TITANIC: Implement PET Conversations dial logic

6 files changed, 89 insertions, 9 deletions

diff --git a/engines/titanic/pet_control/pet_conversations.cpp b/engines/titanic/pet_control/pet_conversations.cpp
index bffcb6ddd2..a62de341a0 100644
--- a/engines/titanic/pet_control/pet_conversations.cpp
+++ b/engines/titanic/pet_control/pet_conversations.cpp
@@ -47,7 +47,7 @@ CPetConversations::CPetConversations() : CPetSection(),
 	_textInput.setColor(getColor(0));
 	_textInput.setup();
 
-	_valArray3[0] = _valArray3[1] = _valArray3[2] = 0;
+	_npcLevels[0] = _npcLevels[1] = _npcLevels[2] = 0;
 }
 
 bool CPetConversations::setup(CPetControl *petControl) {
@@ -217,7 +217,7 @@ void CPetConversations::load(SimpleFile *file, int param) {
 	_log.load(file, param);
 
 	for (int idx = 0; idx < 3; ++idx)
-		_valArray3[idx] = file->readNumber();
+		_npcLevels[idx] = file->readNumber();
 }
 
 void CPetConversations::postLoad() {
@@ -229,7 +229,7 @@ void CPetConversations::save(SimpleFile *file, int indent) const {
 	_log.save(file, indent);
 
 	for (int idx = 0; idx < 3; ++idx)
-		file->writeNumberLine(_valArray3[idx], indent);
+		file->writeNumberLine(_npcLevels[idx], indent);
 }
 
 void CPetConversations::enter(PetArea oldArea) {
@@ -246,6 +246,19 @@ void CPetConversations::leave() {
 	stopNPCTimer();
 }
 
+void CPetConversations::proc25(int val) {
+	if (val == 1) {
+		proc25(val);
+	} else {
+		CString name = _field418 ? _npcName : getActiveNPCName();
+
+		for (int idx = 0; idx < 3; ++idx) {
+			if (!_dials[idx].hasActiveMovie())
+				updateDial(idx, name);
+		}
+	}
+}
+
 void CPetConversations::displayNPCName(CGameObject *npc) {
 	if (npc) {
 		displayMessage(CString());
@@ -491,4 +504,46 @@ void CPetConversations::copyColors(uint tableNum, uint colors[5]) {
 	Common::copy(src, src + 5, colors);
 }
 
+void CPetConversations::updateDial(uint dialNum, const CString &npcName) {
+	TTNamedScript *script = getNPCScript(npcName);
+	uint newLevel = getDialLevel(dialNum, script);
+	npcDialChange(dialNum, _npcLevels[dialNum], newLevel);
+	_npcLevels[dialNum] = newLevel;
+}
+
+uint CPetConversations::getDialLevel(uint dialNum, TTNamedScript *script, int v) {
+	bool flag = v != 0;
+
+	if (!script)
+		return 0;
+	else
+		return MAX(script->getDialLevel(dialNum), 15);
+}
+
+void CPetConversations::npcDialChange(uint dialNum, int oldLevel, int newLevel) {
+	const uint range1[2] = { 0, 21 };
+	const uint range2[2] = { 22, 43 };
+
+	if (newLevel != oldLevel) {
+		uint src = range1[0], dest = range1[1];
+		if (oldLevel < newLevel) {
+			src = range2[0];
+			dest = range2[1];
+		}
+
+		int64 val1 = (oldLevel * dest) + (100 - oldLevel) * src;
+		val1 *= 0x51EB851F;
+		val1 >>= 37;
+		uint startFrame = val1 + (val1 >> 31);
+
+		int64 val2 = (newLevel * dest) + (100 - newLevel) * src;
+		val2 *= 0x51EB851F;
+		val2 >>= 37;
+		uint endFrame = val2 + (val2 >> 31);
+
+		if (startFrame != endFrame)
+			_dials[dialNum].playMovie(startFrame, endFrame);
+	}
+}
+
 } // End of namespace Titanic
diff --git a/engines/titanic/pet_control/pet_conversations.h b/engines/titanic/pet_control/pet_conversations.h
index 57c7fbd9b2..6e8ffbee41 100644
--- a/engines/titanic/pet_control/pet_conversations.h
+++ b/engines/titanic/pet_control/pet_conversations.h
@@ -47,7 +47,7 @@ private:
 	int _npcNum;
 	CPetText _log;
 	CPetText _textInput;
-	int _valArray3[3];
+	uint _npcLevels[3];
 	bool _logChanged;
 	int _field418;
 	CString _npcName;
@@ -131,6 +131,21 @@ private:
 	 * Create a color table
 	 */
 	void copyColors(uint tableNum, uint colors[5]);
+
+	/**
+	 * Updates one of the dials with data from a given NPC
+	 */
+	void updateDial(uint dialNum, const CString &npcName);
+
+	/**
+	 * Get a dial level
+	 */
+	uint getDialLevel(uint dialNum, TTNamedScript *script, int v = 1);
+
+	/**
+	 * Called when the dial for an NPC is being changed
+	 */
+	void npcDialChange(uint dialNum, int oldLevel, int newLevel);
 public:
 	CPetConversations();
 	virtual ~CPetConversations() {}
@@ -199,6 +214,8 @@ public:
 	 */
 	virtual void leave();
 
