lua properties for get/set familiar.

src/common/kernel/magic.c

@@ -2086,6 +2086,13 @@ typedef struct familiar_data {
 	unit * familiar;
 } famililar_data;
 
+boolean
+is_familiar(const unit *u)
+{
+  attrib * a = a_find(u->attribs, &at_familiarmage);
+  return i2b(a!=NULL);
+}
+
 static void
 write_unit(const attrib * a, FILE * F)
 {
@@ -2162,11 +2169,35 @@ remove_familiar(unit *mage)
 	}
 }
 
-void
+boolean
 create_newfamiliar(unit * mage, unit * familiar)
 {
 	/* if the skill modifier for the mage does not yet exist, add it */
-	attrib * a = a_find(mage->attribs, &at_skillmod);
+	attrib *a;
+  attrib *afam = a_find(mage->attribs, &at_familiar);
+  attrib *amage = a_find(familiar->attribs, &at_familiarmage);
+
+  if ((afam==NULL || afam->data.v==NULL) && (amage==NULL || amage->data.v==NULL)) {
+		afam = a_add(&mage->attribs, a_new(&at_familiar));
+		afam->data.v = familiar;
+
+    amage = a_add(&familiar->attribs, a_new(&at_familiarmage));
+    amage->data.v = mage;
+  } else {
+    assert(afam->data.v == familiar);
+    assert(amage->data.v == mage);
+    if (afam->data.v != familiar || amage->data.v != mage) {
+      return false;
+    }
+  }
+
+  /* TODO: Diese Attribute beim Tod des Familiars entfernen: */
+	/* Wenn der Magier stirbt, dann auch der Vertraute */
+	add_trigger(&mage->attribs, "destroy", trigger_killunit(familiar));
+	/* Wenn der Vertraute stirbt, dann bekommt der Magier einen Schock */
+	add_trigger(&familiar->attribs, "destroy", trigger_shock(mage));
+
+  a = a_find(mage->attribs, &at_skillmod);
   while (a && a->type==&at_skillmod) {
     skillmod_data * smd = (skillmod_data *)a->data.v;
     if (smd->special==sm_familiar) break;
@@ -2178,25 +2209,7 @@ create_newfamiliar(unit * mage, unit * familiar)
     smd->special = sm_familiar;
     smd->skill=NOSKILL;
   }
-
-	a = a_find(mage->attribs, &at_familiar);
-	if (a==NULL) {
-		a = a_add(&mage->attribs, a_new(&at_familiar));
-		a->data.v = familiar;
-	} else assert(!a->data.v || a->data.v == familiar);
-	/* TODO: Diese Attribute beim Tod des Familiars entfernen: */
-
-	a = a_find(familiar->attribs, &at_familiarmage);
-	if (a==NULL) {
-		a = a_add(&familiar->attribs, a_new(&at_familiarmage));
-		a->data.v = mage;
-	} else assert(!a->data.v || a->data.v == mage);
-
-	/* Wenn der Magier stirbt, dann auch der Vertraute */
-	add_trigger(&mage->attribs, "destroy", trigger_killunit(familiar));
-	/* Wenn der Vertraute stirbt, dann bekommt der Magier einen Schock */
-	add_trigger(&familiar->attribs, "destroy", trigger_shock(mage));
-
+  return true;
 }
 
 static void *

src/common/kernel/magic.h

@@ -365,7 +365,7 @@ extern struct unit * get_clone_mage(const struct unit *u);
 extern struct attrib_type at_familiar;
 extern struct attrib_type at_familiarmage;
 extern void remove_familiar(struct unit * mage);
-extern void create_newfamiliar(struct unit * mage, struct unit * familiar);
+extern boolean create_newfamiliar(struct unit * mage, struct unit * familiar);
 extern void create_newclone(struct unit * mage, struct unit * familiar);
 extern struct unit * has_clone(struct unit * mage);
 

src/common/spells/spells.c

@@ -504,13 +504,6 @@ select_familiar(const race * magerace, magic_t magiegebiet)
 /* ------------------------------------------------------------- */
 /* der Vertraue des Magiers */
 
-boolean
-is_familiar(const unit *u)
-{
-  attrib * a = a_find(u->attribs, &at_familiarmage);
-  return i2b(a!=NULL);
-}
-
 static void
 make_familiar(unit *familiar, unit *mage)
 {

src/eressea/lua/unit.cpp

@@ -227,10 +227,30 @@ unit_addspell(unit& u, const char * name)
   if (!add) log_error(("spell %s could not be found\n", name));
 }
 
-static bool
+static unit *
 unit_isfamiliar(const unit& u)
 {
-  return is_familiar(&u)!=0;
+  attrib * a = a_find(u.attribs, &at_familiarmage);
+  if (a!=NULL) {
+    return (unit*)a->data.v;
+  }
+  return NULL;
+}
+
+static unit *
+unit_getfamiliar(const unit& u)
+{
+  attrib * a = a_find(u.attribs, &at_familiar);
+  if (a!=NULL) {
+    return (unit*)a->data.v;
+  }
+  return NULL;
+}
+
+static void
+unit_setfamiliar(unit& mage, unit& familiar)
+{
+  create_newfamiliar(&mage, &familiar);
 }
 
 static void
@@ -536,6 +556,9 @@ bind_unit(lua_State * L)
     .property("weight", &unit_weight)
     .property("capacity", &unit_capacity)
 
+    .property("is_familiar", &unit_isfamiliar)
+    .property("familiar", &unit_getfamiliar, &unit_setfamiliar)
+
     // orders:
     .def("add_order", &unit_addorder)
     .def("clear_orders", &unit_clearorders)
@@ -572,7 +595,6 @@ bind_unit(lua_State * L)
     .property("building", &unit_getbuilding, &unit_setbuilding)
     .property("ship", &unit_getship, &unit_setship)
     .property("region", &unit_getregion, &unit_setregion)
-    .property("is_familiar", &unit_isfamiliar)
     .property("spells", &unit_spells, return_stl_iterator)
     .property("number", &unit_getnumber, &unit_setnumber)
     .property("race", &unit_getrace, &unit_setrace)

src/res/messages.xml

@@ -954,7 +954,7 @@
       <arg name="target" type="region"/>
     </type>
     <text locale="de">"$unit($unit) in $region($region): '$order($command)' - $unit($unit) ruft Drachen nach $region($target)."</text>
-    <text locale="en">"$unit($unit) in $region($region): '$order($command)' - $unit($unit) calls dragons to $region($rtarget)."</text>
+    <text locale="en">"$unit($unit) in $region($region): '$order($command)' - $unit($unit) calls dragons to $region($target)."</text>
   </message>
   <message name="magiccreate_effect" section="magic">
     <type>