+ check if sectors/sectors2 directories exist before attempting to read them

diff --git a/minetestmapper/minetestmapper2.py b/minetestmapper/minetestmapper2.py
index b7264fe34b6b609008f6242f1e10e2bd1221b8a7..8dc3de2f4bbf6a0c4d9839650760281ae65bca02 100755 (executable)
--- a/minetestmapper/minetestmapper2.py
+++ b/minetestmapper/minetestmapper2.py
@@ -73,25 +73,28 @@ xlist = []
 zlist = []\r
 \r
 # List all sectors to memory and calculate the width and heigth of the resulting picture.\r
-for filename in os.listdir(path + "sectors2"):\r
-    for filename2 in os.listdir(path + "sectors2/" + filename):\r
-        x = hex_to_int(filename)\r
-        z = hex_to_int(filename2)\r
+if os.path.exists(path + "sectors2"):\r
+    for filename in os.listdir(path + "sectors2"):\r
+        for filename2 in os.listdir(path + "sectors2/" + filename):\r
+            x = hex_to_int(filename)\r
+            z = hex_to_int(filename2)\r
+            if x < sector_xmin or x > sector_xmax:\r
+                continue\r
+            if z < sector_zmin or z > sector_zmax:\r
+                continue\r
+            xlist.append(x)\r
+            zlist.append(z)\r
+\r
+if os.path.exists(path + "sectors"):\r
+    for filename in os.listdir(path + "sectors"):\r
+        x = hex4_to_int(filename[:4])\r
+        z = hex4_to_int(filename[-4:])\r
         if x < sector_xmin or x > sector_xmax:\r
             continue\r
         if z < sector_zmin or z > sector_zmax:\r
             continue\r
         xlist.append(x)\r
         zlist.append(z)\r
-for filename in os.listdir(path + "sectors"):\r
-    x = hex4_to_int(filename[:4])\r
-    z = hex4_to_int(filename[-4:])\r
-    if x < sector_xmin or x > sector_xmax:\r
-        continue\r
-    if z < sector_zmin or z > sector_zmax:\r
-        continue\r
-    xlist.append(x)\r
-    zlist.append(z)\r
 \r
 w = (max(xlist) - min(xlist)) * 16 + 16\r
 h = (max(zlist) - min(zlist)) * 16 + 16\r