[Add] Ammunition can now have accuracy (missiles etc..)

[Fix] Fixed a typo in weapon system.
[Add] New outfit.

dat/outfit.xml

@@ -279,6 +279,43 @@
    <speed>550</speed>
    <damage type="kinetic">20</damage>
   </specific>
+</outfit>
+ <outfit name="Banshee Launcher">
+  <general>
+   <max>2</max>
+   <tech>4</tech>
+   <license>Medium Weapon License</license>
+   <mass>10</mass>
+   <price>25000</price>
+   <gfx_store>bansheelauncher</gfx_store>
+   <description>The Banshee Launcher uses a quick action firing mechanism to be able to quickly launch the banshee rockets.  The only drawback is that this mechanism can only be used with light rockets, limiting the payload the rockets can have.</description>
+  </general>
+  <specific type="missile dumb" secondary="1">
+   <ammo>Banshee Rocket</ammo>
+   <delay>300</delay>
+  </specific>
+ </outfit>
+ <outfit name="Banshee Rocket">
+  <general>
+   <max>40</max>
+   <tech>7</tech>
+   <license>Medium Weapon License</license>
+   <mass>0</mass>
+   <price>100</price>
+   <description>The Banshee Rocket gets it's name from the wail it makes when launched.  They carry an EMP payload which is very helpful when attempting to disable ships.</description>
+   <gfx_store>banshee</gfx_store>
+  </general>
+  <specific type="missile dumb ammo">
+   <gfx>banshee</gfx>
+   <sound>missile</sound>
+   <spfx_shield>EmpS</spfx_shield>
+   <spfx_armour>EmpS</spfx_armour>
+   <duration>0.8</duration>
+   <accuracy>12</accuracy>
+   <thrust>0</thrust>
+   <speed>600</speed>
+   <damage type="emp">15</damage>
+  </specific>
  </outfit>
  <outfit name="Neutron Disruptor">
   <general>

dat/ship.xml

@@ -32,6 +32,8 @@
   <outfits>
     <outfit quantity="1">Lancelot Fighter Bay</outfit>
     <outfit quantity="100">Lancelot Fighter</outfit>
+    <outfit quantity="1">Banshee Launcher</outfit>
+    <outfit quantity="100">Banshee Rocket</outfit>
     <outfit quantity="2">Ripper MK2</outfit>
     <outfit quantity="2">Ragnarok Beam</outfit>
     <outfit quantity="2">Orion Beam</outfit>

src/outfit.c

@@ -774,7 +774,7 @@ static void outfit_parseSAmmo(Outfit* tmp, const xmlNodePtr parent) {
   tmp->u.amm.spfx_shield = -1;
   tmp->u.amm.sound       = -1;
 
-  do {
+  do { /* Load all the data. */
     /* Basic. */
     xmlr_float(node, "duration",  tmp->u.amm.duration);
     xmlr_float(node, "lockon",    tmp->u.amm.lockon);
@@ -783,6 +783,7 @@ static void outfit_parseSAmmo(Outfit* tmp, const xmlNodePtr parent) {
     xmlr_float(node, "thrust",    tmp->u.amm.thrust);
     xmlr_float(node, "turn",      tmp->u.amm.turn);
     xmlr_float(node, "speed",     tmp->u.amm.speed);
+    xmlr_float(node, "accuracy",  tmp->u.amm.accuracy);
     xmlr_float(node, "energy",    tmp->u.amm.energy);
     if(xml_isNode(node, "gfx")) {
       tmp->u.amm.gfx_space = xml_parseTexture(node,

src/outfit.h

@@ -131,6 +131,7 @@ typedef struct OutfitAmmoData_ {
   double lockon;        /**< Time it takes to lock on the target. */
   double resist;        /**< Lowers chance of jamming by this amount. */
 
+  double accuracy;      /**< Desviation accuracy. */
   double speed;         /**< Max speed. */
   double turn;          /**< Turn velocity. */
   double thrust;        /**< Acceleration. */

src/weapon.c

@@ -749,9 +749,7 @@ static Weapon* weapon_create(const Outfit* outfit, const double dir, const Vec2*
   w->target   = target; /* Non-Changeable. */
   w->outfit   = outfit; /* Non-Changeable. */
   w->update   = weapon_update;
-  w->think    = NULL;
   w->status   = WEAPON_STATUS_OK;
-  w->timer    = 0.0;
 
