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Game.cpp
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/****************************************************************************
** Copyright (C) 2011 Luka Horvat <redreaper132 at gmail.com>
** Copyright (C) 2011 Edward Lii <edward_iii at myway.com>
** Copyright (C) 2011 O. Bahri Gordebak <gordebak at gmail.com>
**
**
** This file may be used under the terms of the GNU General Public
** License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of
** this file.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** You should have received a copy of the GNU General Public License
** along with this program. If not, see <http://www.gnu.org/licenses/>.
**
****************************************************************************/
#include "GameState.h"
#include "Globals.h"
#include "Functions.h"
#include "FileManager.h"
#include "GameObjects.h"
#include "ThemeManager.h"
#include "Objects.h"
#include "Game.h"
#include "TreeStorageNode.h"
#include "POASerializer.h"
#include <fstream>
#include <iostream>
#include <sstream>
#include <vector>
#include <map>
#include <stdio.h>
#include <stdlib.h>
#include <string.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",
};
map<string,int> Game::blockNameMap;
Game::Game(bool loadLevell):isReset(false),background(NULL),
customTheme(NULL),gameTipIndex(0),
player(this),shadow(this),objLastCheckPoint(NULL){
//Reserve the memory for the GameObject tips.
memset(bmTips,0,sizeof(bmTips));
//If we should load the level then load it.
if(loadLevell){
loadLevel(levels.getLevelpackPath()+levels.getLevelFile());
levels.saveLevelProgress();
}
}
Game::~Game(){
//Simply call our destroy method.
destroy();
}
void Game::destroy(){
//Loop through the levelObjects and delete them.
for(unsigned int i=0;i<levelObjects.size();i++)
delete levelObjects[i];
//Done now clear the levelObjects vector.
levelObjects.clear();
//Clear the name and the editor data.
levelName.clear();
levelFile.clear();
editorData.clear();
//Loop through the tips.
for(int i=0;i<TYPE_MAX;i++){
//If it exist free the SDL_Surface.
if(bmTips[i])
SDL_FreeSurface(bmTips[i]);
}
memset(bmTips,0,sizeof(bmTips));
//Remove everything from the themeManager.
background=NULL;
if(customTheme)
objThemes.removeTheme();
customTheme=NULL;
}
void Game::loadLevel(string fileName){
//Create a TreeStorageNode that will hold the loaded data.
TreeStorageNode obj;
{
POASerializer objSerializer;
string s=fileName;
//Parse the file.
if(!objSerializer.loadNodeFromFile(s.c_str(),&obj,true)){
cout<<"Can't load level file "<<s<<endl;
return;
}
}
//Make sure there's nothing left from any previous levels.
destroy();
//Temp var used for block locations.
SDL_Rect box;
//Set the level dimensions to the default, it will probably be changed by the editorData,
//but 800x600 is a fallback.
LEVEL_WIDTH=800;
LEVEL_HEIGHT=600;
//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.
LEVEL_WIDTH=atoi(i->second[0].c_str());
LEVEL_HEIGHT=atoi(i->second[1].c_str());
}
}else if(i->second.size()>0){
//Any other data will be put into the editorData.
editorData[i->first]=i->second[0];
}
}
//Get the theme.
{
//If a theme is configured then load it.
string theme=processFileName(getSettings()->getValue("theme"));
//Check if it isn't the default theme, because if it is it's already loaded.
if(fileNameFromPath(theme)!="default") {
customTheme=objThemes.appendThemeFromFile(theme+"/theme.mnmstheme");
}
//Check if level themes are enabled.
if(getSettings()->getBoolValue("leveltheme")) {
string &s=editorData["theme"];
if(!s.empty()){
customTheme=objThemes.appendThemeFromFile(processFileName(theme)+"/theme.mnmstheme");
}
}
//Set the Appearance of the player and the shadow.
