Block.cpp
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Block.cpp
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	/*
	* Copyright (C) 2011-2012 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 "GameObjects.h"
	#include "Game.h"
	#include "Player.h"
	#include "Block.h"
	#include "Functions.h"
	#include "Globals.h"
	#include <iostream>
	#include <stdlib.h>
	#include <stdio.h>
	using namespace std;

	Block::Block(int x,int y,int type,Game* parent):
	GameObject(parent),
	temp(0),
	tempSave(0),
	flags(0),
	flagsSave(0),
	dx(0),
	xSave(0),
	dy(0),
	ySave(0),
	loop(true),
	editorFlags(0)
	{
	//First set the location and size of the box.
	//The default size is 50x50.
	box.x=x;
	box.y=y;
	box.w=50;
	box.h=50;

	//Also set the
	boxBase.x=x;
	boxBase.y=y;

	//Set the type.
	this->type=type;

	//Some types need type specific code.
	if(type==TYPE_START_PLAYER){
	//This is the player start so set the player here.
	//We center the player, the player is 23px wide.
	parent->player.setPosition(box.x+(box.w-23)/2,box.y);
	parent->player.fx=box.x+(box.w-23)/2;
	parent->player.fy=box.y;
	}else if(type==TYPE_START_SHADOW){
	//This is the shadow start so set the shadow here.
	//We center the shadow, the shadow is 23px wide.
	parent->shadow.setPosition(box.x+(box.w-23)/2,box.y);
	parent->shadow.fx=box.x+(box.w-23)/2;
	parent->shadow.fy=box.y;
	}

	objCurrentStand=NULL;
	inAir=true;
	xVel=yVel=xVelBase=yVelBase=0;

	//And load the appearance.
	objThemes.getBlock(type)->createInstance(&appearance);
	}

	Block::~Block(){}

	void Block::show(){
	//Check if the block is visible.
	if(checkCollision(camera,box)==true \|\| (stateID==STATE_LEVEL_EDITOR && checkCollision(camera,boxBase)==true)){
	SDL_Rect r={0,0,50,50};

	//What we need to draw depends on the type of block.
	switch(type){
	case TYPE_CHECKPOINT:
	//Check if the checkpoint is last used.
	if(parent!=NULL && parent->objLastCheckPoint==this){
	if(!temp) appearance.changeState("activated");
	temp=1;
	}else{
	if(temp) appearance.changeState("default");
	temp=0;
	}
	break;
	case TYPE_CONVEYOR_BELT:
	case TYPE_SHADOW_CONVEYOR_BELT:
	if(temp){
	r.x=50-temp;
	r.w=temp;
	appearance.draw(screen,box.x-camera.x-50+temp,box.y-camera.y,&r);
	r.x=0;
	r.w=50-temp;
	appearance.draw(screen,box.x-camera.x+temp,box.y-camera.y,&r);
	return;
	}
	break;
	case TYPE_NOTIFICATION_BLOCK:
	if(message.empty()==false){
	appearance.draw(screen, box.x - camera.x, box.y - camera.y);
	return;
	}
	break;
	}

	//Always draw the base.
	appearance.drawState("base", screen, boxBase.x - camera.x, boxBase.y - camera.y);
	//Now draw normal.
	appearance.draw(screen, box.x - camera.x, box.y - camera.y);

	//Some types need to draw something on top of the base/default.
	switch(type){
	case TYPE_BUTTON:
	if(flags&4){
	if(temp<5) temp++;
	}else{
	if(temp>0) temp--;
	}
	appearance.drawState("button",screen,box.x-camera.x,box.y-camera.y-5+temp);
	break;
	}
	}
	}

	SDL_Rect Block::getBox(int boxType){
	SDL_Rect r={0,0,0,0};
	switch(boxType){
	case BoxType_Base:
	return boxBase;
	case BoxType_Previous:
	switch(type){
	case TYPE_MOVING_BLOCK:
	case TYPE_MOVING_SHADOW_BLOCK:
	case TYPE_MOVING_SPIKES:
	case TYPE_PUSHABLE:
	r.x=box.x-dx;
	r.y=box.y-dy;
	r.w=box.w;
	r.h=box.h;
	return r;
	}
	return box;
	case BoxType_Delta:
	switch(type){
	case TYPE_MOVING_BLOCK:
	case TYPE_MOVING_SHADOW_BLOCK:
	case TYPE_MOVING_SPIKES:
	case TYPE_PUSHABLE:
	r.x=dx;
	r.y=dy;
	break;
	}
	return r;
	case BoxType_Velocity:
	switch(type){
	case TYPE_MOVING_BLOCK:
	case TYPE_MOVING_SHADOW_BLOCK:
	case TYPE_MOVING_SPIKES:
	case TYPE_PUSHABLE:
	r.x=dx;
	r.y=dy;
	break;
	case TYPE_CONVEYOR_BELT:
	case TYPE_SHADOW_CONVEYOR_BELT:
	r.x=(flags&1)?0:dx;
	break;
	}
	return r;
	case BoxType_Current:
	return box;
	}
	return r;
	}

