raze-gles/source/core/cheathandler.cpp
2020-08-03 20:51:31 +02:00

149 lines
3.5 KiB
C++

//-----------------------------------------------------------------------------
//
// Copyright 1999-2016 Randy Heit
// Copyright 2002-2016 Christoph Oelckers
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see http://www.gnu.org/licenses/
//
//-----------------------------------------------------------------------------
//
// DESCRIPTION:
// Generic Cheat code.
//
//-----------------------------------------------------------------------------
#include "c_cvars.h"
#include "c_dispatch.h"
#include "d_event.h"
#include "cheathandler.h"
#include "printf.h"
#include "gamestruct.h"
#include "utf8.h"
static cheatseq_t *cheatlist;
static int numcheats;
void SetCheats(cheatseq_t *cht, int count)
{
cheatlist = cht;
numcheats = count;
}
CVAR(Bool, nocheats, false, CVAR_ARCHIVE)
//--------------------------------------------------------------------------
//
// FUNC CheatAddkey
//
// Returns true if the added key completed the cheat, false otherwise.
//
//--------------------------------------------------------------------------
static bool CheatAddKey (cheatseq_t *cheat, uint8_t key, bool *eat)
{
if (cheat->Pos == NULL)
{
cheat->Pos = cheat->Sequence;
cheat->CurrentArg = 0;
}
if (*cheat->Pos == '#' && key >= '0' && key <= '9')
{
*eat = true;
cheat->Args[cheat->CurrentArg++] = key;
cheat->Pos++;
}
else if (upperforlower[key] == upperforlower[*cheat->Pos])
{
cheat->Pos++;
}
else
{
cheat->Pos = cheat->Sequence;
cheat->CurrentArg = 0;
}
if (*cheat->Pos == 0)
{
cheat->Pos = cheat->Sequence;
cheat->CurrentArg = 0;
return true;
}
return false;
}
//--------------------------------------------------------------------------
//
// Respond to keyboard input events, intercept cheats.
// [RH] Cheats eat the last keypress used to trigger them
//
//--------------------------------------------------------------------------
bool Cheat_Responder (event_t *ev)
{
bool eat = false;
if (nocheats)
{
return false;
}
if (ev->type == EV_KeyDown)
{
int i;
auto cheats = cheatlist;
for (i = 0; i < numcheats; i++, cheats++)
{
if (CheatAddKey (cheats, (uint8_t)ev->data2, &eat))
{
if (cheats->DontCheck || CheckCheatmode ())
{
eat |= cheats->Handler (cheats);
}
}
else if (cheats->Pos - cheats->Sequence > 2)
{ // If more than two characters into the sequence,
// eat the keypress.
eat = true;
}
}
}
return eat;
}
void PlaybackCheat(const char *p)
{
if (!gi->CheatAllowed(false))
{
event_t ev = { EV_KeyDown, 0, 0, -1 };
Cheat_Responder(&ev); // Reset the parser by passing a non-existent key.
for (; *p; p++)
{
// just play the cheat command through the event parser
ev.data2 = *p;
Cheat_Responder(&ev);
}
ev.data2 = -1;
Cheat_Responder(&ev);
}
else
Printf("activatecheat: Cheats not allowed.\n");
}
CCMD(activatecheat)
{
if (argv.argc() != 1)
Printf("activatecheat <string>: activates a classic cheat code\n");
else
PlaybackCheat(argv[0]);
}