Diff: Snake/Snake.cpp

Revision:

0:80a59a49d504

Child:

1:bd7c99a5bd10

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Snake/Snake.cpp	Sat May 23 19:01:15 2020 +0000
@@ -0,0 +1,190 @@
+#include "Snake.h"
+
+Snake::Snake(){}
+Snake::~Snake(){}
+
+pos apple;
+Body greedy;
+
+void Snake::drawApple(N5110 &lcd){
+    
+        lcd.setPixel(apple.x,apple.y);
+            
+}//end drawing
+void Snake::initApple(){
+        srand(time(NULL));   
+        apple.x = (rand()%49)+6 ;           
+        apple.y = (rand()%25)+9; 
+}// end initializing
+    
+void Snake::produceApple(){
+        
+        srand(time(NULL));
+        apple.x=(rand()%49)+6;
+        apple.y=(rand()%25)+9; //set apple's position
+    
+}
+
+pos Snake::getPos(){
+        return apple;   //set apple's pos
+} //end producing
+
+//***Functions***//
+void Snake::death(N5110 &lcd){
+        
+        Life--; 
+        for (;Life==0;){ 
+        
+            lcd.clear();
+            lcd.printString("     Dead     ",0,1);
+            lcd.printString("   Score:  ",0,2); 
+            
+            char buffer[2];
+            sprintf(buffer,"%2d",L-6);
+            lcd.printString(buffer,60,2);
+            
+            lcd.printString(" Reset to New",0,4);
+            
+            lcd.refresh(); 
+        }  
+        
+        init(beginX,beginY,beginL,Life);
+        
+}
+
+void Snake::WallMeet(N5110 &lcd){
+    
+    if (greedy.bodyX[L]==84 || greedy.bodyX[L]==0          //snake is also called greedy in this game
+            || greedy.bodyY[L]==0 || greedy.bodyY[L]==48 ) //if greedy touch the wall
+        {     
+            death(lcd);
+        }
+
+}//end WallMeet
+
+void Snake::checkBodyMeet(N5110 &lcd){
+        int i = 0;
+        while (i < L - 1){
+                if (greedy.bodyY[L-1]==greedy.bodyY[i] && greedy.bodyX[L-1]==greedy.bodyX[i]  )
+                        {
+                            death(lcd);
+                        }
+                         i++;
+                }
+        }
+
+void Snake::produceBody(){
+       int i = 0;
+       while (i < L){
+               greedy.bodyX[i]=beginX+i;
+               greedy.bodyY[i]=beginY;
+               greedy._Joystick[i]=1;
+               i++;
+       }
+       greedy.bodyX[L] = greedy.bodyX[L-1];
+       greedy.bodyY[L] = greedy.bodyY[L-1];
+       greedy.bodyX[L+1]= greedy.bodyX[L] + 1;
+       greedy.bodyY[L+1]= greedy.bodyY[L] + 1;
+}//end of produceBody
+
+void Snake::init(int _x, int _y, int _L, int _life){//initalize variables     
+    
+    initApple();       //initialize apple
+    beginX= _x;          
+    beginY= _y;
+    beginL= _L;
+    Life= _life;
+    L = _L;           //save variables for further coding
+    initApple();   
+    produceBody();           
+    printf("xog is %d  ", greedy.bodyX[L-1]);
+}//end of init
+
+void Snake::draw(N5110 &lcd){
+        WallMeet(lcd);     // if head==wall game over
+        checkBodyMeet(lcd);     //checking body whether meet wall
+            if (Life != 0 ){
+                lcd.clear();
+                wait(0.15-L*0.001);                
+                drawApple(lcd);//make first apple
+                lcd.drawRect(0,0,84,48,FILL_TRANSPARENT);//draw battlefield
+                int i = 0;
+                while (i < L){
+                              lcd.setPixel(greedy.bodyX[i],greedy.bodyY[i]);
+                              i++;
+             }  
+                lcd.refresh(); 
+       }
+       
+}//end of drawing
+
+//set the joysitick
+void Snake::press(Gamepad &pad){
+    if( pad.check_event(Gamepad:: A_PRESSED) == true        
+            && greedy._Joystick[L-1]!=2) { greedy._Joystick[L-1] =  4 ;}
+    if( pad.check_event(Gamepad:: B_PRESSED) == true       
+            && greedy._Joystick[L-1]!=3) { greedy._Joystick[L-1] =  1 ;}
+    if( pad.check_event(Gamepad:: X_PRESSED) == true        
+            && greedy._Joystick[L-1]!=1) { greedy._Joystick[L-1] =  3;}
+    if( pad.check_event(Gamepad:: Y_PRESSED) == true       
+            && greedy._Joystick[L-1]!=4) { greedy._Joystick[L-1] =  2 ;}
+}
+
+void Snake::changeDir(Gamepad &pad){
+    
+    switch(greedy._Joystick[L-1]){                 
+        case 1: greedy.bodyX[L]++; 
+                greedy.bodyX[L+1] = greedy.bodyX[L]+1;  break;
+        case 2: greedy.bodyY[L]--; 
+                greedy.bodyY[L+1] = greedy.bodyY[L]-1;  break;
+        case 3: greedy.bodyX[L]--; 
+                greedy.bodyX[L+1] = greedy.bodyX[L]-1;  break;
+        case 4: greedy.bodyY[L]++; 
+                greedy.bodyY[L+1] = greedy.bodyY[L]+1;  break;
+    } //change direction
+
+    int i = 0;        //reset body
+    while (i < L){
+        greedy.bodyX[i]=greedy.bodyX[i+1];
+        greedy.bodyY[i]=greedy.bodyY[i+1];
+        i++;
+    }
+    
+    //moving with buttons
+    press(pad);                     
+    d = pad.get_direction();           
+    if (d==N && greedy._Joystick[L-1]!=4 ){ greedy._Joystick[L-1] = 2; }  
+    if (d==E && greedy._Joystick[L-1]!=3 ){ greedy._Joystick[L-1] = 1; }  
+    if (d==W && greedy._Joystick[L-1]!=1 ){ greedy._Joystick[L-1] = 3; }  
+    if (d==S && greedy._Joystick[L-1]!=2 ){ greedy._Joystick[L-1] = 4; } 
+
+} // end changeDir
+
+void Snake::update(Gamepad &pad){
+     
+     if (Life!=0){
+    
+            printf("x+1 is %d", greedy.bodyX[L+1]);
+            printf("y+1 is %d", greedy.bodyY[L+1]);
+            printf("dir+1 is %d", greedy._Joystick[L+1]);
+            printf("length is %d", L);
+
+            changeDir(pad);
+            
+            printf("updated ");
+            
+            if(eatApple()){           
+                greedy.bodyX[L] = greedy.bodyX[L+1];
+                greedy.bodyY[L] = greedy.bodyY[L+1];
+                greedy._Joystick[L] =greedy._Joystick[L-1];
+                L++;
+                produceApple();   //new apple
+                pad.tone(1000.0,0.2);
+            }
+        }
+}
+
+bool Snake:: eatApple(){ 
+    pos applePos = getPos();       //get apple's position
+    return greedy.bodyX[L-1] == applePos.x && greedy.bodyY[L-1]== applePos.y;
+}
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