void OnPopulateMeshPoints(VertexHelper vh)
{
vh.Clear();
Color32 c32 = color;
foreach (var p in points)
{
vh.AddQuad(new Vector3(p.x - 1, p.y + 1, 0), new Vector3(p.x + 1, p.y + 1, 0), new Vector3(p.x - 1, p.y - 1, 0), new Vector3(p.x + 1, p.y - 1, 0), c32);
}
// material.color = color;
canvasRenderer.SetMaterial(material, Texture2D.whiteTexture);
}
/// <summary>
/// 折れ線を描く.(交点を面取りする.)
/// </summary>
void OnPopulateMeshLineStripTruncated(VertexHelper vh)
{
vh.Clear();
var pointsLength = points.Length;
if (pointsLength == 0)
{
return;
}
else if (pointsLength == 1)
{ // draw point.
OnPopulateMeshPoints(vh);
return;
}
Color32 c32 = color;
// for (var idx = 0; idx < pointsLength; ++idx)
// {
// var pos = points[idx]; // current position.
// Debug.Log("pos[" + idx + "]:" + pos);
// }
var prevPos = points[0]; // prev position.
var currPos = points[1]; // current position.
var pcLine = currPos - prevPos;
var pcLineVecRot90 = pcLine.GetRot90Deg();
pcLineVecRot90.Normalize();
pcLineVecRot90 = pcLineVecRot90 * width * 0.5f;
var prevT = prevPos + pcLineVecRot90;
var prevB = prevPos - pcLineVecRot90;
var currT = currPos + pcLineVecRot90;
var currB = currPos - pcLineVecRot90;
for (var idx = 2; idx < pointsLength; ++idx)
{
var nextPos = points[idx]; // current position.
var cnLine = nextPos - currPos;
var cnLineVecRot90 = cnLine.GetRot90Deg();
cnLineVecRot90.Normalize();
cnLineVecRot90 = cnLineVecRot90 * width * 0.5f;
var currT2 = currPos + cnLineVecRot90;
var currB2 = currPos - cnLineVecRot90;
var nextT = nextPos + cnLineVecRot90;
var nextB = nextPos - cnLineVecRot90;
vh.AddQuad(prevT, currT, prevB, currB, c32);
var pcAim = Vector2Ex.GetAimRad(prevPos, currPos);
var cnAim = Vector2Ex.GetAimRad(currPos, nextPos);
if (pcAim < cnAim)
{
vh.AddTriangle(currPos, currB2, currB, c32);
}
else
{
vh.AddTriangle(currT, currT2, currPos, c32);
}
prevPos = currPos; // prev position.
currPos = nextPos; // points[idx] // current position.
pcLine = cnLine;
pcLineVecRot90 = cnLineVecRot90;
prevT = currT2;
prevB = currB2;
currT = nextT;
currB = nextB;
}
vh.AddQuad(prevT, currT, prevB, currB, c32);
canvasRenderer.SetMaterial(material, Texture2D.whiteTexture);
}
