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cargo fmt

This commit is contained in:
Nolan Darilek 2022-03-12 14:31:30 -06:00
parent efad0132ff
commit ffaad6cf48
22 changed files with 509 additions and 422 deletions
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5
examples/bsp_interior.rs
View File

@ -1,10 +1,9 @@
use rand::prelude::*;
use mapgen::*;
use rand::prelude::*;
fn main() {
let mut rng = StdRng::seed_from_u64(907647352);
let gen = BspInterior::<NoData>::new();
let map = gen.modify_map(&mut rng, &Map::new(20, 10));
println!("{:}", &map);
}
}

11
examples/bsp_rooms.rs
View File

@ -1,12 +1,13 @@
use std::time::{SystemTime, UNIX_EPOCH};
use rand::prelude::*;
use mapgen::*;
use rand::prelude::*;
use std::time::{SystemTime, UNIX_EPOCH};
fn main() {
let system_time = SystemTime::now().duration_since(UNIX_EPOCH).expect("Can't access system time");
let system_time = SystemTime::now()
.duration_since(UNIX_EPOCH)
.expect("Can't access system time");
let mut rng = StdRng::seed_from_u64(system_time.as_millis() as u64);
let gen = BspRooms::<NoData>::new();
let map = gen.modify_map(&mut rng, &Map::new(80, 50));
println!("{:}", &map);
}
}

19
examples/example1.rs
View File

@ -1,24 +1,17 @@
use mapgen::{
MapBuilder,
NoData,
filter::{
NoiseGenerator,
CellularAutomata,
CullUnreachable,
AreaStartingPosition,
XStart,
YStart,
AreaStartingPosition, CellularAutomata, CullUnreachable, NoiseGenerator, XStart, YStart,
},
MapBuilder, NoData,
};
fn main() {
let map = MapBuilder::<NoData>::new(20, 20)
.with(NoiseGenerator::uniform())
.with(CellularAutomata::new())
.with(AreaStartingPosition::new(XStart::CENTER, YStart::CENTER))
.with(CullUnreachable::new())
.build();
println!("{:}", &map);
}
.build();
println!("{:}", &map);
}

59
src/dijkstra.rs
View File

@ -1,10 +1,10 @@
//! Calculate Dijkstra influence map
//!
//!
//! http://www.roguebasin.com/index.php?title=The_Incredible_Power_of_Dijkstra_Maps
//!
//!
//! This algorithm calculates cost (distance) of moving from the given starting point
//! to the each point on the map. Point which are not reachable will get f32::MAX value.
//!
//!
//! Example generator usage:
//! ---
//! use rand::prelude::*;
@ -14,21 +14,20 @@
//! map::{Map, TileType},
//! starting_point::{AreaStartingPosition, XStart, YStart}
//! };
//!
//!
//! let mut rng = StdRng::seed_from_u64(100);
//! let mut map = Map::new(80, 50);
//! map.set_tile(10, 10, TileType::Floor);
//! let modifier = AreaStartingPosition::new(XStart::LEFT, YStart::TOP);
//! let new_map = modifier.modify_map(&mut rng, &map);
//!
//!
//! assert_eq!(new_map.starting_point, Some(Point::new(10, 10)));
//! ---
//!
//!
use std::{collections::VecDeque, marker::PhantomData};
use std::f32::MAX;
use super::map::{BuilderData, Map};
use std::f32::MAX;
use std::{collections::VecDeque, marker::PhantomData};
/// Representation of a Dijkstra flow map.
/// map is a vector of floats, having a size equal to size_x * size_y (one per tile).
@ -43,9 +42,9 @@ pub struct DijkstraMap<D> {
}
impl<D: BuilderData> DijkstraMap<D> {
//! Construct a new Dijkstra map, ready to run.
//! Construct a new Dijkstra map, ready to run.
pub fn new(map: &Map<D>) -> DijkstraMap<D> {
let len = map.width * map.height;
let len = map.width * map.height;
let tiles = vec![MAX; len];
let mut d = DijkstraMap {
tiles: tiles,
@ -79,8 +78,12 @@ impl<D: BuilderData> DijkstraMap<D> {
let idx = self.xy_idx(x, y);
let new_depth = depth + add_depth;
let prev_depth = self.tiles[idx];
if new_depth >= prev_depth { continue; }
if new_depth >= self.max_depth { continue; }
if new_depth >= prev_depth {
continue;
}
if new_depth >= self.max_depth {
continue;
}
self.tiles[idx] = new_depth;
open_list.push_back(((x, y), new_depth));
}
@ -88,7 +91,7 @@ impl<D: BuilderData> DijkstraMap<D> {
}
fn xy_idx(&self, x: usize, y: usize) -> usize {
(y * self.size_x ) + x
(y * self.size_x) + x
}
}
@ -112,13 +115,19 @@ mod tests {
map.starting_point = Some(Point::new(8, 1));
let dm = DijkstraMap::new(&map);
println!("{:?}", &dm.tiles.iter().map(|&v| if v == f32::MAX {9.0} else {v}).collect::<Vec<f32>>());
println!(
"{:?}",
&dm.tiles
.iter()
.map(|&v| if v == f32::MAX { 9.0 } else { v })
.collect::<Vec<f32>>()
);
assert_eq!(dm.size_x, 10);
assert_eq!(dm.size_y, 3);
for i in 0..10 {
assert_eq!(dm.tiles[i], MAX);
assert_eq!(dm.tiles[2*dm.size_x + i], MAX);
assert_eq!(dm.tiles[2 * dm.size_x + i], MAX);
let idx = dm.size_x + i;
if i < 3 || i == 9 {
assert_eq!(dm.tiles[idx], MAX);
@ -139,10 +148,9 @@ mod tests {
let mut map = Map::<NoData>::from_string(map_str);
map.starting_point = Some(Point::new(2, 2));
let dm = DijkstraMap::new(&map);
let expected = [MAX, MAX, MAX, MAX,
MAX, 1.45, 1.0, MAX,
MAX, 1.0, 0.0, MAX,
MAX, MAX, MAX, MAX];
let expected = [
MAX, MAX, MAX, MAX, MAX, 1.45, 1.0, MAX, MAX, 1.0, 0.0, MAX, MAX, MAX, MAX, MAX,
];
assert_eq!(dm.tiles, expected);
}
@ -158,13 +166,14 @@ mod tests {
let mut map = Map::<NoData>::from_string(map_str);
map.starting_point = Some(Point::new(8, 2));
let dm = DijkstraMap::new(&map);
let expected = [MAX, MAX, MAX, MAX, MAX, MAX, MAX, MAX, MAX, MAX,
MAX, 7.45, 6.45, 5.45, 4.45, 3.45, 2.45, 1.45, 1.0, MAX,
MAX, 7.9, 6.9, MAX, 4.0, 3.0, 2.0, 1.0, 0.0, MAX,
MAX, MAX, MAX, MAX, MAX, MAX, MAX, MAX, MAX, MAX];
let expected = [
MAX, MAX, MAX, MAX, MAX, MAX, MAX, MAX, MAX, MAX, MAX, 7.45, 6.45, 5.45, 4.45, 3.45,
2.45, 1.45, 1.0, MAX, MAX, 7.9, 6.9, MAX, 4.0, 3.0, 2.0, 1.0, 0.0, MAX, MAX, MAX, MAX,
MAX, MAX, MAX, MAX, MAX, MAX, MAX,
];
for (v, e) in dm.tiles.iter().zip(expected.iter()) {
assert!(f32::abs(v - e) <= 0.01);
}
}
}
}

