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chore: Remove demo.

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demo/Cargo.toml
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[package]
name = "mapgen-demo"
version = "0.1.2"
authors = ["Krzysztof Langner <klangner@gmail.com>"]
description = "Map generator demo"
license = "MIT OR Apache-2.0"
repository = "https://github.com/klangner/mapgen.rs"
edition = "2018"
[lib]
crate-type = ["cdylib"]
[dependencies]
mapgen = {path=".."}
getrandom = { version = "0.2", features = ["js"] }
rand = "0.8"
wasm-bindgen = "0.2"
js-sys = "0.3"
[dependencies.web-sys]
version = "0.3.4"
features = [
'Document',
'Element',
'HtmlElement',
'Node',
'Window',
]

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demo/LICENSE-APACHE
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Apache License
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Copyright 2017 Krzysztof Langner
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demo/README.md
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# Demo application for mapgen
## Build the project:
```
wasm-pack build
cd www
npm run server
```
Deply application
```
cd www
npm run build
```
This app uses:
* [Urizen OneBit Tilesets](https://vurmux.itch.io/urizen-onebit-tilesets)

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#![enable(implicit_some)]
Grid((
texture_width: 320,
texture_height: 320,
columns: 16,
rows: 16,
))

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#![enable(implicit_some)]
Grid((
texture_width: 261,
texture_height: 261,
columns: 20,
rows: 20,
))

