Pseudo-c++ for Sonic 1 loop code

s1-loop.cc

void Sonic::Handle_Loops() {
    if (v_zone != id_SLZ && v_zone != id_GHZ) {
        return;
    }

    uint8_t chunk = get_chunk(obX, obY);

    if (chunk == v_256roll1 || chunk == v_256roll2) {
        // Roll tunnels, not relevant here
        Handle_Roll_Tunnels();
    } else {
        if (chunk != v_256loop1 && chunk != v_256loop2) {
            move_to_high_plane();
        } else if (chunk == v_256loop2 && is_on_air()) {
            move_to_high_plane();
        } else if ((obX % 256) < 0x2C) {
            move_to_high_plane();
        } else if ((obX % 256) >= 0xE0) {
            move_to_low_plane();
        } else if (is_on_high_plane()) {
            if (!(obAngle == 0 || obAngle > 0x80)) {
                move_to_low_plane();
            }
        } else if (obAngle > 0x80) {
            move_to_high_plane();
        }
    }
}