   switch(outfit->type) {
     /* Bolts treated together. */
@@ -816,7 +814,7 @@ static Weapon* weapon_create(const Outfit* outfit, const double dir, const Vec2*
           vect_angle(pos, &pilot_target->solid->pos);
       } else
         rdir = dir;
-      mass = 1.;
+      mass = 1.; /**< Needs a mass. */
       w->solid = solid_create(mass, rdir, pos, NULL);
       w->think = think_beam;
       w->timer = outfit->u.bem.duration;
@@ -829,6 +827,15 @@ static Weapon* weapon_create(const Outfit* outfit, const double dir, const Vec2*
   case OUTFIT_TYPE_MISSILE_SEEK_AMMO:
   case OUTFIT_TYPE_MISSILE_SEEK_SMART_AMMO:
     mass = w->outfit->mass;
+
+    rdir = dir;
+    if(outfit->u.amm.accuracy != 0.) {
+      rdir += NormalInverse(RNGF()*0.9 + 0.05) /* Get rid of extreme values. */
+        * outfit->u.amm.accuracy/2. * 1./180.*M_PI;
+      if((rdir > 2.*M_PI) || (rdir < 0.))
+        rdir = fmod(rdir, 2.*M_PI);
+    }
+
     w->lockon = outfit->u.amm.lockon;
     w->timer  = outfit->u.amm.duration;
     w->solid  = solid_create(mass, dir, pos, vel);
@@ -860,12 +867,11 @@ static Weapon* weapon_create(const Outfit* outfit, const double dir, const Vec2*
       dist = vect_dist(pos, &pilot_target->solid->pos);
 
       /* Aim. */
-      if(dist > outfit->u.blt.range * 1.2) {
-        x = pilot_target->solid->pos.x - pos->x;
-        y = pilot_target->solid->pos.y - pos->y;
-      } else {
-        /* Try to predict where the enemy will be. */
-        /* Time for shots to reach that distance. */
+      /*
+       * Try to predict where the enemy will be.
+       *
+       * Time for shots to reach that distance.
+       */
       t = dist / w->outfit->u.amm.speed;
 
       /* Position is calculated on where it should be. */
@@ -873,10 +879,16 @@ static Weapon* weapon_create(const Outfit* outfit, const double dir, const Vec2*
         - (pos->x + vel->x*t);
       y = (pilot_target->solid->pos.y + pilot_target->solid->vel.y*t)
         - (pos->y + vel->y*t);
-      }
+
       /* Set angle to face. */
       rdir = ANGLE(x, y);
     }
+    if(outfit->u.amm.accuracy != 0.) {
+      rdir += NormalInverse(RNGF()*0.9 + 0.05) /* Get rid of extreme values. */
+        * outfit->u.amm.accuracy/2. * 1./180.*M_PI;
+      if((rdir > 2.*M_PI) || (rdir < 0.))
+        rdir = fmod(rdir, 2.*M_PI);
+    }
 
     /* If thrust is 0. We assume it starts out at speed. */
     vectcpy(&v, vel);
@@ -889,7 +901,6 @@ static Weapon* weapon_create(const Outfit* outfit, const double dir, const Vec2*
     w->solid = solid_create(mass, rdir, pos, &v);
     if(w->outfit->u.amm.thrust != 0.)
       vect_pset(&w->solid->force, w->outfit->u.amm.thrust, rdir);
-    w->think = NULL; /* No AI. */
     w->voice = sound_playPos(w->outfit->u.amm.sound,
         w->solid->pos.x + w->solid->vel.x,
         w->solid->pos.y + w->solid->vel.y);
@@ -898,11 +909,24 @@ static Weapon* weapon_create(const Outfit* outfit, const double dir, const Vec2*
   /* Dumb missiles are a mix of missile and bolt. */
   case OUTFIT_TYPE_MISSILE_DUMB_AMMO:
     mass = w->outfit->mass;
-    w->timer = outfit->u.amm.duration;
-    w->solid = solid_create(mass, dir, pos, vel);
-    vect_pset(&w->solid->force, w->outfit->u.amm.thrust, dir);
-    w->think = NULL; /* No AI. */
 
+    rdir = dir;
+
+    if(outfit->u.amm.accuracy != 0.) {
+      rdir += NormalInverse(RNGF()*0.9 + 0.05) /* Get rid of extreme values. */
+        * outfit->u.amm.accuracy/2. * 1./180.*M_PI;
+      if((rdir > 2.*M_PI) || (rdir < 0.))
+        rdir = fmod(rdir, 2.*M_PI);
+    }
+
+    /* If thrust is 0. we assume it starts out at speed. */
+    if(outfit->u.amm.thrust == 0.)
+      vect_pset(&v, w->outfit->u.amm.speed, rdir);
+    else
+      vectnull(&v);
+
+    w->timer = outfit->u.amm.duration;
+    w->solid = solid_create(mass, rdir, pos, &v);
     w->voice = sound_playPos(w->outfit->u.amm.sound,
         w->solid->pos.x + w->solid->vel.x,
         w->solid->pos.y + w->solid->vel.y);