struct Triangle {
    GLushort vertex[3];
    GLushort color[3];
};

QOpenGLBuffer arrayBuf;
QOpenGLBuffer indexBuf;
QOpenGLBuffer colorBuf;

void init() {
    QVector3D vertices[] = {
        QVector3D(-1, -1, 1),
        QVector3D(1, -1, 1),
        QVector3D(1, 1, 1),
        QVector3D(-1, 1, 1),

        QVector3D(1, -1, -1),
        QVector3D(-1, -1, -1),
        QVector3D(-1, 1, -1),
        QVector3D(1, 1, -1)
    };

    QVector3D colors[] = {
        QVector3D(1,1,1),
        QVector3D(1,1,1),
        QVector3D(1,1,1)
    };

    Triangle index[] = {
        {{0,1,2},{0,1,2}},
        {{2,3,0},{0,1,2}}
    };


    arrayBuf.bind();
    arrayBuf.allocate(vertices, sizeof(vertices));

    colorBuf.bind();
    colorBuf.allocate(colors, sizeof(colors));

    indexBuf.bind();
    indexBuf.allocate(index, sizeof(index));
}

void draw(QOpenGLShaderProgram *program) {
    arrayBuf.bind();
    colorBuf.bind();
    indexBuf.bind();

    // HERFRA SKURRER DET VELDIG
    int vertexLocation = program->attributeLocation("a_position");
    program->enableAttributeArray(vertexLocation);
    program->setAttributeBuffer(vertexLocation, GL_FLOAT, 0, 3, sizeof(QVector3D));

    int colorLocation = program->attributeLocation("a_color");
    program->enableAttributeArray(colorLocation);
    program->setAttributeBuffer(colorLocation, GL_FLOAT, 1, 3, sizeof(QVector3D));

    glDrawElements(GL_TRIANGLES, indexCount, GL_UNSIGNED_SHORT, 0);
}