Diff: GameEngine.cpp

Revision:

16:9500059ad5d8

Parent:

15:6857657bb4e2

--- a/GameEngine.cpp	Sat May 30 03:06:22 2020 +0000
+++ b/GameEngine.cpp	Sat May 30 05:43:50 2020 +0000
@@ -1,11 +1,11 @@
 #include "GameEngine.h"
 
-GameEngine::GameEngine()
+GameEngine::GameEngine()        //constructor
 {
 
 }
 
-GameEngine::~GameEngine()
+GameEngine::~GameEngine()      //deconstructor
 {
 }
 
@@ -13,55 +13,55 @@
 void GameEngine::print_scores(N5110 &lcd, Snake &snake)
 {
 
-    int score = snake.get_score();
+    int score = snake.get_score();                                  //gets score from snake class object
 
     char buffer1[14];
-    sprintf(buffer1,"%2d",score);
-    lcd.printString(buffer1,0,48);   
+    sprintf(buffer1,"%2d",score);                                  //sprintf is used to print as the program is displaying a variable
+    lcd.printString(buffer1,0,48);
 }
 
 
 
 
-void GameEngine::get_LEDs(Gamepad &pad, Snake &snake)
+void GameEngine::get_LEDs(Gamepad &pad, Snake &snake)       //controls LEDs based on snake position
 {
-    pad.leds_off();
-    Vector2D Snakehead = snake.get_Snakehead();
+    pad.leds_off();                                         //initialise leds
+    Vector2D Snakehead = snake.get_Snakehead();             //call values stored in _x0 and _y0 to identify the snakehead
     int _x0 = Snakehead.x;
-    int _y0 = Snakehead.y;                    //depending where the snakehead is on the screen, different LEDs will turn on indicating its postion
+    int _y0 = Snakehead.y;
+    //depending where the snakehead is on the screen, different LEDs will turn on indicating its postion
+    // top right led on
+    if (_x0 >= 42 && _y0 <= 16) {               //defines paramaters of the top right quadrant of the lcd rectangle and turns on and off the top right LED if the x and y values are in the top right quadrant
 
-    if (_x0 >= 42 && _y0 <= 16) {               //defines paramaters of the top right quadrant of the lcd rectangle and turns on and off the top right LED if the
-        // top right led on
-
-        pad.led(4, 1);
-        wait(0.2);
-        pad.led(4, 0);
+        pad.led(4, 1);                        //turn on top right led4
+        wait(0.2);                            //wait 0.2 seconds
+        pad.led(4, 0);                        //turn it off
     }
     // topleft led on
-    if (_x0 <= 42 && _y0 <= 16 ) {
+    if (_x0 <= 42 && _y0 <= 16 ) {             //parameter for top left
 
-        pad.led(1, 1);
+        pad.led(1, 1);                          //turns on top left led
         wait(0.2);
         pad.led(1, 0);
     }
-    //bottom left                           //defines paramaters of the bottom left quadrant of the rectangle ont the lcd display and turns on and off the bottom left LED
+    //bottom left                           //defines paramaters of the bottom left quadrant of the rectangle on the lcd display and turns on and off the bottom left LED
     if (_x0 <=42 && _y0 >= 16 ) {
 
-        pad.led(3,1);
+        pad.led(3,1);                       //turns on bottom left led
         wait(0.2);
         pad.led(3, 0);
     }
     //bottom right
-    if (_x0 >= 42 && _y0 >= 16) {
+    if (_x0 >= 42 && _y0 >= 16) {          //there are some overlap on the symetrical x and y axis where conditions are true in both loops causing leds to coome on at the same time and alternately blink
         // top right led on
         pad.led(6, 1);
         wait(0.2);
-        pad.led(6, 0);
+        pad.led(6, 0);                      //turns of bottom right led
     } else {
     }
 }
 
-void GameEngine::print_countdown(N5110 &lcd, Snake &snake)
+void GameEngine::print_countdown(N5110 &lcd, Snake &snake)          //prints counter
 {
 
     int countdown = snake.get_countdown();                         //Accessing the value of the member variale _countdown