Menu.cpp

00001 #include "Menu.h"
00002 
00003 // Define sprite arrays.
00004 int menu_sprite[23][80] =   { 
00005   { 0,0,0,0,0,0,0,0,1,0,1,0,0,0,0,0,0,0,0,1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,
00006   0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
00007   0,0,1 },
00008   { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
00009   0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,
00010   1,1,1 },
00011   { 0,0,0,0,0,0,0,1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,
00012   0,0,0,0,0,0,0,0,0,0,0,1,0,1,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,
00013   1,1,0 },
00014   { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
00015   0,0,0,0,0,0,0,0,1,1,0,0,1,0,0,0,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,0,
00016   0,0,0 },
00017   { 0,0,0,0,0,0,1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,
00018   0,0,0,0,0,1,0,1,0,0,1,0,0,0,1,0,0,0,0,1,1,0,0,0,0,0,0,0,0,1,1,1,1,1,1,0,0,0,0,
00019   0,0,0 },
00020   { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
00021   0,0,1,1,0,0,1,0,1,0,0,1,0,0,0,0,0,0,0,0,0,1,0,0,0,0,1,1,1,1,1,1,1,0,0,0,0,0,0,
00022   0,0,0 },
00023   { 0,0,0,0,0,1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,1,1,
00024   0,1,0,0,1,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,1,0,0,1,0,1,1,1,1,1,0,0,0,0,0,0,0,0,0,
00025   0,0,0 },
00026   { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,
00027   1,1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,
00028   0,0,0 },
00029   { 0,0,0,0,1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,
00030   0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
00031   0,0,0 },
00032   { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,1,0,0,1,0,0,0,0,0,1,0,0,0,0,0,1,
00033   1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
00034   0,0,0 },
00035   { 0,0,0,1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,
00036   0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
00037   0,0,0 },
00038   { 0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,
00039   0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
00040   0,0,0 },
00041   { 0,0,1,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,1,0,1,0,0,0,0,0,0,0,0,0,
00042   0,0,0,0,0,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
00043   0,0,0 },
00044   { 0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,
00045   0,0,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
00046   0,0,0 },
00047   { 0,1,0,0,0,1,0,0,0,0,0,1,0,1,0,1,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,
00048   1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
00049   0,0,0 },
00050   { 0,1,1,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,1,1,1,1,
00051   1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
00052   0,0,0 },
00053   { 0,1,0,0,1,0,0,0,0,1,0,0,0,1,0,0,0,0,0,0,1,0,0,1,0,0,0,0,0,0,0,1,1,1,1,1,1,1,
00054   1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
00055   0,0,0 },
00056   { 0,0,1,0,0,0,1,0,0,0,1,0,0,1,1,1,0,0,1,0,0,0,1,0,1,0,0,0,1,1,1,1,1,1,1,1,1,1,
00057   1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
00058   0,0,0 },
00059   { 0,0,1,0,0,0,0,0,1,0,0,1,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,1,1,0,
00060   0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
00061   0,0,0 },
00062   { 0,0,0,0,1,0,0,0,0,0,1,0,1,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,1,0,1,
00063   1,1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
00064   0,0,0 },
00065   { 0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,1,0,1,
00066   1,1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
00067   0,0,0 },
00068   { 0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,1,0,
00069   0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
00070   0,0,0 },
00071   { 0,0,0,0,0,0,0,0,0,0,0,0,1,0,1,0,1,0,1,0,1,0,1,0,1,1,0,0,0,0,0,0,0,0,0,0,0,1,
00072   1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
00073   0,0,0 }
00074 };
00075 
00076 // Define the finite state machine for three different states: running game, 
00077 // display
00078 // menu and display controls, {output,{a,b,c,d}} where a,b,c,d are inputs.
00079 // The outputs have been assigned to 0,1,2.  
00080 // There are four different relevant input combinations that have been assigned 
00081 // to: 0,1,2,3.
00082 State _fsm[3] = { 
00083   {0,{0,1,0,0}},
00084   {1,{1,1,0,2}},
00085   {2,{2,1,2,0}}
00086 };   
00087 
00088 // Constructor and destructor.
00089 Menu::Menu() {}
00090 
00091 Menu::~Menu() {}
00092 
00093 void Menu::init() { 
00094   // Starting setup of menu.
00095   _state = 1;  // Starting state is the menu.  
00096   _controller.init();
00097   // Initialise counters for musical tune.
00098   _tone_flag = false;
00099   _tone_counter = 0;
00100   _chord_counter = 0;
00101 }
00102 
00103 void Menu::run(N5110 &lcd, Gamepad &gamepad) {
00104   set_input(gamepad.check_event(Gamepad::START_PRESSED), 
00105     gamepad.check_event(Gamepad::BACK_PRESSED),
00106     gamepad.check_event(Gamepad::X_PRESSED));
00107   // Select the current output, execute that output via the output function and 
00108   // update to the next state depending on the input.
