From a77ed90618664e50705b3e59dd2111faec2f5f39 Mon Sep 17 00:00:00 2001
From: Paul Gilbert
Date: Thu, 6 Mar 2014 22:31:41 -0500
Subject: MADS: Implementing support methods needed for scene 804
 initialisation

---
 engines/mads/game.cpp                    | 37 ++++++++++++++--------------
 engines/mads/game.h                      | 20 ++++++++++++----
 engines/mads/messages.cpp                |  2 --
 engines/mads/msurface.cpp                | 13 ++++++++++
 engines/mads/msurface.h                  | 15 ++++++++++++
 engines/mads/nebular/globals_nebular.cpp |  5 ++--
 engines/mads/nebular/globals_nebular.h   |  2 ++
 engines/mads/nebular/nebular_scenes.cpp  | 41 +++++++++++++++++++++++++++++++-
 engines/mads/nebular/nebular_scenes.h    | 16 +++++++++++++
 engines/mads/nebular/nebular_scenes8.cpp | 32 +++++++++++++++++++++++++
 engines/mads/resources.h                 |  3 ++-
 engines/mads/scene.cpp                   |  8 +++----
 engines/mads/scene.h                     |  2 +-
 engines/mads/scene_data.cpp              | 33 ++-----------------------
 engines/mads/scene_data.h                | 11 ---------
 engines/mads/sequence.cpp                | 19 +++++++++++++++
 engines/mads/sequence.h                  |  2 ++
 engines/mads/sprites.cpp                 |  4 ++++
 engines/mads/sprites.h                   | 14 +++++++++++
 19 files changed, 202 insertions(+), 77 deletions(-)

diff --git a/engines/mads/game.cpp b/engines/mads/game.cpp
index b64c59c986..962e82ca18 100644
--- a/engines/mads/game.cpp
+++ b/engines/mads/game.cpp
@@ -140,7 +140,6 @@ void Game::sectionLoop() {
 		_v6 = 0;
 		_vm->_events->resetCursor();
 
-		_quotes = nullptr;
 		_scene.clearVocab();
 		_scene._dynamicHotspots.clear();
 		_scene.loadSceneLogic();
@@ -223,8 +222,7 @@ void Game::sectionLoop() {
 		if ((_v5 || _v6) && !_updateSceneFlag) {
 			_scene._currentSceneId = _scene._priorSceneId;
 			_updateSceneFlag = true;
-		}
-		else {
+		} else {
 			_updateSceneFlag = false;
 			_scene.loop();
 		}
@@ -232,8 +230,6 @@ void Game::sectionLoop() {
 		_vm->_events->resetCursor();
 		_v1 = 3;
 
-		delete _quotes;
-		_quotes = nullptr;
 		delete _scene._animation;
 		_scene._animation = nullptr;
 
@@ -274,22 +270,27 @@ void Game::loadResourceSequence(const Common::String prefix, int v) {
 	warning("TODO: loadResourceSequence");
 }
 
-Common::String Game::getQuote(int quoteId) {
-	if (_quotes && *_quotes) {
-		// Loop through the list of quotes
-		char *p = (char *)_quotes;
-		while (*p) {
-			// Get a pointer to the quote Id after the string
-			char *idP = p + strlen(p) + 1;
-			if (READ_LE_UINT16(idP) == quoteId)
-				// Found the correct string, so return it
-				return Common::String(p);
-
-			p = idP + 2;
+void Game::loadQuotes() {
+	File f("*QUOTES.DAT");
+	int curPos = 0;
+
+	char buffer[128];
+	strcpy(buffer, "");
+
+	while (true) {
+		uint8 b = f.readByte();
+		if (f.eos()) break;
+
+		buffer[curPos++] = b;
+		if (buffer[curPos - 1] == '\0') {
+			// end of string, add it to the strings list
+			_quotes.push_back(buffer);
+			curPos = 0;
+			strcpy(buffer, "");
 		}
 	}
 
