Achievement.cpp

00001 /// @file Achievement.cpp
00002 
00003 #include "Achievement.h "
00004 
00005 int Achievement::letters[3] = {0, 0, 0};
00006 int Achievement::currentState = LETTER1;
00007 
00008 void Achievement::init()
00009 {
00010     input->addBtnPressInterrupt(Input::ButtonA, &btnAPress);
00011     input->addBtnPressInterrupt(Input::ButtonB, &btnBPress);
00012     input->addBtnPressInterrupt(Input::ButtonC, &btnCPress);
00013     input->addBtnPressInterrupt(Input::ButtonD, &btnDPress);
00014     
00015     Achievement::currentState = LETTER1;
00016 }
00017 
00018 void Achievement::changeLetter(int index, bool next)
00019 {
00020     int letter = (Achievement::letters[index] + ((next) ? 1 : - 1) + 26) % 26; // + 26 in case it is negative, % => wrap around from Z->A
00021     Achievement::letters[index] = letter;
00022 }
00023 
00024 void Achievement::btnAPress()
00025 {
00026     switch (currentState)
00027     {
00028         case LETTER1:
00029             changeLetter(0, true);
00030         break;
00031         
00032         case LETTER2:
00033             changeLetter(1, true);
00034         break;
00035         
00036         case LETTER3:
00037             changeLetter(2, true);
00038         break;
00039         
00040         case SEL_SUBMIT:
00041             currentState = WRITE_TO_FILE;
00042         break;
00043     }   
00044 }
00045 
00046 void Achievement::btnBPress()
00047 {
00048     // Change to previous letter
00049     switch (currentState)
00050     {
00051         case LETTER1:
00052             changeLetter(0, false);
00053         break;
00054         
00055         case LETTER2:
00056             changeLetter(1, false);
00057         break;
00058         
00059         case LETTER3:
00060             changeLetter(2, false);
00061         break;
00062     }
00063 }
00064 
00065 void Achievement::btnCPress()
00066 {
00067     switch (currentState)
00068     {
00069         case LETTER1:
00070             currentState = LETTER2;
00071         break;
00072         
00073         case LETTER2:
00074             currentState = LETTER3;
00075         break;
00076         
00077         case LETTER3:
00078             currentState = SEL_SUBMIT;
00079         break;
00080         
00081         case SEL_SUBMIT:
00082             currentState = LETTER1;
00083         break;
00084     }
00085 }
00086 
00087 void Achievement::btnDPress()
00088 {
00089     Achievement::currentState = LETTER1;
00090     changeLetter(0, false);
00091 }
00092 
00093 
00094 void Achievement::update(float dt)
00095 {
00096     if (currentState == WRITE_TO_FILE)
00097     {
00098         char s0 = 'A' + static_cast<char>(letters[0]);
00099         char s1 = 'A' + static_cast<char>(letters[1]);
00100         char s2 = 'A' + static_cast<char>(letters[2]);
00101         
00102         std::stringstream ss;
00103         ss << s0 << s1 << s2;
00104         
00105         std::string initials = ss.str();
00106         
00107         // update high score list   
00108         FILE *fp = fopen("/local/highscores.txt", "w");
00109 
00110         if (Global::score > Global::highscores[0].score)
00111         {
00112             Global::highscores[2] = Global::highscores[1];
00113             Global::highscores[1] = Global::highscores[0];
00114             Global::highscores[0].initials = initials;
00115             Global::highscores[0].score = Global::score;
00116         }   
00117         else if (Global::score > Global::highscores[1].score)
00118         {
00119             Global::highscores[2] = Global::highscores[1];
00120             Global::highscores[1].initials = initials;
00121             Global::highscores[1].score = Global::score;
00122         }
00123         else if (Global::score > Global::highscores[2].score)
00124         {
00125             Global::highscores[2].initials = initials;
00126             Global::highscores[2].score = Global::score;
00127         }
00128            
00129         for (int i = 0; i < 3; ++i)
00130             fprintf(fp, "%s %d ", Global::highscores[i].initials, Global::highscores[i].score);
00131                     
00132         fclose(fp);
00133         
00134         currentState = LOAD_GAME_OVER;
00135     }
00136     
00137     if (currentState == LOAD_GAME_OVER)
00138         requestStateChange(GAME_OVER);
00139 }
00140 
00141 void Achievement::render()
00142 {
00143     if (currentState == WRITE_TO_FILE)
00144     {
00145         lcd->printString("Writing...", 12, 2);
00146     }
00147     else // Entering initials
00148     {           
00149         lcd->printString("New high score!", 0, 0);
00150         
00151         const char charLetters[6] = {'A' + letters[0], '\0', 'A' + letters[1], '\0', 'A' + letters[2], '\0'};
00152             
00153         lcd->printString(&charLetters[0], 25, 2);
00154         lcd->printString(&charLetters[2], 40, 2);
00155         lcd->printString(&charLetters[4], 55, 2);
00156         lcd->printString("Submit", 25, 4);
00157         
00158         switch(currentState)
00159         {
00160             case LETTER1:
00161                 lcd->printString("^", 25, 3);
00162             break;
00163             
00164             case LETTER2:
00165                 lcd->printString("^", 40, 3);
00166             break;
00167             
00168             case LETTER3:
00169                 lcd->printString("^", 55, 3);
00170             break;
00171             
00172             case SEL_SUBMIT:
00173                 lcd->printString(">",25-6 , 4);
00174             break;
00175         }
00176     }   
00177 }