protected override void BuildMeshComponents()
{
#region DoubleCollider
if (useDoubleCollider)
{
cachedVertsLeft = new List <Vector2>();
cachedVertsRight = new List <Vector2>();
}
#endregion
List <Vector3> verticesList = new List <Vector3>();
List <int> trianglesList = new List <int>();
Vector2 center = new Vector2();
for (int i = 0; i < lineVerts.Length; i++)
{
center += lineVerts[i];
}
center /= lineVerts.Length;
for (int i = 0; i < lineVerts.Length; i++)
{
lineVerts[i] -= center;
}
int currentVertIndex = 0;
int currentTriIndex = 0;
//add first two vertices
float angle = Mathf.Atan2(lineVerts[1].y - lineVerts[0].y, lineVerts[1].x - lineVerts[0].x);
float oldAngle, angleDiff;
Vector2 p1 = new Vector2(Mathf.Cos(angle + deg90), Mathf.Sin(angle + deg90)) * lineWidth;
Vector2 p2 = new Vector2(Mathf.Cos(angle - deg90), Mathf.Sin(angle - deg90)) * lineWidth;
if (p1 != p2)
{
verticesList.Add(lineVerts[currentVertIndex] + p1);
verticesList.Add(lineVerts[currentVertIndex] + p2);
#region DoubleCollider
if (useDoubleCollider)
{
cachedVertsLeft.Add(verticesList[verticesList.Count - 2]);
cachedVertsRight.Add(verticesList[verticesList.Count - 1]);
}
#endregion
}
else
{
verticesList.Add(lineVerts[currentVertIndex]);
#region DoubleCollider
if (useDoubleCollider)
{
cachedVertsLeft.Add(verticesList[verticesList.Count - 1]);
cachedVertsRight.Add(verticesList[verticesList.Count - 1]);
}
#endregion
}
oldAngle = angle;
currentVertIndex++;
// add middle vertices
for (int i = 0; i < lineVerts.Length - 2; i++, currentVertIndex++)
{
angle = Mathf.Atan2(lineVerts[currentVertIndex + 1].y - lineVerts[currentVertIndex].y, lineVerts[currentVertIndex + 1].x - lineVerts[currentVertIndex].x);
angleDiff = oldAngle + MeshHelper.AngleDifference(oldAngle, angle) * 0.5f;
p1 = new Vector2(Mathf.Cos(angleDiff + deg90), Mathf.Sin(angleDiff + deg90)) * lineWidth;
p2 = new Vector2(Mathf.Cos(angleDiff - deg90), Mathf.Sin(angleDiff - deg90)) * lineWidth;
if (p1 != p2)
{
verticesList.Add(lineVerts[currentVertIndex] + p1);
verticesList.Add(lineVerts[currentVertIndex] + p2);
trianglesList.Add(currentTriIndex + 0);
trianglesList.Add(currentTriIndex + 3);
trianglesList.Add(currentTriIndex + 1);
trianglesList.Add(currentTriIndex + 3);
trianglesList.Add(currentTriIndex + 0);
trianglesList.Add(currentTriIndex + 2);
currentTriIndex += 2;
}
else
{
verticesList.Add(lineVerts[currentTriIndex] + p1);
if (verticesList[verticesList.Count - 1] != verticesList[verticesList.Count - 2])
{
trianglesList.Add(currentTriIndex + 0);
trianglesList.Add(currentTriIndex + 3);
trianglesList.Add(currentTriIndex + 1);
currentTriIndex++;
}
}
#region DoubleCollider
if (useDoubleCollider)
{
cachedVertsLeft.Add(verticesList[verticesList.Count - 2]);
cachedVertsRight.Add(verticesList[verticesList.Count - 1]);
}
#endregion
oldAngle = angle;
}
//add last two vertices
if (lineVerts[0] != lineVerts[currentVertIndex])
{
angle = Mathf.Atan2(lineVerts[currentVertIndex].y - lineVerts[currentVertIndex - 1].y, lineVerts[currentVertIndex].x - lineVerts[currentVertIndex - 1].x);
p1 = new Vector2(Mathf.Cos(angle + deg90), Mathf.Sin(angle + deg90)) * lineWidth;
p2 = new Vector2(Mathf.Cos(angle - deg90), Mathf.Sin(angle - deg90)) * lineWidth;
if (p1 != p2)
{
verticesList.Add(lineVerts[currentVertIndex] + p1);
verticesList.Add(lineVerts[currentVertIndex] + p2);
trianglesList.Add(currentTriIndex + 0);
trianglesList.Add(currentTriIndex + 3);
trianglesList.Add(currentTriIndex + 1);
trianglesList.Add(currentTriIndex + 3);
trianglesList.Add(currentTriIndex + 0);
trianglesList.Add(currentTriIndex + 2);
}
else
{
//make LineMesh loop
if (verticesList[verticesList.Count - 1] != verticesList[verticesList.Count - 2])
{
verticesList.Add(lineVerts[currentTriIndex] + p1);
trianglesList.Add(currentTriIndex + 0);
trianglesList.Add(currentTriIndex + 3);
trianglesList.Add(currentTriIndex + 1);
}
}
#region DoubleCollider
if (useDoubleCollider)
{
cachedVertsLeft.Add(verticesList[verticesList.Count - 2]);
cachedVertsRight.Add(verticesList[verticesList.Count - 1]);
}
#endregion
}
else
{
oldAngle = Mathf.Atan2(
lineVerts[0].y - lineVerts[currentVertIndex].y,
lineVerts[0].x - lineVerts[currentVertIndex].x);
angle = Mathf.Atan2(
lineVerts[1].y - lineVerts[0].y,
lineVerts[1].x - lineVerts[0].x);
angleDiff = oldAngle + MeshHelper.AngleDifference(oldAngle, angle) * 0.5f - deg90;
p1 = new Vector2(Mathf.Cos(angleDiff - deg90), Mathf.Sin(angleDiff - deg90)) * lineWidth;
p2 = new Vector2(Mathf.Cos(angleDiff + deg90), Mathf.Sin(angleDiff + deg90)) * lineWidth;
verticesList[0] = lineVerts[currentVertIndex] + p1;
verticesList[1] = lineVerts[currentVertIndex] + p2;
#region DoubleCollider
if (useDoubleCollider)
{
cachedVertsLeft[0] = verticesList[0];
cachedVertsRight[0] = verticesList[1];
cachedVertsLeft.Add(verticesList[verticesList.Count - 2]);
cachedVertsRight.Add(verticesList[verticesList.Count - 1]);
}
#endregion
trianglesList.Add(0);
trianglesList.Add(verticesList.Count - 1);
trianglesList.Add(1);
trianglesList.Add(verticesList.Count - 1);
trianglesList.Add(0);
trianglesList.Add(verticesList.Count - 2);
}
Vertices = verticesList.ToArray();
Triangles = trianglesList.ToArray();
UVs = MeshHelper.UVUnwrap(Vertices);
}
