[Add] Ai now responds on being attacked.

bin/Makefile

@@ -52,5 +52,5 @@ data: pack $(DATAFILES) ../src/pack.c ../utils/pack/main.c
 clean:
 	@echo -e "\tRemoving data.."
 	rm -rf $(OBJS) $(APPNAME) $(DATA) pack core
-	rm -rf ../lib/lua/*.o ../lib/lua/*.a
+	#rm -rf ../lib/lua/*.o ../lib/lua/*.a
 

scripts/ai/test.lua

@@ -3,18 +3,52 @@ control_rate = 2
 
 -- Required "control" function.
 function control()
-  say("IMA KILL YOU!!")
+  pushtask(0, "fly")
-  pushtask(0, "attack")
 end
 
+-- Required "attacked" function.
+function attacked(attacker)
+  task = taskname()
+  if task ~= "attack" and task ~= "runaway" then
+    pushtask(0, "attack", attacker)
+  end
+end
+
+-- Runs away.
+function runaway()
+  target = gettargetid()
+  dir = face(target, 1)
+  accel()
+  dist = getdist(getpos(target))
+
+  if dist > 800 then
+    say("So long Biatch!!")
+  end
+end
+
+-- Attack
 function attack()
-  target = 0
+  target = gettargetid()
   dir = face(target)
   dist = getdist(getpos(target))
-  if dir < 10 and dist > 300 then
+
+  if parmor() < 70 then
+    poptask()
+    pushtask(0, "runaway", target)
+  elseif dir < 10 and dist > 300 then
     accel()
   elseif dir < 10 and dist < 300 then
     shoot()
   end
 end
 
+-- Fly to the player.
+function fly()
+  target = 0
+  dir = face(target)
+  dist = getdist(getpos(target))
+  if dir < 10 and dist > 300 then
+    accel()
+  end
+end
+

src/ai.c

@@ -59,6 +59,8 @@ static int ai_accel(lua_State* L); // Accelerate.
 
 // Internal C routines.
 static void ai_freetask(Task* t);
+// External C routines.
+void ai_attacked(Pilot* attacked, const unsigned int attacker); // weapon.c
 // Ai routines for Lua.
 // Tasks.
 static int ai_pushtask(lua_State* L);     // pushtask(string, number/pointer, number)
@@ -67,6 +69,10 @@ static int ai_taskname(lua_State* L);     // Number taskname.
 // Consult values.
 static int ai_gettarget(lua_State* L);    // Pointer gettarget()
 static int ai_gettargetid(lua_State* L);  // Number gettargetis()
+static int ai_armor(lua_State* L);        // armor()
+static int ai_shield(lua_State* L);       // shield()
+static int ai_parmor(lua_State* L);       // parmor()
+static int ai_pshield(lua_State* L);      // pshield()
 static int ai_getdistance(lua_State* L);  // Number getdist(Vec2)
 static int ai_getpos(lua_State* L);       // getpos(number/pilot)
 static int ai_minbrakedist(lua_State* L); // Number minbrakedist()
@@ -122,6 +128,10 @@ int ai_init(void) {
   // Consult.
   lua_register(L, "gettarget",    ai_gettarget);
   lua_register(L, "gettargetid",  ai_gettargetid);
+  lua_register(L, "armor",        ai_armor);
+  lua_register(L, "shield",       ai_shield);
+  lua_register(L, "parmor",       ai_parmor);
+  lua_register(L, "pshield",      ai_pshield);
   lua_register(L, "getdist",      ai_getdistance);
   lua_register(L, "getpos",       ai_getpos);
   lua_register(L, "minbrakedist", ai_minbrakedist);
@@ -129,7 +139,7 @@ int ai_init(void) {
   lua_register(L, "ismaxvel",     ai_ismaxvel);
   lua_register(L, "isstopped",    ai_isstopped);
   lua_register(L, "isenemy",      ai_isenemy);
-  lua_register(L, "isally",     ai_isally);
+  lua_register(L, "isally",       ai_isally);
   // Movement.
   lua_register(L, "accel",        ai_accel);
   lua_register(L, "turn",         ai_turn);
@@ -189,6 +199,14 @@ void ai_think(Pilot* pilot) {
   if(pilot_primary) pilot_shoot(pilot, 0); // AMG, he's gunna shoot!
 }
 
+// Pilot is attacked.
+void ai_attacked(Pilot* attacked, const unsigned int attacker) {
+  cur_pilot = attacked;
+  lua_getglobal(L, "attacked");
+  lua_pushnumber(L, attacker);
+  lua_pcall(L, 1, 0, 0);
+}
+
 // =====================
 // INTERNAL C FUNCTIONS.
 // =====================
@@ -197,8 +215,8 @@ void ai_think(Pilot* pilot) {
 static void ai_freetask(Task* t) {
   if(t->next) ai_freetask(t->next); // Woot, recursive freeing!
 
