From 3eeae12c498d1a4dbe969462d2ba841f77ee3ccb Mon Sep 17 00:00:00 2001
From: Andrei Karas <akaras@inbox.ru>
Date: Sun, 2 Jan 2011 01:48:38 +0200
Subject: Initial commit.

This code based on mana client http://www.gitorious.org/mana/mana
and my private repository.
---
 tools/tmxcopy/map.cpp | 679 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 679 insertions(+)
 create mode 100644 tools/tmxcopy/map.cpp

(limited to 'tools/tmxcopy/map.cpp')

diff --git a/tools/tmxcopy/map.cpp b/tools/tmxcopy/map.cpp
new file mode 100644
index 000000000..3e1f9bdaf
--- /dev/null
+++ b/tools/tmxcopy/map.cpp
@@ -0,0 +1,679 @@
+/*
+ *  TMXCopy
+ *  Copyright (C) 2007  Philipp Sehmisch
+ *  Copyright (C) 2009  Steve Cotton
+ *
+ *  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
+ *  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 <cstring>
+#include <iostream>
+#include <list>
+
+#include <string.h>
+#include <zlib.h>
+#include <cassert>
+#include <ctime>
+
+#include "xmlutils.h"
+#include "zlibutils.h"
+#include "base64.h"
+#include "tostring.h"
+
+#include "map.hpp"
+
+Map::Map(std::string filename):
+    mMaxGid(0)
+{
+    std::cout<<"Loading map "<<filename<<std::endl;
+    //load XML tree
+    mXmlDoc = xmlReadFile(filename.c_str(), NULL, 0);
+
+    if (!mXmlDoc)
+    {
+        std::cerr<<"Could not load "<<filename;
+        throw 1;
+    }
+
+    xmlNodePtr rootNode = xmlDocGetRootElement(mXmlDoc);
+
+    if (!rootNode || !xmlStrEqual(rootNode->name, BAD_CAST "map")) {
+        std::cerr<<filename<<"is not a Tiled map file!";
+        throw 1;
+    }
+
+    mWidth = XML::getProperty(rootNode, "width", 0);
+    mHeight = XML::getProperty(rootNode, "height", 0);
+    int layerNum = 0;
+    for_each_xml_child_node(node, rootNode)
+    {
+        if (xmlStrEqual(node->name, BAD_CAST "tileset"))
+        {
+            //add tilesets to vector of used tilesets
+            Tileset* tileset = new Tileset;
+            tileset->name = XML::getProperty(node, "name", "Unnamed");
+            tileset->tilewidth = XML::getProperty(node, "tilewidth", 0);
+            tileset->tileheight = XML::getProperty(node, "tileheight", 0);
+            tileset->firstgid = XML::getProperty(node, "firstgid", 0);
+            for_each_xml_child_node(imageNode, node)
+            {
+                if (xmlStrEqual(imageNode->name, BAD_CAST "image"))
+                tileset->imagefile = XML::getProperty(imageNode, "source", "");
+            }
+
+            //add tileset to tileset list
+            Map::mTilesets.push_back(tileset);
+        }
+    }
+
+    for_each_xml_child_node(node, rootNode)
+    {
+        if (xmlStrEqual(node->name, BAD_CAST "layer"))
+        {
+            //build layer information
+            std::string name = XML::getProperty(node, "name", "");
+            Layer* layer = new Layer(name, mWidth * mHeight);
+            if (
+                (mWidth  != XML::getProperty(node, "width" , 0)) ||
+                (mHeight != XML::getProperty(node, "height", 0)) ||
+                (0       != XML::getProperty(node, "x"     , 0)) ||
+                (0       != XML::getProperty(node, "y"     , 0)))
+            {
+                std::cerr<<"Error: layer size does not match map size for layer \""<<name<<"\" in "<<filename<<std::endl;
+                throw 1;
+            }
+
+            for_each_xml_child_node(dataNode, node)
+            {
+                if (!xmlStrEqual(dataNode->name, BAD_CAST "data")) continue;
+
+                std::string encoding = XML::getProperty(dataNode, "encoding", "");
+                std::string compression = XML::getProperty(dataNode, "compression", "");
+
+                if (encoding != "base64")
+                {
+                    std::cerr<<"Layers in "<<filename<<" are not base64 encoded!";
+                    return;
+                }
+
+                // Read base64 encoded map file
+                xmlNodePtr dataChild = dataNode->xmlChildrenNode;
+                if (!dataChild)
+                    continue;
+
+                int len = strlen((const char*)dataChild->content) + 1;
