mirror of
https://github.com/DrBeef/Raze.git
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171 lines
4.4 KiB
C++
171 lines
4.4 KiB
C++
/*
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** cheathandler.cpp
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** Generic Cheat code.
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**
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**---------------------------------------------------------------------------
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// Copyright 1999-2016 Randy Heit
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// Copyright 2002-2020 Christoph Oelckers
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** All rights reserved.
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**
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** Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions
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** are met:
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**
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** 1. Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** 2. Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in the
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** documentation and/or other materials provided with the distribution.
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** 3. The name of the author may not be used to endorse or promote products
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** derived from this software without specific prior written permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OFf
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** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**---------------------------------------------------------------------------
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**
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*/
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#include "c_cvars.h"
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#include "c_dispatch.h"
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#include "d_event.h"
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#include "cheathandler.h"
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#include "printf.h"
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#include "gamestruct.h"
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#include "utf8.h"
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#include "d_protocol.h"
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#include "d_net.h"
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static cheatseq_t *cheatlist;
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static int numcheats;
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void SetCheats(cheatseq_t *cht, int count)
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{
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cheatlist = cht;
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numcheats = count;
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}
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CVAR(Bool, nocheats, false, CVAR_ARCHIVE)
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//--------------------------------------------------------------------------
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//
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// FUNC CheatAddkey
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//
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// Returns true if the added key completed the cheat, false otherwise.
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//
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//--------------------------------------------------------------------------
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static bool CheatAddKey (cheatseq_t *cheat, uint8_t key, bool *eat)
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{
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if (cheat->Pos == NULL)
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{
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cheat->Pos = cheat->Sequence;
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cheat->CurrentArg = 0;
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}
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if (*cheat->Pos == '#' && ((key >= '0' && key <= '9') || key == ' '))
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{
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*eat = true;
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cheat->Args[cheat->CurrentArg++] = key == ' ' ? '0' : key;
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cheat->Pos++;
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}
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else if (upperforlower[key] == upperforlower[*cheat->Pos])
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{
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cheat->Pos++;
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}
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else
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{
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cheat->Pos = cheat->Sequence;
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cheat->CurrentArg = 0;
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}
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if (*cheat->Pos == 0)
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{
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cheat->Pos = cheat->Sequence;
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cheat->CurrentArg = 0;
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return true;
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}
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return false;
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}
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//--------------------------------------------------------------------------
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//
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// Respond to keyboard input events, intercept cheats.
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// [RH] Cheats eat the last keypress used to trigger them
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//
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//--------------------------------------------------------------------------
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bool Cheat_Responder (event_t *ev)
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{
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bool eat = false;
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if (nocheats)
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{
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return false;
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}
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if (ev->type == EV_KeyDown)
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{
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int i;
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auto cheats = cheatlist;
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for (i = 0; i < numcheats; i++, cheats++)
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{
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if (CheatAddKey (cheats, (uint8_t)ev->data2, &eat))
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{
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if (cheats->DontCheck || !CheckCheatmode ())
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{
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if (cheats->Handler)
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eat |= cheats->Handler (cheats);
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else if (cheats->ccmd)
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{
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eat = true;
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C_DoCommand(cheats->ccmd);
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}
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}
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}
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else if (cheats->Pos - cheats->Sequence > 2)
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{ // If more than two characters into the sequence,
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// eat the keypress.
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eat = true;
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}
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}
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}
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return eat;
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}
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bool SendGenericCheat(cheatseq_t* cheat)
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{
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Net_WriteByte(DEM_GENERICCHEAT);
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Net_WriteByte(cheat->Param);
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return true;
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}
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void PlaybackCheat(const char *p)
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{
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if (!CheckCheatmode(true))
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{
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event_t ev = { EV_KeyDown, 0, 0, -1 };
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Cheat_Responder(&ev); // Reset the parser by passing a non-existent key.
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for (; *p; p++)
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{
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// just play the cheat command through the event parser
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ev.data2 = *p;
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Cheat_Responder(&ev);
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}
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ev.data2 = -1;
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Cheat_Responder(&ev);
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}
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}
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CCMD(activatecheat)
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{
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if (argv.argc() < 2)
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Printf("activatecheat <string>: activates a classic cheat code\n");
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else
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PlaybackCheat(argv[1]);
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}
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