From e50565fb55b7720e9dbcb432dd3e0e5ca63bd59e Mon Sep 17 00:00:00 2001
From: Alexander Rosenberg <zanderpkg@pm.me>
Date: Sun, 3 May 2026 16:38:51 -0700
Subject: [PATCH] Fix width and height calculations

---
 tetris.py | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/tetris.py b/tetris.py
index 8181c24..fb3c86c 100644
--- a/tetris.py
+++ b/tetris.py
@@ -76,22 +76,25 @@ class Tetromino(NamedTuple):
     @property
     @lru_cache(maxsize=16)
     def bounding_box_width(self):
-        def ctz(arr: list):
-            for i, c in enumerate(reversed(arr)):
-                if c:
-                    return i
-            return len(arr)
-
-        return max(map(lambda r: len(r) - ctz(r), self.shape))
+        start = self.width
+        end = 0
+        for row in self.shape:
+            for x, cell in enumerate(row):
+                if cell:
+                    end = max(end, x + 1)
+                    start = min(start, x)
+        return end - start
 
     @property
     @lru_cache(maxsize=16)
     def bounding_box_height(self):
-        for y, row in reversed(list(enumerate(self.shape))):
-            for x, cell in enumerate(row):
-                if cell:
-                    return y + 1
-        return 0
+        start = self.height
+        end = 0
+        for y, row in enumerate(self.shape):
+            if any(row):
+                end = max(end, y + 1)
+                start = min(start, y)
+        return end - start
 
     def rotated(self, times: int):
         """Return self rotated TIMES times to the right."""