objThemes.getCharacter(false)->createInstance(&player.appearance);
objThemes.getCharacter(true)->createInstance(&shadow.appearance);
}
for(unsigned int i=0;i<obj.subNodes.size();i++){
TreeStorageNode* obj1=obj.subNodes[i];
if(obj1==NULL) continue;
if(obj1->name=="tile" && obj1->value.size()>=3){
int objectType=blockNameMap[obj1->value[0]];
box.x=atoi(obj1->value[1].c_str());
box.y=atoi(obj1->value[2].c_str());
map<string,string> obj;
for(map<string,vector<string> >::iterator i=obj1->attributes.begin();i!=obj1->attributes.end();i++){
if(i->second.size()>0) obj[i->first]=i->second[0];
}
levelObjects.push_back( new Block ( box.x, box.y, objectType, this) );
levelObjects.back()->setEditorData(obj);
}
}
//Set the levelName to the name of the current level.
levelName=editorData["name"];
levelFile=fileName;
//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.
stringstream s;
if(levels.getLevelCount()>1){
s<<"Level "<<(levels.getLevel()+1)<<" ";
}
s<<editorData["name"];
SDL_Color fg={0,0,0,0};
SDL_Color bg={255,255,255,0};
bmTips[0]=TTF_RenderText_Shaded(font,s.str().c_str(),fg,bg);
if(bmTips[0])
SDL_SetAlpha(bmTips[0],SDL_SRCALPHA,160);
}
//Get the background
background=objThemes.getBackground();
if(background)
background->resetAnimation();
}
/////////////EVENT///////////////
void Game::handleEvents(){
//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(event.type==SDL_KEYUP && event.key.keysym.sym==SDLK_ESCAPE){
//Escape means we go one level up, to the level select state.
setNextState(STATE_LEVEL_SELECT);
//Save the progress.
levels.saveLevelProgress();
}
//Check for Ctrl+s.
if(event.type==SDL_KEYDOWN && event.key.keysym.sym==SDLK_s && event.key.keysym.mod==0){
//Stop the music.
//FIXME: Shouldn't we set the setting sound false?
//That will also stop other sounds.
if(Mix_PlayingMusic()==1){
Mix_HaltMusic();
}else{
Mix_PlayMusic(music,-1);
}
}
//Check if 'r' is pressed.
if(event.type==SDL_KEYDOWN && event.key.keysym.sym==SDLK_r){
//Set reset true.
isReset=true;
}
if(event.type==SDL_KEYDOWN && event.key.keysym.sym == SDLK_e && (event.key.keysym.mod & KMOD_CTRL) && stateID != STATE_LEVEL_EDITOR){
//TODO: Fix this.
setNextState(STATE_LEVEL_EDITOR);
}
}
/////////////////LOGIC///////////////////
void Game::logic(){
//Let the player store his move, if recording.
player.shadowSetState();
//Let the player give his recording to the shadow, if configured.
player.shadowGiveState(&shadow);
//Let the player jump.
player.jump();
//Let him move.
player.move(levelObjects);
//And let the camera follow him.
player.setMyCamera();
//Now let the shadow decide his move, if he's playing a recording.
shadow.moveLogic();
//Let the shadow jump.
shadow.jump();
//Let the shadow move.
shadow.move(levelObjects);
//Some levelObjects can move so update them.
for(unsigned int i=0;i<levelObjects.size();i++){
levelObjects[i]->move();
}
//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.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){
Block *obj=dynamic_cast<Block*>(levelObjects[i]);
if(obj!=NULL && obj->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();
//Check collision and stuff for the shadow and player.
player.otherCheck(&shadow);
shadow.otherCheck(&player);
//Check if we should reset.
if(isReset)
reset();
isReset=false;
}
/////////////////RENDER//////////////////
void Game::render(){
//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();
}
//Check if the background isn't null.
if(bg){
//It isn't so draw it.
bg->draw(screen);
//And if it's the loaded background then also update the animation.
//FIXME: Updating the animation in the render method?
if(bg==background)
bg->updateAnimation();
}else{
//There's no background so fill the screen with white.
SDL_Rect r={0,0,SCREEN_WIDTH,SCREEN_HEIGHT};
SDL_FillRect(screen,&r,-1);
}
}
//Now we draw the levelOBjects.
for(unsigned int o=0; o<levelObjects.size(); o++){
levelObjects[o]->show();
}
//Followed by the player and the shadow.
player.show();
shadow.show();
//Show the levelName if it isn't the level editor.
if(stateID!=STATE_LEVEL_EDITOR && bmTips[0]!=NULL){
applySurface(0,SCREEN_HEIGHT-bmTips[0]->h,bmTips[0],screen,NULL);
}
//Check if there's a tooltip.
