SavedGames.cpp

00001 #include "SavedGames.h"
00002 
00003 SavedGames::SavedGames() {
00004     
00005 }
00006 
00007 SavedGames::~SavedGames() {
00008     
00009 }
00010 
00011 bool SavedGames::save_test(Direction d_,SDFileSystem &sd, N5110 &lcd) {
00012     
00013     // Objects required for test 
00014     
00015     printf("Data save = %d  : ",d_);
00016     
00017     // Define input data object and set values
00018     SavedGamesData input_data;
00019     input_data.score = 0;
00020     input_data.lives = 3;
00021     input_data.smart_bombs = 4;
00022     input_data.alien_number = 5;
00023 
00024     // Change the save file
00025     saved_games_scroll(d_);
00026     
00027     add_saved_data(sd, input_data, lcd); 
00028     
00029     // Define output data object
00030     SavedGamesData output_data;
00031     
00032     output_data = read_saved_data(sd, lcd);   
00033     
00034     // Checks if the input and output are equal
00035     if (output_data.score == input_data.score && 
00036     output_data.lives == input_data.lives &&
00037     output_data.smart_bombs == input_data.smart_bombs &&
00038     output_data.alien_number == input_data.alien_number ) {
00039         printf ( "Passed!\n");
00040         return true;
00041     } else {
00042         printf ( "Failed!\n");
00043         return false;
00044     }
00045 }
00046 
00047 void SavedGames::run_save_test(SDFileSystem &sd, N5110 &lcd) {
00048     printf ("\nTesting  save_test() \n\n");
00049     int passed_counter = 0;
00050 
00051     // Runs test with all different possible inputs
00052     if (save_test(CENTRE, sd, lcd)) passed_counter++;
00053     if (save_test(N, sd, lcd)) passed_counter++;
00054     if (save_test(NE, sd, lcd)) passed_counter++;
00055     if (save_test(E, sd, lcd)) passed_counter++;
00056     if (save_test(SE, sd, lcd)) passed_counter++;
00057     if (save_test(S, sd, lcd)) passed_counter++;
00058     if (save_test(SW, sd, lcd)) passed_counter++;
00059     if (save_test(W, sd, lcd)) passed_counter++;
00060     if (save_test(NW, sd, lcd)) passed_counter++;
00061        
00062     // Prints results
00063     printf ("\n save_test passed %d tests out of 9\n\n\n",
00064     passed_counter);
00065 }
00066 
00067 void SavedGames::init() {
00068     error_ = false;
00069     display_data_number_ = 1; 
00070 }
00071 
00072 void SavedGames::check_sd_present(SDFileSystem &sd, N5110 &lcd) {
00073     if(!sd.card_present()) {
00074         // Print error screen
00075         lcd.clear();
00076         lcd.printString("SD card not ",9,3);
00077         lcd.printString("  present   ",9,4);
00078         lcd.refresh();
00079         wait(3);
00080     }
00081 }
00082 
00083 void SavedGames::error_open_file(N5110 &lcd) {
00084     error_ = true;
00085 
00086     // Print error screen
00087     lcd.clear();
00088     lcd.printString(" Unable to  ",9,3);
00089     lcd.printString(" open file  ",9,4);
00090     lcd.refresh();
00091     wait(3); 
00092 }
00093 
00094 void SavedGames::no_saved_files(N5110 &lcd) {
00095     error_ = true;
00096     
00097     // Print error screen
00098     lcd.clear();
00099     lcd.printString("No saved Files",0,3);
00100     lcd.refresh();
00101     wait(3); 
00102 }
00103 
00104 void SavedGames::add_saved_data(SDFileSystem &sd,SavedGamesData data,
00105  N5110 &lcd) {
00106     check_sd_present(sd,lcd);
00107     FILE *fp;
00108     
00109     // Overwrites selected save file
00110     if (display_data_number_ == 1) {    
00111         fp = fopen("/sd/SavedGamesOne.csv", "w");
00112        // printf ("save1 \n");
00113     }else if (display_data_number_ == 2) {
00114         fp = fopen("/sd/SavedGamesTwo.csv", "w");
00115        // printf ("save2\n" );
00116     }else{
00117         fp = fopen("/sd/SavedGamesThree.csv", "w");
