From 2335bd23e3b4e09177ff02e236612b78c1730b9c Mon Sep 17 00:00:00 2001
From: Kai Stevenson <kai@kaistevenson.com>
Date: Mon, 31 Aug 2026 23:36:08 -0700
Subject: argmax materials

---
 src/content/world/mines.rs | 40 +++++++++++++++++++++++++++++++---------
 1 file changed, 31 insertions(+), 9 deletions(-)

(limited to 'src/content/world/mines.rs')

diff --git a/src/content/world/mines.rs b/src/content/world/mines.rs
index d7e23bc..9e24a37 100644
--- a/src/content/world/mines.rs
+++ b/src/content/world/mines.rs
@@ -1,7 +1,11 @@
 use fastnoise_lite::{FastNoiseLite, FractalType};
 use glam::IVec2;
 
-use crate::{content::materials::MaterialId, proc_gen::Biome, sim::cell::Cell};
+use crate::{
+    content::materials::MaterialId,
+    proc_gen::{Biome, InterpolatedPixel, tileset_loader::TilePixelType},
+    sim::cell::Cell,
+};
 
 const ROUGHNESS: f32 = 0.375;
 
@@ -12,22 +16,40 @@ pub struct MinesBiome {
 impl MinesBiome {
     pub fn new() -> Self {
         let mut edge_roughness = FastNoiseLite::new();
-        edge_roughness.octaves = 2;
-        edge_roughness.fractal_type = FractalType::Ridged;
+        edge_roughness.set_fractal_type(Some(FractalType::Ridged));
+        edge_roughness.set_fractal_octaves(Some(2));
         MinesBiome { edge_roughness }
     }
 }
 
 impl Biome for MinesBiome {
-    fn cell(&self, solidity: f32, world: IVec2) -> Cell {
+    fn fragment(&self, pixel: InterpolatedPixel, world: IVec2) -> Cell {
         let world = world.as_vec2();
-
         let displacement = ROUGHNESS * self.edge_roughness.get_noise_2d(world.x, world.y);
 
-        if solidity + displacement <= 0.0 {
-            return Cell::void();
+        match pixel.interpolated_pixel_index {
+            0 => {
+                if pixel.interpolated_solidity + displacement <= 0.0 {
+                    return Cell::void();
+                }
+
+                Cell::from_material(MaterialId::Dirt)
+            }
+            12 => {
+                if pixel.interpolated_solidity + displacement <= 0.0 {
+                    return Cell::void();
+                }
+
+                Cell::from_material(MaterialId::Water)
+            }
+            13 => {
+                if pixel.interpolated_solidity + displacement <= 0.0 {
+                    return Cell::void();
+                }
+
+                Cell::from_material(MaterialId::Wood)
+            }
+            _ => Cell::void(),
         }
-
-        Cell::from_material(MaterialId::Dirt)
     }
 }
-- 
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