//NOTE: gameTipIndex 0 is used for the levelName, 1 for restart text, 2 for restart+checkpoint.
if(gameTipIndex>2 && gameTipIndex<TYPE_MAX){
//Check if there's a tooltip for the type.
if(bmTips[gameTipIndex]==NULL){
//There isn't thus make it.
const char* s=NULL;
switch(gameTipIndex){
case TYPE_CHECKPOINT:
s="Press DOWN key to save the game.";
break;
case TYPE_SWAP:
s="Press DOWN key to swap the position of player and shadow.";
break;
case TYPE_SWITCH:
s="Press DOWN key to activate the switch.";
break;
case TYPE_PORTAL:
s="Press DOWN key to teleport.";
break;
case TYPE_NOTIFICATION_BLOCK:
s="Press DOWN key to read the message.";
break;
}
//If we have a string then it's a supported GameObject type.
if(s!=NULL){
SDL_Color fg={0,0,0,0},bg={255,255,255,0};
bmTips[gameTipIndex]=TTF_RenderText_Shaded(fontSmall,s,fg,bg);
SDL_SetAlpha(bmTips[gameTipIndex],SDL_SRCALPHA,160);
}
}
//We already have a gameTip for this type so draw it.
if(bmTips[gameTipIndex]!=NULL){
applySurface(0,0,bmTips[gameTipIndex],screen,NULL);
}
}
//Set the gameTip to 0.
gameTipIndex=0;
//Check if the player is dead, meaning we draw
if(player.dead){
//The player is dead, check if there's a state that can be loaded.
SDL_Surface* bm=NULL;
if(player.canLoadState()){
//Now check if the tip is already made, if not make it.
if(bmTips[2]==NULL){
SDL_Color fg={0,0,0,0},bg={255,255,255,0};
bmTips[2]=TTF_RenderText_Shaded(fontSmall,
"Press R to restart current level or press F3 to load the game.",
fg,bg);
SDL_SetAlpha(bmTips[2],SDL_SRCALPHA,160);
}
bm=bmTips[2];
}else{
//Now check if the tip is already made, if not make it.
if(bmTips[1]==NULL){
SDL_Color fg={0,0,0,0},bg={255,255,255,0};
bmTips[1]=TTF_RenderText_Shaded(fontSmall,
"Press R to restart current level.",
fg,bg);
SDL_SetAlpha(bmTips[1],SDL_SRCALPHA,160);
}
bm=bmTips[1];
}
//Draw the tip.
if(bm!=NULL)
applySurface(0,0,bm,screen,NULL);
}
}
bool Game::saveState(){
//Check if the player and shadow can save the current state.
if(player.canSaveState() && shadow.canSaveState()){
//Let the player and the shadow save their state.
player.saveState();
shadow.saveState();
//Save other state, for example moving blocks.
for(unsigned int i=0;i<levelObjects.size();i++){
levelObjects[i]->saveState();
}
//Also save the background animation, if any.
if(background)
background->saveAnimation();
//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()){
//Let the player and the shadow load their state.
player.loadState();
shadow.loadState();
//Load other state, for example moving blocks.
for(unsigned int i=0;i<levelObjects.size();i++){
levelObjects[i]->loadState();
}
//Also load the background animation, if any.
if(background)
background->loadAnimation();
//Return true.
return true;
}
//We can't load the state so return false.
return false;
}
void Game::reset(){
//We need to reset the game so we also reset the player and the shadow.
player.reset();
shadow.reset();
//There is no last checkpoint so set it to NULL.
objLastCheckPoint=NULL;
//Reset other state, for example moving blocks.
for(unsigned int i=0;i<levelObjects.size();i++){
levelObjects[i]->reset();
}
//Also reset the background animation, if any.
if(background)
background->resetAnimation();
}
void Game::broadcastObjectEvent(int eventType,int objectType,const char* id){
//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;
}
//Add the event to the queue.
eventQueue.push_back(e);
}

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