-	return Common::String();
+	f.close();
 }
 
 } // End of namespace MADS
diff --git a/engines/mads/game.h b/engines/mads/game.h
index 0cd46b6f7e..aa1810963d 100644
--- a/engines/mads/game.h
+++ b/engines/mads/game.h
@@ -24,6 +24,7 @@
 #define MADS_GAME_H
 
 #include "common/scummsys.h"
+#include "common/str-array.h"
 #include "mads/scene.h"
 #include "mads/game_data.h"
 #include "mads/player.h"
@@ -51,6 +52,11 @@ private:
 	 * Inner game loop for executing gameplay within a game section
 	 */
 	void sectionLoop();
+
+	/**
+	 * Load quotes data
+	 */
+	void loadQuotes();
 protected:
 	MADSEngine *_vm;
 	MSurface *_surface;
@@ -59,7 +65,7 @@ protected:
 	int _statusFlag;
 	SectionHandler *_sectionHandler;
 	VisitedScenes _visitedScenes;
-	byte *_quotes;
+	Common::StringArray _quotes;
 	int _v1;
 	int _v3;
 	int _v5;
@@ -130,10 +136,14 @@ public:
 	 */
 	void run();
 
-	/**
-	 * Get a quote
-	 */
-	Common::String getQuote(int quoteId);
+	uint32 getQuotesSize() { return _quotes.size(); }
+	const Common::String &getQuote(uint32 index) { return _quotes[index - 1]; }
+
+	// DEPRECATED: ScummVM re-implementation keeps all the quotes loaded, so the methods below are stubs
+	void clearQuotes() {}
+	void loadQuoteRange(int startNum, int endNum) {}
+	void loadQuoteSet(...) {}
+	void loadQuote(int quoteNum) {}
 };
 
 } // End of namespace MADS
diff --git a/engines/mads/messages.cpp b/engines/mads/messages.cpp
index 33a6a8ef6c..aaf6c4100e 100644
--- a/engines/mads/messages.cpp
+++ b/engines/mads/messages.cpp
@@ -30,8 +30,6 @@
 namespace MADS {
 
 KernelMessages::KernelMessages(MADSEngine *vm): _vm(vm) {
-	Scene &scene = _vm->_game->_scene;
-
 	for (int i = 0; i < KERNEL_MESSAGES_SIZE; ++i) {
 		KernelMessage rec;
 		_entries.push_back(rec);
diff --git a/engines/mads/msurface.cpp b/engines/mads/msurface.cpp
index 754fea851d..74043bf91f 100644
--- a/engines/mads/msurface.cpp
+++ b/engines/mads/msurface.cpp
@@ -497,4 +497,17 @@ MSurface *MSurface::flipHorizontal() const {
 	return dest;
 }
 
+/*------------------------------------------------------------------------*/
+
+int DepthSurface::getDepth(const Common::Point &pt) {
+
+	if (_vm->_game->_scene._sceneInfo->_depthStyle == 2) {
+		int bits = (3 - (pt.x % 4)) * 2;
+		byte v = *getBasePtr(pt.x >> 2, pt.y);
+		return v >> bits;
+	} else {
+		return *getBasePtr(pt.x, pt.y) & 0xF;
+	}
+}
+
 } // End of namespace MADS
diff --git a/engines/mads/msurface.h b/engines/mads/msurface.h
index bd8142fd1a..96994170aa 100644
--- a/engines/mads/msurface.h
+++ b/engines/mads/msurface.h
@@ -202,6 +202,21 @@ public:
 	MSurface *flipHorizontal() const;
 };
 
+class DepthSurface : public MSurface {
+private:
+	MADSEngine *_vm;
+public:
+	/**
+	 * Constructor
+	 */
+	DepthSurface(MADSEngine *vm) : _vm(vm) {}
+
+	/**
+	 * Returns the depth at a given position
+	 */
+	int getDepth(const Common::Point &pt);
+};
+
 } // End of namespace MADS
 
