Vector2 ChangeView(GameTime gameTime)
{
const float VERTICAL_INVERSION = -1.0f; // vertical view control
// negate to reverse
// handle change in view using right and left keys
int widthMiddle = glControl.Width / 2;
int heightMiddle = glControl.Height / 2;
Vector2 change = Vector2.Zero;
float scaleY = VERTICAL_INVERSION * (float)gameTime.ElapsedMilliseconds / 100.0f;
float scaleX = (float)gameTime.ElapsedMilliseconds / 400.0f;
// cursor not at center on X
if (MouseState.X != widthMiddle)
{
change.X = MouseState.X - widthMiddle;
change.X /= scaleX;
}
// cursor not at center on Y
if (MouseState.Y != heightMiddle)
{
change.Y = MouseState.Y - heightMiddle;
change.Y /= scaleY;
}
// reset cursor back to center
MouseState.SetPosition(glControl.PointToScreen(new Point((int)widthMiddle, (int)heightMiddle)));
return change;
}
protected void Update(object sender, GameTime gameTime)
{
if (KeyboardState.IsKeyDown(Keys.Escape)) this.Close();
// (float)gameTime.ElapsedMilliseconds()/6000
modelviewMatrix *= Matrix4.CreateRotationY(0.005F) * Matrix4.CreateTranslation(locX, locY, locZ);
float inc = 0.0012F;
locX += inc * fX;
locY += inc * fY * 1.8F;
locZ += inc * fZ * 1.15F;
if (locX > .1F && fX == 1) fX = -1; else if (locX < -.1F && fX == -1) fX = 1;
if (locY > .1F && fY == 1) fY = -1; else if (locY < -.1F && fY == -1) fY = 1;
if (locZ > .1F && fZ == 1) fZ = -1; else if (locZ < -.1F && fZ == -1) fZ = 1;
// update camera
//cam.SetFrameInterval(gameTime);
//cam.Move(Move());
//cam.Strafe(Strafe());
//cam.SetView(ChangeView(gameTime));
//modelviewMatrix *= Matrix4.CreateTranslation(Move() * Vector3.UnitZ);
//modelviewMatrix = cam.viewMatrix;
effect.View = modelviewMatrix;
}
static GameTime()
{
_staticReference = new GameTime();
game = new Timer();
game.Interval = 30;
game.Tick += game_Tick;
}
protected void Draw(object sender, GameTime gameTime)
{
Renderer.Clear();
effect.Draw();
glControl.SwapBuffers();
}
private void gameTick(object sender, GameTime e)
{
glControl.Invalidate();
}
/// <summary>
/// Sets time lapse between frames
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
public void SetFrameInterval(GameTime gameTime)
{
timeLapse = (float)gameTime.ElapsedMilliseconds;
}
