qzdoom-gpl/src/g_shared/a_keys.cpp

483 lines
10 KiB
C++
Raw Normal View History

#include "a_keys.h"
#include "tarray.h"
#include "gi.h"
#include "gstrings.h"
#include "d_player.h"
#include "c_console.h"
#include "s_sound.h"
#include "sc_man.h"
#include "v_palette.h"
#include "w_wad.h"
struct OneKey
{
const TypeInfo * key;
int count;
bool check(AActor * owner)
{
return !!owner->FindInventory(key);
}
};
struct Keygroup
{
TArray<OneKey> anykeylist;
bool check(AActor * owner)
{
for(size_t i=0;i<anykeylist.Size();i++)
{
if (anykeylist[i].check(owner)) return true;
}
return false;
}
};
struct Lock
{
TArray<Keygroup *> keylist;
char * message;
char * remotemsg;
int locksound;
int rgb;
Lock()
{
message=remotemsg=NULL;
rgb=0;
}
~Lock()
{
for(size_t i=0;i<keylist.Size();i++) delete keylist[i];
keylist.Clear();
if (message) delete [] message;
if (remotemsg) delete [] remotemsg;
}
bool check(AActor * owner)
{
// An empty key list means that any key will do
if (!keylist.Size())
{
for (AInventory * item = owner->Inventory; item != NULL; item = item->Inventory)
{
if (item->IsKindOf (RUNTIME_CLASS(AKey)))
{
return true;
}
}
}
else for(size_t i=0;i<keylist.Size();i++)
{
if (!keylist[i]->check(owner)) return false;
}
return true;
}
};
static Lock * locks[256]; // all valid locks
static bool keysdone=false; // have the locks been initialized?
static int currentnumber; // number to be assigned to next key
static bool ignorekey; // set to true when the current lock is not being used
static const char * keywords_lock[]={
"ANY",
"MESSAGE",
"REMOTEMESSAGE",
"MAPCOLOR",
"LOCKEDSOUND",
NULL
};
//===========================================================================
//
//
//===========================================================================
static void AddOneKey(Keygroup * keygroup, const TypeInfo * mi)
{
if (mi)
{
// Any inventory item can be used to unlock a door
if (mi->IsDescendantOf(RUNTIME_CLASS(AInventory)))
{
OneKey k = {mi,1};
keygroup->anykeylist.Push (k);
//... but only keys get key numbers!
if (mi->IsDescendantOf(RUNTIME_CLASS(AKey)))
{
if (!ignorekey &&
static_cast<AKey*>(GetDefaultByType(mi))->KeyNumber == 0)
{
static_cast<AKey*>(GetDefaultByType(mi))->KeyNumber=++currentnumber;
}
}
}
else
{
SC_ScriptError("'%s' is not an inventory item", sc_String);
}
}
else
{
SC_ScriptError("Unknown item '%s'", sc_String);
}
}
//===========================================================================
//
//
//===========================================================================
static Keygroup * ParseKeygroup()
{
Keygroup * keygroup;
const TypeInfo * mi;
SC_MustGetStringName("{");
keygroup=new Keygroup;
while (!SC_CheckString("}"))
{
SC_MustGetString();
mi=TypeInfo::FindType(sc_String);
AddOneKey(keygroup, mi);
}
if (keygroup->anykeylist.Size()==0)
{
delete keygroup;
return NULL;
}
keygroup->anykeylist.ShrinkToFit();
return keygroup;
}
//===========================================================================
//
//
//===========================================================================
static void PrintMessage (const char *str)
{
if (str != NULL)
{
string temp;
if (strchr (str, '$'))
{
// The message or part of it is from the LANGUAGE lump
string name;
size_t part1 = strcspn (str, "$");
temp = string(str, part1);
size_t part2 = strcspn (str + part1 + 1, "$");
name = string(str + part1 + 1, part2);
temp += GStrings(name.GetChars());
if (str[part1 + 1 + part2] == '$')
{
temp += str + part1 + part2 + 2;
}
str = temp.GetChars();
}
C_MidPrint (str);
}
}
//===========================================================================
//
//
//===========================================================================
static void ParseLock()
{
int i,r,g,b;
int keynum;
Lock sink;
Lock * lock=&sink;
Keygroup * keygroup;
const TypeInfo * mi;
SC_MustGetNumber();
keynum=sc_Number;
SC_MustGetString();
if (SC_Compare("DOOM"))
{
if (gameinfo.gametype != GAME_Doom) keynum=-1;
}
else if (SC_Compare("HERETIC"))
{
if (gameinfo.gametype != GAME_Heretic) keynum=-1;
}
else if (SC_Compare("HEXEN"))
{
if (gameinfo.gametype != GAME_Hexen) keynum=-1;
}
else if (SC_Compare("STRIFE"))
{
if (gameinfo.gametype != GAME_Strife) keynum=-1;
}
else SC_UnGet();
ignorekey=true;
if (keynum>0 && keynum<255)
{
lock=new Lock;
if (locks[keynum]) delete locks[keynum];
locks[keynum]=lock;
locks[keynum]->locksound = S_FindSound("misc/keytry");
ignorekey=false;
}
else if (keynum!=-1)
{
SC_ScriptError("Lock index %d out of range", keynum);
}
SC_MustGetStringName("{");
while (!SC_CheckString("}"))
{
SC_MustGetString();
switch(i=SC_MatchString(keywords_lock))
{
case 0: // Any
keygroup=ParseKeygroup();
if (keygroup) lock->keylist.Push(keygroup);
break;
case 1: // message
SC_MustGetString();
