Diff: SnakeTail/SnakeTail.cpp

Revision:

11:c4b740a970f8

Parent:

7:c67a5c6a874f

Child:

14:4356797fd16e

--- a/SnakeTail/SnakeTail.cpp	Fri May 22 12:29:53 2020 +0000
+++ b/SnakeTail/SnakeTail.cpp	Sat May 23 10:50:43 2020 +0000
@@ -10,31 +10,40 @@
     
 }
 
-void SnakeTail::update(Vector2D headPos, int length)
+void SnakeTail::update(Vector2D prevHead, int length) 
 {
-    int _length = length;
-    int _x = headPos.x;
-    int _y = headPos.y;
-    tailX[0] = _x;
-    tailY[0] = _y;
-    int prevX = tailX[0];
-    int prevY = tailY[0];
+    _length = length;
+    _x_init = prevHead.x;
+    _y_init = prevHead.y;
+    //printf("x_init = %i\n", _x_init);
+    //printf("y_init = %i\n", _y_init);
+    prevX = tailX[0];
+    prevY = tailY[0];
+    tailX[0] = _x_init;
+    tailY[0] = _y_init;
     
     
     
-    for (int i = 1; i < _length; i++) {
+    for(int i = 1; i < _length; i++) {
+        prev2X = tailX[i];
+        prev2Y = tailY[i];
         tailX[i] = prevX;
         tailY[i] = prevY;
-        prevX = tailX[i];
-        prevY = tailY[i];
-        printf("i = %i\n", i);
-        printf("tail x[i]= %i\n", tailX[i]);
-        printf("tail y [i]= %i\n", tailY[i]);
+        prevX = prev2X;
+        prevY = prev2Y;
     }
+    /*for (int l = 0; l < _length; l++) {
+        printf("i = %i\n", l);
+        printf("tailX[i] = %i\n", tailX[l]);
+        printf("tailY[i] = %i\n", tailY[l]);
+        }*/
 }
+        
+
+
 void SnakeTail::draw(N5110 &lcd, int length) {
     int _length = length;
-    for(int j = 1; j < _length; j++) {
+    for(int j = 0; j < _length; j++) {
         lcd.drawRect(tailX[j], tailY[j], 2, 2, FILL_BLACK);
         }
 }