Make shofixti system gen position independent.

(Except for the star background...  I can solve that later, if I
want to.)

sc2/src/uqm/plandata.c

@@ -539,6 +539,7 @@ STAR_DESC starmap_array[] =
 	{{1937, 9979}, MAKE_STAR (DWARF_STAR, RED_BODY, -1), 0, 1, 103},
 #endif
 
+	//{{2908,  269}, MAKE_STAR (DWARF_STAR, BLUE_BODY, -1), SHOFIXTI_DEFINED, 4, 82},
 	{{1004, 1083}, MAKE_STAR (DWARF_STAR, GREEN_BODY, -1), CXX_DEFINED, 2, 27, &slyDef},
 	{{1776, 1395}, MAKE_STAR (DWARF_STAR, YELLOW_BODY, -1), START_COLONY_DEFINED, 0, 98},
 
@@ -549,6 +550,8 @@ STAR_DESC starmap_array[] =
 	{{1752, 1450}, MAKE_STAR (DWARF_STAR, YELLOW_BODY, -1), SOL_DEFINED, 0, 129},
 
 
+	{{1848, 1469}, MAKE_STAR (DWARF_STAR, BLUE_BODY, -1), SHOFIXTI_DEFINED, 4, 82},
+
 	{{1751, 1479}, MAKE_STAR (GIANT_STAR, GREEN_BODY, -1), URQUAN_WRECK_DEFINED, 1, 59},
 	{{1707, 1501}, MAKE_STAR (DWARF_STAR, GREEN_BODY, -1), 0, 0, 52},
 

sc2/src/uqm/planets/generate/Makeinfo

@@ -4,4 +4,4 @@ uqm_CFILES="gendefault.c genand.c genburv.c genchmmr.c gencol.c gendru.c
 		genthrad.c gentrap.c genutw.c genvault.c genvux.c genwreck.c
 		genyeh.c genzfpscout.c genzoq.c"
 uqm_HFILES="genall.h gendefault.h"
-uqm_CXXFILES="cxx-generator.cpp gensly-modern.cpp"
+uqm_CXXFILES="cxx-generator.cpp gensly-modern.cpp genshof-modern.cpp"

sc2/src/uqm/planets/generate/genshof.c

@@ -129,6 +129,18 @@ GenerateShofixti_uninitNpcs (SOLARSYS_STATE *solarSys)
 static bool
 GenerateShofixti_generatePlanets (SOLARSYS_STATE *solarSys)
 {
+#define SHOF_SUN_COORD_X ( (SWORD) 2908 )
+#define SHOF_SUN_COORD_Y ( (SWORD) 269 )
+#define SHOF_SEED MAKE_DWORD( SHOF_SUN_COORD_X, SHOF_SUN_COORD_Y )
+
+	RandomContext_SeedRandom( SysGenRNG, SHOF_SEED );
+
+	// I need to pump it a single time, because the star background gen
+	// eats one random value.  I don't care if the background changes when
+	// the star moves.
+	(void) RandomContext_Random( SysGenRNG );
+
+
 	COUNT i;
 
 #define NUM_PLANETS 6