client.py: abstract number of 5x7 segments

python/client.py

@@ -11,12 +11,14 @@ if SPLIT:
   SPLIT_N = SPLIT[1]
   SPLIT_I = SPLIT[0]-1
 
+NUM_SEG_X = 96
+NUM_SEG_Y = 10
 PWIDTH = 5
-WIDTH = PWIDTH*96/SPLIT_N
+WIDTH = PWIDTH*NUM_SEG_X/SPLIT_N
 WOFFSET = WIDTH*SPLIT_I
 PHEIGHT = 7
 PPAD = 5
-HEIGHT = PHEIGHT*10
+HEIGHT = PHEIGHT*NUM_SEG_Y
 
 import sys