79 lines
2.7 KiB
Rust
79 lines
2.7 KiB
Rust
use super::{BuilderMap, MetaMapBuilder};
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use crate::rng::roll_dice;
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use crate::TileType;
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pub struct DoorPlacement {}
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impl MetaMapBuilder for DoorPlacement {
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#[allow(dead_code)]
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fn build_map(&mut self, build_data: &mut BuilderMap) {
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self.doors(build_data);
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}
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}
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impl DoorPlacement {
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#[allow(dead_code)]
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pub fn new() -> Box<DoorPlacement> {
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Box::new(DoorPlacement {})
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}
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fn doors(&mut self, build_data: &mut BuilderMap) {
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if let Some(halls_original) = &build_data.corridors {
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let halls = halls_original.clone();
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for hall in halls.iter() {
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// We aren't interested in tiny corridors
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if hall.len() > 2 && self.door_possible(build_data, hall[0]) {
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build_data.spawn_list.push((hall[0], "Door".to_string()));
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}
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}
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} else {
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// There are no corridors - scan for possible places
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let tiles = build_data.map.tiles.clone();
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for (i, tile) in tiles.iter().enumerate() {
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if *tile == TileType::Floor
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&& self.door_possible(build_data, i)
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&& roll_dice(1, 3) == 1
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{
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build_data.spawn_list.push((i, "Door".to_string()));
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}
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}
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}
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}
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fn door_possible(&self, build_data: &mut BuilderMap, idx: usize) -> bool {
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// Check that there isn't already something in this tile
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for spawn in build_data.spawn_list.iter() {
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if spawn.0 == idx {
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return false;
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}
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}
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let width = build_data.map.width as usize;
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let height = build_data.map.height as usize;
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let x = idx % width;
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let y = idx / width;
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// Check for east-west door possibility
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if build_data.map.tiles[idx] == TileType::Floor
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&& (x > 1 && build_data.map.tiles[idx - 1] == TileType::Floor)
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&& (x < width - 2 && build_data.map.tiles[idx + 1] == TileType::Floor)
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&& (y > 1 && build_data.map.tiles[idx - width] == TileType::Wall)
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&& (y < height - 2 && build_data.map.tiles[idx + width] == TileType::Wall)
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{
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return true;
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}
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// Check for north-south door possibility
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if build_data.map.tiles[idx] == TileType::Floor
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&& (x > 1 && build_data.map.tiles[idx - 1] == TileType::Wall)
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&& (x < width - 2 && build_data.map.tiles[idx + 1] == TileType::Wall)
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&& (y > 1 && build_data.map.tiles[idx - width] == TileType::Floor)
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&& (y < height - 2 && build_data.map.tiles[idx + width] == TileType::Floor)
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{
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return true;
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}
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false
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}
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}
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