SubmitHighscore.cpp

00001 /// @file SubmitHighscore.cpp
00002 
00003 #include "SubmitHighscore.h "
00004 
00005 int SubmitHighscore::letters[3] = {0, 0, 0};
00006 int SubmitHighscore::currentState = LETTER1;
00007 
00008 void SubmitHighscore::init()
00009 {
00010     input->addBtnPressInterrupt(Input::ButtonA, &btnAPress);
00011     input->addBtnPressInterrupt(Input::ButtonB, &btnBPress);
00012     input->addBtnPressInterrupt(Input::ButtonC, &btnCPress);
00013     
00014     SubmitHighscore::currentState = LETTER1;
00015 }
00016 
00017 void SubmitHighscore::changeLetter(int index, bool next)
00018 {
00019     int letter = (SubmitHighscore::letters[index] + ((next) ? 1 : - 1) + 26) % 26; // + 26 in case it is negative, % => wrap around from Z->A
00020     SubmitHighscore::letters[index] = letter;
00021 }
00022 
00023 void SubmitHighscore::btnAPress()
00024 {
00025     switch (currentState)
00026     {
00027         case LETTER1:
00028             changeLetter(0, true);
00029         break;
00030         
00031         case LETTER2:
00032             changeLetter(1, true);
00033         break;
00034         
00035         case LETTER3:
00036             changeLetter(2, true);
00037         break;
00038         
00039         case SEL_SUBMIT:
00040             currentState = WRITE_TO_FILE;
00041         break;
00042     }   
00043 }
00044 
00045 void SubmitHighscore::btnBPress()
00046 {
00047     // Change to previous letter
00048     switch (currentState)
00049     {
00050         case LETTER1:
00051             changeLetter(0, false);
00052         break;
00053         
00054         case LETTER2:
00055             changeLetter(1, false);
00056         break;
00057         
00058         case LETTER3:
00059             changeLetter(2, false);
00060         break;
00061     }
00062 }
00063 
00064 void SubmitHighscore::btnCPress()
00065 {
00066     switch (currentState)
00067     {
00068         case LETTER1:
00069             currentState = LETTER2;
00070         break;
00071         
00072         case LETTER2:
00073             currentState = LETTER3;
00074         break;
00075         
00076         case LETTER3:
00077             currentState = SEL_SUBMIT;
00078         break;
00079         
00080         case SEL_SUBMIT:
00081             currentState = LETTER1;
00082         break;
00083     }
00084 }
00085 
00086 
00087 void SubmitHighscore::update(float dt)
00088 {
00089     if (currentState == WRITE_TO_FILE)
00090     {
00091         char s0 = 'A' + static_cast<char>(letters[0]);
00092         char s1 = 'A' + static_cast<char>(letters[1]);
00093         char s2 = 'A' + static_cast<char>(letters[2]);
00094         
00095         std::stringstream ss;
00096         ss << s0 << s1 << s2;
00097         
00098         std::string initials = ss.str();
00099         
00100         // update high score list   
00101         FILE *fp = fopen("/local/highscores.txt", "w");
00102 
00103         if (Global::score > Global::highscores[0].score)
00104         {
00105             Global::highscores[2] = Global::highscores[1];
00106             Global::highscores[1] = Global::highscores[0];
00107             Global::highscores[0].initials = initials;
00108             Global::highscores[0].score = Global::score;
00109         }   
00110         else if (Global::score > Global::highscores[1].score)
00111         {
00112             Global::highscores[2] = Global::highscores[1];
00113             Global::highscores[1].initials = initials;
00114             Global::highscores[1].score = Global::score;
00115         }
00116         else if (Global::score > Global::highscores[2].score)
00117         {
00118             Global::highscores[2].initials = initials;
00119             Global::highscores[2].score = Global::score;
00120         }
00121            
00122         for (int i = 0; i < 3; ++i)
00123             fprintf(fp, "%s %d ", Global::highscores[i].initials, Global::highscores[i].score);
00124                     
00125         fclose(fp);
00126         
00127         currentState = LOAD_GAME_OVER;
00128     }
00129     
00130     if (currentState == LOAD_GAME_OVER)
00131         requestStateChange(GAME_OVER);
00132 }
00133 
00134 void SubmitHighscore::render()
00135 {
00136     if (currentState == WRITE_TO_FILE)
00137     {
00138         lcd->printString("Writing...", 12, 2);
00139     }
00140     else // Entering initials
00141     {           
00142         lcd->printString("New high score!", 0, 0);
00143         
00144         const char charLetters[6] = {'A' + letters[0], '\0', 'A' + letters[1], '\0', 'A' + letters[2], '\0'};
00145             
00146         lcd->printString(&charLetters[0], 25, 2);
00147         lcd->printString(&charLetters[2], 40, 2);
00148         lcd->printString(&charLetters[4], 55, 2);
00149         lcd->printString("Submit", 25, 4);
00150         
00151         switch(currentState)
00152         {
00153             case LETTER1:
00154                 lcd->printString("^", 25, 3);
00155             break;
00156             
00157             case LETTER2:
00158                 lcd->printString("^", 40, 3);
00159             break;
00160             
00161             case LETTER3:
00162                 lcd->printString("^", 55, 3);
00163             break;
00164             
00165             case SEL_SUBMIT:
00166                 lcd->printString(">",25-6 , 4);
00167             break;
00168         }
00169     }   
00170 }