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Fixes #935 - deterministic sprite placement in caves

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This commit is contained in:
dryadee 2021-01-23 21:14:07 +01:00
parent 47bd74469b
commit f064033bb4
2 changed files with 6 additions and 8 deletions
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12
world/src/layer/mod.rs
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@ -107,7 +107,7 @@ pub fn apply_paths_to(canvas: &mut Canvas) {
});
}
pub fn apply_caves_to(canvas: &mut Canvas) {
pub fn apply_caves_to(canvas: &mut Canvas, rng: &mut impl Rng) {
let info = canvas.info();
canvas.foreach_col(|canvas, wpos2d, col| {
let surface_z = col.riverless_alt.floor() as i32;
@ -178,13 +178,11 @@ pub fn apply_caves_to(canvas: &mut Canvas) {
let difficulty = cave_depth / 100.0;
// Scatter things in caves
if RandomField::new(info.index().seed)
.chance(wpos2d.into(), 0.001 * difficulty.powf(1.5))
&& cave_base < surface_z as i32 - 25
if rng.gen::<f32>() < 0.001 * difficulty.powf(1.5) && cave_base < surface_z as i32 - 25
{
let lottery = Lottery::<SpriteKind>::load_expect("common.cave_scatter").read();
let kind = *lottery
.choose_seeded(RandomField::new(info.index().seed + 1).get(wpos2d.into()));
let kind = *Lottery::<SpriteKind>::load_expect("common.cave_scatter")
.read()
.choose();
canvas.map(Vec3::new(wpos2d.x, wpos2d.y, cave_base), |block| {
block.with_sprite(kind)
});

2
world/src/lib.rs
View File

@ -286,7 +286,7 @@ impl World {
layer::apply_trees_to(&mut canvas);
layer::apply_scatter_to(&mut canvas, &mut dynamic_rng);
layer::apply_caves_to(&mut canvas);
layer::apply_caves_to(&mut canvas, &mut dynamic_rng);
layer::apply_paths_to(&mut canvas);
// Apply site generation