72
src/filter/bsp_interior.rs
View File

@ -1,8 +1,8 @@
//! Random rooms map generator.
//!
//! Try to generate rooms of different size to fill the map area.
//!
//! Try to generate rooms of different size to fill the map area.
//! Rooms will not overlap.
//!
//!
//! Example generator usage:
//! ```
//! use rand::prelude::*;
@ -10,24 +10,23 @@
//! use mapgen::filter::{
//! BspInterior
//! };
//!
//!
//! let mut rng = StdRng::seed_from_u64(100);
//! let gen = BspInterior::<NoData>::new();
//! let map = gen.modify_map(&mut rng, &Map::new(80, 50));
//!
//!
//! assert_eq!(map.width, 80);
//! assert_eq!(map.height, 50);
//! ```
//!
//!
use std::marker::PhantomData;
use rand::prelude::*;
use crate::{BuilderData, MapFilter};
use crate::geometry::{Point, Rect};
use crate::random::Rng;
use crate::Map;
use crate::{BuilderData, MapFilter};
use rand::prelude::*;
pub struct BspInterior<D: BuilderData> {
min_room_size: usize,
@ -41,9 +40,8 @@ impl<D: BuilderData> MapFilter<D> for BspInterior<D> {
}
impl<D: BuilderData> BspInterior<D> {
pub fn new() -> Box<BspInterior<D>> {
Box::new(BspInterior{
Box::new(BspInterior {
min_room_size: 8,
phantom: PhantomData,
})
@ -52,10 +50,10 @@ impl<D: BuilderData> BspInterior<D> {
fn build(&self, rng: &mut StdRng, map: &Map<D>) -> Map<D> {
let mut new_map = map.clone();
let mut rects: Vec<Rect> = Vec::new();
rects.push( Rect::new(1, 1, new_map.width-2, new_map.height-2) );
rects.push(Rect::new(1, 1, new_map.width - 2, new_map.height - 2));
let first_room = rects[0];
// Divide the first room
self.add_subrects(first_room, rng, &mut rects);
self.add_subrects(first_room, rng, &mut rects);
let rooms_copy = rects.clone();
for r in rooms_copy.iter() {
@ -64,9 +62,9 @@ impl<D: BuilderData> BspInterior<D> {
}
// Now we want corridors
for i in 0..new_map.rooms.len()-1 {
for i in 0..new_map.rooms.len() - 1 {
let room = new_map.rooms[i];
let next_room = new_map.rooms[i+1];
let next_room = new_map.rooms[i + 1];
let start_x = rng.random_range(room.x1, room.x2);
let start_y = rng.random_range(room.y1, room.y2);
let end_x = rng.random_range(next_room.x1, next_room.x2);
@ -74,7 +72,7 @@ impl<D: BuilderData> BspInterior<D> {
new_map.add_corridor(Point::new(start_x, start_y), Point::new(end_x, end_y));
}
new_map
new_map
}
fn add_subrects(&self, rect: Rect, rng: &mut StdRng, rects: &mut Vec<Rect>) {
@ -84,7 +82,7 @@ impl<D: BuilderData> BspInterior<D> {
}
// Calculate boundaries
let width = rect.x2 - rect.x1;
let width = rect.x2 - rect.x1;
let height = rect.y2 - rect.y1;
let half_width = width / 2;
let half_height = height / 2;
@ -93,46 +91,52 @@ impl<D: BuilderData> BspInterior<D> {
if split <= 2 {
// Horizontal split
let h1 = Rect::new( rect.x1, rect.y1, half_width-1, height );
rects.push( h1 );
if half_width > self.min_room_size { self.add_subrects(h1, rng, rects); }
let h2 = Rect::new( rect.x1 + half_width, rect.y1, half_width, height );
rects.push( h2 );
if half_width > self.min_room_size { self.add_subrects(h2, rng, rects); }
let h1 = Rect::new(rect.x1, rect.y1, half_width - 1, height);
rects.push(h1);
if half_width > self.min_room_size {
self.add_subrects(h1, rng, rects);
}
let h2 = Rect::new(rect.x1 + half_width, rect.y1, half_width, height);
rects.push(h2);
if half_width > self.min_room_size {
self.add_subrects(h2, rng, rects);
}
} else {
// Vertical split
let v1 = Rect::new( rect.x1, rect.y1, width, half_height-1 );
let v1 = Rect::new(rect.x1, rect.y1, width, half_height - 1);
rects.push(v1);
if half_height > self.min_room_size { self.add_subrects(v1, rng, rects); }
let v2 = Rect::new( rect.x1, rect.y1 + half_height, width, half_height );
if half_height > self.min_room_size {
self.add_subrects(v1, rng, rects);
}
let v2 = Rect::new(rect.x1, rect.y1 + half_height, width, half_height);
rects.push(v2);
if half_height > self.min_room_size { self.add_subrects(v2, rng, rects); }
if half_height > self.min_room_size {
self.add_subrects(v2, rng, rects);
}
}
}
}
/// ------------------------------------------------------------------------------------------------
/// Module unit tests
/// ------------------------------------------------------------------------------------------------
#[cfg(test)]
mod tests {
use super::*;
use crate::{Map, map::NoData};
use crate::{map::NoData, Map};
#[test]
fn no_corridors_on_borders() {
let mut rng = StdRng::seed_from_u64(907647352);
let mut rng = StdRng::seed_from_u64(907647352);
let gen = BspInterior::<NoData>::new();
let map = gen.modify_map(&mut rng, &Map::new(80, 50));
for i in 0..80 {
assert!(map.at(i, 0).is_blocked());
assert!(map.at(i, 49).is_blocked());
}
}
for j in 0..50 {
assert!(map.at(0, j).is_blocked());
assert!(map.at(79, j).is_blocked());
}
}
}
}
}

87
src/filter/bsp_rooms.rs
View File

@ -1,32 +1,31 @@
//! Random rooms map generator.
//!
//! Try to generate rooms of different size to fill the map area.
//!
//! Try to generate rooms of different size to fill the map area.
//! Rooms will not overlap.
//!
//!
//! Example generator usage:
//! ```
//! use rand::prelude::*;
//! use mapgen::{Map, MapFilter, NoData};
//! use mapgen::filter::BspRooms;
//!
//!
//! let mut rng = StdRng::seed_from_u64(100);
//! let gen = BspRooms::<NoData>::new();
//! let map = gen.modify_map(&mut rng, &Map::new(80, 50));
//!
//!
//! assert_eq!(map.width, 80);
//! assert_eq!(map.height, 50);
//! ```
//!
//!
use std::marker::PhantomData;
use rand::prelude::*;
use crate::BuilderData;
use crate::MapFilter;
use crate::geometry::Rect;
use crate::random::Rng;
use crate::BuilderData;
use crate::Map;
use crate::MapFilter;
use rand::prelude::*;
pub struct BspRooms<D: BuilderData> {
max_split: usize,
@ -34,7 +33,7 @@ pub struct BspRooms<D: BuilderData> {
}
impl<D: BuilderData> MapFilter<D> for BspRooms<D> {
fn modify_map(&self, rng: &mut StdRng, map: &Map<D>) -> Map<D> {
fn modify_map(&self, rng: &mut StdRng, map: &Map<D>) -> Map<D> {
self.build_rooms(map, rng)
}
}
@ -47,11 +46,11 @@ impl<D: BuilderData> BspRooms<D> {
})
}
fn build_rooms(&self, map: &Map<D>, rng : &mut StdRng) -> Map<D> {
fn build_rooms(&self, map: &Map<D>, rng: &mut StdRng) -> Map<D> {
let mut new_map = map.clone();
let mut rects: Vec<Rect> = Vec::new();
// Start with a single map-sized rectangle
rects.push( Rect::new(2, 2, new_map.width-5, new_map.height-5) );
rects.push(Rect::new(2, 2, new_map.width - 5, new_map.height - 5));
let first_room = rects[0];
rects.append(&mut self.split_into_subrects(first_room)); // Divide the first room
@ -77,16 +76,33 @@ impl<D: BuilderData> BspRooms<D> {
let half_width = usize::max(width / 2, 1);
let half_height = usize::max(height / 2, 1);
rects.push(Rect::new( rect.x1, rect.y1, half_width, half_height ));
rects.push(Rect::new( rect.x1, rect.y1 + half_height, half_width, half_height ));
rects.push(Rect::new( rect.x1 + half_width, rect.y1, half_width, half_height ));
rects.push(Rect::new( rect.x1 + half_width, rect.y1 + half_height, half_width, half_height ));
rects.push(Rect::new(rect.x1, rect.y1, half_width, half_height));
rects.push(Rect::new(
rect.x1,
rect.y1 + half_height,
half_width,
half_height,
));
rects.push(Rect::new(
rect.x1 + half_width,
rect.y1,
half_width,
half_height,
));
rects.push(Rect::new(
rect.x1 + half_width,
rect.y1 + half_height,
half_width,
half_height,
));
rects
}
fn get_random_rect(&self, rng : &mut StdRng, rects: &Vec<Rect>) -> Rect {
if rects.len() == 1 { return rects[0]; }
fn get_random_rect(&self, rng: &mut StdRng, rects: &Vec<Rect>) -> Rect {
if rects.len() == 1 {
return rects[0];
}
let idx = rng.random_range(0, rects.len());
rects[idx]
}
@ -117,15 +133,25 @@ impl<D: BuilderData> BspRooms<D> {
let mut can_build = true;
for r in map.rooms.iter() {
if r.intersect(&rect) { can_build = false; }
if r.intersect(&rect) {
can_build = false;
}
}
for y in expanded.y1 ..= expanded.y2 {
for x in expanded.x1 ..= expanded.x2 {
if x > map.width - 2 { can_build = false; }
if y > map.height - 2 { can_build = false; }
if x < 1 { can_build = false; }
if y < 1 { can_build = false; }
for y in expanded.y1..=expanded.y2 {
for x in expanded.x1..=expanded.x2 {
if x > map.width - 2 {
can_build = false;
}
if y > map.height - 2 {
can_build = false;
}
if x < 1 {
can_build = false;
}
if y < 1 {
can_build = false;
}
if can_build {
if map.at(x as usize, y as usize).is_walkable() {
can_build = false;
@ -148,17 +174,16 @@ mod tests {
#[test]
fn no_corridors_on_borders() {
let mut rng = StdRng::seed_from_u64(907647352);
let mut rng = StdRng::seed_from_u64(907647352);
let gen = BspRooms::<NoData>::new();
let map = gen.modify_map(&mut rng, &Map::new(80, 50));
for i in 0..80 {
assert!(map.at(i, 0).is_blocked());
assert!(map.at(i, 49).is_blocked());
}
}
for j in 0..50 {
assert!(map.at(0, j).is_blocked());
assert!(map.at(79, j).is_blocked());
}
}
}
}
}

