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caves

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griffi-gh 2023-02-17 22:44:01 +01:00
parent 32a293922a
commit 91bc3f50a8
1 changed files with 25 additions and 19 deletions
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44
kubi-shared/src/worldgen.rs
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@ -64,6 +64,16 @@ pub fn generate_world(chunk_position: IVec3, seed: u64) -> (BlockData, Vec<Queue
elevation_noise.set_fractal_octaves(1);
elevation_noise.set_frequency(0.001);
let mut cave_noise_a = FastNoise::seeded(seed.rotate_left(2));
cave_noise_a.set_fractal_type(FractalType::FBM);
cave_noise_a.set_fractal_octaves(2);
cave_noise_a.set_frequency(0.01);
let mut cave_noise_b = FastNoise::seeded(seed.rotate_left(3));
cave_noise_b.set_fractal_type(FractalType::FBM);
cave_noise_b.set_fractal_octaves(3);
cave_noise_b.set_frequency(0.015);
let mut rng = Xoshiro256StarStar::seed_from_u64(
seed
^ ((chunk_position.x as u32 as u64) << 0)
@ -72,11 +82,6 @@ pub fn generate_world(chunk_position: IVec3, seed: u64) -> (BlockData, Vec<Queue
let rng_map_a: [[f32; CHUNK_SIZE]; CHUNK_SIZE] = rng.gen();
let rng_map_b: [[f32; CHUNK_SIZE]; CHUNK_SIZE] = rng.gen();
// let mut cave_noise = FastNoise::seeded(seed.rotate_left(1));
// cave_noise.set_fractal_type(FractalType::FBM);
// cave_noise.set_fractal_octaves(2);
// cave_noise.set_frequency(0.001);
//Generate height map
let mut within_heightmap = false;
for x in 0..CHUNK_SIZE {
@ -156,21 +161,22 @@ pub fn generate_world(chunk_position: IVec3, seed: u64) -> (BlockData, Vec<Queue
}
}
//Carve out mountains
//Carve out caves
if within_heightmap {
// for z in 0..CHUNK_SIZE {
// for y in 0..CHUNK_SIZE {
// for x in 0..CHUNK_SIZE {
// if blocks[x][y][z] == Block::Air { continue }
// let position = ivec3(x as i32, y as i32, z as i32) + offset;
// let raw_cavemap_value = cave_noise.get_noise3d(position.x as f32, position.y as f32, position.z as f32);
// let is_cave = (-0.3..=-0.3).contains(&raw_cavemap_value);
// if is_cave {
// blocks[x][y][z] = Block::Air;
// }
// }
// }
// }
for z in 0..CHUNK_SIZE {
for y in 0..CHUNK_SIZE {
for x in 0..CHUNK_SIZE {
if blocks[x][y][z] == Block::Air { continue }
let position = ivec3(x as i32, y as i32, z as i32) + offset;
let raw_cavemap_value_a = cave_noise_a.get_noise3d(position.x as f32, position.y as f32, position.z as f32);
let raw_cavemap_value_b = cave_noise_b.get_noise3d(position.x as f32, position.y as f32, position.z as f32);
let is_cave = (-0.1..=0.1).contains(&raw_cavemap_value_a) && (-0.1..=0.1).contains(&raw_cavemap_value_b);
if is_cave {
blocks[x][y][z] = Block::Air;
}
}
}
}
}
(blocks, queue)