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Amatsugu
2026-03-13 18:02:11 -04:00
parent e3ddd3b5d4
commit b567dd00fd
24 changed files with 456 additions and 299 deletions
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68
engine/world_generation/src/map/map_utils.rs
View File

@@ -1,6 +1,6 @@
use std::ops::Add;
use bevy::{asset::AssetLoader, math::VectorSpace, prelude::*};
use bevy::{math::VectorSpace, prelude::*};
use image::ImageBuffer;
use rayon::prelude::*;
@@ -13,7 +13,8 @@ pub fn render_image(
data: &Vec<f32>,
color1: LinearRgba,
color2: LinearRgba,
) -> ImageBuffer<image::Rgba<u8>, Vec<u8>> {
) -> ImageBuffer<image::Rgba<u8>, Vec<u8>>
{
let mut image = ImageBuffer::new(size.x * Chunk::SIZE as u32, size.y * Chunk::SIZE as u32);
update_image(size, data, color1, color2, &mut image);
@@ -26,7 +27,8 @@ pub fn update_image(
color1: LinearRgba,
color2: LinearRgba,
image: &mut ImageBuffer<image::Rgba<u8>, Vec<u8>>,
) {
)
{
let min = *data.iter().min_by(|a, b| a.partial_cmp(b).unwrap()).unwrap_or(&0.0);
let max = *data.iter().min_by(|a, b| a.partial_cmp(b).unwrap()).unwrap_or(&1.0);
@@ -41,7 +43,8 @@ pub fn update_image(
});
}
fn to_pixel(col: &LinearRgba) -> image::Rgba<u8> {
fn to_pixel(col: &LinearRgba) -> image::Rgba<u8>
{
return image::Rgba([
(col.red * 255.0) as u8,
(col.green * 255.0) as u8,
@@ -49,7 +52,8 @@ fn to_pixel(col: &LinearRgba) -> image::Rgba<u8> {
255,
]);
}
pub fn render_map(map: &Map, smooth: f32) -> ImageBuffer<image::Rgba<u8>, Vec<u8>> {
pub fn render_map(map: &Map, smooth: f32) -> ImageBuffer<image::Rgba<u8>, Vec<u8>>
{
let mut image = ImageBuffer::new(
map.width as u32 * Chunk::SIZE as u32,
map.height as u32 * Chunk::SIZE as u32,
@@ -57,18 +61,21 @@ pub fn render_map(map: &Map, smooth: f32) -> ImageBuffer<image::Rgba<u8>, Vec<u8
update_map(map, smooth, &mut image);
return image;
}
pub fn update_map(map: &Map, smooth: f32, image: &mut ImageBuffer<image::Rgba<u8>, Vec<u8>>) {
pub fn update_map(map: &Map, smooth: f32, image: &mut ImageBuffer<image::Rgba<u8>, Vec<u8>>)
{
image.par_enumerate_pixels_mut().for_each(|(x, y, pixel)| {
let coord = HexCoord::from_grid_pos(x as usize, y as usize);
let right = coord.get_neighbor(1);
let height = map.sample_height(&coord);
let mut color = Hsla::hsl(138.0, 1.0, 0.4);
if height < map.sealevel {
if height < map.sealevel
{
color.hue = 217.0;
}
if map.is_in_bounds(&right) {
if map.is_in_bounds(&right)
{
let h2 = map.sample_height(&right);
color = get_height_color_blend(color, height, h2, smooth);
}
@@ -77,22 +84,33 @@ pub fn update_map(map: &Map, smooth: f32, image: &mut ImageBuffer<image::Rgba<u8
});
}
fn get_height_color_blend(base_color: Hsla, height: f32, height2: f32, smooth: f32) -> Hsla {
fn get_height_color_blend(base_color: Hsla, height: f32, height2: f32, smooth: f32) -> Hsla
{
let mut color = base_color;
let mut d = height2 - height;
if smooth == 0.0 || d.abs() > smooth {
if d > 0.0 {
if smooth == 0.0 || d.abs() > smooth