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demo/src/lib.rs
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use wasm_bindgen::prelude::*;
use web_sys;
use rand::prelude::*;
use mapgen::{Map, MapBuilder, NoData, geometry::Point};
use mapgen::filter::*;
use mapgen::metric;
#[wasm_bindgen]
#[repr(u8)]
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
pub enum Cell {
Floor = 0,
Wall = 1,
}
#[wasm_bindgen]
pub struct World {
width: u32,
height: u32,
tiles: Vec<Cell>,
map: Map<NoData>,
}
#[wasm_bindgen]
pub struct Position {
col: usize,
row: usize,
}
#[wasm_bindgen]
impl World {
fn new(width: u32, height: u32, map: Map<NoData>) -> World {
let tiles = (0..map.tiles.len())
.map(|i| if map.tiles[i].is_walkable() {Cell::Floor} else {Cell::Wall})
.collect();
World { width, height, tiles, map }
}
pub fn new_cellular_automata(width: u32, height: u32, seed: u32) -> World {
World::print_map_info(format!("Cellular Automata with the seed: {}", seed));
let mut rng = StdRng::seed_from_u64(seed as u64);
let map = MapBuilder::new(width as usize, height as usize)
.with(NoiseGenerator::uniform())
.with(CellularAutomata::new())
.with(AreaStartingPosition::new(XStart::CENTER, YStart::CENTER))
.with(CullUnreachable::new())
.with(DistantExit::new())
.build_with_rng(&mut rng);
World::print_map_metrics(&map);
World::new(width, height, map)
}
pub fn new_simple_rooms(width: u32, height: u32, seed: u32) -> World {
World::print_map_info(format!("Simple Rooms with the seed: {}", seed));
let mut rng = StdRng::seed_from_u64(seed as u64);
let map = MapBuilder::new(width as usize, height as usize)
.with(SimpleRooms::new())
.with(NearestCorridors::new())
.with(AreaStartingPosition::new(XStart::LEFT, YStart::TOP))
.with(DistantExit::new())
.build_with_rng(&mut rng);
World::print_map_metrics(&map);
World::new(width, height, map)
}
pub fn new_bsp_rooms(width: u32, height: u32, seed: u32) -> World {
World::print_map_info(format!("BSP Rooms with the seed: {}", seed));
let mut rng = StdRng::seed_from_u64(seed as u64);
let map = MapBuilder::new(width as usize, height as usize)
.with(BspRooms::new())
.with(NearestCorridors::new())
.with(AreaStartingPosition::new(XStart::LEFT, YStart::BOTTOM))
.with(DistantExit::new())
.build_with_rng(&mut rng);
World::print_map_metrics(&map);
World::new(width, height, map)
}
pub fn new_bsp_interior(width: u32, height: u32, seed: u32) -> World {
World::print_map_info(format!("BSP Interior with the seed: {}", seed));
let mut rng = StdRng::seed_from_u64(seed as u64);
let map = MapBuilder::new(width as usize, height as usize)
.with(BspInterior::new())
.with(AreaStartingPosition::new(XStart::CENTER, YStart::CENTER))
.with(CullUnreachable::new())
.with(DistantExit::new())
.build_with_rng(&mut rng);
World::print_map_metrics(&map);
World::new(width, height, map)
}
pub fn new_drunkard(width: u32, height: u32, seed: u32) -> World {
World::print_map_info(format!("Drunkard with the seed: {}", seed));
let mut rng = StdRng::seed_from_u64(seed as u64);
let map = MapBuilder::new(width as usize, height as usize)
.with(DrunkardsWalk::open_halls())
.with(AreaStartingPosition::new(XStart::RIGHT, YStart::BOTTOM))
.with(CullUnreachable::new())
.with(DistantExit::new())
.build_with_rng(&mut rng);
World::print_map_metrics(&map);
World::new(width, height, map)
}
pub fn new_maze(width: u32, height: u32, seed: u32) -> World {
World::print_map_info(format!("Maze with the seed: {}", seed));
let mut rng = StdRng::seed_from_u64(seed as u64);
let map = MapBuilder::new(width as usize, height as usize)
.with(MazeBuilder::new())
.with(AreaStartingPosition::new(XStart::LEFT, YStart::TOP))
.with(DistantExit::new())
.build_with_rng(&mut rng);
World::print_map_metrics(&map);
World::new(width, height, map)
}
pub fn new_voronoi(width: u32, height: u32, seed: u32) -> World {
World::print_map_info(format!("Voronoi Hive with the seed: {}", seed));
let mut rng = StdRng::seed_from_u64(seed as u64);
let map = MapBuilder::new(width as usize, height as usize)
.with(VoronoiHive::new())
.with(AreaStartingPosition::new(XStart::LEFT, YStart::TOP))
.with(DistantExit::new())
.build_with_rng(&mut rng);
World::print_map_metrics(&map);
World::new(width, height, map)
}
pub fn new_random(width: u32, height: u32, seed: u32) -> World {
let mut rng = rand::thread_rng();
let px = rng.gen::<f32>();
if px < 1.0/6.0 {
World::new_cellular_automata(width, height, seed)
} else if px < 2.0/6.0 {
World::new_simple_rooms(width, height, seed)
} else if px < 3.0/6.0 {
World::new_drunkard(width, height, seed)
} else if px < 4.0/6.0 {
World::new_bsp_rooms(width, height, seed)
} else if px < 5.0/6.0 {
World::new_bsp_rooms(width, height, seed)
} else {
World::new_maze(width, height, seed)
}
}
pub fn width(&self) -> u32 {
self.width
}
pub fn height(&self) -> u32 {
self.height
}
pub fn tiles(&self) -> *const Cell {
self.tiles.as_ptr()
}
pub fn player_pos(&self) -> Position {
let p = self.map.starting_point.unwrap_or(Point::new(0, 0));
Position { col: p.x, row: p.y }
}
pub fn exit_pos(&self) -> Position {
let p = self.map.exit_point.unwrap_or(Point::new(0, 0));
Position { col: p.x, row: p.y }
}
fn print_map_info(info: String) {
let window = web_sys::window().expect("no global `window` exists");
let document = window.document().expect("should have a document on window");
let div = document.get_element_by_id("map-info").expect("Need div with id: map-info");
div.set_inner_html(&info);
}
fn print_map_metrics(map: &Map<NoData>) {
let window = web_sys::window().expect("no global `window` exists");
let document = window.document().expect("should have a document on window");
let div = document.get_element_by_id("map-metrics").expect("Need div with id: map-metrics");
let density = metric::density(map);
let path_length = metric::path_length(map);
let info = format!("Metrics: density: {}, path length: {}", density, path_length);
div.set_inner_html(&info);
}
}
#[wasm_bindgen]
impl Position {
pub fn new(col: usize, row: usize) -> Position {
Position { col, row }
}
pub fn col(&self) -> usize {
self.col
}
pub fn row(&self) -> usize {
self.row
}
}

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demo/src/utils.rs
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pub fn set_panic_hook() {
// When the `console_error_panic_hook` feature is enabled, we can call the
// `set_panic_hook` function at least once during initialization, and then
// we will get better error messages if our code ever panics.
//
// For more details see
// https://github.com/rustwasm/console_error_panic_hook#readme
#[cfg(feature = "console_error_panic_hook")]
console_error_panic_hook::set_once();
}

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node_modules
dist
.bin/
package-lock.json

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// A dependency graph that contains any wasm must all be imported
// asynchronously. This `bootstrap.js` file does the single async import, so
// that no one else needs to worry about it again.
import("./index.js")
.catch(e => console.error("Error importing `index.js`:", e));

