   sub_args[0] = atoi(arg);
   arg = strtok(NULL, ",");
   sub_args[1] = atoi(arg);
+}
+
+void set_window(int width){
+  window = width;
 }
 
 void loop(){ 

#define EASE_COUNT 32
#define POWER_EASE_COUNT 24
#define EASE_DELAY 2
#define POWER_EASE_DELAY 2
#define EASE_ANIM_MARGIN 15

#define ANIM_LED_COUNT 64

// would be nice to shift-in the new pixels from the back buffer
//efade is broken


#include <PololuLedStrip.h>
