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	diff --git a/src/Game.cpp b/src/Game.cpp
	index 455909a..2efcb2e 100644
	--- a/src/Game.cpp
	+++ b/src/Game.cpp
	@@ -1,2330 +1,2333 @@
	/*
	* Copyright (C) 2011-2013 Me and My Shadow
	*
	* This file is part of Me and My Shadow.
	*
	* Me and My Shadow 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.
	*
	* Me and My Shadow 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 Me and My Shadow. If not, see <http://www.gnu.org/licenses/>.
	*/

	#include "Block.h"
	#include "GameState.h"
	#include "Functions.h"
	#include "Settings.h"
	#include "GameObjects.h"
	#include "ThemeManager.h"
	#include "Game.h"
	#include "WordWrapper.h"
	#include "LevelEditor.h"
	#include "TreeStorageNode.h"
	#include "POASerializer.h"
	#include "InputManager.h"
	#include "MusicManager.h"
	#include "Render.h"
	#include "StatisticsManager.h"
	#include "ScriptExecutor.h"
	#include "ScriptDelayExecution.h"
	#include "MD5.h"
	#include <fstream>
	#include <iostream>
	#include <sstream>
	#include <vector>
	#include <map>
	#include <algorithm>
	#include <assert.h>
	#include <stdio.h>
	#include <string.h>
	#include <SDL_ttf_fontfallback.h>

	#include "libs/tinyformat/tinyformat.h"

	using namespace std;

	const char* Game::blockName[TYPE_MAX]={"Block","PlayerStart","ShadowStart",
	"Exit","ShadowBlock","Spikes",
	"Checkpoint","Swap","Fragile",
	"MovingBlock","MovingShadowBlock","MovingSpikes",
	"Teleporter","Button","Switch",
	"ConveyorBelt","ShadowConveyorBelt","NotificationBlock", "Collectable", "Pushable"
	};

	map<string,int> Game::blockNameMap;
	map<int,string> Game::gameObjectEventTypeMap;
	map<string,int> Game::gameObjectEventNameMap;
	map<int,string> Game::levelEventTypeMap;
	map<string,int> Game::levelEventNameMap;
	string Game::recordFile;

	set<string> Game::survivalistLevels;
	string Game::survivalistLevel2;

	//An internal function.
	static void copyCompiledScripts(lua_State *state, const std::map<int, int>& src, std::map<int, int>& dest) {
	//Clear the existing scripts.
	for (auto it = dest.begin(); it != dest.end(); ++it) {
	luaL_unref(state, LUA_REGISTRYINDEX, it->second);
	}
	dest.clear();

	//Copy the source to the destination.
	for (auto it = src.begin(); it != src.end(); ++it) {
	lua_rawgeti(state, LUA_REGISTRYINDEX, it->second);
	dest[it->first] = luaL_ref(state, LUA_REGISTRYINDEX);
	}
	}

	//An internal function.
	static void copyLevelObjects(const std::vector<Block>& src, std::vector<Block>& dest, bool setActive) {
	//Clear the existing objects.
	for (auto o : dest) delete o;
	dest.clear();

	//Copy the source to the destination.
	for (auto o : src) {
	if (o == NULL \|\| o->isDelete) continue;
	Block* o2 = new Block(*o);
	dest.push_back(o2);
	if (setActive) o2->setActive();
	}
	}

	Game::Game(SDL_Renderer &renderer, ImageManager &imageManager):isReset(false)
	, scriptExecutor(new ScriptExecutor())
	,currentLevelNode(NULL)
	,customTheme(NULL)
	,background(NULL)
	, levelRect(SDL_Rect{ 0, 0, 0, 0 }), levelRectInitial(SDL_Rect{ 0, 0, 0, 0 })
	, arcade(false)
	,won(false)
	,interlevel(false)
	,time(0)
	,recordings(0)
	,cameraMode(CAMERA_PLAYER)
	,player(this),shadow(this),objLastCheckPoint(NULL)
	, currentCollectables(0), currentCollectablesInitial(0)
	, totalCollectables(0), totalCollectablesInitial(0)
	{
	levelRectSaved = SDL_Rect{ 0, 0, 0, 0 };
	timeSaved = 0;
	recordingsSaved = 0;
	cameraModeSaved = (int)CAMERA_PLAYER;
	currentCollectablesSaved = 0;
	totalCollectablesSaved = 0;

	scriptSaveState = LUA_REFNIL;
	scriptExecutorSaved.savedDelayExecutionObjects = NULL;

	saveStateNextTime=false;
	loadStateNextTime=false;

	recentSwap=recentSwapSaved=-10000;
	recentLoad=recentSave=0;

	action=imageManager.loadTexture(getDataPath()+"gfx/actions.png", renderer);
	medals=imageManager.loadTexture(getDataPath()+"gfx/medals.png", renderer);
	//Get the collectable image from the theme.
	//NOTE: Isn't there a better way to retrieve the image?
	objThemes.getBlock(TYPE_COLLECTABLE)->createInstance(&collectable);

	//Hide the cursor if not in the leveleditor.
	if(stateID!=STATE_LEVEL_EDITOR)
	SDL_ShowCursor(SDL_DISABLE);
	}

	Game::~Game(){
	//Simply call our destroy method.
	destroy();

	//Before we leave make sure the cursor is visible.
	SDL_ShowCursor(SDL_ENABLE);
	}

	GameSaveState::GameSaveState() {
	gameSaved.scriptSaveState = LUA_REFNIL;
	gameSaved.scriptExecutorSaved.savedDelayExecutionObjects = NULL;
	}

	GameSaveState::~GameSaveState() {
	//Simply call our destroy method.
	destroy();
	}

	void GameSaveState::destroy() {
	lua_State *state = NULL;

	if (auto game = dynamic_cast<Game*>(currentState)) {
	if (auto se = game->getScriptExecutor()) {
	state = se->getLuaState();
	}
	}

	//Delete script related stuff.
	if (state) {
	//Delete the compiledScripts.
	for (auto it = gameSaved.savedCompiledScripts.begin(); it != gameSaved.savedCompiledScripts.end(); ++it) {
	luaL_unref(state, LUA_REGISTRYINDEX, it->second);
	}

	//Delete the script save state.
	luaL_unref(state, LUA_REGISTRYINDEX, gameSaved.scriptSaveState);

	//Sanity check.
	assert(gameSaved.scriptExecutorSaved.savedDelayExecutionObjects == NULL \|\| gameSaved.scriptExecutorSaved.savedDelayExecutionObjects->state == state);
	} else {
	if (gameSaved.scriptExecutorSaved.savedDelayExecutionObjects) {
	// Set the state to NULL since the state is already destroyed. This prevents the destructor to call luaL_unref.
	gameSaved.scriptExecutorSaved.savedDelayExecutionObjects->state = NULL;
	}
	}

	gameSaved.savedCompiledScripts.clear();
	gameSaved.scriptSaveState = LUA_REFNIL;

	delete gameSaved.scriptExecutorSaved.savedDelayExecutionObjects;
	gameSaved.scriptExecutorSaved.savedDelayExecutionObjects = NULL;

	for (auto o : gameSaved.levelObjectsSave) delete o;
	gameSaved.levelObjectsSave.clear();
	}

	void Game::destroy(){
	delete scriptExecutor;
	scriptExecutor = NULL;

	if (scriptExecutorSaved.savedDelayExecutionObjects) {
	// Set the state to NULL since the state is already destroyed. This prevents the destructor to call luaL_unref.
	scriptExecutorSaved.savedDelayExecutionObjects->state = NULL;
	delete scriptExecutorSaved.savedDelayExecutionObjects;
	scriptExecutorSaved.savedDelayExecutionObjects = NULL;
	}

	//Loop through the levelObjects, etc. and delete them.
	for (auto o : levelObjects) delete o;
	levelObjects.clear();

	for (auto o : levelObjectsSave) delete o;
	levelObjectsSave.clear();

	for (auto o : levelObjectsInitial) delete o;
	levelObjectsInitial.clear();

	//Loop through the sceneryLayers and delete them.
	for(auto it=sceneryLayers.begin();it!=sceneryLayers.end();++it){
	delete it->second;
	}
	sceneryLayers.clear();

	//Clear the name and the editor data.
	levelName.clear();
	levelFile.clear();
	scriptFile.clear();
	editorData.clear();

	//Remove everything from the themeManager.
	background=NULL;
	if(customTheme)
	objThemes.removeTheme();
	customTheme=NULL;
	//If there's a (partial) theme bundled with the levelpack remove that as well.
	if(levels->customTheme)
	objThemes.removeTheme();

	//delete current level (if any)
	if(currentLevelNode){
	delete currentLevelNode;
	currentLevelNode=NULL;
	}

	//Reset the time.
	time=timeSaved=0;
	recordings=recordingsSaved=0;
	recentSwap=recentSwapSaved=-10000;

	//Set the music list back to the configured list.
	getMusicManager()->setMusicList(getSettings()->getValue("musiclist"));
	}

	void Game::reloadMusic() {
	//NOTE: level music is always enabled.

	//Check if the levelpack has a prefered music list.
	if (levels && !levels->levelpackMusicList.empty())
	getMusicManager()->setMusicList(levels->levelpackMusicList);

	//Check for the music to use.
	string &s = editorData["music"];
	if (!s.empty()) {
	getMusicManager()->playMusic(s);
	} else {
	getMusicManager()->pickMusic();
	}
	}

	void Game::loadLevelFromNode(ImageManager& imageManager, SDL_Renderer& renderer, TreeStorageNode* obj, const string& fileName, const std::string& scriptFileName){
	//Make sure there's nothing left from any previous levels.
	assert(levelObjects.empty() && levelObjectsSave.empty() && levelObjectsInitial.empty());

	//set current level to loaded one.
	currentLevelNode=obj;

	//Set the level dimensions to the default, it will probably be changed by the editorData,
	//but 800x600 is a fallback.
	levelRect = levelRectSaved = levelRectInitial = SDL_Rect{ 0, 0, 800, 600 };

	currentCollectables = currentCollectablesSaved = currentCollectablesInitial = 0;
	totalCollectables = totalCollectablesSaved = totalCollectablesInitial = 0;

	//Load the additional data.
	for(map<string,vector<string> >::iterator i=obj->attributes.begin();i!=obj->attributes.end();++i){
	if(i->first=="size"){
	//We found the size attribute.
	if(i->second.size()>=2){
	//Set the dimensions of the level.
	int w = atoi(i->second[0].c_str()), h = atoi(i->second[1].c_str());
	levelRect = levelRectSaved = levelRectInitial = SDL_Rect{ 0, 0, w, h };
	}
	}else if(i->second.size()>0){
	//Any other data will be put into the editorData.
	editorData[i->first]=i->second[0];
	}
	}

	//Get the arcade property.
	{
	string &s = editorData["arcade"];
	arcade = atoi(s.c_str()) != 0;
	}

	//Get the theme.
	{
	//NOTE: level themes are always enabled.

