57 lines
1.8 KiB
Rust
57 lines
1.8 KiB
Rust
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use std::collections::HashMap;
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use rltk::RandomNumberGenerator;
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use crate::map_builders::{BuilderMap, MetaMapBuilder};
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use crate::{spawner, TileType};
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pub struct VoronoiSpawning {}
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impl MetaMapBuilder for VoronoiSpawning {
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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 VoronoiSpawning {
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#[allow(dead_code)]
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pub fn new() -> Box<VoronoiSpawning> {
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Box::new(VoronoiSpawning {})
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}
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fn build(&mut self, rng: &mut RandomNumberGenerator, build_data: &mut BuilderMap) {
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let mut noise_areas: HashMap<i32, Vec<usize>> = HashMap::new();
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let mut noise = rltk::FastNoise::seeded(rng.roll_dice(1, 65536) as u64);
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noise.set_noise_type(rltk::NoiseType::Cellular);
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noise.set_frequency(0.08);
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noise.set_cellular_distance_function(rltk::CellularDistanceFunction::Manhattan);
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for y in 1..build_data.map.height - 1 {
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for x in 1..build_data.map.width - 1 {
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let idx = build_data.map.xy_idx(x, y);
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if build_data.map.tiles[idx] == TileType::Floor {
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let cell_value_f = noise.get_noise(x as f32, y as f32) * 10240.0;
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let cell_value = cell_value_f as i32;
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if noise_areas.contains_key(&cell_value) {
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noise_areas.get_mut(&cell_value).unwrap().push(idx);
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} else {
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noise_areas.insert(cell_value, vec![idx]);
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}
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}
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}
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}
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// Spawn the entities
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for area in noise_areas.iter() {
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spawner::spawn_region(
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&build_data.map,
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rng,
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area.1,
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build_data.map.depth,
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&mut build_data.spawn_list,
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);
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}
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}
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}
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