g_game.c

制作游戏 魔法师传奇 源代码设计 MOFASHICHUANQI 经典老游戏

			return;
		}
	}

// no good spot, so the player will probably get stuck
	P_SpawnPlayer (&playerstarts[0][playernum]);
}

//==========================================================================
//
// G_DoReborn
//
//==========================================================================

void G_DoReborn(int playernum)
{
	int i;
	boolean oldWeaponowned[NUMWEAPONS];
	int oldKeys;
	int oldPieces;
	boolean foundSpot;
	int bestWeapon;

	if(G_CheckDemoStatus())
	{
		return;
	}
	if(!netgame)
	{
		if(SV_RebornSlotAvailable())
		{ // Use the reborn code if the slot is available
			gameaction = ga_singlereborn;
		}
		else
		{ // Start a new game if there's no reborn info
			gameaction = ga_newgame;
		}
	}
	else
	{ // Net-game
		players[playernum].mo->player = NULL; // Dissassociate the corpse

		if(deathmatch)
		{ // Spawn at random spot if in death match
			G_DeathMatchSpawnPlayer(playernum);
			return;
		}

		// Cooperative net-play, retain keys and weapons
		oldKeys = players[playernum].keys;
		oldPieces = players[playernum].pieces;
		for(i = 0; i < NUMWEAPONS; i++)
		{
			oldWeaponowned[i] = players[playernum].weaponowned[i];
		}

		foundSpot = false;
		if(G_CheckSpot(playernum,
			&playerstarts[RebornPosition][playernum]))
		{ // Appropriate player start spot is open
			P_SpawnPlayer(&playerstarts[RebornPosition][playernum]);
			foundSpot = true;
		}
		else
		{
			// Try to spawn at one of the other player start spots
			for(i = 0; i < MAXPLAYERS; i++)
			{
				if(G_CheckSpot(playernum, &playerstarts[RebornPosition][i]))
				{ // Found an open start spot

					// Fake as other player
					playerstarts[RebornPosition][i].type = playernum+1;
					P_SpawnPlayer(&playerstarts[RebornPosition][i]);

					// Restore proper player type
					playerstarts[RebornPosition][i].type = i+1;
	
					foundSpot = true;
					break;
				}
			}
		}

		if(foundSpot == false)
		{ // Player's going to be inside something
			P_SpawnPlayer(&playerstarts[RebornPosition][playernum]);
		}

		// Restore keys and weapons
		players[playernum].keys = oldKeys;
		players[playernum].pieces = oldPieces;
		for(bestWeapon = 0, i = 0; i < NUMWEAPONS; i++)
		{
			if(oldWeaponowned[i])
			{
				bestWeapon = i;
				players[playernum].weaponowned[i] = true;
			}
		}
		players[playernum].mana[MANA_1] = 25;
		players[playernum].mana[MANA_2] = 25;
		if(bestWeapon)
		{ // Bring up the best weapon
			players[playernum].pendingweapon = bestWeapon;
		}
	}
}

void G_ScreenShot (void)
{
	gameaction = ga_screenshot;
}

//==========================================================================
//
// G_StartNewInit
//
//==========================================================================

void G_StartNewInit(void)
{
	SV_InitBaseSlot();
	SV_ClearRebornSlot();
	P_ACSInitNewGame();
	// Default the player start spot group to 0
	RebornPosition = 0;
}

//==========================================================================
//
// G_StartNewGame
//
//==========================================================================

void G_StartNewGame(skill_t skill)
{
	int realMap;

	G_StartNewInit();
	realMap = P_TranslateMap(1);
	if(realMap == -1)
	{
		realMap = 1;
	}
	G_InitNew(TempSkill, 1, realMap);
}

//==========================================================================
//
// G_TeleportNewMap
//
// Only called by the warp cheat code.  Works just like normal map to map
// teleporting, but doesn't do any interlude stuff.
//
//==========================================================================

void G_TeleportNewMap(int map, int position)
{
	gameaction = ga_leavemap;
	LeaveMap = map;
	LeavePosition = position;
}

//==========================================================================
//
// G_DoTeleportNewMap
//
//==========================================================================

void G_DoTeleportNewMap(void)
{
	SV_MapTeleport(LeaveMap, LeavePosition);
	gamestate = GS_LEVEL;
	gameaction = ga_nothing;
	RebornPosition = LeavePosition;
}

/*
boolean secretexit;
void G_ExitLevel (void)
{
	secretexit = false;
	gameaction = ga_completed;
}
void G_SecretExitLevel (void)
{
	secretexit = true;
	gameaction = ga_completed;
}
*/

