Diff: GameEngine/RocketRacer.cpp

Revision:

21:5c98996d1487

Parent:

20:1907ef5d29bb

Child:

23:2ca9735b16ef

diff -r 1907ef5d29bb -r 5c98996d1487 GameEngine/RocketRacer.cpp
--- a/GameEngine/RocketRacer.cpp	Sun Apr 14 10:56:24 2019 +0000
+++ b/GameEngine/RocketRacer.cpp	Mon Apr 15 13:37:03 2019 +0000
@@ -1,6 +1,6 @@
 #include "RocketRacer.h"
 
-
+//enemy sprite
 const int enemy[11][9] =   {
     { 0,0,0,0,1,0,0,0,0 },
     { 0,0,0,1,1,1,0,0,0 },
@@ -15,6 +15,7 @@
     { 1,1,1,1,1,1,1,1,1 },
 };
 
+//player sprite
 const int rocket[11][9] =   {
     { 0,0,0,0,1,0,0,0,0 },
     { 0,0,0,1,1,1,0,0,0 },
@@ -29,55 +30,58 @@
     { 0,0,1,1,1,1,1,0,0 },
 };
 
-
+/*
+default constructor of the class and initializing th eprivate variables
+*/
 RocketRacer::RocketRacer()
 :first_enemy_position(0),second_enemy_position(0),enemy_phase(0),
 game_speed (0),score(0),Init_position(2),enemy_dead(true),control(true)
 {}
 
+
+
 void RocketRacer::Main_Game_Display(N5110 &lcd){
-    
-    lcd.clear();
-    lcd.drawRect(0,0,50,47,FILL_TRANSPARENT);
-    char score_buffer[14];
+     
+    lcd.clear(); //clears the lcd 
+    lcd.drawRect(0,0,50,47,FILL_TRANSPARENT);//draws a transparent rectangle on the lcd
+    char score_buffer[14];//buffer to store the score 
     char score_buffer1[14];
-    char level_buffer[14];
+    char level_buffer[14];//buffer to store the current level 
     char level_buffer1[14];
-    
-    
-    //dispaly score
+      
+    //display score
     sprintf(score_buffer,"score");
     lcd.printString(score_buffer,55,0);
     sprintf(score_buffer1,"%d",score);
     lcd.printString(score_buffer1,58,1);
-    //dispaly level
+    //display level
     sprintf(level_buffer,"Level");
     lcd.printString(level_buffer,55,3);
     sprintf(level_buffer1,"%d",game_speed);
     lcd.printString(level_buffer1,58,4);
-    lcd.refresh();
+    lcd.refresh();//refreshes the lcd to render
     
     }
 
 
 void RocketRacer::Joystick_position(Gamepad &pad){
     
-    Direction d=pad.get_direction();
+    Direction d=pad.get_direction();//assigning the object d to the method to get the joystick direction
 
     if( (d==E||pad.check_event(Gamepad::R_PRESSED) == true )
-     && Init_position!=3 && control==true){
-        Init_position++; 
-        control = false;
+     && Init_position!=3 && control==true){//statement to check if the joystick moved right
+        Init_position++;//increments the position of the player sprite 
+        control = false; //sets the flag to false
 //        printf("its Right\n");
     }
     else if( (d==W ||pad.check_event(Gamepad::L_PRESSED) == true )
-    && Init_position!=1 && control==true){
-        Init_position--;
-        control = false;  
+    && Init_position!=1 && control==true){//statement to check if the joystick moved left
+        Init_position--;//decrements the position of the player sprite
+        control = false;//sets the flag to false
 //        printf("its left\n");
     }
-    else if(d==CENTRE){
-        control = true;
+    else if(d==CENTRE){//statement to check if the joystick position is center
+        control = true;//sets the flag to true
 //        printf("its center\n");
         }
 }
@@ -85,11 +89,11 @@
 
 void RocketRacer::Generate_New_Enemy(){
   
-  srand(time(NULL));
+  srand(time(NULL));//seeding the random function
   
-  if (enemy_dead){ 
-    first_enemy_position = Init_position; 
-    second_enemy_position = (rand() % 3)+1; 
+  if (enemy_dead){//statement to check if the enemy crossed the player sprite 
+    first_enemy_position = Init_position;//places the first enemy above the player's sprite  
+    second_enemy_position = (rand() % 3)+1;//generates a random number from 1 to 3 
     enemy_phase = 0; 
     enemy_dead = false;
     }
@@ -98,73 +102,73 @@
 void RocketRacer::Check_Enemy_Dead(N5110 &lcd,Gamepad &pad){
              
      if (enemy_phase>23 && ((first_enemy_position== Init_position)
-      || (second_enemy_position == Init_position)) ){
-         End_Game(pad,lcd); 
+      || (second_enemy_position == Init_position)) ){//statement to check if the enemies collided with the rocket 
+         End_Game(pad,lcd);//calls the end game method that displays game over screen 
      }
-     if (enemy_phase>39){
+     if (enemy_phase>39){//statement to check if the enemies crossed without colliding with the rocket 
          enemy_dead = true;
-         score++;
+         score++;//increments the score
          } 
     }
     
 void RocketRacer::Game_Loop(N5110 &lcd,Gamepad &pad){
     
-        lcd.clear(); 
+        lcd.clear(); //clears the lcd
     
-        Joystick_position(pad);
-        player_position(lcd,Init_position);
+        Joystick_position(pad);//calls the method to get the joystick direction according to the user
+        player_position(lcd,Init_position);//calls the method to draw the sprites according to joystick postion
             
