Added my tmxcopy tool for copying parts of maps to other maps.

1 files changed, 371 insertions, 0 deletions

diff --git a/tools/tmxcopy/map.cpp b/tools/tmxcopy/map.cpp
new file mode 100644
index 00000000..0674ae1a
--- /dev/null
+++ b/tools/tmxcopy/map.cpp
@@ -0,0 +1,371 @@
+/*
+ *  TMXCopy
+ *  Copyright 2007 Philipp Sehmisch
+ *
+ *
+ *  TMXCopy 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.
+ *
+ *  TMXCopy 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 TMXCopy; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <iostream>
+#include <map>
+#include <list>
+
+#include <zlib.h>
+
+#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"))
+        {
+            Layer* layer = new Layer;
+            layer->resize(mWidth * mHeight);
+            //build layer information
+            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;
+}
+
+bool Map::overwrite(  Map* srcMap,
+                    int srcX, int srcY, int srcWidth, int srcHeight,
+                    int destX, int destY)
+{
+    //plausibility check of coordinates
+    bool checkPassed = true;
+    if (srcX + srcWidth > srcMap->getWidth()) {
+        std::cerr<<"Error: Area exceeds right map border of source map!";
+        checkPassed = false;
+    }
+    if (srcY + srcHeight > srcMap->getHeight()) {
+        std::cerr<<"Error: Area exceeds lower map border of source map!";
+        checkPassed = false;
+    }
+    if (destX + srcWidth > mWidth) {
+        std::cerr<<"Error: Area exceeds right map border of target map!";
+        checkPassed = false;
+    }
+    if (destY + srcHeight > mHeight) {
+        std::cerr<<"Error: Area exceeds lower map border of target map!";
+        checkPassed = false;
+    }
+    if (!checkPassed) return false;
+
+    std::map<int, int> translation;
+    translation[-1] = -1;
+    std::vector<Tileset*>* srcTilesets = srcMap->getTilesets();
+
+    //add new tilesets and add redundant tilesets to list of redundand tilesets
+    for (int a = 0; a < srcTilesets->size(); a++)
+    {
+        int 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;
+            srcTilesets->at(a)->firstgid = mMaxGid;//it is possible to get some holes in the gid index this way but who cares, we got 32bit.
+            mTilesets.push_back(srcTilesets->at(a));
+        }
+        translation[a] = b;
+    }
+
+    //combining layer information
+    for (int i = 0; i < srcMap->getNumberOfLayers(); i++)
+    {
+        Layer* srcLayer = srcMap->getLayer(i);
+        Layer* destLayer = mLayers.at(i);
+
+        for (int y=0; y<srcWidth; y++)
+        {
+
+            for (int x=0; x<srcHeight; 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;
+}
+
+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 (int 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 (int 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
+        // Doesn't work yet.
+        /*
+        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 ("Layer" + toString(i)).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"));
+    }
+
+    //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;
+    }
+}