tutorials/roguelike-game
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Complete section 4.11

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This commit is contained in:
Timothy Warren 2021-12-09 11:34:46 -05:00
parent 0bc9e1a938
commit 9879fa30b6
5 changed files with 95 additions and 41 deletions
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46
src/map_builders/mod.rs
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@ -32,24 +32,30 @@ pub trait MapBuilder {
}
pub fn random_builder(new_depth: i32) -> Box<dyn MapBuilder> {
// let mut rng = rltk::RandomNumberGenerator::new();
// match rng.roll_dice(1, 16) {
// 1 => Box::new(BspDungeonBuilder::new(new_depth)),
// 2 => Box::new(BspInteriorBuilder::new(new_depth)),
// 3 => Box::new(CellularAutomataBuilder::new(new_depth)),
// 4 => Box::new(DrunkardsWalkBuilder::open_area(new_depth)),
// 5 => Box::new(DrunkardsWalkBuilder::open_halls(new_depth)),
// 6 => Box::new(DrunkardsWalkBuilder::winding_passages(new_depth)),
// 7 => Box::new(DrunkardsWalkBuilder::fat_passages(new_depth)),
// 8 => Box::new(DrunkardsWalkBuilder::fearful_symmetry(new_depth)),
// 9 => Box::new(MazeBuilder::new(new_depth)),
// 10 => Box::new(DLABuilder::walk_inwards(new_depth)),
// 11 => Box::new(DLABuilder::walk_outwards(new_depth)),
// 12 => Box::new(DLABuilder::central_attractor(new_depth)),
// 13 => Box::new(DLABuilder::insectoid(new_depth)),
// 14 => Box::new(VoronoiCellBuilder::pythagoras(new_depth)),
// 15 => Box::new(VoronoiCellBuilder::manhattan(new_depth)),
// _ => Box::new(SimpleMapBuilder::new(new_depth)),
// }
Box::new(WaveformCollapseBuilder::new(new_depth))
let mut rng = rltk::RandomNumberGenerator::new();
let mut result: Box<dyn MapBuilder> = match rng.roll_dice(1, 17) {
1 => Box::new(BspDungeonBuilder::new(new_depth)),
2 => Box::new(BspInteriorBuilder::new(new_depth)),
3 => Box::new(CellularAutomataBuilder::new(new_depth)),
4 => Box::new(DrunkardsWalkBuilder::open_area(new_depth)),
5 => Box::new(DrunkardsWalkBuilder::open_halls(new_depth)),
6 => Box::new(DrunkardsWalkBuilder::winding_passages(new_depth)),
7 => Box::new(DrunkardsWalkBuilder::fat_passages(new_depth)),
8 => Box::new(DrunkardsWalkBuilder::fearful_symmetry(new_depth)),
9 => Box::new(MazeBuilder::new(new_depth)),
10 => Box::new(DLABuilder::walk_inwards(new_depth)),
11 => Box::new(DLABuilder::walk_outwards(new_depth)),
12 => Box::new(DLABuilder::central_attractor(new_depth)),
13 => Box::new(DLABuilder::insectoid(new_depth)),
14 => Box::new(VoronoiCellBuilder::pythagoras(new_depth)),
15 => Box::new(VoronoiCellBuilder::manhattan(new_depth)),
16 => Box::new(WaveformCollapseBuilder::test_map(new_depth)),
_ => Box::new(SimpleMapBuilder::new(new_depth)),
};
if rng.roll_dice(1, 3) == 1 {
result = Box::new(WaveformCollapseBuilder::derived_map(new_depth, result));
}
result
}

7
src/map_builders/waveform_collapse/constraints.rs
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@ -212,9 +212,10 @@ pub fn patterns_to_constraints(patterns: Vec<Vec<TileType>>, chunk_size: i32) ->
c.compatible_with[direction].push(j);
}
if !has_any {
// There's no exits on this side, we don't care what goes there
for compat in c.compatible_with.iter_mut() {
compat.push(j);
// There's no exits on this side, let's match only if
// the other edge also has no exits
if potential.exits[opposite].iter().filter(|a| !**a).count() == 0 {
c.compatible_with[direction].push(j);
}
}
}