lock->message=copystring(sc_String);
break;
case 2: // remotemsg
SC_MustGetString();
lock->remotemsg=copystring(sc_String);
break;
case 3: // mapcolor
SC_MustGetNumber();
r=sc_Number;
SC_MustGetNumber();
g=sc_Number;
SC_MustGetNumber();
b=sc_Number;
lock->rgb=MAKERGB(r,g,b);
break;
case 4: // locksound
SC_MustGetString();
lock->locksound = S_FindSound(sc_String);
break;
default:
mi=TypeInfo::FindType(sc_String);
if (mi)
{
keygroup=new Keygroup;
AddOneKey(keygroup, mi);
if (keygroup)
{
keygroup->anykeylist.ShrinkToFit();
lock->keylist.Push(keygroup);
}
}
break;
}
}
// copy the messages if the other one does not exist
if (!lock->remotemsg && lock->message) lock->remotemsg=strdup(lock->message);
if (!lock->message && lock->remotemsg) lock->message=strdup(lock->remotemsg);
lock->keylist.ShrinkToFit();
}
//===========================================================================
//
// Clears all key numbers so the parser can assign its own ones
// This ensures that only valid keys are considered by the key cheats
//
//===========================================================================
static void ClearLocks()
{
int i;
for(i=0;i<TypeInfo::m_NumTypes;i++)
{
if (TypeInfo::m_Types[i]->IsDescendantOf(RUNTIME_CLASS(AKey)))
{
static_cast<AKey*>(GetDefaultByType(TypeInfo::m_Types[i]))->KeyNumber=0;
}
}
for(i=0;i<256;i++)
{
if (locks[i]!=NULL)
{
delete locks[i];
locks[i]=NULL;
}
}
currentnumber=0;
keysdone=false;
}
//===========================================================================
//
//
//===========================================================================
void P_InitKeyMessages()
{
int lastlump, lump;
lastlump = 0;
ClearLocks();
while ((lump = Wads.FindLump ("LOCKDEFS", &lastlump)) != -1)
{
SC_OpenLumpNum (lump, "LOCKDEFS");
while (SC_GetString ())
{
if (SC_Compare("LOCK"))
{
ParseLock();
}
else if (SC_Compare("CLEARLOCKS"))
{
// clear all existing lock defintions and key numbers
ClearLocks();
}
else
SC_ScriptError("Unknown command %s in LockDef", sc_String);
}
SC_Close();
}
keysdone=true;
}
//===========================================================================
//
// P_CheckKeys
//
// Returns true if the actor has the required key. If not, a message is
// shown if the actor is also the consoleplayer's camarea, and false is
// returned.
//
//===========================================================================
bool P_CheckKeys (AActor *owner, int keynum, bool remote)
{
const char *failtext = NULL;
int failsound = 0;
failtext = NULL;
failsound = 0;
if (keynum<=0 || keynum>255) return true;
// Just a safety precaution. The messages should have been initialized upon game start.
if (!keysdone) P_InitKeyMessages();
if (!locks[keynum])
{
if (keynum==103 && gameinfo.gametype == GAME_Strife)
failtext = "THIS AREA IS ONLY AVAILABLE IN THE RETAIL VERSION OF STRIFE";
else
failtext = "That doesn't seem to work";
failsound = S_FindSound("misc/keytry");
}
else
{
if (locks[keynum]->check(owner)) return true;
failtext = remote? locks[keynum]->remotemsg : locks[keynum]->message;
failsound = locks[keynum]->locksound;
}
// If we get here, that means the actor isn't holding an appropriate key.
if (owner == players[consoleplayer].camera)
{
PrintMessage(failtext);
S_SoundID (owner, CHAN_VOICE, failsound, 1, ATTN_NORM);
}
return false;
}
//==========================================================================
//
// AKey implementation
//
//==========================================================================
IMPLEMENT_STATELESS_ACTOR (AKey, Any, -1, 0)
PROP_Inventory_FlagsSet (IF_INTERHUBSTRIP)
PROP_Inventory_PickupSound ("misc/k_pkup")
END_DEFAULTS
bool AKey::HandlePickup (AInventory *item)
{
// In single player, you can pick up an infinite number of keys
// even though you can only hold one of each.
if (multiplayer)
{
return Super::HandlePickup (item);
}
if (GetClass() == item->GetClass())
{
item->ItemFlags |= IF_PICKUPGOOD;
return true;
}
if (Inventory != NULL)
{
return Inventory->HandlePickup (item);
}
return false;
}
bool AKey::ShouldStay ()
{
return !!multiplayer;
}
//==========================================================================
//
// These functions can be used to get color information for
// automap display of keys and locked doors
//
//==========================================================================
int P_GetMapColorForLock (int lock)
{
if (lock > 0 && lock < 256)
{
if (locks[lock]) return locks[lock]->rgb;
}
return 0;
}
//==========================================================================
//
//
//
//==========================================================================
int P_GetMapColorForKey (AInventory * key)
{
int i;
for (i = 0; i < 256; i++)
{
if (locks[i] && locks[i]->check(key)) return locks[i]->rgb;
}
return 0;
}