// Tom Plick
// 24 Jul 2005

#include "mesh.h"
#include "d3dUtility.h"

D3DXMATRIX rotMatrix;

Mesh::Mesh(IDirect3DDevice9* device, char * xfilename)
{
	this->Device = device;

	HRESULT result = D3DXLoadMeshFromX(
			xfilename,
			D3DXMESH_MANAGED,
			device,
			&buf_adjacency,
			&buf_materials,
			NULL,		// effect instances
			&num_materials,
			&dx_mesh);

	bright_material = d3d::InitMtrl(0x00ff00ff, 0x00ff00ff, 0x00ff00ff,
								0x00ff00ff, 1.0f);
}

Mesh::~Mesh()
{
	buf_materials->Release();
	buf_adjacency->Release();
	dx_mesh->Release();
}

void Mesh::Draw(double x, double y, double z, bool rotate, double angle)
{
	D3DXMATRIX W;
	D3DXMatrixTranslation(&W, (float) x, (float) y, (float) z);
	if (rotate){
		D3DXMatrixRotationX(&::rotMatrix, angle);
		// W *= ::rotMatrix;
		W = rotMatrix * W;
	}
	Device->SetTransform(D3DTS_WORLD, &W);

	D3DXMATERIAL* mtrls = (D3DXMATERIAL*)
				buf_materials->GetBufferPointer();

	Device->SetTexture(0, 0);
	for (DWORD mat = 0; mat < num_materials; mat++){
		Device->SetMaterial(&mtrls[mat].MatD3D);

		dx_mesh->DrawSubset(mat);
	}
}

ID3DXMesh * Mesh::getMesh()
{
	return dx_mesh;
}