1 files changed, 56 insertions, 0 deletions
diff --git a/src/uqm/grpintrn.h b/src/uqm/grpintrn.h
new file mode 100644
index 0000000..d2136a5
--- /dev/null
+++ b/src/uqm/grpintrn.h
@@ -0,0 +1,56 @@
+#ifndef _GRPINTRN_H
+#define _GRPINTRN_H
+
+// For IPGROUP
+#include "grpinfo.h"
+
+// For SHIP_FRAGMENT
+#include "races.h"
+
+// For GAME_STATE_FILE
+#include "state.h"
+
+//#define DEBUG_GROUPS
+
+// A group header describes battle groups present in a star system. There is
+//    at most 1 group header per system.
+// 'Random' group info file (RANDGRPINFO_FILE) always contains only one
+//    group header record, which describes the last-visited star system,
+//    (which may be the current system). Thus the randomly generated groups
+//    are valid for 7 days (set in PutGroupInfo) after the player leaves 
+//    the system, or until the player enters another star system.
+typedef struct
+{
+	BYTE NumGroups;
+	BYTE day_index, month_index;
+	COUNT star_index, year_index;
+			// day_index, month_index, year_index specify when
+			//   random groups expire (if you were to leave the system
+			//   by going to HSpace and stay there till such time)
+			// star_index is the index of a star this group header
+			//   applies to; ~0 means uninited
+	DWORD GroupOffset[NUM_SAVED_BATTLE_GROUPS + 1];
+			// Absolute offsets of group definitions in a state file
+			// Group 0 is a list of groups present in solarsys
+			//    (RANDGRPINFO_FILE only)
+			// Groups 1..max are definitions of actual battle groups
+			//    containing ship makeup and status
+
+	// Each group has the following format:
+	// 1 byte, RaceType (LastEncGroup in Group 0)
+	// 1 byte, NumShips (NumGroups in Group 0)
+	// Ships follow:
+	// 1 byte, RaceType
+	// 16 bytes, part of SHIP_FRAGMENT struct 
+        //                  (part of IP_GROUP struct in Group 0)
+
+} GROUP_HEADER;
+
+void ReadGroupHeader (GAME_STATE_FILE *fp, GROUP_HEADER *pGH);
+void WriteGroupHeader (GAME_STATE_FILE *fp, const GROUP_HEADER *pGH);
+void ReadShipFragment (GAME_STATE_FILE *fp, SHIP_FRAGMENT *FragPtr);
+void WriteShipFragment (GAME_STATE_FILE *fp, const SHIP_FRAGMENT *FragPtr);
+void ReadIpGroup (GAME_STATE_FILE *fp, IP_GROUP *GroupPtr);
+void WriteIpGroup (GAME_STATE_FILE *fp, const IP_GROUP *GroupPtr);
+
+#endif