static int EnsureCapacity(IntPtr L)
{
try
{
ToLua.CheckArgsCount(L, 2);
Spine.ExposedList <Spine.Animation> obj = (Spine.ExposedList <Spine.Animation>)ToLua.CheckObject <Spine.ExposedList <Spine.Animation> >(L, 1);
int arg0 = (int)LuaDLL.luaL_checknumber(L, 2);
obj.EnsureCapacity(arg0);
return(0);
}
catch (Exception e)
{
return(LuaDLL.toluaL_exception(L, e));
}
}
public ExposedList <int> Triangulate(ExposedList <float> verticesArray)
{
float[] items = verticesArray.Items;
int newSize = verticesArray.Count >> 1;
ExposedList <int> indicesArray = this.indicesArray;
indicesArray.Clear(true);
int[] indices = indicesArray.Resize(newSize).Items;
for (int i = 0; i < newSize; i++)
{
indices[i] = i;
}
ExposedList <bool> isConcaveArray = this.isConcaveArray;
bool[] flagArray = isConcaveArray.Resize(newSize).Items;
int index = 0;
int num4 = newSize;
while (index < num4)
{
flagArray[index] = IsConcave(index, newSize, items, indices);
index++;
}
ExposedList <int> triangles = this.triangles;
triangles.Clear(true);
triangles.EnsureCapacity(Math.Max(0, newSize - 2) << 2);
while (newSize > 3)
{
int num5 = newSize - 1;
int num6 = 0;
int num7 = 1;
Label_00B9:
if (!flagArray[num6])
{
int num8 = indices[num5] << 1;
int num9 = indices[num6] << 1;
int num10 = indices[num7] << 1;
float num11 = items[num8];
float num12 = items[num8 + 1];
float num13 = items[num9];
float num14 = items[num9 + 1];
float num15 = items[num10];
float num16 = items[num10 + 1];
for (int j = (num7 + 1) % newSize; j != num5; j = (j + 1) % newSize)
{
if (flagArray[j])
{
int num18 = indices[j] << 1;
float num19 = items[num18];
float num20 = items[num18 + 1];
if ((PositiveArea(num15, num16, num11, num12, num19, num20) && PositiveArea(num11, num12, num13, num14, num19, num20)) && PositiveArea(num13, num14, num15, num16, num19, num20))
{
goto Label_0194;
}
}
}
goto Label_01D2;
}
Label_0194:
if (num7 == 0)
{
do
{
if (!flagArray[num6])
{
break;
}
num6--;
}while (num6 > 0);
}
else
{
num5 = num6;
num6 = num7;
num7 = (num7 + 1) % newSize;
goto Label_00B9;
}
Label_01D2:
triangles.Add(indices[((newSize + num6) - 1) % newSize]);
triangles.Add(indices[num6]);
triangles.Add(indices[(num6 + 1) % newSize]);
indicesArray.RemoveAt(num6);
isConcaveArray.RemoveAt(num6);
newSize--;
int num21 = ((newSize + num6) - 1) % newSize;
int num22 = (num6 != newSize) ? num6 : 0;
flagArray[num21] = IsConcave(num21, newSize, items, indices);
flagArray[num22] = IsConcave(num22, newSize, items, indices);
}
if (newSize == 3)
{
triangles.Add(indices[2]);
triangles.Add(indices[0]);
triangles.Add(indices[1]);
}
return(triangles);
}
public ExposedList <int> Triangulate(ExposedList <float> verticesArray)
{
float[] items = verticesArray.Items;
int num = verticesArray.Count >> 1;
ExposedList <int> exposedList = indicesArray;
exposedList.Clear();
int[] items2 = exposedList.Resize(num).Items;
for (int i = 0; i < num; i++)
{
items2[i] = i;
}
ExposedList <bool> exposedList2 = isConcaveArray;
bool[] items3 = exposedList2.Resize(num).Items;
int j = 0;
for (int num2 = num; j < num2; j++)
{
items3[j] = IsConcave(j, num, items, items2);
}
ExposedList <int> exposedList3 = triangles;
exposedList3.Clear();
exposedList3.EnsureCapacity(Math.Max(0, num - 2) << 2);
while (num > 3)
{
int num3 = num - 1;
int num4 = 0;
int num5 = 1;
while (true)
{
if (!items3[num4])
{
int num6 = items2[num3] << 1;
int num7 = items2[num4] << 1;
int num8 = items2[num5] << 1;
float num9 = items[num6];
float num10 = items[num6 + 1];
float num11 = items[num7];
float num12 = items[num7 + 1];
float num13 = items[num8];
float num14 = items[num8 + 1];
for (int num15 = (num5 + 1) % num; num15 != num3; num15 = (num15 + 1) % num)
{
if (!items3[num15])
{
continue;
}
int num16 = items2[num15] << 1;
float p3x = items[num16];
float p3y = items[num16 + 1];
if (!PositiveArea(num13, num14, num9, num10, p3x, p3y) || !PositiveArea(num9, num10, num11, num12, p3x, p3y) || !PositiveArea(num11, num12, num13, num14, p3x, p3y))
{
continue;
}
goto IL_0194;
}
break;
}
goto IL_0194;
IL_0194:
if (num5 == 0)
{
while (items3[num4])
{
num4--;
if (num4 <= 0)
{
break;
}
}
break;
}
num3 = num4;
num4 = num5;
num5 = (num5 + 1) % num;
}
exposedList3.Add(items2[(num + num4 - 1) % num]);
exposedList3.Add(items2[num4]);
exposedList3.Add(items2[(num4 + 1) % num]);
exposedList.RemoveAt(num4);
exposedList2.RemoveAt(num4);
num--;
int num17 = (num + num4 - 1) % num;
int num18 = (num4 != num) ? num4 : 0;
items3[num17] = IsConcave(num17, num, items, items2);
items3[num18] = IsConcave(num18, num, items, items2);
}
if (num == 3)
{
exposedList3.Add(items2[2]);
exposedList3.Add(items2[0]);
exposedList3.Add(items2[1]);
}
return(exposedList3);
}