 #endif /* MADS_MSURFACE_H */
diff --git a/engines/mads/nebular/globals_nebular.cpp b/engines/mads/nebular/globals_nebular.cpp
index 20789cd154..37ebf5f8d6 100644
--- a/engines/mads/nebular/globals_nebular.cpp
+++ b/engines/mads/nebular/globals_nebular.cpp
@@ -29,10 +29,9 @@ namespace MADS {
 namespace Nebular {
 
 Globals::Globals() {
-	// Initialise global flags
+	// Initialise lists
 	_flags.resize(210);
-	for (int i = 0; i < 210; ++i)
-		_flags[i] = 0;
+	_spriteIndexes.resize(30);
 
 	// Initialise game flags
 	_chairHotspotIndex = 0;
diff --git a/engines/mads/nebular/globals_nebular.h b/engines/mads/nebular/globals_nebular.h
index 0d8da78e42..daa384f88f 100644
--- a/engines/mads/nebular/globals_nebular.h
+++ b/engines/mads/nebular/globals_nebular.h
@@ -35,6 +35,8 @@ class Globals {
 private:
 	Common::Array<uint16> _flags;
 public:
+	Common::Array<int> _spriteIndexes;
+
 	int _chairHotspotIndex;
 	int _v1;
 	int _v2;
diff --git a/engines/mads/nebular/nebular_scenes.cpp b/engines/mads/nebular/nebular_scenes.cpp
index f82e102bfa..d14120a5b7 100644
--- a/engines/mads/nebular/nebular_scenes.cpp
+++ b/engines/mads/nebular/nebular_scenes.cpp
@@ -23,7 +23,10 @@
 #include "common/scummsys.h"
 #include "common/config-manager.h"
 #include "mads/mads.h"
+#include "mads/compression.h"
+#include "mads/resources.h"
 #include "mads/scene.h"
+#include "mads/nebular/game_nebular.h"
 #include "mads/nebular/nebular_scenes.h"
 #include "mads/nebular/nebular_scenes8.h"
 
@@ -46,7 +49,43 @@ SceneLogic *SceneFactory::createScene(MADSEngine *vm) {
 	return new Scene804(vm);
 }
 
-NebularScene::NebularScene(MADSEngine *vm) : SceneLogic(vm) {
+/*------------------------------------------------------------------------*/
+
+NebularScene::NebularScene(MADSEngine *vm) : SceneLogic(vm),
+		_globals(static_cast<GameNebular *>(vm->_game)->_globals) {
+}
+
+Common::String NebularScene::formAnimName(char sepChar, int suffixNum) {
+	return Resources::formatName(_scene->_currentSceneId, sepChar, suffixNum,
+		EXT_NONE, "");
+}
+
+/*------------------------------------------------------------------------*/
+
+void SceneInfoNebular::loadCodes(MSurface &depthSurface) {
+	File f(Resources::formatName(RESPREFIX_RM, _sceneId, ".DAT"));
+	MadsPack codesPack(&f);
+	Common::SeekableReadStream *stream = codesPack.getItemStream(0);
+
+	byte *destP = depthSurface.getData();
+	byte *endP = depthSurface.getBasePtr(0, depthSurface.h);
+
+	byte runLength = stream->readByte();
+	while (destP < endP && runLength > 0) {
+		byte runValue = stream->readByte();
+
+		// Write out the run length
+		Common::fill(destP, destP + runLength, runValue);
+		destP += runLength;
+
+		// Get the next run length
+		runLength = stream->readByte();
+	}
+
+	if (destP < endP)
+		Common::fill(destP, endP, 0);
+	delete stream;
+	f.close();
 }
 