	//Check for bundled (partial) themes for level pack.
	if (levels->customTheme){
	if (objThemes.appendThemeFromFile(levels->levelpackPath + "/theme/theme.mnmstheme", imageManager, renderer) == NULL){
	//The theme failed to load so set the customTheme boolean to false.
	levels->customTheme = false;
	}
	}

	//Check for the theme to use for this level. This has higher priority.
	//Examples: %DATA%/themes/classic or %USER%/themes/Orange
	string &s = editorData["theme"];
	if (!s.empty()){
	customTheme = objThemes.appendThemeFromFile(processFileName(s) + "/theme.mnmstheme", imageManager, renderer);
	}

	//Set the Appearance of the player and the shadow.
	objThemes.getCharacter(false)->createInstance(&player.appearance, "standright");
	player.appearanceInitial = player.appearanceSave = player.appearance;
	objThemes.getCharacter(true)->createInstance(&shadow.appearance, "standright");
	shadow.appearanceInitial = shadow.appearanceSave = shadow.appearance;
	}

	//Get the music.
	reloadMusic();

	//Load the data from the level node.
	for(unsigned int i=0;i<obj->subNodes.size();i++){
	TreeStorageNode* obj1=obj->subNodes[i];
	if(obj1==NULL) continue;
	if(obj1->name=="tile"){
	Block* block=new Block(this);
	if(!block->loadFromNode(imageManager,renderer,obj1)){
	delete block;
	continue;
	}

	//If the type is collectable, increase the number of totalCollectables
	if (block->type == TYPE_COLLECTABLE) {
	totalCollectablesSaved = totalCollectablesInitial = ++totalCollectables;
	}

	//Add the block to the levelObjects vector.
	levelObjects.push_back(block);
	}else if(obj1->name=="scenerylayer" && obj1->value.size()==1){
	std::string layerName = obj1->value[0];

	//Upgrade the layer naming convention.
	if (layerName >= "f") {
	//Foreground layer.
	if (layerName.size() < 3 \|\| layerName[0] != 'f' \|\| layerName[1] != 'g' \|\| layerName[2] != '_') {
	layerName = "fg_" + layerName;
	}
	} else {
	//Background layer.
	if (layerName.size() < 3 \|\| layerName[0] != 'b' \|\| layerName[1] != 'g' \|\| layerName[2] != '_') {
	layerName = "bg_" + layerName;
	}
	}

	//Check if the layer exists.
	if (sceneryLayers[layerName] == NULL) {
	sceneryLayers[layerName] = new SceneryLayer();
	}

	//Load contents from node.
	sceneryLayers[layerName]->loadFromNode(this, imageManager, renderer, obj1);
	}else if(obj1->name=="script" && !obj1->value.empty()){
	map<string,int>::iterator it=Game::levelEventNameMap.find(obj1->value[0]);
	if(it!=Game::levelEventNameMap.end()){
	int eventType=it->second;
	const std::string& script=obj1->attributes["script"][0];
	if(!script.empty()) scripts[eventType]=script;
	}
	}
	}

	//Set the levelName to the name of the current level.
	levelName=editorData["name"];
	levelFile=fileName;
	scriptFile = scriptFileName;

	//Some extra stuff only needed when not in the levelEditor.
	if(stateID!=STATE_LEVEL_EDITOR){
	//We create a text with the text "Level <levelno> <levelName>".
	//It will be shown in the left bottom corner of the screen.
	string s;
	if(levels->getLevelCount()>1 && levels->type!=COLLECTION){
	s=tfm::format(_("Level %d %s"),levels->getCurrentLevel()+1,_CC(levels->getDictionaryManager(),editorData["name"]));
	} else {
	s = _CC(levels->getDictionaryManager(), editorData["name"]);
	}

	bmTipsLevelName=textureFromText(renderer, *fontText,s.c_str(),objThemes.getTextColor(true));
	}

	//Get the background
	background=objThemes.getBackground(false);

	//Now the loading is finished, we reset all objects to their initial states.
	//Before doing that we swap the levelObjects to levelObjectsInitial.
	std::swap(levelObjects, levelObjectsInitial);
	reset(true, stateID == STATE_LEVEL_EDITOR);
	}

	void Game::loadLevel(ImageManager& imageManager,SDL_Renderer& renderer,const std::string& fileName){
	//Create a TreeStorageNode that will hold the loaded data.
	TreeStorageNode *obj=new TreeStorageNode();
	{
	POASerializer objSerializer;

	//Parse the file.
	if(!objSerializer.loadNodeFromFile(fileName.c_str(),obj,true)){
	cerr<<"ERROR: Can't load level file "<<fileName<<endl;
	delete obj;
	return;
	}
	}

	//Now call another function.
	loadLevelFromNode(imageManager, renderer, obj, fileName, std::string());

	//Set variable for Survivalist achievement.
	survivalistLevel2 = fileName;
	}

	void Game::saveRecord(const char* fileName){
	//check if current level is NULL (which should be impossible)
	if(currentLevelNode==NULL) return;

	TreeStorageNode obj;
	POASerializer objSerializer;

	//put current level to the node.
	currentLevelNode->name="map";
	obj.subNodes.push_back(currentLevelNode);

	//put the random seed into the attributes.
	obj.attributes["seed"].push_back(prngSeed);

	//put the external script file into the attributes.
	{
	std::string s = scriptFile;
	if (s.empty() && !levelFile.empty() && levelFile[0] != '?') {
	s = levelFile;
	size_t lp = s.find_last_of('.');
	if (lp != std::string::npos) {
	s = s.substr(0, lp);
	}
	s += ".lua";
	}

	//Now load the external script file.
	if (!s.empty()) {
	if (s[0] == '?') {
	s = s.substr(1);
	} else {
	FILE *f = fopen(s.c_str(), "r");
	if (f) {
	fseek(f, 0, SEEK_END);
	size_t m = ftell(f);
	fseek(f, 0, SEEK_SET);
	std::vector<char> tmp(m);
	fread(tmp.data(), 1, m, f);
	fclose(f);
	tmp.push_back(0);
	s = tmp.data();
	} else {
	s.clear();
	}
	}
	}

	if (!s.empty()) {
	obj.attributes["script"].push_back(s);
	}
	}

	//serialize the game record using RLE compression.
	#define PUSH_BACK \
	if(j>0){ \
	if(j>1){ \
	sprintf(c,"%d*%d",last,j); \
	}else{ \
	sprintf(c,"%d",last); \
	} \
	v.push_back(c); \
	}
	vector<string> &v=obj.attributes["record"];
	vector<int> *record=player.getRecord();
	char c[64];
	int i,j=0,last;
	for(i=0;i<(int)record->size();i++){
	int currentKey=(*record)[i];
	if(j==0 \|\| currentKey!=last){
	PUSH_BACK;
	last=currentKey;
	j=1;
	}else{
	j++;
	}
	}
	PUSH_BACK;
	#undef PUSH_BACK

	#ifdef RECORD_FILE_DEBUG
	//add record file debug data.
	{
	obj.attributes["recordKeyPressLog"].push_back(player.keyPressLog());

	vector<SDL_Rect> &playerPosition=player.playerPosition();
	string s;
	char c[32];

	sprintf(c,"%d\n",int(playerPosition.size()));
	s=c;

	for(unsigned int i=0;i<playerPosition.size();i++){
	SDL_Rect& r=playerPosition[i];
	sprintf(c,"%d %d\n",r.x,r.y);
	s+=c;
	}

	obj.attributes["recordPlayerPosition"].push_back(s);
	}
	#endif

	//save it
	objSerializer.saveNodeToFile(fileName,&obj,true,true);

	//remove current level from node to prevent delete it.
	obj.subNodes.clear();
	}

	/////////////EVENT///////////////
	void Game::handleEvents(ImageManager& imageManager, SDL_Renderer& renderer){
	//First of all let the player handle input.
	player.handleInput(&shadow);

	//Check for an SDL_QUIT event.
	if(event.type==SDL_QUIT){
	//We need to quit so enter STATE_EXIT.
	setNextState(STATE_EXIT);
	}

	//Check for the escape key.
	if(stateID != STATE_LEVEL_EDITOR && inputMgr.isKeyDownEvent(INPUTMGR_ESCAPE)){
	//Escape means we go one level up, to the level select state.
	setNextState(STATE_LEVEL_SELECT);

	//Save the progress if we are not watching a replay.
	if (!player.isPlayFromRecord() \|\| interlevel) {
	levels->saveLevelProgress();
	}

	//And change the music back to the menu music.
	getMusicManager()->playMusic("menu");
	}

	//Check if 'R' is pressed.
	if(inputMgr.isKeyDownEvent(INPUTMGR_RESTART)){
	//Restart game only if we are not watching a replay.
	if (!player.isPlayFromRecord() \|\| interlevel) {
	//Reset the game at next frame.
	isReset = true;

	//Also delete any gui (most likely the interlevel gui). Only in game mode.
	if (GUIObjectRoot && stateID != STATE_LEVEL_EDITOR){
	delete GUIObjectRoot;
	GUIObjectRoot = NULL;
	}

	//And set interlevel to false.
	interlevel = false;
	}
	}

	//Check for the next level buttons when in the interlevel popup.
	if (inputMgr.isKeyDownEvent(INPUTMGR_SPACE) \|\| inputMgr.isKeyDownEvent(INPUTMGR_SELECT)){
	if(interlevel){
	//The interlevel popup is shown so we need to delete it.
	if(GUIObjectRoot){
	delete GUIObjectRoot;
	GUIObjectRoot=NULL;
	}

