public static GORoadSegment FindTheLongestStreightSegment(List <Vector3> line, float maxAngle)
{
Vector3 pointA = Vector3.zero;
Vector3 pointB = Vector3.zero;
float d = 0;
float angle = 0;
GORoadSegment spare = null;
for (int i = 1; i < line.Count; i++)
{
if (i == 1)
{
pointA = line [0];
pointB = line [1];
d = Vector3.Distance(pointA, pointB);
angle = AngleBetweenVector2XZ(pointA, pointB);
continue;
}
Vector3 stepA = line [i - 1];
Vector3 stepB = line [i];
float stepD = Vector3.Distance(stepA, stepB);
float stepAngle = AngleBetweenVector2XZ(stepA, stepB);
float angleDiff = Mathf.Abs(stepAngle - angle);
if (spare != null && Mathf.Abs(stepAngle - spare.angle) <= maxAngle)
{
stepD += spare.distance;
stepA = spare.pointA;
spare = null;
}
if (angleDiff > maxAngle) //angle is too wide
{
if (stepD > d) //Reset segment
{
pointA = stepA;
pointB = stepB;
d = stepD;
angle = stepAngle;
// Debug.Log ("Reset segment");
}
else //Save this segment for next step, just in case
// Debug.Log ("Save segment");
{
GORoadSegment s = new GORoadSegment();
s.pointA = stepA;
s.pointB = stepB;
s.angle = stepAngle;
s.distance = stepD;
spare = s;
}
}
else //angle is ok, add the current segment
{
pointB = stepB;
d += stepD;
// Debug.Log ("Add segment "+angle+ " " + stepAngle);
}
}
GORoadSegment segment = new GORoadSegment();
segment.pointA = pointA;
segment.pointB = pointB;
segment.angle = angle;
segment.distance = d;
return(segment);
}
public IEnumerator Build(string name)
{
GOFeatureBehaviour road = transform.parent.GetComponent <GOFeatureBehaviour> ();
GORoadSegment segment = GORoadSegment.FindTheLongestStreightSegment(road.goFeature.convertedGeometry, 0);
// segment.DebugSegment ();
transform.localPosition = segment.findMiddlePoint(0.01f); //LineCenter (road._verts);
transform.localScale = Vector3.one * 3;
TextMesh textMesh = gameObject.AddComponent <TextMesh> ();
textMesh.text = name;
textMesh.color = new Color(61 / 255.0f, 61 / 255.0f, 83 / 255f);
textMesh.anchor = TextAnchor.MiddleCenter;
textMesh.alignment = TextAlignment.Center;
textMesh.fontStyle = FontStyle.Bold;
textMesh.fontSize = 15;
float minimumFontSize = 12;
textLenght = textMesh.GetComponent <Renderer>().bounds.size.x;
//Find correct size
for (int i = textMesh.fontSize; i >= minimumFontSize - 1; i--)
{
textMesh.fontSize = i;
float tl = textMesh.GetComponent <Renderer>().bounds.size.x;
if (segment.distance >= tl)
{
break;
}
if (i == minimumFontSize - 1)
{
GameObject.Destroy(this.gameObject);
yield break;
}
}
var rotation = transform.eulerAngles;
rotation.x = 90;
Vector3 targetDir = segment.direction();
if (targetDir.Equals(Vector3.zero))
{
rotation.y = 90;
}
else
{
Quaternion finalRotation = Quaternion.LookRotation(targetDir);
rotation.y = finalRotation.eulerAngles.y + 90;
rotation.y = (rotation.y % 360 + 360) % 360;
if (rotation.y > 90 && rotation.y < 180)
{
rotation.y -= 180;
}
else if (rotation.y > 0 && rotation.y < 90)
{
rotation.y += 180;
}
}
rot = rotation;
transform.eulerAngles = rotation;
yield return(null);
}
