static bool device_OnEvent(Event evnt)
{
if (evnt.Type == EventType.Mouse)
{
Dimension2Di s = device.VideoDriver.ScreenSize;
if (evnt.Mouse.Type == MouseEventType.Wheel)
{
Rectd r = new Rectd();
if (evnt.Mouse.Wheel > 0)
{
// zoom in
int x1 = evnt.Mouse.X - s.Width / 2 + (int)evnt.Mouse.Wheel * s.Width / 10;
int y1 = evnt.Mouse.Y - s.Height / 2 + (int)evnt.Mouse.Wheel * s.Height / 10;
r.UpperLeftCorner = fGen.GetWindowCoord(x1, y1);
r.LowerRightCorner = fGen.GetWindowCoord(2 * evnt.Mouse.X - x1, 2 * evnt.Mouse.Y - y1);
device.CursorControl.Position = new Vector2Di(s.Width / 2, s.Height / 2);
}
else
{
// zoom out
int x1 = s.Width / 10;
int y1 = s.Height / 10;
r.UpperLeftCorner = fGen.GetWindowCoord(-x1, -y1);
r.LowerRightCorner = fGen.GetWindowCoord(s.Width + x1, s.Height + y1);
}
fGen.Generate(r);
return(true);
}
if (evnt.Mouse.Type == MouseEventType.LeftDown)
{
mouseMoveStart = new Vector2Di(evnt.Mouse.X, evnt.Mouse.Y);
return(true);
}
if (evnt.Mouse.Type == MouseEventType.LeftUp)
{
Vector2Dd p1 = fGen.GetWindowCoord(evnt.Mouse.X, evnt.Mouse.Y);
Vector2Dd p2 = fGen.GetWindowCoord(mouseMoveStart.X, mouseMoveStart.Y);
Rectd r = fGen.GetWindow() + p2 - p1;
fGen.Generate(r);
mouseMoveStart = null;
return(true);
}
}
if (evnt.Type == EventType.Key)
{
if (evnt.Key.PressedDown)
{
if (evnt.Key.Key == KeyCode.Esc)
{
device.Close();
return(true);
}
if (evnt.Key.Key == KeyCode.F1)
{
showHelp = !showHelp;
return(true);
}
switch (evnt.Key.Char)
{
case '+':
fGen.Generate(fGen.GetMaxIterations() + 1);
return(true);
case '-':
fGen.Generate(fGen.GetMaxIterations() - 1);
return(true);
case '*':
fGen.Generate(fGen.GetMaxIterations() + 10);
return(true);
case '/':
fGen.Generate(fGen.GetMaxIterations() - 10);
return(true);
}
}
if (evnt.Key.Key == KeyCode.PrintScreen) // PrintScreen never comes with "evnt.Key.PressedDown == true" so we process it without checking that
{
string n = "Screenshot-" + DateTime.Now.Ticks + ".png";
Image i = device.VideoDriver.CreateScreenShot();
device.VideoDriver.WriteImage(i, n);
i.Drop();
device.Logger.Log("Screenshot saved as " + n);
return(true);
}
}
return(false);
}
static void Main(string[] args)
{
device = IrrlichtDevice.CreateDevice(DriverType.Direct3D8, new Dimension2Di(1024, 768));
if (device == null)
{
return;
}
device.SetWindowCaption("Fractal Generator - Irrlicht Engine");
device.OnEvent += new IrrlichtDevice.EventHandler(device_OnEvent);
VideoDriver driver = device.VideoDriver;
GUIFont font = device.GUIEnvironment.GetFont("../../media/fontlucida.png");
Color fontBackgroundColor = new Color(0x7f000000);
Color fontNormalColor = Color.OpaqueWhite;
Color fontActionColor = Color.OpaqueYellow;
fGen = new FractalGenerator(device);
fGen.Generate(new Rectd(
-driver.ScreenSize.Width / 250.0,
-driver.ScreenSize.Height / 250.0,
driver.ScreenSize.Width / 250.0,
driver.ScreenSize.Height / 250.0));
while (device.Run())
{
driver.BeginScene(false);
Vector2Di o = null;
if (mouseMoveStart != null)
{
o = device.CursorControl.Position - mouseMoveStart;
}
float w = fGen.DrawAll(o);
// draw stats
