Diff: main.cpp

Revision:

6:8e2fca142827

Parent:

5:e63e1024294e

Child:

7:9bd49beccdd1

--- a/main.cpp	Thu Jun 04 17:23:49 2020 +0000
+++ b/main.cpp	Thu Jun 04 19:13:21 2020 +0000
@@ -14,6 +14,7 @@
 #include "mbed.h"
 #include "Gamepad.h"
 #include "N5110.h"
+#include "Bitmap.h"
 #include <ctime>
 
 
@@ -24,64 +25,109 @@
 Gamepad pad;
 
 
-
-void welcome();
-
-bool gameOver;
-int borderW, borderH, appleX, appleY, snakeX, snakeY, score;
+bool endGame;
+int borderW, borderH, appleX, appleY, snakeX, snakeY, score; 
 enum eDirection {STOP = 0, LEFT, RIGHT, UP, DOWN};
 eDirection dir;
-char buffer[14];  // each character is 6 pixels wide, screen is 84 pixels (84/6 = 14)
+
          
 
 
-void setup()
+void setup()                          // Sets up the values for the game    
 {
-    srand(time(0)); //Seed the generator, give it a starting value
-    gameOver = false;
+    srand(time(0));                   // Seed the generator, give it a starting value
+    endGame = false;                  // Sets the game as not finished
     dir = STOP;                       // When the game starts the snake isn't moving
-    borderW = WIDTH;                  //Fence width and height
-    borderH = HEIGHT-8;     
+    
+    borderW = WIDTH;                  // Border width and height
+    borderH = HEIGHT-8;               // Uses - 8 so we can get a line of text for the score
+   
     snakeX = borderW/2;               // Snake Starts at Center
     snakeY = borderH/2+8;
-    appleX = rand() % borderW;        // Fruit position 
+   
+    appleX = rand() % borderW;        // Apple position 
     appleY = rand() % borderH;      
-    score = 0;
+    
+    score = 0;                        // Sets the initial Score to 0
+ 
 }
 
-void draw() {
-    lcd.clear();  
-    
-  
-      
- lcd.drawRect(0,8,borderW,borderH,FILL_TRANSPARENT);    // Border
-        int ScoreLength = sprintf(buffer,"Score:%2d",score); // Score
+void display()   // Deals with the fuctions of the display
+ {
+        lcd.clear();   
+        lcd.drawRect(0,8,borderW,borderH,FILL_TRANSPARENT);      // Draws a border showing the game area
+        
+        char buffer[14];                                         // each character is 6 pixels wide, screen is 84 pixels (84/6 = 14)
+        int ScoreLength = sprintf(buffer,"Score:%2d",score);     // Shows the player the score
         if (ScoreLength <= 14) 
-            lcd.printString(buffer,WIDTH/2-25,0);  // centers the score
+            lcd.printString(buffer,WIDTH/2-25,0);                // centers the score
             
-   lcd.drawCircle(snakeX,snakeY,2,FILL_BLACK);  // snakehead   
+            
+   lcd.drawRect(snakeX,snakeY,5,5,FILL_BLACK);                   // Draws the initial snake head 
    
    
-   lcd.drawRect(appleX, appleY, 3, 3, FILL_BLACK); // Apple
+   lcd.drawCircle(appleX,appleY,2,FILL_BLACK);                   // Draws a circle representing an apple
             
   lcd.refresh();
      
      
      }   
 
+void control()   // Reads the controls
+                    {
+            if (pad.A_pressed()){
+                        dir = RIGHT;
+                        }
+             if (pad.B_pressed()){
+                        dir = DOWN;
+                        }
+             if (pad.X_pressed()){
+                        dir = UP;
+                        }
+             if (pad.Y_pressed()){
+                        dir = LEFT;
+                        }          
+ 
+}
+
+void gameplay() {
+
+   // Change the direction the snake goes dependant on the input 
+    
+    if (dir == UP) {
+                 --snakeY;
+                 }
+    if   (dir == DOWN) {
+                 ++snakeY;
+                 }  
+    if   (dir == LEFT) {
+                --snakeX;
+                 }  
+    if   (dir == RIGHT) {
+                ++snakeX;
+                 }  
+  
+                                                        
+                                
+}
 
 ///////////// functions ////////////////
 int main()
 {
 //initialise Display and gamepad
-lcd.init();
-pad.leds_off();
+    lcd.init();                       // Turns the LCD display on
+    pad.init();                       // Turns the gamepad on
+    pad.leds_off();                   // Turns the LEDs OFF
+
+// Main Game Section
 
 setup();
-while (!gameOver)
+while (!endGame)
 {
-    draw();
-
+    display();
+    control();
+    gameplay();
+    wait (0.06);                       // Sets how often the while loop functions can adjust the speed of the game!
 }