/*
**
**
**---------------------------------------------------------------------------
** Copyright 1999 Martin Colberg
** Copyright 1999-2016 Randy Heit
** Copyright 2005-2016 Christoph Oelckers
** All rights reserved.
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions
** are met:
**
** 1. Redistributions of source code must retain the above copyright
**    notice, this list of conditions and the following disclaimer.
** 2. Redistributions in binary form must reproduce the above copyright
**    notice, this list of conditions and the following disclaimer in the
**    documentation and/or other materials provided with the distribution.
** 3. The name of the author may not be used to endorse or promote products
**    derived from this software without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**---------------------------------------------------------------------------
**
*/
// Cajun bot
//
// [RH] Moved console commands out of d_netcmd.c (in Cajun source), because
// they don't really belong there.

#include "c_cvars.h"
#include "c_dispatch.h"
#include "b_bot.h"
#include "m_argv.h"
#include "doomstat.h"
#include "p_local.h"
#include "cmdlib.h"
#include "teaminfo.h"
#include "d_net.h"
#include "serializer.h"
#include "d_player.h"
#include "w_wad.h"
#include "vm.h"
#include "g_levellocals.h"

IMPLEMENT_CLASS(DBot, false, true)

IMPLEMENT_POINTERS_START(DBot)
	IMPLEMENT_POINTER(dest)
	IMPLEMENT_POINTER(prev)
	IMPLEMENT_POINTER(enemy)
	IMPLEMENT_POINTER(missile)
	IMPLEMENT_POINTER(mate)
	IMPLEMENT_POINTER(last_mate)
IMPLEMENT_POINTERS_END

DEFINE_FIELD(DBot, dest)

DBot::DBot ()
: DThinker(STAT_BOT)
{
	Clear ();
}

void DBot::Clear ()
{
	player = nullptr;
	Angle = 0.;
	dest = nullptr;
	prev = nullptr;
	enemy = nullptr;
	missile = nullptr;
	mate = nullptr;
	last_mate = nullptr;
	memset(&skill, 0, sizeof(skill));
	t_active = 0;
	t_respawn = 0;
	t_strafe = 0;
	t_react = 0;
	t_fight = 0;
	t_roam = 0;
	t_rocket = 0;
	first_shot = true;
	sleft = false;
	allround = false;
	increase = false;
	old = { 0, 0 };
}

FSerializer &Serialize(FSerializer &arc, const char *key, botskill_t &skill, botskill_t *def)
{
	if (arc.BeginObject(key))
	{
		arc("aiming", skill.aiming)
			("perfection", skill.perfection)
			("reaction", skill.reaction)
			("isp", skill.isp)
			.EndObject();
	}
	return arc;
}

void DBot::Serialize(FSerializer &arc)
{
	Super::Serialize (arc);

	arc("player", player)
		("angle", Angle)
		("dest", dest)
		("prev", prev)
		("enemy", enemy)
		("missile", missile)
		("mate", mate)
		("lastmate", last_mate)
		("skill", skill)
		("active", t_active)
		("respawn", t_respawn)
		("strafe", t_strafe)
		("react", t_react)
		("fight", t_fight)
		("roam", t_roam)
		("rocket", t_rocket)
		("firstshot", first_shot)
		("sleft", sleft)
		("allround", allround)
		("increase", increase)
		("old", old);
}

void DBot::Tick ()
{
	Super::Tick ();

	if (player->mo == nullptr || level.isFrozen())
	{
		return;
	}

	BotThinkCycles.Clock();
	bglobal.m_Thinking = true;
	Think ();
	bglobal.m_Thinking = false;
	BotThinkCycles.Unclock();
}

CVAR (Int, bot_next_color, 11, 0)
CVAR (Bool, bot_observer, false, 0)