	//Now goto the next level.
	gotoNextLevel(imageManager,renderer);
	}
	}

	//Check if tab is pressed.
	if(inputMgr.isKeyDownEvent(INPUTMGR_TAB)){
	//Switch the camera mode.
	switch(cameraMode){
	case CAMERA_PLAYER:
	cameraMode=CAMERA_SHADOW;
	break;
	case CAMERA_SHADOW:
	case CAMERA_CUSTOM:
	cameraMode=CAMERA_PLAYER;
	break;
	}
	}
	}

	/////////////////LOGIC///////////////////
	void Game::logic(ImageManager& imageManager, SDL_Renderer& renderer){
	//Reset the gameTip.
	gameTipText.clear();

	//Add one tick to the time.
	time++;

	//NOTE: This code reverts some changes in commit 5f03ae5.
	//This is part of old prepareFrame() code.
	//This is needed since otherwise the script function block:setLocation() and block:moveTo() are completely broken.
	//Later we should rewrite collision system completely which will remove this piece of code.
	//NOTE: In new collision system the effect of dx/dy/xVel/yVel should only be restricted in one frame.
	for (auto obj : levelObjects) {
	switch (obj->type) {
	default:
	obj->dx = obj->dy = obj->xVel = obj->yVel = 0;
	break;
	case TYPE_PUSHABLE:
	//NOTE: Currently the dx/dy/etc. of pushable blocks are still carry across frames, in order to make the collision system work correct.
	break;
	case TYPE_CONVEYOR_BELT: case TYPE_SHADOW_CONVEYOR_BELT:
	//NOTE: We let the conveyor belt itself to reset its xVel/yVel.
	obj->dx = obj->dy = 0;
	break;
	}
	}

	//NOTE2: The above code breaks pushable block with moving block in most cases,
	//more precisely, if the pushable block is processed before the moving block then things may be broken.
	//Therefore later we must process other blocks before moving pushable block.

	//Process delay execution scripts.
	getScriptExecutor()->processDelayExecution();

	//Process any event in the queue.
	for(unsigned int idx=0;idx<eventQueue.size();idx++){
	//Get the event from the queue.
	typeGameObjectEvent &e=eventQueue[idx];

	//Check if the it has an id attached to it.
	if(e.target){
	//NOTE: Should we check if the target still exists???
	e.target->onEvent(e.eventType);
	}else if(e.flags&1){
	//Loop through the levelObjects and give them the event if they have the right id.
	for(unsigned int i=0;i<levelObjects.size();i++){
	if(e.objectType<0 \|\| levelObjects[i]->type==e.objectType){
	if(levelObjects[i]->id==e.id){
	levelObjects[i]->onEvent(e.eventType);
	}
	}
	}
	}else{
	//Loop through the levelObjects and give them the event.
	for(unsigned int i=0;i<levelObjects.size();i++){
	if(e.objectType<0 \|\| levelObjects[i]->type==e.objectType){
	levelObjects[i]->onEvent(e.eventType);
	}
	}
	}
	}
	//Done processing the events so clear the queue.
	eventQueue.clear();

	//Remove levelObjects whose isDelete is true.
	{
	int j = 0;
	for (int i = 0; i < (int)levelObjects.size(); i++) {
	if (levelObjects[i] == NULL) {
	j++;
	} else if (levelObjects[i]->isDelete) {
	delete levelObjects[i];
	levelObjects[i] = NULL;
	j++;
	} else if (j > 0) {
	levelObjects[i - j] = levelObjects[i];
	}
	}
	if (j > 0) levelObjects.resize(levelObjects.size() - j);
	}

	//Check if we should save/load state.
	//NOTE: This happens after event handling so no eventQueue has to be saved/restored.
	checkSaveLoadState();

	//Loop through the gameobjects to update them.
	for(unsigned int i=0;i<levelObjects.size();i++){
	//Send GameObjectEvent_OnEnterFrame event to the script
	levelObjects[i]->onEvent(GameObjectEvent_OnEnterFrame);
	}
	//Let the gameobject handle movement.
	{
	std::vector<Block*> pushableBlocks;

	//First we process blocks which are not pushable blocks.
	for (auto o : levelObjects) {
	if (o->type == TYPE_PUSHABLE) {
	pushableBlocks.push_back(o);
	} else {
	o->move();
	}
	}

	//Sort pushable blocks by their position, which is an ad-hoc workaround for
	//<https://forum.freegamedev.net/viewtopic.php?f=48&t=8047#p77692>.
	std::stable_sort(pushableBlocks.begin(), pushableBlocks.end(),
	[](const Block* obj1, const Block* obj2)->bool
	{
	SDL_Rect r1 = const_cast<Block>(obj1)->getBox(), r2 = const_cast<Block>(obj2)->getBox();
	if (r1.y > r2.y) return true;
	else if (r1.y < r2.y) return false;
	else return r1.x < r2.x;
	});

	//Now we process pushable blocks.
	for (auto o : pushableBlocks) {
	o->move();
	}
	}
	//Also update the scenery.
	for (auto it = sceneryLayers.begin(); it != sceneryLayers.end(); ++it){
	it->second->updateAnimation();
	}
	//Also update the animation of the background.
	{
	//Get a pointer to the background.
	ThemeBackground* bg = background;

	//Check if the background is null, but there are themes.
	if (bg == NULL && objThemes.themeCount() > 0){
	//Get the background from the first theme in the stack.
	bg = objThemes[0]->getBackground(false);
	}

	//Check if the background isn't null.
	//And if it's the loaded background then also update the animation.
	if (bg && bg == background) {
	bg->updateAnimation();
	}
	}

	//Let the player store his move, if recording.
	player.shadowSetState();
	//Let the player give his recording to the shadow, if configured.
	player.shadowGiveState(&shadow);

	//NOTE: to fix bugs regarding player/shadow swap, we should first process collision of player/shadow then move them

	const SDL_Rect playerLastPosition = player.getBox();
	const SDL_Rect shadowLastPosition = shadow.getBox();

	//NOTE: The following is ad-hoc code to fix shadow on blocked player on conveyor belt bug
	if (shadow.holdingOther) {
	//We need to process shadow collision first if shadow is holding player.

	//Let the shadow decide his move, if he's playing a recording.
	shadow.moveLogic();

	//Check collision for shadow.
	shadow.collision(levelObjects, NULL);

	//Get the new position of it.
	const SDL_Rect r = shadow.getBox();

	//Check collision for player. Transfer the velocity of shadow to it only if the shadow moves its position.
	player.collision(levelObjects, (r.x != shadowLastPosition.x \|\| r.y != shadowLastPosition.y) ? &shadow : NULL);
	} else {
	//Otherwise we process player first.

	//Check collision for player.
	player.collision(levelObjects, NULL);

	//Get the new position of it.
	const SDL_Rect r = player.getBox();

	//Now let the shadow decide his move, if he's playing a recording.
	shadow.moveLogic();

	//Check collision for shadow. Transfer the velocity of player to it only if the player moves its position.
	shadow.collision(levelObjects, (r.x != playerLastPosition.x \|\| r.y != playerLastPosition.y) ? &player : NULL);
	}

	//Let the player move.
	player.move(levelObjects, playerLastPosition.x, playerLastPosition.y);
	//Let the shadow move.
	shadow.move(levelObjects, shadowLastPosition.x, shadowLastPosition.y);

	//Check collision and stuff for the shadow and player.
	player.otherCheck(&shadow);

	bool doNotResetWon = false;

	//Check if we won.
	if(won){
	//Check if it's level editor test play
	if (stateID == STATE_LEVEL_EDITOR) {
	if (auto editor = dynamic_cast<LevelEditor*>(this)) {
	editor->updateRecordInPlayMode(imageManager, renderer);
	}
	}
	//Check if it's playing from record
	else if (player.isPlayFromRecord() && !interlevel) {
	//We don't reset the won to false, and let RecordPlayback class handle it.
	doNotResetWon = true;
	}else{
	//Local copy of interlevel property since the replayPlay() will change it later.
	const bool previousInterlevel = interlevel;

	//We only update the level statistics when the previous state is not interlevel mode.
	if (!previousInterlevel) {
	//the string to store auto-save record path.
	string bestTimeFilePath, bestRecordingFilePath;
	//and if we can't get test path.
	bool filePathError = false;

	+ //Fixed a bug that the MD5 of current level may be not calculated yet.
	+ levels->getLevelMD5();
	+
	//Get current level
	LevelPack::Level *level = levels->getLevel();

	//Get previous medal
	const int oldMedal = level->getMedal();

	//Check if MD5 is changed
	bool md5Changed = false;

	for (int i = 0; i < 16; i++) {
	if (level->md5Digest[i] != level->md5InLevelProgress[i]) {
	md5Changed = true;
	break;
	}
	}

	//Erase existing record if MD5 is changed
	if (md5Changed) {
	//print some debug message
	#if _DEBUG
	cout << "MD5 is changed, old " << Md5::toString(level->md5InLevelProgress);
	cout << ", new " << Md5::toString(level->md5Digest) << endl;
	#endif
	level->time = -1;
	level->recordings = -1;

	//Update the MD5 in record
	memcpy(level->md5InLevelProgress, level->md5Digest, sizeof(level->md5Digest));
	}

	//Get better time and recordings
	const int betterTime = level->getBetterTime(time);
	const int betterRecordings = level->getBetterRecordings(level->arcade ? currentCollectables : recordings);

	//Get new medal
	const int newMedal = level->getMedal(betterTime, betterRecordings);

	//Check if we need to update statistics
	if (newMedal > oldMedal \|\| md5Changed) {
	//Get category.
	int category = (int)levels->type;
	if (category > CUSTOM) category = CUSTOM;

	//Update pack medal.
	if (levels->type != COLLECTION) {
	int packMedal = 3;
	for (int i = 0, j = levels->getCurrentLevel(), m = levels->getLevelCount(); i < m; i++) {
	if (i != j) {
	int medal = levels->getLevel(i)->getMedal();
	if (packMedal > medal) packMedal = medal;
	}
	}
	int oldPackMedal = std::min(packMedal, oldMedal), newPackMedal = std::min(packMedal, newMedal);

