PRINCE: Room resource loading started

3 files changed, 131 insertions, 24 deletions

diff --git a/engines/prince/resource.h b/engines/prince/resource.h
index a5e389a37d..2f7e6ba3a8 100644
--- a/engines/prince/resource.h
+++ b/engines/prince/resource.h
@@ -26,6 +26,7 @@
 #include "common/stream.h"
 #include "common/archive.h"
 #include "common/debug-channels.h"
+#include "common/ptr.h"
 
 namespace Prince {
 
@@ -36,43 +37,44 @@ namespace Resource {
 		return resource.loadFromStream(stream);
 	}
 
-
 	template<typename T>
 	bool loadResource(T *resource, const char *resourceName, bool required = true) {
-		Common::SeekableReadStream *stream = SearchMan.createReadStreamForMember(resourceName);
+		Common::ScopedPtr<Common::SeekableReadStream> stream(SearchMan.createReadStreamForMember(resourceName));
 		if (!stream) {
 			if (required) 
 				error("Can't load %s", resourceName);
 			return false;
 		}
 
-		bool ret = loadFromStream(*resource, *stream);
+		return loadFromStream(*resource, *stream);
+	} 
 
-		delete stream;
+	template <typename T>
+	bool loadResource(Common::Array<T> &array, Common::SeekableReadStream &stream, bool required = true) {
+		T t;
+		while (t.loadFromStream(stream))
+			array.push_back(t);
+
+		return true;
+	}
 
-		return ret;
-	} 
 
 	template <typename T>
 	bool loadResource(Common::Array<T> &array, const char *resourceName, bool required = true) {
-		Common::SeekableReadStream *stream = SearchMan.createReadStreamForMember(resourceName);
+		Common::ScopedPtr<Common::SeekableReadStream> stream(SearchMan.createReadStreamForMember(resourceName));
 		if (!stream) {
 			if (required)
 				error("Can't load %s", resourceName);
 			return false;
 		}
 
-		T t;
-		while (t.loadFromStream(*stream))
-			array.push_back(t);
-
-		delete stream;
-		return true;
+		return loadResource(array, *stream, required);
 	}
 
 	template <typename T>
 	bool loadResource(Common::Array<T *> &array, const char *resourceName, bool required = true) {
-		Common::SeekableReadStream *stream = SearchMan.createReadStreamForMember(resourceName);
+
+		Common::ScopedPtr<Common::SeekableReadStream> stream(SearchMan.createReadStreamForMember(resourceName));
 		if (!stream) {
 			if (required)
 				error("Can't load %s", resourceName);
@@ -88,10 +90,9 @@ namespace Resource {
 			}
 			array.push_back(t);
 		}
-
-		delete stream;
 		return true;
 	}
+
 }
 
 }
diff --git a/engines/prince/script.cpp b/engines/prince/script.cpp
index ce250f1c5a..84174ec23c 100644
--- a/engines/prince/script.cpp
+++ b/engines/prince/script.cpp
@@ -26,19 +26,92 @@
 #include "prince/variatxt.h"
 #include "prince/font.h"
 #include "prince/hero.h"
+#include "prince/resource.h"
 
 #include "common/debug.h"
 #include "common/debug-channels.h"
 #include "common/stream.h"
 #include "common/archive.h"
-
-#include "audio/decoders/wave.h"
-#include "audio/audiostream.h"
+#include "common/memstream.h"
 
 namespace Prince {
 
 static const uint16 NUM_OPCODES = 144;
 