CCMD (addbot)
{
	if (gamestate != GS_LEVEL && gamestate != GS_INTERMISSION)
	{
		Printf ("Bots cannot be added when not in a game!\n");
		return;
	}

	if (!players[consoleplayer].settings_controller)
	{
		Printf ("Only setting controllers can add bots\n");
		return;
	}

	if (argv.argc() > 2)
	{
		Printf ("addbot [botname] : add a bot to the game\n");
		return;
	}

	if (argv.argc() > 1)
		bglobal.SpawnBot (argv[1]);
	else
		bglobal.SpawnBot (nullptr);
}

void FCajunMaster::ClearPlayer (int i, bool keepTeam)
{
	if (players[i].mo)
	{
		players[i].mo->Destroy ();
		players[i].mo = nullptr;
	}
	botinfo_t *bot = botinfo;
	while (bot && stricmp (players[i].userinfo.GetName(), bot->name))
		bot = bot->next;
	if (bot)
	{
		bot->inuse = BOTINUSE_No;
		bot->lastteam = keepTeam ? players[i].userinfo.GetTeam() : TEAM_NONE;
	}
	if (players[i].Bot != nullptr)
	{
		players[i].Bot->Destroy ();
		players[i].Bot = nullptr;
	}
	players[i].~player_t();
	::new(&players[i]) player_t;
	players[i].userinfo.Reset();
	playeringame[i] = false;
}

CCMD (removebots)
{
	if (!players[consoleplayer].settings_controller)
	{
		Printf ("Only setting controllers can remove bots\n");
		return;
	}

	Net_WriteByte (DEM_KILLBOTS);
}

CCMD (freeze)
{
	if (CheckCheatmode ())
		return;

	if (netgame && !players[consoleplayer].settings_controller)
	{
		Printf ("Only setting controllers can use freeze mode\n");
		return;
	}

	Net_WriteByte (DEM_GENERICCHEAT);
	Net_WriteByte (CHT_FREEZE);
}

CCMD (listbots)
{
	botinfo_t *thebot = bglobal.botinfo;
	int count = 0;

	while (thebot)
	{
		Printf ("%s%s\n", thebot->name, thebot->inuse == BOTINUSE_Yes ? " (active)" : "");
		thebot = thebot->next;
		count++;
	}
	Printf ("> %d bots\n", count);
}

// set the bot specific weapon information
// This is intentionally not in the weapon definition anymore.

BotInfoMap BotInfo;

void InitBotStuff()
{
	int lump;
	int lastlump = 0;
	while (-1 != (lump = Wads.FindLump("BOTSUPP", &lastlump)))
	{
		FScanner sc(lump);
		sc.SetCMode(true);
		while (sc.GetString())
		{
			PClassActor *wcls = PClass::FindActor(sc.String);
			if (wcls != nullptr && wcls->IsDescendantOf(NAME_Weapon))
			{
				BotInfoData bi = {};
				sc.MustGetStringName(",");
				sc.MustGetNumber();
				bi.MoveCombatDist = sc.Number;
				while (sc.CheckString(","))
				{
					sc.MustGetString();
					if (sc.Compare("BOT_REACTION_SKILL_THING"))
					{
						bi.flags |= BIF_BOT_REACTION_SKILL_THING;
					}
					else if (sc.Compare("BOT_EXPLOSIVE"))
					{
						bi.flags |= BIF_BOT_EXPLOSIVE;
					}
					else if (sc.Compare("BOT_BFG"))
					{
						bi.flags |= BIF_BOT_BFG;
					}
					else
					{
						PClassActor *cls = PClass::FindActor(sc.String);
						bi.projectileType = cls;
						if (cls == nullptr)
						{
							sc.ScriptError("Unknown token %s", sc.String);
						}
					}
				}
				BotInfo[wcls->TypeName] = bi;
			}
			else
			{
				sc.ScriptError("%s is not a weapon type", sc.String);
			}
		}
	}

	// Fixme: Export these, too.
	static const char *warnbotmissiles[] = { "PlasmaBall", "Ripper", "HornRodFX1" };
	for(unsigned i=0;i<countof(warnbotmissiles);i++)
	{
		AActor *a = GetDefaultByName (warnbotmissiles[i]);
		if (a != nullptr)
		{
			a->flags3|=MF3_WARNBOT;
		}
	}
}