/*	Formatright © 2009, ConnorMcLeod
 
	Migraine 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.
 
	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 Migraine; if not, write to the
	Free Software Foundation, Inc., 59 Temple Place - Suite 330,
	Boston, MA 02111-1307, USA.
*/
 
#include amxmodx
#include amxmisc
#include cstrike
#include fakemeta
#include hamsandwich
 
#define VERSION "0.0.5"
 
#define MAX_PLAYERS 32
 
#define SetUserReversed(%1)		g_bMigraineux |= 1<<(%1 & 31)
#define ClearUserReversed(%1)		g_bMigraineux &= ~( 1<<(%1 & 31) )
#define HasUserMigraine(%1)		g_bMigraineux &  1<<(%1 & 31)
 
enum _:GlobalState {None, Terrorists, Cts, All}
 
new g_bMigraineux
 
new Float:g_vecPunchAngles[MAX_PLAYERS+1][3]
new g_iFfPlayerPreThink
new g_iGlobalState
 
public plugin_init()
{
	register_plugin("Migraine", VERSION, "ConnorMcLeod")
 
	RegisterHam(Ham_Spawn, "player", "Player_Spawn_Post", 1)
 
	register_concmd("amx_migraine", "AdminCommand_Migraine", ADMIN_LEVEL_A, "- < name/@CT/@TE/@ALL > < 0/1 >")
}
 
public client_putinserver( id )
{
	ClearUserReversed(id)
	CheckForward()
}
 
public client_disconnect( id )
{
	ClearUserReversed(id)
	CheckForward()
}
 
public Player_Spawn_Post( id )
{
	if( is_user_alive(id) )
	{
		switch( g_iGlobalState )
		{
			case Terrorists, Cts:
			{
				if( g_iGlobalState == _:cs_get_user_team(id) )
				{
					SetUserReversed(id)
				}
				else
				{
					ClearUserReversed(id)
					CheckForward()
				}
			}
			case All:
			{
				SetUserReversed(id)
				CheckForward()
			}
		}
	}
}
 
public AdminCommand_Migraine(id, level, cid)
{
	if( cmd_access(id, level, cid, 3) )
	{
		new szTarget[32], szOnOff[2], iPlayer, iOnOff
		read_argv(1, szTarget, charsmax(szTarget))
		read_argv(2, szOnOff, charsmax(szOnOff))
 
		switch( szOnOff[0] )
		{
			case '0':
			{
				iOnOff = 0
			}
			case '1':
			{
				iOnOff = 1
			}
			default:
			{
				return PLUGIN_HANDLED
			}
		}
 
		if( szTarget[0] == '@' )
		{
			if( !iOnOff )
			{
				g_bMigraineux = 0
				g_iGlobalState = None
				CheckForward()
				for(new i; i<sizeof(g_vecPunchAngles); i++)
				{
					g_vecPunchAngles[iPlayer][0] = 0.0
					g_vecPunchAngles[iPlayer][1] = 0.0
				}
				return PLUGIN_HANDLED
			}
 
			new iPlayers[MAX_PLAYERS], iNum
			get_players(iPlayers, iNum)
			for(new i; i<iNum; i++)
			{
				iPlayer = iPlayers[i]
				switch( szTarget[1] )
				{
					case 'a','A':
					{
						g_iGlobalState = All
						SetUserReversed(iPlayer)		
					}
					case 't', 'T':
					{
						g_iGlobalState = Terrorists
 
						if( cs_get_user_team(iPlayer) == CS_TEAM_T )
						{
							SetUserReversed(iPlayer)
						}
						else
						{
							ClearUserReversed(iPlayer)
						}
					}
					case 'c', 'C':
					{
						g_iGlobalState = Cts
 
						if( cs_get_user_team(iPlayer) == CS_TEAM_CT )
						{
							SetUserReversed(iPlayer)
						}
						else
						{
							ClearUserReversed(iPlayer)
						}
					}
					default:
					{
						return PLUGIN_HANDLED
					}
				}
				g_vecPunchAngles[iPlayer][0] = 0.0
				g_vecPunchAngles[iPlayer][1] = 0.0
			}
		}
		else
		{
			iPlayer = cmd_target(id, szTarget, CMDTARGET_OBEY_IMMUNITY|CMDTARGET_ALLOW_SELF)
			if( iPlayer )
			{
				if( iOnOff )
				{
					SetUserReversed(iPlayer)
				}
				else
				{
					ClearUserReversed(iPlayer)
				}
				g_vecPunchAngles[iPlayer][0] = 0.0
				g_vecPunchAngles[iPlayer][1] = 0.0
			}
		}
		CheckForward()
	}
	return PLUGIN_HANDLED
}
 
public PlayerPreThink( id )
{
	if(HasUserMigraine(id) && is_user_alive(id))
	{
		if( g_vecPunchAngles[id][1] < 180.0 )
		{
			g_vecPunchAngles[id][1] += 2.0
			g_vecPunchAngles[id][0] = g_vecPunchAngles[id][1] * 2.0
		}
		else
		{
			g_vecPunchAngles[id][0] = 0.0
		}
 
		static Float:vecPunchAngle[3]
		vecPunchAngle[0] = g_vecPunchAngles[id][0]
		vecPunchAngle[1] = g_vecPunchAngles[id][0]
		vecPunchAngle[2] = g_vecPunchAngles[id][1]
 
		set_pev(id, pev_punchangle, vecPunchAngle)
	}
}
 
CheckForward()
{
	if( !g_bMigraineux != !g_iFfPlayerPreThink )
	{
		if( g_bMigraineux )
		{
			g_iFfPlayerPreThink = register_forward(FM_PlayerPreThink, "PlayerPreThink")
		}
		else
		{
			unregister_forward(FM_PlayerPreThink, g_iFfPlayerPreThink)
			g_iFfPlayerPreThink = 0
		}
	}
}