store results in memory

include/window_state.h

@@ -3,7 +3,7 @@
 
 #include "common.h"
 #include <stddef.h>
-#define GRAPH_DAYS 30
+#include <time.h>
 
 enum mode_t {
   WINDOW = 0,
@@ -21,4 +21,8 @@ size_t get_intention_size();
 Mode get_mode();
 void set_mode(Mode mode);
 
+// returns 1 for win, 0 for loss
+U32 get_result(struct tm *time);
+void set_result(struct tm *time, U32 result);
+
 #endif