	void Block::setPosition(int x,int y){
	box.x=x;
	box.y=y;
	boxBase.x=x;
	boxBase.y=y;
	}

	void Block::saveState(){
	tempSave=temp;
	flagsSave=flags;
	xSave=box.x-boxBase.x;
	ySave=box.y-boxBase.y;
	appearance.saveAnimation();

	//In case of a pushable block we need to save some more.
	if(type==TYPE_PUSHABLE){
	xVelSave=xVel;
	yVelSave=yVel;
	xVelBaseSave=xVelBase;
	yVelBaseSave=yVelBase;
	}
	}

	void Block::loadState(){
	temp=tempSave;
	flags=flagsSave;
	switch(type){
	case TYPE_PUSHABLE:
	xVel=xVelSave;
	yVel=yVelSave;
	xVelBase=xVelBaseSave;
	yVelBase=yVelBaseSave;
	//NOTE: Fallthrough is intended.
	case TYPE_MOVING_BLOCK:
	case TYPE_MOVING_SHADOW_BLOCK: //FIXME: Shouldn't moving spikes be here as well (???)
	box.x=boxBase.x+xSave;
	box.y=boxBase.y+ySave;
	break;
	}
	appearance.loadAnimation();
	}

	void Block::reset(bool save){
	//We need to reset so we clear the temp and saves.
	if(save){
	temp=tempSave=xSave=ySave=0;
	flags=flagsSave=editorFlags;
	}else{
	temp=0;
	flags=editorFlags;
	}

	switch(type){
	case TYPE_MOVING_BLOCK:
	case TYPE_MOVING_SHADOW_BLOCK:
	case TYPE_MOVING_SPIKES:
	case TYPE_PUSHABLE:
	box.x=boxBase.x;
	box.y=boxBase.y;
	break;
	}
	xVel=yVel=xVelBase=yVelBase=0;

	//Also reset the appearance.
	appearance.resetAnimation(save);
	appearance.changeState("default");

	//If it's a fragile block we need to update the appearance.
	switch(type){
	case TYPE_FRAGILE:
	{
	const char* s=(flags==0)?"default":((flags==1)?"fragile1":((flags==2)?"fragile2":"fragile3"));
	appearance.changeState(s);
	}
	break;
	}
	}


	void Block::playAnimation(int flags){
	//TODO Why int flags????
	switch(type){
	case TYPE_SWAP:
	appearance.changeState("activated");
	break;
	case TYPE_SWITCH:
	temp^=1;
	appearance.changeState(temp?"activated":"default");
	break;
	}
	}

	void Block::onEvent(int eventType){
	//Iterator used to check if the map contains certain entries.
	map<int,Script>::iterator it;

	//Check if the data contains the id block.
	it=scripts.find(eventType);
	if(it!=scripts.end()){
	//Set the id of the block.
	getScriptExecutor()->executeScript(scripts[eventType]);
	return;
	}