//==========================================================================
//
// G_Completed
//
// Starts intermission routine, which is used only during hub exits,
// and DeathMatch games.
//==========================================================================

void G_Completed(int map, int position)
{
	gameaction = ga_completed;
	LeaveMap = map;
	LeavePosition = position;
}

void G_DoCompleted(void)
{
	int i;

	gameaction = ga_nothing;
	if(G_CheckDemoStatus())
	{
		return;
	}
	for(i = 0; i < MAXPLAYERS; i++)
	{
		if(playeringame[i])
		{
			G_PlayerExitMap(i);
		}
	}
	if(LeaveMap == -1 && LeavePosition == -1)
	{
		gameaction = ga_victory;
		return;
	}
	else
	{		
		gamestate = GS_INTERMISSION;
		IN_Start();
	}

/*
	int i;
	static int afterSecret[3] = { 7, 5, 5 };

	gameaction = ga_nothing;
	if(G_CheckDemoStatus())
	{
		return;
	}
	for(i = 0; i < MAXPLAYERS; i++)
	{
		if(playeringame[i])
		{
			G_PlayerFinishLevel(i);
		}
	}
	prevmap = gamemap;
	if(secretexit == true)
	{
		gamemap = 9;
	}
	else if(gamemap == 9)
	{ // Finished secret level
		gamemap = afterSecret[gameepisode-1];
	}
	else if(gamemap == 8)
	{
		gameaction = ga_victory;
		return;
	}
	else
	{
		gamemap++;
	}
	gamestate = GS_INTERMISSION;
	IN_Start();
*/
}

//============================================================================
//
// G_WorldDone
//
//============================================================================

void G_WorldDone(void)
{
	gameaction = ga_worlddone;
}

//============================================================================
//
// G_DoWorldDone
//
//============================================================================

void G_DoWorldDone(void)
{
	gamestate = GS_LEVEL;
	G_DoLoadLevel();
	gameaction = ga_nothing;
	viewactive = true;
}

//==========================================================================
//
// G_DoSingleReborn
//
// Called by G_Ticker based on gameaction.  Loads a game from the reborn
// save slot.
//
//==========================================================================

void G_DoSingleReborn(void)
{
	gameaction = ga_nothing;
	SV_LoadGame(SV_GetRebornSlot());
	SB_SetClassData();
}

//==========================================================================
//
// G_LoadGame
//
// Can be called by the startup code or the menu task.
//
//==========================================================================

static int GameLoadSlot;

void G_LoadGame(int slot)
{
	GameLoadSlot = slot;
	gameaction = ga_loadgame;
}

//==========================================================================
//
// G_DoLoadGame
//
// Called by G_Ticker based on gameaction.
//
//==========================================================================

void G_DoLoadGame(void)
{
	gameaction = ga_nothing;
	SV_LoadGame(GameLoadSlot);
	if(!netgame)
	{ // Copy the base slot to the reborn slot
		SV_UpdateRebornSlot();
	}
	SB_SetClassData();
}

//==========================================================================
//
// G_SaveGame
//
// Called by the menu task.  <description> is a 24 byte text string.
//
//==========================================================================

void G_SaveGame(int slot, char *description)
{
	savegameslot = slot;
	strcpy(savedescription, description);
	sendsave = true;
}

//==========================================================================
//
// G_DoSaveGame
//
// Called by G_Ticker based on gameaction.
//
//==========================================================================

void G_DoSaveGame(void)
{
	SV_SaveGame(savegameslot, savedescription);
	gameaction = ga_nothing;
	savedescription[0] = 0;
	P_SetMessage(&players[consoleplayer], TXT_GAMESAVED, true);
}

//==========================================================================
//
// G_DeferredNewGame
//
//==========================================================================

void G_DeferredNewGame(skill_t skill)
{
	TempSkill = skill;
	gameaction = ga_newgame;
}

//==========================================================================
//
// G_DoNewGame
//
//==========================================================================

void G_DoNewGame(void)
{
	G_StartNewGame(TempSkill);
	gameaction = ga_nothing;
}

/*
====================
=
= G_InitNew
=
= Can be called by the startup code or the menu task
= consoleplayer, displayplayer, playeringame[] should be set
====================
*/

void G_DeferedInitNew(skill_t skill, int episode, int map)
{
	TempSkill = skill;
	TempEpisode = episode;
	TempMap = map;
	gameaction = ga_initnew;
}

void G_DoInitNew(void)
{
	SV_InitBaseSlot();
	G_InitNew(TempSkill, TempEpisode, TempMap);
	gameaction = ga_nothing;
}

void G_InitNew(skill_t skill, int episode, int map)
{
	int i;

	if(paused)
	{
		paused = false;
		S_ResumeSound();
	}
	if(skill < sk_baby)
	{
		skill = sk_baby;
	}
	if(skill > sk_nightmare)
	{
		skill = sk_nightmare;
	}
	if(map < 1)
	{
		map = 1;
	}
	if(map > 99)
	{
		map = 99;
	}
	M_ClearRandom();
	// Force players to be initialized upon first level load
	for(i = 0; i < MAXPLAYERS; i++)
	{
		players[i].playerstate = PST_REBORN;
		players[i].worldTimer = 0;
	}