46
src/filter/cellular_automata.rs
View File

@ -1,33 +1,32 @@
//! Cellular automata map filter.
//!
//!
//! Check this [article](http://www.roguebasin.com/index.php?title=Cellular_Automata_Method_for_Generating_Random_Cave-Like_Levels)
//! for more information about the algorithm behind this generator.
//!
//!
//! This algorithm requires that map first is filtered with some noise.
//! For example `UniformNoise`. It can also be apply to any other non empty map.
//!
//!
//! Example usage:
//! ```
//! use rand::prelude::*;
//! use mapgen::{Map, MapFilter, NoData};
//! use mapgen::filter::CellularAutomata;
//!
//!
//! let mut rng = StdRng::seed_from_u64(100);
//! let gen = CellularAutomata::<NoData>::new();
//! let map = gen.modify_map(&mut rng, &Map::new(80, 50));
//!
//!
//! assert_eq!(map.width, 80);
//! assert_eq!(map.height, 50);
//! ```
//!
//!
use std::marker::PhantomData;
use rand::prelude::*;
use crate::BuilderData;
use crate::MapFilter;
use crate::{Map, Tile};
use rand::prelude::*;
/// Map filter
pub struct CellularAutomata<D: BuilderData> {
@ -36,7 +35,7 @@ pub struct CellularAutomata<D: BuilderData> {
}
impl<D: BuilderData> MapFilter<D> for CellularAutomata<D> {
fn modify_map(&self, _rng: &mut StdRng, map: &Map<D>) -> Map<D> {
fn modify_map(&self, _rng: &mut StdRng, map: &Map<D>) -> Map<D> {
self.build(map)
}
}
@ -59,26 +58,31 @@ impl<D: BuilderData> CellularAutomata<D> {
new_map
}
}
fn apply_iteration<D: BuilderData>(map: &Map<D>) -> Map<D> {
let mut new_map = map.clone();
for y in 1..map.height-1 {
for x in 1..map.width-1 {
for y in 1..map.height - 1 {
for x in 1..map.width - 1 {
let idxs = [
(x-1, y-1), (x, y-1), (x+1, y-1),
(x-1, y), (x+1, y),
(x-1, y+1), (x, y+1), (x+1, y+1)];
let neighbors = idxs.iter()
(x - 1, y - 1),
(x, y - 1),
(x + 1, y - 1),
(x - 1, y),
(x + 1, y),
(x - 1, y + 1),
(x, y + 1),
(x + 1, y + 1),
];
let neighbors = idxs
.iter()
.filter(|(x, y)| map.at(*x, *y).is_blocked())
.count();
if neighbors > 4 || neighbors == 0 {
new_map.set_tile(x, y, Tile::wall())
}
else {
} else {
new_map.set_tile(x, y, Tile::floor());
}
}
@ -103,7 +107,6 @@ mod tests {
assert!(new_map.at(1, 1).is_blocked());
}
#[test]
fn test_iteration_floor() {
let mut map = Map::<NoData>::new(3, 3);
@ -115,5 +118,4 @@ mod tests {
let new_map = apply_iteration(&map);
assert!(new_map.at(1, 1).is_walkable());
}
}
}

18
src/filter/cull_unreachable.rs
View File

@ -1,16 +1,15 @@
//! Remove unreachable areas from the map.
//!
//!
//! This modifier reiquires starting position on the map.
//! It will add wall on every tile which is not accessible from the starting point.
//!
//!
use std::marker::PhantomData;
use rand::prelude::StdRng;
use crate::dijkstra::DijkstraMap;
use crate::MapFilter;
use crate::{BuilderData, Map, Tile};
use crate::dijkstra::DijkstraMap;
use rand::prelude::StdRng;
/// Remove unreachable areas from the map.
pub struct CullUnreachable<D: BuilderData> {
@ -18,7 +17,7 @@ pub struct CullUnreachable<D: BuilderData> {
}
impl<D: BuilderData> MapFilter<D> for CullUnreachable<D> {
fn modify_map(&self, _: &mut StdRng, map: &Map<D>) -> Map<D> {
fn modify_map(&self, _: &mut StdRng, map: &Map<D>) -> Map<D> {
self.build(map)
}
}
@ -53,11 +52,11 @@ impl<D: BuilderData> CullUnreachable<D> {
/// ------------------------------------------------------------------------------------------------
#[cfg(test)]
mod tests {
use rand::prelude::*;
use super::*;
use super::MapFilter;
use super::*;
use crate::geometry::Point;
use crate::map::{Map, NoData};
use rand::prelude::*;
#[test]
fn test_culling() {
@ -75,11 +74,10 @@ mod tests {
";
let expected_map = Map::<NoData>::from_string(expected_map_str);
let modifier = CullUnreachable::new();
let mut rng = StdRng::seed_from_u64(0);
let new_map = modifier.modify_map(&mut rng, &map);
assert_eq!(new_map.tiles, expected_map.tiles);
}
}
}

27
src/filter/distant_exit.rs
View File

@ -1,18 +1,17 @@
//! Add exit point to the map
//!
//!
//! This modifier will try to add exit point as far as possible from the starting point.
//! It means that starting point have to be set before this Modyfier will start.
//!
//!
use crate::dijkstra::DijkstraMap;
use crate::geometry::Point;
use crate::BuilderData;
use crate::Map;
use crate::MapFilter;
use rand::prelude::StdRng;
use std::f32;
use std::marker::PhantomData;
use rand::prelude::StdRng;
use crate::BuilderData;
use crate::geometry::Point;
use crate::MapFilter;
use crate::Map;
use crate::dijkstra::DijkstraMap;
/// Add exist position to the map based on the distance from the start point.
pub struct DistantExit<D: BuilderData> {
@ -20,7 +19,7 @@ pub struct DistantExit<D: BuilderData> {
}
impl<D: BuilderData> MapFilter<D> for DistantExit<D> {
fn modify_map(&self, _: &mut StdRng, map: &Map<D>) -> Map<D> {
fn modify_map(&self, _: &mut StdRng, map: &Map<D>) -> Map<D> {
self.build(map)
}
}
@ -43,7 +42,7 @@ impl<D: BuilderData> DistantExit<D> {
if value < f32::MAX && value > best_value {
best_value = value;
best_idx = i;
}
}
}
let x = best_idx % map.width;
let y = best_idx / map.width;
@ -57,11 +56,11 @@ impl<D: BuilderData> DistantExit<D> {
/// ------------------------------------------------------------------------------------------------
#[cfg(test)]
mod tests {
use rand::prelude::*;
use super::*;
use super::MapFilter;
use super::*;
use crate::geometry::Point;
use crate::map::{Map, NoData};
use rand::prelude::*;
#[test]
fn test_exit() {
@ -80,4 +79,4 @@ mod tests {
assert_eq!(new_map.exit_point, Some(Point::new(1, 2)));
}
}
}