 } // End of namespace Nebular
diff --git a/engines/mads/nebular/nebular_scenes.h b/engines/mads/nebular/nebular_scenes.h
index 9d617bb543..92b5626bf0 100644
--- a/engines/mads/nebular/nebular_scenes.h
+++ b/engines/mads/nebular/nebular_scenes.h
@@ -95,6 +95,11 @@ public:
 class NebularScene : public SceneLogic {
 protected:
 	Globals &_globals;
+
+	/**
+	 * Forms an animation resoucre name
+	 */
+	Common::String formAnimName(char sepChar, int suffixNum);
 public:
 	/**
 	 * Constructor
@@ -102,6 +107,17 @@ public:
 	NebularScene(MADSEngine *vm);
 };
 
+class SceneInfoNebular : public SceneInfo {
+	friend class SceneInfo;
+protected:
+	virtual void loadCodes(MSurface &depthSurface);
+
+	/**
+	* Constructor
+	*/
+	SceneInfoNebular(MADSEngine *vm) : SceneInfo(vm) {}
+};
+
 } // End of namespace Nebular
 
 } // End of namespace MADS
diff --git a/engines/mads/nebular/nebular_scenes8.cpp b/engines/mads/nebular/nebular_scenes8.cpp
index d08e64506e..773b0e6d7a 100644
--- a/engines/mads/nebular/nebular_scenes8.cpp
+++ b/engines/mads/nebular/nebular_scenes8.cpp
@@ -75,6 +75,38 @@ void Scene8xx::enter1() {
 /*------------------------------------------------------------------------*/
 
 void Scene804::setup() {
+	_globals._chairHotspotIndex = 0;
+	_globals._v1 = _globals._v2 = 0;
+	_globals._v3 = _globals._v4 = 0;
+	_globals._v5 = -1;
+	_globals._v6 = _globals._v7 = 0;
+	_globals._v8 = 0;
+	if (_globals[5]) {
+		// Copy protection failed
+		_globals[165] = 0xFFFF;
+		_globals[164] = 0;
+	}
+
+	_globals._spriteIndexes[3] = _scene->_sprites.addSprites(formAnimName('x', 0));
+	_globals._spriteIndexes[4] = _scene->_sprites.addSprites(formAnimName('x', 1));
+	_globals._spriteIndexes[5] = _scene->_sprites.addSprites(formAnimName('x', 2));
+	_globals._spriteIndexes[0] = _scene->_sprites.addSprites(formAnimName('x', 3));
+	_globals._spriteIndexes[6] = _scene->_sprites.addSprites(formAnimName('x', 4));
+	_globals._spriteIndexes[7] = _scene->_sprites.addSprites(formAnimName('f', 1));
+
+	_vm->_game->loadQuoteSet(791, 0);
+
+	if (_globals[165]) {
+		if (_globals[164]) {
+			_globals._spriteIndexes[19] = _scene->_sequences.startCycle(
+				_globals._spriteIndexes[4], 0, 1);
+			// TODO
+		} else {
+
+		}
+	} else {
+		// TODO
+	}
 }
 
 void Scene804::enter() {
diff --git a/engines/mads/resources.h b/engines/mads/resources.h
index 01f6490ecc..3d5d582707 100644
--- a/engines/mads/resources.h
+++ b/engines/mads/resources.h
@@ -36,7 +36,8 @@ enum RESPREFIX {
 };
 
 enum EXTTYPE {
-	EXT_SS = 1, EXT_AA = 2, EXT_DAT = 3, EXT_HH = 4, EXT_ART = 5, EXT_INT = 6
+	EXT_NONE = -1, EXT_SS = 1, EXT_AA = 2, EXT_DAT = 3, EXT_HH = 4, 
+	EXT_ART = 5, EXT_INT = 6
 };
 
 class Resources {
diff --git a/engines/mads/scene.cpp b/engines/mads/scene.cpp
index f974be4d1e..bbf46f164c 100644
--- a/engines/mads/scene.cpp
+++ b/engines/mads/scene.cpp
@@ -28,10 +28,10 @@
 
