arduino leonardo joystick control games

1#include <Keyboard.h>
2
3const int joystickX = A0; // horizontal
4const int joystickY = A1; // vertical
5const int buttonPin = 2;  // joystick button for ESC
6const int threshold = 200; // sensitivity around center
7
8void setup() {
9  Serial.begin(9600);
10  Keyboard.begin();
11  pinMode(buttonPin, INPUT_PULLUP); // button uses pull-up
12}
13
14void loop() {
15  int xValue = analogRead(joystickX);
16  int yValue = analogRead(joystickY);
17  bool buttonPressed = digitalRead(buttonPin) == LOW; // pressed = LOW
18
19  Serial.print("X: "); Serial.print(xValue);
20  Serial.print(" Y: "); Serial.print(yValue);
21  Serial.print(" Button: "); Serial.println(buttonPressed);
22
23  // LEFT / RIGHT → A / D
24  if (xValue < 512 - threshold) {       // left
25    Keyboard.press('a');
26  } else if (xValue > 512 + threshold) { // right
27    Keyboard.press('d');
28  } else {
29    Keyboard.release('a');
30    Keyboard.release('d');
31  }
32
33  // UP / DOWN → W / S
34  if (yValue < 512 - threshold) {       // up
35    Keyboard.press('w');
36  } else if (yValue > 512 + threshold) { // down
37    Keyboard.press('s');
38  } else {
39    Keyboard.release('w');
40    Keyboard.release('s');
41  }
42
43  // Button → ESC
44  if (buttonPressed) {
45    Keyboard.press(KEY_ESC);
46  } else {
47    Keyboard.release(KEY_ESC);
48  }
49
50  delay(20); // small delay for stability
51}