onmouse.cc

2007年机器人足球世界杯3D仿真组亚军

#include "monitorglcanvas.hh"
#include "vector3.hh"
#include "monitorframe.hh"

using namespace bats;

void MonitorGLCanvas::OnMouse(wxMouseEvent& event)
{
  Vector3D oldPos = ((MonitorFrame*)GetParent())->getCamPos();
  Vector3D lookAt = ((MonitorFrame*)GetParent())->getCamLookAt();
  Vector3D up = ((MonitorFrame*)GetParent())->getCamUp();

  if (event.GetWheelRotation() != 0)
  {
    // Move cam in the direction we are looking at
    double delta = (oldPos[2]) / 100.0 * 5.0 * (event.GetWheelRotation() >= 0 ? 1 : -1);
    Vector3D newPos = oldPos + (lookAt - oldPos).normalize() * delta;
    if (newPos[2] > 0.5 && newPos[2] < 200.0)
      ((MonitorFrame*)GetParent())->moveCamPosTo(newPos);
    
  }
  
  if (event.ButtonDown())
  {
    cerr << "Clicky! " << event.GetX() << " " << event.GetY() << endl;
    
    d_lastX = event.GetX();
    d_lastY = event.GetY();
  }
  
  if (event.Dragging() && event.LeftIsDown())
  {
    int newX = event.GetX();
    int newY = event.GetY();

    // Strafe left/right
    Vector3D tmp = lookAt - oldPos;
    double meterPerPixel = 2 * tmp.length() / GetSize().GetWidth();
    Vector3D strafe = tmp.crossProduct(up).normalize() * (newX - d_lastX) * meterPerPixel;
    Vector3D newPos = oldPos - strafe;
    Vector3D newLookAt = lookAt - strafe;

    if (newPos[2] > 0.5 && newPos[2] < 200.0)
    {
      ((MonitorFrame*)GetParent())->moveCamPosTo(newPos);
      ((MonitorFrame*)GetParent())->moveCamLookAtTo(newLookAt);
    }

    // Strafe up/down
    strafe = up.normalize() * (newY - d_lastY) * meterPerPixel;
    newPos = newPos + strafe;
    newLookAt = newLookAt + strafe;
    if (newPos[2] > 0.5 && newPos[2] < 200.0)
    {
      ((MonitorFrame*)GetParent())->moveCamPosTo(newPos);
      ((MonitorFrame*)GetParent())->moveCamLookAtTo(newLookAt);
    }
    
    d_lastX = newX;
    d_lastY = newY;
    
  }
  if (event.Dragging() && event.RightIsDown())
  {
    int newX = event.GetX();
    int newY = event.GetY();

    // Strafe left/right
    Vector3D tmp = lookAt - oldPos;
    double meterPerPixel = 2 * tmp.length() / GetSize().GetWidth();
    Vector3D strafe = tmp.crossProduct(up).normalize() * (newX - d_lastX) * meterPerPixel;
    Vector3D newPos = oldPos - strafe;
    if (newPos[2] > 0.5 && newPos[2] < 200.0)
    {
      ((MonitorFrame*)GetParent())->moveCamPosTo(newPos);
    }

    // Strafe up/down
    strafe = up.normalize() * (newY - d_lastY) * meterPerPixel;
    newPos = newPos + strafe;
    if (newPos[2] > 0.5 && newPos[2] < 200.0)
    {
      ((MonitorFrame*)GetParent())->moveCamPosTo(newPos);
    }
    
    d_lastX = newX;
    d_lastY = newY;
    
  }

  ((MonitorFrame*)GetParent())->resetCamUp();

  wxCommandEvent refreshEvent(wxDO_REFRESH_EVT, -1);
  wxPostEvent(GetParent(), refreshEvent);
//  wxCommandEvent e;
//  paintGL(e);
}