roguelike-game/src/map_builders/room_exploder.rs

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Rust
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use crate::map_builders::common::{paint, Symmetry};
use crate::map_builders::{BuilderMap, MetaMapBuilder};
use crate::{Rect, TileType};
use rltk::RandomNumberGenerator;
pub struct RoomExploder {}
impl MetaMapBuilder for RoomExploder {
fn build_map(&mut self, rng: &mut RandomNumberGenerator, build_data: &mut BuilderMap) {
self.build(rng, build_data);
}
}
impl RoomExploder {
#[allow(dead_code)]
pub fn new() -> Box<RoomExploder> {
Box::new(RoomExploder {})
}
fn build(&mut self, rng: &mut RandomNumberGenerator, build_data: &mut BuilderMap) {
let rooms: Vec<Rect>;
if let Some(rooms_builder) = &build_data.rooms {
rooms = rooms_builder.clone();
} else {
panic!("Room Explosions require a builder with room structures");
}
for room in rooms.iter() {
let start = room.center();
let n_diggers = rng.roll_dice(1, 20) - 5;
if n_diggers > 0 {
for _i in 0..n_diggers {
let mut drunk_x = start.0;
let mut drunk_y = start.1;
let mut drunk_life = 20;
let mut did_something = false;
while drunk_life > 0 {
let drunk_idx = build_data.map.xy_idx(drunk_x, drunk_y);
if build_data.map.tiles[drunk_idx] == TileType::Wall {
did_something = true;
}
paint(&mut build_data.map, Symmetry::None, 1, drunk_x, drunk_y);
build_data.map.tiles[drunk_idx] = TileType::DownStairs;
match rng.roll_dice(1, 4) {
1 => {
if drunk_x > 2 {
drunk_x -= 1;
}
}
2 => {
if drunk_x < build_data.map.width - 2 {
drunk_x += 1;
}
}
3 => {
if drunk_y > 2 {
drunk_y -= 1;
}
}
_ => {
if drunk_y < build_data.map.height - 2 {
drunk_y += 1;
}
}
}
drunk_life -= 1;
}
if did_something {
build_data.take_snapshot();
}
for t in build_data.map.tiles.iter_mut() {
if *t == TileType::DownStairs {
*t = TileType::Floor;
}
}
}
}
}
}
}