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world gen experimentation

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griffi-gh 2023-02-14 23:39:14 +01:00
parent e1cf0a1ed0
commit 3b8eddcad1
1 changed files with 15 additions and 1 deletions
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16
kubi-shared/src/worldgen.rs
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@ -5,10 +5,22 @@ use crate::{
blocks::Block
};
fn mountain_ramp(mut x: f32) -> f32 {
x = x * 2.0;
if x < 0.4 {
0.5 * x
} else if x < 0.55 {
4. * (x - 0.4) + 0.2
} else {
0.4444 * (x - 0.55) + 0.8
}
}
fn local_height(height: i32, chunk_position: IVec3) -> usize {
let offset = chunk_position * CHUNK_SIZE as i32;
(height - offset.y).clamp(0, CHUNK_SIZE as i32) as usize
}
fn local_y_position(height: i32, chunk_position: IVec3) -> Option<usize> {
let offset = chunk_position * CHUNK_SIZE as i32;
let position = height - offset.y;
@ -45,7 +57,9 @@ pub fn generate_world(chunk_position: IVec3, seed: u64) -> BlockData {
//compute height
let height = {
let local_elevation = raw_elevation_value.powi(4).sqrt();
(raw_heightmap_value.clamp(-1., 1.) * local_elevation * 100.) as i32
let mut height = (mountain_ramp(raw_heightmap_value) * local_elevation * 100.) as i32;
if height < 0 { height /= 2 }
height
};
//place dirt
for y in 0..local_height(height, chunk_position) {