1 files changed, 117 insertions, 0 deletions
diff --git a/game/shared/tf2/tf_obj_manned_plasmagun_shared.cpp b/game/shared/tf2/tf_obj_manned_plasmagun_shared.cpp
new file mode 100644
index 0000000..9cbb4f1
--- /dev/null
+++ b/game/shared/tf2/tf_obj_manned_plasmagun_shared.cpp
@@ -0,0 +1,117 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: A stationary gun that players can man
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#include "cbase.h"
+#include "tf_obj_manned_plasmagun_shared.h"
+#include "tf_movedata.h"
+
+ConVar mannedgun_usethirdperson( "mannedgun_usethirdperson", "1", FCVAR_REPLICATED, "Use third person view while in manned guns built on vehicles." );
+
+#define MANNED_PLASMAGUN_AIMING_CONE_ANGLE	45.0f	// total angle of aiming
+#define MANNED_PLASMAGUN_YAW_SPEED			1000.0f
+#define MANNED_PLASMAGUN_MAX_PITCH			50.0f
+#define MANNED_PLASMAGUN_BARREL_MAX_PITCH	30.0f
+
+float CObjectMannedPlasmagunMovement::GetMaxYaw() const
+{
+	return MANNED_PLASMAGUN_AIMING_CONE_ANGLE;
+}
+
+float CObjectMannedPlasmagunMovement::GetMinYaw() const
+{
+	return -MANNED_PLASMAGUN_AIMING_CONE_ANGLE;
+}
+
+float CObjectMannedPlasmagunMovement::GetMaxPitch() const
+{
+	return MANNED_PLASMAGUN_MAX_PITCH;
+}
+
+void CObjectMannedPlasmagunMovement::ProcessMovement( CBasePlayer *pPlayer, CMoveData *pMove )
+{
+	CTFMoveData *pMoveData = (CTFMoveData*)pMove; 
+	Assert( sizeof(MannedPlasmagunData_t) <= pMoveData->VehicleDataMaxSize() );
+
+	MannedPlasmagunData_t *pVehicleData = (MannedPlasmagunData_t*)pMoveData->VehicleData();
+
+	bool bSimple = (pVehicleData->m_nMoveStyle == MOVEMENT_STYLE_SIMPLE);
+	CBaseTFVehicle *pVehicle = pVehicleData->m_pVehicle;
+
+	// Flush caches since bone controllers might be wrong since they are not in the cache yet
+	pVehicle->InvalidateBoneCache();
+
+	// Get the view direction *in world coordinates*
+	Vector vPlayerEye = pPlayer->EyePosition();
+	QAngle angEyeAngles = pPlayer->LocalEyeAngles();
+	Vector vPlayerForward;
+	AngleVectors( angEyeAngles, &vPlayerForward, NULL, NULL );
+
+
+	// Now figure out the pitch. This is done by casting a ray to see where the player's aiming reticle is pointing.
+	// Then we do some trig to find out what angle the turret should point so it can see the target.
+	// NOTE: this is done in the tank's local space so it works when the tank is banked.
+	VMatrix mGunToWorld = SetupMatrixTranslation(pVehicle->GetAbsOrigin()) * SetupMatrixAngles(pVehicle->GetAbsAngles());
+	VMatrix mWorldToGun = mGunToWorld.InverseTR();
+
+	// First trace only on the world..
+	Vector start = vPlayerEye;
+	Vector end   = start + vPlayerForward * 5000.0f;
+
+	Vector vTarget;
+	if ( bSimple )
+	{
+		vTarget = end;
+	}
+	else
+	{
+		trace_t trace;
+		UTIL_TraceLine(start, end, MASK_SOLID_BRUSHONLY, pVehicle, COLLISION_GROUP_NONE, &trace);
+		vTarget = trace.endpos;
+		if(trace.fraction == 1)
+		{
+			// It didn't hit the world, so trace on ents.
+			UTIL_TraceLine(start, end, MASK_PLAYERSOLID|MASK_NPCSOLID, pVehicle, COLLISION_GROUP_NONE, &trace);
+			vTarget = trace.endpos;
+			if(trace.fraction == 1)
+			{
+				// Didn't hit any ents.. just assume it's way out in front of the player's view.
+				vTarget = end;
+			}
+		}
+	}
+
+	// Transform the world position into gun space.
+	vTarget = mWorldToGun * vTarget;
+
+
+	// Compute the position of the barrel pivot point as measured in the coordinate system of the gun
+	Vector vTurretBase;
+	QAngle vTurretBaseAngles;
+	pVehicle->GetAttachment(pVehicleData->m_nBarrelPivotAttachment, vTurretBase, vTurretBaseAngles);
+
+	vTurretBase = mWorldToGun * vTurretBase;
+
+	// Make everything be relative to the pivot...
+	vTarget -= vTurretBase;
+
+
+	// Now we've got the target vector in local space. Now just figure out what 
+	// the gun angles need to be to hit the target.
+	QAngle vWantedAngles;
+	VectorAngles( vTarget, vWantedAngles );
+
+	pVehicleData->m_flGunPitch = vWantedAngles[PITCH];
+	pVehicleData->m_flGunYaw = vWantedAngles[YAW];
+
+
+	// Place the player at the feet of the vehicle
+	Vector vStandAngles;
+
+	pVehicle->GetAttachmentLocal(pVehicleData->m_nStandAttachment, pMove->m_vecAbsOrigin, pMove->m_vecAngles);
+}
+
+