+	virtual void proc25(int val);
+
 	/**
 	 * Display a title for an NPC
 	 */
diff --git a/engines/titanic/pet_control/pet_section.cpp b/engines/titanic/pet_control/pet_section.cpp
index 8cd9207316..7f0a0005e5 100644
--- a/engines/titanic/pet_control/pet_section.cpp
+++ b/engines/titanic/pet_control/pet_section.cpp
@@ -42,8 +42,11 @@ void CPetSection::displayMessage(const CString &msg) {
 	error("TODO");
 }
 
-void CPetSection::proc25() {
-	error("TODO");
+void CPetSection::proc25(int val) {
+	if (!val) {
+		proc28();
+		_petControl->makeDirty();
+	}
 }
 
 void CPetSection::proc27(int duration) {
diff --git a/engines/titanic/pet_control/pet_section.h b/engines/titanic/pet_control/pet_section.h
index 0d7ede6230..2a70b1dabb 100644
--- a/engines/titanic/pet_control/pet_section.h
+++ b/engines/titanic/pet_control/pet_section.h
@@ -142,7 +142,7 @@ public:
 	 */
 	virtual void enterRoom(CRoomItem *room) {}
 
-	virtual void proc25();
+	virtual void proc25(int val);
 
 	/**
 	 * Get a reference to the tooltip text associated with the section
diff --git a/engines/titanic/true_talk/tt_named_script.cpp b/engines/titanic/true_talk/tt_named_script.cpp
index 7f4bb5b201..9d253206e2 100644
--- a/engines/titanic/true_talk/tt_named_script.cpp
+++ b/engines/titanic/true_talk/tt_named_script.cpp
@@ -218,7 +218,7 @@ int TTNamedScript::proc34() {
 	return 0;
 }
 
-int TTNamedScript::proc35(int v1, int v2) {
+int TTNamedScript::getDialLevel(uint dialNum, bool flag) {
 	warning("TODO");
 	return 0;
 }
diff --git a/engines/titanic/true_talk/tt_named_script.h b/engines/titanic/true_talk/tt_named_script.h
index ec5c35c843..8174f64c53 100644
--- a/engines/titanic/true_talk/tt_named_script.h
+++ b/engines/titanic/true_talk/tt_named_script.h
@@ -103,7 +103,12 @@ public:
 	virtual void proc32();
 	virtual void proc33(int v1, int v2);
 	virtual int proc34();
-	virtual int proc35(int v1, int v2);
+
+	/**
+	 * Get the NPC's dial level
+	 */
+	virtual int getDialLevel(uint dialNum, bool flag = true);
+
 	virtual int proc36() const;
 	virtual int proc37() const;