	//Erase statictics for old medal
	if (oldPackMedal > 0) {
	statsMgr.completedLevelpacks--;
	statsMgr.completedLevelpacksByCategory[category]--;
	}
	if (oldPackMedal == 2) {
	statsMgr.silverLevelpacks--;
	statsMgr.silverLevelpacksByCategory[category]--;
	}
	if (oldPackMedal == 3) {
	statsMgr.goldLevelpacks--;
	statsMgr.goldLevelpacksByCategory[category]--;
	}

	//Update statistics for new medal
	if (newPackMedal > 0) {
	statsMgr.completedLevelpacks++;
	statsMgr.completedLevelpacksByCategory[category]++;
	}
	if (newPackMedal == 2) {
	statsMgr.silverLevelpacks++;
	statsMgr.silverLevelpacksByCategory[category]++;
	}
	if (newPackMedal == 3) {
	statsMgr.goldLevelpacks++;
	statsMgr.goldLevelpacksByCategory[category]++;
	}

	//Check achievement "Complete any level pack besides tutorial"
	if (newPackMedal > 0 && levels->levelpackName != "tutorial") {
	statsMgr.newAchievement("complete_levelpack");
	}
	}

	//Erase statictics for old medal
	if (oldMedal > 0) {
	statsMgr.completedLevels--;
	statsMgr.completedLevelsByCategory[category]--;
	}
	if (oldMedal == 2) {
	statsMgr.silverLevels--;
	statsMgr.silverLevelsByCategory[category]--;
	}
	if (oldMedal == 3) {
	statsMgr.goldLevels--;
	statsMgr.goldLevelsByCategory[category]--;
	}

	//Update statistics for new medal
	if (newMedal > 0) {
	statsMgr.completedLevels++;
	statsMgr.completedLevelsByCategory[category]++;
	}
	if (newMedal == 2) {
	statsMgr.silverLevels++;
	statsMgr.silverLevelsByCategory[category]++;
	}
	if (newMedal == 3) {
	statsMgr.goldLevels++;
	statsMgr.goldLevelsByCategory[category]++;
	}
	}

	//Check the achievement "Complete a level with recordings less than the target recordings"
	if (!arcade && level->targetRecordings >= 0 && recordings < level->targetRecordings) {
	statsMgr.newAchievement("underpar");
	}

	//Check the achievement "Complete a level with checkpoint, but without saving"
	if (objLastCheckPoint.get() == NULL) {
	for (auto obj : levelObjects) {
	if (obj->type == TYPE_CHECKPOINT) {
	statsMgr.newAchievement("withoutsave");
	break;
	}
	}
	}

	//Check the Survivalist achievement.
	if (!survivalistLevel2.empty()) {
	survivalistLevels.insert(survivalistLevel2);
	if (survivalistLevels.size() >= 10) {
	statsMgr.newAchievement("survivalist");
	}
	}

	//Set the current level won.
	level->won = true;
	if (level->time != betterTime) {
	level->time = betterTime;
	//save the best-time game record.
	if (bestTimeFilePath.empty()){
	getCurrentLevelAutoSaveRecordPath(bestTimeFilePath, bestRecordingFilePath, true);
	}
	if (bestTimeFilePath.empty()){
	cerr << "ERROR: Couldn't get auto-save record file path" << endl;
	filePathError = true;
	} else{
	saveRecord(bestTimeFilePath.c_str());
	}
	}
	if (level->recordings != betterRecordings) {
	level->recordings = betterRecordings;
	//save the best-recordings game record.
	if (bestRecordingFilePath.empty() && !filePathError){
	getCurrentLevelAutoSaveRecordPath(bestTimeFilePath, bestRecordingFilePath, true);
	}
	if (bestRecordingFilePath.empty()){
	cerr << "ERROR: Couldn't get auto-save record file path" << endl;
	filePathError = true;
	} else{
	saveRecord(bestRecordingFilePath.c_str());
	}
	}

	//Set the next level unlocked if it exists.
	if (levels->getCurrentLevel() + 1 < levels->getLevelCount()){
	levels->setLocked(levels->getCurrentLevel() + 1);
	}
	//And save the progress.
	levels->saveLevelProgress();
	}

	//Now go to the interlevel screen.
	replayPlay(imageManager,renderer);

	//Update achievements (only when the previous state is not interlevel mode)
	if (!previousInterlevel) {
	if (levels->levelpackName == "tutorial") statsMgr.updateTutorialAchievements();
	statsMgr.updateLevelAchievements();
	}

	//NOTE: We set isReset false to prevent the user from getting a best time of 0.00s and 0 recordings.
	isReset = false;
	}
	}
	if (!doNotResetWon) won = false;

	//Check if we should reset.
	if (isReset) {
	//NOTE: we don't need to reset save ??? it looks like that there are no bugs
	reset(false, false);
	}
	isReset=false;

	//Finally we update the animation of player and shadow (was previously in render() function).
	shadow.updateAnimation();
	player.updateAnimation();
	}

	void Game::checkSaveLoadState() {
	//Check if we should save/load state.
	//NOTE: This happens after event handling so no eventQueue has to be saved/restored.
	if (saveStateNextTime){
	saveState();
	} else if (loadStateNextTime){
	loadState();
	}
	saveStateNextTime = false;
	loadStateNextTime = false;
	}

	/////////////////RENDER//////////////////
	void Game::render(ImageManager&,SDL_Renderer &renderer){
	//Update the camera (was previously in logic() function).
	switch (cameraMode) {
	case CAMERA_PLAYER:
	player.setMyCamera();
	break;
	case CAMERA_SHADOW:
	shadow.setMyCamera();
	break;
	case CAMERA_CUSTOM:
	//NOTE: The target is (should be) screen size independent so calculate the real target x and y here.
	int targetX = cameraTarget.x - (SCREEN_WIDTH / 2);
	int targetY = cameraTarget.y - (SCREEN_HEIGHT / 2);
	//Move the camera to the cameraTarget.
	if (camera.x > targetX) {
	camera.x -= (camera.x - targetX) >> 4;
	//Make sure we don't go too far.
	if (camera.x < targetX)
	camera.x = targetX;
	} else if (camera.x < targetX) {
	camera.x += (targetX - camera.x) >> 4;
	//Make sure we don't go too far.
	if (camera.x > targetX)
	camera.x = targetX;
	}
	if (camera.y > targetY) {
	camera.y -= (camera.y - targetY) >> 4;
	//Make sure we don't go too far.
	if (camera.y < targetY)
	camera.y = targetY;
	} else if (camera.y < targetY) {
	camera.y += (targetY - camera.y) >> 4;
	//Make sure we don't go too far.
	if (camera.y > targetY)
	camera.y = targetY;
	}
	break;
	}

	//First of all render the background.
	{
	//Get a pointer to the background.
	ThemeBackground* bg=background;

	//Check if the background is null, but there are themes.
	if(bg==NULL && objThemes.themeCount()>0){
	//Get the background from the first theme in the stack.
	bg=objThemes[0]->getBackground(false);
	}

	//Check if the background isn't null.
	if(bg){
	//It isn't so draw it.
	bg->draw(renderer);
	}else{
	//There's no background so fill the screen with white.
	SDL_SetRenderDrawColor(&renderer, 255,255,255,255);
	SDL_RenderClear(&renderer);
	}
	}

	//Now draw the blackground layers.
	auto it = sceneryLayers.begin();
	for (; it != sceneryLayers.end(); ++it){
	if (it->first >= "f") break; // now we meet a foreground layer
	it->second->show(renderer);
	}

	//Now we draw the levelObjects.
	{
	//NEW: always render the pushable blocks in front of other blocks
	std::vector<Block*> pushableBlocks;

	for (auto o : levelObjects) {
	if (o->type == TYPE_PUSHABLE) {
	pushableBlocks.push_back(o);
	} else {
	o->show(renderer);
	}
	}

	for (auto o : pushableBlocks) {
	o->show(renderer);
	}
	}

	//Followed by the player and the shadow.
	//NOTE: We draw the shadow first, because he needs to be behind the player.
	shadow.show(renderer);
	player.show(renderer);

	//Now draw the foreground layers.
	for (; it != sceneryLayers.end(); ++it){
	it->second->show(renderer);
	}

	//Show the levelName if it isn't the level editor.
	if(stateID!=STATE_LEVEL_EDITOR && bmTipsLevelName!=NULL && !interlevel){
	SDL_Rect r(rectFromTexture(bmTipsLevelName));
	drawGUIBox(-2, SCREEN_HEIGHT - r.h - 4, r.w + 8, r.h + 6, renderer, 0xFFFFFFFF);
	applyTexture(2, SCREEN_HEIGHT - r.h, *bmTipsLevelName, renderer, NULL);
	}

	//Check if there's a tooltip.
	if(!gameTipText.empty()){
	std::string message = gameTipText;

	if (gameTipTexture.needsUpdate(gameTipText)) {
	int maxWidth = 0, y = 0;
	std::vector<std::string> string_data;

	//Trim the message.
	{
	size_t lps = message.find_first_not_of("\n\r \t");
	if (lps == string::npos) {
	message.clear(); // it's completely empty
	} else {
	message = message.substr(lps, message.find_last_not_of("\n\r \t") - lps + 1);
	}
	}

	if (!message.empty()) {
	message.push_back('\0');

	//Split the message into lines.
	for (int lps = 0;;) {
	// determine the end of line
	int lpe = lps;
	for (; message[lpe] != '\n' && message[lpe] != '\r' && message[lpe] != '\0'; lpe++);

	string_data.push_back(message.substr(lps, lpe - lps));

	// break if the string ends
	if (message[lpe] == '\0') break;

	// skip "\r\n" for Windows line ending
	if (message[lpe] == '\r' && message[lpe + 1] == '\n') lpe++;

	// point to the start of next line
	lps = lpe + 1;
	}

	vector<SurfacePtr> lines;

	//Create the image for each lines
	for (int i = 0; i < (int)string_data.size(); i++) {
	//Integer used to center the sentence horizontally.
	int w = 0, h = 0;
	TTF_SizeUTF8(fontText, string_data[i].c_str(), &w, &h);

	//Find out largest width
	if (w > maxWidth)
	maxWidth = w;

	lines.emplace_back(TTF_RenderUTF8_Blended(fontText, string_data[i].c_str(), objThemes.getTextColor(true)));

