Fix bug in get_enclosing_parameters (#641)

Author: 4lve

pumpkin-world/src/biome/multi_noise.rs

@@ -275,12 +275,11 @@ fn get_batched_tree<T: Clone>(nodes: Vec<TreeNode<T>>) -> Vec<TreeNode<T>> {
 fn get_enclosing_parameters<T: Clone>(nodes: &[TreeNode<T>]) -> [ParameterRange; 7] {
     assert!(!nodes.is_empty(), "SubTree needs at least one child");
     let mut bounds = *nodes[0].bounds();
-    for node in nodes {
+    for node in nodes.iter().skip(1) {
         for (i, range) in node.bounds().iter().enumerate() {
-            bounds[i] = *range;
+            bounds[i] = bounds[i].combine(range);
         }
     }
-
     bounds
 }
 

pumpkin-world/src/generation/aquifer_sampler.rs

@@ -652,7 +652,6 @@ mod test {
 
     use crate::{
         block::ChunkBlockState,
-        chunk::CHUNK_WIDTH,
         generation::{
             GlobalRandomConfig, biome_coords,
             chunk_noise::{
@@ -702,6 +701,7 @@ mod test {
             FluidLevel::new(63, WATER_BLOCK),
             FluidLevel::new(-54, LAVA_BLOCK),
         ));
+        const CHUNK_WIDTH: usize = 16;
         let noise = ChunkNoiseGenerator::new(
             base_router,
             &RANDOM_CONFIG,