File content as of revision 35:138ad0faa42b:

#include "OptionsEngine.h"

#include <fstream>
#include <iostream>
#include <sstream>
#include <functional>

OptionsEngine::OptionsEngine(){
}

OptionsEngine::~OptionsEngine(){
}

void OptionsEngine::init(){
    _state = BRIGHTNESS;
    _brightness = 0.5;
    _ball_speed = 5;   
}

void OptionsEngine::display_options(N5110 &lcd){
    lcd.printString("Options menu", 6, 0);
    lcd.printString("Brightness", 12, 2);
    lcd.printString("Ball speed", 12, 3);
    lcd.printString("High scores", 9, 4);
}

Option OptionsEngine::option_selection(Gamepad &gamepad, N5110 &lcd){
    OptionSelection fsm[3] = {
        {2,{HIGH_SCORES, BALL_SPEED, BRIGHTNESS}},
        {3,{BRIGHTNESS, HIGH_SCORES, BALL_SPEED}},
        {4,{BALL_SPEED, BRIGHTNESS, HIGH_SCORES}}
    };
    if(gamepad.get_direction() == N){ _next_state = 0; }
    else if(gamepad.get_direction() == S){ _next_state = 1; }
    else{ _next_state = 2; }
    _state = fsm[_state].next_state[_next_state];
    lcd.printChar('>', 0, fsm[_state].output);
    lcd.printChar('<', 78, fsm[_state].output);
    return _state;
}

void OptionsEngine::change_brightness(Gamepad &gamepad, N5110 &lcd){
    while(!(gamepad.check_event(gamepad.A_PRESSED))){
        lcd.clear();
        lcd.printString("Brightness", 12, 0);
        lcd.printString("Use L and R to", 0, 3);
        lcd.printString("change", 24, 4);
        lcd.printString("A = confirm", 9, 5);
        lcd.drawRect(10, 12, 63, 8, FILL_TRANSPARENT);
        read_brightness_input(gamepad);
        for(int i = 0; i < _brightness*10; i ++){
            lcd.drawRect(12+6*i, 14, 5, 4, FILL_BLACK);
        }
        lcd.setBrightness(_brightness);
        lcd.refresh();
        wait(0.2);
    }
}

void OptionsEngine::read_brightness_input(Gamepad &gamepad){
    if(gamepad.check_event(gamepad.L_PRESSED)){ _brightness -= 0.1f; }      //Use of f to explicitly convert to a float (to fit declaration type in header file).
    if(gamepad.check_event(gamepad.R_PRESSED)){ _brightness += 0.1f; }      //Otherwise 0.1 is implicitly converted to a double (giving warning messages).
    if(_brightness < 0){ _brightness = 0; }
    if(_brightness > 1){ _brightness = 1; }
    /*printf("Brightness = %f\n", _brightness);*/
}

void OptionsEngine::change_ball_speed(Gamepad &gamepad, N5110 &lcd, Ball &ball){
    while(!(gamepad.check_event(gamepad.A_PRESSED))){
        lcd.clear();
        lcd.printString("Ball Speed", 12, 0);
        lcd.printString("Use L and R to", 0, 3);
        lcd.printString("change", 24, 4);
        lcd.printString("A = confirm", 9, 5);
        lcd.drawRect(10, 12, 63, 8, FILL_TRANSPARENT);
        read_ball_speed_input(gamepad);
        for(int i = 0; i < _ball_speed; i ++){
            lcd.drawRect(12+6*i, 14, 5, 4, FILL_BLACK);
        }
        ball.set_ball_speed(_ball_speed);
        lcd.refresh();
        wait(0.2);
    }
}

void OptionsEngine::read_ball_speed_input(Gamepad &gamepad){
    if(gamepad.check_event(gamepad.L_PRESSED)){ _ball_speed -= 1; }
    if(gamepad.check_event(gamepad.R_PRESSED)){ _ball_speed += 1; }
    if(_ball_speed < 0){ _ball_speed = 0; }
    if(_ball_speed > 10){ _ball_speed = 10; }
}

void OptionsEngine::view_high_scores(Gamepad &gamepad, N5110 &lcd){
    _leaderboard = CLASSIC_MODE; 
    while(!(gamepad.check_event(gamepad.A_PRESSED))){
        if(gamepad.check_event(gamepad.R_PRESSED)){ _leaderboard = BRICKBREAKER_MODE; }
        if(gamepad.check_event(gamepad.L_PRESSED)){ _leaderboard = CLASSIC_MODE; }
        lcd.clear();
        print_high_scores(lcd);
        lcd.refresh();
        wait(0.2);
    }
}

void OptionsEngine::read_classic_high_scores(){
    FILE *fp;
    fp = fopen("/sd/classichighscores.txt", "r");
    
    if(fp == NULL){
        printf("Error: Could not open file");
    } else {
        int i = 0;
        rewind(fp);
        
        while(fscanf(fp, "%d,%f", &_classic_index[i], &_classic_values[i]) != EOF){
            i++;
        }
        fclose(fp);
    }
}

void OptionsEngine::read_bb_high_scores(){
    FILE *fp;
    fp = fopen("/sd/bbhighscores.txt", "r");
    
    if(fp == NULL){
        printf("Error: Could not open file");
    } else {
        int i = 0;
        rewind(fp);
        
        while(fscanf(fp, "%d,%f", &_bb_index[i], &_bb_values[i]) != EOF){
            i++;
        }
        fclose(fp);
    }
}

void OptionsEngine::print_high_scores(N5110 &lcd){
    if(_leaderboard == CLASSIC_MODE){
        read_classic_high_scores();
        lcd.printString("Classic", 21, 0);
        lcd.printString("R>", 72, 3);
        char buffer[14];
        for(int i = 0; i < 5; i++){
            sprintf(buffer, "%d. %.2f", _classic_index[i], _classic_values[i]);
            lcd.printString(buffer, 0, i + 1);
        }   
    }
    if(_leaderboard == BRICKBREAKER_MODE){
        read_bb_high_scores();
        lcd.printString("Brickbreak", 12, 0);
        lcd.printString("<L", 72, 3);
        char buffer[14];
        for(int i = 0; i < 5; i++){
            sprintf(buffer, "%d. %.0f", _bb_index[i], _bb_values[i]);
            lcd.printString(buffer, 0, i + 1);
        }
    }
}