Added BodyInterface::ApplyBuoyancyImpulse (#1062)

Jolt/Physics/Body/BodyInterface.cpp

@@ -794,6 +794,26 @@ void BodyInterface::AddAngularImpulse(const BodyID &inBodyID, Vec3Arg inAngularI
 	}
 }
 
+bool BodyInterface::ApplyBuoyancyImpulse(const BodyID &inBodyID, RVec3Arg inSurfacePosition, Vec3Arg inSurfaceNormal, float inBuoyancy, float inLinearDrag, float inAngularDrag, Vec3Arg inFluidVelocity, Vec3Arg inGravity, float inDeltaTime)
+{
+	BodyLockWrite lock(*mBodyLockInterface, inBodyID);
+	if (lock.Succeeded())
+	{
+		Body &body = lock.GetBody();
+		if (body.IsDynamic())
+		{
+			bool ret = body.ApplyBuoyancyImpulse(inSurfacePosition, inSurfaceNormal, inBuoyancy, inLinearDrag, inAngularDrag, inFluidVelocity, inGravity, inDeltaTime);
+
+			if (ret && !body.IsActive())
+				mBodyManager->ActivateBodies(&inBodyID, 1);
+
+			return ret;
+		}
+	}
+
+	return false;
+}
+
 void BodyInterface::SetPositionRotationAndVelocity(const BodyID &inBodyID, RVec3Arg inPosition, QuatArg inRotation, Vec3Arg inLinearVelocity, Vec3Arg inAngularVelocity)
 {
 	BodyLockWrite lock(*mBodyLockInterface, inBodyID);

Jolt/Physics/Body/BodyInterface.h

@@ -210,6 +210,7 @@ public:
 	void						AddImpulse(const BodyID &inBodyID, Vec3Arg inImpulse); ///< Applied at center of mass
 	void						AddImpulse(const BodyID &inBodyID, Vec3Arg inImpulse, RVec3Arg inPoint); ///< Applied at inPoint
 	void						AddAngularImpulse(const BodyID &inBodyID, Vec3Arg inAngularImpulse);
+	bool						ApplyBuoyancyImpulse(const BodyID &inBodyID, RVec3Arg inSurfacePosition, Vec3Arg inSurfaceNormal, float inBuoyancy, float inLinearDrag, float inAngularDrag, Vec3Arg inFluidVelocity, Vec3Arg inGravity, float inDeltaTime);
 	///@}
 
 	///@name Body type