dungeon: randomize floor brick accents

2 files changed, 34 insertions, 1 deletions

diff --git a/assets/atlas.bmp b/assets/atlas.bmp
index 70dc15b..3ec946b 100644
--- a/assets/atlas.bmp
+++ b/assets/atlas.bmp
diff --git a/graphics/src/render.rs b/graphics/src/render.rs
index 996aa37..cc9847e 100644
--- a/graphics/src/render.rs
+++ b/graphics/src/render.rs
@@ -1,4 +1,9 @@
-use std::{f32, io::Write, time::Duration};
+use std::{
+	f32,
+	hash::{DefaultHasher, Hash, Hasher},
+	io::Write,
+	time::Duration,
+};
 
 use dungeon::{
 	Dungeon,
@@ -102,6 +107,12 @@ const ATLAS_INV_CONTAINER: (u16, u16) = (1, 1);
 const ATLAS_HEART_ICON: (u16, u16) = (2, 1);
 const ATLAS_DAMAGE_ICON: (u16, u16) = (3, 1);
 
+// Floor ext accent textures
+const ATLAS_FLOOR_EXT1: (u16, u16) = (0, 2);
+const ATLAS_FLOOR_EXT2: (u16, u16) = (1, 2);
+const ATLAS_FLOOR_EXT3: (u16, u16) = (2, 2);
+const ATLAS_FLOOR_EXT4: (u16, u16) = (3, 2);
+
 // Misc atlas.bmp textures
 //const ATLAS_ERROR: (u16, u16) = (3, 3);
 
@@ -388,6 +399,28 @@ impl Renderer {
 				TEXTURE_SIZE,
 				0.0,
 			);
+			if idx == ATLAS_FLOOR {
+				// add possible extentions
+				let mut hasher = DefaultHasher::new();
+				pos.hash(&mut hasher);
+				let idx_ext = match hasher.finish() % 20 {
+					0 => Some(ATLAS_FLOOR_EXT1),
+					5 => Some(ATLAS_FLOOR_EXT2),
+					10 => Some(ATLAS_FLOOR_EXT3),
+					15 => Some(ATLAS_FLOOR_EXT4),
+					_ => None,
+				};
+				if let Some(idx) = idx_ext {
+					rt.draw_atlas(
+						&self.textures.atlas,
+						idx,
+						x * TEXTURE_SIZE,
+						y * TEXTURE_SIZE,
+						TEXTURE_SIZE,
+						0.0,
+					);
+				}
+			}
 		}
 	}