DRAGONS: Adding class for loading dragon.img file data

engines/dragons/dragonimg.cpp

@@ -0,0 +1,62 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+#include <common/memstream.h>
+#include "dragonimg.h"
+#include "bigfile.h"
+
+namespace Dragons {
+
+DragonIMG::DragonIMG(BigfileArchive *bigfileArchive) {
+	uint32 fileSize;
+	byte *iptData = bigfileArchive->load("dragon.ipt", fileSize);
+	Common::SeekableReadStream *iptReadStream = new Common::MemoryReadStream(iptData, fileSize, DisposeAfterUse::YES);
+
+	_count = fileSize / 4;
+
+	byte *imgData = bigfileArchive->load("dragon.img", fileSize);
+	Common::SeekableReadStream *imgReadStream = new Common::MemoryReadStream(imgData, fileSize, DisposeAfterUse::YES);
+
+
+	_imgObjects = new IMG[_count];
+
+	for(int i=0; i < _count; i++) {
+		imgReadStream->seek(iptReadStream->readUint32LE());
+		_imgObjects[i].field_0 = imgReadStream->readUint16LE();
+		_imgObjects[i].field_2 = imgReadStream->readUint16LE();
+		_imgObjects[i].field_4 = imgReadStream->readUint16LE();
+		_imgObjects[i].field_6 = imgReadStream->readUint16LE();
+		_imgObjects[i].field_8 = imgReadStream->readUint16LE();
+		_imgObjects[i].field_a = imgReadStream->readUint16LE();
+		_imgObjects[i].field_c = imgReadStream->readUint16LE();
+		_imgObjects[i].field_e = imgReadStream->readUint16LE();
+	}
+}
+
+IMG *DragonIMG::getIMG(uint32 iptId) {
+	iptId &= 0xffff;
+	assert(iptId > 1);
+	assert(iptId < _count);
+	return &_imgObjects[iptId];
+}
+
+
+} // End of namespace Dragons

engines/dragons/dragonimg.h

@@ -0,0 +1,53 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+#ifndef SCUMMVM_DRAGONIMG_H
+#define SCUMMVM_DRAGONIMG_H
+
+#include "common/system.h"
+
+namespace Dragons {
+
+struct IMG {
+	uint16 field_0;
+	uint16 field_2;
+	uint16 field_4;
+	uint16 field_6;
+	uint16 field_8;
+	uint16 field_a;
+	uint16 field_c;
+	uint16 field_e;
+};
+
+class BigfileArchive;
+
+class DragonIMG {
+private:
+	int16 _count;
+	IMG *_imgObjects;
+public:
+	DragonIMG(BigfileArchive *bigfileArchive);
+	IMG *getIMG(uint32 iptId);
+};
+
+} // End of namespace Dragons
+
+#endif //SCUMMVM_DRAGONIMG_H

engines/dragons/dragons.cpp

@@ -28,6 +28,7 @@
 #include "background.h"
 #include "bigfile.h"
 #include "dragonflg.h"
+#include "dragonimg.h"
 #include "dragonini.h"
 #include "dragonobd.h"
 #include "dragonrms.h"
@@ -84,6 +85,7 @@ Common::Error DragonsEngine::run() {
 	_screen = new Screen();
 	_bigfileArchive = new BigfileArchive("bigfile.dat", Common::Language::EN_ANY);
 	_dragonFLG = new DragonFLG(_bigfileArchive);
+	_dragonIMG = new DragonIMG(_bigfileArchive);
 	_dragonOBD = new DragonOBD(_bigfileArchive);
 	_dragonRMS = new DragonRMS(_bigfileArchive, _dragonOBD);
 	_dragonVAR = new DragonVAR(_bigfileArchive);
@@ -127,6 +129,7 @@ Common::Error DragonsEngine::run() {
 	delete _actorManager;
 	delete _backgroundResourceLoader;
 	delete _dragonFLG;
+	delete _dragonIMG;
 	delete _dragonRMS;
 	delete _dragonVAR;
 	delete _bigfileArchive;
@@ -171,7 +174,10 @@ void DragonsEngine::gameLoop() {
 		}
 
 		if (flickerIni->sceneId == getCurrentSceneId()) {
-			debug("get here");
+			uint16 id = getIniFromImg();
+			if (id != 0) {
+				error("todo 0x80026cb0 run script");
+			}
 		}
 		_scene->draw();
 		_screen->updateScreen();
@@ -361,4 +367,28 @@ void DragonsEngine::setVar(uint16 offset, uint16 value) {
 	return _dragonVAR->setVar(offset, value);
 }
 
+uint16 DragonsEngine::getIniFromImg() {
+	DragonINI *flicker = _dragonINIResource->getFlickerRecord();
+
+	int16 x = flicker->actor->x_pos / 32;
+	int16 y = flicker->actor->y_pos / 8;
+
+	uint16 currentSceneId = _scene->getSceneId();
+
+	for(uint16 i = 0; i < _dragonINIResource->totalRecords(); i++) {
+		DragonINI *ini = getINI(i);
+		if (ini->sceneId == currentSceneId && ini->field_1a_flags_maybe == 0) {
+			IMG *img = _dragonIMG->getIMG(ini->field_2);
+			if (x >= img->field_0 &&
+			img->field_0 + img->field_4 >= x &&
+			y >= img->field_2 &&
+			img->field_6 + img->field_2 >= y) {
+				return i + 1;
+			}
+		}
+
+	}
+	return 0;
+}
+
 } // End of namespace Dragons

engines/dragons/dragons.h

@@ -82,6 +82,7 @@ enum UnkFlags {
 class BigfileArchive;
 class BackgroundResourceLoader;
 class DragonFLG;
+class DragonIMG;
 class DragonOBD;
 class DragonRMS;
 class DragonVAR;
@@ -96,6 +97,7 @@ struct DragonINI;
 class DragonsEngine : public Engine {
 public:
 	DragonOBD *_dragonOBD;
+	DragonIMG *_dragonIMG;
 	ActorManager *_actorManager;
 	DragonINIResource *_dragonINIResource;
 private:
@@ -146,6 +148,7 @@ private:
 	void updateHandler();
 	uint32 calulateTimeLeft();
 	void wait();
+	uint16 getIniFromImg();
 };
 
 DragonsEngine *getEngine();

engines/dragons/module.mk

@@ -7,6 +7,7 @@ MODULE_OBJS := \
     bigfile.o \
 	detection.o \
     dragonflg.o \
+    dragonimg.o \
     dragonini.o \
     dragonobd.o \
     dragonrms.o \