+Room::Room() {}
+
+void Room::loadMobs(Common::SeekableReadStream &stream) {
+	debug("loadMobs %d", stream.pos());
+	static const uint8 MAX_MOBS = 64;
+	uint8 mobs[MAX_MOBS];
+	stream.read(&mobs, sizeof(mobs));
+	for(uint8 i = 0; i < sizeof(mobs); ++i) {
+		debug("mob %d flag %d", i, mobs[i]);
+	}
+}
+
+void Room::loadBackAnim(Common::SeekableReadStream &stream) {
+	debug("loadBackAnim %d", stream.pos());
+	static const uint8 MAX_BACK_ANIMS = 64;
+	uint32 backAnim[MAX_BACK_ANIMS];
+	debug("loadBackAnim sizeof %lu", sizeof(backAnim));
+	stream.read(backAnim, sizeof(backAnim));
+	for(uint8 i = 0; i < MAX_BACK_ANIMS; ++i) {
+		debug("back anim offset %d", backAnim[i]);
+	}
+}
+
+void Room::loadObj(Common::SeekableReadStream &stream) {}
+void Room::loadNak(Common::SeekableReadStream &stream) {}
+void Room::loadItemUse(Common::SeekableReadStream &stream) {}
+void Room::loadItemGive(Common::SeekableReadStream &stream) {}
+void Room::loadWalkTo(Common::SeekableReadStream &stream) {}
+void Room::loadExamine(Common::SeekableReadStream &stream) {}
+void Room::loadPickup(Common::SeekableReadStream &stream) {}
+void Room::loadUse(Common::SeekableReadStream &stream) {}
+void Room::loadPushOpen(Common::SeekableReadStream &stream) {}
+void Room::loadPullClose(Common::SeekableReadStream &stream) {}
+void Room::loadTalk(Common::SeekableReadStream &stream) {}
+void Room::loadGive(Common::SeekableReadStream &stream) {}
+
+void Room::nextLoadStep(Common::SeekableReadStream &stream, LoadingStep step) {
+	uint32 offset = stream.readUint32LE();
+	uint32 pos = stream.pos();
+	stream.seek(offset);
+
+	debug("nextLoadStep offset %d, pos %d", offset, pos);
+
+	(this->*step)(stream);
+
+	stream.seek(pos);
+}
+
+bool Room::loadFromStream(Common::SeekableReadStream &stream) {
+
+	uint32 pos = stream.pos();
+
+	nextLoadStep(stream, &Room::loadMobs);
+	nextLoadStep(stream, &Room::loadBackAnim);
+	nextLoadStep(stream, &Room::loadObj);
+	nextLoadStep(stream, &Room::loadNak);
+	nextLoadStep(stream, &Room::loadItemUse);
+	nextLoadStep(stream, &Room::loadItemGive);
+	nextLoadStep(stream, &Room::loadWalkTo);
+	nextLoadStep(stream, &Room::loadExamine);
+	nextLoadStep(stream, &Room::loadPickup);
+	nextLoadStep(stream, &Room::loadUse);
+	nextLoadStep(stream, &Room::loadPushOpen);
+	nextLoadStep(stream, &Room::loadPullClose);
+	nextLoadStep(stream, &Room::loadTalk);
+	nextLoadStep(stream, &Room::loadGive);
+
+	// skip some data for now
+	static const uint8 ROOM_ENTRY_SIZE = 64;
+	stream.seek(pos + ROOM_ENTRY_SIZE);
+
+	return true;;
+}
+
 Script::Script() : _data(nullptr), _dataSize(0) {
 }
 
@@ -59,6 +132,12 @@ bool Script::loadFromStream(Common::SeekableReadStream &stream) {
 		return false;
 
 	stream.read(_data, _dataSize);
+
+	Common::MemoryReadStream scriptDataStream(_data, _dataSize);
+	scriptDataStream.seek(getRoomTableOffset()+64);
+	debug("room table offset %d", scriptDataStream.pos());
+	Room room;
+	room.loadFromStream(scriptDataStream);
 	
 	return true;
 }
diff --git a/engines/prince/script.h b/engines/prince/script.h
index 8f139950be..d51e01b559 100644
--- a/engines/prince/script.h
+++ b/engines/prince/script.h
@@ -25,8 +25,7 @@
 
 #include "common/random.h"
 #include "common/endian.h"
-
-#include "audio/mixer.h"
+#include "common/array.h"
 
 #include "prince/flags.h"
 
@@ -45,6 +44,35 @@ namespace Detail {
 	template <> inline uint32 LittleEndianReader<uint32>(void *data) { return READ_LE_UINT32(data); }
 }
 
+class Room {
+public:
+	Room();
+
+	bool loadFromStream(Common::SeekableReadStream &stream);
+
+private:
+
+	typedef void (Room::*LoadingStep)(Common::SeekableReadStream &stream);
+
+	void nextLoadStep(Common::SeekableReadStream &stream, LoadingStep step);
+
+	void loadMobs(Common::SeekableReadStream &stream);
+	void loadBackAnim(Common::SeekableReadStream &stream);
+	void loadObj(Common::SeekableReadStream &stream);
+	void loadNak(Common::SeekableReadStream &stream);
+	void loadItemUse(Common::SeekableReadStream &stream);
+	void loadItemGive(Common::SeekableReadStream &stream);
+	void loadWalkTo(Common::SeekableReadStream &stream);
+	void loadExamine(Common::SeekableReadStream &stream);
+	void loadPickup(Common::SeekableReadStream &stream);
+	void loadUse(Common::SeekableReadStream &stream);
+	void loadPushOpen(Common::SeekableReadStream &stream);
+	void loadPullClose(Common::SeekableReadStream &stream);
+	void loadTalk(Common::SeekableReadStream &stream);
+	void loadGive(Common::SeekableReadStream &stream);
+};
+
+
 class Script {
 public:
 	Script();
@@ -69,6 +97,7 @@ public:
 private:
 	uint8 *_data;
 	uint32 _dataSize;
+	Common::Array<Room> _roomList;
 };
 
 class InterpreterFlags {
@@ -114,7 +143,7 @@ private:
 	static const uint32 _STACK_SIZE = 500;
 	uint32 _stack[_STACK_SIZE];
 	uint8 _stacktop;
-	uint8 _savedStacktop;
+	//uint8 _savedStacktop;
 	uint32 _waitFlag;
 
 	const byte *_string;
@@ -124,8 +153,6 @@ private:
 	// Helper functions
 	uint32 step(uint32 opcodePC);
 
-	void checkPC(uint32 address);
-
 	uint16 readScriptFlagValue();
 	Flags::Id readScriptFlagId();