	//Increase y with the height of the text.
	y += h;
	}

	SurfacePtr surf = createSurface(maxWidth, y);
	y = 0;
	for (auto &s : lines) {
	if (s) {
	applySurface(0, y, s.get(), surf.get(), NULL);
	y += s->h;
	}
	}
	gameTipTexture.update(gameTipText, textureUniqueFromSurface(renderer, std::move(surf)));
	}
	}

	//We already have a gameTip for this type so draw it.
	if (!message.empty() && gameTipTexture.get()){
	SDL_Rect r(rectFromTexture(*gameTipTexture.get()));
	drawGUIBox(-2, -2, r.w + 8, r.h + 6, renderer, 0xFFFFFFFF);
	applyTexture(2, 2, *gameTipTexture.get(), renderer);
	}
	}

	// Limit the scope of bm, as it's a borrowed pointer.
	{
	//Pointer to the sdl texture that will contain a message, if any.
	SDL_Texture* bm=NULL;

	//Check if the player is dead and the game is normal mode, meaning we draw a message.
	if(player.dead && !arcade){
	//Get user configured restart key
	string keyCodeRestart = InputManagerKeyCode::describeTwo(inputMgr.getKeyCode(INPUTMGR_RESTART, false), inputMgr.getKeyCode(INPUTMGR_RESTART, true));
	//The player is dead, check if there's a state that can be loaded.
	if(player.canLoadState()){
	//Now check if the tip is already made, if not make it.
	if(bmTipsRestartCheckpoint==NULL){
	//Get user defined key for loading checkpoint
	string keyCodeLoad = InputManagerKeyCode::describeTwo(inputMgr.getKeyCode(INPUTMGR_LOAD, false), inputMgr.getKeyCode(INPUTMGR_LOAD, true));
	//Draw string
	bmTipsRestartCheckpoint = textureFromText(renderer, *fontText,//TTF_RenderUTF8_Blended(fontText,
	/// TRANSLATORS: Please do not remove %s from your translation:
	/// - first %s means currently configured key to restart game
	/// - Second %s means configured key to load from last save
	tfm::format(_("Press %s to restart current level or press %s to load the game."),
	keyCodeRestart,keyCodeLoad).c_str(),
	objThemes.getTextColor(true));
	}
	bm = bmTipsRestartCheckpoint.get();
	}else{
	//Now check if the tip is already made, if not make it.
	if (bmTipsRestart == NULL){
	bmTipsRestart = textureFromText(renderer, *fontText,
	/// TRANSLATORS: Please do not remove %s from your translation:
	/// - %s will be replaced with currently configured key to restart game
	tfm::format(_("Press %s to restart current level."),keyCodeRestart).c_str(),
	objThemes.getTextColor(true));
	}
	bm = bmTipsRestart.get();
	}
	}

	//Check if the shadow has died (and there's no other notification).
	//NOTE: We use the shadow's jumptime as countdown, this variable isn't used when the shadow is dead.
	if(shadow.dead && bm==NULL && shadow.jumpTime>0){
	//Now check if the tip is already made, if not make it.
	if(bmTipsShadowDeath==NULL){
	bmTipsShadowDeath = textureFromText(renderer, *fontText,
	_("Your shadow has died."),
	objThemes.getTextColor(true));
	}
	bm = bmTipsShadowDeath.get();

	//NOTE: Logic in the render loop, we substract the shadow's jumptime by one.
	shadow.jumpTime--;

	//return view to player and keep it there
	cameraMode=CAMERA_PLAYER;
	}

	//Draw the tip.
	if(bm!=NULL){
	const SDL_Rect textureSize = rectFromTexture(*bm);
	int x=(SCREEN_WIDTH-textureSize.w)/2;
	int y=32;
	drawGUIBox(x-8,y-8,textureSize.w+16,textureSize.h+14,renderer,0xFFFFFFFF);
	applyTexture(x,y,*bm,renderer);
	}
	}

	{
	int y = SCREEN_HEIGHT;

	//Show the number of collectables the user has collected if there are collectables in the level.
	//We hide this when interlevel.
	if ((currentCollectables \|\| totalCollectables) && !interlevel){
	if (arcade) {
	//Only show the current collectibles in arcade mode.
	if (collectablesTexture.needsUpdate(currentCollectables)) {
	collectablesTexture.update(currentCollectables,
	textureFromText(renderer,
	*fontText,
	tfm::format("%d", currentCollectables).c_str(),
	objThemes.getTextColor(true)));
	}
	} else {
	if (collectablesTexture.needsUpdate(currentCollectables ^ (totalCollectables << 16))) {
	collectablesTexture.update(currentCollectables ^ (totalCollectables << 16),
	textureFromText(renderer,
	*fontText,
	tfm::format("%d/%d", currentCollectables, totalCollectables).c_str(),
	objThemes.getTextColor(true)));
	}
	}
	SDL_Rect bmSize = rectFromTexture(*collectablesTexture.get());

	//Draw background
	drawGUIBox(SCREEN_WIDTH - bmSize.w - 34, SCREEN_HEIGHT - bmSize.h - 4, bmSize.w + 34 + 2, bmSize.h + 4 + 2, renderer, 0xFFFFFFFF);

	//Draw the collectable icon
	collectable.draw(renderer, SCREEN_WIDTH - 50 + 12, SCREEN_HEIGHT - 50 + 10);

	//Draw text
	applyTexture(SCREEN_WIDTH - 50 - bmSize.w + 22, SCREEN_HEIGHT - bmSize.h, collectablesTexture.getTexture(), renderer);

	y -= bmSize.h + 4;
	}

	//Show additional message in level editor.
	if (stateID == STATE_LEVEL_EDITOR && additionalTexture) {
	SDL_Rect r = rectFromTexture(*additionalTexture.get());
	r.x = SCREEN_WIDTH - r.w;
	r.y = y - r.h;
	SDL_SetRenderDrawColor(&renderer, 255, 255, 255, 255);
	SDL_RenderFillRect(&renderer, &r);
	applyTexture(r.x, r.y, additionalTexture, renderer);
	}
	}

	//show time and records used in level editor or during replay or in arcade mode.
	if ((stateID == STATE_LEVEL_EDITOR \|\| (!interlevel && (player.isPlayFromRecord() \|\| arcade)))){
	const SDL_Color fg=objThemes.getTextColor(true),bg={255,255,255,255};
	const int alpha = 160;

	//don't show number of records in arcade mode
	if (!arcade && recordingsTexture.needsUpdate(recordings)) {
	recordingsTexture.update(recordings,
	textureFromTextShaded(
	renderer,
	*fontMono,
	tfm::format(ngettext("%d recording","%d recordings",recordings).c_str(),recordings).c_str(),
	fg,
	bg
	));
	SDL_SetTextureAlphaMod(recordingsTexture.get(),alpha);
	}

	int y = SCREEN_HEIGHT - (arcade ? 0 : textureHeight(*recordingsTexture.get()));
	if (stateID != STATE_LEVEL_EDITOR && bmTipsLevelName != NULL && !interlevel) {
	y -= textureHeight(bmTipsLevelName) + 4;
	}

	if (!arcade) applyTexture(0,y,*recordingsTexture.get(), renderer);

	if(timeTexture.needsUpdate(time)) {
	timeTexture.update(time,
	textureFromTextShaded(
	renderer,
	*fontMono,
	tfm::format("%-.2fs", time / 40.0).c_str(),
	fg,
	bg
	));
	SDL_SetTextureAlphaMod(timeTexture.get(), alpha);
	}

	y -= textureHeight(*timeTexture.get());

	applyTexture(0,y,*timeTexture.get(), renderer);
	}

	//Draw the current action in the upper right corner.
	if(player.record){
	const SDL_Rect r = { 0, 0, 50, 50 };
	applyTexture(SCREEN_WIDTH - 50, 0, *action, renderer, &r);
	} else if (shadow.state != 0){
	const SDL_Rect r={50,0,50,50};
	applyTexture(SCREEN_WIDTH-50,0,*action,renderer,&r);
	}

	//if the game is play from record then draw something indicates it
	if(player.isPlayFromRecord()){
	//Dim the screen if interlevel is true.
	if(interlevel){
	dimScreen(renderer,191);
	}
	}else if(auto blockId = player.objNotificationBlock.get()){
	//If the player is in front of a notification block and it isn't a replay, show the message.

	//Check if we need to update the notification message texture.
	//We check against blockId rather than the full message, as blockId is most likely shorter.
	if(notificationTexture.needsUpdate(blockId)) {
	std::string message = translateAndExpandMessage(blockId->message);
	std::vector<std::string> string_data;

	//Trim the message.
	{
	size_t lps = message.find_first_not_of("\n\r \t");
	if (lps == string::npos) {
	message.clear(); // it's completely empty
	} else {
	message = message.substr(lps, message.find_last_not_of("\n\r \t") - lps + 1);
	}
	}

	WordWrapper wrapper;
	wrapper.font = fontText;
	wrapper.maxWidth = SCREEN_WIDTH - 40;
	wrapper.wordWrap = true;
	wrapper.hyphen = "-";

	//Split the message into lines.
	wrapper.addString(string_data, message);

	//Create the image.
	notificationTexture.update(blockId,
	textureFromMultilineText(renderer, *fontText, string_data, objThemes.getTextColor(true), GUIGravityCenter));
	}

	SDL_Rect texSize = rectFromTexture(*notificationTexture.get());
	SDL_Rect boxSize = texSize;
	const int verticalPadding = 15;
	const int verticalPadding2 = 5; // additional padding from the bottom of GUI box to the bottom of screen
	boxSize.w += int(SCREEN_WIDTH*0.15);
	boxSize.h += verticalPadding * 2;
	if (boxSize.w > SCREEN_WIDTH - 20) boxSize.w = SCREEN_WIDTH - 20;

	drawGUIBox((SCREEN_WIDTH - boxSize.w) / 2,
	SCREEN_HEIGHT - boxSize.h - verticalPadding2 - 3 /* ?? */,
	boxSize.w,
	boxSize.h + 3 /* ?? */,
	renderer, 0xFFFFFFBF);
	applyTexture((SCREEN_WIDTH - texSize.w) / 2,
	SCREEN_HEIGHT - texSize.h - verticalPadding - verticalPadding2,
	notificationTexture.getTexture(), renderer);
	}
	}

	std::string Game::translateAndExpandMessage(const std::string &untranslated_message) {
	std::string message = _CC(levels->getDictionaryManager(), untranslated_message);