driver.Draw2DRectangle(new Recti(10, 10, 160, 56 + (w < 1 ? 16 : 0)), fontBackgroundColor);
Vector2Di v = new Vector2Di(20, 16);
font.Draw("Max iterations: " + fGen.GetMaxIterations(), v, fontNormalColor);
v.Y += 16;
font.Draw("Zoom: " + (long)fGen.GetZoomFactor().X + "x", v, fontNormalColor);
if (w < 1)
{
v.Y += 16;
font.Draw("Computing: " + (int)(w * 100) + "%...", v, fontActionColor);
}
// draw help
int h = driver.ScreenSize.Height;
driver.Draw2DRectangle(new Recti(10, showHelp ? h - 130 : h - 40, showHelp ? 220 : 160, h - 10), fontBackgroundColor);
v.Y = h - 34;
font.Draw("[F1] " + (showHelp ? "Hide" : "Show") + " help", v, fontNormalColor);
if (showHelp)
{
v.Y = h - 124;
font.Draw("[Mouse Left Button] Navigate", v, fontNormalColor);
v.Y += 16;
font.Draw("[Mouse Wheel] Zoom in/out", v, fontNormalColor);
v.Y += 16;
font.Draw("[+][-][*][/] Max iterations", v, fontNormalColor);
v.Y += 16;
font.Draw("[PrintScreen] Save screenshot", v, fontNormalColor);
v.Y += 16;
font.Draw("[Esc] Exit application", v, fontNormalColor);
}
driver.EndScene();
device.Yield();
}
fGen.Drop();
device.Drop();
}
static void Main(string[] args)
{
device = IrrlichtDevice.CreateDevice(DriverType.Direct3D8, new Dimension2Di(1024, 768));
if (device == null)
return;
device.SetWindowCaption("Fractal Generator - Irrlicht Engine");
device.OnEvent += new IrrlichtDevice.EventHandler(device_OnEvent);
VideoDriver driver = device.VideoDriver;
GUIFont font = device.GUIEnvironment.GetFont("../../media/fontlucida.png");
Color fontBackgroundColor = new Color(0x7f000000);
Color fontNormalColor = Color.OpaqueWhite;
Color fontActionColor = Color.OpaqueYellow;
fGen = new FractalGenerator(device);
fGen.Generate(new Rectd(
-driver.ScreenSize.Width / 250.0,
-driver.ScreenSize.Height / 250.0,
driver.ScreenSize.Width / 250.0,
driver.ScreenSize.Height / 250.0));
while (device.Run())
{
driver.BeginScene(false);
Vector2Di o = null;
if (mouseMoveStart != null)
o = device.CursorControl.Position - mouseMoveStart;
float w = fGen.DrawAll(o);
// draw stats
driver.Draw2DRectangle(new Recti(10, 10, 160, 56 + (w < 1 ? 16 : 0)), fontBackgroundColor);
Vector2Di v = new Vector2Di(20, 16);
font.Draw("Max iterations: " + fGen.GetMaxIterations(), v, fontNormalColor);
v.Y += 16;
font.Draw("Zoom: " + (long)fGen.GetZoomFactor().X + "x", v, fontNormalColor);
if (w < 1)
{
v.Y += 16;
font.Draw("Computing: " + (int)(w * 100) + "%...", v, fontActionColor);
}
// draw help
int h = driver.ScreenSize.Height;
driver.Draw2DRectangle(new Recti(10, showHelp ? h - 130 : h - 40, showHelp ? 220 : 160, h - 10), fontBackgroundColor);
v.Y = h - 34;
font.Draw("[F1] " + (showHelp ? "Hide" : "Show") + " help", v, fontNormalColor);
if (showHelp)
{
v.Y = h - 124;
font.Draw("[Mouse Left Button] Navigate", v, fontNormalColor);
v.Y += 16;
font.Draw("[Mouse Wheel] Zoom in/out", v, fontNormalColor);
v.Y += 16;
font.Draw("[+][-][*][/] Max iterations", v, fontNormalColor);
v.Y += 16;
font.Draw("[PrintScreen] Save screenshot", v, fontNormalColor);
v.Y += 16;
font.Draw("[Esc] Exit application", v, fontNormalColor);
}
driver.EndScene();
device.Yield();
}
fGen.Drop();
device.Drop();
}