TITANIC: Implementing game logic classes

1 files changed, 133 insertions, 2 deletions

diff --git a/engines/titanic/game/chev_code.cpp b/engines/titanic/game/chev_code.cpp
index ebc20578b7..4dd3ac3d4a 100644
--- a/engines/titanic/game/chev_code.cpp
+++ b/engines/titanic/game/chev_code.cpp
@@ -24,16 +24,147 @@
 
 namespace Titanic {
 
+BEGIN_MESSAGE_MAP(CChevCode, CGameObject)
+	ON_MESSAGE(SetChevLiftBits)
+	ON_MESSAGE(SetChevClassBits)
+	ON_MESSAGE(SetChevFloorBits)
+	ON_MESSAGE(SetChevRoomBits)
+	ON_MESSAGE(GetChevLiftNum)
+	ON_MESSAGE(GetChevClassNum)
+	ON_MESSAGE(GetChevFloorNum)
+	ON_MESSAGE(GetChevRoomNum)
+	ON_MESSAGE(CheckChevCode)
+	ON_MESSAGE(GetChevCodeFromRoomNameMsg)
+END_MESSAGE_MAP()
+
 void CChevCode::save(SimpleFile *file, int indent) {
 	file->writeNumberLine(1, indent);
-	file->writeNumberLine(_value, indent);
+	file->writeNumberLine(_floorBits, indent);
 	CGameObject::save(file, indent);
 }
 
 void CChevCode::load(SimpleFile *file) {
 	file->readNumber();
-	_value = file->readNumber();
+	_floorBits = file->readNumber();
 	CGameObject::load(file);
 }
 
+bool CChevCode::SetChevLiftBits(CSetChevLiftBits *msg) {
+	_floorBits &= ~0xC0000;
+	if (msg->_liftNum > 0 && msg->_liftNum < 5)
+		_floorBits = ((msg->_liftNum - 1) << 18) | _floorBits;
+
+	return true;
+}
+
+bool CChevCode::SetChevClassBits(CSetChevClassBits *msg) {
+	_floorBits &= ~0x30000;
+	if (msg->_classNum > 0 && msg->_classNum < 4)
+		_floorBits = (msg->_classNum << 16) | msg->_classNum;
+
+	return true;
+}
+
+bool CChevCode::SetChevFloorBits(CSetChevFloorBits *msg) {
+	int section = (msg->_floorNum + 4) / 10;
+	int index = (msg->_floorNum + 4) % 10;
+	_floorBits &= ~0xFF00;
+	
+	int val;
+	switch (section) {
+	case 0:
+		val = 144;
+		break;
+	case 1:
+		val = 208;
+		break;
+	case 2:
+		val = 224;
+		break;
+	case 3:
+		val = 240;
+		break;
+	default:
+		break;
+	}
+	
+	_floorBits |= ((index + val) << 8);
+	return true;
+}
+
+bool CChevCode::SetChevRoomBits(CSetChevRoomBits *msg) {
+	_floorBits &= ~0xff;
+	if (msg->_roomNum > 0 && msg->_roomNum < 128)
+		_floorBits |= msg->_roomNum * 2;
+
+	return true;
+}
+
+bool CChevCode::GetChevLiftNum(CGetChevLiftNum *msg) {
+	msg->_liftNum = (_floorBits >> 18) & 3 + 1;
+	return true;
+}
+
+bool CChevCode::GetChevClassNum(CGetChevClassNum *msg) {
+	msg->_classNum = (_floorBits >> 16) & 3;
+	return true;
+}
+
+bool CChevCode::GetChevFloorNum(CGetChevFloorNum *msg) {
+	int val1 = (_floorBits >> 8) & 0xF;
+	int val2 = (_floorBits >> 12) & 0xF - 9;
+
+	switch (val2) {
+	case 0:
+		val2 = 0;
+		break;
+	case 4:
+		val2 = 1;
+		break;
+	case 5:
+		val2 = 2;
+		break;
+	case 6:
+		val2 = 3;
+		break;
+	default:
+		val2 = 4;
+		break;
+	}
+
+	msg->_floorNum = (val1 >= 10) ? 0 : val1 * 10;
+	return true;
+}
+
+bool CChevCode::GetChevRoomNum(CGetChevRoomNum *msg) {
+	msg->_roomNum = (_floorBits >> 1) & 0x7F;
+	return true;
+}
+
+bool CChevCode::CheckChevCode(CCheckChevCode *msg) {
+	// TODO
+	return true;
+}
+
+bool CChevCode::GetChevCodeFromRoomNameMsg(CGetChevCodeFromRoomNameMsg *msg) {
+	static const char *const ROOM_NAMES[13] = {
+		"ParrotLobby", "sculptureChamber", "Bar", "EmbLobby", "MusicRoom",
+		"Titania", "BottomOfWell", "Arboretum", "PromenadeDeck",
+		"FCRestrnt", "CrtrsCham", "BilgeRoom", "Bridge"
+	};
+	static const uint CHEV_CODES[13] = {
+		0x1D0D9, 0x465FB, 0xB3D97, 0xCC971, 0xF34DB, 0x8A397, 0x59FAD,
+		0x4D6AF, 0x79C45, 0x196D9, 0x2F86D, 0x3D94B, 0x39FCB
+	};
+
+	for (int idx = 0; idx < 13; ++idx) {
+		if (msg->_roomName == ROOM_NAMES[idx]) {
+			msg->_chevCode = CHEV_CODES[idx];
+			break;
+		}
+	}
+
+	return true;
+}
+
 } // End of namespace Titanic