World 0,0 is now at the center of the node texture

src/game/world/generator.rs

@@ -1,3 +1,4 @@
+use std::time::Instant;
 use cgmath::Vector3;
 use noise::{Perlin, NoiseFn};
 use rand::{Rng, prelude::ThreadRng};
@@ -16,21 +17,22 @@ impl WorldGen {
     /*
     *   Generate height map for given block position
     */
-    fn gen_height_map(x: usize, z: usize, rand: &mut ThreadRng, noise: &Perlin) -> ([[usize;block::SIZE]; block::SIZE], usize) {
-        let x = x * block::SIZE;
-        let z = z * block::SIZE;
+    fn gen_height_map(x: i32, z: i32, rand: &mut ThreadRng, noise: &Perlin) -> ([[usize;block::SIZE]; block::SIZE], usize) {
+        let size = block::SIZE as i32;
+        let x = x * size;
+        let z = z * size;
 
         // Generate map
         let mut max: usize = 0;
         let mut map = [[0_usize; block::SIZE]; block::SIZE];
-        for lx in 0..block::SIZE {
-            for lz in 0..block::SIZE {
+        for lx in 0..size {
+            for lz in 0..size {
                 let value = (noise.get([(x + lx) as f64 / SCALE, (z + lz) as f64 /SCALE]) + 1.0) / 2.0;
                 let mut h = (value * 30.0) as usize;
                 h += (rand.gen::<f32>() * 2.0) as usize;
                 if h == 0 { h = 1; }
                 if h > max { max = h; }
-                map[lx][lz] = h;
+                map[lx as usize][lz as usize] = h;
             }
         }
         (map, max)
@@ -44,8 +46,8 @@ impl WorldGen {
         let noise = Perlin::new();
 
         // Generate height map
-        let (map, _max) = WorldGen::gen_height_map(block_pos.x as usize, block_pos.z as usize, &mut rng, &noise);
-
+        let (map, _max) = WorldGen::gen_height_map(block_pos.x, block_pos.z, &mut rng, &noise);
+        
         // Fill
         for x in 0..block::SIZE {
             for z in 0..block::SIZE {