227 lines
6.1 KiB
C#
227 lines
6.1 KiB
C#
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using System;
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namespace UnityEngine.Timeline
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{
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struct DiscreteTime : IComparable
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{
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const double k_Tick = 1e-12;
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public static readonly DiscreteTime kMaxTime = new DiscreteTime(Int64.MaxValue);
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readonly Int64 m_DiscreteTime;
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public static double tickValue { get { return k_Tick; } }
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public DiscreteTime(DiscreteTime time)
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{
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m_DiscreteTime = time.m_DiscreteTime;
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}
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DiscreteTime(Int64 time)
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{
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m_DiscreteTime = time;
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}
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public DiscreteTime(double time)
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{
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m_DiscreteTime = DoubleToDiscreteTime(time);
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}
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public DiscreteTime(float time)
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{
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m_DiscreteTime = FloatToDiscreteTime(time);
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}
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public DiscreteTime(int time)
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{
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m_DiscreteTime = IntToDiscreteTime(time);
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}
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public DiscreteTime(int frame, double fps)
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{
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m_DiscreteTime = DoubleToDiscreteTime(frame * fps);
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}
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public DiscreteTime OneTickBefore()
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{
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return new DiscreteTime(m_DiscreteTime - 1);
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}
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public DiscreteTime OneTickAfter()
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{
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return new DiscreteTime(m_DiscreteTime + 1);
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}
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public Int64 GetTick()
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{
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return m_DiscreteTime;
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}
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public static DiscreteTime FromTicks(Int64 ticks)
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{
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return new DiscreteTime(ticks);
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}
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public int CompareTo(object obj)
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{
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if (obj is DiscreteTime)
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return m_DiscreteTime.CompareTo(((DiscreteTime)obj).m_DiscreteTime);
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return 1;
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}
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public bool Equals(DiscreteTime other)
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{
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return m_DiscreteTime == other.m_DiscreteTime;
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}
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public override bool Equals(object obj)
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{
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if (obj is DiscreteTime)
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return Equals((DiscreteTime)obj);
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return false;
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}
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static Int64 DoubleToDiscreteTime(double time)
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{
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double number = (time / k_Tick) + 0.5;
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if (number < Int64.MaxValue && number > Int64.MinValue)
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return (Int64)number;
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throw new ArgumentOutOfRangeException("Time is over the discrete range.");
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}
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static Int64 FloatToDiscreteTime(float time)
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{
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float number = (time / (float)k_Tick) + 0.5f;
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if (number < Int64.MaxValue && number > Int64.MinValue)
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return (Int64)number;
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throw new ArgumentOutOfRangeException("Time is over the discrete range.");
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}
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static Int64 IntToDiscreteTime(int time)
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{
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return DoubleToDiscreteTime(time);
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}
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static double ToDouble(Int64 time)
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{
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return time * k_Tick;
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}
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static float ToFloat(Int64 time)
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{
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return (float)ToDouble(time);
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}
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public static explicit operator double(DiscreteTime b)
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{
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return ToDouble(b.m_DiscreteTime);
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}
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public static explicit operator float(DiscreteTime b)
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{
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return ToFloat(b.m_DiscreteTime);
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}
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public static explicit operator Int64(DiscreteTime b)
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{
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return b.m_DiscreteTime;
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}
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public static explicit operator DiscreteTime(double time)
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{
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return new DiscreteTime(time);
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}
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public static explicit operator DiscreteTime(float time)
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{
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return new DiscreteTime(time);
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}
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public static implicit operator DiscreteTime(Int32 time)
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{
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return new DiscreteTime(time);
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}
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public static explicit operator DiscreteTime(Int64 time)
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{
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return new DiscreteTime(time);
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}
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public static bool operator==(DiscreteTime lhs, DiscreteTime rhs)
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{
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return lhs.m_DiscreteTime == rhs.m_DiscreteTime;
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}
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public static bool operator!=(DiscreteTime lhs, DiscreteTime rhs)
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{
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return !(lhs == rhs);
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}
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public static bool operator>(DiscreteTime lhs, DiscreteTime rhs)
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{
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return lhs.m_DiscreteTime > rhs.m_DiscreteTime;
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}
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public static bool operator<(DiscreteTime lhs, DiscreteTime rhs)
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{
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return lhs.m_DiscreteTime < rhs.m_DiscreteTime;
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}
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public static bool operator<=(DiscreteTime lhs, DiscreteTime rhs)
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{
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return lhs.m_DiscreteTime <= rhs.m_DiscreteTime;
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}
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public static bool operator>=(DiscreteTime lhs, DiscreteTime rhs)
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{
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return lhs.m_DiscreteTime >= rhs.m_DiscreteTime;
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}
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public static DiscreteTime operator+(DiscreteTime lhs, DiscreteTime rhs)
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{
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return new DiscreteTime(lhs.m_DiscreteTime + rhs.m_DiscreteTime);
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}
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public static DiscreteTime operator-(DiscreteTime lhs, DiscreteTime rhs)
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{
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return new DiscreteTime(lhs.m_DiscreteTime - rhs.m_DiscreteTime);
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}
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public override string ToString()
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{
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return m_DiscreteTime.ToString();
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}
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public override int GetHashCode()
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{
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return m_DiscreteTime.GetHashCode();
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}
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public static DiscreteTime Min(DiscreteTime lhs, DiscreteTime rhs)
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{
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return new DiscreteTime(Math.Min(lhs.m_DiscreteTime, rhs.m_DiscreteTime));
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}
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public static DiscreteTime Max(DiscreteTime lhs, DiscreteTime rhs)
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{
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return new DiscreteTime(Math.Max(lhs.m_DiscreteTime, rhs.m_DiscreteTime));
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}
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public static double SnapToNearestTick(double time)
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{
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Int64 discreteTime = DoubleToDiscreteTime(time);
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return ToDouble(discreteTime);
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}
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public static float SnapToNearestTick(float time)
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{
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Int64 discreteTime = FloatToDiscreteTime(time);
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return ToFloat(discreteTime);
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}
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public static Int64 GetNearestTick(double time)
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{
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return DoubleToDiscreteTime(time);
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}
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}
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}
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