Switch from characters to numerical tile IDs

This commit is contained in:
Matthias Schiffer 2018-10-31 21:55:41 +01:00
parent 31c131289c
commit 1f9cd7a110
Signed by: neocturne
GPG key ID: 16EF3F64CB201D9C
4 changed files with 128 additions and 137 deletions

View file

@ -1,111 +1,111 @@
{
"tiles": {
"G": "grass",
"<": "road_left",
">": "road_right"
},
"tiles": [
"grass",
"road_left",
"road_right"
],
"collision": [
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"00000001100000000000000000000000",
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}

View file

@ -1,21 +1,21 @@
import {mapFromObject} from '../../util';
interface Input {
readonly tiles: {[key: string]: string};
readonly collision: string[];
readonly layers: string[][][];
readonly tiles: string[];
readonly collision: boolean[][];
readonly layers: number[][][];
}
export default class MapData {
public readonly tiles: Map<string, string>;
public readonly collision: string[];
public readonly layers: string[][][];
public readonly tiles: string[];
public readonly collision: boolean[][];
public readonly layers: number[][][];
public readonly width: number;
public readonly height: number;
constructor(data: Input) {
this.tiles = mapFromObject(data.tiles);
this.tiles = data.tiles;
this.collision = data.collision;
this.layers = data.layers;

View file

@ -1,38 +1,38 @@
import MapData from '../model/data/MapData';
import { mapValues, nextPowerOf2 } from '../util';
import { nextPowerOf2 } from '../util';
import Renderer from './renderer/Renderer';
import { SpriteCoords, SpriteView, SpriteViewBuilder } from './sprite';
import { loadImages, mkTexture } from './util/image';
import { loadImage, mkTexture } from './util/image';
interface TileMap {
interface Tileset {
texture: WebGLTexture;
tiles: Map<string, SpriteCoords>;
tiles: SpriteCoords[];
}
function loadTiles(tiles: Map<string, string>): Promise<Map<string, HTMLImageElement>> {
return loadImages(mapValues((t) => `resources/sprite/tile/${t}.png`, tiles));
function loadTiles(tiles: string[]): Promise<HTMLImageElement[]> {
return Promise.all(tiles.map((t) => loadImage(`resources/sprite/tile/${t}.png`)));
}
function mkTileMap(
function mkTileset(
gl: WebGLRenderingContext,
tiles: Map<string, HTMLImageElement>,
): TileMap {
tiles: HTMLImageElement[],
): Tileset {
const tileSize = 32;
const canvasDim = nextPowerOf2(Math.sqrt(tiles.size));
const canvasDim = nextPowerOf2(Math.sqrt(tiles.length));
const canvasSize = canvasDim * tileSize;
const canvas = document.createElement('canvas');
canvas.width = canvas.height = canvasSize;
let x = 0, y = 0;
const map: Map<string, SpriteCoords> = new Map();
const tileCoords: SpriteCoords[] = [];
const ctx = canvas.getContext('2d') as CanvasRenderingContext2D;
for (const [k, tile] of tiles) {
for (const tile of tiles) {
ctx.drawImage(tile, x * tileSize, y * tileSize);
map.set(k, [x / canvasDim, y / canvasDim, (x + 1) / canvasDim, (y + 1) / canvasDim]);
tileCoords.push([x / canvasDim, y / canvasDim, (x + 1) / canvasDim, (y + 1) / canvasDim]);
x++;
if (x === canvasDim) {
@ -43,31 +43,28 @@ function mkTileMap(
return {
texture: mkTexture(gl, canvas),
tiles: map,
tiles: tileCoords,
};
}
function addSprite(builder: SpriteViewBuilder, tileMap: TileMap, x: number, y: number, tile: string) {
if (tile === ' ')
function addSprite(builder: SpriteViewBuilder, tileset: Tileset, x: number, y: number, tile: number) {
if (tile === 0)
return;
const tilePos = tileMap.tiles.get(tile);
if (!tilePos)
throw new Error('invalid tile specifier in map data');
const tilePos = tileset.tiles[tile - 1];
builder.addSprite([x, y, x + 1, y + 1], tilePos);
}
export async function loadMap(r: Renderer, map: MapData): Promise<SpriteView> {
const tiles = await loadTiles(map.tiles);
const tileMap = mkTileMap(r.getContext(), tiles);
const tileset = mkTileset(r.getContext(), tiles);
const builder = new SpriteViewBuilder(r, tileMap.texture);
const builder = new SpriteViewBuilder(r, tileset.texture);
for (const layer of map.layers)
for (let x = 0; x < map.width; x++)
for (let y = 0; y < map.height; y++)
addSprite(builder, tileMap, x, y, layer[y][x]);
addSprite(builder, tileset, x, y, layer[y][x]);
return builder.build();
}

View file

@ -1,5 +1,3 @@
import { mapValuesAsync } from '../../util';
export function loadImage(url: string): Promise<HTMLImageElement> {
return new Promise((resolve, reject) => {
const img = new Image();
@ -9,10 +7,6 @@ export function loadImage(url: string): Promise<HTMLImageElement> {
});
}
export function loadImages(urls: Map<string, string>): Promise<Map<string, HTMLImageElement>> {
return mapValuesAsync(loadImage, urls);
}
export function mkTexture(gl: WebGLRenderingContext, src: HTMLCanvasElement|HTMLImageElement): WebGLTexture {
const texture = gl.createTexture();
if (!texture)