src/ship/ai.cpp

   1 // The code in here is just for bookeeping, allocating
   2 // ai slots and linking them to ships.
   3 // See AiCode.cpp for the actual AI code.
   4
   5 #include "pstypes.h"
   6 #include "object.h"
   7 #include "physics.h"
   8 #include "vecmat.h"
   9 #include "ship.h"
  10 #include "model.h"
  11 #include "2d.h"
  12 #include "3d.h"
  13 #include "ai.h"
  14 #include "floating.h"
  15 #include "ailocal.h"
  16
  17 int Total_goal_ship_names = 0;
  18 char Goal_ship_names[MAX_GOAL_SHIP_NAMES][NAME_LENGTH];
  19 ai_info Ai_info[MAX_AI_INFO];
  20 ai_info *Player_ai;
  21
  22 // Return index of free AI slot.
  23 // Return -1 if no free slot.
  24 int ai_get_slot(int shipnum)
  25 {
  26         int     i;
  27
  28         for (i=0; i<MAX_AI_INFO ; i++)
  29                 if (Ai_info[i].shipnum == -1)   {
  30                         Ai_info[i].shipnum = shipnum;
  31                         return i;
  32                 }
  33
  34         Warning( LOCATION, "Couldn't get AI slot" );
  35         Int3();
  36
  37         return -1;
  38 }
  39
  40 // Releases an AI slot to be used by someone else.
  41 // Only modifies in Ai_info struct.  Does not modify hook in ship.
  42 void ai_free_slot(int ai_index)
  43 {
  44         Assert( (ai_index >= 0) && (ai_index < MAX_AI_INFO) );
  45
  46         Ai_info[ai_index].shipnum = -1;
  47 }
  48
  49 int get_wingnum(int objnum)
  50 {
  51         int     shipnum, ai_index;
  52
  53         shipnum = Objects[objnum].instance;
  54
  55         ai_index = Ships[shipnum].ai_index;
  56
  57         return Ai_info[ai_index].wing;
  58 }
  59
  60 void set_wingnum(int objnum, int wingnum)
  61 {
  62         int     shipnum, ai_index;
  63
  64         Assert(Objects[objnum].type == OBJ_SHIP);
  65
  66         shipnum = Objects[objnum].instance;
  67
  68         Assert((shipnum >= 0) && (shipnum < MAX_SHIPS));
  69
  70         ai_index = Ships[shipnum].ai_index;
  71
  72         Assert( (ai_index >= 0) && (ai_index < MAX_AI_INFO) );
  73
  74         Ai_info[ai_index].wing = wingnum;
  75 }
  76
  77 char *ai_get_goal_ship_name(char *name, int *index)
  78 {
  79         int i;
  80
  81         for (i=0; i < Total_goal_ship_names; i++)
  82                 if (!stricmp(name, Goal_ship_names[i])) {
  83                         *index = i;
  84                         return Goal_ship_names[i];
  85                 }
  86
  87         Assert(Total_goal_ship_names < MAX_GOAL_SHIP_NAMES);
  88         Assert(strlen(name) < NAME_LENGTH - 1);
  89         i = Total_goal_ship_names++;
  90         strcpy(Goal_ship_names[i], name);
  91         *index = i;
  92         return Goal_ship_names[i];
  93 }