Diff: main.cpp

Revision:

20:f634b1060981

Parent:

19:8907a82ebe09

Child:

21:e03461ea23e9

diff -r 8907a82ebe09 -r f634b1060981 main.cpp
--- a/main.cpp	Wed May 04 19:20:40 2016 +0000
+++ b/main.cpp	Thu May 05 13:31:19 2016 +0000
@@ -44,7 +44,7 @@
     greenLed = 1;
     redLed = 0;
     lcd.init();
-    //snakeIntro();
+    snakeIntro();
     gamePlaying = false;
     button.rise(&buttonISR);
     gameTicker.attach(&timer_isr,0.1);
@@ -58,6 +58,115 @@
  
 }
  
+void mainGame() {
+    
+    if(gameType == classicMode) {
+        hardWall();
+        i = 41;
+        j = 23;
+    }
+    else if(gameType == infiniteMode) {
+        wrapAround();
+        i = 40;
+        j = 22;
+    }
+    else {
+        specialMap();
+        i = 13;
+        j = 5;
+    }
+    generateFood();
+    initSnakeTail();
+    snakeTailLength = 3;
+    score = 0;
+    fruitValue = 10; 
+    pauseCount = 0;   // init everything
+    
+   while(gamePlaying == true) {
+        
+        lcd.setBrightness(1-pot); // turn pot right for brightness
+        
+        if (buttonFlag ==1) {
+            buttonFlag = 0;  
+            if (pauseCount < 3) {
+                gamePaused();
+            }
+            buttonFlag = 0;
+        }
+        buttonFlag = 0;
+        
+        if(game_timer_flag) {
+            game_timer_flag = 0;
+            gameLogic();
+        }
+        if (printFlag) {  // if flag set, clear flag and print joystick values to serial port
+            printFlag = 0;
+            moveSnake();
+            } 
+            sleep(); // put the MCU to sleep until an interrupt wakes it up
+    }
+}  
+
+void mainMenu() {
+    
+        while(1) {
+          
+        lcd.printString("Classic",0,1);
+        lcd.printString("Infinite",0,3);
+        lcd.printString("Hard Map",0,5); 
+        
+        if (rb_flag == 1) {
+            rb_flag = 0;
+            gamePlaying = true;
+            mainGame();  
+        }
+        
+    // check if flag i.e. interrupt has occured
+        if (printFlag ==1) {
+            printFlag = 0;  // if it has, clear the flag
+ 
+            // swap direction when button has been pressed
+            // (could just use ! but want this to be explicit to aid understanding)
+            if (joystick.direction == CENTRE) {
+                serial.printf(" CENTRE\n");
+                menuDirection = menuSTOP;
+                }
+            else if (joystick.direction == UP) {
+                serial.printf(" UP\n");
+                menuDirection = menuUP;
+                buzzer.beep(2000,0.2);    
+            }
+            else if (joystick.direction == DOWN) {
+                serial.printf(" DOWN\n");
+                menuDirection = menuDOWN;
+                buzzer.beep(2000,0.2);  
+            }
+        }
+    
+    
+        menuFSM();
+    
+    
+        wait(0.2); // small delay
+        if (state ==0) {
+        lcd.clear();   
+        lcd.printString("*",70,1);   
+        gameType = classicMode; 
+        }
+        else if (state ==1) {
+        lcd.clear();
+        lcd.printString("*",70,3);
+        gameType = infiniteMode;   
+        }
+        else if (state ==2) {
+        lcd.clear();
+        lcd.printString("*",70,5);
+        gameType = hardMode;  
+        }  
+           
+    } 
+    
+}    
 
 void generateFood()
 {
@@ -200,6 +309,8 @@
         j == 0 || j+1 == 0 ||
         j == 47 || j+1 == 47)
         {
+            i = 41;
+            j = 23;
             gameOver(); 
         }
    
