Allow a more direct access to the joystick/button API than via getKey.

Author: aentinger

src/Braccio++.cpp

@@ -272,22 +272,22 @@ void BraccioClass::motors_connected_thread() {
 }
 
 int BraccioClass::getKey() {
-  if (digitalRead(BTN_LEFT) == LOW) {
+  if (isJoystickPressed_LEFT()) {
     return 1;
   }
-  if (digitalRead(BTN_RIGHT) == LOW) {
+  if (isJoystickPressed_RIGHT()) {
     return 2;
   }
-  if (digitalRead(BTN_SEL) == LOW) {
+  if (isJoystickPressed_SELECT()) {
     return 3;
   }
-  if (digitalRead(BTN_UP) == LOW) {
+  if (isJoystickPressed_UP()) {
     return 4;
   }
-  if (digitalRead(BTN_DOWN) == LOW) {
+  if (isJoystickPressed_DOWN()) {
     return 5;
   }
-  if (digitalRead(BTN_ENTER) == LOW) {
+  if (isButtonPressed_ENTER()) {
     return 6;
   }
   return 0;

src/Braccio++.h

@@ -146,6 +146,13 @@ class BraccioClass
   int getKey();
   void connectJoystickTo(lv_obj_t* obj);
 
+  inline bool isJoystickPressed_LEFT()   { return (digitalRead(BTN_LEFT) == LOW); }
+  inline bool isJoystickPressed_RIGHT()  { return (digitalRead(BTN_RIGHT) == LOW); }
+  inline bool isJoystickPressed_SELECT() { return (digitalRead(BTN_SEL) == LOW); }
+  inline bool isJoystickPressed_UP()     { return (digitalRead(BTN_UP) == LOW); }
+  inline bool isJoystickPressed_DOWN()   { return (digitalRead(BTN_DOWN) == LOW); }
+  inline bool isButtonPressed_ENTER()    { return (digitalRead(BTN_ENTER) == LOW); }
+
   TFT_eSPI gfx = TFT_eSPI();
 
   bool ping_allowed = true;