	//Event handling.
	switch(eventType){
	case GameObjectEvent_PlayerWalkOn:
	switch(type){
	case TYPE_FRAGILE:
	flags++;
	{
	const char* s=(flags==0)?"default":((flags==1)?"fragile1":((flags==2)?"fragile2":"fragile3"));
	appearance.changeState(s);
	}
	break;
	}
	break;
	case GameObjectEvent_PlayerIsOn:
	switch(type){
	case TYPE_BUTTON:
	dx=1;
	break;
	}
	break;
	case GameObjectEvent_OnToggle:
	switch(type){
	case TYPE_MOVING_BLOCK:
	case TYPE_MOVING_SHADOW_BLOCK:
	case TYPE_MOVING_SPIKES:
	case TYPE_CONVEYOR_BELT:
	case TYPE_SHADOW_CONVEYOR_BELT:
	flags^=1;
	break;
	case TYPE_PORTAL:
	appearance.changeState("activated");
	break;
	case TYPE_COLLECTABLE:
	appearance.changeState("inactive");
	flags=1;
	break;
	}
	break;
	case GameObjectEvent_OnSwitchOn:
	switch(type){
	case TYPE_MOVING_BLOCK:
	case TYPE_MOVING_SHADOW_BLOCK:
	case TYPE_MOVING_SPIKES:
	case TYPE_CONVEYOR_BELT:
	case TYPE_SHADOW_CONVEYOR_BELT:
	flags&=~1;
	break;
	case TYPE_EXIT:
	appearance.changeState("default");
	break;
	}
	break;
	case GameObjectEvent_OnSwitchOff:
	switch(type){
	case TYPE_MOVING_BLOCK:
	case TYPE_MOVING_SHADOW_BLOCK:
	case TYPE_MOVING_SPIKES:
	case TYPE_CONVEYOR_BELT:
	case TYPE_SHADOW_CONVEYOR_BELT:
	flags\|=1;
	break;
	case TYPE_EXIT:
	appearance.changeState("closed");
	break;
	}
	break;
	}
	}

	int Block::queryProperties(int propertyType,Player* obj){
	switch(propertyType){
	case GameObjectProperty_PlayerCanWalkOn:
	switch(type){
	case TYPE_BLOCK:
	case TYPE_MOVING_BLOCK:
	case TYPE_CONVEYOR_BELT:
	case TYPE_BUTTON:
	case TYPE_PUSHABLE:
	return 1;
	case TYPE_SHADOW_BLOCK:
	case TYPE_MOVING_SHADOW_BLOCK:
	case TYPE_SHADOW_CONVEYOR_BELT:
	if(obj!=NULL && obj->isShadow()) return 1;
	break;
	case TYPE_FRAGILE:
	if(flags<3) return 1;
	break;
	}
	break;
	case GameObjectProperty_IsSpikes:
	switch(type){
	case TYPE_SPIKES:
	case TYPE_MOVING_SPIKES:
	return 1;
	}
	break;
	case GameObjectProperty_Flags:
	return flags;
	break;
	default:
	break;
	}
	return 0;
	}

	void Block::getEditorData(std::vector<std::pair<std::string,std::string> >& obj){
	//Every block has an id.
	obj.push_back(pair<string,string>("id",id));

	//Block specific properties.
	switch(type){
	case TYPE_MOVING_BLOCK:
	case TYPE_MOVING_SHADOW_BLOCK:
	case TYPE_MOVING_SPIKES:
	{
	char s[64],s0[64];
	sprintf(s,"%d",(int)movingPos.size());
	obj.push_back(pair<string,string>("MovingPosCount",s));
	obj.push_back(pair<string,string>("disabled",(editorFlags&0x1)?"1":"0"));
	obj.push_back(pair<string,string>("loop",loop?"1":"0"));
	for(unsigned int i=0;i<movingPos.size();i++){
	sprintf(s0+1,"%d",i);
	sprintf(s,"%d",movingPos[i].x);
	s0[0]='x';
	obj.push_back(pair<string,string>(s0,s));
	sprintf(s,"%d",movingPos[i].y);
	s0[0]='y';
	obj.push_back(pair<string,string>(s0,s));
	sprintf(s,"%d",movingPos[i].w);
	s0[0]='t';
	obj.push_back(pair<string,string>(s0,s));
	}
	}
	break;
	case TYPE_CONVEYOR_BELT:
	case TYPE_SHADOW_CONVEYOR_BELT:
	{
	char s[64];
	obj.push_back(pair<string,string>("disabled",(editorFlags&0x1)?"1":"0"));
	sprintf(s,"%d",dx);
	obj.push_back(pair<string,string>("speed",s));
	}
	break;
	case TYPE_PORTAL:
	obj.push_back(pair<string,string>("automatic",(editorFlags&0x1)?"1":"0"));
	obj.push_back(pair<string,string>("destination",destination));
	break;
	case TYPE_BUTTON:
	case TYPE_SWITCH:
	{
	string s;
	switch(editorFlags&0x3){
	case 1:
	s="on";
	break;
	case 2:
	s="off";
	break;
	default:
	s="toggle";
	break;
	}
	obj.push_back(pair<string,string>("behaviour",s));
	}
	break;
	case TYPE_NOTIFICATION_BLOCK:
	{
	string value=message;
	//Change \n with the characters '\n'.
	while(value.find('\n',0)!=string::npos){
	size_t pos=value.find('\n',0);
	value=value.replace(pos,1,"\\n");
	}

	obj.push_back(pair<string,string>("message",value));
	}
	break;
	case TYPE_FRAGILE:
	{
	char s[64];
	sprintf(s,"%d",editorFlags);
	obj.push_back(pair<string,string>("state",s));
	}
	break;
	}
	}

	void Block::setEditorData(std::map<std::string,std::string>& obj){
	//Iterator used to check if the map contains certain entries.
	map<string,string>::iterator it;