{
if d > 0.0
{
color.lightness += 0.1;
} else if d < 0.0 {
}
else if d < 0.0
{
color.lightness -= 0.1;
}
} else {
if d.abs() <= smooth {
}
else
{
if d.abs() <= smooth
{
d /= smooth;
if d > 0.0 {
if d > 0.0
{
let c2: LinearRgba = color.with_lightness(color.lightness + 0.1).into();
color = LinearRgba::lerp(color.into(), c2, d).into();
} else {
}
else
{
let c2: LinearRgba = color.with_lightness(color.lightness - 0.1).into();
color = LinearRgba::lerp(color.into(), c2, d.abs()).into();
}
@@ -102,13 +120,15 @@ fn get_height_color_blend(base_color: Hsla, height: f32, height2: f32, smooth: f
return color;
}
pub fn render_biome_noise_map(map: &BiomeMap, multi: Vec3) -> ImageBuffer<image::Rgba<u8>, Vec<u8>> {
pub fn render_biome_noise_map(map: &BiomeMap, multi: Vec3) -> ImageBuffer<image::Rgba<u8>, Vec<u8>>
{
let mut image = ImageBuffer::new(map.width as u32, map.height as u32);
update_biome_noise_map(map, multi, &mut image);
return image;
}
pub fn update_biome_noise_map(map: &BiomeMap, multi: Vec3, image: &mut ImageBuffer<image::Rgba<u8>, Vec<u8>>) {
pub fn update_biome_noise_map(map: &BiomeMap, multi: Vec3, image: &mut ImageBuffer<image::Rgba<u8>, Vec<u8>>)
{
image.par_enumerate_pixels_mut().for_each(|(x, y, pixel)| {
let tile = map.get_biome_data(x as usize, y as usize);
@@ -121,7 +141,8 @@ pub fn update_biome_noise_map(map: &BiomeMap, multi: Vec3, image: &mut ImageBuff
});
}
pub fn render_biome_map(map: &Map, biome_map: &BiomeMap) -> ImageBuffer<image::Rgba<u8>, Vec<u8>> {
pub fn render_biome_map(map: &Map, biome_map: &BiomeMap) -> ImageBuffer<image::Rgba<u8>, Vec<u8>>
{
let mut image = ImageBuffer::new(
map.width as u32 * Chunk::SIZE as u32,
map.height as u32 * Chunk::SIZE as u32,
@@ -130,19 +151,22 @@ pub fn render_biome_map(map: &Map, biome_map: &BiomeMap) -> ImageBuffer<image::R
return image;
}
pub fn update_biome_map(map: &Map, biome_map: &BiomeMap, image: &mut ImageBuffer<image::Rgba<u8>, Vec<u8>>) {
pub fn update_biome_map(map: &Map, biome_map: &BiomeMap, image: &mut ImageBuffer<image::Rgba<u8>, Vec<u8>>)
{
let map_biome_count = map.biome_count as f32;
image.par_enumerate_pixels_mut().for_each(|(x, y, pixel)| {
let coord = HexCoord::from_grid_pos(x as usize, y as usize);
let biome_blend = biome_map.get_biome(x as i32, y as i32).unwrap();
let right = coord.get_neighbor(1);
let mut color = Oklaba::BLACK;
for i in 0..biome_blend.len() {
for i in 0..biome_blend.len()
{
let mut c: Oklaba = Hsla::hsl((i as f32 / map_biome_count) * 360.0, 0.8, 0.7).into();
c *= biome_blend[i];
color = Oklaba::add(c, color.into()).into();
}
if map.is_in_bounds(&right) {
if map.is_in_bounds(&right)
{
let h1 = map.sample_height(&coord);
let h2 = map.sample_height(&right);
color = get_height_color_blend(color.into(), h1, h2, 0.5).into();

55
engine/world_generation/src/map/mesh_chunk.rs
View File

@@ -6,7 +6,8 @@ use crate::hex_utils::HexCoord;
use super::chunk::Chunk;
pub struct MeshChunkData {
