[Add] Added target_prev keybind.

src/input.c

@@ -36,7 +36,7 @@ const char* keybindNames[] = {
 	/* Movement. */
   "accel", "left", "right", "reverse", "afterburn",
   /* Targetting. */
-  "target", "target_nearest", "target_hostile",
+  "target", "target_prev", "target_nearest", "target_hostile",
   /* Fighting. */
   "primary", "face", "board",
   /* Escorts. */
@@ -73,6 +73,7 @@ void input_setDefault(void) {
   input_setKeybind("reverse",         KEYBIND_KEYBOARD, SDLK_s,           KMOD_ALL,   0);
   /* Targetting. */
   input_setKeybind("target",          KEYBIND_KEYBOARD, SDLK_TAB,         KMOD_NONE,  0);
+  input_setKeybind("target_prev",     KEYBIND_KEYBOARD, SDLK_TAB,         KMOD_RCTRL, 0);
   input_setKeybind("target_nearest",  KEYBIND_KEYBOARD, SDLK_t,           KMOD_NONE,  0);
   input_setKeybind("target_hostile",  KEYBIND_KEYBOARD, SDLK_r,           KMOD_NONE,  0);
   /* Combat. */
@@ -285,6 +286,9 @@ static void input_key(int keynum, double value, int kabs) {
   else if(INGAME() && NODEAD() && KEY("target")) {
     if(value == KEY_PRESS) player_targetNext();
   }
+  else if(INGAME() && NODEAD() && KEY("target_prev")) {
+    if(value == KEY_PRESS) player_targetPrev();
+  }
   else if(INGAME() && NODEAD() && KEY("target_nearest")) {
     if(value == KEY_PRESS) player_targetNearest();
   }

src/pilot.c

@@ -58,6 +58,7 @@ extern void player_dead(void);
 extern void player_destroyed(void);
 extern int gui_load(const char* name);
 /* Internal. */
+static int pilot_getStackPos(const unsigned int id);
 static void pilot_shootWeapon(Pilot* p, PilotOutfit* w);
 static void pilot_update(Pilot* pilot, const double dt);
 static void pilot_hyperspace(Pilot* pilot);
@@ -68,13 +69,13 @@ static Fleet* fleet_parse(const xmlNodePtr parent);
 static void pilot_dead(Pilot* p);
 
 /**
- * @fn unsinged int pilot_getNextID(const unsigned int id)
+ * @fn static int pilot_getStackPos(const unsigned int id)
  *
- * @brief Get the next pilot on id.
- *    @param id ID of current pilot.
- *    @return ID of next pilot of PLAYER_ID if no next pilot.
+ * @brief Get the pilots position in the stack.
+ *    @param id ID of the pilot to get.
+ *    @return Position of pilot in stack or -1 if not found.
  */
-unsigned int pilot_getNextID(const unsigned int id) {
+static int pilot_getStackPos(const unsigned int id) {
    /* Binary search. */
   int l, m, h;
   l = 0;
@@ -83,13 +84,44 @@ unsigned int pilot_getNextID(const unsigned int id) {
     m = (l+h) >> 1; /* For impossible overflow returning negative value. */
     if(pilot_stack[m]->id > id) h = m-1;
     else if(pilot_stack[m]->id < id) l = m+1;
-    else break;
+    else return m;
   }
 
-  if(m == (pilot_nstack-1)) return PLAYER_ID;
+  /* Not found. */
+  return -1;
+}
+
+/**
+ * @fn unsinged int pilot_getNextID(const unsigned int id)
+ *
+ * @brief Get the next pilot on id.
+ *    @param id ID of current pilot.
+ *    @return ID of next pilot of PLAYER_ID if no next pilot.
+ */
+unsigned int pilot_getNextID(const unsigned int id) {
+  int m;
+  m = pilot_getStackPos(id);
+
+  if((m == (pilot_nstack-1)) || (m == -1)) return PLAYER_ID;
   else return pilot_stack[m+1]->id;
 }
 
+/**
+ * @fn unsigned int pilot_getPrevID(const unsigned int id)
+ *
+ * @brief Get the previous pilot based on ID.
+ *    @param id ID of the current pilot.
+ *    @return ID of previous pilot or PLAYER_ID if no previous pilot.
+ */
+unsigned int pilot_getPrevID(const unsigned int id) {
+  int m;
+  m = pilot_getStackPos(id);
+
+  if(m == -1) return PLAYER_ID;
+  else if(m == 0) return pilot_stack[pilot_nstack-1]->id;
+  else return pilot_stack[m-1]->id;
+}
+
 /**
  * @brief Get the nearest enemy to the pilot.
  *    @param p Pilot to get his nearest enemy.
@@ -139,19 +171,16 @@ unsigned int pilot_getNearestPilot(const Pilot* p) {
 
 /* Pull a pilot out of the pilot_stack based on id. */
 Pilot* pilot_get(const unsigned int id) {
+  int m;
+
   if(id == PLAYER_ID) return player; /* Special case player. */
 
-  /* Binary search. */
-  int l, m, h;
-  l = 0;
-  h = pilot_nstack-1;
-  while(l <= h) {
-    m = (l+h)>>1;
-    if(pilot_stack[m]->id > id) h = m-1;
-    else if(pilot_stack[m]->id < id) l = m+1;
-    else return pilot_stack[m];
-  }
+  m = pilot_getStackPos(id);
+
+  if(m == -1)
     return NULL;
+  else
+    return pilot_stack[m];
 }
 
 /* Grab a fleet out of the stack. */

src/pilot.h

@@ -222,6 +222,7 @@ typedef struct Fleet_ {
 extern Pilot* player; /* The player. */
 Pilot* pilot_get(unsigned int id);
 unsigned int pilot_getNextID(const unsigned int id);
+unsigned int pilot_getPrevID(const unsigned int id);
 unsigned int pilot_getNearestEnemy(const Pilot* p);
 unsigned int pilot_getNearestHostile(void); /* Only for the player. */
 unsigned int pilot_getNearestPilot(const Pilot* p);

src/player.c

@@ -1975,6 +1975,16 @@ void player_targetNext(void) {
     player_playSound(snd_target, 1);
 }
 
+/**
+ * @fn
+ */
+void player_targetPrev(void) {
+  player->target = pilot_getPrevID(player->target);
+
+  if(player->target != PLAYER_ID)
+    player_playSound(snd_target, 1);
+}
+
 /**
  * @fn player_targetNearest(void)
  *

src/player.h

@@ -74,6 +74,7 @@ int player_missionAlreadyDone(int id);
 /* Keybind actions. */
 void player_targetHostile(void);
 void player_targetNext(void);
+void player_targetPrev(void);
 void player_targetNearest(void);
 void player_setRadarRel(int mod);
 void player_secondaryNext(void);