The order of elements on a set is undefined

This could lead to change in order, for example, when changing version
of Python. This change ensures the colours are always in the same order.

2 files changed, 2 insertions, 2 deletions

diff --git a/tools/png2sprites.py b/tools/png2sprites.py
index 7528fae..95e6492 100755
--- a/tools/png2sprites.py
+++ b/tools/png2sprites.py
@@ -109,7 +109,7 @@ def main():
             tile = [
                 data[x + i + ((y + j) * w)] for j in range(DEF_H) for i in range(DEF_W)
             ]
-            cols = set([c for c in tile if c != TRANS])
+            cols = sorted(set([c for c in tile if c != TRANS]))
 
             if not cols:
                 continue
diff --git a/tools/png2tiles.py b/tools/png2tiles.py
index 43eb1e0..55e7c53 100755
--- a/tools/png2tiles.py
+++ b/tools/png2tiles.py
@@ -97,7 +97,7 @@ def read_image(image_name, out, color):
             # get the attibutes of the tile
             # FIXME: this may not be right
             for i in range(0, len(tile), DEF_W):
-                cols = list(set(tile[i : i + DEF_W]))
+                cols = list(sorted(set(tile[i : i + DEF_W])))
 
                 if len(cols) > 2:
                     raise Exception(