+                unsigned char *charData = new unsigned char[len + 1];
+                const char *charStart = (const char*)dataChild->content;
+                unsigned char *charIndex = charData;
+
+                while (*charStart) {
+                    if (*charStart != ' ' && *charStart != '\t' &&
+                            *charStart != '\n')
+                    {
+                        *charIndex = *charStart;
+                        charIndex++;
+                    }
+                    charStart++;
+                }
+                *charIndex = '\0';
+
+                int binLen;
+                unsigned char *binData =
+                    php3_base64_decode(charData, strlen((char*)charData), &binLen);
+
+                delete[] charData;
+
+                if (binData) {
+                    if (compression == "gzip")
+                    {
+                        unsigned char *inflated;
+                        unsigned int inflatedSize =
+                            inflateMemory(binData, binLen, inflated);
+                        free(binData);
+                        binData = inflated;
+                        binLen = inflatedSize;
+                        if (inflated == NULL)
+                        {
+                            std::cerr<<"Error: while decompressing layer "<<layerNum<<" in "<<filename;
+                            throw 1;
+                        }
+                    }
+
+                    int c = 0;
+                    for (int i = 0; i < binLen - 3; i += 4) {
+                        int gid = binData[i] |
+                            binData[i + 1] << 8 |
+                            binData[i + 2] << 16 |
+                            binData[i + 3] << 24;
+
+                        if (gid == 0)
+                        {
+                            layer->at(c).tileset = -1;
+                            layer->at(c).index = 0;
+                        }
+                        else
+                        {
+                            for (int s = mTilesets.size()-1; s >= 0; s--)
+                            {
+                                if (mTilesets.at(s)->firstgid <= gid)
+                                {
+                                    layer->at(c).tileset = s;
+                                    layer->at(c).index = gid - mTilesets.at(s)->firstgid;
+                                    if (mMaxGid < gid) mMaxGid = gid;
+                                    break;
+                                }
+                            }
+                        }
+
+                        c++;
+                    }
+                    free(binData);
+                } else {
+                    std::cerr<<"error processing layer data in "<<filename<<std::endl;
+                }
+            }
+            mLayers.push_back(layer);
+            layerNum++;
+        }
+    }
+
+    std::cout<<"tilesets: "<<mTilesets.size()<<std::endl;
+    std::cout<<"layers:"<<mLayers.size()<<std::endl;
+    std::cout<<"largest GID:"<<mMaxGid<<std::endl<<std::endl;
+}
+
+/**
+ * When copying tiles from another map, add new tilesets to this map, and return the translation table.
+ */
+std::map<int, int> Map::addAndTranslateTilesets(const Map* srcMap)
+{
+    std::map<int, int> translation;
+    translation[-1] = -1;
+    std::vector<Tileset*>* srcTilesets = const_cast<Map*>(srcMap)->getTilesets();
+
+    for (std::vector<Tileset*>::size_type a = 0; a < srcTilesets->size(); a++)
+    {
+        std::vector<Tileset*>::size_type b;
+        for (b = 0; b < mTilesets.size(); b++)
+        {
+            if (*srcTilesets->at(a) == *mTilesets.at(b))
+            {
+                break;
+            }
+        }
+        if (b == mTilesets.size())
+        {
+            mMaxGid += srcTilesets->at(a)->firstgid;
+            Tileset* destTileset = new Tileset(*srcTilesets->at(a));
+            destTileset->firstgid = mMaxGid;//it is possible to get some holes in the gid index this way but who cares, we got 32bit.
