/* ================================================= *\
 * talk.sun
 *
 * ssc standard include utility
 * 2015-2016 arookas
\* ================================================= */

// ================================================= \\
// TALK
// ================================================= \\

// flags
var const TALKF_WAIT		= 0;
var const TALKF_CLOSE		= (1 << 0);

// builtins
builtin getTalkMode();
builtin isTalkModeNow();

builtin setTalkMsgID(msgID, flags);

builtin getTalkNPC();
builtin getTalkNPCName();

builtin setValue2TalkVariable(variable, value); // stub

// functions
function waitTalkStart(name) {
	while (true) {
		if (isTalkModeNow()) {
			if (getTalkNPCName() == name) {
				break;
			}
		}
		yield;
	}
}
function waitTalkStartHandle(handle) {
	while (true) {
		if (isTalkModeNow()) {
			if (getTalkNPC() == handle) {
				break;
			}
		}
		yield;
	}
}

// sets message (blocking)
function talk(msgID, flags) {
	setTalkMsgID(msgID, flags);
	if (flags & TALKF_CLOSE) {
		while (isTalkModeNow()) {
			yield;
		}
	}
	else {
		yield;
		while (!getTalkMode()) {
			yield;
		}
	}
}

function talkAndWait(msgID) { talk(msgID, TALKF_WAIT); }
function talkAndClose(msgID) { talk(msgID, TALKF_CLOSE); }

// ================================================= \\
// SELECT
// ================================================= \\

// builtins
builtin getTalkSelectedValue();

// functions
function select(msgID, flags) {
	setTalkMsgID(msgID, flags);
	if (flags & TALKF_CLOSE) {
		while (isTalkModeNow()) {
			yield;
		}
	}
	else {
		do {
			yield;
		} while (!getTalkMode());
	}
	return getTalkSelectedValue();
}

function talkAndSelect(msgID) { return select(msgID, TALKF_WAIT); }
function talkAndSelectClose(msgID) { return select(msgID, TALKF_CLOSE); }

// ================================================= \\
// FORCE
// ================================================= \\

// builtins
builtin __forceStartTalk(handle);
builtin __forceStartTalkExceptNpc(handle);
builtin forceCloseTalk();

// functions
function forceTalk(handle) {
	var result = __forceStartTalk(handle);
	if (result) {
		while (!isTalkModeNow()) {
			yield;
		}
	}
	return result;
}
function forceTalkExceptNpc(handle) {
	var result = __forceStartTalkExceptNpc(handle);
	if (result) {
		while (!isTalkModeNow()) {
			yield;
		}
	}
	return result;
}