75
src/filter/drunkard.rs
View File

@ -3,34 +3,36 @@
//! use rand::prelude::*;
//! use mapgen::{Map, MapFilter, NoData};
//! use mapgen::filter::DrunkardsWalk;
//!
//!
//! let mut rng = StdRng::seed_from_u64(100);
//! let gen = DrunkardsWalk::<NoData>::open_area();
//! let map = gen.modify_map(&mut rng, &Map::new(80, 50));
//!
//!
//! assert_eq!(map.width, 80);
//! assert_eq!(map.height, 50);
//! ```
//!
//!
use std::marker::PhantomData;
use rand::prelude::*;
use crate::MapFilter;
use crate::{
BuilderData,
map::{Map, Symmetry, Tile},
geometry::Point,
random::Rng
map::{Map, Symmetry, Tile},
random::Rng,
BuilderData,
};
use rand::prelude::*;
#[derive(PartialEq, Copy, Clone)]
pub enum DrunkSpawnMode { StartingPoint, Random }
pub enum DrunkSpawnMode {
StartingPoint,
Random,
}
pub struct DrunkardsWalk<D: BuilderData> {
spawn_mode : DrunkSpawnMode,
drunken_lifetime : i32,
spawn_mode: DrunkSpawnMode,
drunken_lifetime: i32,
floor_percent: f32,
brush_size: usize,
symmetry: Symmetry,
@ -38,19 +40,20 @@ pub struct DrunkardsWalk<D: BuilderData> {
}
impl<D: BuilderData> MapFilter<D> for DrunkardsWalk<D> {
fn modify_map(&self, rng: &mut StdRng, map: &Map<D>) -> Map<D> {
fn modify_map(&self, rng: &mut StdRng, map: &Map<D>) -> Map<D> {
self.build(rng, map)
}
}
impl<D: BuilderData> DrunkardsWalk<D> {
pub fn new( spawn_mode: DrunkSpawnMode,
drunken_lifetime: i32,
floor_percent: f32,
brush_size: usize,
symmetry: Symmetry) -> Box<DrunkardsWalk<D>>
{
Box::new(DrunkardsWalk{
pub fn new(
spawn_mode: DrunkSpawnMode,
drunken_lifetime: i32,
floor_percent: f32,
brush_size: usize,
symmetry: Symmetry,
) -> Box<DrunkardsWalk<D>> {
Box::new(DrunkardsWalk {
spawn_mode,
drunken_lifetime,
floor_percent,
@ -79,18 +82,18 @@ impl<D: BuilderData> DrunkardsWalk<D> {
pub fn fearful_symmetry() -> Box<DrunkardsWalk<D>> {
Self::new(DrunkSpawnMode::Random, 400, 0.4, 1, Symmetry::Both)
}
fn build(&self, rng: &mut StdRng, map: &Map<D>) -> Map<D> {
let mut new_map = map.clone();
// Set a central starting point
let starting_position = Point::new( new_map.width / 2, new_map.height / 2 );
let starting_position = Point::new(new_map.width / 2, new_map.height / 2);
new_map.set_tile(starting_position.x, starting_position.y, Tile::floor());
let total_tiles = new_map.width * new_map.height;
let desired_floor_tiles = (self.floor_percent * total_tiles as f32) as usize;
let mut floor_tile_count = new_map.tiles.iter().filter(|a| a.is_walkable()).count();
let mut digger_count = 0;
while floor_tile_count < desired_floor_tiles {
while floor_tile_count < desired_floor_tiles {
let mut drunk_x;
let mut drunk_y;
match self.spawn_mode {
@ -111,15 +114,31 @@ impl<D: BuilderData> DrunkardsWalk<D> {
let mut drunk_life = self.drunken_lifetime;
while drunk_life > 0 {
new_map.set_tile(drunk_x, drunk_y, Tile::wall());
new_map.set_tile(drunk_x, drunk_y, Tile::wall());
new_map.paint(self.symmetry, self.brush_size, drunk_x, drunk_y);
let stagger_direction = rng.roll_dice(1, 4);
match stagger_direction {
1 => { if drunk_x > 1 { drunk_x -= 1; } }
2 => { if drunk_x < new_map.width-2 { drunk_x += 1; } }
3 => { if drunk_y > 1 { drunk_y -=1; } }
_ => { if drunk_y < new_map.height-2 { drunk_y += 1; } }
1 => {
if drunk_x > 1 {
drunk_x -= 1;
}
}
2 => {
if drunk_x < new_map.width - 2 {
drunk_x += 1;
}
}
3 => {
if drunk_y > 1 {
drunk_y -= 1;
}
}
_ => {
if drunk_y < new_map.height - 2 {
drunk_y += 1;
}
}
}
drunk_life -= 1;
@ -131,4 +150,4 @@ impl<D: BuilderData> DrunkardsWalk<D> {
new_map
}
}
}

78
src/filter/maze.rs
View File

@ -3,32 +3,31 @@
//! use rand::prelude::*;
//! use mapgen::{Map, MapFilter, NoData};
//! use mapgen::filter::MazeBuilder;
//!
//!
//! let mut rng = StdRng::seed_from_u64(100);
//! let gen = MazeBuilder::<NoData>::new();
//! let map = gen.modify_map(&mut rng, &Map::new(80, 50));
//!
//!
//! assert_eq!(map.width, 80);
//! assert_eq!(map.height, 50);
//! ```
//!
//!
use std::marker::PhantomData;
use rand::prelude::*;
use crate::MapFilter;
use crate::{
map::{BuilderData, Map, Tile},
random::Rng
random::Rng,
};
use rand::prelude::*;
pub struct MazeBuilder<D: BuilderData> {
phantom: PhantomData<D>,
}
impl<D: BuilderData> MapFilter<D> for MazeBuilder<D> {
fn modify_map(&self, rng: &mut StdRng, map: &Map<D>) -> Map<D> {
fn modify_map(&self, rng: &mut StdRng, map: &Map<D>) -> Map<D> {
self.build(rng, map)
}
}
@ -43,7 +42,7 @@ impl<D: BuilderData> MazeBuilder<D> {
#[allow(clippy::map_entry)]
fn build(&self, rng: &mut StdRng, map: &Map<D>) -> Map<D> {
let mut new_map = map.clone();
let mut maze = Grid::new((map.width as i32/ 2)-2, (map.height as i32/ 2)-2, rng);
let mut maze = Grid::new((map.width as i32 / 2) - 2, (map.height as i32 / 2) - 2, rng);
maze.generate_maze(&mut new_map);
new_map
}
@ -51,10 +50,10 @@ impl<D: BuilderData> MazeBuilder<D> {
/* Maze code taken under MIT from https://github.com/cyucelen/mazeGenerator/ */
const TOP : usize = 0;
const RIGHT : usize = 1;
const BOTTOM : usize = 2;
const LEFT : usize = 3;
const TOP: usize = 0;
const RIGHT: usize = 1;
const BOTTOM: usize = 2;
const LEFT: usize = 3;
#[derive(Copy, Clone)]
struct Cell {
@ -66,31 +65,28 @@ struct Cell {
impl Cell {
fn new(row: i32, column: i32) -> Cell {
Cell{
Cell {
row,
column,
walls: [true, true, true, true],
visited: false
visited: false,
}
}
fn remove_walls(&mut self, next : &mut Cell) {
fn remove_walls(&mut self, next: &mut Cell) {
let x = self.column - next.column;
let y = self.row - next.row;
if x == 1 {
self.walls[LEFT] = false;
next.walls[RIGHT] = false;
}
else if x == -1 {
} else if x == -1 {
self.walls[RIGHT] = false;
next.walls[LEFT] = false;
}
else if y == 1 {
} else if y == 1 {
self.walls[TOP] = false;
next.walls[BOTTOM] = false;
}
else if y == -1 {
} else if y == -1 {
self.walls[BOTTOM] = false;
next.walls[TOP] = false;
}
@ -103,13 +99,13 @@ struct Grid<'a, D: BuilderData> {
cells: Vec<Cell>,
backtrace: Vec<usize>,
current: usize,
rng : &'a mut StdRng,
rng: &'a mut StdRng,
phantom: PhantomData<D>,
}
impl<'a, D: BuilderData> Grid<'a, D> {
fn new(width: i32, height:i32, rng: &mut StdRng) -> Grid<D> {
let mut grid = Grid{
fn new(width: i32, height: i32, rng: &mut StdRng) -> Grid<D> {
let mut grid = Grid {
width,
height,
cells: Vec::new(),
@ -129,7 +125,7 @@ impl<'a, D: BuilderData> Grid<'a, D> {
}
fn calculate_index(&self, row: i32, column: i32) -> i32 {
if row < 0 || column < 0 || column > self.width-1 || row > self.height-1 {
if row < 0 || column < 0 || column > self.width - 1 || row > self.height - 1 {
-1
} else {
column + (row * self.width)
@ -137,16 +133,16 @@ impl<'a, D: BuilderData> Grid<'a, D> {
}
fn get_available_neighbors(&self) -> Vec<usize> {
let mut neighbors : Vec<usize> = Vec::new();
let mut neighbors: Vec<usize> = Vec::new();
let current_row = self.cells[self.current].row;
let current_column = self.cells[self.current].column;
let neighbor_indices : [i32; 4] = [
self.calculate_index(current_row -1, current_column),
let neighbor_indices: [i32; 4] = [
self.calculate_index(current_row - 1, current_column),
self.calculate_index(current_row, current_column + 1),
self.calculate_index(current_row + 1, current_column),
self.calculate_index(current_row, current_column - 1)
self.calculate_index(current_row, current_column - 1),
];
for i in neighbor_indices.iter() {
@ -164,7 +160,7 @@ impl<'a, D: BuilderData> Grid<'a, D> {
if neighbors.len() == 1 {
return Some(neighbors[0]);
} else {
return Some(neighbors[(self.rng.roll_dice(1, neighbors.len())-1) as usize]);
return Some(neighbors[(self.rng.roll_dice(1, neighbors.len()) - 1) as usize]);
}
}
None
@ -209,17 +205,27 @@ impl<'a, D: BuilderData> Grid<'a, D> {
fn copy_to_map(&self, map: &mut Map<D>) {
// Clear the map
for i in map.tiles.iter_mut() { *i = Tile::wall(); }
for i in map.tiles.iter_mut() {
*i = Tile::wall();
}
for cell in self.cells.iter() {
let x = (cell.column as usize + 1) * 2;
let y = (cell.row as usize + 1) * 2;
map.set_tile(x, y, Tile::floor());
if !cell.walls[TOP] { map.set_tile(x, y-1, Tile::floor()) }
if !cell.walls[RIGHT] { map.set_tile(x+1, y, Tile::floor()) }
if !cell.walls[BOTTOM] { map.set_tile(x, y+1, Tile::floor()) }
if !cell.walls[LEFT] { map.set_tile(x-1, y, Tile::floor()) }
if !cell.walls[TOP] {
map.set_tile(x, y - 1, Tile::floor())
}
if !cell.walls[RIGHT] {
map.set_tile(x + 1, y, Tile::floor())
}
if !cell.walls[BOTTOM] {
map.set_tile(x, y + 1, Tile::floor())
}
if !cell.walls[LEFT] {
map.set_tile(x - 1, y, Tile::floor())
}
}
}
}
}

