SHERLOCK: RT: Implement cmdSetSceneEntryFlag

engines/sherlock/tattoo/tattoo_scene.h

@@ -35,12 +35,12 @@ enum {
 };
 
 struct SceneTripEntry {
-	bool _flag;
+	int _flag;
 	int _sceneNumber;
 	int _numTimes;
 
-	SceneTripEntry() : _flag(false), _sceneNumber(0), _numTimes(0) {}
-	SceneTripEntry(bool flag, int sceneNumber, int numTimes) : _flag(flag),
+	SceneTripEntry() : _flag(0), _sceneNumber(0), _numTimes(0) {}
+	SceneTripEntry(int flag, int sceneNumber, int numTimes) : _flag(flag),
 		_sceneNumber(sceneNumber), _numTimes(numTimes) {}
 };
 

engines/sherlock/tattoo/tattoo_talk.cpp

@@ -726,7 +726,32 @@ OpcodeReturn TattooTalk::cmdSetNPCWalkGraphics(const byte *&str) {
 	return RET_SUCCESS;
 }
 
-OpcodeReturn TattooTalk::cmdSetSceneEntryFlag(const byte *&str) { error("TODO: script opcode (cmdSetSceneEntryFlag)"); }
+OpcodeReturn TattooTalk::cmdSetSceneEntryFlag(const byte *&str) {
+	TattooScene &scene = *(TattooScene *)_vm->_scene;
+	++str;
+	int flag = (str[0] - 1) * 256 + str[1] - 1 - (str[1] == 1);
+
+	int flag1 = flag & 16383;
+	if (flag > 16383)
+		flag1 *= -1;
+
+	str += 2;
+
+	// Make sure that this instance is not already being tracked
+	bool found = false;
+	for (uint idx = 0; idx < scene._sceneTripCounters.size() && !found; ++idx) {
+		SceneTripEntry &entry = scene._sceneTripCounters[idx];
+		if (entry._flag == flag1 && entry._sceneNumber == str[0] - 1)
+			found = true;
+	}
+
+	// Only add it if it's not being tracked already
+	if (!found)
+		scene._sceneTripCounters.push_back(SceneTripEntry(flag1, str[0] - 1, str[1] - 1));
+
+	++str;
+	return RET_SUCCESS;
+}
 
 OpcodeReturn TattooTalk::cmdSetTalkSequence(const byte *&str) {
 	TattooPeople &people = *(TattooPeople *)_vm->_people;