private void InitializeSamples()
{
// Automatically find all samples using reflection. Samples are derived from
// GameComponent and have a SampleAttribute.
#if NETFX_CORE
_samples = GetType().GetTypeInfo()
.Assembly
.DefinedTypes
.Where(ti => ti.IsSubclassOf(typeof(GameComponent)) &&
SampleAttribute.GetSampleAttribute(ti.AsType()) != null)
.Select(ti => ti.AsType())
.ToList();
#else
_samples = Assembly.GetCallingAssembly()
.GetTypes()
.Where(t => typeof(GameComponent).IsAssignableFrom(t) &&
SampleAttribute.GetSampleAttribute(t) != null)
.ToList();
#endif
_samples.Sort(CompareSamples);
if (_samples.Count == 0)
{
throw new Exception("No samples found.");
}
// Set _nextSampleIndex to immediately start a specific sample.
_nextSampleIndex = _samples.IndexOf(_initialSample);
}
private void UpdateHelp()
{
string name = null;
SampleCategory category = SampleCategory.Unsorted;
string summary = null;
string description = null;
if (_sample != null)
{
var sampleType = _sample.GetType();
var sampleAttribute = SampleAttribute.GetSampleAttribute(sampleType);
if (sampleAttribute != null)
{
name = sampleType.Name;
category = sampleAttribute.Category;
summary = sampleAttribute.Summary;
description = sampleAttribute.Description;
}
}
// Create help text for the sample.
string helpText =
"Sample: " + (string.IsNullOrEmpty(name) ? "No sample selected" : name) +
"\nCategory: " + category +
"\n" +
"\nDescription:" +
"\n--------------" +
"\n" + (string.IsNullOrEmpty(summary) ? "-" : summary);
if (!string.IsNullOrEmpty(description))
helpText += "\n\n" + description;
// General controls.
helpText +=
"\n\nControls:" +
"\n-----------" +
"\nGeneral" +
"\n Press <Esc> or <Back> to show menu." +
"\n Press <F1> or <Left Stick> to show help." +
"\n Press <F3> to show profiling data (and also reset the data)." +
"\n Press <F4> to show options." +
"\n Press <F7> to hide GUI." +
"\n Press <PageUp/Down> or <DPad Left/Right> to switch samples." +
"\n Press <Keyboard End> or <Left Shoulder>+<Right Shoulder> to restart sample." +
"\n Press <P> to pause/resume physics and particle simulation." +
"\n Press <T> to single step physics and particle simulation when simulation is paused.";
// Controls of sample.
if (_sample != null)
foreach (var controlsAttribute in ControlsAttribute.GetControlsAttribute(_sample.GetType()))
helpText += "\n\n" + controlsAttribute.Description;
// Controls of game objects.
foreach (var gameObject in _gameObjectService.Objects)
foreach (var controlsAttribute in ControlsAttribute.GetControlsAttribute(gameObject.GetType()))
helpText += "\n\n" + controlsAttribute.Description;
_titleTextBlock.Text = (_sample != null) ? category + " - " + name : name;
_helpTextBlock.Text = helpText;
}
private static int CompareSamples(Type sampleA, Type sampleB)
{
var sampleAttributeA = SampleAttribute.GetSampleAttribute(sampleA);
var sampleAttributeB = SampleAttribute.GetSampleAttribute(sampleB);
// Sort by category...
var categoryA = sampleAttributeA.Category;
var categoryB = sampleAttributeB.Category;
if (categoryA < categoryB)
return -1;
if (categoryA > categoryB)
return +1;
// ...then by sample order.
int orderA = sampleAttributeA.Order;
int orderB = sampleAttributeB.Order;
return orderA - orderB;
}
private void CreateMenuWindow()
{
if (_menuWindow != null)
{
return;
}
// Window
// StackPanel (vertical)
// StackPanel (horizontal)
// Buttons
// TextBlock
// TabControl
// TabItem * per category
// ScrollViewer
// StackPanel (vertical)
// StackPanel (vertical) * per sample
// Button
// TextBlock
_menuWindow = new Window
{
Name = "MenuWindow",
Title = "Sample Browser",
X = 50,
Y = 50,
IsVisible = false,
HideOnClose = true
};
_menuWindow.Closed += OnWindowClosed;
var panel = new StackPanel
{
Margin = new Vector4F(10),
Orientation = Orientation.Vertical,
HorizontalAlignment = HorizontalAlignment.Stretch,
VerticalAlignment = VerticalAlignment.Stretch
};
_menuWindow.Content = panel;
var buttonsPanel = new StackPanel
{
Orientation = Orientation.Horizontal
};
panel.Children.Add(buttonsPanel);
AddButton(buttonsPanel, "Resume (Esc)", CloseWindows);
AddButton(buttonsPanel, "Help (F1)", ShowHelpWindow);
AddButton(buttonsPanel, "Profile (F3)", ShowProfilerWindow);
AddButton(buttonsPanel, "Options (F4)", ShowOptionsWindow);
#if !NETFX_CORE && !IOS
AddButton(buttonsPanel, "Exit (Alt-F4)", _game.Exit);
#endif
var label = new TextBlock
{
Text = "Select Sample:",
Margin = new Vector4F(2, 10, 0, 0)
};
panel.Children.Add(label);
var tabControl = new TabControl
{
Margin = new Vector4F(0, 3, 0, 0),
Width = 580,
#if WINDOWS_PHONE || ANDROID || IOS
Height = 300
#else
Height = 400
#endif
};
panel.Children.Add(tabControl);
// Each tab shows a sample category (Base, Mathematics, Geometry, ...).
var samplesByCategory = _samples.GroupBy(t => SampleAttribute.GetSampleAttribute(t).Category);
int category = -1;
foreach (var grouping in samplesByCategory)
{
category++;
var tabItem = new TabItem
{
Content = new TextBlock {
Text = grouping.Key.ToString()
},
};
tabControl.Items.Add(tabItem);
var scrollViewer = new ScrollViewer
{
HorizontalAlignment = HorizontalAlignment.Stretch,
VerticalAlignment = VerticalAlignment.Stretch,
HorizontalScrollBarVisibility = ScrollBarVisibility.Disabled
};
tabItem.TabPage = scrollViewer;
var itemsPanel = new StackPanel
{
Orientation = Orientation.Vertical,
Margin = new Vector4F(5),
HorizontalAlignment = HorizontalAlignment.Stretch,
VerticalAlignment = VerticalAlignment.Stretch
};
scrollViewer.Content = itemsPanel;
foreach (Type sample in grouping)
{
var item = new StackPanel
{
Orientation = Orientation.Vertical
};
itemsPanel.Children.Add(item);
string title = sample.Name;
var button = new Button
{
Content = new TextBlock {
Text = title
},
Width = 200,
#if WINDOWS_PHONE || ANDROID || IOS
Padding = new Vector4F(10),
#else
Padding = new Vector4F(0, 5, 0, 5),
#endif
};
int sampleIndex = _samples.IndexOf(sample);
button.Click += (s, e) =>
{
_nextSampleIndex = sampleIndex;
CloseWindows();
};
item.Children.Add(button);
string summary = SampleAttribute.GetSampleAttribute(sample).Summary;
summary = summary.Replace("\r\n", " ");
var summaryTextBlock = new TextBlock
{
Margin = new Vector4F(0, 3, 0, 12),
Text = summary,
WrapText = true
};
item.Children.Add(summaryTextBlock);
}
}
}