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Diffstat (limited to 'engines/hugo/file_v1w.cpp')
-rw-r--r-- | engines/hugo/file_v1w.cpp | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/engines/hugo/file_v1w.cpp b/engines/hugo/file_v1w.cpp new file mode 100644 index 0000000000..6ab21a853e --- /dev/null +++ b/engines/hugo/file_v1w.cpp @@ -0,0 +1,90 @@ +/* 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/util.h" + +namespace Hugo { +FileManager_v1w::FileManager_v1w(HugoEngine &vm) : FileManager_v2d(vm) { +} + +FileManager_v1w::~FileManager_v1w() { +} + +void FileManager_v1w::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; + } + _sceneryArchive1.read(tmpImage, OVL_SIZE); +} + +} // End of namespace Hugo + |