if (move == 0)
{
    image_speed = 0;
    image_index = 1;
    speed = 0;
}
if (move == 1)
{
    image_speed = .15;
    speed = 1.5;
}

// Key pressed.
if (keyboard_check(ord('W')) && move == 0)
{
    if (place_meeting(x, y - speed, o_Block) == 0)
    {
        move = 1;
        direction = 90;
        sprite_index = WALK_BACK;
    }
}

if (keyboard_check(ord('A')) && move == 0)
{
    if (place_meeting(x - speed, y, o_Block) == 0)
    {
        move = 1;
        direction = 180;
        sprite_index = WALK_LEFT;
    }
}

if (keyboard_check(ord('S')) && move == 0)
{
    if (place_meeting(x, y + speed, o_Block) == 0)
    {
        move = 1;
        direction = 270;
        sprite_index = WALK_FRONT;
    }
}

if (keyboard_check(ord('D')) && move == 0)
{
    if (place_meeting(x + speed, y, o_Block) == 0)
    {
        move = 1;
        direction = 0;
        sprite_index = WALK_RIGHT;
    }
}

// Two keys pressed.
if (keyboard_check(ord('W')) && keyboard_check(ord('D')))
{
    direction = 45;
}

if (keyboard_check(ord('W')) && keyboard_check(ord('A')))
{
    direction = 135;
}

if (keyboard_check(ord('S')) && keyboard_check(ord('A')))
{
    direction = 225;
}

if (keyboard_check(ord('S')) && keyboard_check(ord('D')))
{
    direction = 315;
}

// Key released.
if (keyboard_check_released(ord('W')))
{
    move = 0;
}

if (keyboard_check_released(ord('A')))
{
    move = 0;
}

if (keyboard_check_released(ord('S')))
{
    move = 0;
}

if (keyboard_check_released(ord('D')))
{
    move = 0;
}