Method clear_text

src/SB/Game/zTalkBox.cpp:1374–1377

    add_text((const char*)(a + 1));
}
void ztalkbox::clear_text()
{
    set_text((const char*)NULL);
}
void ztalkbox::start_talk(const char* s, callback* cb, zNPCCommon* npc)
{
    this->npc = npc;