7
src/filter/mod.rs
View File

@ -1,5 +1,5 @@
//! Generators for dungeon type maps.
//!
//!
pub mod bsp_interior;
pub mod bsp_rooms;
@ -9,8 +9,8 @@ pub mod distant_exit;
pub mod drunkard;
pub mod maze;
pub mod noise_generator;
pub mod simple_rooms;
pub mod rooms_corridors_nearest;
pub mod simple_rooms;
pub mod starting_point;
pub mod voronoi;
@ -22,8 +22,7 @@ pub use distant_exit::DistantExit;
pub use drunkard::DrunkardsWalk;
pub use maze::MazeBuilder;
pub use noise_generator::NoiseGenerator;
pub use simple_rooms::SimpleRooms;
pub use rooms_corridors_nearest::NearestCorridors;
pub use simple_rooms::SimpleRooms;
pub use starting_point::{AreaStartingPosition, XStart, YStart};
pub use voronoi::VoronoiHive;

25
src/filter/noise_generator.rs
View File

@ -1,27 +1,26 @@
//! Apply noise to the map.
//! Each cell will be set to Floor with the given probabilty.
//!
//!
//! Example usage:
//! ```
//! use rand::prelude::*;
//! use mapgen::{Map, MapFilter, NoData};
//! use mapgen::filter::NoiseGenerator;
//!
//!
//! let mut rng = StdRng::seed_from_u64(100);
//! let gen = NoiseGenerator::<NoData>::uniform();
//! let map = gen.modify_map(&mut rng, &Map::new(80, 50));
//!
//!
//! assert_eq!(map.width, 80);
//! assert_eq!(map.height, 50);
//! ```
//!
//!
use std::marker::PhantomData;
use rand::prelude::*;
use crate::MapFilter;
use crate::{BuilderData, Map, Tile};
use rand::prelude::*;
/// Map noise generator
pub struct NoiseGenerator<D: BuilderData> {
@ -30,7 +29,7 @@ pub struct NoiseGenerator<D: BuilderData> {
}
impl<D: BuilderData> MapFilter<D> for NoiseGenerator<D> {
fn modify_map(&self, rng: &mut StdRng, map: &Map<D>) -> Map<D> {
fn modify_map(&self, rng: &mut StdRng, map: &Map<D>) -> Map<D> {
self.build(map, rng)
}
}
@ -56,15 +55,17 @@ impl<D: BuilderData> NoiseGenerator<D> {
fn build(&self, map: &Map<D>, rng: &mut StdRng) -> Map<D> {
let mut new_map = map.clone();
let p = (self.prob * 100.0) as u32;
for y in 1..new_map.height-1 {
for x in 1..new_map.width-1 {
for y in 1..new_map.height - 1 {
for x in 1..new_map.width - 1 {
let roll = rng.next_u32() % 100;
if roll > p { new_map.set_tile(x, y, Tile::floor()) }
else { new_map.set_tile(x, y, Tile::wall()) }
if roll > p {
new_map.set_tile(x, y, Tile::floor())
} else {
new_map.set_tile(x, y, Tile::wall())
}
}
}
new_map
}
}

22
src/filter/rooms_corridors_nearest.rs
View File

@ -1,25 +1,23 @@
//! Connect nearest rooms on the map with corridors
//!
use rand::prelude::StdRng;
//!
use crate::BuilderData;
use crate::MapFilter;
use crate::Map;
use crate::MapFilter;
use rand::prelude::StdRng;
use std::collections::HashSet;
use std::marker::PhantomData;
pub struct NearestCorridors<D: BuilderData> {
phantom: PhantomData<D>,
}
impl<D: BuilderData> MapFilter<D> for NearestCorridors<D> {
fn modify_map(&self, _: &mut StdRng, map: &Map<D>) -> Map<D> {
fn modify_map(&self, _: &mut StdRng, map: &Map<D>) -> Map<D> {
self.corridors(map)
}
}
impl<D: BuilderData> NearestCorridors<D> {
pub fn new() -> Box<NearestCorridors<D>> {
Box::new(NearestCorridors {
phantom: PhantomData,
@ -29,11 +27,11 @@ impl<D: BuilderData> NearestCorridors<D> {
fn corridors(&self, map: &Map<D>) -> Map<D> {
let mut new_map = map.clone();
let mut connected : HashSet<usize> = HashSet::new();
for (i,room) in map.rooms.iter().enumerate() {
let mut room_distance : Vec<(usize, f32)> = Vec::new();
let mut connected: HashSet<usize> = HashSet::new();
for (i, room) in map.rooms.iter().enumerate() {
let mut room_distance: Vec<(usize, f32)> = Vec::new();
let room_center = room.center();
for (j,other_room) in new_map.rooms.iter().enumerate() {
for (j, other_room) in new_map.rooms.iter().enumerate() {
if i != j && !connected.contains(&j) {
let other_center = other_room.center();
let distance = room_center.distance_to(&other_center);
@ -42,7 +40,7 @@ impl<D: BuilderData> NearestCorridors<D> {
}
if !room_distance.is_empty() {
room_distance.sort_by(|a,b| a.1.partial_cmp(&b.1).unwrap() );
room_distance.sort_by(|a, b| a.1.partial_cmp(&b.1).unwrap());
let dest_center = new_map.rooms[room_distance[0].0].center();
new_map.add_corridor(room_center, dest_center);
connected.insert(i);
@ -50,4 +48,4 @@ impl<D: BuilderData> NearestCorridors<D> {
}
new_map
}
}
}

30
src/filter/simple_rooms.rs
View File

@ -1,32 +1,31 @@
//! Random rooms map generator.
//!
//! Try to generate rooms of different size to fill the map area.
//!
//! Try to generate rooms of different size to fill the map area.
//! Rooms will not overlap.
//!
//!
//! Example generator usage:
//! ```
//! use rand::prelude::*;
//! use mapgen::{MapFilter, Map, NoData};
//! use mapgen::filter::SimpleRooms;
//!
//!
//! let mut rng = StdRng::seed_from_u64(100);
//! let gen = SimpleRooms::<NoData>::new();
//! let map = gen.modify_map(&mut rng, &Map::new(80, 50));
//!
//!
//! assert_eq!(map.width, 80);
//! assert_eq!(map.height, 50);
//! ```
//!
//!
use std::marker::PhantomData;
use rand::prelude::*;
use crate::BuilderData;
use crate::MapFilter;
use crate::geometry::Rect;
use crate::random::Rng;
use crate::BuilderData;
use crate::Map;
use crate::MapFilter;
use rand::prelude::*;
pub struct SimpleRooms<D: BuilderData> {
max_rooms: usize,
@ -36,15 +35,14 @@ pub struct SimpleRooms<D: BuilderData> {
}
impl<D: BuilderData> MapFilter<D> for SimpleRooms<D> {
fn modify_map(&self, rng: &mut StdRng, map: &Map<D>) -> Map<D> {
fn modify_map(&self, rng: &mut StdRng, map: &Map<D>) -> Map<D> {
self.build_rooms(map, rng)
}
}
impl<D: BuilderData> SimpleRooms<D> {
pub fn new() -> Box<SimpleRooms<D>> {
Box::new(SimpleRooms{
Box::new(SimpleRooms {
max_rooms: 30,
min_room_size: 6,
max_room_size: 10,
@ -52,7 +50,7 @@ impl<D: BuilderData> SimpleRooms<D> {
})
}
fn build_rooms(&self, map: &Map<D>, rng : &mut StdRng) -> Map<D> {
fn build_rooms(&self, map: &Map<D>, rng: &mut StdRng) -> Map<D> {
let mut new_map = map.clone();
// Create room dimensions
@ -67,7 +65,7 @@ impl<D: BuilderData> SimpleRooms<D> {
new_map.add_room(new_room);
}
}
new_map
}
}
}

