static MaterialPropertyBlock GetMaterialPropertyBlock(CircleInfo circleInfo)
{
if (_materialPropertyBlock == null)
{
_materialPropertyBlock = new MaterialPropertyBlock();
}
_materialPropertyBlock.SetColor(FillColorParam, circleInfo.fillColor);
_materialPropertyBlock.SetFloat(AASmoothingParam, antiAliasingSmoothing);
if (circleInfo.bordered)
{
_materialPropertyBlock.SetColor(BorderColorParam, circleInfo.borderColor);
var borderWidthNormalized = circleInfo.borderWidth / circleInfo.radius;
_materialPropertyBlock.SetFloat(FillWidthParam, 1.0f - borderWidthNormalized);
}
if (circleInfo.isSector)
{
setSectorAngles(_materialPropertyBlock, circleInfo.sectorInitialAngleInDegrees, circleInfo.sectorArcLengthInDegrees);
}
return(_materialPropertyBlock);
}
public static void Draw(CircleInfo circleInfo)
{
var mesh = GetCircleMesh();
var materialPropertyBlock = GetMaterialPropertyBlock(circleInfo);
var matrix = GetTRSMatrix(circleInfo);
var material = GetMaterial(circleInfo);
Graphics.DrawMesh(mesh, matrix, material, 0, null, 0, materialPropertyBlock);
}
static Material GetMaterial(CircleInfo circleInfo)
{
var materialIndex = 0;
if (circleInfo.bordered)
{
materialIndex = 1;
}
if (circleInfo.isSector)
{
materialIndex = 2;
}
if (circleInfo.bordered && circleInfo.isSector)
{
materialIndex = 3;
}
if (_materials[materialIndex] != null)
{
return(_materials[materialIndex]);
}
var mat = new Material(Shader.Find("Hidden/Shapes/Circle"));
if (SystemInfo.supportsInstancing)
{
mat.enableInstancing = true;
}
var keywords = _materialKeywords[materialIndex];
if (keywords != null)
{
mat.shaderKeywords = keywords;
}
_materials[materialIndex] = mat;
return(mat);
}
static Matrix4x4 GetTRSMatrix(CircleInfo circleInfo)
{
var rotation = Quaternion.LookRotation(circleInfo.forward);
return(Matrix4x4.TRS(circleInfo.center, rotation, new Vector3(circleInfo.radius, circleInfo.radius, 1f)));
}
