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Add constants

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Tangent Wantwight 2024-01-13 11:44:36 -05:00
parent 92a0af5457
commit 4eacd3a5aa
3 changed files with 35 additions and 14 deletions
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8
island/data.ts Normal file
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@ -0,0 +1,8 @@
export type TILE = number;
export const WATER = 0;
export const BEACH = 1;
export const LIGHT_FOREST = 2;
export const DENSE_FOREST = 3;
export const MOUNTAIN = 4;
export const ICECAP = 9;

30
island/grid.ts
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@ -1,4 +1,5 @@
import { Prng, mulberry32 } from "../lib/prng"; import { Prng, mulberry32 } from "../lib/prng";
import { BEACH, ICECAP, LIGHT_FOREST, MOUNTAIN, WATER } from "./data";
export class IslandGrid { export class IslandGrid {
data: number[]; data: number[];
@ -99,7 +100,7 @@ export class IslandGrid {
// flat, increase elevation // flat, increase elevation
const newValue = ++this.data[pos]; const newValue = ++this.data[pos];
if (newValue == 9) { if (newValue == ICECAP) {
this.done = true; this.done = true;
} }
} }
@ -111,28 +112,39 @@ export class IslandGrid {
} }
public step() { public step() {
const lowlandTiles1 = this.floodSearch(this.lobePos1, (tile) => tile > 0); const lowlandTiles1 = this.floodSearch(
const lowlandTiles2 = this.floodSearch(this.lobePos2, (tile) => tile > 0); this.lobePos1,
(tile) => tile > WATER
);
const lowlandTiles2 = this.floodSearch(
this.lobePos2,
(tile) => tile > WATER
);
// grow shore // grow shore
const shoreTiles1 = lowlandTiles1.filter((pos) => this.data[pos] == 0); const shoreTiles1 = lowlandTiles1.filter((pos) => this.data[pos] == WATER);
this.dropWithin(shoreTiles1); this.dropWithin(shoreTiles1);
const shoreTiles2 = lowlandTiles2.filter((pos) => this.data[pos] == 0); const shoreTiles2 = lowlandTiles2.filter((pos) => this.data[pos] == WATER);
this.dropWithin(shoreTiles2); this.dropWithin(shoreTiles2);
// seed beach // seed beach
const beachTiles = lowlandTiles1.filter((pos) => this.data[pos] == 1); const beachTiles = lowlandTiles1.filter((pos) => this.data[pos] == BEACH);
this.dropWithin(beachTiles); this.dropWithin(beachTiles);
// expand forest // expand forest
const forestLobe = this.floodSearch(this.lobePos1, (tile) => tile > 1); const forestLobe = this.floodSearch(this.lobePos1, (tile) => tile > BEACH);
const forestTiles = forestLobe.filter((pos) => this.data[pos] == 2); const forestTiles = forestLobe.filter(
(pos) => this.data[pos] == LIGHT_FOREST
);
this.dropWithin(forestTiles); this.dropWithin(forestTiles);
this.dropWithin(forestTiles); this.dropWithin(forestTiles);
this.dropWithin(forestTiles); this.dropWithin(forestTiles);
// form mountain // form mountain
const mountainTiles = this.floodSearch(this.basePos, (tile) => tile > 4); const mountainTiles = this.floodSearch(
this.basePos,
(tile) => tile > MOUNTAIN
);
this.dropWithin(mountainTiles); // GENERATOR this.dropWithin(mountainTiles); // GENERATOR
// const erodePos = islandTiles[islands.rng() % islandTiles.length]; // const erodePos = islandTiles[islands.rng() % islandTiles.length];

11
island/render.ts
View file

@ -1,3 +1,4 @@
import { BEACH, DENSE_FOREST, LIGHT_FOREST, MOUNTAIN, WATER } from "./data";
import { IslandGrid } from "./grid"; import { IslandGrid } from "./grid";
export function renderIslands( export function renderIslands(
@ -8,19 +9,19 @@ export function renderIslands(
for (let x = 0; x < islands.width; x++) { for (let x = 0; x < islands.width; x++) {
const tile = islands.data[islands.xy(x, y)]; const tile = islands.data[islands.xy(x, y)];
switch (tile) { switch (tile) {
case 0: case WATER:
cx.fillStyle = "blue"; cx.fillStyle = "blue";
break; break;
case 1: case BEACH:
cx.fillStyle = "yellow"; cx.fillStyle = "yellow";
break; break;
case 2: case LIGHT_FOREST:
cx.fillStyle = "#00ff00"; cx.fillStyle = "#00ff00";
break; break;
case 3: case DENSE_FOREST:
cx.fillStyle = "#008800"; cx.fillStyle = "#008800";
break; break;
case 4: case MOUNTAIN:
case 5: case 5:
case 6: case 6:
case 7: case 7: