#include <time.h>
+#include "../types.h"
-/* given a particular time (expressed in seconds since the unix
- * epoch), compute position on the earth (lat, lon) such that sun is
- * directly overhead. (lat, lon are reported in radians */
+/* update the cur_time_params structure with the current sun position */
+void fgUpdateSunPos(struct fgCartesianPoint scenery_center);
void fgSunPosition(time_t ssue, double *lon, double *lat);