/*
	Weapon RG6 Buldog Grenade Launcher by NiHiLaNTh.
	Two fire modes swithable by right mouse button - instant explosion and bouncing!
	
	Credits: KORD_12.7, Shapirlic, Arkshine, GordonFreeman(RU)
	
	Only for HL and only under WeaponMod module!!!
	
	Have Fun!
*/

/* AMX Mod X
*	6G30 aka RG6.
*
* http://aghl.ru/forum/ - Russian Half-Life and Adrenaline Gamer Community
*
* This file is provided as is (no warranties)
*/

#pragma semicolon 1
#pragma ctrlchar '\'

#include <amxmodx>
#include <hamsandwich>
#include <hl_wpnmod>
#include <xs>


// Plugin settings
#define PLUGIN				"6G30 aka RG-6"
#define VERSION 			"1.3a_aghlru"
#define AUTHOR 				"NiHiLaNTh" // Modification for aghl.ru by KORD_12.7


// Weapon settings
#define WEAPON_NAME 			"weapon_6g30"
#define WEAPON_SLOT			2
#define WEAPON_POSITION			3
#define WEAPON_PRIMARY_AMMO		"ARgrenades"
#define WEAPON_PRIMARY_AMMO_MAX		10
#define WEAPON_SECONDARY_AMMO		"" // NULL
#define WEAPON_SECONDARY_AMMO_MAX	-1
#define WEAPON_MAX_CLIP			6
#define WEAPON_DEFAULT_AMMO		6
#define WEAPON_FLAGS			0
#define WEAPON_WEIGHT			20
#define WEAPON_DAMAGE			100.0

// Hud
#define WEAPON_HUD_TXT			"sprites/weapon_6g30.txt"
#define WEAPON_HUD_SPR			"sprites/weapon_6g30.spr"
#define WEAPON_CROSSHAIR		"sprites/rgcross.spr"

// Models
#define MODEL_WORLD			"models/w_rg6.mdl"
#define MODEL_VIEW			"models/v_rg6.mdl"
#define MODEL_PLAYER			"models/p_rg6.mdl"

// Sounds
#define SOUND_FIRE			"weapons/rg6/fire1.wav"
#define SOUND_RELOAD_0			"weapons/rg6/start.wav"
#define SOUND_RELOAD_1			"weapons/rg6/reload.wav"
#define SOUND_RELOAD_2			"weapons/rg6/next.wav"
#define SOUND_RELOAD_3			"weapons/rg6/end.wav"

// Grenade velocity
#define GRENADE_VELOCITY		1500
#define GRENADE_CLASSNAME		"rg6grenade"

// Animation
#define ANIM_EXTENSION			"gauss"

// Animation Sequence
enum _:eRG6
{
	RG6_IDLE = 0,
	RG6_HOLSTER,
	RG6_DRAW,
	RG6_SHOOT,
	RG6_RELOAD1,
	RG6_RELOAD2,
	RG6_RELOAD3
};

#define SET_SIZE(%0,%1,%2) engfunc(EngFunc_SetSize,%0,%1,%2)

new g_iszGrenadeClassName;

//**********************************************
//* Precache resources                         *
//**********************************************

public plugin_precache()
{
	PRECACHE_MODEL(MODEL_VIEW);
	PRECACHE_MODEL(MODEL_WORLD);
	PRECACHE_MODEL(MODEL_PLAYER);
	
	PRECACHE_SOUND(SOUND_FIRE);
	PRECACHE_SOUND(SOUND_RELOAD_0);
	PRECACHE_SOUND(SOUND_RELOAD_1);
	PRECACHE_SOUND(SOUND_RELOAD_2);
	PRECACHE_SOUND(SOUND_RELOAD_3);
	
	PRECACHE_GENERIC(WEAPON_HUD_TXT);
	PRECACHE_GENERIC(WEAPON_HUD_SPR);
	PRECACHE_GENERIC(WEAPON_CROSSHAIR);
	
	g_iszGrenadeClassName = engfunc(EngFunc_AllocString, GRENADE_CLASSNAME);
}

//**********************************************
//* Register weapon.                           *
//**********************************************

public plugin_init()
{
	register_plugin(PLUGIN, VERSION, AUTHOR);
	
	new iRG6 = wpnmod_register_weapon
	(
		WEAPON_NAME,
		WEAPON_SLOT,
		WEAPON_POSITION,
		WEAPON_PRIMARY_AMMO,
		WEAPON_PRIMARY_AMMO_MAX,
		WEAPON_SECONDARY_AMMO,
		WEAPON_SECONDARY_AMMO_MAX,
		WEAPON_MAX_CLIP,
		WEAPON_FLAGS,
		WEAPON_WEIGHT
	);
	