@@ -271,26 +382,31 @@
                 gamePlaying = true;
                 mainGame();
             }
+            rb_flag = 0;
             if (lb_flag == 1) {
                 lb_flag = 0;
                 gamePlaying = false;
                 mainMenu();
-            } 
+            }
             sleep();
         }
-        
 }
 
 
 void specialMap() {
 
     lcd.drawRect(0,0,83,47,0);
+    lcd.drawRect(15,9,1,31,1);
+    lcd.drawRect(33,9,1,31,1);
+    lcd.drawRect(49,9,1,31,1);
     lcd.refresh();
     if (i == 0 || i+1 == 0 ||
         i == 83 || i+1 == 83 || // if any of the 4 pixels within the snake head touch the border
         j == 0 || j+1 == 0 ||
         j == 47 || j+1 == 47)
         {
+            i = 13;
+            j = 5;
             gameOver(); 
         }
       
@@ -346,6 +462,8 @@
     prev2_j = 5;
     }
     
+    snakeTailX[0] = i;
+    snakeTailY[0] = j;
     snakeTailX[1] = prev_i;
     snakeTailY[1] = prev_j;
     snakeTailX[2] = prev2_i;
@@ -392,7 +510,6 @@
      
         wait_ms(100);
         pauseCount++;
-        //gamePlaying = false;
         lcd.clear();
         char buffer[14];
         int length = sprintf(buffer,"%i left",3-pauseCount); // number of pauses left
@@ -412,114 +529,6 @@
               
 }
 
-void mainGame() {
-    
-    if(gameType == classicMode) {
-        hardWall();
-        i = 41;
-        j = 23;
-    }
-    else if(gameType == infiniteMode) {
-        wrapAround();
-        i = 40;
-        j = 22;
-    }
-    else {
-        specialMap();
-        i = 13;
-        j = 5;
-    }
-    generateFood();
-    initSnakeTail();
-    snakeTailLength = 3;
-    score = 0;
-    fruitValue = 10; 
-    pauseCount = 0;   // init everything
-    
-   while(gamePlaying == true) {
-        
-        lcd.setBrightness(1-pot); // turn pot right for brightness
-        
-        if (buttonFlag ==1) {
-            buttonFlag = 0;  
-            if (pauseCount < 3) {
-                gamePaused();
-            }
-        }
-        
-        if(game_timer_flag) {
-            game_timer_flag = 0;
-            gameLogic();
-        }
-        if (printFlag) {  // if flag set, clear flag and print joystick values to serial port
-            printFlag = 0;
-            moveSnake();
-            } 
-            sleep(); // put the MCU to sleep until an interrupt wakes it up
-    }
-}  
-
-void mainMenu() {
-    
-        while(1) {
-     
-        lcd.printString("Classic",0,1);
-        lcd.printString("Infinite",0,3);
-        lcd.printString("Hard Map",0,5); 
-        
-        if (rb_flag == 1) {
-            rb_flag = 0;
-            gamePlaying = true;
-            mainGame();  
-        }
-        
-    // check if flag i.e. interrupt has occured
-        if (printFlag ==1) {
-            printFlag = 0;  // if it has, clear the flag
- 
-            // swap direction when button has been pressed
-            // (could just use ! but want this to be explicit to aid understanding)
-            if (joystick.direction == CENTRE) {
-                serial.printf(" CENTRE\n");
-                menuDirection = menuSTOP;
-                }
-            else if (joystick.direction == UP) {
-                serial.printf(" UP\n");
-                menuDirection = menuUP;
-                buzzer.beep(2000,0.2);    
-            }
-            else if (joystick.direction == DOWN) {
-                serial.printf(" DOWN\n");
-                menuDirection = menuDOWN;
-                buzzer.beep(2000,0.2);  
-            }
-        }
-    
-    
-        menuFSM();
-    
-    
-        wait(0.2); // small delay
-        if (state ==0) {
-        lcd.clear();   
-        lcd.printString("*",70,1);   
-        gameType = classicMode; 
-        }
-        else if (state ==1) {
-        lcd.clear();
-        lcd.printString("*",70,3);
-        gameType = infiniteMode;   
-        }
-        else if (state ==2) {
-        lcd.clear();
-        lcd.printString("*",70,5);
-        gameType = hardMode;  
-        }  
-           
-    } 
-    
-}    
-
 void timer_isr()
 {
 game_timer_flag = 1;