 namespace MADS {
 
-Scene::Scene(MADSEngine *vm): _vm(vm), _action(_vm), _dirtyAreas(_vm), 
-		_dynamicHotspots(vm), _interface(vm), _kernelMessages(vm), 
-		_screenObjects(vm), _sequences(vm), _spriteSlots(vm), 
-		_textDisplay(vm) {
+Scene::Scene(MADSEngine *vm): _vm(vm), _action(_vm), _depthSurface(vm),
+		_dirtyAreas(_vm),  _dynamicHotspots(vm), _interface(vm), 
+		_kernelMessages(vm), _screenObjects(vm), _sequences(vm), 
+		_sprites(vm), _spriteSlots(vm), _textDisplay(vm) {
 	_priorSceneId = 0;
 	_nextSceneId = 0;
 	_currentSceneId = 0;
diff --git a/engines/mads/scene.h b/engines/mads/scene.h
index f31927d877..3fe3a4eddf 100644
--- a/engines/mads/scene.h
+++ b/engines/mads/scene.h
@@ -98,7 +98,7 @@ public:
 	int _v1;
 	SceneInfo *_sceneInfo;
 	MSurface _backgroundSurface;
-	MSurface _depthSurface;
+	DepthSurface _depthSurface;
 	InterfaceSurface _interface;
 	bool _animFlag;
 	int _animVal1;
diff --git a/engines/mads/scene_data.cpp b/engines/mads/scene_data.cpp
index 813e9062cf..c15a3876a8 100644
--- a/engines/mads/scene_data.cpp
+++ b/engines/mads/scene_data.cpp
@@ -383,9 +383,8 @@ void SceneInfo::SpriteInfo::load(Common::SeekableReadStream *f) {
 
 SceneInfo *SceneInfo::init(MADSEngine *vm) {
 	if (vm->getGameID() == GType_RexNebular) {
-		return new SceneInfoNebular(vm);
-	}
-	else {
+		return new Nebular::SceneInfoNebular(vm);
+	} else {
 		return new SceneInfo(vm);
 	}
 }
@@ -587,34 +586,6 @@ void SceneInfo::loadCodes(MSurface &depthSurface) {
 
 /*------------------------------------------------------------------------*/
 
-void SceneInfoNebular::loadCodes(MSurface &depthSurface) {
-	File f(Resources::formatName(RESPREFIX_RM, _sceneId, ".DAT"));
-	MadsPack codesPack(&f);
-	Common::SeekableReadStream *stream = codesPack.getItemStream(0);
-
-	byte *destP = depthSurface.getData();
-	byte *endP = depthSurface.getBasePtr(0, depthSurface.h);
-
-	byte runLength = stream->readByte();
-	while (destP < endP && runLength > 0) {
-		byte runValue = stream->readByte();
-
-		// Write out the run length
-		Common::fill(destP, destP + runLength, runValue);
-		destP += runLength;
-
-		// Get the next run length
-		runLength = stream->readByte();
-	}
-
-	if (destP < endP)
-		Common::fill(destP, endP, 0);
-	delete stream;
-	f.close();
-}
-
-/*------------------------------------------------------------------------*/
-
 SceneLogic::SceneLogic(MADSEngine *vm) : _vm(vm) {
 	_scene = &_vm->_game->_scene;
 }
diff --git a/engines/mads/scene_data.h b/engines/mads/scene_data.h
index 4d8cfc72cf..d2fd624512 100644
--- a/engines/mads/scene_data.h
+++ b/engines/mads/scene_data.h
@@ -288,17 +288,6 @@ public:
 		MSurface &depthSurface, MSurface &bgSurface);
 };
 
-class SceneInfoNebular : public SceneInfo {
-	friend class SceneInfo;
-protected:
-	virtual void loadCodes(MSurface &depthSurface);
-
-	/**
-	* Constructor
-	*/
-	SceneInfoNebular(MADSEngine *vm) : SceneInfo(vm) {}
-};
-
 } // End of namespace MADS
 