+            mTilesets.push_back(destTileset);
+        }
+        translation[a] = b;
+    }
+    return translation;
+}
+
+bool Map::overwrite(  Map* srcMap,
+                    int srcX, int srcY, int srcWidth, int srcHeight,
+                    int destX, int destY,
+                    const ConfigurationOptions& config)
+{
+    //plausibility check of coordinates
+    bool checkPassed = true;
+    if (srcX + srcWidth > srcMap->getWidth()) {
+        std::cerr<<"Error: Area exceeds right map border of source map!"<<std::endl;
+        checkPassed = false;
+    }
+    if (srcY + srcHeight > srcMap->getHeight()) {
+        std::cerr<<"Error: Area exceeds lower map border of source map!"<<std::endl;
+        checkPassed = false;
+    }
+    if (destX + srcWidth > mWidth) {
+        std::cerr<<"Error: Area exceeds right map border of target map!"<<std::endl;
+        checkPassed = false;
+    }
+    if (destY + srcHeight > mHeight) {
+        std::cerr<<"Error: Area exceeds lower map border of target map!"<<std::endl;
+        checkPassed = false;
+    }
+    if (!config.createMissingLayers)
+    {
+        if (config.copyLayersByOrdinal)
+        {
+            if (srcMap->getNumberOfLayers() > mLayers.size()) {
+                std::cerr<<"Error: Source has more layers than target map"<<std::endl
+                         <<"(and the command-line \"create layers\" option was not used)"<<std::endl;
+                checkPassed = false;
+            }
+        }
+        else
+        {
+            for (size_t i = 0; i < srcMap->getNumberOfLayers(); i++)
+            {
+                Layer* srcLayer = srcMap->getLayer(i);
+                Layer* destLayer = getLayer(srcLayer->getName());
+                if (!destLayer)
+                {
+                    std::cerr<<"Error: target map has no layer named \""<<srcLayer->getName()<<"\""<<std::endl
+                         <<"(and the command-line \"create layers\" option was not used)"<<std::endl;
+                    checkPassed = false;
+                }
+            }
+        }
+    }
+
+    if (!checkPassed) return false;
+
+    std::map<int, int> translation = addAndTranslateTilesets(srcMap);
+
+
+    //combining layer information
+    for (size_t i = 0; i < srcMap->getNumberOfLayers(); i++)
+    {
+        Layer* srcLayer = srcMap->getLayer(i);
+        Layer* destLayer = NULL;
+        if (config.copyLayersByOrdinal)
+        {
+            if (i < mLayers.size())
+            {
+                destLayer = mLayers.at(i);
+            }
+        }
+        else
+        {
+            destLayer = getLayer(srcLayer->getName());
+        }
+
+        if (!destLayer)
+        {
+            assert(config.createMissingLayers); /* Tested earlier, in the checkPassed section */
+            /* Generate a name for the new layer, which must be
+             * unique in the target map, and should be unique in
+             * the source map (to avoid collisions later in the
+             * copying process).
+             * Start by trying the name of the source layer.
+             */
+            std::string name = srcLayer->getName();
+            if (getLayer(name))
+            {
+                int k=0;
+                do
+                {
+                    name = "Layer" + toString(k);
+                    k++;
+                } while (getLayer(name) || srcMap->getLayer(name));
+            }
+
+            destLayer = new Layer(name, mWidth * mHeight);
+            mLayers.push_back(destLayer);
+            std::cout<<"Created new layer "<<name<<std::endl;
+        }
+
+        for (int y=0; y<srcHeight; y++)
+        {
+
+            for (int x=0; x<srcWidth; x++)
+            {
+                int srcIndex = srcMap->getWidth() * (y + srcY) + (x + srcX);
+                int tgtIndex = mWidth * (y + destY) + (x + destX);
+                Tile tmpTile = srcLayer->at(srcIndex);
+                tmpTile.tileset = translation[tmpTile.tileset];
+                destLayer->at(tgtIndex) = tmpTile;
+            }
+        }
+    }
+
+    std::clog<<"copying successful!"<<std::endl;
+    return true;
+}
+
+bool Map::randomFill(Map* templateMap, const std::string& destLayerName,
+            int destX, int destY, int destWidth, int destHeight,
+            const ConfigurationOptions& config)
+{
+    //plausibility check of coordinates
+    bool checkPassed = true;
+    if (destX + destWidth > mWidth)
+    {
+        std::cerr<<"Error: Area exceeds right map border of target map!"<<std::endl;
+        checkPassed = false;
+    }
+    if (destY + destHeight > mHeight)
+    {
+        std::cerr<<"Error: Area exceeds lower map border of target map!"<<std::endl;
+        checkPassed = false;
+    }
+    if (destWidth < templateMap->getWidth())
+    {
+        std::cerr<<"Error: Template is wider than target area"<<std::endl;
+        checkPassed = false;
+    }
+    if (destWidth < templateMap->getHeight())
+    {
+        std::cerr<<"Error: Template is higher than target area"<<std::endl;
+        checkPassed = false;
+    }
+    if (templateMap->getNumberOfLayers() == 0)
+    {
+        std::cerr<<"Error: Template has no layers"<<std::endl;
+        checkPassed = false;
+    }
+    if (!config.createMissingLayers && !getLayer(destLayerName))
+    {
+        std::cerr<<"Error: target map has no layer named \""<<destLayerName<<"\""<<std::endl
+             <<"(and the command-line \"create layers\" option was not used)"<<std::endl;
+        checkPassed = false;
+    }
+    if (!checkPassed) return false;
+
+    std::map<int, int> translation = addAndTranslateTilesets(templateMap);
+
+
+    Layer* destLayer = getLayer(destLayerName);
+    if (!destLayer)
+    {
+        destLayer = new Layer(destLayerName, mWidth * mHeight);
+        mLayers.push_back(destLayer);
+        std::cout<<"Created new layer "<<destLayerName<<std::endl;
+    }
+
+    /* Now generate extra tiles.
