public void Update()
{
if (_field == null)
{
return;
}
_visualHost.Update();
//double[] xVel = _field.XVel;
//double[] yVel = _field.YVel;
//if (xVel.Length != yVel.Length)
//{
// throw new ApplicationException("X and Y arrays aren't the same size: " + xVel.Length.ToString() + ", " + yVel.Length.ToString());
//}
//if (xVel.Length != _lineVisuals.Length)
//{
// ResetField();
// return; // try again next update
//}
//for (int cntr = 0; cntr < xVel.Length; cntr++)
//{
// _lineVisuals[cntr].X2 = _lineVisuals[cntr].X1 + xVel[cntr];
// _lineVisuals[cntr].Y2 = _lineVisuals[cntr].Y1 + yVel[cntr];
//}
}
private void Timer_Tick(object sender, EventArgs e)
{
const double ONEOVER256 = 1d / 256d;
try
{
if (_field == null)
{
_timer.IsEnabled = false;
return;
}
//TODO: Populate the space between mouse locations from the last tick (instead of drawing spots)
//TODO: Allow for some keyboard modifiers, brush buttons, etc for more options:
// Shape
// Fade/Grow
if (_isLeftDown || _isRightDown)
{
double radius = trkBrushSize.Value * .5d;
int[] clickFieldPoints = GetFieldCircle(_mousePointHistory[_mousePointHistory.Count - 1], radius, radius, _field);
if (radColorBrush.IsChecked.Value)
{
#region Color Brush
Random rand = StaticRandom.GetRandomForThread();
Color color = GetRandomColor(rand, _brushColorType);
double colorR = color.R * ONEOVER256;
double colorG = color.G * ONEOVER256;
double colorB = color.B * ONEOVER256;
double velScale = trkVelocityMultiplier.Value;
Vector dragVelocity = GetDragVelocity() ?? new Vector(0, 0);
double velX = dragVelocity.X * velScale;
double velY = dragVelocity.Y * velScale;
bool applyVelocity = _isRightDown || (_isLeftDown && chkVelocityOnLeftDrag.IsChecked.Value);
bool randPerPixel = chkRandColorPerPixel.IsChecked.Value;
foreach (int point in clickFieldPoints)
{
if (_isLeftDown)
{
if (randPerPixel)
{
color = GetRandomColor(rand, _brushColorType);
colorR = color.R * ONEOVER256;
colorG = color.G * ONEOVER256;
colorB = color.B * ONEOVER256;
}
// Add color
_field.SetInk(0, point, colorR);
_field.SetInk(1, point, colorG);
_field.SetInk(2, point, colorB);
}
if (applyVelocity)
{
// Add velocity
_field.AddVel(point, velX, velY);
}
}
#endregion
}
else if (radWall.IsChecked.Value)
{
#region Wall
foreach (int point in clickFieldPoints)
{
_field.SetBlockedCell(point, _isLeftDown); // if both are down, left wins (execution only gets here if left or right are down, so if left is up, right must be down - or both down, which let left win)
}
#endregion
}
else
{
throw new ApplicationException("Unknown tool brush");
}
}
if (chkPauseResume.IsChecked.Value)
{
_field.Update();
}
DrawField(_bitmap, _field, chkShowWalls.IsChecked.Value);
// Velocity Viewer
if (chkVelocityOverlay.IsChecked.Value)
{
_velocityVisualizerPanel.Update();
}
if (_velocityVisualizerWindow != null)
{
_velocityVisualizerWindow.Update();
}
#region Analyze Field
// Colors > 1
if (chkFlagColor.IsChecked.Value)
{
if (_field.Layers.SelectMany(o => o).Any(o => Math.Abs(o) > 1))
{
chkFlagColor.Background = Brushes.Tomato;
chkFlagColor.Foreground = Brushes.Tomato;
}
else
{
chkFlagColor.Background = null;
chkFlagColor.Foreground = SystemColors.WindowTextBrush;
}
}
// Velocities > 1
if (chkFlagVelocity.IsChecked.Value)
{
if (Enumerable.Range(0, _field.KSize).Any(o => _field.XVel[o] * _field.XVel[o] + _field.YVel[o] * _field.YVel[o] > 1))
{
chkFlagVelocity.Background = Brushes.Tomato;
chkFlagVelocity.Foreground = Brushes.Tomato;
}
else
{
chkFlagVelocity.Background = null;
chkFlagVelocity.Foreground = SystemColors.WindowTextBrush;
}
}
#endregion
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(), this.Title, MessageBoxButton.OK, MessageBoxImage.Error);
}
}