From 5e68d640855db3e0f3a5c3a9c41e5d1a791d3e13 Mon Sep 17 00:00:00 2001
From: Allanis <allanis@saracraft.net>
Date: Fri, 22 Mar 2013 18:44:29 +0000
Subject: [PATCH] [Fix] Uninitailized code error.

---
 src/ai.c | 26 +++++++++++++++-----------
 1 file changed, 15 insertions(+), 11 deletions(-)

diff --git a/src/ai.c b/src/ai.c
index d8b250a..7db97a1 100644
--- a/src/ai.c
+++ b/src/ai.c
@@ -331,9 +331,10 @@ void ai_think(Pilot* pilot) {
   L = cur_pilot->ai->L; // Set the AI profile to the current pilot's.
 
   // Clean up some variables.
-  pilot_acc = pilot_turn = 0.;
-  pilot_flags = 0;
-  pilot_target = 0;
+  pilot_acc     = 0.;
+  pilot_turn    = 0.;
+  pilot_flags   = 0;
+  pilot_target  = 0;
 
   // Control function if pilot is idle or tick is up.
   if((cur_pilot->tcontrol < SDL_GetTicks()) || (cur_pilot->task == NULL)) {
@@ -341,7 +342,7 @@ void ai_think(Pilot* pilot) {
     lua_getglobal(L, "control_rate");
     cur_pilot->tcontrol = SDL_GetTicks() + 1000*(int)lua_tonumber(L, -1);
   }
-  if(cur_pilot->task != NULL)
+  if(cur_pilot->task)
     // Pilot has a currently running task.
     ai_run(cur_pilot->task->name);
 
@@ -535,8 +536,11 @@ static int ai_pshield(lua_State* L) {
 
 // Get the distance from the pointer.
 static int ai_getdistance(lua_State* L) {
+  Vec2* vect;
+
   MIN_ARGS(1);
-  Vec2* vect = (Vec2*)lua_topointer(L,1);
+  vect = (lua_islightuserdata(L,1)) ?
+    (Vec2*)lua_topointer(L,1) : NULL;
   lua_pushnumber(L, vect_dist(vect, &cur_pilot->solid->pos));
   return 1;
 }
@@ -672,16 +676,16 @@ static int ai_face(lua_State* L) {
   vect_cset(&sv, VX(cur_pilot->solid->pos) + FACE_WVEL*VX(cur_pilot->solid->vel),
             VY(cur_pilot->solid->pos) + FACE_WVEL*VY(cur_pilot->solid->vel));
 
-  if(v != NULL)
-    // Target is static.
-    diff = angle_diff(cur_pilot->solid->dir,
-                      (n==-1) ? VANGLE(cur_pilot->solid->pos) :
-                                vect_angle(&cur_pilot->solid->pos, v));
-  else
+  if(v == NULL)
     // Target is dynamic.
     diff = angle_diff(cur_pilot->solid->dir,
                       (n==-1) ? VANGLE(sv) :
                                 vect_angle(&sv, &tv));
+  else
+    // Target is static.
+    diff = angle_diff(cur_pilot->solid->dir,
+                      (n==-1) ? VANGLE(cur_pilot->solid->pos) :
+                                vect_angle(&cur_pilot->solid->pos, v));
 
   pilot_turn = mod*diff;