Diff: SnakeBody/SnakeBody.cpp

Revision:

8:bcc3403d7e79

Parent:

7:dd84e0fab346

Child:

9:0571880085cc

diff -r dd84e0fab346 -r bcc3403d7e79 SnakeBody/SnakeBody.cpp
--- a/SnakeBody/SnakeBody.cpp	Sun May 24 22:18:55 2020 +0000
+++ b/SnakeBody/SnakeBody.cpp	Mon May 25 14:45:32 2020 +0000
@@ -4,7 +4,7 @@
 {
     _x_head = 42;
     _y_head = 24;
-    _length = 10;
+    _length = 4;
     _angle = -1.0;
     _state = 0;
     _d = 0;
@@ -78,31 +78,37 @@
 
 void SnakeBody::update_body() {
     
-    _body_x.insert(_body_x.begin(), _x_head); //sets first array element to head coordinates  
-    _body_y.insert(_body_y.begin(), _y_head);
+    if ((_x_head % 2) + (_y_head % 2) == 0) {   //only updates body when cell aligned
+        _body_x.insert(_body_x.begin(), _x_head); //sets first array element to head coordinates  
+        _body_y.insert(_body_y.begin(), _y_head);
         
-    _body_x.erase(_body_x.begin() + _length, _body_x.end());
-    _body_y.erase(_body_y.begin() + _length, _body_y.end());
+        _body_x.erase(_body_x.begin() + _length, _body_x.end());
+        _body_y.erase(_body_y.begin() + _length, _body_y.end());
+    }
 }
 
+
 void SnakeBody::draw_body(N5110 &lcd){
     
+    lcd.drawRect(_x_head,_y_head,2,2,FILL_BLACK);
     for(int i = 0; i < _length; i++) {
         lcd.drawRect(_body_x[i],_body_y[i],2,2,FILL_BLACK);
     }
 }
 
-void SnakeBody::snake_snake_collision(Gamepad &pad){
-    for(int i = 1; i < _length; i++) {
-        if (_x_head == _body_x[i] && _y_head == _body_y[i]) { //checks if head coord is the same as any of the body coords
-            pad.led(1,0.9);
-            //printf("DEAD \n");
-            _state = 0;
-            //return true;
-        } else {
-            //pad.led(1,0.0);
-            //printf("ALIVE \n");
-            //return false;
+bool SnakeBody::snake_snake_collision(Gamepad &pad){
+   if (_state > 0) { 
+        for(int i = 3; i < _length; i++) {
+            if (_x_head == _body_x[i] && _y_head == _body_y[i]) { //checks if head coord is the same as any of the body coords
+                pad.led(1,0.9);
+                //printf("DEAD \n");
+                _state = 0;
+                return true;
+            } else {
+                //pad.led(1,0.0);
+                //printf("ALIVE \n");
+                //return false;
+            }
         }
     }    
 }
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