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game/client/tf2/c_vehicle_tank.cpp

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+//=============================================================================//
+
+#include "cbase.h"
+#include "c_basefourwheelvehicle.h"
+#include "tf_movedata.h"
+#include "ObjectControlPanel.h"
+#include <vgui_controls/Label.h>
+#include <vgui_controls/Button.h>
+#include "vgui_rotation_slider.h"
+#include <vgui/ISurface.h>
+#include "vgui_basepanel.h"
+#include "ground_line.h"
+#include "hud_minimap.h"
+#include "vgui_bitmapimage.h"
+#include "view.h"
+#include "c_basetempentity.h"
+#include "particles_simple.h"
+#include "in_buttons.h"
+
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+class C_VehicleTank : public C_BaseTFFourWheelVehicle
+{
+	DECLARE_CLASS( C_VehicleTank, C_BaseTFFourWheelVehicle );
+public:
+	DECLARE_CLIENTCLASS();
+
+	C_VehicleTank();
+
+
+	virtual void ClientThink();
+
+	virtual void OnItemPostFrame( CBaseTFPlayer *pDriver );
+
+// C_BaseEntity overrides.
+public:
+	virtual void GetBoneControllers(float controllers[MAXSTUDIOBONECTRLS]);
+
+private:
+	C_VehicleTank( const C_VehicleTank & );		// not defined, not accessible
+
+	float m_flClientYaw;
+	float m_flClientPitch;
+
+	// Sent by the server. This is what we render with.
+	float m_flTurretYaw;
+	float m_flTurretPitch;
+};
+
+
+IMPLEMENT_CLIENTCLASS_DT( C_VehicleTank, DT_VehicleTank, CVehicleTank )
+	RecvPropFloat( RECVINFO( m_flTurretYaw ) ),
+	RecvPropFloat( RECVINFO( m_flTurretPitch ) )
+END_RECV_TABLE()
+
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+
+C_VehicleTank::C_VehicleTank()
+{
+	m_flClientYaw = 0;
+	m_flClientPitch = 0;
+	m_flTurretYaw = 0;
+	m_flTurretPitch = 0;
+}
+
+
+void C_VehicleTank::ClientThink()
+{
+	if ( GetPassenger( VEHICLE_ROLE_DRIVER ) == C_BasePlayer::GetLocalPlayer() )
+	{
+		// Cast a ray out of the view to see where the player is looking.
+		trace_t trace;
+		UTIL_TraceLine( 
+			MainViewOrigin(), 
+			MainViewOrigin() + MainViewForward() * 100000,
+			MASK_OPAQUE, NULL,
+			COLLISION_GROUP_NONE,
+			&trace );
+
+		if ( trace.fraction < 1 )
+		{
+			// Figure out what angles our turret needs to be at in order to hit the target.
+
+			Vector vFireOrigin;
+			QAngle dummy;
+			GetAttachment( LookupAttachment( "barrel" ), vFireOrigin, dummy );
+
+			// Get a direction vector that points at the target.
+			Vector vTo = trace.endpos - vFireOrigin;
+
+			// Transform it into the tank's local space.
+			matrix3x4_t tankToWorld;
+			AngleMatrix( GetAbsAngles(), tankToWorld );
+			
+			Vector vLocalTo;
+			VectorITransform( vTo, tankToWorld, vLocalTo );
+
+			// Now figure out what the angles are in local space.
+			QAngle localAngles;
+			VectorAngles( vLocalTo, localAngles );
+
+			// Make the angles adhere to the definition in CVehicleTank's header.
+			m_flClientYaw = localAngles[YAW] - 90;
+			m_flClientPitch = anglemod( -localAngles[PITCH] );
+
+
+			char cmd[512];
+			Q_snprintf( cmd, sizeof( cmd ), "TurretAngles %.2f %.2f", m_flClientYaw, m_flClientPitch );
+			SendClientCommand( cmd );
+		}
+	}
+
+	BaseClass::ClientThink();
+}
+
+
+void C_VehicleTank::GetBoneControllers( float controllers[MAXSTUDIOBONECTRLS])
+{
+	BaseClass::GetBoneControllers( controllers );
+
+	controllers[0] = anglemod( m_flTurretYaw ) / 360.0;
+	controllers[1] = anglemod( m_flTurretPitch ) / 360.0;
+}
+
+//-----------------------------------------------------------------------------
+// Here's where we deal with weapons
+//-----------------------------------------------------------------------------
+void C_VehicleTank::OnItemPostFrame( CBaseTFPlayer *pDriver )
+{
+	if ( GetPassengerRole(pDriver) != VEHICLE_ROLE_DRIVER )
+		return;
+
+	if ( pDriver->m_nButtons & IN_ATTACK )
+	{
+	}
+	else if ( pDriver->m_nButtons & (IN_ATTACK2 | IN_SPEED) )
+	{
+		BaseClass::OnItemPostFrame( pDriver );
+	}
+}
+