/// <summary>
/// mirror a curve, do return new curve Clone
/// </summary>
public static Curve2 Mirror(this Curve2 curve)
{
var mir = curve.Clone();
Mirror(mir, 0.01f);
return(mir);
}
public static void Mirror(this Curve2 curve, float mirrorError, Curve2 origin = null)
{
var axis = 0.5f;//mirrorAxis
var append = new List <Key2>();
foreach (var k in curve)
{
if (Mathf.Abs(k.time - axis) < mirrorError)//points on mirror axis
{
if (origin != null)
{
var key = origin[curve.IndexOf(k)];
key.SetVector(new Vector2(axis, k.value));
//key.outMode = key.inMode;
//key.outMode = KeyMode.None;
}
k.SetVector(new Vector2(axis, k.value));
k.outTan = k.inTan.MirrorX(axis);
k.outMode = k.inMode;
}
else
{
var n = k.Clone();
ComTool.Swap(ref n.inTan, ref n.outTan);//先把切线翻转
n.inTan = n.inTan.MirrorX(n.time);
n.outTan = n.outTan.MirrorX(n.time);
n.SetVector(n.vector.MirrorX(axis)); // 然后SetVector一起拉过去
ComTool.Swap(ref n.inMode, ref n.outMode);
append.Add(n);
}
}
curve.keys.AddRange(append);
curve.Sort();
}
static Curve2()
{
t0v1_t1v1 = new Curve2(Vector2.up, Vector2.right + Vector2.up);
t0v0_t05v1_t1v0 = new Curve2(Vector2.zero, Vector2.right);
t0v0_t05v1_t1v0.InsertKey(new Key2(0.5f, 1f));
t0v0_t05v1_t1v0.time1D = false;
t0v0_t1v0 = new Curve2(Vector2.zero, Vector2.right);
}
int RemoveAtTime(Curve2 curve, float time)
{
int c = 0;
if (curve.keys != null && curve.keys.Count > 0)
{
c += RemoveTimeOf(curve, time);
}
return(c);
}
public Curve2 Clone()
{
var n = new Curve2();
var nKeys = new List <Key2>();
foreach (var k in keys)
{
nKeys.Add(k.Clone());
}
n.keys = nKeys;
n.time1D = time1D;
return(n);
}
// return remove count
int RemoveTimeOf(Curve2 curve, float time)
{
int c = 0;
var t = new List <Key2>(curve);
foreach (var key in t)
{
if (MathTool.Approx(key.time, time, 3))
{
curve.Remove(key); c++;
}
}
return(c);
}
/// <summary>
/// return new Curve contain keys before/include "time", not return new curve Clone
/// </summary>
public static Curve2 Before(this Curve2 curve, float time)
{
var list = new List <Key2>();
foreach (var k in curve.keys)
{
if (k.time > time)
{
break;
}
list.Add(k);
}
curve.keys = list;
return(curve);
}
public bool IsMirror(Curve2 c)
{
if (c == null)
{
return(false);
}
if (Count != c.Count)
{
return(false);
}
for (int i = 0; i < Count; i++)
{
if (!keys[i].vector.f.IsMirrorX(c.keys[i].vector) ||
!keys[i].inTan.IsMirrorX(c.keys[i].inTan) ||
!keys[i].outTan.IsMirrorX(c.keys[i].outTan) ||
keys[i].inMode != c.keys[i].inMode ||
keys[i].outMode != c.keys[i].outMode)
{
return(false);
}
}
return(true);
}
public CurveXYZ()
{
x = new Curve2();
y = new Curve2();
z = new Curve2();
}