	//Check if the data contains the id block.
	it=obj.find("id");
	if(it!=obj.end()){
	//Set the id of the block.
	id=obj["id"];
	}

	//Block specific properties.
	switch(type){
	case TYPE_MOVING_BLOCK:
	case TYPE_MOVING_SHADOW_BLOCK:
	case TYPE_MOVING_SPIKES:
	{
	//Make sure that the editor data contains MovingPosCount.
	it=obj.find("MovingPosCount");
	if(it!=obj.end()){
	char s0[64];
	int m=0;
	m=atoi(obj["MovingPosCount"].c_str());
	movingPos.clear();
	for(int i=0;i<m;i++){
	SDL_Rect r={0,0,0,0};
	sprintf(s0+1,"%d",i);
	s0[0]='x';
	r.x=atoi(obj[s0].c_str());
	s0[0]='y';
	r.y=atoi(obj[s0].c_str());
	s0[0]='t';
	r.w=atoi(obj[s0].c_str());
	movingPos.push_back(r);
	}
	}

	//Check if the disabled key is in the data.
	it=obj.find("disabled");
	if(it!=obj.end()){
	string s=obj["disabled"];
	editorFlags=0;
	if(s=="true" \|\| atoi(s.c_str())) editorFlags\|=0x1;
	flags=flagsSave=editorFlags;
	}

	//Check if the loop key is in the data.
	it=obj.find("loop");
	if(it!=obj.end()){
	string s=obj["loop"];
	loop=false;
	if(s=="true" \|\| atoi(s.c_str()))
	loop=true;
	}

	}
	break;
	case TYPE_CONVEYOR_BELT:
	case TYPE_SHADOW_CONVEYOR_BELT:
	{
	//Check if there's a speed key in the editor data.
	it=obj.find("speed");
	if(it!=obj.end()){
	dx=atoi(obj["speed"].c_str());
	}

	//Check if the disabled key is in the data.
	it=obj.find("disabled");
	if(it!=obj.end()){
	string s=obj["disabled"];
	editorFlags=0;
	if(s=="true" \|\| atoi(s.c_str())) editorFlags\|=0x1;
	flags=flagsSave=editorFlags;
	}
	}
	break;
	case TYPE_PORTAL:
	{
	//Check if the automatic key is in the data.
	it=obj.find("automatic");
	if(it!=obj.end()){
	string s=obj["automatic"];
	editorFlags=0;
	if(s=="true" \|\| atoi(s.c_str())) editorFlags\|=0x1;
	flags=flagsSave=editorFlags;
	}

	//Check if the destination key is in the data.
	it=obj.find("destination");
	if(it!=obj.end()){
	destination=obj["destination"];
	}
	}
	break;
	case TYPE_BUTTON:
	case TYPE_SWITCH:
	{
	//Check if the behaviour key is in the data.
	it=obj.find("behaviour");
	if(it!=obj.end()){
	string s=obj["behaviour"];
	editorFlags=0;
	if(s=="on" \|\| s==_("On")) editorFlags\|=1;
	else if(s=="off" \|\| s==_("Off")) editorFlags\|=2;
	flags=flagsSave=editorFlags;
	}
	}
	break;
	case TYPE_NOTIFICATION_BLOCK:
	{
	//Check if the message key is in the data.
	it=obj.find("message");
	if(it!=obj.end()){
	message=obj["message"];
	//Change the characters '\n' to a real \n
	while(message.find("\\n")!=string::npos){
	message=message.replace(message.find("\\n"),2,"\n");
	}
	}
	}
	break;
	case TYPE_FRAGILE:
	{
	//Check if the status is in the data.
	it=obj.find("state");
	if(it!=obj.end()){
	editorFlags=atoi(obj["state"].c_str());
	flags=editorFlags;
	{
	const char* s=(flags==0)?"default":((flags==1)?"fragile1":((flags==2)?"fragile2":"fragile3"));
	appearance.changeState(s);
	}
	}
	}
	}
	}

	std::string Block::getEditorProperty(std::string property){
	//First get the complete editor data.
	vector<pair<string,string> > objMap;
	vector<pair<string,string> >::iterator it;
	getEditorData(objMap);

