HUGO: Split classes with multiple version in separate files

svn-id: r53152

1 files changed, 177 insertions, 0 deletions

diff --git a/engines/hugo/file_v2d.cpp b/engines/hugo/file_v2d.cpp
new file mode 100644
index 0000000000..43de3fac4c
--- /dev/null
+++ b/engines/hugo/file_v2d.cpp
@@ -0,0 +1,177 @@
+/* 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.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+/*
+ * This code is based on original Hugo Trilogy source code
+ *
+ * Copyright (c) 1989-1995 David P. Gray
+ *
+ */
+
+#include "common/system.h"
+
+#include "hugo/hugo.h"
+#include "hugo/file.h"
+#include "hugo/global.h"
+#include "hugo/schedule.h"
+#include "hugo/display.h"
+#include "hugo/util.h"
+
+namespace Hugo {
+FileManager_v2d::FileManager_v2d(HugoEngine &vm) : FileManager(vm) {
+}
+
+FileManager_v2d::~FileManager_v2d() {
+}
+
+void FileManager_v2d::openDatabaseFiles() {
+	debugC(1, kDebugFile, "openDatabaseFiles");
+
+	if (!_stringArchive.open(STRING_FILE))
+		Utils::Error(FILE_ERR, "%s", STRING_FILE);
+	if (!_sceneryArchive1.open("scenery.dat"))
+		Utils::Error(FILE_ERR, "%s", "scenery.dat");
+	if (!_objectsArchive.open(OBJECTS_FILE))
+		Utils::Error(FILE_ERR, "%s", OBJECTS_FILE);
+}
+
+void FileManager_v2d::closeDatabaseFiles() {
+	debugC(1, kDebugFile, "closeDatabaseFiles");
+
+	_stringArchive.close();
+	_sceneryArchive1.close();
+	_objectsArchive.close();
+}
+
+void FileManager_v2d::readBackground(int screenIndex) {
+// Read a PCX image into dib_a
+	debugC(1, kDebugFile, "readBackground(%d)", screenIndex);
+
+	_sceneryArchive1.seek((uint32) screenIndex * sizeof(sceneBlock_t), SEEK_SET);
+
+	sceneBlock_t sceneBlock;                        // Read a database header entry
+	sceneBlock.scene_off = _sceneryArchive1.readUint32LE();
+	sceneBlock.scene_len = _sceneryArchive1.readUint32LE();
+	sceneBlock.b_off = _sceneryArchive1.readUint32LE();
+	sceneBlock.b_len = _sceneryArchive1.readUint32LE();
+	sceneBlock.o_off = _sceneryArchive1.readUint32LE();
+	sceneBlock.o_len = _sceneryArchive1.readUint32LE();
+	sceneBlock.ob_off = _sceneryArchive1.readUint32LE();
+	sceneBlock.ob_len = _sceneryArchive1.readUint32LE();
+
+	_sceneryArchive1.seek(sceneBlock.scene_off, SEEK_SET);
+
+	// Read the image into dummy seq and static dib_a
+	seq_t dummySeq;                                 // Image sequence structure for Read_pcx
+	readPCX(_sceneryArchive1, &dummySeq, _vm.screen().getFrontBuffer(), true, _vm._screenNames[screenIndex]);
+}
+
+void FileManager_v2d::readOverlay(int screenNum, image_pt image, ovl_t overlayType) {
+// Open and read in an overlay file, close file
+	debugC(1, kDebugFile, "readOverlay(%d, ...)", screenNum);
+
+    image_pt tmpImage = image;                  // temp ptr to overlay file
+	_sceneryArchive1.seek((uint32)screenNum * sizeof(sceneBlock_t), SEEK_SET);
+
+	sceneBlock_t sceneBlock;                        // Database header entry
+	sceneBlock.scene_off = _sceneryArchive1.readUint32LE();
+	sceneBlock.scene_len = _sceneryArchive1.readUint32LE();
+	sceneBlock.b_off = _sceneryArchive1.readUint32LE();
+	sceneBlock.b_len = _sceneryArchive1.readUint32LE();
+	sceneBlock.o_off = _sceneryArchive1.readUint32LE();
+	sceneBlock.o_len = _sceneryArchive1.readUint32LE();
+	sceneBlock.ob_off = _sceneryArchive1.readUint32LE();
+	sceneBlock.ob_len = _sceneryArchive1.readUint32LE();
+
+	uint32 i = 0;
+	switch (overlayType) {
+	case BOUNDARY:
+		_sceneryArchive1.seek(sceneBlock.b_off, SEEK_SET);
+		i = sceneBlock.b_len;
+		break;
+	case OVERLAY:
+		_sceneryArchive1.seek(sceneBlock.o_off, SEEK_SET);
+		i = sceneBlock.o_len;
+		break;
+	case OVLBASE:
+		_sceneryArchive1.seek(sceneBlock.ob_off, SEEK_SET);
+		i = sceneBlock.ob_len;
+		break;
+	default:
+		Utils::Error(FILE_ERR, "%s", "Bad ovl_type");
+		break;
+	}
+	if (i == 0) {
+		for (i = 0; i < OVL_SIZE; i++)
+			image[i] = 0;
+		return;
+	}
+
+	// Read in the overlay file using MAC Packbits.  (We're not proud!)
+	int16 k = 0;                                    // byte count
+	do {
+		int8 data = _sceneryArchive1.readByte();    // Read a code byte
+		if ((byte)data == 0x80)                     // Noop
+			k = k;
+		else if (data >= 0) {                       // Copy next data+1 literally
+			for (i = 0; i <= (byte)data; i++, k++)
+				*tmpImage++ = _sceneryArchive1.readByte();
+		} else {                                    // Repeat next byte -data+1 times
+			int16 j = _sceneryArchive1.readByte();
+
+			for (i = 0; i < (byte)(-data + 1); i++, k++)
+				*tmpImage++ = j;
+		}
+	} while (k < OVL_SIZE);
+}
+
+char *FileManager_v2d::fetchString(int index) {
+// Fetch string from file, decode and return ptr to string in memory
+	debugC(1, kDebugFile, "fetchString(%d)", index);
+
+	// Get offset to string[index] (and next for length calculation)
+	_stringArchive.seek((uint32)index * sizeof(uint32), SEEK_SET);
+	uint32 off1, off2;
+	if (_stringArchive.read((char *)&off1, sizeof(uint32)) == 0)
+		Utils::Error(FILE_ERR, "%s", "String offset");
+	if (_stringArchive.read((char *)&off2, sizeof(uint32)) == 0)
+		Utils::Error(FILE_ERR, "%s", "String offset");
+
+	// Check size of string
+	if ((off2 - off1) >= MAX_BOX)
+		Utils::Error(FILE_ERR, "%s", "Fetched string too long!");
+
+	// Position to string and read it into gen purpose _textBoxBuffer
+	_stringArchive.seek(off1, SEEK_SET);
+	if (_stringArchive.read(_textBoxBuffer, (uint16)(off2 - off1)) == 0)
+		Utils::Error(FILE_ERR, "%s", "Fetch_string");
+
+	// Null terminate, decode and return it
+	_textBoxBuffer[off2-off1] = '\0';
+	_vm.scheduler().decodeString(_textBoxBuffer);
+	return _textBoxBuffer;
+}
+} // End of namespace Hugo
+