	//Expand the variables.
	std::map<std::string, std::string> cachedVariables;
	for (;;) {
	size_t lps = message.find("{{{");
	if (lps == std::string::npos) break;
	size_t lpe = message.find("}}}", lps);
	if (lpe == std::string::npos) break;

	std::string varName = message.substr(lps + 3, lpe - lps - 3), varValue;
	auto it = cachedVariables.find(varName);

	if (it != cachedVariables.end()) {
	varValue = it->second;
	} else {
	bool isUnknown = true;

	if (varName.size() >= 4 && varName.substr(0, 4) == "key_") {
	//Probably a key name.
	InputManagerKeys key = InputManager::getKeyFromName(varName);
	if (key != INPUTMGR_MAX) {
	varValue = InputManagerKeyCode::describeTwo(inputMgr.getKeyCode(key, false), inputMgr.getKeyCode(key, true));
	isUnknown = false;
	}
	}

	if (isUnknown) {
	//Unknown variable
	cerr << "Warning: Unknown variable '{{{" << varName << "}}}' in notification block message!" << endl;
	}

	cachedVariables[varName] = varValue;
	}

	//Substitute.
	message.replace(message.begin() + lps, message.begin() + (lpe + 3), varValue);
	}

	//Over.
	return message;
	}

	void Game::resize(ImageManager&, SDL_Renderer& /renderer/){
	//Check if the interlevel popup is shown.
	if(interlevel && GUIObjectRoot){
	GUIObjectRoot->left=(SCREEN_WIDTH-GUIObjectRoot->width)/2;
	}
	}

	void Game::replayPlay(ImageManager& imageManager,SDL_Renderer& renderer){
	//Set interlevel true.
	interlevel=true;

	//Make a copy of the playerButtons.
	vector<int> recordCopy=player.recordButton;

	//Backup of time and recordings, etc. before we reset the level.
	//We choose the same variable names so that we don't need to modify the existing code.
	const int time = this->time, recordings = this->recordings, currentCollectables = this->currentCollectables;

	//Reset the game.
	//NOTE: We don't reset the saves. I'll see that if it will introduce bugs.
	reset(false, false);

	//Make the cursor visible when the interlevel popup is up.
	SDL_ShowCursor(SDL_ENABLE);

	//Set the copy of playerButtons back.
	player.recordButton=recordCopy;

	//Now play the recording.
	player.playRecord();

	//Create the gui if it isn't already done.
	if(!GUIObjectRoot){
	//Create a new GUIObjectRoot the size of the screen.
	GUIObjectRoot=new GUIObject(imageManager,renderer,0,0,SCREEN_WIDTH,SCREEN_HEIGHT);
	//Make child widgets change color properly according to theme.
	GUIObjectRoot->inDialog=true;

	//Create a GUIFrame for the upper frame.
	GUIFrame* upperFrame=new GUIFrame(imageManager,renderer,0,4,0,74);
	GUIObjectRoot->addChild(upperFrame);

	//Render the You've finished: text and add it to a GUIImage.
	//NOTE: The texture is managed by the GUIImage so no need to free it ourselfs.
	auto bm = SharedTexture(textureFromText(renderer, *fontGUI,_("You've finished:"),objThemes.getTextColor(true)));
	const SDL_Rect textureSize = rectFromTexture(*bm);

	GUIImage* title=new GUIImage(imageManager,renderer,0,4-GUI_FONT_RAISE,textureSize.w,textureSize.h,bm);
	upperFrame->addChild(title);

	//Create the sub title.
	string s;
	if (levels->getLevelCount()>0){
	/// TRANSLATORS: Please do not remove %s or %d from your translation:
	/// - %d means the level number in a levelpack
	/// - %s means the name of current level
	s=tfm::format(_("Level %d %s"),levels->getCurrentLevel()+1,_CC(levels->getDictionaryManager(),levelName));
	}
	GUIObject* obj=new GUILabel(imageManager,renderer,0,44,0,28,s.c_str(),0,true,true,GUIGravityCenter);
	upperFrame->addChild(obj);
	obj->render(renderer,0,0,false);

	//Determine the width the upper frame should have.
	int width;
	if(textureSize.w>obj->width)
	width=textureSize.w+32;
	else
	width=obj->width+32;
	//Set the left of the title.
	title->left=(width-title->width)/2;
	//Set the width of the level label to the width of the frame for centering.
	obj->width=width;
	//Now set the position and width of the frame.
	upperFrame->width=width;
	upperFrame->left=(SCREEN_WIDTH-width)/2;

	//Now create a GUIFrame for the lower frame.
	GUIFrame* lowerFrame=new GUIFrame(imageManager,renderer,0,SCREEN_HEIGHT-140,570,135);
	GUIObjectRoot->addChild(lowerFrame);

	//The different values.
	int bestTime=levels->getLevel()->time;
	int targetTime=levels->getLevel()->targetTime;
	int bestRecordings=levels->getLevel()->recordings;
	int targetRecordings=levels->getLevel()->targetRecordings;

	int medal = levels->getLevel()->getMedal();
	assert(medal > 0);

	int maxWidth=0;
	int x=20;

	//Is there a target time for this level?
	int timeY=0;
	bool isTargetTime=true;
	if(targetTime<0){
	isTargetTime=false;
	timeY=12;
	}

	//Create the labels with the time and best time.
	/// TRANSLATORS: Please do not remove %-.2f from your translation:
	/// - %-.2f means time in seconds
	/// - s is shortened form of a second. Try to keep it so.
	obj=new GUILabel(imageManager,renderer,x,10+timeY,-1,36,tfm::format(_("Time: %-.2fs"),time/40.0).c_str());
	lowerFrame->addChild(obj);

	obj->render(renderer,0,0,false);
	maxWidth=obj->width;

	/// TRANSLATORS: Please do not remove %-.2f from your translation:
	/// - %-.2f means time in seconds
	/// - s is shortened form of a second. Try to keep it so.
	obj=new GUILabel(imageManager,renderer,x,34+timeY,-1,36,tfm::format(_("Best time: %-.2fs"),bestTime/40.0).c_str());
	lowerFrame->addChild(obj);

	obj->render(renderer,0,0,false);
	if(obj->width>maxWidth)
	maxWidth=obj->width;

	/// TRANSLATORS: Please do not remove %-.2f from your translation:
	/// - %-.2f means time in seconds
	/// - s is shortened form of a second. Try to keep it so.
	if(isTargetTime){
	obj=new GUILabel(imageManager,renderer,x,58,-1,36,tfm::format(_("Target time: %-.2fs"),targetTime/40.0).c_str());
	lowerFrame->addChild(obj);

	obj->render(renderer,0,0,false);
	if(obj->width>maxWidth)
	maxWidth=obj->width;
	}

	x+=maxWidth+20;

	//Is there target recordings for this level?
	int recsY=0;
	bool isTargetRecs=true;
	if(targetRecordings<0){
	isTargetRecs=false;
	recsY=12;
	}

	//Now the ones for the recordings.
	/// TRANSLATORS: Please do not remove %d from your translation:
	/// - %d means the number of recordings user has made
	obj = new GUILabel(imageManager, renderer, x, 10 + recsY, -1, 36,
	arcade ? tfm::format(_("Collectibles: %d"), currentCollectables).c_str() : tfm::format(_("Recordings: %d"), recordings).c_str());
	lowerFrame->addChild(obj);

	obj->render(renderer,0,0,false);
	maxWidth=obj->width;

	/// TRANSLATORS: Please do not remove %d from your translation:
	/// - %d means the number of recordings user has made
	obj = new GUILabel(imageManager, renderer, x, 34 + recsY, -1, 36,
	tfm::format(_(arcade ? "Best collectibles: %d" : "Best recordings: %d"), bestRecordings).c_str());
	lowerFrame->addChild(obj);

	obj->render(renderer,0,0,false);
	if(obj->width>maxWidth)
	maxWidth=obj->width;

	/// TRANSLATORS: Please do not remove %d from your translation:
	/// - %d means the number of recordings user has made
	if(isTargetRecs){
	obj = new GUILabel(imageManager, renderer, x, 58, -1, 36,
	tfm::format(_(arcade ? "Target collectibles: %d" : "Target recordings: %d"), targetRecordings).c_str());
	lowerFrame->addChild(obj);

	obj->render(renderer,0,0,false);
	if(obj->width>maxWidth)
	maxWidth=obj->width;
	}

	x+=maxWidth;

	//The medal that is earned.
	/// TRANSLATORS: Please do not remove %s from your translation:
	/// - %s will be replaced with name of a prize medal (gold, silver or bronze)
	string s1=tfm::format(_("You earned the %s medal"),(medal>1)?(medal==3)?_("GOLD"):_("SILVER"):_("BRONZE"));
	obj=new GUILabel(imageManager,renderer,50,92,-1,36,s1.c_str(),0,true,true,GUIGravityCenter);
	lowerFrame->addChild(obj);

	obj->render(renderer,0,0,false);
	if(obj->left+obj->width>x){
	x=obj->left+obj->width+30;
	}else{
	obj->left=20+(x-20-obj->width)/2;
	}

	//Create the rectangle for the earned medal.
	SDL_Rect r;
	r.x=(medal-1)*30;
	r.y=0;
	r.w=30;
	r.h=30;

	//Create the medal on the left side.
	obj=new GUIImage(imageManager,renderer,16,92,30,30,medals,r);
	lowerFrame->addChild(obj);
	//And the medal on the right side.
	obj=new GUIImage(imageManager,renderer,x-24,92,30,30,medals,r);
	lowerFrame->addChild(obj);

	//Create the three buttons, Menu, Restart, Next.
	/// TRANSLATORS: used as return to the level selector menu
	GUIObject* b1=new GUIButton(imageManager,renderer,x,10,-1,36,_("Menu"),0,true,true,GUIGravityCenter);
	b1->name="cmdMenu";
	b1->eventCallback=this;
	lowerFrame->addChild(b1);
	b1->render(renderer,0,0,true);

	/// TRANSLATORS: used as restart level
	GUIObject* b2=new GUIButton(imageManager,renderer,x,50,-1,36,_("Restart"),0,true,true,GUIGravityCenter);
	b2->name="cmdRestart";
	b2->eventCallback=this;
	lowerFrame->addChild(b2);
	b2->render(renderer,0,0,true);