	//Loop through the entries.
	for(it=objMap.begin();it!=objMap.end();++it){
	if(it->first==property)
	return it->second;
	}

	//Nothing found.
	return "";
	}

	void Block::setEditorProperty(std::string property,std::string value){
	//Create a map to hold the property.
	std::map<std::string,std::string> editorData;
	editorData[property]=value;

	//And call the setEditorData method.
	setEditorData(editorData);
	}


	/*//debug
	int block_test_count=-1;
	bool block_test_only=false;*/

	void Block::move(){
	appearance.updateAnimation();
	switch(type){
	case TYPE_MOVING_BLOCK:
	case TYPE_MOVING_SHADOW_BLOCK:
	case TYPE_MOVING_SPIKES:
	{
	/*//debug
	if(block_test_only \|\| parent->time==416){
	cout<<"Time:"<<(parent->time)<<" Recorded:"<<block_test_count<<" Coord:"<<box.x<<","<<box.y<<endl;
	block_test_only=false;
	}*/

	if(!(flags&0x1)) temp++;
	int t=temp;
	SDL_Rect r0={0,0,0,0},r1;
	dx=0;
	dy=0;
	for(unsigned int i=0;i<movingPos.size();i++){
	r1.x=movingPos[i].x;
	r1.y=movingPos[i].y;
	r1.w=movingPos[i].w;
	if(t==0&&r1.w==0){
	r1.w=1;
	flags\|=0x1;
	}
	if(t>=0 && t<(int)r1.w){
	int newX=boxBase.x+(int)(float(r0.x)+(float(r1.x)-float(r0.x))*float(t)/float(r1.w));
	int newY=boxBase.y+(int)(float(r0.y)+(float(r1.y)-float(r0.y))*float(t)/float(r1.w));
	dx=newX-box.x;
	dy=newY-box.y;
	box.x=newX;
	box.y=newY;
	return;
	}else if(t==(int)r1.w){
	//If the time is the time of the movingPosition then set it equal to the location.
	//We do this to prevent a slight edge between normal blocks and moving blocks.
	int newX=boxBase.x+r1.x;
	int newY=boxBase.y+r1.y;
	dx=newX-box.x;
	dy=newY-box.y;
	box.x=newX;
	box.y=newY;
	return;
	}
	t-=r1.w;
	r0.x=r1.x;
	r0.y=r1.y;
	}
	//Only reset the stuff when we're looping.
	if(loop){
	temp=0;
	if(!movingPos.empty() && movingPos.back().x==0 && movingPos.back().y==0){
	dx=boxBase.x-box.x;
	dy=boxBase.y-box.y;
	}
	box.x=boxBase.x;
	box.y=boxBase.y;
	}
	}
	break;
	case TYPE_BUTTON:
	{
	int new_flags=dx?4:0;
	if((flags^new_flags)&4){
	flags=(flags&~4)\|new_flags;
	if(parent && (new_flags \|\| (flags&3)==0)){
	//Make sure that id isn't empty.
	if(!id.empty()){
	parent->broadcastObjectEvent(0x10000\|(flags&3),-1,id.c_str());
	}else{
	cerr<<"Warning: invalid button id!"<<endl;
	}
	}
	}
	dx=0;
	}
	break;
	case TYPE_CONVEYOR_BELT:
	case TYPE_SHADOW_CONVEYOR_BELT:
	if((flags&1)==0){
	temp=(temp+dx)%50;
	if(temp<0) temp+=50;
	}
	break;
	case TYPE_PUSHABLE:
	{
	objCurrentStand=NULL;

	if(inAir==true){
	yVel+=1;

	//Cap fall speed to 13.
	if(yVel>13){
	yVel=13;
	}
	}

	//An array that will hold all the GameObjects that are involved in the collision/movement.
	vector<GameObject*> objects;

	//Determine the collision frame.
	SDL_Rect frame={box.x,box.y,box.w,box.h};
	//Keep the horizontal movement of the player in mind.
	if(xVel+xVelBase>=0) {
	frame.w+=(xVel+xVelBase);
	}else{
	frame.x+=(xVel+xVelBase);
	frame.w-=(xVel+xVelBase);
	}
	//And the vertical movement.
	if(yVel+yVelBase>=0) {
	frame.h+=(yVel+yVelBase);
	}else{
	frame.y+=(yVel+yVelBase);
	frame.h-=(yVel+yVelBase);
	}