00118        // printf ("save2 \n");
00119     }
00120      
00121     if (fp == NULL) {
00122         error_open_file(lcd);
00123             
00124     }else{
00125         // printf ("add data.score = %d \n", data.score);
00126         // printf ("add data.lives = %d \n", data.lives);
00127         // printf ("adddata.smart_bombs = %d \n", data.smart_bombs);
00128         // printf ("add data.alien_number = %d \n", data.lives);      
00129         
00130         // Adds data to file if no error
00131         fprintf(fp, "%d,%d,%d,%d\n", data.score, data.lives, data.smart_bombs,
00132         data.alien_number); 
00133         fclose(fp);
00134     }  
00135 }
00136 
00137 SavedGamesData SavedGames::read_saved_data(SDFileSystem &sd, N5110 &lcd) {
00138     check_sd_present(sd,lcd);
00139     
00140     FILE *fp;
00141     SavedGamesData data;
00142     
00143     // Opens displayed file  
00144     if (display_data_number_ == 1) {    
00145         fp = fopen("/sd/SavedGamesOne.csv", "r");
00146         //printf ("open save1\n");
00147     }else if (display_data_number_ == 2) {
00148         fp = fopen("/sd/SavedGamesTwo.csv", "r");
00149         //printf ("open save2\n");
00150     }else{
00151         fp = fopen("/sd/SavedGamesThree.csv", "r");
00152        // printf ("open save2\n");
00153     }
00154     
00155     // Check if any saved game files
00156     if (fp == NULL) {
00157         no_saved_files(lcd); 
00158         
00159     // Reads saved data into object
00160     }else{
00161         
00162         // Read save file and add values to data object
00163         fscanf(fp, "%d,%d,%d,%d",&data.score, &data.lives,&data.smart_bombs,
00164         &data.alien_number);
00165           
00166         // printf ("saved_data_vector_ 1%d \n", saved_data_vector.size());
00167         fclose(fp);           
00168     } 
00169      
00170     return data;
00171 }
00172 
00173 void SavedGames::display_saved_games(N5110 &lcd) {
00174     lcd.clear();
00175     
00176     // Prints saved game screen
00177     lcd.printString("Saved Games",9,0);
00178     lcd.drawSprite(39, 18, 3, 5, (int *)arrow_up);
00179     lcd.drawSprite(39, 34, 3, 5, (int *)arrow_down);
00180     
00181     // Prints saved game that is displayed
00182     char buffer[9]; 
00183     sprintf(buffer,"Save %2d",display_data_number_);
00184     lcd.printString(buffer,21,3);
00185     lcd.printString("Back(B)Play(A)",0,5);
00186     
00187     lcd.refresh();
00188 }
00189 
00190 void SavedGames::save_game_screen(N5110 &lcd) {
00191     lcd.clear();
00192     
00193     // Prints saved game screen
00194     lcd.printString("Select a save",3,0);
00195     lcd.drawSprite(39, 18, 3, 5, (int *)arrow_up);
00196     lcd.drawSprite(39, 34, 3, 5, (int *)arrow_down);
00197     
00198     // Prints saved game that is displayed
00199     char buffer[9]; 
00200     sprintf(buffer,"Save %2d",display_data_number_);
00201     lcd.printString(buffer,21,3);
00202     lcd.printString("Save(A)",21,5);
00203 
00204     lcd.refresh();
00205 }
00206 
00207 void SavedGames::saved_games_scroll(Direction d_) {
00208     
00209     // Changes displayed menu part depending on joystick input
00210     if (d_ == N || d_ == NE || d_ == NW ) {   
00211         display_data_number_++;
00212         
00213         // Loops back round when at end of saved game vector
00214         if(display_data_number_ > 3) {
00215           display_data_number_ = 1; 
00216         }        
00217     } else if (d_ == S || d_ == SW || d_ == SE) {
00218         display_data_number_--;
00219          if(display_data_number_ < 1 ) {
00220           display_data_number_ = 3; 
00221         }
00222     }
00223     wait(0.15);
00224 }  
00225 
00226 
00227 int SavedGames::get_display_data_number() {
00228     return display_data_number_;
00229 }