108 lines
3.6 KiB
Rust
108 lines
3.6 KiB
Rust
use ::rltk::RandomNumberGenerator;
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use super::{
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AreaStartingPosition, BuilderChain, BuilderMap, CullUnreachable, DistantExit,
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DrunkardsWalkBuilder, MetaMapBuilder, VoronoiSpawning, XStart, YStart,
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};
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use crate::map::TileType;
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use crate::map_builders::dla::DLABuilder;
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use crate::map_builders::prefab_builder::{prefab_sections, PrefabBuilder};
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pub fn limestone_cavern_builder(
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new_depth: i32,
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_rng: &mut RandomNumberGenerator,
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width: i32,
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height: i32,
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) -> BuilderChain {
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let mut chain = BuilderChain::new(new_depth, width, height, "Limestone Caverns");
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chain
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.start_with(DrunkardsWalkBuilder::winding_passages())
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.with(AreaStartingPosition::new(XStart::Center, YStart::Center))
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.with(CullUnreachable::new())
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.with(AreaStartingPosition::new(XStart::Left, YStart::Center))
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.with(VoronoiSpawning::new())
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.with(DistantExit::new())
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.with(CaveDecorator::new());
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chain
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}
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pub fn limestone_deep_cavern_builder(
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new_depth: i32,
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_rng: &mut RandomNumberGenerator,
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width: i32,
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height: i32,
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) -> BuilderChain {
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let mut chain = BuilderChain::new(new_depth, width, height, "Deep Limestone Caverns");
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chain
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.start_with(DLABuilder::central_attractor())
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.with(AreaStartingPosition::new(XStart::Left, YStart::Top))
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.with(VoronoiSpawning::new())
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.with(DistantExit::new())
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.with(CaveDecorator::new())
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.with(PrefabBuilder::sectional(prefab_sections::ORC_CAMP));
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chain
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}
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pub struct CaveDecorator {}
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impl MetaMapBuilder for CaveDecorator {
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fn build_map(&mut self, rng: &mut RandomNumberGenerator, build_data: &mut BuilderMap) {
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self.build(rng, build_data);
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}
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}
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impl CaveDecorator {
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#[allow(dead_code)]
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pub fn new() -> Box<CaveDecorator> {
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Box::new(CaveDecorator {})
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}
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fn build(&mut self, rng: &mut RandomNumberGenerator, build_data: &mut BuilderMap) {
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let old_map = build_data.map.clone();
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for (idx, tt) in build_data.map.tiles.iter_mut().enumerate() {
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// Gravel Spawning
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if *tt == TileType::Floor && rng.roll_dice(1, 6) == 1 {
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*tt = TileType::Gravel;
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} else if *tt == TileType::Floor && rng.roll_dice(1, 10) == 1 {
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// Spawn passable pools
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*tt = TileType::ShallowWater;
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} else if *tt == TileType::Wall {
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// Spawn deep pools and stalactites
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let mut neighbors = 0;
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let x = idx as i32 % old_map.width;
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let y = idx as i32 / old_map.width;
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if x > 0 && old_map.tiles[idx - 1] == TileType::Wall {
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neighbors += 1;
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}
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if x < old_map.width - 2 && old_map.tiles[idx + 1] == TileType::Wall {
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neighbors += 1
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}
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if y > 0 && old_map.tiles[idx - old_map.width as usize] == TileType::Wall {
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neighbors += 1
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}
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if y < old_map.height - 2
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&& old_map.tiles[idx + old_map.width as usize] == TileType::Wall
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{
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neighbors += 1
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}
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if neighbors == 2 {
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*tt = TileType::DeepWater;
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} else if neighbors == 1 {
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*tt = match rng.roll_dice(1, 4) {
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1 => TileType::Stalactite,
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2 => TileType::Stalagmite,
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_ => *tt,
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}
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}
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}
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}
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build_data.take_snapshot();
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build_data.map.outdoors = false;
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}
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}
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