static void Main(string[] args)
{
// Initialize device.
DriverType driverType;
if (!AskUserForDriver(out driverType))
{
return;
}
IrrlichtDevice device = IrrlichtDevice.CreateDevice(driverType, new Dimension2Di(640, 480));
if (device == null)
{
return;
}
// Add event handling.
device.OnEvent += new IrrlichtDevice.EventHandler(device_OnEvent);
// Save important pointers.
VideoDriver driver = device.VideoDriver;
SceneManager smgr = device.SceneManager;
Logger logger = device.Logger;
// Initialize joysticks and print info about them.
List <JoystickInfo> joystickList = device.ActivateJoysticks();
if (joystickList != null)
{
logger.Log("Joystick support is enabled and " + joystickList.Count.ToString() + " joystick(s) are present.");
foreach (JoystickInfo j in joystickList)
{
logger.Log("Joystick " + j.Joystick.ToString() + ":");
logger.Log("\tName: \"" + j.Name + "\"");
logger.Log("\tAxisCount: " + j.AxisCount.ToString());
logger.Log("\tButtonCount: " + j.ButtonCount.ToString());
logger.Log("\tPovHat: " + j.PovHat.ToString());
}
}
else
{
logger.Log("Joystick support is not enabled.");
}
device.SetWindowCaption("Mouse and joystick - Irrlicht Lime - " + joystickList.Count.ToString() + " joystick(s)");
// Create an arrow mesh and move it around either with the joystick axis/hat,
// or make it follow the mouse pointer (when no joystick movement).
SceneNode node = smgr.AddMeshSceneNode(
smgr.AddArrowMesh(
"Arrow",
new Color(255, 0, 0),
new Color(0, 255, 0),
16, 16,
2.0f, 1.3f,
0.1f, 0.6f
)
);
node.SetMaterialFlag(MaterialFlag.Lighting, false);
CameraSceneNode camera = smgr.AddCameraSceneNode();
camera.Position = new Vector3Df(0, 0, -10);
// As in example #4, we'll use framerate independent movement.
uint then = device.Timer.Time;
const float MovementSpeed = 5.0f;
// Run main cycle.
while (device.Run())
{
// Work out a frame delta time.
uint now = device.Timer.Time;
float frameDeltaTime = (float)(now - then) / 1000.0f; // in seconds
then = now;
bool movedWithJoystick = false;
Vector3Df nodePosition = node.Position;
if (joystickList.Count > 0)
{
float moveHorizontal = 0.0f; // range is -1.0 for full left to +1.0 for full right
float moveVertical = 0.0f; // range is -1.0 for full down to +1.0 for full up
// We receive the full analog range of the axes, and so have to implement our own dead zone.
// This is an empirical value, since some joysticks have more jitter or creep around the center
// point than others. We'll use 5% of the range as the dead zone, but generally you would want
// to give the user the option to change this.
float DeadZone = 0.05f;
moveHorizontal = joystickState.Axis[0] / 32767.0f; // "0" for X axis
if (Math.Abs(moveHorizontal) < DeadZone)
{
moveHorizontal = 0.0f;
}
moveVertical = joystickState.Axis[1] / -32767.0f; // "1" for Y axis
if (Math.Abs(moveVertical) < DeadZone)
{
moveVertical = 0.0f;
}
// POV will contain 65535 if POV hat info no0t supported, so we can check its range.
ushort povDegrees = (ushort)(joystickState.POV / 100);
if (povDegrees < 360)
{
if (povDegrees > 0 && povDegrees < 180)
{
moveHorizontal = +1.0f;
}
else if (povDegrees > 180)
{
moveHorizontal = -1.0f;
}
if (povDegrees > 90 && povDegrees < 270)
{
moveVertical = -1.0f;
}
else if (povDegrees > 270 || povDegrees < 90)
{
moveVertical = +1.0f;
}
}
// If we have any movement, apply it.
if (Math.Abs(moveHorizontal) > 0.0001f || Math.Abs(moveVertical) > 0.0001f)
{
float m = frameDeltaTime * MovementSpeed;
nodePosition = new Vector3Df(moveHorizontal * m, moveVertical * m, nodePosition.Z);
movedWithJoystick = true;
}
}
// If the arrow node isn't being moved with the joystick, then have it follow the mouse cursor.
if (!movedWithJoystick)
{
// Create a ray through the mouse cursor.
Line3Df ray = smgr.SceneCollisionManager.GetRayFromScreenCoordinates(mouseState.Position, camera);
// And intersect the ray with a plane around the node facing towards the camera.
Plane3Df plane = new Plane3Df(nodePosition, new Vector3Df(0, 0, -1));
Vector3Df mousePosition;
if (plane.GetIntersectionWithLine(ray.Start, ray.Vector, out mousePosition))
{
// We now have a mouse position in 3d space; move towards it.
Vector3Df toMousePosition = mousePosition - nodePosition;
float availableMovement = frameDeltaTime * MovementSpeed;
if (toMousePosition.Length <= availableMovement)
{
nodePosition = mousePosition; // jump to the final position
}
else
{
nodePosition += toMousePosition.Normalize() * availableMovement; // move towards it
}
}
}
node.Position = nodePosition;
// Turn lighting on and off depending on whether the left mouse button is down.
node.SetMaterialFlag(MaterialFlag.Lighting, mouseState.IsLeftButtonDown);
// Draw all.
driver.BeginScene(true, true, new Color(113, 113, 133));
smgr.DrawAll();
driver.EndScene();
}
// Drop the device.
device.Drop();
}
