Initial commit

engines/crab/TMX/TMXLayer.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/>.
+ *
+ */
+
+/*
+ * This code is based on the CRAB engine
+ *
+ * Copyright (c) Arvind Raja Yadav
+ *
+ * Licensed under MIT
+ *
+ */
+
+#include "crab/TMX/TMXLayer.h"
+
+namespace Crab {
+
+using namespace TMX;
+
+bool Layer::load(rapidxml::xml_node<char> *node) {
+	if (nodeValid(node))
+		return loadStr(_name, "name", node) && loadNum(_w, "width", node) && loadNum(_h, "height", node);
+
+	return false;
+}
+
+bool MapLayer::load(const Common::Path &path, rapidxml::xml_node<char> *node) {
+	if (Layer::load(node)) {
+		if (nodeValid("image", node, false)) {
+			_type = LAYER_IMAGE;
+			rapidxml::xml_node<char> *imgnode = node->first_node("image");
+
+			if (imgnode->first_attribute("source") != nullptr)
+				_img.load(path.append(imgnode->first_attribute("source")->value()));
+		} else {
+			_type = LAYER_NORMAL;
+			int i = 0;
+			Common::Array<TileInfo> t;
+
+			//.tmx stores tiles row-first
+			for (auto n = node->first_node("data")->first_node("tile"); n != nullptr; n = n->next_sibling("tile")) {
+				t.push_back(n);
+
+				if (++i >= _w) {
+					_tile.push_back(t);
+					t.clear();
+					i = 0;
+				}
+			}
+		}
+
+		// load properties associated with the layer, such as:
+		//  Is it a prop layer or not? If yes, the prop dimensions
+		//  The rate of scrolling of the layer, used for parallax scrolling
+		if (nodeValid("properties", node, false)) {
+			Common::String n, v;
+			for (auto p = node->first_node("properties")->first_node("property"); p != nullptr; p = p->next_sibling("property")) {
+				if (loadStr(n, "name", p) && loadStr(v, "value", p)) {
+					if (n == "prop" && v == "true")
+						_type = LAYER_PROP;
+					else if (n == "autohide" && v == "true")
+						_type = LAYER_AUTOHIDE;
+					else if (n == "autoshow" && v == "true")
+						_type = LAYER_AUTOSHOW;
+					else if (n == "x") {
+						_pos.x = stringToNumber<int>(v);
+					} else if (n == "y") {
+						_pos.y = stringToNumber<int>(v);
+					} else if (n == "w") {
+						_pos.w = stringToNumber<int>(v);
+					} else if (n == "h") {
+						_pos.h = stringToNumber<int>(v);
+					} else if (n == "scroll_rate_x") {
+						_rate.x = stringToNumber<float>(v);
+						_type = LAYER_PARALLAX;
+					} else if (n == "scroll_rate_y") {
+						_rate.y = stringToNumber<float>(v);
+						_type = LAYER_PARALLAX;
+					}
+				}
+			}
+		}
+
+		return true;
+	}
+
+	return false;
+}
+
+} // End of namespace Crab