101 lines
3.1 KiB
Rust
101 lines
3.1 KiB
Rust
use gdnative::prelude::*;
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use rand::prelude::StdRng;
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use rand::prelude::*;
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use rand_seeder::Seeder;
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use strum::EnumCount;
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mod tiles;
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pub struct World {
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pub xsize: usize,
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pub ysize: usize,
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pub zsize: usize,
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tiles: Vec<Vec<Vec<tiles::Tiletypes>>>,
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seed: String,
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tileattributes: tiles::Attributelists,
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}
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impl World {
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pub fn get_tile_at(&self, x: usize, y: usize, z: usize) -> u16 {
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self.tiles[x][y][z] as u16
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}
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pub fn is_tile_hidden(&self, x: usize, y: usize, z: usize) -> bool {
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if x == self.xsize - 1 || y == self.ysize - 1 || z == self.zsize - 1 {
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return false;
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}
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if !tiles::Tile::new(self.tiles[x + 1][y][z]).hide_top_left
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|| !tiles::Tile::new(self.tiles[x][y + 1][z]).hide_top_right
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|| !tiles::Tile::new(self.tiles[x][y][z + 1]).hide_below
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{
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return false;
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}
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true
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}
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pub fn generate(&mut self) -> Vector3Array {
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let mut rng: StdRng = Seeder::from(self.seed.to_owned()).make_rng();
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self.tiles = get_vec3(self.xsize, self.ysize, self.zsize);
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let mut ret: Vector3Array = Vector3Array::new();
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for x in 0..self.xsize {
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for y in 0..self.ysize {
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for z in 0..self.zsize {
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ret.push(Vector3::new(x as f32, y as f32, z as f32));
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self.tiles[x][y][z] = self.new_tile_init_step(x, y, z, &mut rng)
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}
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}
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}
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ret
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}
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fn new_tile_init_step(&self, x: usize, y: usize, z: usize, rng: &mut StdRng) -> tiles::Tiletypes {
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// first generate bedrock
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if z == 0 {
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if y == 0 || x == 0 || y == self.ysize - 1 || x == self.xsize - 1{
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return tiles::Tiletypes::Water;
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}
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let random = rng.gen_range(0..3) as u8;
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match random {
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0 => return tiles::Tiletypes::Grass,
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_ => return self.tileattributes.bedrock.choose(rng).unwrap().to_owned(),
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}
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}
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// then make sure the top row of tiles is air
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if z == self.zsize - 1
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|| !tiles::Tile::new(self.tiles[x][y][z - 1]).is_support
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|| tiles::Tile::new(self.tiles[x][y][z - 1]).must_be_on_top
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{
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return tiles::Tiletypes::Air;
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}
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// if no tile fits, then return air
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tiles::Tiletypes::Air
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}
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pub fn new(xsize: usize, ysize: usize, zsize: usize, seed: String) -> World {
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World {
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xsize,
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ysize,
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zsize,
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tiles: get_vec3(xsize, ysize, zsize),
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seed,
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tileattributes: tiles::Attributelists::new(),
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}
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}
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}
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fn get_vec3(xsize: usize, ysize: usize, zsize: usize) -> Vec<Vec<Vec<tiles::Tiletypes>>> {
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let mut zvec: Vec<tiles::Tiletypes> = Vec::with_capacity(zsize);
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zvec.resize(zsize, tiles::Tiletypes::Air);
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let mut yvec: Vec<Vec<tiles::Tiletypes>> = Vec::with_capacity(ysize);
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yvec.resize(ysize, zvec.clone());
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let mut xvec: Vec<Vec<Vec<tiles::Tiletypes>>> = Vec::with_capacity(xsize);
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xvec.resize(ysize, yvec.clone());
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yvec.push(zvec);
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xvec.push(yvec);
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xvec
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}
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