73
src/map_builders/waveform_collapse/mod.rs
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@ -16,12 +16,20 @@ use solver::*;
use specs::prelude::*;
use std::collections::HashMap;
#[derive(PartialEq, Copy, Clone)]
pub enum WaveformMode {
TestMap,
Derived,
}
pub struct WaveformCollapseBuilder {
map: Map,
starting_position: Position,
depth: i32,
history: Vec<Map>,
noise_areas: HashMap<i32, Vec<usize>>,
mode: WaveformMode,
derive_from: Option<Box<dyn MapBuilder>>,
}
impl MapBuilder for WaveformCollapseBuilder {
@ -40,7 +48,7 @@ impl MapBuilder for WaveformCollapseBuilder {
}
fn get_starting_position(&self) -> Position {
self.starting_position.clone()
self.starting_position
}
fn get_snapshot_history(&self) -> Vec<Map> {
@ -59,27 +67,66 @@ impl MapBuilder for WaveformCollapseBuilder {
}
impl WaveformCollapseBuilder {
pub fn new(new_depth: i32) -> WaveformCollapseBuilder {
/// Generic constructor for waveform collapse.
/// # Arguments
/// * new_depth - the new map depth
/// * derive_from - either None, or a boxed MapBuilder, as output by `random_builder`
pub fn new(
new_depth: i32,
mode: WaveformMode,
derive_from: Option<Box<dyn MapBuilder>>,
) -> WaveformCollapseBuilder {
WaveformCollapseBuilder {
map: Map::new(new_depth),
starting_position: Position { x: 0, y: 0 },
depth: new_depth,
history: Vec::new(),
noise_areas: HashMap::new(),
mode,
derive_from,
}
}
/// Creates a Wave Function Collapse builder using the baked-in WFC test map.
/// # Arguments
/// * new_depth - the new map depth
pub fn test_map(new_depth: i32) -> WaveformCollapseBuilder {
WaveformCollapseBuilder::new(new_depth, WaveformMode::TestMap, None)
}
/// Derives a map from a pre-existing map builder.
/// # Arguments
/// * new_depth - the new map depth
/// * derive_from - either None, or a boxed MapBuilder, as output by `random_builder`
pub fn derived_map(new_depth: i32, builder: Box<dyn MapBuilder>) -> WaveformCollapseBuilder {
WaveformCollapseBuilder::new(new_depth, WaveformMode::Derived, Some(builder))
}
fn build(&mut self) {
let mut rng = RandomNumberGenerator::new();
const CHUNK_SIZE: i32 = 7;
if self.mode == WaveformMode::TestMap {
self.map = load_rex_map(
self.depth,
&rltk::XpFile::from_resource("../resources/wfc-demo2.xp").unwrap(),
&rltk::XpFile::from_resource("../resources/wfc-demo1.xp").unwrap(),
);
self.take_snapshot();
return;
}
let mut rng = RandomNumberGenerator::new();
const CHUNK_SIZE: i32 = 8;
let prebuilder = &mut self.derive_from.as_mut().unwrap();
prebuilder.build_map();
self.map = prebuilder.get_map();
for t in self.map.tiles.iter_mut() {
if *t == TileType::DownStairs {
*t = TileType::Floor
}
}
self.take_snapshot();
let patterns = build_patterns(&self.map, CHUNK_SIZE, true, true);
let constraints = patterns_to_constraints(patterns, CHUNK_SIZE);
self.render_tile_gallery(&constraints, CHUNK_SIZE);
@ -104,10 +151,12 @@ impl WaveformCollapseBuilder {
let mut start_idx = self
.map
.xy_idx(self.starting_position.x, self.starting_position.y);
// while self.map.tiles[start_idx] != TileType::Floor {
// self.starting_position.x -= 1;
// start_idx = self.map.xy_idx(self.starting_position.x, self.starting_position.y);
// }
while self.map.tiles[start_idx] != TileType::Floor {
self.starting_position.x -= 1;
start_idx = self
.map
.xy_idx(self.starting_position.x, self.starting_position.y);
}
self.take_snapshot();
// Find all tiles we can reach from the starting point
@ -122,7 +171,7 @@ impl WaveformCollapseBuilder {
self.noise_areas = generate_voronoi_spawn_regions(&self.map, &mut rng);
}
fn render_tile_gallery(&mut self, constraints: &Vec<MapChunk>, chunk_size: i32) {
fn render_tile_gallery(&mut self, constraints: &[MapChunk], chunk_size: i32) {
self.map = Map::new(0);
let mut counter = 0;
let mut x = 1;

8
src/map_builders/waveform_collapse/solver.rs
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@ -41,28 +41,28 @@ impl Solver {
if chunk_x > 0 {
let left_idx = self.chunk_idx(chunk_x - 1, chunk_y);
if let Some(_) = self.chunks[left_idx] {
if self.chunks[left_idx].is_some() {
neighbors += 1;
}
}
if chunk_x < self.chunks_x - 1 {
let right_idx = self.chunk_idx(chunk_x + 1, chunk_y);
if let Some(_) = self.chunks[right_idx] {
if self.chunks[right_idx].is_some() {
neighbors += 1;
}
}
if chunk_y > 0 {
let up_idx = self.chunk_idx(chunk_x, chunk_y - 1);
if let Some(_) = self.chunks[up_idx] {
if self.chunks[up_idx].is_some() {
neighbors += 1;
}
}
if chunk_y < self.chunks_y - 1 {
let down_idx = self.chunk_idx(chunk_x, chunk_y + 1);
if let Some(_) = self.chunks[down_idx] {
if self.chunks[down_idx].is_some() {
neighbors += 1;
}
}

2
src/rex_assets.rs
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@ -2,7 +2,6 @@ use rltk::rex::XpFile;
rltk::embedded_resource!(SMALL_DUNGEON, "../resources/SmallDungeon_80x50.xp");
rltk::embedded_resource!(WFC_DEMO_IMAGE1, "../resources/wfc-demo1.xp");
rltk::embedded_resource!(WFC_DEMO_IMAGE2, "../resources/wfc-demo2.xp");
pub struct RexAssets {
pub menu: XpFile,
@ -12,7 +11,6 @@ impl RexAssets {
pub fn new() -> RexAssets {
rltk::link_resource!(SMALL_DUNGEON, "../resources/SmallDungeon_80x50.xp");
rltk::link_resource!(WFC_DEMO_IMAGE1, "../resources/wfc-demo1.xp");
rltk::link_resource!(WFC_DEMO_IMAGE2, "../resources/wfc-demo2.xp");
RexAssets {
menu: XpFile::from_resource("../resources/SmallDungeon_80x50.xp").unwrap(),