pxmlw6n2f/Gazebo_Distributed_MPI/gazebo/rendering/FPSViewController.cc

142 lines
3.9 KiB
C++

/*
* Copyright (C) 2012 Open Source Robotics Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#ifdef _WIN32
// Ensure that Winsock2.h is included before Windows.h, which can get
// pulled in by anybody (e.g., Boost).
#include <Winsock2.h>
#endif
#include "gazebo/math/Vector2i.hh"
#include "gazebo/common/MouseEvent.hh"
#include "gazebo/rendering/UserCamera.hh"
#include "gazebo/rendering/FPSViewController.hh"
#define TYPE_STRING "fps"
using namespace gazebo;
using namespace rendering;
//////////////////////////////////////////////////
FPSViewController::FPSViewController(UserCameraPtr _camera)
: ViewController(_camera)
{
this->xVelocityFactor = 1.0;
this->yVelocityFactor = 0.8;
this->typeString = TYPE_STRING;
}
//////////////////////////////////////////////////
FPSViewController::~FPSViewController()
{
}
//////////////////////////////////////////////////
void FPSViewController::Init()
{
this->xVelocityFactor = 1.0;
this->yVelocityFactor = 0.8;
this->xVelocity = math::Vector3::Zero;
this->yVelocity = math::Vector3::Zero;
}
//////////////////////////////////////////////////
void FPSViewController::Update()
{
if (this->xVelocity != math::Vector3::Zero ||
this->yVelocity != math::Vector3::Zero)
{
// Move based on the camera's current velocity
// Calculate delta based on frame rate
common::Time interval = common::Time::GetWallTime() -
this->camera->LastRenderWallTime();
float dt = interval.Float();
ignition::math::Vector3d trans = this->xVelocity.Ign() +
this->yVelocity.Ign();
this->camera->Translate(trans * dt);
}
}
//////////////////////////////////////////////////
void FPSViewController::HandleMouseEvent(const common::MouseEvent &_event)
{
if (!this->enabled)
return;
ignition::math::Vector2i drag = _event.Pos() - _event.PrevPos();
if (_event.Buttons() & common::MouseEvent::LEFT)
{
this->camera->Yaw(static_cast<ignition::math::Angle>(
IGN_DTOR(-drag.X()*0.1)));
this->camera->Pitch(static_cast<ignition::math::Angle>(
IGN_DTOR(drag.Y()*0.1)));
}
else if (_event.Type() == common::MouseEvent::SCROLL)
{
if (_event.Scroll().Y() < 0)
{
this->xVelocityFactor *= 1.05;
this->yVelocityFactor *= 1.05;
this->xVelocity *= 1.05;
this->yVelocity *= 1.05;
}
else
{
this->xVelocityFactor *= 0.95;
this->yVelocityFactor *= 0.95;
this->xVelocity *= 0.95;
this->yVelocity *= 0.95;
}
}
}
//////////////////////////////////////////////////
std::string FPSViewController::GetTypeString()
{
return TYPE_STRING;
}
//////////////////////////////////////////////////
void FPSViewController::HandleKeyReleaseEvent(const std::string & _key)
{
if (_key.compare("w") == 0 || _key.compare("s") == 0)
this->xVelocity = math::Vector3::Zero;
if (_key.compare("a") == 0 || _key.compare("d") == 0)
this->yVelocity = math::Vector3::Zero;
}
//////////////////////////////////////////////////
void FPSViewController::HandleKeyPressEvent(const std::string & _key)
{
if (_key.compare("w") == 0)
this->xVelocity = math::Vector3(this->xVelocityFactor, 0, 0);
else if (_key.compare("s") == 0)
this->xVelocity = math::Vector3(-this->xVelocityFactor, 0, 0);
if (_key.compare("a") == 0)
this->yVelocity = math::Vector3(0, this->yVelocityFactor, 0);
else if (_key.compare("d") == 0)
this->yVelocity = math::Vector3(0, -this->yVelocityFactor, 0);
}