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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<link rel="icon" type="image/png" href="assets/favicon.ico" />
<title>Mapgen demo</title>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css"
integrity="sha384-JcKb8q3iqJ61gNV9KGb8thSsNjpSL0n8PARn9HuZOnIxN0hoP+VmmDGMN5t9UJ0Z" crossorigin="anonymous">
<style>
body {
background-color: lightgrey;
}
canvas {
padding-left: 0;
padding-right: 0;
margin-left: auto;
margin-right: auto;
display: block;
}
</style>
<script src="./bootstrap.js"></script>
</head>
<body>
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<a class="navbar-brand" href="#">Mapgen demo</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent"
aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="mx-auto" id="navbarSupportedContent">
<ul class="navbar-nav">
<span class="navbar-text mr-2">Generator</span>
<li class="nav-item dropdown">
<button class="btn btn-secondary dropdown-toggle mr-2" type="button" id="generatorDropdown"
data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
Random
</button>
<div class="dropdown-menu" aria-labelledby="generatorDropdown">
<a class="dropdown-item" id="cellular-automata-option">Cellular Automata</a>
<a class="dropdown-item" id="simple-rooms-option">Simple Rooms</a>
<a class="dropdown-item" id="bsp-rooms-option">BSP Rooms</a>
<a class="dropdown-item" id="bsp-interior-option">BSP Interior</a>
<a class="dropdown-item" id="drunkard-option">Drunkard Walk</a>
<a class="dropdown-item" id="maze-option">Maze</a>
<a class="dropdown-item" id="voronoi-option">Voronoi Hive</a>
<a class="dropdown-item" id="random-option">Random</a>
</div>
</li>
<span class="navbar-text mr-2">Seed</span>
<input class="form-control mr-sm-2 w-25" id="seed" type="search" placeholder="random" aria-label="Seed">
<button class="btn btn-outline-success my-2 my-sm-0" type="submit" id="refresh">Refresh</button>
</ul>
</div>
<a class="github-button" href="https://github.com/klangner/mapgen.rs" data-icon="octicon-star"
aria-label="Star ntkme/github-buttons on GitHub">Star</a>
</nav>
<canvas id="mapgen-canvas"></canvas>
<div id="map-info" style="text-align: center"></div>
<div id="map-metrics" style="text-align: center"></div>
<script src="https://code.jquery.com/jquery-3.5.1.slim.min.js"
integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.1/dist/umd/popper.min.js"
integrity="sha384-9/reFTGAW83EW2RDu2S0VKaIzap3H66lZH81PoYlFhbGU+6BZp6G7niu735Sk7lN" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js"
integrity="sha384-B4gt1jrGC7Jh4AgTPSdUtOBvfO8shuf57BaghqFfPlYxofvL8/KUEfYiJOMMV+rV" crossorigin="anonymous"></script>
<script async defer src="https://buttons.github.io/buttons.js"></script>
</body>
</html>

