#include <d3d9.h>
#include "AxisRender.h"

AxisRender::AxisRender(float p_length, DWORD p_color)
{
    this->length = p_length;
    this->color = p_color;
}

AxisRender::~AxisRender()
{
    this->VertexBuffer->Release();
}

void AxisRender::InitVideoMemory(IDirect3DDevice9* p_d3ddev)
{
    this->d3ddev = p_d3ddev;

    AxisRenderFV Vertices[] =
    {
        {+(this->length),   0.0f,               0.0f,               this->color,},
        {-(this->length),   0.0f,               0.0f,               this->color,},
        {0.0f,              +(this->length),    0.0f,               this->color,},
        {0.0f,              -(this->length),    0.0f,               this->color,},
        {0.0f,              0.0f,               +(this->length),    this->color,},
        {0.0f,              0.0f,               -(this->length),    this->color,},
    };

    this->d3ddev->CreateVertexBuffer    (
                                            sizeof(Vertices),
                                            D3DUSAGE_WRITEONLY,
                                            AxisRenderFVF,
                                            D3DPOOL_MANAGED,
                                            &(this->VertexBuffer),
                                            NULL
                                        );

    void* pVoid;

    this->VertexBuffer->Lock(0, 0, (void**)&pVoid, 0);

    memcpy(pVoid, Vertices, sizeof(Vertices));

    this->VertexBuffer->Unlock();
}

void AxisRender::Render()
{
    this->d3ddev->SetStreamSource(0, this->VertexBuffer, 0, sizeof(AxisRenderFV));
    this->d3ddev->SetFVF(AxisRenderFVF);
    this->d3ddev->DrawPrimitive(D3DPT_LINELIST, 0, 3);
}