From b48459fceb92618ff0913ed8e20917267c4eb9d4 Mon Sep 17 00:00:00 2001
From: popertots <popertots@gmail.com>
Date: Fri, 20 Mar 2026 14:37:48 +0000
Subject: [PATCH] fix: distinguish air vs solid non-visible tiles
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Air (id=0) not in line of sight participates in depth fade (open space).
Solid terrain not visible is genuinely occluded — render black.
---
 src/world/tiles/tilemap_chunk.rs | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/src/world/tiles/tilemap_chunk.rs b/src/world/tiles/tilemap_chunk.rs
index 3bfffb8..6074dc5 100644
--- a/src/world/tiles/tilemap_chunk.rs
+++ b/src/world/tiles/tilemap_chunk.rs
@@ -66,7 +66,7 @@ impl TilemapChunkSpawner {
 }
 
 pub const FIXTURE_ROW_OFFSET: u16 = 6;
-pub const LAYER_ALPHA: f32 = 50_f32 / 255_f32;
+pub const LAYER_ALPHA: f32 = 41_f32 / 255_f32;
 
 fn tile_id_to_tileset_index(tile_id: u32) -> Option<u16> {
     if tile_id == 0 {
@@ -157,14 +157,12 @@ fn populate_chunk_tiles(
                         let is_visible = is_tile_visible_at_z(t, z_index);
                         let tile_data = if is_visible {
                             tile_for_depth(tileset_idx, z_diff)
+                        } else if t.id == 0 {
+                            tile_for_depth(0, z_diff)
                         } else {
                             TileData {
                                 tileset_index: 0,
-                                color: Color::srgb(
-                                    133_f32 / 255_f32,
-                                    167_f32 / 255_f32,
-                                    178_f32 / 255_f32,
-                                ),
+                                color: Color::BLACK,
                                 visible: true,
                             }
                         };