	// Set up a bunch of globals
	usergame = true; // will be set false if a demo
	paused = false;
	demorecording = false;
	demoplayback = false;
	viewactive = true;
	gameepisode = episode;
	gamemap = map;
	gameskill = skill;
	BorderNeedRefresh = true;

	// Initialize the sky
	R_InitSky(map);

	// Give one null ticcmd_t
	//gametic = 0;
	//maketic = 1;
	//for (i=0 ; i<MAXPLAYERS ; i++)
	//	nettics[i] = 1; // one null event for this gametic
	//memset (localcmds,0,sizeof(localcmds));
	//memset (netcmds,0,sizeof(netcmds));

	G_DoLoadLevel();
}

/*
===============================================================================

							DEMO RECORDING

===============================================================================
*/

#define DEMOMARKER      0x80

void G_ReadDemoTiccmd (ticcmd_t *cmd)
{
	if (*demo_p == DEMOMARKER)
	{       // end of demo data stream
		G_CheckDemoStatus ();
		return;
	}
	cmd->forwardmove = ((signed char)*demo_p++);
	cmd->sidemove = ((signed char)*demo_p++);
	cmd->angleturn = ((unsigned char)*demo_p++)<<8;
	cmd->buttons = (unsigned char)*demo_p++;
	cmd->lookfly = (unsigned char)*demo_p++;
	cmd->arti = (unsigned char)*demo_p++;
}

void G_WriteDemoTiccmd (ticcmd_t *cmd)
{
	if (gamekeydown['q'])           // press q to end demo recording
		G_CheckDemoStatus ();
	*demo_p++ = cmd->forwardmove;
	*demo_p++ = cmd->sidemove;
	*demo_p++ = cmd->angleturn>>8;
	*demo_p++ = cmd->buttons;
	*demo_p++ = cmd->lookfly;
	*demo_p++ = cmd->arti;
	demo_p -= 6;
	G_ReadDemoTiccmd (cmd);         // make SURE it is exactly the same
}



/*
===================
=
= G_RecordDemo
=
===================
*/

void G_RecordDemo (skill_t skill, int numplayers, int episode, int map, char *name)
{
	int             i;
	
	G_InitNew (skill, episode, map);
	usergame = false;
	strcpy (demoname, name);
	strcat (demoname, ".lmp");
	demobuffer = demo_p = Z_Malloc (0x20000,PU_STATIC,NULL);
	*demo_p++ = skill;
	*demo_p++ = episode;
	*demo_p++ = map;
	
	for (i=0 ; i<MAXPLAYERS ; i++)
	{
		*demo_p++ = playeringame[i];
		*demo_p++ = PlayerClass[i];
	}		
	demorecording = true;
}


/*
===================
=
= G_PlayDemo
=
===================
*/

char    *defdemoname;

void G_DeferedPlayDemo (char *name)
{
	defdemoname = name;
	gameaction = ga_playdemo;
}

void G_DoPlayDemo (void)
{
	skill_t skill;
	int             i, episode, map;
	
	gameaction = ga_nothing;
	demobuffer = demo_p = W_CacheLumpName (defdemoname, PU_STATIC);
	skill = *demo_p++;
	episode = *demo_p++;
	map = *demo_p++;

	for (i=0 ; i<MAXPLAYERS ; i++)
	{
		playeringame[i] = *demo_p++;
		PlayerClass[i] = *demo_p++;
	}

	// Initialize world info, etc.
	G_StartNewInit();

	precache = false;               // don't spend a lot of time in loadlevel
	G_InitNew (skill, episode, map);
	precache = true;
	usergame = false;
	demoplayback = true;
}


/*
===================
=
= G_TimeDemo
=
===================
*/

void G_TimeDemo (char *name)
{
	skill_t skill;
	int             episode, map;
	
	demobuffer = demo_p = W_CacheLumpName (name, PU_STATIC);
	skill = *demo_p++;
	episode = *demo_p++;
	map = *demo_p++;
	G_InitNew (skill, episode, map);
	usergame = false;
	demoplayback = true;
	timingdemo = true;
	singletics = true;
}


/*
===================
=
= G_CheckDemoStatus
=
= Called after a death or level completion to allow demos to be cleaned up
= Returns true if a new demo loop action will take place
===================
*/

boolean G_CheckDemoStatus (void)
{
	int             endtime;
	
	if (timingdemo)
	{
		endtime = I_GetTime ();
		I_Error ("timed %i gametics in %i realtics",gametic
		, endtime-starttime);
	}
	
	if (demoplayback)
	{
		if (singledemo)
			I_Quit ();
			
		Z_ChangeTag (demobuffer, PU_CACHE);
		demoplayback = false;
		H2_AdvanceDemo();
		return true;
	}

	if (demorecording)
	{
		*demo_p++ = DEMOMARKER;
		M_WriteFile (demoname, demobuffer, demo_p - demobuffer);
		Z_Free (demobuffer);
		demorecording = false;
		I_Error ("Demo %s recorded",demoname);
	}

	return false;
}