 #endif /* MADS_SCENE_DATA_H */
diff --git a/engines/mads/sequence.cpp b/engines/mads/sequence.cpp
index 8f25007b48..33febe3ec7 100644
--- a/engines/mads/sequence.cpp
+++ b/engines/mads/sequence.cpp
@@ -367,4 +367,23 @@ void SequenceList::scan() {
 void SequenceList::setDepth(int seqIndex, int depth) {
 	_entries[seqIndex]._depth = depth;
 }
+
+int SequenceList::addSpriteCycle(int srcSpriteIdx, bool flipped, int numTicks, int triggerCountdown, int timeoutTicks, int extraTicks) {
+	Scene &scene = _vm->_game->_scene;
+	MSprite *spriteFrame = scene._spriteSlots.getSprite(srcSpriteIdx).getFrame(0);
+	int depth = scene._depthSurface.getDepth(Common::Point(spriteFrame->_pos.x + 
+		(spriteFrame->w / 2), spriteFrame->_pos.y + (spriteFrame->h / 2)));
+
+	return add(srcSpriteIdx, flipped, 1, triggerCountdown, timeoutTicks, extraTicks, numTicks, 0, 0,
+		true, 100, depth - 1, 1, ANIMTYPE_CYCLED, 0, 0);
+}
+
+int SequenceList::startCycle(int srcSpriteIndex, bool flipped, int cycleIndex) {
+	int result = addSpriteCycle(srcSpriteIndex, flipped, INDEFINITE_TIMEOUT, 0, 0, 0);
+	if (result >= 0)
+		setAnimRange(result, cycleIndex, cycleIndex);
+
+	return result;
+}
+
 } // End of namespace 
diff --git a/engines/mads/sequence.h b/engines/mads/sequence.h
index f73d48bb8f..80f695cf5a 100644
--- a/engines/mads/sequence.h
+++ b/engines/mads/sequence.h
@@ -102,6 +102,8 @@ public:
 	void setAnimRange(int seqIndex, int startVal, int endVal);
 	void scan();
 	void setDepth(int seqIndex, int depth);
+	int addSpriteCycle(int srcSpriteIdx, bool flipped, int numTicks, int triggerCountdown, int timeoutTicks, int extraTicks);
+	int startCycle(int srcSpriteIdx, bool flipped, int cycleIndex);
 };
 
 } // End of namespace MADS
diff --git a/engines/mads/sprites.cpp b/engines/mads/sprites.cpp
index 23360b0a00..321acf026d 100644
--- a/engines/mads/sprites.cpp
+++ b/engines/mads/sprites.cpp
@@ -355,4 +355,8 @@ int SpriteSets::add(SpriteAsset *asset, int idx) {
 	return idx;
 }
 
+int SpriteSets::addSprites(const Common::String &resName, int flags) {
+	return add(new SpriteAsset(_vm, resName, flags));
+}
+
 } // End of namespace MADS
diff --git a/engines/mads/sprites.h b/engines/mads/sprites.h
index 49f13add21..2061a41043 100644
--- a/engines/mads/sprites.h
+++ b/engines/mads/sprites.h
@@ -201,11 +201,25 @@ public:
 };
 
 class SpriteSets : public Common::Array<SpriteAsset *> {
+private:
+	MADSEngine *_vm;
 public:
+	/**
+	 * Constructor
+	 */
+	SpriteSets(MADSEngine *vm) : _vm(vm) {}
+
 	/**
 	* Add a sprite asset to the list
 	*/
 	int add(SpriteAsset *asset, int idx = 0);
+
+	/**
+	 * Adds a sprite asset to the list by name
+	 */
+	int addSprites(const Common::String &resName, int flags = 0);
+
+	int startCycle(int srcSpriteIndex, bool flipped, int cycleIndex);
 };
 
 } // End of namespace MADS
-- 
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