	//Loop through the game objects.
	for(unsigned int o=0; o<parent->levelObjects.size(); o++){
	//Check if the player can collide with this game object.
	//NOTE: As opposed to the player and the shadow, pushable blocks can collide with spikes.
	if(!parent->levelObjects[o]->queryProperties(GameObjectProperty_PlayerCanWalkOn,NULL)
	&& !(parent->levelObjects[o]->type==TYPE_SPIKES \|\| parent->levelObjects[o]->type==TYPE_MOVING_SPIKES))
	continue;

	if(parent->levelObjects[o]==this)
	continue;

	//Check if the block is inside the frame.
	if(checkCollision(frame,parent->levelObjects[o]->getBox())){
	objects.push_back(parent->levelObjects[o]);
	continue;
	}

	//Additional checks need to be made for moving blocks.
	if(parent->levelObjects[o]->type==TYPE_MOVING_BLOCK \|\| parent->levelObjects[o]->type==TYPE_MOVING_SHADOW_BLOCK \|\| parent->levelObjects[o]->type==TYPE_MOVING_SPIKES) {
	//Check the movement of these blocks to see if they will collide.
	SDL_Rect v=parent->levelObjects[o]->getBox(BoxType_Velocity);
	SDL_Rect r=parent->levelObjects[o]->getBox();
	r.x+=v.x;
	r.y+=v.y;
	if(checkCollision(frame,r)) {
	objects.push_back(parent->levelObjects[o]);
	}
	}
	}

	//The current location of the player, used to set the player back if he's squashed to prevent displacement.
	int lastX=box.x;
	int lastY=box.y;

	//Move the player.
	box.x+=xVel;

	//Loop through the objects related to the (horizontal) collision/movement.
	for(unsigned int o=0; o<objects.size(); o++){
	//Get the collision box of the levelobject.
	SDL_Rect r=objects[o]->getBox();

	//Check collision with the player.
	//NOTE: Although the object is inside the collision frame we need to check if it collides with the player box (xVel applied).
	if(checkCollision(box,r)){
	//We have collision, get the velocity of the box.
	SDL_Rect v=objects[o]->getBox(BoxType_Delta);

	//Check on which side of the box the player is.
	if(box.x + box.w/2 <= r.x + r.w/2){
	//The left side of the block.
	if(xVel+xVelBase>v.x){
	if(box.x>r.x-box.w){
	if(objects[o]->type==TYPE_PUSHABLE){
	//box.x=r.x-box.w+(xVel+xVelBase)/2;
	(dynamic_cast<Block*>(objects[o]))->xVel=(xVel+xVelBase)/2;
	}
	box.x=r.x-box.w;
	}
	}
	}else{
	//The right side of the block.
	if(xVel+xVelBase<v.x){
	if(box.x<r.x+r.w){
	if(objects[o]->type==TYPE_PUSHABLE){
	//box.x=r.x-box.w+(xVel+xVelBase)/2;
	(dynamic_cast<Block*>(objects[o]))->xVel=(xVel+xVelBase)/2;
	}
	box.x=r.x+r.w;
	}
	}
	}
	}
	}

	//Now apply the yVel. (gravity, jumping, etc..)
	box.y+=yVel;

	//Assume we are in air and are able to move unless proven otherwise (???).
	inAir=true;

	//Loop through all the objects related to the (vertical) collision/movement.
	for(unsigned int o=0; o<objects.size(); o++){
	//Get the collision box of the levelobject.
	SDL_Rect r=objects[o]->getBox();

	//NOTE: Although the object is inside the collision frame we need to check if it collides with the player box (yVel applied).
	if(checkCollision(box,r)){
	//Get the velocity of the gameobject.
	SDL_Rect v=objects[o]->getBox(BoxType_Delta);

	//Check which side of the object the player is.
	if(box.y+box.h/2<=r.y+r.h/2){
	if(yVel>=v.y \|\| yVel>=0){
	inAir=false;
	box.y=r.y-box.h;
	yVel=1;

	objCurrentStand=objects[o];
	}
	}else{
	//FIXME: The player can have a yVel of 0 and get squashed if he is standing on the other.
	if(yVel<=v.y+1){
	yVel=v.y>0?v.y:0;
	if(box.y<r.y+r.h){
	box.y=r.y+r.h;
	}
	}
	}
	}
	}

	dx=box.x-lastX;
	dy=box.y-lastY;
	xVel=0;
	}
	break;
	}
	}

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