+     *
+     * After considering ways to specify the number of objects to add, I think
+     * the best user interface (without integrating it with Tiled) is to place
+     * a small number of objects each time, and have the user run the utility
+     * several times, reloading the map in Tiled each time until it looks
+     * right.  Simpler than typing magic numbers in at a command prompt.
+     *
+     * This algorithm completes after a fixed number of attempts at placing an
+     * object; regardless of how many attempts are successful.
+     * For 2x1 trees, destWidth*destHeight/10 is very sparse, dW*dH/2 is dense.
+     */
+    srand(time(NULL));
+    int patternsGenerated = 0;
+    int occupiedAreas = 0;
+    for (int i = destWidth*destHeight / 10; i > 0; i--)
+    {
+        /* Pick a random location, with enough tiles left and down from it to
+         * fit the template in (the +1 is because it starts on tile (x,y))
+         */
+        int x = destX + (rand() % (destWidth  - templateMap->getWidth () + 1));
+        int y = destY + (rand() % (destHeight - templateMap->getHeight() + 1));
+
+        bool areaIsClear = true;
+
+        for (int loop_y=0; loop_y<templateMap->getHeight(); loop_y++)
+        {
+            for (int loop_x=0; loop_x<templateMap->getWidth(); loop_x++)
+            {
+                if (! destLayer->getTile(x+loop_x, y+loop_y, mWidth).empty())
+                {
+                    areaIsClear = false;
+                }
+            }
+        }
+
+        if (areaIsClear)
+        {
+            int p = rand() % templateMap->getNumberOfLayers();
+
+            Layer* srcLayer = templateMap->getLayer(p);
+            for (int loop_y=0; loop_y<templateMap->getHeight(); loop_y++)
+            {
+                for (int loop_x=0; loop_x<templateMap->getWidth(); loop_x++)
+                {
+                    Tile& srcTile  = srcLayer->getTile(loop_x, loop_y, templateMap->getWidth());
+                    Tile& destTile = destLayer->getTile(x+loop_x, y+loop_y, mWidth);
+                    destTile.tileset = translation[srcTile.tileset];
+                    destTile.index = srcTile.index;
+                }
+            }
+            patternsGenerated++;
+        }
+        else
+        {
+            occupiedAreas++;
+        }
+    }
+
+    std::clog<<"Generated " << patternsGenerated << " new objects" <<std::endl;
+    (void) occupiedAreas;  // Unused at the moment, but keep it without a compiler warning about unused variables
+    return true;
+}
+
+bool Map::translateAllLayers(Map* templateMap, const std::string& destLayerName,
+            const ConfigurationOptions& config)
+{
+    bool checkPassed = true;
+    if (templateMap->getNumberOfLayers() != 2)
+    {
+        std::cerr<<"Error: template should have exactly 2 layers"<<std::endl;
+        checkPassed = false;
+    }
+    if (!config.createMissingLayers && !getLayer(destLayerName))
+    {
+        std::cerr<<"Error: target map has no layer named \""<<destLayerName<<"\""<<std::endl
+             <<"(and the command-line \"create layers\" option was not used)"<<std::endl;
+        checkPassed = false;
+    }
+    if (!checkPassed) return false;
+
+    //TODO This will unnecessarily add tilesets that are in the template but
+    //not used in the main map
+    std::map<int, int> tilesetTranslation = addAndTranslateTilesets(templateMap);
+
+    //Lacking a better name, we'll say this is translating visible layers to collision
