void StepWand()
{
if (wandStream == null)
{
wandStream = Sound.CreateStream(5f); wandStreamInst = wandStream.Play(wandTipPrev);
}
if (wandModel == null)
{
wandModel = Model.FromFile("Wand.glb", Shader.UI);
}
if (wandFollow == null)
{
wandFollow = new LinePoint[10]; for (int i = 0; i < wandFollow.Length; i += 1)
{
wandFollow[i] = new LinePoint(Vec3.Zero, new Color(1, 1, 1, i / (float)wandFollow.Length), (i / (float)wandFollow.Length) * 0.01f + 0.001f);
}
}
UI.HandleBegin("wand", ref wandPose, wandModel.Bounds);
wandModel.Draw(Matrix.Identity);
UI.HandleEnd();
Vec3 wandTip = wandPose.ToMatrix() * (wandModel.Bounds.center + wandModel.Bounds.dimensions.y * 0.5f * Vec3.Up);
Vec3 wandVel = (wandTip - wandTipPrev) * Time.Elapsedf;
float wandSpeed = wandVel.Magnitude * 100;
int count = Math.Max(0, (int)(0.1f * 48000) - (wandStream.TotalSamples - wandStream.CursorSamples));
if (wandSamples.Length < count)
{
wandSamples = new float[count];
}
for (int i = 0; i < count; i++)
{
wandIntensity = Math.Min(1, SKMath.Lerp(wandIntensity, wandSpeed, 0.001f));
wandTime += (1 / 48000.0) * (30000 * wandIntensity + 2000);
wandSamples[i] = (float)Math.Sin(wandTime) * wandIntensity;
}
wandStreamInst.Position = wandTip;
wandStream.WriteSamples(wandSamples, count);
for (int i = 0; i < wandFollow.Length - 1; i++)
{
wandFollow[i].pt = wandFollow[i + 1].pt;
}
wandFollow[wandFollow.Length - 1].pt = wandTip;
Lines.Add(wandFollow);
wandTipPrev = wandTip;
}
void StepMenu(Hand hand)
{
// Animate the menu a bit
float time = (Time.Elapsedf * 24);
menuPose.position = Vec3.Lerp(menuPose.position, destPose.position, time);
menuPose.orientation = Quat.Slerp(menuPose.orientation, destPose.orientation, time);
activation = SKMath.Lerp(activation, 1, time);
// Pre-calculate some circle traversal values
HandRadialLayer layer = layers[activeLayer];
int count = layer.items.Length;
float step = 360 / count;
float halfStep = step / 2;
// Push the Menu's pose onto the stack, so we can draw, and work
// in local space.
Hierarchy.Push(menuPose.ToMatrix(activation));
// Calculate the status of the menu!
Vec3 tipWorld = hand[FingerId.Index, JointId.Tip].position;
Vec3 tipLocal = Hierarchy.ToLocal(tipWorld);
float magSq = tipLocal.MagnitudeSq;
bool onMenu = tipLocal.z > -0.02f && tipLocal.z < 0.02f;
bool focused = onMenu && magSq > minDist * minDist;
bool selected = onMenu && magSq > midDist * midDist;
bool cancel = magSq > maxDist * maxDist;
// Find where our finger is pointing to, and draw that
float fingerAngle = (float)Math.Atan2(tipLocal.y, tipLocal.x) * Units.rad2deg - (layer.startAngle + angleOffset);
while (fingerAngle < 0)
{
fingerAngle += 360;
}
int angleId = (int)(fingerAngle / step);
Lines.Add(Vec3.Zero, new Vec3(tipLocal.x, tipLocal.y, 0), Color.White * 0.5f, 0.001f);
// Draw the menu inner and outer circles
Lines.Add(circle);
Lines.Add(innerCircle);
// Now draw each of the menu items!
for (int i = 0; i < count; i++)
{
float currAngle = i * step + layer.startAngle + angleOffset;
bool highlightText = focused && angleId == i;
bool highlightLine = highlightText || (focused && (angleId + 1) % count == i);
Vec3 dir = Vec3.AngleXY(currAngle);
Lines.Add(dir * minDist, dir * maxDist, highlightLine ? Color.White : Color.White * 0.5f, highlightLine?0.002f:0.001f);
Text.Add(layer.items[i].name, Matrix.TRS(Vec3.AngleXY(currAngle + halfStep) * midDist, Quat.FromAngles(0, 0, currAngle + halfStep - 90), highlightText?1.2f:1), TextAlign.XCenter | TextAlign.YBottom);
}
// Done with local work
Hierarchy.Pop();
// Execute any actions that were discovered
// But not if we're still in the process of animating, interaction values
// could be pretty incorrect when we're still lerping around.
if (activation < 0.95f)
{
return;
}
if (selected)
{
SelectItem(layer.items[angleId], tipWorld, (angleId + 0.5f) * step);
}
if (cancel)
{
Close();
}
}