SFML 2 libRocket Renderer

I know libRocket is quite popular, and since I use it in my engine, along with SFML 2 most recent (or almost) graphics API, I decided to share a snippet that will be able to render your documents using sf::VertexArray.

The below snippet will do the job of rendering the textured geometry of the whole rocket document, assuming you already made a few things:
 - load textures as sf::Texture in the appropriate place
 - define target as a valid SFML sf::RenderTarget, before calling Render on the context
 - return NULL in the compile geometry attempt, so the "immediate" mode is used.

Don't worry as later I will give you a lot more, if you need it now or just need help with libRocket, feel free to contact me!

	void RocketRenderInterface::RenderGeometry(Rocket::Core::Vertex* vertices, int num_vertices, int* indices, int num_indices, const Rocket::Core::TextureHandle Image, const Rocket::Core::Vector2f& translation)
	{
	if(!target)return;
	target->SetView(target->GetDefaultView());
	target->PushGLStates();
	sf::VertexArray v(sf::Triangles, num_indices);
	for(int j = 0; j < num_indices; j++){ //iterate indices
	int i = indices[j]; //i is the vertex position.
	v[j].Position = sf::Vector2f(vertices[i].position.x, vertices[i].position.y);
	v[j].Color = sf::Color(vertices[i].colour.red,vertices[i].colour.green,vertices[i].colour.blue, vertices[i].colour.alpha);
	if(Image){
	v[j].TexCoords = sf::Vector2f(vertices[i].tex_coord.x*((sf::Texture*)Image)->GetWidth(), vertices[i].tex_coord.y*((sf::Texture*)Image)->GetHeight());
	}
	}
	states->BlendMode = sf::BlendAlpha;
	states->Texture = (sf::Texture*)Image;
	states->Transform = sf::Transform::Identity;
	states->Transform.Translate(translation.x, translation.y);
	target->Draw(v, *states);
	target->PopGLStates();
	};

view raw gistfile1.cpp hosted with ❤ by GitHub