-  if(t->name)    free(t->name);
+  if(t->name)               free(t->name);
-  if(t->target) free(t->target);
+  if(t->dtype == TYPE_PTR)  free(t->target);
   free(t);
 }
 
@@ -257,7 +275,7 @@ static int ai_poptask(lua_State* L) {
 // Grab the current tasks name.
 static int ai_taskname(lua_State* L) {
   if(cur_pilot->task) lua_pushstring(L, cur_pilot->task->name);
-  else lua_pushnil(L);
+  else lua_pushstring(L, "none");
   return 1;
 }
 
@@ -279,6 +297,30 @@ static int ai_gettargetid(lua_State* L) {
   return 0;
 }
 
+// Get the pilots armor.
+static int ai_armor(lua_State* L) {
+  lua_pushnumber(L, cur_pilot->armor);
+  return 1;
+}
+
+// Get pilots shield.
+static int ai_shield(lua_State* L) {
+  lua_pushnumber(L, cur_pilot->shield);
+  return 1;
+}
+
+// Get the pilot's armor in percentage.
+static int ai_parmor(lua_State* L) {
+  lua_pushnumber(L, cur_pilot->armor / cur_pilot->ship->armor * 100.);
+  return 1;
+}
+
+// Get the pilot's shield in percentage.
+static int ai_pshield(lua_State* L) {
+  lua_pushnumber(L, cur_pilot->shield / cur_pilot->ship->shield * 100.);
+  return 1;
+}
+
 // Get the distance from the pointer.
 static int ai_getdistance(lua_State* L) {
   MIN_ARGS(1);

src/pilot.c

@@ -85,7 +85,7 @@ void pilot_shoot(Pilot* p, const int secondary) {
     // Primary weapons.
     if(!p->outfits) return; // No outfits.
 
-    for(i = 0; p->outfits[i].outfit; i++) // Cycle through outfits to find weapons.
+    for(i = 0; i < p->noutfits; i++) // Cycle through outfits to find weapons.
       if(outfit_isWeapon(p->outfits[i].outfit) || // Is a weapon or launch?
             outfit_isLauncher(p->outfits[i].outfit))
         // Ready to shoot again.
@@ -194,25 +194,20 @@ void pilot_init(Pilot* pilot, Ship* ship, char* name, Faction* faction, const do
   pilot->outfits = NULL;
   ShipOutfit* so;
   if(ship->outfit) {
-    int noutfits = 0;
+    pilot->noutfits = 0;
     for(so = ship->outfit; so; so = so->next) {
-      pilot->outfits = realloc(pilot->outfits, (noutfits+1)*sizeof(PilotOutfit));
+      pilot->outfits = realloc(pilot->outfits, (pilot->noutfits+1)*sizeof(PilotOutfit));
-      pilot->outfits[noutfits].outfit = so->data;
+      pilot->outfits[pilot->noutfits].outfit = so->data;
-      pilot->outfits[noutfits].quantity = so->quantity;
+      pilot->outfits[pilot->noutfits].quantity = so->quantity;
-      pilot->outfits[noutfits].timer = 0;
+      pilot->outfits[pilot->noutfits].timer = 0;
-      noutfits++;
+      (pilot->noutfits)++;
     }
-    // Sentinal.
-    pilot->outfits = realloc(pilot->outfits, (noutfits+1)*sizeof(PilotOutfit));
-    pilot->outfits[noutfits].outfit = NULL;
-    pilot->outfits[noutfits].quantity = 0;
-    pilot->outfits[noutfits].timer = 0;
   }
 
   if(flags & PILOT_PLAYER) {
     pilot->think = player_think; // Players don't need to thing! :P
     pilot->render = NULL;
-    pilot->properties |= PILOT_PLAYER;
+    pilot_setFlag(pilot, PILOT_PLAYER); // It's a player!
     player = pilot;
   } else {
     pilot->think = ai_think;

src/pilot.h

@@ -10,8 +10,14 @@
 #define PILOT_SIZE_APROX  0.8
 #define PILOT_DISABLED    0.2 // Based on armor percentage.
 
-// Creation flags.
+// Flags.
-#define PILOT_PLAYER    1 // Pilot is a player.
+// Creation.
+#define PILOT_PLAYER        (1<<0) // Pilot is a player.
+// Dynamic.
+#define pilot_isFlag(p,f)   (p->flags & f)
+#define pilot_setFlag(p,f)  (p->flags |= f)
+#define pilot_rmFlag(p,f)   (p->flags ^= f)
+#define PILOT_ATTACKED      (1<<9) // Pilot is under attack.
 
 typedef struct {
   Outfit* outfit; // Associated outfit.
@@ -40,8 +46,9 @@ typedef struct Pilot {
 
   // Outfit management.
   PilotOutfit* outfits;
+  int noutfits;
 
-  unsigned int properties; // Used for AI etc.
+  unsigned int flags; // Used for AI etc.
 
   // AI.
   Task* task; // Current action.

src/weapon.c

@@ -15,6 +15,9 @@
 extern Pilot** pilot_stack;
 extern int pilots;
 
+// Ai stuff.
+extern void ai_attacked(Pilot* attacked, const unsigned int attacker);
+
 typedef struct Weapon {
   Solid* solid; // Actually has its own solid. :D
 
@@ -124,7 +127,13 @@ static void weapon_update(Weapon* w, const double dt, WeaponLayer layer) {
           !areAllies(pilot_get(w->parent)->faction, pilot_stack[i]->faction) &&
           CollideSprite(w->outfit->gfx_space, wsx, wsy, &w->solid->pos,
           pilot_stack[i]->ship->gfx_space, psx, psy, &pilot_stack[i]->solid->pos)) {
+
+      if(i != 0)
+        // Inform the ai it has been attacked. Useless if we are player.
+        ai_attacked(pilot_stack[i], w->parent);
+      // Inform the ship that it should take some damage.
       pilot_hit(pilot_stack[i], w->outfit->damage_shield, w->outfit->damage_armor);
+      // No need for the weapon particle anymore.
       weapon_destroy(w, layer);
       return;
     }