try to optimize memory usage a tiny bit by using u16 instead of string

godot/world/StateApi.gd

@@ -2,8 +2,8 @@ extends Node
 
 onready var server = $StateServer
 
-export var xsize = 512
-export var ysize = 512
+export var xsize = 16
+export var ysize = 16
 export var zsize = 16
 
 var Tilemap = preload("res://world/Tilemap.tscn")
@@ -11,6 +11,7 @@ var tilemaps = []
 
 func _ready():
 	server.generate_world(xsize, ysize, zsize)
+	print(server.get_tile_at(0,0,0))
 
 func respawn_tilemaps(amount: int):
 	tilemaps = []
@@ -28,7 +29,6 @@ func update_tiles(tile_positions: PoolVector3Array):
 	for tile in tile_positions:
 		tilemaps[tile.z].set_tile_graphics(Vector2(tile.x, tile.y),
 			get_tile_at(tile))
-		pass
 
 func _on_StateServer_request_init():
 	respawn_tilemaps(zsize - 1)

godot/world/Tilemap.gd

@@ -1,4 +1,4 @@
 extends TileMap
 
-func set_tile_graphics(pos: Vector2, type: String):
+func set_tile_graphics(pos: Vector2, id: int):
 	set_cell(pos.x,pos.y,0,false,false,false,Vector2(1,2))

routes-native/Cargo.toml

@@ -11,6 +11,7 @@ crate-type = ["cdylib"]
 [dependencies]
 gdnative = {version = "0.10", features = ["async"]}
 strum = { version = "0.24", features = ["derive"] }
+strum_macros = "0.24"
 # tokio = {version = "1.18.0", features = ["sync"]}
 # lazy_static = "1.4.0"
 # pathfinding = "3.0.12"

routes-native/src/stateserver.rs

@@ -40,8 +40,8 @@ impl StateServer {
     }
 
     #[export]
-    fn get_tile_at(&self, _owner: &Node, x: usize, y: usize, z: usize) -> &str {
-        self.world.get_tile_at(x, y, z).kind_to_string()
+    fn get_tile_at(&self, _owner: &Node, x: usize, y: usize, z: usize) -> u16 {
+        self.world.get_tile_at(x, y, z)
     }
 }
 

routes-native/src/stateserver/world.rs

@@ -6,12 +6,13 @@ pub struct World {
     xsize: usize,
     ysize: usize,
     zsize: usize,
-    tiles: Vec<Vec<Vec<tiles::Tile>>>,
+    tiles: Vec<Vec<Vec<u16>>>,
 }
 
 impl World {
-    pub fn get_tile_at(&self, x: usize, y: usize, z: usize) -> &tiles::Tile{
-        &self.tiles[x][y][z]
+    pub fn get_tile_at(&self, x: usize, y: usize, z: usize) -> u16{
+        //TODO: error handling, or maybe just do that in godot
+        self.tiles[x][y][z]
     }
     pub fn generate(&mut self)  -> Vector3Array{
         self.tiles = get_vec3(self.xsize, self.ysize, self.zsize);
@@ -19,9 +20,8 @@ impl World {
         for x in 0..self.xsize {
             for y in 0..self.ysize {
                 for z in 0..self.zsize {
-                    let tile = tiles::Tile::new(tiles::Tiletypes::Dirt);
                     ret.push(Vector3::new(x as f32, y as f32, z as f32));
-                    self.tiles[x][y][z] = tile;
+                    self.tiles[x][y][z] = tiles::Tiletypes::Dirt as u16;
                 }
             }
         }
@@ -37,14 +37,14 @@ impl World {
     }
 }
 
-fn get_vec3(xsize: usize, ysize: usize, zsize: usize) -> Vec<Vec<Vec<tiles::Tile>>> {
-    let mut zvec: Vec<tiles::Tile> = Vec::with_capacity(zsize);
-    zvec.resize(zsize, tiles::Tile::new(tiles::Tiletypes::Air));
+fn get_vec3(xsize: usize, ysize: usize, zsize: usize) -> Vec<Vec<Vec<u16>>> {
+    let mut zvec: Vec<u16> = Vec::with_capacity(zsize);
+    zvec.resize(zsize, 0);
 
-    let mut yvec: Vec<Vec<tiles::Tile>> = Vec::with_capacity(ysize);
+    let mut yvec: Vec<Vec<u16>> = Vec::with_capacity(ysize);
     yvec.resize(ysize, zvec.clone());
 
-    let mut xvec: Vec<Vec<Vec<tiles::Tile>>> = Vec::with_capacity(xsize);
+    let mut xvec: Vec<Vec<Vec<u16>>> = Vec::with_capacity(xsize);
     xvec.resize(ysize, yvec.clone());
 
     yvec.push(zvec);

routes-native/src/stateserver/world/tiles.rs

@@ -1,6 +1,8 @@
-use strum::AsRefStr;
+use strum::{AsRefStr, EnumIter, FromRepr, EnumDiscriminants};
 
-#[derive(Debug, Clone, AsRefStr, Copy)]
+
+#[derive(Debug, Clone, AsRefStr, Copy, EnumIter, FromRepr, EnumDiscriminants)]
+#[repr(u16)]
 pub enum Tiletypes {
     Air,
     Water,
@@ -16,9 +18,10 @@ pub struct Tile {
 
 impl Tile {
     pub fn new(kind: Tiletypes) -> Tile {
+
         Tile { kind }
     }
-    pub fn kind_to_string(&self) -> &str {
-        &self.kind.as_ref()
+    pub fn kind_to_string(&self) -> String {
+        self.kind.as_ref().to_string()
     }
 }