	wpnmod_register_weapon_forward(iRG6, Fwd_Wpn_Spawn, 		"CRG6__Spawn" );
	wpnmod_register_weapon_forward(iRG6, Fwd_Wpn_Deploy, 		"CRG6__Deploy" );
	wpnmod_register_weapon_forward(iRG6, Fwd_Wpn_Idle, 		"CRG6__WeaponIdle" );
	wpnmod_register_weapon_forward(iRG6, Fwd_Wpn_PrimaryAttack,	"CRG6__PrimaryAttack" );
	wpnmod_register_weapon_forward(iRG6, Fwd_Wpn_SecondaryAttack,	"CRG6__SecondaryAttack" );
	wpnmod_register_weapon_forward(iRG6, Fwd_Wpn_Reload, 		"CRG6__Reload" );
	wpnmod_register_weapon_forward(iRG6, Fwd_Wpn_Holster, 		"CRG6__Holster" );
}

//**********************************************
//* Weapon spawn.                              *
//**********************************************

public CRG6__Spawn(const iItem)
{
	// Setting world model
	SET_MODEL(iItem, MODEL_WORLD);
	
	// Give a default ammo to weapon
	wpnmod_set_offset_int(iItem, Offset_iDefaultAmmo, WEAPON_DEFAULT_AMMO);
}

//**********************************************
//* Deploys the weapon.                        *
//**********************************************

public CRG6__Deploy(const iItem, const iPlayer, const iClip)
{
	return wpnmod_default_deploy(iItem, MODEL_VIEW, MODEL_PLAYER, RG6_DRAW, ANIM_EXTENSION);
}

//**********************************************
//* Called when the weapon is holster.         *
//**********************************************

public CRG6__Holster(const iItem)
{
	// Cancel any reload in progress.
	wpnmod_set_offset_int(iItem, Offset_iInSpecialReload, 0);
}

//**********************************************
//* The main attack of a weapon is triggered.  *
//**********************************************

public CRG6__PrimaryAttack(const iItem, const iPlayer, iClip)
{
	Grenade_Fire(iItem, iPlayer, false, iClip);
}

public CRG6__SecondaryAttack(const iItem, const iPlayer, iClip)
{
	Grenade_Fire(iItem, iPlayer, true, iClip);
}

//**********************************************
//* Displays the idle animation for the weapon.*
//**********************************************

public CRG6__WeaponIdle(const iItem, const iPlayer, const iClip, const iAmmo)
{
	wpnmod_reset_empty_sound( iItem );
	
	if( wpnmod_get_offset_float( iItem, Offset_flTimeWeaponIdle ) > 0.0 )
	{
		return;
	}
	
	new fInSpecialReload = wpnmod_get_offset_int( iItem, Offset_iInSpecialReload );
	
	if( !iClip && !fInSpecialReload && iAmmo )
	{
		CRG6__Reload( iItem, iPlayer, iClip, iAmmo );
	}
	else if( fInSpecialReload != 0 )
	{
		if( iClip != WEAPON_MAX_CLIP && iAmmo )
		{
			CRG6__Reload( iItem, iPlayer, iClip, iAmmo );
		}
		else
		{
			// reload debounce has timed out
			wpnmod_send_weapon_anim( iItem, RG6_RELOAD3 );
			
			wpnmod_set_offset_int( iItem, Offset_iInSpecialReload, 0 );
			wpnmod_set_offset_float( iItem, Offset_flTimeWeaponIdle, 1.5 );
		}
	}
}

//**********************************************
//* Called when the weapon is reloaded.        *
//**********************************************

public CRG6__Reload(const iItem, const iPlayer, const iClip, const iAmmo)
{
	if(iAmmo <= 0 || iClip == WEAPON_MAX_CLIP)
	{
		return;
	}
	
	// don't reload until recoil is done
	if (wpnmod_get_offset_float(iItem, Offset_flNextPrimaryAttack) > 0.0)
	{
		return;
	}
	
		
	switch (wpnmod_get_offset_int(iItem, Offset_iInSpecialReload))
	{
		case 0:
		{
			wpnmod_send_weapon_anim( iItem, RG6_RELOAD1 );
			wpnmod_set_offset_int( iItem, Offset_iInSpecialReload, 1 );
			wpnmod_set_offset_float( iItem, Offset_flTimeWeaponIdle, 0.5 );
			wpnmod_set_offset_float( iItem, Offset_flNextPrimaryAttack, 1.0 );
			wpnmod_set_offset_float( iItem, Offset_flNextSecondaryAttack, 1.0 );
		}
		case 1:
		{
			if( wpnmod_get_offset_float( iItem, Offset_flTimeWeaponIdle ) > 0.0 )
				return;
				
