feat(display): increase col/row number

README.md

@@ -5,7 +5,7 @@ An open-source implementation of the Tamagotchi virtual pet game, designed to ru
 ## Bill of Materials
 - Arduino Nano (ATmega328P)
 - KY-023 Joystick Module
-- HD44780 Character LCD
+- HD44780 Character LCD (20x4 or 16x2, can be changed in the code)
 
 ## Development
 After cloning the repository, navigate to the project directory and run `make build` to compile the code. To upload the compiled firmware to your Arduino Nano, use `make upload`.

include/display.hpp

@@ -7,7 +7,7 @@
  */
 class Display {
   public:
-    Display(uint8_t addr = 0x27, uint8_t cols = 16, uint8_t rows = 2);
+    Display(uint8_t addr = 0x27, uint8_t cols = 20, uint8_t rows = 4);
 
     void begin();
     void drawJoystick(double x, double y, bool pressed);

include/joystick.hpp

@@ -25,4 +25,7 @@ class Joystick {
     uint8_t vrx;
     uint8_t vry;
     uint8_t sw;
+
+    const uint8_t xOffset = 13;
+    const uint8_t yOffset = 10;
 };

src/joystick.cpp

@@ -9,11 +9,11 @@ Joystick::Joystick() : vrx(A0), vry(A1), sw(4) {
 
 // Map the analog readings from the joystick to a range of -100 to 100 for both X and Y axes
 double Joystick::getX() const {
-  return map(analogRead(vrx), 0, 1023, -100, 100);
+  return map(analogRead(vrx), 0, 1023, -100, 100) + xOffset;
 }
 
 double Joystick::getY() const {
-  return map(analogRead(vry), 0, 1023, -100, 100);
+  return map(analogRead(vry), 0, 1023, -100, 100) + yOffset;
 }
 
 // Check if the joystick button is pressed (active LOW)