATION.HILLS, 0) / 500; // [1, 1.1];
const roadModifier = cellRoutes[neibCellId] ? 0.5 : 1;
const burgModifier = cells.burg[neibCellId] ? 0.5 : 1;
const cellsCost = distanceCost * habitabilityModifier * heightModifier * roadModifier * burgModifier;
const totalCost = priority + cellsCost;
if (from[neibCellId] || totalCost >= cost[neibCellId]) continue;
from[neibCellId] = next;
@ -168,12 +176,6 @@ function getRouteSegments(pathCells: number[], cellRoutes: Uint8Array) {
const hasRoute = (cellId: number) => cellRoutes[cellId] !== 0;
const noRoute = (cellId: number) => cellRoutes[cellId] === 0;
const segments: number[][] = [];
let segment: number[] = [];
// UC: complitely new route
if (pathCells.every(noRoute)) return [pathCells];
// UC: only first and/or last cell have route
if (pathCells.slice(1, -1).every(noRoute)) return [pathCells];
@ -181,6 +183,9 @@ function getRouteSegments(pathCells: number[], cellRoutes: Uint8Array) {
if (pathCells.every(hasRoute)) return [];
// UC: discontinuous route
const segments: number[][] = [];
let segment: number[] = [];
for (let i = 0; i < pathCells.length; i++) {
const cellId = pathCells[i];
const nextCellId = pathCells[i + 1];
@ -190,6 +195,11 @@ function getRouteSegments(pathCells: number[], cellRoutes: Uint8Array) {
const noConnection = !hasRoute || !nextHasRoute;
if (noConnection) segment.push(cellId);
if (nextHasRoute) {
if (segment.length) segments.push(segment);
segment = [];
}
}
return segments;

9
src/scripts/generation/pack/pack.ts
View file

@ -117,7 +117,14 @@ export function createPack(grid: IGrid): IPack {
}
);
const {cellRoutes, routes} = generateRoutes(burgs, {c: cells.c, h: heights, biome, state: stateIds, burg: burgIds});
const {cellRoutes, routes} = generateRoutes(burgs, {
c: cells.c,
p: cells.p,
h: heights,
biome,
state: stateIds,
burg: burgIds
});
// Religions.generate();
// BurgsAndStates.defineStateForms();