protected override void OnUpdateFrame(FrameEventArgs e)
{
physics.Update((float)e.Time);
if (Keyboard[OpenTK.Input.Key.Escape] || Keyboard[OpenTK.Input.Key.Q])
{
Exit();
}
}
protected override void OnUpdateFrame(FrameEventArgs e)
{
physics.Update((float)e.Time);
KeyboardState state = OpenTK.Input.Keyboard.GetState();
if (state.IsKeyDown(Key.Escape) || state.IsKeyDown(Key.Q))
{
Exit();
}
}
protected override void OnUpdateFrame(FrameEventArgs e)
{
_physics.Update((float)e.Time);
var keyboard = Keyboard.GetState();
if (keyboard[Key.Escape] || keyboard[Key.Q])
{
Exit();
}
}
protected override void Update(GameTime gameTime)
{
KeyboardState ns = Keyboard.GetState();
if (ns.IsKeyDown(Keys.Escape) || ns.IsKeyDown(Keys.Q))
{
Exit();
}
// Toggle debug
if (ns.IsKeyDown(Keys.F3))
{
if (f3KeyPressed == false)
{
f3KeyPressed = true;
if (IsDebugDrawEnabled == false)
{
DebugDrawer.DebugMode = DebugDrawModes.DrawAabb;
IsDebugDrawEnabled = true;
}
else
{
DebugDrawer.DebugMode = DebugDrawModes.None;
IsDebugDrawEnabled = false;
}
}
}
if (f3KeyPressed == true)
{
if (ns.IsKeyUp(Keys.F3))
{
f3KeyPressed = false;
}
}
viewMatrix = Matrix.CreateLookAt(eye, target, Vector3.UnitY);
physics.Update((float)gameTime.ElapsedGameTime.TotalSeconds);
base.Update(gameTime);
}
protected override void OnUpdateFrame(FrameEventArgs e)
{
_physics.Update((float)e.Time);
var keyboard = Keyboard.GetState();
if (keyboard[Key.Escape] || keyboard[Key.Q])
{
Exit();
}
var input = Keyboard.GetState();
// camera parameters
const float cameraSpeed = 3f;
// panning
if (input.IsKeyDown(Key.W))
{
position += Vector3.UnitY * cameraSpeed * (float)e.Time; // Up
}
if (input.IsKeyDown(Key.S))
{
position -= Vector3.UnitY * cameraSpeed * (float)e.Time; // Down
}
if (input.IsKeyDown(Key.A))
{
position -= Vector3.UnitX * cameraSpeed * (float)e.Time; // Left
}
if (input.IsKeyDown(Key.D))
{
position += Vector3.UnitX * cameraSpeed * (float)e.Time; // Right
}
var mouse = Mouse.GetCursorState();
var window = Location;
var cursor = new Point(mouse.X - window.X - 8, mouse.Y - window.Y - 38);
if (cursor.X >= 0 && cursor.X < Width && cursor.Y >= 0 && cursor.Y < Height)
{
OpenTK.Vector4 ndcStart = new OpenTK.Vector4(
((float)cursor.X / Width - 0.5f) * 2,
((float)(Height - cursor.Y) / Height - 0.5f) * 2,
-1, 1);
OpenTK.Vector4 ndcEnd = new OpenTK.Vector4(
((float)cursor.X / Width - 0.5f) * 2,
((float)(Height - cursor.Y) / Height - 0.5f) * 2,
0, 1);
var projInv = Matrix4.Invert(Matrix4.Transpose(perspective));
var viewInv = Matrix4.Invert(Matrix4.Transpose(lookAt));
var rayStartCamera = projInv * ndcStart;
rayStartCamera /= rayStartCamera.W;
var rayStartWorld = viewInv * rayStartCamera;
rayStartWorld /= rayStartWorld.W;
var rayEndCamera = projInv * ndcEnd;
rayEndCamera /= rayEndCamera.W;
var rayEndWorld = viewInv * rayEndCamera;
rayEndWorld /= rayEndWorld.W;
var rayDir = OpenTK.Vector4.Normalize(rayEndWorld - rayStartWorld);
rayEndWorld = rayDir * 1000;
var source = new BulletSharp.Math.Vector3(rayStartWorld.X, rayStartWorld.Y, rayStartWorld.Z);
var dest = new BulletSharp.Math.Vector3(rayEndWorld.X, rayEndWorld.Y, rayEndWorld.Z);
using (var cb = new ClosestRayResultCallback(ref source, ref dest))
{
_physics.World.RayTestRef(ref source, ref dest, cb);
if (cb.HasHit)
{
isHit = true;
}
else
{
isHit = false;
}
}
}
Title = $"BulletSharp OpenTK Demo, MousePos = ({cursor.X}, {cursor.Y})";
}
bool root_FrameStarted(FrameEvent evt)
{
physics.Update(evt.timeSinceLastFrame);
return(true);
}