00109   _output = _fsm[_state].output;
00110   output(lcd, gamepad);
00111   _state = _fsm[_state].next_state[_menu_input];    
00112 }
00113 
00114 void Menu::output(N5110 &lcd, Gamepad &gamepad) {
00115   // 0, 1 and 2 have been assigned to the output of each state respectively.
00116   if (_output == 0) {
00117     run_game(lcd, gamepad);  // Runs the main game loop.
00118   } else if (_output == 1) {
00119     display_menu(lcd, gamepad);  // Displays the main menu.
00120   } else {
00121     display_controls(lcd, gamepad);  // Displayes the control page.
00122   }
00123 }
00124 
00125 void Menu::set_input(bool start, bool back, bool x) {
00126   // 0, 1, 2, 3 have been assigned to each relevant input combination.
00127   if (!start && !back && !x) {  // Nothing is pressed.
00128     _menu_input = 0;  
00129   } else if (!start && back) {  // Only back is pressed.
00130     _menu_input = 1;  
00131   } else if (start && !back) {  // Only start is pressed.
00132     _menu_input = 2;  
00133   } else if (x) {  // Only X is pressed.
00134     _menu_input = 3; 
00135   }
00136 } 
00137 
00138 void Menu::run_game(N5110 &lcd, Gamepad &gamepad) {
00139   _controller.run_game_engine(lcd, gamepad);
00140 }
00141 
00142 void Menu::display_controls(N5110 &lcd, Gamepad &gamepad) {
00143   // Print lines for aesthetics, and print controls text.
00144   lcd.drawLine(0,0,84,0,FILL_BLACK);
00145   lcd.drawLine(0,6,84,6,FILL_BLACK);
00146   lcd.drawLine(0,24,84,24,FILL_BLACK);
00147   lcd.drawLine(0,30,84,30,FILL_BLACK);
00148   lcd.printString("JOYSTICK:",0,0);
00149   lcd.printString("-Go Left/Right",0,1);
00150   lcd.printString("-Down to Duck",0,2);
00151   lcd.printString("Collect Coins!",0,5);
00152   lcd.printString("A:",0,3);
00153   lcd.printString("-Jump",0,4);
00154   play_tone(gamepad);  // Play the tune.
00155 }
00156 
00157 void Menu::display_menu(N5110 &lcd, Gamepad &gamepad) {
00158   // Print lines and sprite for aesthetics, and print menu text.
00159   lcd.drawLine(0,0,84,0,FILL_BLACK);
00160   lcd.drawLine(0,6,84,6,FILL_BLACK);
00161   lcd.drawLine(0,24,84,24,FILL_BLACK);
00162   lcd.printString("SKATER",24,0);
00163   lcd.printString("START- Play!",0,1);   
00164   lcd.printString("X- Controls",0,2); 
00165   lcd.drawSprite(1,25,23,80,(int*)menu_sprite); 
00166   play_tone(gamepad);  // Play the tune.
00167 }
00168 
00169 void Menu::play_tone(Gamepad &gamepad) {
00170   // Plays a musical tune in 3/4 based on two chords, A and F in Aminor.
00171   // It switches between each chord every 12 game loops via chord counter.  
00172   _tone_flag = !_tone_flag;
00173   _tone_counter++;
00174   _chord_counter++;
00175   if (_chord_counter < 12) {
00176     play_chord_a(gamepad);
00177   } else {
00178     if (_chord_counter == 24) _chord_counter = 0;
00179     play_chord_b(gamepad);
00180   }  
00181   wait(0.14);  // Determines how fast the musical tune is played.
00182 }
00183 
00184 void Menu::play_chord_a(Gamepad &gamepad) {
00185   // For each chord, the first set of two notes is played for 5 game loops and 
00186   // the second set for 2 game loops via tone counter.
00187   // Each note is alternated every game loop via tone flag.  
00188   if (_tone_counter < 5) {
00189     if (_tone_flag) {
00190       gamepad.tone(220, 0.5);
00191     } else {
00192       gamepad.tone(440, 0.1);
00193     }
00194   } else {
00195     if (_tone_counter == 6) _tone_counter = 0;
00196     if (_tone_flag) {
00197       gamepad.tone(174.61, 0.1);
00198     } else {
00199       gamepad.tone(246.94, 0.1);
00200     }
00201   }
00202 } 
00203 
00204 void Menu::play_chord_b(Gamepad &gamepad) {
00205   // Same as play_chord_a, just different notes. 
00206   if (_tone_counter < 5) {
00207     if (_tone_flag) {
00208       gamepad.tone(174.61, 0.5);  
00209     } else {
00210       gamepad.tone(349.23, 0.1);
00211     }
00212   } else {
00213     if (_tone_counter == 6) _tone_counter = 0;
00214     if (_tone_flag) {
00215       gamepad.tone(659.25, 0.1);
00216     } else {
00217       gamepad.tone(220, 0.1);
00218     }
00219   }
00220 }