54 lines
1.7 KiB
Rust
54 lines
1.7 KiB
Rust
use crate::map_builders::{BuilderMap, MetaMapBuilder};
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use crate::TileType;
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pub struct DistantExit {}
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impl MetaMapBuilder for DistantExit {
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fn build_map(&mut self, build_data: &mut BuilderMap) {
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self.build(build_data);
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}
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}
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impl DistantExit {
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#[allow(dead_code)]
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pub fn new() -> Box<DistantExit> {
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Box::new(DistantExit {})
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}
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fn build(&mut self, build_data: &mut BuilderMap) {
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let starting_pos = *build_data.starting_position.as_ref().unwrap();
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let start_idx = build_data.map.xy_idx(starting_pos.x, starting_pos.y);
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build_data.map.populate_blocked();
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let map_starts: Vec<usize> = vec![start_idx];
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let dijkstra_map = rltk::DijkstraMap::new(
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build_data.map.width as usize,
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build_data.map.height as usize,
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&map_starts,
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&build_data.map,
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1000.0,
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);
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let mut exit_tile = (0, 0.0f32);
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for (i, tile) in build_data.map.tiles.iter_mut().enumerate() {
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if *tile == TileType::Floor {
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let distance_to_start = dijkstra_map.map[i];
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// We can't get to this tile - so we'll make it a wall
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if distance_to_start != f32::MAX {
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// If it is further away than our current exit candidate, move the exit
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if distance_to_start > exit_tile.1 {
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exit_tile.0 = i;
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exit_tile.1 = distance_to_start;
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}
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}
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}
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}
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// Place a staircase
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let stairs_idx = exit_tile.0;
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build_data.map.tiles[stairs_idx] = TileType::DownStairs;
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build_data.take_snapshot();
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}
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}
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