	/// TRANSLATORS: used as next level
	GUIObject* b3=new GUIButton(imageManager,renderer,x,90,-1,36,_("Next"),0,true,true,GUIGravityCenter);
	b3->name="cmdNext";
	b3->eventCallback=this;
	lowerFrame->addChild(b3);
	b3->render(renderer,0,0,true);

	maxWidth=b1->width;
	if(b2->width>maxWidth)
	maxWidth=b2->width;
	if(b3->width>maxWidth)
	maxWidth=b3->width;

	b1->left=b2->left=b3->left=x+maxWidth/2;

	x+=maxWidth;
	lowerFrame->width=x;
	lowerFrame->left=(SCREEN_WIDTH-lowerFrame->width)/2;
	}
	}

	bool Game::canSaveState(){
	return (player.canSaveState() && shadow.canSaveState());
	}

	void Game::saveStateInternal(GameSaveState* o) {
	//Let the player and the shadow save their state.
	player.saveStateInternal(&o->playerSaved);
	shadow.saveStateInternal(&o->shadowSaved);

	//Save the game state.
	saveGameOnlyStateInternal(&o->gameSaved);

	//TODO: Save scenery layers, background animation,
	}

	void Game::loadStateInternal(GameSaveState* o) {
	//Let the player and the shadow load their state.
	player.loadStateInternal(&o->playerSaved);
	shadow.loadStateInternal(&o->shadowSaved);

	//Load the game state.
	loadGameOnlyStateInternal(&o->gameSaved);

	//TODO: load scenery layers, background animation,
	}

	void Game::saveGameOnlyStateInternal(GameOnlySaveState* o) {
	if (o == NULL) o = static_cast<GameOnlySaveState*>(this);

	auto state = getScriptExecutor()->getLuaState();

	//Save the stats.
	o->timeSaved = time;
	o->recordingsSaved = recordings;
	o->recentSwapSaved = recentSwap;

	//Save the PRNG and seed.
	o->prngSaved = prng;
	o->prngSeedSaved = prngSeed;

	//Save the level size.
	o->levelRectSaved = levelRect;

	//Save the camera mode and target.
	o->cameraModeSaved = (int)cameraMode;
	o->cameraTargetSaved = cameraTarget;

	//Save the current collectables
	o->currentCollectablesSaved = currentCollectables;
	o->totalCollectablesSaved = totalCollectables;

	//Save scripts.
	copyCompiledScripts(state, compiledScripts, o->savedCompiledScripts);

	//Save other state, for example moving blocks.
	copyLevelObjects(levelObjects, o->levelObjectsSave, false);

	//Save the state for script executor.
	getScriptExecutor()->saveState(&o->scriptExecutorSaved);

	//Check if we have onSave event.
	if (compiledScripts.find(LevelEvent_OnSave) != compiledScripts.end()) {
	//Backup old SAVESTATE.
	lua_getglobal(state, "SAVESTATE");
	int oldIndex = luaL_ref(state, LUA_REGISTRYINDEX);

	//Prepare the SAVESTATE variable for onSave event.
	lua_pushnil(state);
	lua_setglobal(state, "SAVESTATE");

	//Execute the onSave event.
	executeScript(LevelEvent_OnSave);

	//Retrieve the SAVESTATE and save it.
	luaL_unref(state, LUA_REGISTRYINDEX, o->scriptSaveState); // remove old save state
	lua_getglobal(state, "SAVESTATE");
	o->scriptSaveState = luaL_ref(state, LUA_REGISTRYINDEX);

	//Restore old SAVESTATE.
	lua_rawgeti(state, LUA_REGISTRYINDEX, oldIndex);
	luaL_unref(state, LUA_REGISTRYINDEX, oldIndex);
	lua_setglobal(state, "SAVESTATE");
	}

	//TODO: Save scenery layers, background animation,
	}

	void Game::loadGameOnlyStateInternal(GameOnlySaveState* o) {
	if (o == NULL) o = static_cast<GameOnlySaveState*>(this);

	auto state = getScriptExecutor()->getLuaState();

	//Load the stats.
	time = o->timeSaved;
	recordings = o->recordingsSaved;
	recentSwap = o->recentSwapSaved;

	//Load the PRNG and seed.
	prng = o->prngSaved;
	prngSeed = o->prngSeedSaved;

	//Load the level size.
	levelRect = o->levelRectSaved;

	//Load the camera mode and target.
	cameraMode = (CameraMode)o->cameraModeSaved;
	cameraTarget = o->cameraTargetSaved;

	//Load the current collactbles
	currentCollectables = o->currentCollectablesSaved;
	totalCollectables = o->totalCollectablesSaved;

	//Load scripts.
	copyCompiledScripts(state, o->savedCompiledScripts, compiledScripts);

	//Load other state, for example moving blocks.
	copyLevelObjects(o->levelObjectsSave, levelObjects, true);

	//Load the state for script executor.
	getScriptExecutor()->loadState(&o->scriptExecutorSaved);

	//Check if we have onLoad event.
	if (compiledScripts.find(LevelEvent_OnLoad) != compiledScripts.end()) {
	//Backup old SAVESTATE.
	lua_getglobal(state, "SAVESTATE");
	int oldIndex = luaL_ref(state, LUA_REGISTRYINDEX);

	//Prepare the SAVESTATE variable for onLoad event.
	lua_rawgeti(state, LUA_REGISTRYINDEX, o->scriptSaveState);
	lua_setglobal(state, "SAVESTATE");

	//Execute the onLoad event.
	executeScript(LevelEvent_OnLoad);

	//Restore old SAVESTATE.
	lua_rawgeti(state, LUA_REGISTRYINDEX, oldIndex);
	luaL_unref(state, LUA_REGISTRYINDEX, oldIndex);
	lua_setglobal(state, "SAVESTATE");
	}

	//TODO: load scenery layers, background animation,
	}

	bool Game::saveState(){
	//Check if the player and shadow can save the current state.
	if(canSaveState()){
	//Let the player and the shadow save their state.
	player.saveState();
	shadow.saveState();

	//Save the game state.
	saveGameOnlyStateInternal();

	//Also save states of scenery layers.
	for (auto it = sceneryLayers.begin(); it != sceneryLayers.end(); ++it) {
	it->second->saveAnimation();
	}

	//Also save the background animation, if any.
	if(background)
	background->saveAnimation();

	if(!player.isPlayFromRecord() && !interlevel){
	//Update achievements
	Uint32 t=SDL_GetTicks()+5000; //Add a bias to prevent bugs
	if(recentSave+1000>t){
	statsMgr.newAchievement("panicSave");
	}
	recentSave=t;

	//Update statistics.
	statsMgr.saveTimes++;

	//Update achievements
	switch(statsMgr.saveTimes){
	case 100:
	statsMgr.newAchievement("save100");
	break;
	}
	}

	//Return true.
	return true;
	}

	//We can't save the state so return false.
	return false;
	}

	bool Game::loadState(){
	//Check if there's a state that can be loaded.
	if(player.canLoadState() && shadow.canLoadState()){
	//Reset the stats for level editor.
	if (stateID == STATE_LEVEL_EDITOR) {
	if (auto editor = dynamic_cast<LevelEditor*>(this)) {
	editor->currentTime = editor->currentRecordings = -1;
	editor->updateAdditionalTexture(getImageManager(), getRenderer());
	}
	}

	//Let the player and the shadow load their state.
	player.loadState();
	shadow.loadState();

	//Load the game state.
	loadGameOnlyStateInternal();

	//Also load states of scenery layers.
	for (auto it = sceneryLayers.begin(); it != sceneryLayers.end(); ++it) {
	it->second->loadAnimation();
	}

	//Also load the background animation, if any.
	if(background)
	background->loadAnimation();

	if(!player.isPlayFromRecord() && !interlevel){
	//Update achievements.
	Uint32 t=SDL_GetTicks()+5000; //Add a bias to prevent bugs
	if(recentLoad+1000>t){
	statsMgr.newAchievement("panicLoad");
	}
	recentLoad=t;

	//Update statistics.
	statsMgr.loadTimes++;

	//Update achievements
	switch(statsMgr.loadTimes){
	case 100:
	statsMgr.newAchievement("load100");
	break;
	}
	}

	//Return true.
	return true;
	}

	//We can't load the state so return false.
	return false;
	}

	static std::string createNewSeed() {
	static int createSeedTime = 0;

	struct Buffer {
	time_t systemTime;
	Uint32 sdlTicks;
	int x;
	int y;
	int createSeedTime;
	} buffer;

	buffer.systemTime = time(NULL);
	buffer.sdlTicks = SDL_GetTicks();
	SDL_GetMouseState(&buffer.x, &buffer.y);
	buffer.createSeedTime = ++createSeedTime;

	return Md5::toString(Md5::calc(&buffer, sizeof(buffer), NULL));
	}

	void Game::reset(bool save,bool noScript){
	//Some sanity check, i.e. if we switch from no-script mode to script mode, we should always reset the save
	assert(noScript \|\| getScriptExecutor() \|\| save);

	//We need to reset the game so we also reset the player and the shadow.
	player.reset(save);
	shadow.reset(save);

	saveStateNextTime=false;
	loadStateNextTime=false;

	//Reset the stats.
	time=0;
	recordings=0;

	recentSwap=-10000;
	if(save) recentSwapSaved=-10000;

	//Reset the stats for level editor.
	if (stateID == STATE_LEVEL_EDITOR) {
	if (auto editor = dynamic_cast<LevelEditor*>(this)) {
	editor->currentTime = editor->currentRecordings = -1;
	editor->updateAdditionalTexture(getImageManager(), getRenderer());
	}
	}

	//Reset the pseudo-random number generator by creating a new seed, unless we are playing from record.
	if (levelFile == "?record?" \|\| interlevel) {
	if (prngSeed.empty()) {
	cout << "WARNING: The record file doesn't provide a random seed! Will use a default random seed! "
	"This may breaks the behavior pseudo-random number generator in script!" << endl;
	prngSeed = std::string(32, '0');
	} else {
	#ifdef _DEBUG
	cout << "Use existing PRNG seed: " << prngSeed << endl;
	#endif
	}
	} else {
	prngSeed = createNewSeed();
	#ifdef _DEBUG
	cout << "Create new PRNG seed: " << prngSeed << endl;
	#endif
	}
	{
	std::seed_seq seq(prngSeed.begin(), prngSeed.end());
	prng.seed(seq);
	}
	if (save) {
	prngSaved = prng;
	prngSeedSaved = prngSeed;
	}

