private static PointList CreateXZRoundRectangle(float xSize, float zSize, float radius, int cornerSides, AxisSide axisSide, float axisCoord)
{
PointList result = new PointList();
float x = xSize * 0.5f - radius;
float z = zSize * 0.5f - radius;
float PI_2 = Mathf.PI * 0.5f;
float indexToAngle = PI_2 / cornerSides;
if (axisSide == AxisSide.Negative)
{
// Corner 1
for (int i = 0; i < cornerSides + 1; i++)
{
float angle = PI_2 + i * indexToAngle;
result.Add(-x + radius * Mathf.Cos(angle), axisCoord, z + radius * Mathf.Sin(angle));
}
// Corner 2
for (int i = 0; i < cornerSides + 1; i++)
{
float angle = Mathf.PI + i * indexToAngle;
result.Add(-x + radius * Mathf.Cos(angle), axisCoord, -z + radius * Mathf.Sin(angle));
}
// Corner 3
for (int i = 0; i < cornerSides + 1; i++)
{
float angle = -PI_2 + i * indexToAngle;
result.Add(x + radius * Mathf.Cos(angle), axisCoord, -z + radius * Mathf.Sin(angle));
}
// Corner 4
for (int i = 0; i < cornerSides + 1; i++)
{
float angle = i * indexToAngle;
result.Add(x + radius * Mathf.Cos(angle), axisCoord, z + radius * Mathf.Sin(angle));
}
}
else
{
// Corner 1
for (int i = 0; i < cornerSides + 1; i++)
{
float angle = Mathf.PI - i * indexToAngle;
result.Add(-x + radius * Mathf.Cos(angle), axisCoord, z + radius * Mathf.Sin(angle));
}
// Corner 4
for (int i = 0; i < cornerSides + 1; i++)
{
float angle = PI_2 - i * indexToAngle;
result.Add(x + radius * Mathf.Cos(angle), axisCoord, z + radius * Mathf.Sin(angle));
}
// Corner 3
for (int i = 0; i < cornerSides + 1; i++)
{
float angle = -i * indexToAngle;
result.Add(x + radius * Mathf.Cos(angle), axisCoord, -z + radius * Mathf.Sin(angle));
}
// Corner 2
for (int i = 0; i < cornerSides + 1; i++)
{
float angle = -PI_2 - i * indexToAngle;
result.Add(-x + radius * Mathf.Cos(angle), axisCoord, -z + radius * Mathf.Sin(angle));
}
}
return(result);
}
