veloren_world/site2/plot/
rock_circle.rs

1use super::*;
2use crate::{
3    Land,
4    assets::AssetHandle,
5    site2::gen::PrimitiveTransform,
6    util::{RandomField, sampler::Sampler},
7};
8use common::{
9    generation::EntityInfo,
10    terrain::{Structure as PrefabStructure, StructuresGroup},
11};
12use lazy_static::lazy_static;
13use rand::prelude::*;
14use vek::*;
15
16pub struct RockCircle {
17    bounds: Aabr<i32>,
18    pub(crate) alt: i32,
19}
20impl RockCircle {
21    pub fn generate(land: &Land, _rng: &mut impl Rng, site: &Site, tile_aabr: Aabr<i32>) -> Self {
22        let bounds = Aabr {
23            min: site.tile_wpos(tile_aabr.min),
24            max: site.tile_wpos(tile_aabr.max),
25        };
26        Self {
27            bounds,
28            alt: land.get_alt_approx(site.tile_center_wpos(tile_aabr.center())) as i32 + 2,
29        }
30    }
31}
32
33impl Structure for RockCircle {
34    #[cfg(feature = "use-dyn-lib")]
35    const UPDATE_FN: &'static [u8] = b"render_rock_circle\0";
36
37    #[cfg_attr(feature = "be-dyn-lib", export_name = "render_rock_circle")]
38    fn render_inner(&self, _site: &Site, land: &Land, painter: &Painter) {
39        let center = self.bounds.center();
40        let base = land.get_alt_approx(center) as i32;
41        let mut thread_rng = thread_rng();
42        let model_pos = center.with_z(base);
43        // model
44        lazy_static! {
45            pub static ref MODEL: AssetHandle<StructuresGroup> =
46                PrefabStructure::load_group("site_structures.rock_circle.rock_circle");
47        }
48        let rng = RandomField::new(0).get(model_pos) % 10;
49        let model = MODEL.read();
50        let model = model[rng as usize % model.len()].clone();
51        painter
52            .prim(Primitive::Prefab(Box::new(model.clone())))
53            .translate(model_pos)
54            .fill(Fill::Prefab(Box::new(model), model_pos, rng));
55
56        // npcs
57        if thread_rng.gen_range(0..=8) < 1 {
58            // dullahan
59            painter.spawn(
60                EntityInfo::at(center.with_z(base + 2).as_()).with_asset_expect(
61                    "common.entity.wild.aggressive.dullahan",
62                    &mut thread_rng,
63                    None,
64                ),
65            )
66        }
67    }
68}