Diff: Options_Engine/OptionsEngine.cpp

Revision:

22:4e305ff8a050

Child:

23:61fa82f76808

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Options_Engine/OptionsEngine.cpp	Thu Apr 18 11:50:53 2019 +0000
@@ -0,0 +1,75 @@
+#include "OptionsEngine.h"
+
+OptionsEngine::OptionsEngine(){
+}
+
+OptionsEngine::~OptionsEngine(){
+}
+
+void OptionsEngine::init(){
+    _state = BRIGHTNESS;
+    _brightness = 0.5;
+    
+}
+
+void OptionsEngine::options_menu(Gamepad &gamepad, N5110 &lcd){
+    Option choice = BRIGHTNESS;
+    while(!(gamepad.check_event(gamepad.A_PRESSED))){
+        lcd.clear();
+        display_options(lcd);
+        choice = option_selection(gamepad, lcd);
+        lcd.refresh();
+        wait(0.2);
+    }
+    if(choice == BRIGHTNESS){ change_brightness(gamepad, lcd); }
+    if(choice == BALL_SPEED){ /*change_ball_speed(gamepad, lcd);*/ }
+    if(choice == HIGH_SCORES){ /*view_high_scores(gamepad, lcd);*/ }
+}
+
+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, 16, 63, 8, FILL_TRANSPARENT);
+        read_brightness_input(gamepad);
+        for(int i = 0; i < _brightness*10; i ++){
+            lcd.drawRect(12+6*i, 18, 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; }
+}
+          
\ No newline at end of file