Initial commit

engines/cine/bg_list.cpp

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+/* 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+
+#include "common/endian.h"
+#include "common/stream.h"
+
+#include "cine/cine.h"
+#include "cine/main_loop.h"
+#include "cine/object.h"
+#include "cine/various.h"
+#include "cine/bg_list.h"
+
+namespace Cine {
+
+uint32 var8;
+
+/**
+ * Add masked sprite to the background
+ * @param objIdx Sprite description
+ */
+void addToBGList(int16 objIdx) {
+	createBgIncrustListElement(objIdx, 0);
+
+	renderer->incrustSprite(g_cine->_bgIncrustList.back());
+}
+
+/**
+ * Add filled sprite to the background
+ * @param objIdx Sprite description
+ */
+void addSpriteFilledToBGList(int16 objIdx) {
+	createBgIncrustListElement(objIdx, 1);
+
+	renderer->incrustMask(g_cine->_bgIncrustList.back());
+}
+
+void removeBgIncrustsWithBgIdx(int16 bgIdx) {
+	Common::List<BGIncrust>::iterator it;
+	for (it = g_cine->_bgIncrustList.begin(); it != g_cine->_bgIncrustList.end();) {
+		if (it->bgIdx == bgIdx) {
+			it = g_cine->_bgIncrustList.erase(it);
+		} else {
+			++it;
+		}
+	}
+}
+
+/**
+ * Add new element to incrust list
+ * @param objIdx Element description
+ * @param param Type of element
+ */
+void createBgIncrustListElement(int16 objIdx, int16 param) {
+	BGIncrust tmp;
+
+	tmp.unkPtr = nullptr;
+	tmp.objIdx = objIdx;
+	tmp.param = param;
+	tmp.x = g_cine->_objectTable[objIdx].x;
+	tmp.y = g_cine->_objectTable[objIdx].y;
+	tmp.frame = g_cine->_objectTable[objIdx].frame;
+	tmp.part = g_cine->_objectTable[objIdx].part & 0x0f;
+	tmp.bgIdx = renderer->currentBg();
+
+	g_cine->_bgIncrustList.push_back(tmp);
+}
+
+/**
+ * Reset var8 (probably something related to bgIncrustList)
+ */
+void resetBgIncrustList() {
+	var8 = 0;
+}
+
+/**
+ * Restore incrust list from savefile
+ * @param fHandle Savefile open for reading
+ */
+void loadBgIncrustFromSave(Common::SeekableReadStream &fHandle, bool hasBgIdx) {
+	BGIncrust tmp;
+	int size = fHandle.readSint16BE();
+
+	for (int i = 0; i < size; i++) {
+		fHandle.readUint32BE();
+		fHandle.readUint32BE();
+
+		tmp.unkPtr = nullptr;
+		tmp.objIdx = fHandle.readUint16BE();
+		tmp.param = fHandle.readUint16BE();
+		tmp.x = fHandle.readUint16BE();
+		tmp.y = fHandle.readUint16BE();
+		tmp.frame = fHandle.readUint16BE();
+		tmp.part = fHandle.readUint16BE();
+		tmp.bgIdx = (hasBgIdx ? fHandle.readUint16BE() : 0);
+
+		g_cine->_bgIncrustList.push_back(tmp);
+
+		if (tmp.param == 0) {
+			renderer->incrustSprite(tmp);
+		} else {
+			renderer->incrustMask(tmp);
+		}
+	}
+}
+
+} // End of namespace Cine