72
src/filter/starting_point.rs
View File

@ -1,92 +1,98 @@
//! Add starting point to the map
//!
//! This modifier will try to add starting point by finding the floor title closes
//!
//! This modifier will try to add starting point by finding the floor title closes
//! to the given point.
//!
//!
//! Example modifier usage:
//! ```
//! use rand::prelude::*;
//! use mapgen::{MapFilter, Map, NoData, Tile};
//! use mapgen::filter::starting_point::{AreaStartingPosition, XStart, YStart};
//! use mapgen::geometry::Point;
//!
//!
//! let mut rng = StdRng::seed_from_u64(100);
//! let mut map = Map::<NoData>::new(80, 50);
//! map.set_tile(10, 10, Tile::floor());
//! let modifier = AreaStartingPosition::new(XStart::LEFT, YStart::TOP);
//! let new_map = modifier.modify_map(&mut rng, &map);
//!
//!
//! assert_eq!(new_map.starting_point, Some(Point::new(10, 10)));
//! ```
//!
//!
use std::marker::PhantomData;
use rand::prelude::StdRng;
use crate::BuilderData;
use crate::MapFilter;
use crate::geometry::Point;
use crate::BuilderData;
use crate::Map;
use crate::MapFilter;
use rand::prelude::StdRng;
/// Initial x region position
pub enum XStart { LEFT, CENTER, RIGHT }
pub enum XStart {
LEFT,
CENTER,
RIGHT,
}
/// Initial y region position
pub enum YStart { TOP, CENTER, BOTTOM }
pub enum YStart {
TOP,
CENTER,
BOTTOM,
}
/// Add starting position to the map
pub struct AreaStartingPosition<D: BuilderData> {
x : XStart,
y : YStart,
x: XStart,
y: YStart,
phantom: PhantomData<D>,
}
impl<D: BuilderData> MapFilter<D> for AreaStartingPosition<D> {
fn modify_map(&self, _: &mut StdRng, map: &Map<D>) -> Map<D> {
fn modify_map(&self, _: &mut StdRng, map: &Map<D>) -> Map<D> {
self.build(map)
}
}
impl<D: BuilderData> AreaStartingPosition<D> {
/// Create new modifier with given region
pub fn new(x : XStart, y : YStart) -> Box<AreaStartingPosition<D>> {
Box::new(AreaStartingPosition{
x, y,
pub fn new(x: XStart, y: YStart) -> Box<AreaStartingPosition<D>> {
Box::new(AreaStartingPosition {
x,
y,
phantom: PhantomData,
})
}
fn build(&self, map : &Map<D>) -> Map<D> {
fn build(&self, map: &Map<D>) -> Map<D> {
let seed_x = match self.x {
XStart::LEFT => 1,
XStart::CENTER => map.width / 2,
XStart::RIGHT => map.width - 2
XStart::RIGHT => map.width - 2,
};
let seed_y = match self.y {
YStart::TOP => 1,
YStart::CENTER => map.height / 2,
YStart::BOTTOM => map.height - 2
YStart::BOTTOM => map.height - 2,
};
let mut available_floors : Vec<(usize, f32)> = Vec::new();
let mut available_floors: Vec<(usize, f32)> = Vec::new();
for (idx, tiletype) in map.tiles.iter().enumerate() {
if tiletype.is_walkable() {
available_floors.push(
(
idx,
Point::new(idx % map.width, idx / map.width)
.distance_to(&Point::new(seed_x, seed_y))
)
);
available_floors.push((
idx,
Point::new(idx % map.width, idx / map.width)
.distance_to(&Point::new(seed_x, seed_y)),
));
}
}
if available_floors.is_empty() {
panic!("No valid floors to start on");
}
available_floors.sort_by(|a,b| a.1.partial_cmp(&b.1).unwrap());
available_floors.sort_by(|a, b| a.1.partial_cmp(&b.1).unwrap());
let start_x = available_floors[0].0 % map.width;
let start_y = available_floors[0].0 / map.width;
@ -102,11 +108,11 @@ impl<D: BuilderData> AreaStartingPosition<D> {
/// ------------------------------------------------------------------------------------------------
#[cfg(test)]
mod tests {
use rand::prelude::*;
use super::*;
use super::MapFilter;
use super::*;
use crate::geometry::Point;
use crate::map::{Map, NoData};
use rand::prelude::*;
#[test]
fn test_exit() {
@ -125,4 +131,4 @@ mod tests {
assert_eq!(new_map.starting_point, Some(Point::new(6, 1)));
}
}
}

53
src/filter/voronoi.rs
View File

@ -3,42 +3,40 @@
//! use rand::prelude::*;
//! use mapgen::{Map, MapFilter, NoData};
//! use mapgen::filter::VoronoiHive;
//!
//!
//! let mut rng = StdRng::seed_from_u64(100);
//! let gen = VoronoiHive::<NoData>::new();
//! let map = gen.modify_map(&mut rng, &Map::new(80, 50));
//!
//!
//! assert_eq!(map.width, 80);
//! assert_eq!(map.height, 50);
//! ```
//!
//!
use std::marker::PhantomData;
use rand::prelude::*;
use crate::MapFilter;
use crate::{
geometry::Point,
map::{BuilderData, Map, Tile},
random::Rng,
geometry::Point,
};
use rand::prelude::*;
pub struct VoronoiHive<D: BuilderData> {
n_seeds: usize,
phantom: PhantomData<D>,
}
impl<D: BuilderData> MapFilter<D> for VoronoiHive<D> {
fn modify_map(&self, rng: &mut StdRng, map: &Map<D>) -> Map<D> {
fn modify_map(&self, rng: &mut StdRng, map: &Map<D>) -> Map<D> {
self.build(rng, map)
}
}
impl<D: BuilderData> VoronoiHive<D> {
pub fn new() -> Box<VoronoiHive<D>> {
Box::new(VoronoiHive{
Box::new(VoronoiHive {
n_seeds: 64,
phantom: PhantomData,
})
@ -48,8 +46,8 @@ impl<D: BuilderData> VoronoiHive<D> {
let mut new_map = map.clone();
let seeds = self.generate_seeds(rng, map.width, map.height);
let mut voronoi_distance = vec![(0, 0.0f32) ; self.n_seeds];
let mut voronoi_membership : Vec<i32> = vec![0 ; map.width as usize * map.height as usize];
let mut voronoi_distance = vec![(0, 0.0f32); self.n_seeds];
let mut voronoi_membership: Vec<i32> = vec![0; map.width as usize * map.height as usize];
for (i, vid) in voronoi_membership.iter_mut().enumerate() {
let x = i % map.width;
let y = i / map.width;
@ -59,20 +57,28 @@ impl<D: BuilderData> VoronoiHive<D> {
voronoi_distance[seed] = (seed, distance);
}
voronoi_distance.sort_by(|a,b| a.1.partial_cmp(&b.1).unwrap());
voronoi_distance.sort_by(|a, b| a.1.partial_cmp(&b.1).unwrap());
*vid = voronoi_distance[0].0 as i32;
}
for y in 1..new_map.height-1 {
for x in 1..new_map.width-1 {
for y in 1..new_map.height - 1 {
for x in 1..new_map.width - 1 {
let mut neighbors = 0;
let my_idx = new_map.xy_idx(x, y);
let my_seed = voronoi_membership[my_idx];
if voronoi_membership[new_map.xy_idx(x-1, y)] != my_seed { neighbors += 1; }
if voronoi_membership[new_map.xy_idx(x+1, y)] != my_seed { neighbors += 1; }
if voronoi_membership[new_map.xy_idx(x, y-1)] != my_seed { neighbors += 1; }
if voronoi_membership[new_map.xy_idx(x, y+1)] != my_seed { neighbors += 1; }
if voronoi_membership[new_map.xy_idx(x - 1, y)] != my_seed {
neighbors += 1;
}
if voronoi_membership[new_map.xy_idx(x + 1, y)] != my_seed {
neighbors += 1;
}
if voronoi_membership[new_map.xy_idx(x, y - 1)] != my_seed {
neighbors += 1;
}
if voronoi_membership[new_map.xy_idx(x, y + 1)] != my_seed {
neighbors += 1;
}
if neighbors < 2 {
new_map.set_tile(x, y, Tile::floor());
@ -81,15 +87,15 @@ impl<D: BuilderData> VoronoiHive<D> {
}
new_map
}
}
/// Generate random seeds
fn generate_seeds(&self, rng: &mut StdRng, width: usize, height: usize) -> Vec<Point> {
let mut seeds: Vec<Point> = Vec::new();
while seeds.len() < self.n_seeds {
let vx = rng.roll_dice(1, width-1);
let vy = rng.roll_dice(1, height-1);
let vx = rng.roll_dice(1, width - 1);
let vy = rng.roll_dice(1, height - 1);
let candidate = Point::new(vx, vy);
if !seeds.contains(&candidate) {
seeds.push(candidate);
@ -98,5 +104,4 @@ impl<D: BuilderData> VoronoiHive<D> {
seeds
}
}
}

