private void AddVertex(ref LinePointInfo info, ref Vector3 thicknessDirection, float uCoord, int vertexIndex, VertexPositionColorTextureAxis[] vertices, float thicknessFactor = 1)
{
vertices[vertexIndex].Color = info.Color;
vertices[vertexIndex].TexCoord = new Vector2(uCoord, 1) * this.textureTiling;
vertices[vertexIndex + 1].Color = info.Color;
vertices[vertexIndex + 1].TexCoord = new Vector2(uCoord, 0) * this.textureTiling;
float halfThickness = info.Thickness * 0.5f;
halfThickness *= this.is2DMode ? -thicknessFactor : thicknessFactor;
if (this.IsCameraAligned)
{
vertices[vertexIndex].Position = info.Position;
vertices[vertexIndex + 1].Position = info.Position;
vertices[vertexIndex].AxisSize = new Vector4(thicknessDirection, halfThickness);
vertices[vertexIndex + 1].AxisSize = new Vector4(thicknessDirection, -halfThickness);
}
else
{
var axisThickness = thicknessDirection * halfThickness;
vertices[vertexIndex].Position = info.Position + axisThickness;
vertices[vertexIndex + 1].Position = info.Position - axisThickness;
}
var halfThicknessAbs = Math.Abs(halfThickness);
var thicknessVector = new Vector3(halfThicknessAbs, halfThicknessAbs, 0);
this.boundingBox.Max = Vector3.Max(info.Position + thicknessVector, this.boundingBox.Max);
this.boundingBox.Min = Vector3.Min(info.Position - thicknessVector, this.boundingBox.Min);
}
/// <inheritdoc/>
protected override void RefreshMeshes()
{
if (this.bezierLinePoints == null || this.bezierLinePoints.Count < 2)
{
return;
}
this.linePoints.Clear();
var firstPoint = this.bezierLinePoints[0];
for (int i = 1; i < this.bezierLinePoints.Count; i++)
{
var secondPoint = this.bezierLinePoints[i];
int r = i > 1 ? 1 : 0;
for (; r <= this.resolution; r++)
{
var t = (float)r / this.resolution;
var point = new LinePointInfo()
{
Color = Color.Lerp(ref firstPoint.Color, ref secondPoint.Color, t),
Thickness = MathHelper.Lerp(firstPoint.Thickness, secondPoint.Thickness, t)
};
if (this.bezierType == BezierTypes.Quadratic)
{
var p1 = secondPoint.Position + secondPoint.InboundHandle;
point.Position = this.CalculateQuadraticPoint(t, ref firstPoint.Position, ref p1, ref secondPoint.Position);
}
else if (this.bezierType == BezierTypes.Cubic)
{
var p1 = firstPoint.Position + firstPoint.OutboundHandle;
var p2 = secondPoint.Position + secondPoint.InboundHandle;
point.Position = this.CalculateCubicPoint(t, ref firstPoint.Position, ref p1, ref p2, ref secondPoint.Position);
}
this.linePoints.Add(point);
}
firstPoint = secondPoint;
}
base.RefreshMeshes();
}
/// <summary>
/// Updates last point added with the previous point
/// </summary>
/// <param name="point">Last point added to the list</param>
public void CloneLastPoint(LinePointInfo point)
{
if (this.linePoints.Count == 1)
{
var prev = this.linePoints.ElementAt(0);
point.Color = Color.White;
point.Thickness = 1;
}
else
{
var prev = this.linePoints.ElementAt(this.linePoints.Count - 2);
point.Color = prev.Color;
point.Position = prev.Position;
point.Thickness = prev.Thickness;
}
this.RefreshMeshes();
}
/// <summary>
/// Refresh mesh when a value from the list has changed
/// </summary>
/// <param name="point">point</param>
public void Refresh(LinePointInfo point)
{
this.RefreshMeshes();
}