			// was waiting for gun to move to side
			wpnmod_set_offset_int( iItem, Offset_iInSpecialReload, 2 );
			
			emit_sound( iPlayer, CHAN_ITEM, SOUND_RELOAD_1, VOL_NORM, ATTN_NORM, 0, PITCH_NORM );
			wpnmod_send_weapon_anim( iItem, RG6_RELOAD2 );
			wpnmod_set_offset_float( iItem, Offset_flTimeWeaponIdle, 1.25 );
		}
		default:
		{
			wpnmod_set_offset_int( iItem, Offset_iClip, iClip + 1 );
			wpnmod_set_player_ammo( iPlayer, WEAPON_PRIMARY_AMMO, iAmmo - 1 );
			wpnmod_set_offset_int( iItem, Offset_iInSpecialReload, 1 );
		}
	}
}

//**********************************************
//* Launch a contact grenade.                  *
//**********************************************

Grenade_Fire(const iItem, const iPlayer, const iToss, iClip)
{
	if (pev(iPlayer, pev_waterlevel) == 3 || iClip <= 0)
	{
		wpnmod_play_empty_sound(iItem);
		wpnmod_set_offset_float(iItem, Offset_flNextPrimaryAttack, 0.15);
		wpnmod_set_offset_float(iItem, Offset_flNextSecondaryAttack, 0.15);
		return;
	}
	
	new Float: vecOrigin[3];
	new Float: vecVelocity[3];
	
	wpnmod_send_weapon_anim(iItem, RG6_SHOOT);
	wpnmod_set_player_anim(iPlayer, PLAYER_ATTACK1);
	
	wpnmod_set_offset_int(iItem, Offset_iClip, iClip -= 1);
	wpnmod_set_offset_int(iItem, Offset_iInSpecialReload, 0);
	
	wpnmod_set_offset_int(iPlayer, Offset_iWeaponVolume, NORMAL_GUN_VOLUME);
	wpnmod_set_offset_int(iPlayer, Offset_iWeaponFlash, BRIGHT_GUN_FLASH);
	
	wpnmod_set_offset_float(iItem, Offset_flNextPrimaryAttack, 0.35);
	wpnmod_set_offset_float(iItem, Offset_flNextSecondaryAttack, 0.35);
	wpnmod_set_offset_float(iItem, Offset_flTimeWeaponIdle, (iClip != 0) ? 5.0 : 0.75);
	
	set_pev(iPlayer, pev_punchangle, Float:{ -7.0, -0.0, 0.0 });
	set_pev(iPlayer, pev_effects, pev(iPlayer, pev_effects) | EF_MUZZLEFLASH);
	
	emit_sound(iPlayer, CHAN_WEAPON, SOUND_FIRE, 0.9, ATTN_NORM, 0, PITCH_NORM);
	
	velocity_by_aim(iPlayer, GRENADE_VELOCITY, vecVelocity);
	wpnmod_get_gun_position(iPlayer, vecOrigin, .flUpScale = -2.0);
	
	if (iToss)
	{
		state stTimedGrenade;
	}
	else
	{
		state stContactGrenade;
	}
	
	LaunchGrenade(iPlayer, vecOrigin, vecVelocity);
}

LaunchGrenade(const iPlayer, const Float: vecOrigin[3], const Float: vecVelocity[3]) <stContactGrenade>
{
	new iGrenade = wpnmod_fire_contact_grenade(iPlayer, vecOrigin, vecVelocity);
	
	if (pev_valid(iGrenade))
	{
		set_pev(iGrenade, pev_dmg, WEAPON_DAMAGE);
		set_pev_string(iGrenade, pev_classname, g_iszGrenadeClassName);
	}
}

LaunchGrenade(const iPlayer, const Float: vecOrigin[3], const Float: vecVelocity[3]) <stTimedGrenade>
{
	new iGrenade = wpnmod_fire_timed_grenade(iPlayer, vecOrigin, vecVelocity);
		
	if (pev_valid(iGrenade))
	{
		set_pev(iGrenade, pev_dmg, WEAPON_DAMAGE);
		set_pev(iGrenade, pev_avelocity, Float: {300.0, 300.0, 300.0});
		set_pev_string(iGrenade, pev_classname, g_iszGrenadeClassName);
			
		SET_MODEL(iGrenade, "models/grenade.mdl");
		SET_SIZE(iGrenade, Float: {-4.0, -4.0, -4.0}, Float: {4.0, 4.0, 4.0});
	}
}