38
src/geometry.rs
View File

@ -1,17 +1,17 @@
//! Support function for 2D geometry
//!
//!
/// Position on the map
#[derive(Default, PartialEq, Copy, Clone, Debug, Eq, Hash)]
pub struct Point {
pub x: usize,
pub y: usize
pub y: usize,
}
impl Point {
/// Create new point
pub fn new(x: usize, y: usize) -> Point {
Point {x, y}
Point { x, y }
}
/// Create new point from i32 coords
@ -30,28 +30,33 @@ impl Point {
/// Rectangle region on the map
#[derive(PartialEq, Copy, Clone, Debug)]
pub struct Rect {
pub x1 : usize,
pub x2 : usize,
pub y1 : usize,
pub y2 : usize
pub x1: usize,
pub x2: usize,
pub y1: usize,
pub y2: usize,
}
impl Rect {
pub fn new(x: usize, y: usize, width: usize, height: usize) -> Rect {
Rect{x1:x, y1:y, x2:x+width, y2:y+height}
Rect {
x1: x,
y1: y,
x2: x + width,
y2: y + height,
}
}
pub fn new_i32(x:i32, y: i32, width:i32, height:i32) -> Rect {
pub fn new_i32(x: i32, y: i32, width: i32, height: i32) -> Rect {
Rect::new(x as usize, y as usize, width as usize, height as usize)
}
/// Returns true if this overlaps with other
pub fn intersect(&self, other:&Rect) -> bool {
pub fn intersect(&self, other: &Rect) -> bool {
self.x1 <= other.x2 && self.x2 >= other.x1 && self.y1 <= other.y2 && self.y2 >= other.y1
}
pub fn center(&self) -> Point {
Point::new((self.x1 + self.x2)/2, (self.y1 + self.y2)/2)
Point::new((self.x1 + self.x2) / 2, (self.y1 + self.y2) / 2)
}
pub fn width(&self) -> usize {
@ -75,12 +80,16 @@ impl Rect {
/// Example:
/// ```
/// use mapgen::geometry::usize_abs;
///
///
/// assert_eq!(usize_abs(5, 3), 2);
/// assert_eq!(usize_abs(3, 5), 2);
/// ```
pub fn usize_abs(x: usize, y: usize) -> usize {
if x >= y {x - y} else {y - x}
if x >= y {
x - y
} else {
y - x
}
}
/// ------------------------------------------------------------------------------------------------
@ -111,5 +120,4 @@ mod tests {
assert_eq!(rect1.width(), 40);
assert_eq!(rect1.height(), 30);
}
}
}

41
src/lib.rs
View File

@ -1,11 +1,11 @@
//! Generators for dungeon type maps.
//!
//!
//! Generators can bu used directly or they can be combined with
//! `MapGenerator`s and `MapModifier`s
//!
//!
//! * MapGenerators are use to create initial map.
//! * MapModifiers modify existing map.
//!
//!
//! Example
//! ```
//! use mapgen::{MapFilter, MapBuilder, Map, NoData, Tile};
@ -15,35 +15,34 @@
//! starting_point::{AreaStartingPosition, XStart, YStart}
//! };
//! use mapgen::geometry::Point;
//!
//!
//! let map = MapBuilder::<NoData>::new(80, 50)
//! .with(NoiseGenerator::uniform())
//! .with(CellularAutomata::new())
//! .with(AreaStartingPosition::new(XStart::CENTER, YStart::CENTER))
//! .build();
//!
//!
//! assert_eq!(map.width, 80);
//! assert_eq!(map.height, 50);
//! assert_eq!(map.starting_point.is_some(), true);
//! ```
//!
pub mod filter;
pub mod geometry;
pub mod map;
pub mod metric;
pub use map::{BuilderData, Map, NoData, Symmetry, Tile};
pub use filter::*;
pub use map::{BuilderData, Map, NoData, Symmetry, Tile};
pub (crate) mod dijkstra;
pub (crate) mod random;
pub(crate) mod dijkstra;
pub(crate) mod random;
use std::time::{SystemTime, UNIX_EPOCH};
use rand::prelude::*;
use std::time::{SystemTime, UNIX_EPOCH};
/// Trait which should be implemented by map modifier.
/// Trait which should be implemented by map modifier.
/// Modifier takes initiall map and apply changes to it.
pub trait MapFilter<D: BuilderData> {
fn modify_map(&self, rng: &mut StdRng, map: &Map<D>) -> Map<D>;
@ -59,21 +58,23 @@ pub struct MapBuilder<D> {
impl<D: BuilderData> MapBuilder<D> {
/// Create Map Builder with initial map generator
pub fn new(width: usize, height: usize) -> MapBuilder<D> {
MapBuilder {
MapBuilder {
width,
height,
modifiers: Vec::new(),
}
}
pub fn with(&mut self, modifier : Box<dyn MapFilter<D>>) -> &mut MapBuilder<D> {
pub fn with(&mut self, modifier: Box<dyn MapFilter<D>>) -> &mut MapBuilder<D> {
self.modifiers.push(modifier);
self
}
/// Build map using random number seeded with system time
pub fn build(&mut self) -> Map<D> {
let system_time = SystemTime::now().duration_since(UNIX_EPOCH).expect("Can't access system time");
let system_time = SystemTime::now()
.duration_since(UNIX_EPOCH)
.expect("Can't access system time");
let mut rng = StdRng::seed_from_u64(system_time.as_millis() as u64);
self.build_with_rng(&mut rng)
}
@ -81,7 +82,7 @@ impl<D: BuilderData> MapBuilder<D> {
/// Build map using provided random number generator
pub fn build_with_rng(&mut self, rng: &mut StdRng) -> Map<D> {
let mut map = Map::new(self.width, self.height);
// Build additional layers in turn
for modifier in self.modifiers.iter() {
map = modifier.modify_map(rng, &map);
@ -89,7 +90,6 @@ impl<D: BuilderData> MapBuilder<D> {
map
}
}
/// ------------------------------------------------------------------------------------------------
@ -101,9 +101,7 @@ mod tests {
use super::*;
use filter::{
CellularAutomata,
NoiseGenerator,
{AreaStartingPosition, XStart, YStart},
CellularAutomata, NoiseGenerator, {AreaStartingPosition, XStart, YStart},
};
#[test]
@ -118,5 +116,4 @@ mod tests {
assert_eq!(map.height, 50);
assert_eq!(map.starting_point.is_some(), true);
}
}
}