pub struct MeshChunkData
{
pub heights: [f32; Chunk::AREA],
pub textures: [[u32; 2]; Chunk::AREA],
pub min_height: f32,
@@ -14,13 +15,17 @@ pub struct MeshChunkData {
pub distance_to_land: [f32; Chunk::AREA],
}
impl MeshChunkData {
pub fn get_neighbors(&self, coord: &HexCoord) -> [f32; 6] {
impl MeshChunkData
{
pub fn get_neighbors(&self, coord: &HexCoord) -> [f32; 6]
{
let mut data = [self.min_height; 6];
let n_tiles = coord.get_neighbors();
for i in 0..6 {
for i in 0..6
{
let n = n_tiles[i];
if !n.is_in_bounds(Chunk::SIZE, Chunk::SIZE) {
if !n.is_in_bounds(Chunk::SIZE, Chunk::SIZE)
{
continue;
}
data[i] = self.heights[n.to_index(Chunk::SIZE)];
@@ -29,56 +34,70 @@ impl MeshChunkData {
return data;
}
pub fn get_neighbors_with_water_info(&self, coord: &HexCoord) -> ([(f32, Option<f32>); 6], bool) {
pub fn get_neighbors_with_water_info(&self, coord: &HexCoord) -> ([(f32, Option<f32>); 6], bool)
{
let mut has_land = false;
let mut data = [(self.min_height, None); 6];
let n_tiles = coord.get_neighbors();
for i in 0..6 {
for i in 0..6
{
let n = n_tiles[i];
if !n.is_in_bounds(Chunk::SIZE, Chunk::SIZE) {
if !n.is_in_bounds(Chunk::SIZE, Chunk::SIZE)
{
continue;
}
let idx = n.to_index(Chunk::SIZE);
data[i] = (self.heights[idx], Some(self.distance_to_land[idx]));
if data[i].0 > self.sealevel {
if data[i].0 > self.sealevel
{
has_land = true;
}
}
return (data, has_land);
}
pub fn caluclate_water_distances(data: &mut Vec<MeshChunkData>, height: usize, width: usize, range: usize) {
pub fn caluclate_water_distances(data: &mut Vec<MeshChunkData>, height: usize, width: usize, _range: usize)
{
let mut open: VecDeque<(HexCoord, f32, usize)> = VecDeque::new();
let mut closed: Vec<(HexCoord, f32)> = Vec::new();
for z in 0..height {
for x in 0..width {
// let mut closed: Vec<(HexCoord, f32)> = Vec::new();
for z in 0..height
{
for x in 0..width
{
let chunk = &mut data[z * height + x];
chunk.prepare_chunk_open(x * Chunk::SIZE, z * Chunk::SIZE, &mut open);
}
}
}
fn prepare_chunk_open(&mut self, offset_x: usize, offset_z: usize, open: &mut VecDeque<(HexCoord, f32, usize)>) {
for z in 0..Chunk::SIZE {
for x in 0..Chunk::SIZE {
fn prepare_chunk_open(&mut self, offset_x: usize, offset_z: usize, open: &mut VecDeque<(HexCoord, f32, usize)>)
{
for z in 0..Chunk::SIZE
{
for x in 0..Chunk::SIZE
{
let coord = HexCoord::from_grid_pos(x + offset_x, z + offset_z);
let idx = coord.to_chunk_local_index();
let h = self.heights[idx];
self.distance_to_land[idx] = if h > self.sealevel { 0.0 } else { 4.0 };
if h > self.sealevel {
if h > self.sealevel
{
open.push_back((coord, h, 0));
}
}
}
}
#[allow(dead_code)]
#[allow(unused)]
fn fill_chunk_borders(
&mut self,
chunks: &Vec<MeshChunkData>,
offset: IVec2,
open: &mut VecDeque<(HexCoord, f32, usize)>,
closed: &mut Vec<(HexCoord, f32)>,
) {
)
{
self.prepare_chunk_open(offset.x as usize * Chunk::SIZE, offset.y as usize * Chunk::SIZE, open);
todo!("Fill closed list with bordering tiles")
}