public void ControlCamera(float dt, InputManager input, Viewport vp)
{
if(input.Keyboard.IsKeyJustPressed(Keys.LeftControl) || input.Keyboard.IsKeyJustPressed(Keys.RightControl)) {
if(input.Mouse.IsBound)
input.Mouse.Unbind();
else
input.Mouse.Bind(vp.Width / 2, vp.Height / 2);
return;
}
if(!input.Mouse.IsBound)
return;
Point p = input.Mouse.Displacement;
Vector3I moves = Vector3I.Zero;
moves.X += input.Keyboard.Current.IsKeyDown(Keys.D) ? 1 : 0;
moves.X -= input.Keyboard.Current.IsKeyDown(Keys.A) ? 1 : 0;
moves.Z += input.Keyboard.Current.IsKeyDown(Keys.W) ? 1 : 0;
moves.Z -= input.Keyboard.Current.IsKeyDown(Keys.S) ? 1 : 0;
moves.Y += input.Keyboard.Current.IsKeyDown(Keys.Space) ? 1 : 0;
moves.Y -= input.Keyboard.Current.IsKeyDown(Keys.LeftShift) ? 1 : 0;
Yaw += -p.X * YAW_SPEED * dt;
Pitch += -p.Y * PITCH_SPEED * dt;
mWorld =
Matrix.CreateFromYawPitchRoll(Yaw, Pitch, 0) *
Matrix.CreateTranslation(
moves.X * mWorld.Right +
moves.Y * mWorld.Up +
moves.Z * mWorld.Forward +
mWorld.Translation
);
}
public void ControlCamera(float dt, InputManager input, Viewport vp)
{
Point p = input.Mouse.Displacement;
if(input.Keyboard.Current.IsKeyDown(Keys.LeftControl)) {
if(input.Mouse.Current.MiddleButton == ButtonState.Pressed) {
// Zoom By FOV
if(p.Y != 0) FOV *= (float)Math.Pow(FOV_ZOOM_SPEED, dt * p.Y);
}
}
else if(input.Keyboard.Current.IsKeyDown(Keys.LeftShift)) {
if(input.Mouse.Current.MiddleButton == ButtonState.Pressed) {
// Pan
Vector3 eye = Eye;
Ray r1 = new Ray(eye, vp.Unproject(
new Vector3(input.Mouse.Previous.X, input.Mouse.Previous.Y, 1),
Projection,
View,
Matrix.Identity
));
Ray r2 = new Ray(eye, vp.Unproject(
new Vector3(input.Mouse.Current.X, input.Mouse.Current.Y, 1),
Projection,
View,
Matrix.Identity
));
Matrix mVI = Matrix.Invert(mView);
Plane hit = new Plane(Center, Center + mVI.Up, Center + mVI.Right);
//new Plane(Vector3.Normalize(eye - Center), 0f);
r1.Direction -= r1.Position; r1.Direction.Normalize();
float d1 = r1.Intersects(hit).Value;
Vector3 p1 = r1.Position + d1 * r1.Direction;
r2.Direction -= r2.Position; r2.Direction.Normalize();
float d2 = r2.Intersects(hit).Value;
Vector3 p2 = r2.Position + d2 * r2.Direction;
Center += p1 - p2;
}
}
else if(input.Mouse.Current.MiddleButton == ButtonState.Pressed) {
// Yaw
if(p.X != 0) Yaw -= YAW_SPEED * (p.X * dt);
// Pitch
if(p.Y != 0) Pitch += PITCH_SPEED * (p.Y * dt);
}
// Zoom By Distance
if(input.Mouse.ScrollDisplacement != 0) {
float amt = (input.Mouse.ScrollDisplacement / 60) * dt;
Distance = MathHelper.Clamp(Distance * (float)Math.Pow(DIST_ZOOM_SPEED, amt), 0.1f, 1000f);
}
if(input.Keyboard.IsKeyJustPressed(Keys.R)) {
// Reset The Camera
Center = Vector3.Zero;
Distance = 4f;
Pitch = MathHelper.PiOver4;
Yaw = 0;
FOV = MathHelper.PiOver4;
}
}
