/// <summary>
/// Read from keyboard and mouse
/// and pass actions and keys to handlers
/// </summary>
private void readInput(Camera cam)
{
// if keyboard is acquired
if (KeyboardState == InputStateEnum.Acquire)
{
KeyboardState key_state;
//poll
try
{
g_keyboard.Poll();
}
catch (Exception e)
{
if (Result.GetResultFromException(e).Failure == true)
goto mouse_proccess;
}
// get keyboard state
key_state = g_keyboard.GetCurrentState();
/// combine the keys pressed to create
/// a move vector and pass
foreach (Key key in key_state.PressedKeys)
{
if (key == Key.Escape)
releaseInput();
if (AppHandleKeys != null)
{
// if the key have not be handle from application send it to camera
if (!AppHandleKeys(key))
{
cam.handleKeys(key);
}
}
else
{
cam.handleKeys(key);
}
}
}
mouse_proccess:
// if the engine owns the mouse device
if (MouseState == InputStateEnum.Acquire)
{
MouseState mouse_state;
try
{
g_mouse.Poll();
}
catch (Exception e)
{
if (Result.GetResultFromException(e).Failure == true)
return;
}
// get state
mouse_state = g_mouse.GetCurrentState();
// get list of mouse data
var bufferedData = g_mouse.GetBufferedData();
//fail check
if (bufferedData == null)
goto mouse_exit;
//fail check
if (bufferedData.Length == 0)
goto mouse_exit;
//counters
float cnt_x = 0;
float cnt_y = 0;
float cnt_z = 0;
// combine the mouse buffered data to create a single mouse state
foreach (var packet in bufferedData)
{
//handle event
switch (packet.Offset)
{
case MouseOffset.X:
mouse_state.X += (int)(packet.Value);
cnt_x++;
break;
case MouseOffset.Y:
mouse_state.Y += (int)(packet.Value);
cnt_y++;
break;
case MouseOffset.Z:
mouse_state.Z += (int)(packet.Value);
cnt_z++;
break;
}
}
//normalize..
if (cnt_x > 0) mouse_state.X = (int)(mouse_state.X / cnt_x); else mouse_state.X = 0;
if (cnt_y > 0) mouse_state.Y = (int)(mouse_state.Y / cnt_y); else mouse_state.Y = 0;
if (cnt_z > 0) mouse_state.Z = (int)(mouse_state.Z / cnt_z); else mouse_state.Z = 0;
/// pass the mouse state to camera handler
cam.handleMouse(mouse_state);
return;
}
mouse_exit:
if (cam != null)
cam.handleMouse(new MouseState());
}
public Viewport(int Width, int Height, IntPtr RenderControl,Format backFormat)
{
/// Bind the render control
this.m_RenderControl = RenderControl;
///
this.backFormat = backFormat;
SetView(Width, Height);
///////////////////////////////////////////////////////////////////////// Set the Camera
/// Set up the camera
m_Camera = new Camera(Width, Height);
m_Camera.SetViewParams(
new Vector3(0.0f, 1.0f, -10.0f),
new Vector3(0.0f, 1.0f, 0.0f));
///////////////////////////////////////////////////////////////////////// Set the Viewport
/// Setup the camera viewport
m_Viewport = new CamViewport();
/// No offset
m_Viewport.X = 0;
m_Viewport.Y = 0;
/// Size is equal to the size of the form
m_Viewport.Width = Width;
m_Viewport.Height = Height;
m_Viewport.MinZ = 0.0f;
m_Viewport.MaxZ = 1.0f;
///////////////////////////////////////////////////////////////////////// Set the Rasterizer state
m_RasterizerStateDesc = new RasterizerStateDescription();
m_RasterizerStateDesc.CullMode = Settings.CullMode;
m_RasterizerStateDesc.FillMode = Settings.FillMode;
m_RasterizerState = new RasterizerState(Engine.g_device, m_RasterizerStateDesc);
}