+    std::map<Tile, Tile> collisionTranslation;
+
+    Layer* fromLayer = templateMap->getLayer(0);
+    Layer* toLayer = templateMap->getLayer(1);
+    for (int xy = (templateMap->getWidth() * templateMap->getHeight() -1);
+        xy >= 0; xy--)
+    {
+        Tile fromTile = fromLayer->at(xy);
+        Tile toTile = toLayer->at(xy);
+        if (!fromTile.empty())
+        {
+            fromTile.tileset = tilesetTranslation[fromTile.tileset];
+            toTile.tileset = tilesetTranslation[toTile.tileset];
+
+            collisionTranslation[fromTile] = toTile;
+        }
+    }
+
+    /* Now apply that template to the game map */
+    Layer* destLayer = getLayer(destLayerName);
+    if (!destLayer)
+    {
+        destLayer = new Layer(destLayerName, mWidth * mHeight);
+        mLayers.push_back(destLayer);
+        std::cout<<"Created new layer "<<destLayerName<<std::endl;
+    }
+
+    for (std::vector<Layer*>::iterator layer = mLayers.begin();
+         layer != mLayers.end();
+         layer++)
+    {
+        if ((*layer)->getName() == destLayerName)
+            continue;
+
+        for (int xy = mWidth * mHeight -1; xy >= 0; xy--)
+        {
+            Tile& fromTile = (*layer)->at(xy);
+            Tile& toTile = destLayer->at(xy);
+            std::map<Tile,Tile>::iterator iteratedTile = collisionTranslation.find(fromTile);
+
+            if (iteratedTile != collisionTranslation.end())
+            {
+                toTile = (*iteratedTile).second;
+            }
+        }
+
+    }
+
+    return true;
+}
+
+
+
+int Map::save(std::string filename)
+{
+    //remove old tileset and layer information in XML tree
+    xmlNodePtr rootNode = xmlDocGetRootElement(mXmlDoc);
+    std::list<xmlNodePtr> toRemove;
+    for_each_xml_child_node(node, rootNode)
+    {
+        if (    xmlStrEqual(node->name, BAD_CAST "tileset")
+            ||  xmlStrEqual(node->name, BAD_CAST "layer"))
+        {
+            toRemove.push_back(node);
+        }
+    }
+
+    while (!toRemove.empty())
+    {
+        xmlUnlinkNode(toRemove.back());
+        xmlFreeNode(toRemove.back());
+        toRemove.pop_back();
+    }
+
+    //TODO: reorganize GIDs
+
+    //add new tileset information to XML tree
+    for (size_t i = 0; i< mTilesets.size(); i++)
+    {
+        xmlNodePtr newNode;
+
+        xmlAddChild(rootNode, xmlNewDocText(mXmlDoc, BAD_CAST " "));
+        newNode = xmlNewNode(NULL, BAD_CAST "tileset");
+        xmlNewProp(newNode, BAD_CAST "name", BAD_CAST mTilesets.at(i)->name.c_str());
+        xmlNewProp(newNode, BAD_CAST "firstgid", BAD_CAST toString(mTilesets.at(i)->firstgid).c_str());
+        xmlNewProp(newNode, BAD_CAST "tilewidth", BAD_CAST toString(mTilesets.at(i)->tilewidth).c_str());
+        xmlNewProp(newNode, BAD_CAST "tileheight", BAD_CAST toString(mTilesets.at(i)->tileheight).c_str());
+        xmlAddChild(newNode, xmlNewDocText(mXmlDoc, BAD_CAST "\n  "));
+        xmlNodePtr imageNode = xmlNewNode(NULL, BAD_CAST "image");
+        xmlNewProp(imageNode, BAD_CAST "source", BAD_CAST mTilesets.at(i)->imagefile.c_str());
+        xmlAddChild(newNode, imageNode);
+        xmlAddChild(newNode, xmlNewDocText(mXmlDoc, BAD_CAST "\n "));
+        xmlAddChild(rootNode, newNode);
+        xmlAddChild(rootNode, xmlNewDocText(mXmlDoc, BAD_CAST "\n"));
+    }
+
+    //add new layer information to XML tree
+    for (size_t i = 0; i < mLayers.size(); i++)
+    {
+        //lay out layer information in binary
