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#pragma once

namespace Display
{
	using Effect::Parameter;

	/// a mesh instance with a custom shader and shader parameters
	struct BasicMesh : InstanceBase
	{
	private:
		Shader shader;
		Linker linker;
		DirectX::PMesh mesh;

	public:
		Parameter<float4x4> g_ViewProjMatrix;
		Parameter<float4x4> g_WorldMatrix;
		Parameter<float4> g_Color;

		BasicMesh()
		{
			linker.AddFile("Shaders/Colored.fx");
			shader.AddFragments("Colored_VS_Fragment", "Colored_PS_Fragment");
		}
		void OnCreateDevice()
		{
			linker.Link(shader);
			BindUniforms(shader);
			mesh = GetDevice().CreateTeapot().value;
		}
		void Render() const
		{
			shader.Activate();
			WriteUniforms();
			mesh->DrawSubset(0);
		}
		static void Register(EffectRenderer &R)
		{
			ClassBuilder<BasicMesh>("Mesh", R)
				.Uniforms
					("g_ViewProjMatrix", &BasicMesh::g_ViewProjMatrix)
					("g_WorldMatrix", &BasicMesh::g_WorldMatrix)
					("g_Color", &BasicMesh::g_Color)
				.Resources
					(&BasicMesh::linker)
					(&BasicMesh::shader)
					(&BasicMesh::mesh)
				;
		}
	};
}

//EOF