-        Generate_New_Enemy();
+        Generate_New_Enemy();//generate 2 new enemies
         
         
-         enemy_position(lcd,first_enemy_position, enemy_phase);
+         enemy_position(lcd,first_enemy_position, enemy_phase);//places the first enemy according to the position
          enemy_phase++;
-         enemy_position(lcd,second_enemy_position, enemy_phase);
+         enemy_position(lcd,second_enemy_position, enemy_phase);//places the second enemy according to the position
          enemy_phase++;
          
-         Check_Enemy_Dead(lcd,pad);
+         Check_Enemy_Dead(lcd,pad);//checks if enemies crossed the rocket
          
-         Game_difficulty(pad);
+         Game_difficulty(pad); //adds difficulty to the game 
          
-         lcd.refresh();
+         lcd.refresh();//refreshes the screen
     }
 
 
 //adds difficulty to the game after proceeding with each level
 void RocketRacer::Game_difficulty(Gamepad &pad){
      if (score>=0 && score<=5){
-        pad.led(1,1.0); game_speed = 1; 
-         wait(0.09);
+        pad.led(1,1.0); game_speed = 1;//first led on to indicate level 1 
+         wait(0.09);//reduces the wait on each level
     }if (score>5 && score<=10){
-      pad.led(2,1.0); game_speed = 2;
+      pad.led(2,1.0); game_speed = 2;//first&second leds on to indicate level 2
          wait(0.07);
     }if (score>10 && score<=20){
-        pad.led(3,1.0); game_speed = 3; 
+        pad.led(3,1.0); game_speed = 3;//1,2,3 leds on to indicate level 3 
         wait(0.06); 
-    }if (score>20 && score<=25){
+    }if (score>20 && score<=25){//1,2,3,4 leds on to indicate level 4 
         pad.led(4,1.0); game_speed = 4; 
         wait(0.05); 
-    }if (score>25 && score<=30){
+    }if (score>25 && score<=30){//1,2,3,4,5 leds on to indicate level 5 
         pad.led(5,1.0); game_speed = 5; 
         wait(0.04); 
-    }if (score>30){
+    }if (score>30){//all 6 leds on to indicate level 6 
        pad.led(6,1.0); game_speed = 6;
         wait(0.03);
     }
-    }
+}
 
 
 void RocketRacer::enemy_position(N5110 &lcd,int place, int phase){
   
-  if (place==1){
+  if (place==1){//draws the enemy sprite at position 1
       lcd.drawSprite(2,phase,11,9,(int *)enemy);
       }
   
-  if (place==2){
+  if (place==2){//draws the enemy sprite at position 2
       lcd.drawSprite(18,phase,11,9,(int *)enemy);
       }
   
-  if (place==3){
+  if (place==3){//draws the enemy sprite at position 3
       lcd.drawSprite(34,phase,11,9,(int *)enemy);
       }
       lcd.refresh();
@@ -173,15 +177,15 @@
 
 void RocketRacer::player_position(N5110 &lcd,char RocketPosition){
   
-  Main_Game_Display(lcd);
+  Main_Game_Display(lcd);//displays the game screen
   
-  if (RocketPosition==1){   
+  if (RocketPosition==1){//places the rocket at positon 1   
       lcd.drawSprite(2,34,11,9,(int *)rocket);
       }
-  if (RocketPosition==2){
+  if (RocketPosition==2){//places the rocket at positon 2
       lcd.drawSprite(18,34,11,9,(int *)rocket);
       }
-  if (RocketPosition==3){
+  if (RocketPosition==3){//places the rocket at positon 3
       lcd.drawSprite(34,34,11,9,(int *)rocket);
       }
       lcd.refresh();
@@ -192,7 +196,7 @@
     
     lcd.clear();
     char buffer1[14];
-    
+    //prints the gameover to the lcd with the score achieved
     lcd.printString("Game over!!!",5,0);
     lcd.printString("Better Luck ",2,1);
     lcd.printString("next time",2,2);
@@ -200,8 +204,8 @@
     sprintf(buffer1,"%d",score);
     lcd.printString(buffer1,20,4); 
     
-    pad.leds_on();
-    pad.tone(4500,1);
+    pad.leds_on();//turns all leds on
+    pad.tone(4500,1);//makes a tone to indicate gmeover
          
     lcd.refresh();
     wait(500);