for (i = abs(hspd); i > 0; i -= 1;)
{
    move_check = sign(hspd) * i;
    if !scr_findWall(x + move_check, y) {x += move_check; break;} //no collision on full speed so break the loop and move the instance
    //try to slide around corners
    if !scr_findWall(x + move_check, y - i) y -= (i / 2);
    if !scr_findWall(x + move_check, y + i) y += (i / 2);
}