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Cleaned up wall generation

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This commit is contained in:
Joshua Barretto 2019-08-30 18:57:38 +01:00
parent 1176fc4d07
commit 1eb0720cbb
1 changed files with 47 additions and 25 deletions
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54
world/src/generator/town/mod.rs
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@ -153,7 +153,7 @@ impl TownState {
// Generation passes
vol.setup(rng);
vol.gen_roads(rng, 30);
//vol.gen_parks(rng, 8);
vol.gen_parks(rng, 4);
vol.emplace_columns();
let houses = vol.gen_houses(rng, 50);
vol.gen_walls();
@ -180,6 +180,7 @@ impl TownState {
impl TownVol {
fn floodfill(
&self,
limit: Option<usize>,
mut opens: HashSet<Vec2<i32>>,
mut f: impl FnMut(Vec2<i32>, &TownColumn) -> bool,
) -> HashSet<Vec2<i32>> {
@ -188,19 +189,29 @@ impl TownVol {
while opens.len() > 0 {
let mut new_opens = HashSet::new();
for open in opens.iter() {
'search: for open in opens.iter() {
for i in -1..2 {
for j in -1..2 {
let pos = *open + Vec2::new(i, j);
if let Some(col) = self.col(pos) {
if !closed.contains(&pos) && !opens.contains(&pos) && f(pos, col) {
match limit {
Some(limit)
if limit
<= new_opens.len() + closed.len() + opens.len() =>
{
break 'search
}
_ => {
new_opens.insert(pos);
}
}
}
}
}
}
}
closed = closed.union(&opens).copied().collect();
opens = new_opens;
@ -280,14 +291,9 @@ impl TownVol {
})
.unwrap();
let mut energy = 50;
let mut park = self.floodfill([start].iter().copied().collect(), |_, col| {
if col.is_empty() && energy > 0 {
energy -= 1;
true
} else {
false
}
let mut park =
self.floodfill(Some(25), [start].iter().copied().collect(), |_, col| {
col.is_empty()
});
if park.len() < 4 {
@ -319,25 +325,41 @@ impl TownVol {
outer.insert(Vec2::new(self.size().x - 1, j));
}
let mut outer = self.floodfill(outer, |_, col| col.is_empty());
let mut outer = self.floodfill(None, outer, |_, col| col.is_empty());
let mut walls = HashSet::new();
let inner = self.floodfill([self.size() / 2].iter().copied().collect(), |pos, _| {
let inner = self.floodfill(
None,
[self.size() / 2].iter().copied().collect(),
|pos, _| {
if outer.contains(&pos) {
walls.insert(pos);
false
} else {
true
}
});
},
);
while let Some(wall) = walls
.iter()
.filter(|pos| {
(0..4)
let lateral_count = (0..4)
.filter(|i| walls.contains(&(**pos + util::dir(*i))))
.count();
let max_quadrant_count = (0..4)
.map(|i| {
let units = util::unit(i);
(0..2)
.map(|i| (0..2).map(move |j| (i, j)))
.flatten()
.filter(|(i, j)| walls.contains(&(**pos + units.0 * *i + units.1 * *j)))
.count()
< 2
})
.max()
.unwrap();
lateral_count < 2 || (lateral_count == 2 && max_quadrant_count == 4)
})
.next()
{
@ -376,7 +398,7 @@ impl TownVol {
}
fn gen_houses(&mut self, rng: &mut impl Rng, n: usize) -> Vec<House> {
const ATTEMPTS: usize = 20;
const ATTEMPTS: usize = 10;
let mut houses = Vec::new();
for _ in 0..n {