130 lines
4.2 KiB
Rust
130 lines
4.2 KiB
Rust
use wasm_bindgen::prelude::*;
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use web_sys;
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use rand::prelude::*;
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use mapgen::{
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map_builder::{
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MapBuilder,
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cellular_automata::CellularAutomataGen,
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simple_rooms::SimpleRoomsGen,
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bsp_interior::BspInteriorGen,
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starting_point::{AreaStartingPosition, XStart, YStart},
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cull_unreachable::CullUnreachable,
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distant_exit::DistantExit,
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rooms_corridors_nearest::NearestCorridors,
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drunkard::DrunkardsWalkGen,
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},
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map::TileType,
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};
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#[wasm_bindgen]
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#[repr(u8)]
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#[derive(Clone, Copy, Debug, PartialEq, Eq)]
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pub enum Cell {
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Floor = 0,
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Wall = 1,
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}
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#[wasm_bindgen]
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pub struct World {
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width: u32,
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height: u32,
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tiles: Vec<Cell>,
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}
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#[wasm_bindgen]
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impl World {
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pub fn new_cellular_automata(width: u32, height: u32, seed: u32) -> World {
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World::print_map_info(format!("Cellular Automata with the seed: {}", seed));
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let mut rng = StdRng::seed_from_u64(seed as u64);
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let map = MapBuilder::new(CellularAutomataGen::new())
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.with(AreaStartingPosition::new(XStart::CENTER, YStart::CENTER))
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.with(CullUnreachable::new())
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.with(DistantExit::new())
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.build_map_with_rng(width as usize, height as usize, &mut rng);
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let tiles = (0..map.tiles.len())
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.map(|i| if map.tiles[i] == TileType::Floor {Cell::Floor} else {Cell::Wall})
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.collect();
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World {
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width,
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height,
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tiles }
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}
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pub fn new_simple_rooms(width: u32, height: u32, seed: u32) -> World {
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World::print_map_info(format!("Simple Rooms with the seed: {}", seed));
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let mut rng = StdRng::seed_from_u64(seed as u64);
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let map = MapBuilder::new(SimpleRoomsGen::new())
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.with(NearestCorridors::new())
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.build_map_with_rng(width as usize, height as usize, &mut rng);
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let tiles = (0..map.tiles.len())
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.map(|i| if map.tiles[i] == TileType::Floor {Cell::Floor} else {Cell::Wall})
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.collect();
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World {
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width,
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height,
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tiles }
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}
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pub fn new_bsp_interior(width: u32, height: u32, seed: u32) -> World {
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World::print_map_info(format!("BSP Interior with the seed: {}", seed));
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let mut rng = StdRng::seed_from_u64(seed as u64);
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let map = MapBuilder::new(BspInteriorGen::new())
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.build_map_with_rng(width as usize, height as usize, &mut rng);
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let tiles = (0..map.tiles.len())
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.map(|i| if map.tiles[i] == TileType::Floor {Cell::Floor} else {Cell::Wall})
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.collect();
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World {
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width,
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height,
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tiles }
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}
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pub fn new_drunkard(width: u32, height: u32, seed: u32) -> World {
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World::print_map_info(format!("Drunkard with the seed: {}", seed));
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let mut rng = StdRng::seed_from_u64(seed as u64);
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let map = MapBuilder::new(DrunkardsWalkGen::open_halls())
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.build_map_with_rng(width as usize, height as usize, &mut rng);
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let tiles = (0..map.tiles.len())
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.map(|i| if map.tiles[i] == TileType::Floor {Cell::Floor} else {Cell::Wall})
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.collect();
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World {
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width,
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height,
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tiles }
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}
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pub fn new_random(width: u32, height: u32, seed: u32) -> World {
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let mut rng = rand::thread_rng();
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let px = rng.gen::<f32>();
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if px < 0.25 {
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World::new_cellular_automata(width, height, seed)
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} else if px < 0.5 {
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World::new_simple_rooms(width, height, seed)
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} else if px < 0.75 {
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World::new_drunkard(width, height, seed)
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} else {
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World::new_bsp_interior(width, height, seed)
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}
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}
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pub fn width(&self) -> u32 {
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self.width
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}
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pub fn height(&self) -> u32 {
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self.height
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}
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pub fn tiles(&self) -> *const Cell {
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self.tiles.as_ptr()
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}
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fn print_map_info(info: String) {
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let window = web_sys::window().expect("no global `window` exists");
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let document = window.document().expect("should have a document on window");
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let div = document.get_element_by_id("map-info").expect("Need div with id: map-info");
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div.set_inner_html(&info);
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}
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} |