void RenderHelper::DrawPolygon(const Polygon3 & polygon, bool closed)
{
int ptCount = polygon.pointCount;
if (ptCount >= 2)
{
vertexStream->Set(TYPE_FLOAT, 3, 0, polygon.GetPoints());
RenderManager::Instance()->SetRenderEffect(RenderManager::FLAT_COLOR);
RenderManager::Instance()->SetRenderData(renderDataObject);
RenderManager::Instance()->DrawArrays(PRIMITIVETYPE_LINESTRIP, 0, ptCount);
if (closed)
{
Vector3 line[2] = {Vector3(polygon.GetPoints()[0]), Vector3(polygon.GetPoints()[ptCount-1])};
vertexStream->Set(TYPE_FLOAT, 3, 0, line);
RenderManager::Instance()->DrawArrays(PRIMITIVETYPE_LINESTRIP, 0, 2);
}
}
}
void RenderHelper::FillPolygon(const Polygon3 & polygon)
{
int ptCount = polygon.pointCount;
if (ptCount >= 3)
{
vertexStream->Set(TYPE_FLOAT, 3, 0, polygon.GetPoints());
RenderManager::Instance()->SetRenderEffect(RenderManager::FLAT_COLOR);
RenderManager::Instance()->SetRenderData(renderDataObject);
RenderManager::Instance()->DrawArrays(PRIMITIVETYPE_TRIANGLEFAN, 0, ptCount);
}
}
void RenderHelper::DrawPolygonPoints(const Polygon3 & polygon)
{
int ptCount = polygon.pointCount;
if (ptCount >= 1)
{
#if defined (__DAVAENGINE_OPENGL__)
glPointSize(3.0f);
#endif
vertexStream->Set(TYPE_FLOAT, 3, 0, polygon.GetPoints());
RenderManager::Instance()->SetRenderEffect(RenderManager::FLAT_COLOR);
RenderManager::Instance()->SetRenderData(renderDataObject);
RenderManager::Instance()->DrawArrays(PRIMITIVETYPE_POINTLIST, 0, ptCount);
#if defined (__DAVAENGINE_OPENGL__)
glPointSize(1.0f);
#endif
}
}
