public void Update(GameTime gameTime, bool isActive, bool isOverlayed)
{
_world.Update(gameTime, _camera);
#region Camera
// Move the camera.
var dt = (float)gameTime.ElapsedGameTime.TotalSeconds;
var keyboardState = Keyboard.GetState();
if (keyboardState.IsKeyDown(Keys.A))
{
_cameraNode.Move(new Vector3(-50.0f * dt, 0.0f, 0.0f));
}
if (keyboardState.IsKeyDown(Keys.D))
{
_cameraNode.Move(new Vector3(50.0f * dt, 0.0f, 0.0f));
}
if (keyboardState.IsKeyDown(Keys.S))
{
_cameraNode.Move(new Vector3(0.0f, 50.0f * dt, 0.0f));
}
if (keyboardState.IsKeyDown(Keys.W))
{
_cameraNode.Move(new Vector3(0.0f, -50.0f * dt, 0.0f));
}
if (keyboardState.IsKeyDown(Keys.E))
{
_cameraNode.Scale += Vector3.One * 1.0f * dt;
}
if (keyboardState.IsKeyDown(Keys.Q))
{
var scale = _cameraNode.Scale;
scale -= Vector3.One * 1.0f * dt;
if (scale.X < 0.0f)
{
scale.X = 0.0f;
}
if (scale.Y < 0.0f)
{
scale.Y = 0.0f;
}
_cameraNode.Scale = scale;
}
#endregion
#region Circle brush
var mouseState = Mouse.GetState();
// Translate the mouse position to the scene.
var mousePosition = new Vector3(mouseState.X, mouseState.Y, 0.0f);
Matrix projectionMatrix, viewMatrix;
_camera.GetMatrices(out projectionMatrix, out viewMatrix);
mousePosition = _camera.Viewport.Unproject(mousePosition, projectionMatrix, viewMatrix, Matrix.Identity);
// Position the brush.
_circleBrushNode.Position = new Vector3(mousePosition.X, mousePosition.Y, 0.0f);
// Handle mouse click.
// Remove quads by setting their state to disabled using the left mouse button.
if (mouseState.LeftButton == ButtonState.Pressed && _oldMouseState.LeftButton == ButtonState.Released)
{
_circleBrushNode.FindMovable <CircleRenderable>().Color = new Vector3(1.0f, 0.0f, 0.0f);
}
else if (mouseState.LeftButton == ButtonState.Pressed && _oldMouseState.LeftButton == ButtonState.Pressed)
{
var position = _circleBrushNode.Position;
_circleBrush.Position = new Vector2(position.X, position.Y);
_terrain.SetQuads(_circleBrush, false);
}
else if (mouseState.LeftButton == ButtonState.Released && _oldMouseState.LeftButton == ButtonState.Pressed)
{
_circleBrushNode.FindMovable <CircleRenderable>().Color = Vector3.One;
}
// Add quads by setting their state to enabled using the right mouse button.
if (mouseState.RightButton == ButtonState.Pressed && _oldMouseState.RightButton == ButtonState.Released)
{
_circleBrushNode.FindMovable <CircleRenderable>().Color = new Vector3(0.0f, 1.0f, 0.0f);
}
else if (mouseState.RightButton == ButtonState.Pressed && _oldMouseState.RightButton == ButtonState.Pressed)
{
var position = _circleBrushNode.Position;
_circleBrush.Position = new Vector2(position.X, position.Y);
_terrain.SetQuads(_circleBrush, true);
}
else if (mouseState.RightButton == ButtonState.Released && _oldMouseState.RightButton == ButtonState.Pressed)
{
_circleBrushNode.FindMovable <CircleRenderable>().Color = Vector3.One;
}
// Store old mouse state.
_oldMouseState = mouseState;
#endregion
}
