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TmxMap.cpp
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TmxMap.cpp
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//-----------------------------------------------------------------------------
// TmxMap.cpp
//
// Copyright (c) 2010-2014, Tamir Atias
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL TAMIR ATIAS BE LIABLE FOR ANY
// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: Tamir Atias
//-----------------------------------------------------------------------------
#include <tinyxml2.h>
#include <stdio.h>
#include "TmxMap.h"
#include "TmxTileset.h"
#include "TmxLayer.h"
#include "TmxTileLayer.h"
#include "TmxObjectGroup.h"
#include "TmxImageLayer.h"
#include "TmxGroupLayer.h"
using std::vector;
using std::string;
namespace Tmx
{
Map::Map()
: file_name()
, file_path()
, background_color()
, version(0.0)
, orientation(TMX_MO_ORTHOGONAL)
, render_order(TMX_RIGHT_DOWN)
, stagger_axis(TMX_SA_NONE)
, stagger_index(TMX_SI_NONE)
, width(0)
, height(0)
, tile_width(0)
, tile_height(0)
, next_object_id(0)
, hexside_length(0)
, layers()
, tile_layers()
, object_groups()
, group_layers()
, tilesets()
, has_error(false)
, error_code(0)
, error_text()
{}
Map::~Map()
{
// Iterate through all of the object groups and delete each of them.
vector< ObjectGroup* >::iterator ogIter;
for (ogIter = object_groups.begin(); ogIter != object_groups.end(); ++ogIter)
{
ObjectGroup *objectGroup = (*ogIter);
if (objectGroup)
{
delete objectGroup;
objectGroup = NULL;
}
}
// Iterate through all of the tile layers and delete each of them.
vector< TileLayer* >::iterator tlIter;
for (tlIter = tile_layers.begin(); tlIter != tile_layers.end(); ++tlIter)
{
TileLayer *layer = (*tlIter);
if (layer)
{
delete layer;
layer = NULL;
}
}
// Iterate through all of the image layers and delete each of them.
vector< ImageLayer* >::iterator ilIter;
for (ilIter = image_layers.begin(); ilIter != image_layers.end(); ++ilIter)
{
ImageLayer *layer = (*ilIter);
if (layer)
{
delete layer;
layer = NULL;
}
}
// Iterate through all of the tilesets and delete each of them.
vector< Tileset* >::iterator tsIter;
for (tsIter = tilesets.begin(); tsIter != tilesets.end(); ++tsIter)
{
Tileset *tileset = (*tsIter);
if (tileset)
{
delete tileset;
tileset = NULL;
}
}
vector< GroupLayer* >::iterator glIter;
for (glIter = group_layers.begin(); glIter != group_layers.end(); ++glIter)
{
GroupLayer *grouplayer = (*glIter);
if(grouplayer) {
delete grouplayer;
grouplayer = NULL;
}
}
}
void Map::ParseFile(const string &fileName)
{
file_name = fileName;
int lastSlash = fileName.find_last_of("/");
// Get the directory of the file using substring.
if (lastSlash > 0)
{
file_path = fileName.substr(0, lastSlash + 1);
}
else
{
file_path = "";
}
// Create a tiny xml document and use it to parse the text.
tinyxml2::XMLDocument doc;
doc.LoadFile( fileName.c_str() );
// Check for parsing errors.
if (doc.Error())
{
has_error = true;
error_code = TMX_PARSING_ERROR;
error_text = doc.ErrorStr();
return;
}
tinyxml2::XMLNode *mapNode = doc.FirstChildElement("map");
Parse( mapNode );
}
void Map::ParseText(const string &text)
{
// Create a tiny xml document and use it to parse the text.
tinyxml2::XMLDocument doc;
doc.Parse(text.c_str());
// Check for parsing errors.
if (doc.Error())
{
has_error = true;
error_code = TMX_PARSING_ERROR;
error_text = doc.ErrorStr();
return;
}
tinyxml2::XMLNode *mapNode = doc.FirstChildElement("map");
Parse( mapNode );
}
int Map::FindTilesetIndex(int gid) const
{
// Clean up the flags from the gid (thanks marwes91).
gid &= ~(FlippedHorizontallyFlag | FlippedVerticallyFlag | FlippedDiagonallyFlag);
for (int i = tilesets.size() - 1; i > -1; --i)
{
// If the gid beyond the tileset gid return its index.
if (gid >= tilesets[i]->GetFirstGid())
{
return i;
}
}
return -1;
}
const Tileset *Map::FindTileset(int gid) const
{
for (int i = tilesets.size() - 1; i > -1; --i)
{
// If the gid beyond the tileset gid return it.