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demo/www/index.js
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import {Cell, World} from "mapgen-demo";
import { memory } from "mapgen-demo/mapgen_demo_bg";
const CANVAS_SIZE = 750;
const GRID_COLS = 80;
const GRID_ROWS = 50;
const CELL_SIZE = CANVAS_SIZE/GRID_ROWS;
const TILE_SIZE = 39;
// Init canvas
const canvas = document.getElementById("mapgen-canvas");
canvas.height = CELL_SIZE * GRID_ROWS;
canvas.width = CELL_SIZE * GRID_COLS;
const ctx = canvas.getContext('2d');
// Info box
const infoDiv = document.getElementById('map-info');
// API to the WASM
let world = null;
// Load tiles bitmap
let tiles_image = new Image();
tiles_image.src = 'assets/tiles.png';
// Take provided seed or generate new one
function get_seed() {
var seed_text = document.getElementById("seed").value;
if( seed_text.length > 0) {
return Number(seed_text);
}
return Date.now();
}
function setGenerator(e) {
document.getElementById("generatorDropdown").innerHTML = e.target.innerText;
}
// Map generators
function refreshMap() {
var generator_name = document.getElementById("generatorDropdown").innerHTML;
switch(generator_name){
case "Cellular Automata":
world = World.new_cellular_automata(GRID_COLS, GRID_ROWS, get_seed());
break;
case "Simple Rooms":
world = World.new_simple_rooms(GRID_COLS, GRID_ROWS, get_seed());
break;
case "BSP Rooms":
world = World.new_bsp_rooms(GRID_COLS, GRID_ROWS, get_seed());
break;
case "BSP Interior":
world = World.new_bsp_interior(GRID_COLS, GRID_ROWS, get_seed());
break;
case "Drunkard Walk":
world = World.new_drunkard(GRID_COLS, GRID_ROWS, get_seed());
break;
case "Maze":
world = World.new_maze(GRID_COLS, GRID_ROWS, get_seed());
break;
case "Voronoi Hive":
world = World.new_voronoi(GRID_COLS, GRID_ROWS, get_seed());
break;
default:
world = World.new_random(GRID_COLS, GRID_ROWS, get_seed());
}
requestAnimationFrame(renderLoop);
}
// Main loop
function renderLoop() {
// universe.tick();
drawCells();
requestAnimationFrame(renderLoop);
};
const getIndex = (row, column) => {
return row * GRID_COLS + column;
};
const is_inner_wall = (tiles, col, row) => {
for (let c = Math.max(col - 1, 0); c < Math.min(col + 2, GRID_COLS); c++) {
for (let r = Math.max(row - 1, 0); r < Math.min(row + 2, GRID_ROWS); r++) {
if ((c != col || r != row) && tiles[getIndex(r, c)] == Cell.Floor) {
return false;
}
}
}
return true;
}
const draw_tile = (ctx, row, col, tile_type) => {
var tile_x = 0;
var tile_y = 0;
if (tile_type == "floor") {
tile_x = 3;
tile_y = 2;
} else if (tile_type == "wall") {
tile_x = 0;
tile_y = 3;
} else if (tile_type == "player") {
tile_x = 0;
tile_y = 8;
} else if (tile_type == "exit") {
tile_x = 10;
tile_y = 1;
} else {
tile_x = 18;
tile_y = 0;
}
ctx.drawImage(
tiles_image,
tile_x * TILE_SIZE + 3,
tile_y * TILE_SIZE + 3,
TILE_SIZE - 3,
TILE_SIZE - 3,
col * CELL_SIZE,
row * CELL_SIZE,
CELL_SIZE,
CELL_SIZE);
}
const drawCells = () => {
const tilesPtr = world.tiles();
const tiles = new Uint8Array(memory.buffer, tilesPtr, GRID_COLS * GRID_ROWS);
// tiles
for (let row = 0; row < GRID_ROWS; row++) {
for (let col = 0; col < GRID_COLS; col++) {
const idx = getIndex(row, col);
if (tiles[idx] == Cell.Floor) {
draw_tile(ctx, row, col, "floor");
} else if (is_inner_wall(tiles, col, row)){
draw_tile(ctx, row, col, "inner-wall");
} else {
draw_tile(ctx, row, col, "wall");
}
}
}
// Player position
let player = world.player_pos();
draw_tile(ctx, player.row(), player.col(), "player");
// Exit position
let exit = world.exit_pos();
draw_tile(ctx, exit.row(), exit.col(), "exit");
};
// Connect UI element
document.getElementById('cellular-automata-option').addEventListener('click', setGenerator);
document.getElementById('simple-rooms-option').addEventListener('click', setGenerator);
document.getElementById('bsp-rooms-option').addEventListener('click', setGenerator);
document.getElementById('drunkard-option').addEventListener('click', setGenerator);
document.getElementById('bsp-interior-option').addEventListener('click', setGenerator);
document.getElementById('maze-option').addEventListener('click', setGenerator);
document.getElementById('voronoi-option').addEventListener('click', setGenerator);
document.getElementById('random-option').addEventListener('click', setGenerator);
document.getElementById('refresh').addEventListener('click', refreshMap);
refreshMap();

41
demo/www/package.json
View File

@ -1,41 +0,0 @@
{
"name": "create-wasm-app",
"version": "0.1.0",
"description": "create an app to consume rust-generated wasm packages",
"main": "index.js",
"bin": {
"create-wasm-app": ".bin/create-wasm-app.js"
},
"scripts": {
"build": "webpack --config webpack.config.js",
"server": "webpack-dev-server",
"deploy": "gh-pages -d dist"
},
"repository": {
"type": "git",
"url": "git+https://github.com/rustwasm/create-wasm-app.git"
},
"keywords": [
"webassembly",
"wasm",
"rust",
"webpack"
],
"author": "Ashley Williams <ashley666ashley@gmail.com>",
"license": "(MIT OR Apache-2.0)",
"bugs": {
"url": "https://github.com/rustwasm/create-wasm-app/issues"
},
"homepage": "https://github.com/rustwasm/create-wasm-app#readme",
"dependencies": {
"gh-pages": "^3.1.0",
"mapgen-demo": "file:../pkg"
},
"devDependencies": {
"hello-wasm-pack": "^0.1.0",
"webpack": "^4.29.3",
"webpack-cli": "^3.1.0",
"webpack-dev-server": "^3.1.5",
"copy-webpack-plugin": "^5.0.0"
}
}

14
demo/www/webpack.config.js
View File

@ -1,14 +0,0 @@
const CopyWebpackPlugin = require("copy-webpack-plugin");
const path = require('path');
module.exports = {
entry: "./bootstrap.js",
output: {
path: path.resolve(__dirname, "../../docs"),
filename: "bootstrap.js",
},
mode: "development",
plugins: [
new CopyWebpackPlugin(['index.html', { from: 'assets', to: 'assets' }])
],
};