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game/shared/tf2/weapon_shieldgrenade.cpp

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//=============================================================================//
+#include "cbase.h"
+#include "basetfplayer_shared.h"
+#include "weapon_combat_usedwithshieldbase.h"
+#include "weapon_combat_basegrenade.h"
+#include "weapon_combatshield.h"
+#include "in_buttons.h"
+
+#if !defined( CLIENT_DLL )
+#include "tf_shieldgrenade.h"
+#else
+
+#define CWeaponShieldGrenade C_WeaponShieldGrenade
+
+#endif
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include "tier0/memdbgon.h"
+
+
+#define SHIELD_GRENADE_LIFETIME	10.0f		// 10 seconds
+
+//-----------------------------------------------------------------------------
+// The shield grenade weapon
+//-----------------------------------------------------------------------------
+
+class CWeaponShieldGrenade: public CWeaponCombatUsedWithShieldBase
+{
+	DECLARE_CLASS( CWeaponShieldGrenade, CWeaponCombatUsedWithShieldBase );
+public:
+	DECLARE_NETWORKCLASS();
+	DECLARE_PREDICTABLE();
+
+	CWeaponShieldGrenade();
+
+	void	Spawn( void );
+	void	ItemPostFrame( void );
+	void	PrimaryAttack( void );
+	void	ThrowGrenade( void );
+
+	// All predicted weapons need to implement and return true
+	virtual bool			IsPredicted( void ) const
+	{ 
+		return true;
+	}
+
+#if defined( CLIENT_DLL )
+	virtual bool	ShouldPredict( void )
+	{
+		if ( GetOwner() == C_BasePlayer::GetLocalPlayer() )
+			return true;
+
+		return BaseClass::ShouldPredict();
+	}
+#endif
+private:
+	// A hack to work around missing animation feature
+	float	m_flStartedThrowAt;
+
+private:														
+	CWeaponShieldGrenade( const CWeaponShieldGrenade & );
+};
+
+IMPLEMENT_NETWORKCLASS_ALIASED( WeaponShieldGrenade, DT_WeaponShieldGrenade )
+
+BEGIN_NETWORK_TABLE( CWeaponShieldGrenade, DT_WeaponShieldGrenade )
+END_NETWORK_TABLE()
+
+LINK_ENTITY_TO_CLASS( weapon_shield_grenade, CWeaponShieldGrenade );
+PRECACHE_WEAPON_REGISTER(weapon_shield_grenade);
+
+BEGIN_PREDICTION_DATA( CWeaponShieldGrenade )
+	DEFINE_FIELD( m_flStartedThrowAt, FIELD_FLOAT ),
+END_PREDICTION_DATA();
+
+CWeaponShieldGrenade::CWeaponShieldGrenade( void )
+{
+	SetPredictionEligible( true );
+}
+
+//-----------------------------------------------------------------------------
+// Yeehaw
+//-----------------------------------------------------------------------------
+void CWeaponShieldGrenade::Spawn( void )
+{
+	BaseClass::Spawn();
+    m_flStartedThrowAt = 0.0f;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void CWeaponShieldGrenade::ItemPostFrame( void )
+{
+	CBasePlayer *pOwner = ToBasePlayer( GetOwner() );
+	if (!pOwner)
+		return;
+
+	// Look for button downs
+	if ( (pOwner->m_nButtons & IN_ATTACK) && !m_flStartedThrowAt && (m_flNextPrimaryAttack <= gpGlobals->curtime) )
+	{
+		m_flStartedThrowAt = gpGlobals->curtime;
+
+		SendWeaponAnim( ACT_VM_DRAW );
+	}
+
+	// Look for button ups
+	if ( (pOwner->m_afButtonReleased & IN_ATTACK) && (m_flNextPrimaryAttack <= gpGlobals->curtime) && m_flStartedThrowAt )
+	{
+		m_flNextPrimaryAttack = gpGlobals->curtime;
+		PrimaryAttack();
+		m_flStartedThrowAt = 0;
+	}
+
+	//  No buttons down?
+	if ( !((pOwner->m_nButtons & IN_ATTACK) || (pOwner->m_nButtons & IN_ATTACK2) || (pOwner->m_nButtons & IN_RELOAD)) )
+	{
+		WeaponIdle( );
+	}
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void CWeaponShieldGrenade::PrimaryAttack( void )
+{
+	CBasePlayer *pPlayer = dynamic_cast<CBasePlayer*>( GetOwner() );
+	if ( !pPlayer )
+		return;
+
+	if ( !ComputeEMPFireState() )
+		return;
+
+	if ( !GetPrimaryAmmo() )
+		return;
+
+	// player "shoot" animation
+	PlayAttackAnimation( ACT_VM_THROW );
+
+	ThrowGrenade();
+
+	// Setup for refire
+	m_flNextPrimaryAttack = gpGlobals->curtime + 1.0;
+	CheckRemoveDisguise();
+
+	// If I'm now out of ammo, switch away
+	if ( !HasPrimaryAmmo() )
+	{
+		g_pGameRules->GetNextBestWeapon( pPlayer, NULL );
+	}
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void CWeaponShieldGrenade::ThrowGrenade( void )
+{
+	CBasePlayer *pPlayer = dynamic_cast<CBasePlayer*>( GetOwner() );
+	if ( !pPlayer )
+		return;
+
+	BaseClass::WeaponSound(WPN_DOUBLE);
+
+	// Calculate launch velocity (3 seconds for max distance)
+	float flThrowTime = MIN( (gpGlobals->curtime - m_flStartedThrowAt), 3.0 );
+	float flSpeed = 800 + (200 * flThrowTime);
+
+	// If the player's crouched, roll the grenade
+	if ( pPlayer->GetFlags() & FL_DUCKING )
+	{
+		// Launch the grenade
+		Vector vecForward;
+		QAngle vecAngles = pPlayer->EyeAngles();
+		// Throw it up just a tad
+		vecAngles.x = -1;
+		AngleVectors( vecAngles, &vecForward, NULL, NULL);
+		Vector vecOrigin;
+		VectorLerp( pPlayer->EyePosition(), pPlayer->GetAbsOrigin(), 0.25f, vecOrigin );
+		vecOrigin += (vecForward * 16);
+		vecForward = vecForward * flSpeed;
+
+		QAngle vecGrenAngles;
+		vecGrenAngles.Init( 0, vecAngles.y, 0 );
+#if !defined( CLIENT_DLL )
+		CreateShieldGrenade( vecOrigin, vecGrenAngles, vecForward, vec3_angle, pPlayer, SHIELD_GRENADE_LIFETIME );
+#endif
+	}
+	else
+	{
+		// Launch the grenade
+		Vector vecForward;
+		QAngle vecAngles = pPlayer->EyeAngles();
+		AngleVectors( vecAngles, &vecForward, NULL, NULL);
+		Vector vecOrigin = pPlayer->EyePosition();
+		vecOrigin += (vecForward * 16);
+		vecForward = vecForward * flSpeed;
+
+		QAngle vecGrenAngles;
+		vecGrenAngles.Init( 0, vecAngles.y, 0 );
+#if !defined( CLIENT_DLL )
+		CreateShieldGrenade( vecOrigin, vecGrenAngles, vecForward, vec3_angle, pPlayer, SHIELD_GRENADE_LIFETIME );
+#endif
+	}
+
+	pPlayer->RemoveAmmo( 1, m_iPrimaryAmmoType );
+}