+        unsigned char* binData = (unsigned char*)malloc(mWidth * mHeight * 4);
+
+        for (int a=0; a < mWidth * mHeight; a++)
+        {
+            Tile tile = mLayers.at(i)->at(a);
+            int ldata;
+            if (tile.tileset != -1)
+            {
+                ldata = tile.index + mTilesets.at(tile.tileset)->firstgid;
+            } else {
+                ldata = 0;
+            }
+
+            binData[a * 4 + 0] = (ldata & 0x000000ff);
+            binData[a * 4 + 1] = (ldata & 0x0000ff00) >> 8;
+            binData[a * 4 + 2] = (ldata & 0x00ff0000) >> 16;
+            binData[a * 4 + 3] = (ldata & 0xff000000) >> 24;
+        }
+
+
+        //GZIP layer information
+        /*
+        unsigned char* gzipData = (unsigned char*)malloc((mWidth * mHeight * 4) + 128);
+        unsigned int gzipLen;
+        compressMemory (binData, (mWidth * mHeight * 4) + 128, gzipData, gzipLen);
+        free (binData);
+        std::cout<<"GZIP length: "<<gzipLen<<std::endl;
+        */
+
+        //encode layer information in base64
+        unsigned char* base64Data;
+        int base64len;
+        //base64Data = php3_base64_encode(gzipData, gzipLen, &base64len);
+        base64Data = php3_base64_encode(binData, (mWidth * mHeight * 4), &base64len);
+        //free(gzipData);
+
+        xmlNodePtr newNode;
+        xmlAddChild(rootNode, xmlNewDocText(mXmlDoc, BAD_CAST " "));
+        newNode = xmlNewNode(NULL, BAD_CAST "layer");
+        xmlNewProp(newNode, BAD_CAST "name", BAD_CAST (mLayers.at(i)->getName()).c_str());
+        xmlNewProp(newNode, BAD_CAST "width", BAD_CAST toString(mWidth).c_str());
+        xmlNewProp(newNode, BAD_CAST "height", BAD_CAST toString(mHeight).c_str());
+        xmlAddChild(newNode, xmlNewDocText(mXmlDoc, BAD_CAST "\n  "));
+        xmlNodePtr dataNode = xmlNewNode(NULL, BAD_CAST "data");
+        xmlNewProp(dataNode, BAD_CAST "encoding", BAD_CAST "base64");
+        //xmlNewProp(dataNode, BAD_CAST "compression", BAD_CAST "gzip");
+        xmlAddChild(dataNode, xmlNewDocText(mXmlDoc, BAD_CAST "\n   "));
+        xmlAddChild(dataNode, xmlNewDocText(mXmlDoc, BAD_CAST base64Data));
+        xmlAddChild(dataNode, xmlNewDocText(mXmlDoc, BAD_CAST "\n  "));
+        xmlAddChild(newNode, dataNode);
+        xmlAddChild(newNode, xmlNewDocText(mXmlDoc, BAD_CAST "\n "));
+        xmlAddChild(rootNode, newNode);
+        xmlAddChild(rootNode, xmlNewDocText(mXmlDoc, BAD_CAST "\n"));
+
+        free(base64Data);
+        free(binData);
+    }
+
+    //save XML tree
+    int retval = xmlSaveFile(filename.c_str(), mXmlDoc);
+
+    if (retval == -1)
+    {
+        std::cerr<<"Could not write outfile "<<filename<<std::endl;
+        return false;
+    }
+    else
+    {
+        std::cout<<"File saved successfully to "<<filename<<std::endl;
+        return true;
+    }
+}
+
+Layer* Map::getLayer(std::string name)
+{
+    for (std::vector<Layer*>::iterator layer = mLayers.begin();
+         layer != mLayers.end();
+         layer++)
+    {
+        if ((*layer)->getName() == name)
+            return *layer;
+    }
+    return NULL;
+}
+
+Map::~Map()
+{
+    for (std::vector<Layer*>::iterator layer = mLayers.begin();
+         layer != mLayers.end();
+         layer++)
+    {
+         delete *layer;
+    }
+
+    for (std::vector<Tileset*>::iterator tileset = mTilesets.begin();
+         tileset != mTilesets.end();
+         tileset++)
+    {
+         delete *tileset;
+    }
+
+    xmlFreeDoc(mXmlDoc);
+}
-- 
cgit v1.2.3-70-g09d2