first bot implementation

bot is now able to automatically move, but for now is too skilled, i need to reduce his skills

arduino_pong.ino

@@ -36,7 +36,8 @@ game_statuses game_status= TIMER;
 
 Ball ball(4, 6);
 HumanPaddle p1(1, P1_BTN_UP, P1_BTN_BOTTOM);
-HumanPaddle p2(4, P2_BTN_UP, P2_BTN_BOTTOM);
+// HumanPaddle p2(4, P2_BTN_UP, P2_BTN_BOTTOM);
+BotPaddle p2(4, 1);
 Engine engine(p1, p2, ball, INITIAL_BALL_DELAY);
 Renderer renderer(p1, p2, ball, frame, matrix);
 

src/engine.cpp

@@ -62,8 +62,10 @@ void Engine::run() {
 
 bool Engine::control_players() {
   bool need_refresh= false;
-  need_refresh |= _p1.check_pad_movement();
-  need_refresh |= _p2.check_pad_movement();
+  if (_p1.is_human()) need_refresh |= _p1.check_pad_movement();
+  else need_refresh |= _p1.check_pad_movement(_ball);
+  if (_p2.is_human()) need_refresh |= _p2.check_pad_movement();
+  else need_refresh |= _p2.check_pad_movement(_ball);
   return need_refresh;
 }
 

src/paddle.cpp

@@ -39,6 +39,11 @@ bool Paddle::check_pad_movement() {
   return false;
 }
 
+bool Paddle::check_pad_movement(Ball &ball) {
+  // redefine me
+  return false;
+}
+
 bool HumanPaddle::check_pad_movement() {
   bool need_refresh= false;
   if (digitalRead(_pin_btn_top) == LOW) {
@@ -52,5 +57,15 @@ bool HumanPaddle::check_pad_movement() {
   return need_refresh;
 }
 
-bool BotPaddle::check_pad_movement() {
+bool BotPaddle::check_pad_movement(Ball &ball) {
+  uint8_t y= ball.get_y();
+  // TODO BotPaddle movement logics
+  // on higher difficult level i could also check the ball direction
+  // or at lover difficulty level i could also check the distance from the pad and move only when the ball si near
+  for (uint8_t _py= _position; _py < _position+PADDLE_LENGTH; _py++) {
+    // don't move if ball is already centered to the pad
+    if (_py == y) continue;
+    else if (_position - y >= 0) this -> move_pad_up();
+    else this -> move_pad_down();
+  }
 }

src/paddle.h

@@ -3,6 +3,7 @@
 
 #include <Arduino.h>
 #include "config.h"
+#include "ball.h"
 
 class Paddle {
 
@@ -23,6 +24,7 @@ class Paddle {
     uint8_t get_score();
     void reset();
     virtual bool check_pad_movement();
+    virtual bool check_pad_movement(Ball &ball);
 };
 
 class HumanPaddle : public Paddle {
@@ -45,7 +47,7 @@ class BotPaddle : public Paddle {
                 if (_level < 1) _level= 1;
                 if (_level > 3) _level= 3;
               }
-    bool check_pad_movement();
+    bool check_pad_movement(Ball &ball);
 };
 
 #endif