if (gid >= tilesets[i]->GetFirstGid())
{
return tilesets[i];
}
}
return NULL;
}
void Map::Parse(tinyxml2::XMLNode *mapNode)
{
tinyxml2::XMLElement* mapElem = mapNode->ToElement();
// Read the map attributes.
version = mapElem->IntAttribute("version");
width = mapElem->IntAttribute("width");
height = mapElem->IntAttribute("height");
tile_width = mapElem->IntAttribute("tilewidth");
tile_height = mapElem->IntAttribute("tileheight");
next_object_id = mapElem->IntAttribute("nextobjectid");
if (mapElem->Attribute("backgroundcolor"))
{
background_color = Tmx::Color(mapElem->Attribute("backgroundcolor"));
}
// Read the orientation
std::string orientationStr = mapElem->Attribute("orientation");
if (!orientationStr.compare("orthogonal"))
{
orientation = TMX_MO_ORTHOGONAL;
}
else if (!orientationStr.compare("isometric"))
{
orientation = TMX_MO_ISOMETRIC;
}
else if (!orientationStr.compare("staggered"))
{
orientation = TMX_MO_STAGGERED;
}
else if (!orientationStr.compare("hexagonal"))
{
orientation = TMX_MO_HEXAGONAL;
}
// Read the render order
if (mapElem->Attribute("renderorder"))
{
std::string renderorderStr = mapElem->Attribute("renderorder");
if (!renderorderStr.compare("right-down"))
{
render_order = TMX_RIGHT_DOWN;
}
else if (!renderorderStr.compare("right-up"))
{
render_order = TMX_RIGHT_UP;
}
else if (!renderorderStr.compare("left-down"))
{
render_order = TMX_LEFT_DOWN;
}
else if (!renderorderStr.compare("left-down"))
{
render_order = TMX_LEFT_UP;
}
}
// Read the stagger axis
if (mapElem->Attribute("staggeraxis"))
{
std::string staggerAxisStr = mapElem->Attribute("staggeraxis");
if (!staggerAxisStr.compare("x"))
{
stagger_axis = TMX_SA_X;
}
else if (!staggerAxisStr.compare("y"))
{
stagger_axis = TMX_SA_Y;
}
}
// Read the stagger index
if (mapElem->Attribute("staggerindex"))
{
std::string staggerIndexStr = mapElem->Attribute("staggerindex");
if (!staggerIndexStr.compare("even"))
{
stagger_index = TMX_SI_EVEN;
}
else if (!staggerIndexStr.compare("odd"))
{
stagger_index = TMX_SI_ODD;
}
}
// read the hexside length
if (mapElem->IntAttribute("hexsidelength"))
{
hexside_length = mapElem->IntAttribute("hexsidelength");
}
// read all other attributes
const tinyxml2::XMLNode *node = mapElem->FirstChild();
while( node )
{
// Read the map properties.
if( strcmp( node->Value(), "properties" ) == 0 )
{
properties.Parse(node);
}
// Iterate through all of the tileset elements.
if( strcmp( node->Value(), "tileset" ) == 0 )
{
// Allocate a new tileset and parse it.
Tileset *tileset = new Tileset();
tileset->Parse(node->ToElement(), file_path);
// Add the tileset to the list.
tilesets.push_back(tileset);
}
// Iterate through all of the "layer" (tile layer) elements.
if( strcmp( node->Value(), "layer" ) == 0 )
{
// Allocate a new tile layer and parse it.
TileLayer *tileLayer = new TileLayer(this);
tileLayer->Parse(node);
// Add the tile layer to the lists.
tile_layers.push_back(tileLayer);
layers.push_back(tileLayer);
}
// Iterate through all of the "imagelayer" (image layer) elements.
if( strcmp( node->Value(), "imagelayer" ) == 0 )
{
// Allocate a new image layer and parse it.
ImageLayer *imageLayer = new ImageLayer(this);
imageLayer->Parse(node);
// Add the image layer to the lists.
image_layers.push_back(imageLayer);
layers.push_back(imageLayer);
}
// Iterate through all of the "objectgroup" (object layer) elements.
if( strcmp( node->Value(), "objectgroup" ) == 0 )
{
// Allocate a new object group and parse it.
ObjectGroup *objectGroup = new ObjectGroup(this);
objectGroup->Parse(node);
// Add the object group to the lists.
object_groups.push_back(objectGroup);
layers.push_back(objectGroup);
}
if( strcmp( node->Value(), "group") == 0 )
{
GroupLayer *groupLayer = new GroupLayer(this);
groupLayer->Parse(node);
// Add the group layer to the lists.
group_layers.push_back(groupLayer);
layers.push_back(groupLayer);
}
node = node->NextSibling();
}
}
}