	//Reset the level size.
	levelRect = levelRectInitial;
	if (save) levelRectSaved = levelRectInitial;

	//Reset the camera.
	cameraMode=CAMERA_PLAYER;
	if(save) cameraModeSaved=CAMERA_PLAYER;
	cameraTarget = SDL_Rect{ 0, 0, 0, 0 };
	if (save) cameraTargetSaved = SDL_Rect{ 0, 0, 0, 0 };

	//Reset the number of collectables
	currentCollectables = currentCollectablesInitial;
	totalCollectables = totalCollectablesInitial;
	if (save) {
	currentCollectablesSaved = currentCollectablesInitial;
	totalCollectablesSaved = totalCollectablesInitial;
	}

	//Clear the event queue, since all the events are from before the reset.
	eventQueue.clear();

	//Reset states of scenery layers.
	for (auto it = sceneryLayers.begin(); it != sceneryLayers.end(); ++it) {
	it->second->resetAnimation(save);
	}

	//Also reset the background animation, if any.
	if(background)
	background->resetAnimation(save);

	//Reset the cached notification block
	notificationTexture.update(NULL, NULL);

	//Reset the script environment if necessary.
	if (noScript) {
	//Destroys the script environment completely.
	scriptExecutor->destroy();

	//Reset some variables.
	scriptSaveState = LUA_REFNIL;
	if (scriptExecutorSaved.savedDelayExecutionObjects) {
	// Set the state to NULL since the state is already destroyed. This prevents the destructor to call luaL_unref.
	scriptExecutorSaved.savedDelayExecutionObjects->state = NULL;
	delete scriptExecutorSaved.savedDelayExecutionObjects;
	scriptExecutorSaved.savedDelayExecutionObjects = NULL;
	}

	//Clear the level script.
	compiledScripts.clear();
	savedCompiledScripts.clear();
	initialCompiledScripts.clear();

	//Clear the block script.
	for (auto block : levelObjects){
	block->compiledScripts.clear();
	}
	for (auto block : levelObjectsSave){
	block->compiledScripts.clear();
	}
	for (auto block : levelObjectsInitial){
	block->compiledScripts.clear();
	}
	} else if (save) {
	//Create a new script environment.
	getScriptExecutor()->reset(true);

	//Reset some variables.
	scriptSaveState = LUA_REFNIL;
	if (scriptExecutorSaved.savedDelayExecutionObjects) {
	// Set the state to NULL since the state is already destroyed. This prevents the destructor to call luaL_unref.
	scriptExecutorSaved.savedDelayExecutionObjects->state = NULL;
	delete scriptExecutorSaved.savedDelayExecutionObjects;
	scriptExecutorSaved.savedDelayExecutionObjects = NULL;
	}

	//Recompile the level script.
	compiledScripts.clear();
	savedCompiledScripts.clear();
	initialCompiledScripts.clear();
	for (auto it = scripts.begin(); it != scripts.end(); ++it){
	int index = getScriptExecutor()->compileScript(it->second);
	compiledScripts[it->first] = index;
	lua_rawgeti(getScriptExecutor()->getLuaState(), LUA_REGISTRYINDEX, index);
	savedCompiledScripts[it->first] = luaL_ref(getScriptExecutor()->getLuaState(), LUA_REGISTRYINDEX);
	lua_rawgeti(getScriptExecutor()->getLuaState(), LUA_REGISTRYINDEX, index);
	initialCompiledScripts[it->first] = luaL_ref(getScriptExecutor()->getLuaState(), LUA_REGISTRYINDEX);
	}

	//Check if <levelname>.lua is present.
	{
	std::string s = scriptFile;
	if (s.empty() && !levelFile.empty() && levelFile[0] != '?') {
	s = levelFile;
	size_t lp = s.find_last_of('.');
	if (lp != std::string::npos) {
	s = s.substr(0, lp);
	}
	s += ".lua";
	}

	int index = LUA_REFNIL;

	//Now compile the file.
	if (!s.empty()) {
	if (s[0] == '?') {
	index = getScriptExecutor()->compileScript(s.substr(1));
	} else {
	FILE *f = fopen(s.c_str(), "r");
	if (f) {
	fclose(f);
	index = getScriptExecutor()->compileFile(s);
	}
	}
	}

	if (index != LUA_REFNIL) {
	compiledScripts[LevelEvent_BeforeCreate] = index;
	lua_rawgeti(getScriptExecutor()->getLuaState(), LUA_REGISTRYINDEX, index);
	savedCompiledScripts[LevelEvent_BeforeCreate] = luaL_ref(getScriptExecutor()->getLuaState(), LUA_REGISTRYINDEX);
	lua_rawgeti(getScriptExecutor()->getLuaState(), LUA_REGISTRYINDEX, index);
	initialCompiledScripts[LevelEvent_BeforeCreate] = luaL_ref(getScriptExecutor()->getLuaState(), LUA_REGISTRYINDEX);
	}
	}

	//Recompile the block script.
	for (auto block : levelObjects){
	block->compiledScripts.clear();
	}
	for (auto block : levelObjectsSave){
	block->compiledScripts.clear();
	}
	for (auto block : levelObjectsInitial) {
	block->compiledScripts.clear();
	for (auto it = block->scripts.begin(); it != block->scripts.end(); ++it){
	int index = getScriptExecutor()->compileScript(it->second);
	block->compiledScripts[it->first] = index;
	}
	}
	} else {
	assert(getScriptExecutor());

	//Do a soft reset.
	getScriptExecutor()->reset(false);

	//Restore the level script to initial state.
	copyCompiledScripts(getScriptExecutor()->getLuaState(), initialCompiledScripts, compiledScripts);

	//NOTE: We don't need to restore the block script since it will be restored automatically when the block array is copied.
	}

	//We reset levelObjects here since we need to wait the compiledScripts being initialized.
	copyLevelObjects(levelObjectsInitial, levelObjects, true);
	if (save) {
	copyLevelObjects(levelObjectsInitial, levelObjectsSave, false);
	}

	//Also reset the last checkpoint so set it to NULL.
	if (save)
	objLastCheckPoint = NULL;

	//Send GameObjectEvent_OnCreate event to the script
	for (auto block : levelObjects) {
	block->onEvent(GameObjectEvent_OnCreate);
	}

	//Call the level's onCreate event.
	executeScript(LevelEvent_BeforeCreate);
	executeScript(LevelEvent_OnCreate);

	//Close exit(s) if there are any collectables
	if (totalCollectables>0){
	for (auto block : levelObjects){
	if (block->type == TYPE_EXIT){
	block->onEvent(GameObjectEvent_OnSwitchOff);
	}
	}
	}

	//Hide the cursor (if not the leveleditor).
	if(stateID!=STATE_LEVEL_EDITOR)
	SDL_ShowCursor(SDL_DISABLE);
	}

	void Game::executeScript(int eventType){
	map<int,int>::iterator it;

	//Check if there's a script for the given event.
	it=compiledScripts.find(eventType);
	if(it!=compiledScripts.end()){
	//There is one so execute it.
	getScriptExecutor()->executeScript(it->second);
	}
	}

	void Game::broadcastObjectEvent(int eventType,int objectType,const char* id,GameObject* target){
	//Create a typeGameObjectEvent that can be put into the queue.
	typeGameObjectEvent e;
	//Set the event type.
	e.eventType=eventType;
	//Set the object type.
	e.objectType=objectType;
	//By default flags=0.
	e.flags=0;
	//Unless there's an id.
	if(id){
	//Set flags to 0x1 and set the id.
	e.flags\|=1;
	e.id=id;
	}
	//Or there's a target given.
	if(target)
	e.target=target;
	else
	e.target=NULL;

	//Add the event to the queue.
	eventQueue.push_back(e);
	}

	void Game::getCurrentLevelAutoSaveRecordPath(std::string &bestTimeFilePath,std::string &bestRecordingFilePath,bool createPath){
	levels->getLevelAutoSaveRecordPath(-1,bestTimeFilePath,bestRecordingFilePath,createPath);
	}

	void Game::gotoNextLevel(ImageManager& imageManager, SDL_Renderer& renderer){
	//Goto the next level.
	levels->nextLevel();

	//Check if the level exists.
	if(levels->getCurrentLevel()<levels->getLevelCount()){
	setNextState(STATE_GAME);
	}else{
	if(!levels->congratulationText.empty()){
	msgBox(imageManager,renderer,_CC(levels->getDictionaryManager(),levels->congratulationText),MsgBoxOKOnly,_("Congratulations"));
	}else{
	msgBox(imageManager,renderer,_("You have finished the levelpack!"),MsgBoxOKOnly,_("Congratulations"));
	}
	//Now go back to the levelselect screen.
	setNextState(STATE_LEVEL_SELECT);
	//And set the music back to menu.
	getMusicManager()->playMusic("menu");
	}
	}

	void Game::GUIEventCallback_OnEvent(ImageManager& imageManager,SDL_Renderer& renderer, string name,GUIObject* obj,int eventType){
	if(name=="cmdMenu"){
	setNextState(STATE_LEVEL_SELECT);

	//And change the music back to the menu music.
	getMusicManager()->playMusic("menu");
	}else if(name=="cmdRestart"){
	//Clear the gui.
	if(GUIObjectRoot){
	delete GUIObjectRoot;
	GUIObjectRoot=NULL;
	}

	interlevel=false;

	//And reset the game.
	//NOTE: We don't need to clear the save game because in level replay the game won't be saved (??)
	//TODO: it seems work (??); I'll see if it introduce bugs
	reset(false, false);
	}else if(name=="cmdNext"){
	//No matter what, clear the gui.
	if(GUIObjectRoot){
	delete GUIObjectRoot;
	GUIObjectRoot=NULL;
	}

	//And goto the next level.
	gotoNextLevel(imageManager,renderer);
	}
	}

	void Game::invalidateNotificationTexture(Block *block) {
	if (block == NULL \|\| block == notificationTexture.getId()) {
	notificationTexture.update(NULL, NULL);
	}
	}

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