/// <summary>
/// 初始化匀速贝塞尔路径运动
/// </summary>
/// <param name="points">贝塞尔点(0:P1, 1:P1右控制点, 2:P2_左控制点, 3: P2)</param>
/// <param name="fullTime">完成曲线运动的期望总时间(ms)</param>
/// <param name="interval">精度</param>
/// <param name="UniformBezierRouteCallBack">匀速化贝塞尔点回调函数</param>
public BezierRoute(Point[] points, int fullTime, int interval, UniformBezierRouteCallBack uniformBezierRouteCallBack)
{
Start = false;
FullTime = fullTime;
Interval = interval;
CallBack = uniformBezierRouteCallBack;
timer = new Timer(interval);
timer.Elapsed += Timer_Elapsed;
this.points = points;
b3 = new Bezier_3();
length = b3.beze_length(points, 1);
for (int i = 0; i < points.Length && i < 4; i++)
{
switch (i)
{
case 0: P1 = points[0]; break;
case 1: P1_Control = points[1]; break;
case 2: P2_Control = points[2]; break;
case 3: P2 = points[3]; break;
default:
break;
}
}
}
private void timerHandlerThread()
{
int uniform = 0, ununiform = 1, timer = 3, beze_length = 4;
int way = uniform;
double length = 0;
if (way != timer)
{
TimeSpan ts2 = (DateTime.Now - new DateTime(1970, 1, 1, 0, 0, 0, 0)) - ts;
timeSigma = ts2.TotalMilliseconds;
}
if (way == beze_length)
{
length = b3.beze_length(p, 1);
}
double deltaTime = timeSigma - lastTime;
// Console.WriteLine(deltaTime);
lastTime = timeSigma;
if (timeSigma <= timeFull)
{
Point realPoint = new Point();
Point unrealPoint = new Point();
if (way == uniform)
{
// Uniform
double rt = b3.t2rt(p, timeSigma / timeFull);
realPoint = b3.b3_c(p, rt);
int deltaX = realPoint.X - lastX;
lastX = realPoint.X;
//Console.WriteLine((double)deltaX / deltaTime);
lock (this)
{
// x(Uniform)
g.DrawRectangle(pen, new Rectangle(realPoint.X - 1, p[0].Y - 1, 2, 2));
// y(Ease)
g.DrawRectangle(pen, new Rectangle(p[0].X - 1, realPoint.Y - 1, 2, 2));
// CurveMotion
g.DrawRectangle(pen, new Rectangle(realPoint.X - 2, realPoint.Y - 2, 4, 4));
}
}
else if (way == ununiform)
{
// Ununiform
unrealPoint = b3.b3_c(p, timeSigma / timeFull);
int deltaX = unrealPoint.X - lastX;
lastX = unrealPoint.X;
//Console.WriteLine((double)deltaX / deltaTime);
lock (this)
{
// x(Uniform)
g.DrawRectangle(pen, new Rectangle(unrealPoint.X - 1, p[0].Y - 1, 2, 2));
// y(Ease)
g.DrawRectangle(pen, new Rectangle(p[0].X - 1, unrealPoint.Y - 1, 2, 2));
// CurveMotion
g.DrawRectangle(pen, new Rectangle(unrealPoint.X - 2, unrealPoint.Y - 2, 4, 4));
}
}
else if (way == timer)
{
// Timer
timeSigma += timer1.Interval;
unrealPoint = b3.b3_c(p, timeSigma / timeFull);
lock (this)
{
// x(Uniform)
g.DrawRectangle(pen, new Rectangle(unrealPoint.X - 1, p[0].Y - 1, 2, 2));
// y(Ease)
g.DrawRectangle(pen, new Rectangle(p[0].X - 1, unrealPoint.Y - 1, 2, 2));
// CurveMotion
g.DrawRectangle(pen, new Rectangle(unrealPoint.X - 2, unrealPoint.Y - 2, 4, 4));
}
}
else if (way == beze_length)
{
lock (this)
{
// BeizeLength
double rt = b3.t2rt_by_baze_length(p, length * timeSigma / timeFull);
realPoint = b3.b3_c(p, rt);
// x(Uniform)
g.FillRectangle(new SolidBrush(pen.Color), new Rectangle(realPoint.X - 1, p[0].Y - 1, 2, 2));
// y(Ease)
g.FillRectangle(new SolidBrush(pen.Color), new Rectangle(p[0].X - 1, realPoint.Y - 1, 2, 2));
// CurveMotion
g.FillRectangle(new SolidBrush(pen.Color), new Rectangle(realPoint.X - 3, realPoint.Y - 3, 6, 6));
}
}
// Console.WriteLine("timeSigma = " + timeSigma + ", t = " + timeSigma / timeFull + ", rt = " + rt);
//double shiftRate = (realPoint.Y - p[0].Y) / (p[3].Y - p[0].Y); // 位移率，当前y轴（位移）量占始末点总位移量的矢量比例
//button1.BeginInvoke(new Action(() => button1.Left = (int)(easeX_Start + (easeX_End - easeX_Start) * shiftRate)));
// Console.WriteLine(button1.Left);
}
else
{
timeSigma = 0;
timer1.Enabled = false;
finish = true;
}
}