109
src/map.rs
View File

@ -1,15 +1,14 @@
//! Map structure contains information about tiles and other elements on the map.
//!
//!
//! Map is created with generators and then can by modified with MapModifiers.
//!
//! This structure is not intented to be your map in the game (But can be used as one).
//!
//! This structure is not intented to be your map in the game (But can be used as one).
//! Rather the information from this map will be copied to the structures required by
//! specific game.
//!
//!
use super::geometry::{usize_abs, Point, Rect};
use std::fmt;
use super::geometry::{Point, Rect, usize_abs};
#[derive(PartialEq, Copy, Clone, Debug, Eq, Hash)]
pub struct Tile {
@ -18,8 +17,12 @@ pub struct Tile {
}
#[derive(PartialEq, Copy, Clone)]
pub enum Symmetry { None, Horizontal, Vertical, Both }
pub enum Symmetry {
None,
Horizontal,
Vertical,
Both,
}
/// Arbitrary data associated with each map
pub trait BuilderData: Clone + Default {}
@ -33,9 +36,9 @@ impl BuilderData for NoData {}
/// Map data
#[derive(Default, Clone)]
pub struct Map<D> {
pub tiles : Vec<Tile>,
pub width : usize,
pub height : usize,
pub tiles: Vec<Tile>,
pub width: usize,
pub height: usize,
pub starting_point: Option<Point>,
pub exit_point: Option<Point>,
pub rooms: Vec<Rect>,
@ -45,13 +48,13 @@ pub struct Map<D> {
impl Tile {
pub fn new(is_blocked: bool, index: usize) -> Tile {
Tile { is_blocked, index}
Tile { is_blocked, index }
}
pub fn wall() -> Tile {
Tile::new(true, 0)
}
pub fn floor() -> Tile {
Tile::new(false, 0)
}
@ -70,29 +73,34 @@ impl Tile {
}
impl<D: BuilderData> Map<D> {
/// Generates an empty map, consisting entirely of solid walls
pub fn new(width: usize, height: usize) -> Map<D> {
let map_tile_count = width*height;
Map{
tiles : vec![Tile::wall(); map_tile_count],
let map_tile_count = width * height;
Map {
tiles: vec![Tile::wall(); map_tile_count],
width,
height,
starting_point: None,
exit_point: None,
rooms: Vec::new(),
corridors: Vec::new(),
data: Default::default()
data: Default::default(),
}
}
/// Create map from given string
pub fn from_string(map_string: &str) -> Map<D> {
let lines: Vec<&str> = map_string.split("\n")
let lines: Vec<&str> = map_string
.split("\n")
.map(|l| l.trim())
.filter(|l| l.len() > 0)
.collect();
let cols = lines.iter().map(|l| l.len()).max().get_or_insert(1).to_owned();
let cols = lines
.iter()
.map(|l| l.len())
.max()
.get_or_insert(1)
.to_owned();
let rows = lines.len();
let mut map = Map::new(cols, rows);
@ -122,22 +130,38 @@ impl<D: BuilderData> Map<D> {
let mut exits = Vec::new();
// Cardinal directions
if x > 0 && self.is_exit_valid(x-1, y) { exits.push((x-1, y, 1.0)) };
if self.is_exit_valid(x+1, y) { exits.push((x+1, y, 1.0)) };
if y > 0 && self.is_exit_valid(x, y-1) { exits.push((x, y-1, 1.0)) };
if self.is_exit_valid(x, y+1) { exits.push((x, y+1, 1.0)) };
if x > 0 && self.is_exit_valid(x - 1, y) {
exits.push((x - 1, y, 1.0))
};
if self.is_exit_valid(x + 1, y) {
exits.push((x + 1, y, 1.0))
};
if y > 0 && self.is_exit_valid(x, y - 1) {
exits.push((x, y - 1, 1.0))
};
if self.is_exit_valid(x, y + 1) {
exits.push((x, y + 1, 1.0))
};
// Diagonals
if x > 0 && y > 0 && self.is_exit_valid(x-1, y-1) { exits.push((x-1, y-1, 1.45)); }
if y > 0 && self.is_exit_valid(x+1, y-1) { exits.push((x+1, y-1, 1.45)); }
if x > 0 && self.is_exit_valid(x-1, y+1) { exits.push((x-1, y+1, 1.45)); }
if self.is_exit_valid(x+1, y+1) { exits.push((x+1, y+1, 1.45)); }
if x > 0 && y > 0 && self.is_exit_valid(x - 1, y - 1) {
exits.push((x - 1, y - 1, 1.45));
}
if y > 0 && self.is_exit_valid(x + 1, y - 1) {
exits.push((x + 1, y - 1, 1.45));
}
if x > 0 && self.is_exit_valid(x - 1, y + 1) {
exits.push((x - 1, y + 1, 1.45));
}
if self.is_exit_valid(x + 1, y + 1) {
exits.push((x + 1, y + 1, 1.45));
}
exits
}
}
// Check if given tile can be accessed
fn is_exit_valid(&self, x:usize, y:usize) -> bool {
fn is_exit_valid(&self, x: usize, y: usize) -> bool {
self.at(x, y).is_blocked == false
}
@ -150,9 +174,9 @@ impl<D: BuilderData> Map<D> {
}
pub fn xy_idx(&self, x: usize, y: usize) -> usize {
y * self.width + x
y * self.width + x
}
/// Create room on the map at given location
/// Room is created by setting all tiles in the room to the Floor
pub fn add_room(&mut self, rect: Rect) {
@ -164,7 +188,7 @@ impl<D: BuilderData> Map<D> {
self.rooms.push(rect);
}
pub fn add_corridor(&mut self, from: Point, to:Point) {
pub fn add_corridor(&mut self, from: Point, to: Point) {
let mut corridor = Vec::new();
let mut x = from.x;
let mut y = from.y;
@ -234,9 +258,13 @@ impl<D: BuilderData> Map<D> {
}
_ => {
let half_brush_size = brush_size / 2;
for brush_y in y-half_brush_size .. y+half_brush_size {
for brush_x in x-half_brush_size .. x+half_brush_size {
if brush_x > 1 && brush_x < self.width-1 && brush_y > 1 && brush_y < self.height-1 {
for brush_y in y - half_brush_size..y + half_brush_size {
for brush_x in x - half_brush_size..x + half_brush_size {
if brush_x > 1
&& brush_x < self.width - 1
&& brush_y > 1
&& brush_y < self.height - 1
{
self.set_tile(brush_x, brush_y, Tile::floor());
}
}
@ -250,7 +278,7 @@ impl<D: BuilderData> fmt::Display for Map<D> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
for y in 0..self.height {
let bytes: Vec<u8> = (0..self.width)
.map(|x| if self.at(x, y).is_blocked {'#'} else {' '} as u8)
.map(|x| if self.at(x, y).is_blocked { '#' } else { ' ' } as u8)
.collect();
let line = String::from_utf8(bytes).expect("Can't convert map to string");
let _ = write!(f, "{}\n", line);
@ -312,7 +340,7 @@ mod tests {
assert_eq!(exists, expected_exists);
}
#[test]
#[test]
fn test_create_room() {
let mut map = Map::<NoData>::new(5, 5);
map.add_room(Rect::new(1, 1, 3, 3));
@ -347,7 +375,6 @@ mod tests {
assert_eq!(map.tiles, expected_map.tiles);
}
#[test]
fn test_available_exists() {
let map_str = "
@ -360,4 +387,4 @@ mod tests {
assert_eq!(exists.len(), 1);
}
}
}

28
src/metric.rs
View File

@ -2,42 +2,37 @@
//! Can be used to meausre the quality of the map or the quality of the generator.
//! To meause the quality of the generator; generate lots of maps, measure them
//! and the provide generator score as an average.
//!
//!
use super::BuilderData;
use super::map::Map;
use super::dijkstra::DijkstraMap;
use super::map::Map;
use super::BuilderData;
/// This metric calculates the percentage of walkable cells (Floor).
/// If this number is very low (like < 10%) then it means that the map
/// If this number is very low (like < 10%) then it means that the map
/// is probably to degenerated and shouldn't be used
pub fn density<D>(map: &Map<D>) -> f32 {
let floor_count = map.tiles.iter()
.filter(|&t| t.is_walkable())
.count();
let floor_count = map.tiles.iter().filter(|&t| t.is_walkable()).count();
floor_count as f32 / map.tiles.len() as f32
}
/// Calculate the length of the shortes path from the starting point
/// to the exit.
/// If this path is very short, then the map is probably degenerated.
pub fn path_length<D: BuilderData>(map: &Map<D>) -> f32 {
if map.starting_point.is_none() {
return 0.0
return 0.0;
}
match map.exit_point {
None => 0.0,
Some(exit) => {
let dijkstra = DijkstraMap::new(map);
dijkstra.tiles[map.xy_idx(exit.x, exit.y)]
},
}
}
}
/// ------------------------------------------------------------------------------------------------
/// Module unit tests
/// ------------------------------------------------------------------------------------------------
@ -46,7 +41,6 @@ mod tests {
use super::*;
use crate::{geometry::Point, map::NoData};
#[test]
fn test_density_no_floor() {
let map = Map::<NoData>::new(10, 10);
@ -87,10 +81,10 @@ mod tests {
##########
";
let mut map = Map::<NoData>::from_string(map_str);
map.starting_point = Some(Point::new(1,1));
map.exit_point = Some(Point::new(8,1));
map.starting_point = Some(Point::new(1, 1));
map.exit_point = Some(Point::new(8, 1));
let score = path_length(&map);
assert!(f32::abs(score - 7.9) <= 0.01);
}
}
}

9
src/random.rs
View File

@ -1,5 +1,5 @@
//! Helper function for random number generator
//!
//!
use rand::prelude::*;
pub trait Rng {
@ -11,7 +11,7 @@ pub trait Rng {
impl Rng for StdRng {
fn roll_dice(&mut self, min: usize, max: usize) -> usize {
self.random_range(min, max+1)
self.random_range(min, max + 1)
}
fn random_range(&mut self, start: usize, end: usize) -> usize {
@ -29,8 +29,8 @@ impl Rng for StdRng {
/// ------------------------------------------------------------------------------------------------
#[cfg(test)]
mod tests {
use rand::prelude::*;
use super::Rng;
use rand::prelude::*;
#[test]
fn test_range() {
@ -64,5 +64,4 @@ mod tests {
assert_eq!(min, 1);
assert_eq!(max, 7);
}
}
}