用手柄控制 Minecraft

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Minecraft Java 版并不支持通过手柄进行游戏，而只能够使用鼠标和键盘，这无疑是令人遗憾的。如果要用手柄玩 Minecraft，有以下几种比较简单的解决方案：

本文将介绍通过硬件方法映射的步骤。这里用到的硬件包括

  • Arduino Leonardo
  • USB Host Shield

在文章将电键变为鼠标和键盘 —— 实现篇中，笔者正是通过 Arduino Leonardo 模拟了鼠标和键盘。这里也是类似的，通过 Arduino 读取手柄的按键信息，然后转换为对应的鼠标和键盘操作，实现用手柄控制 Minecraft。

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/*
 Example sketch for the Xbox ONE USB library - by guruthree, based on work by
 Kristian Lauszus.
 */

#define SENSITIVITY 4

#include <XBOXONE.h>
#include "Keyboard.h"
#include "Mouse.h"

// Satisfy the IDE, which needs to see the include statment in the ino too.
#ifdef dobogusinclude
#include <spi4teensy3.h>
#endif
#include <SPI.h>

USB Usb;
XBOXONE Xbox(&Usb);

bool click_d = false;
bool click_a = false;
bool click_w = false;
bool click_s = false;
bool click_shift = false;

void setup() {
  Serial.begin(115200);
  Mouse.begin();
  Keyboard.begin();
  //while (!Serial); // Wait for serial port to connect - used on Leonardo, Teensy and other boards with built-in USB CDC serial connection
  if (Usb.Init() == -1) {
    Serial.print(F("\r\nOSC did not start"));
    while (1); //halt
  }
  Serial.print(F("\r\nXBOX USB Library Started"));
}

void loop() {
  Usb.Task();
  if (Xbox.XboxOneConnected) {
    if (Xbox.getAnalogHat(LeftHatX) > 7500 && !click_d) {
      Keyboard.press('d');
      click_d = true;
    }
    if (Xbox.getAnalogHat(LeftHatX) < -7500 && !click_a) {
      Keyboard.press('a');
      click_a = true;
    }
    else if (Xbox.getAnalogHat(LeftHatX) < 2000 && Xbox.getAnalogHat(LeftHatX) > -2000) {
      if (click_d) {
        Keyboard.release('d');
        click_d = false;
      }
      if (click_a) {
        Keyboard.release('a');
        click_a = false;
      }
    }

    if (Xbox.getAnalogHat(LeftHatY) > 7500 && !click_w) {
      Keyboard.press('w');
      click_w = true;
    }
    if (Xbox.getAnalogHat(LeftHatY) < -7500 && !click_s) {
      Keyboard.press('s');
      click_s = true;
    }
    else if (Xbox.getAnalogHat(LeftHatY) < 2000 && Xbox.getAnalogHat(LeftHatY) > -2000) {
      if (click_s) {
        Keyboard.release('s');
        click_s = false;
      }
      if (click_w) {
        Keyboard.release('w');
        click_w = false;
      }
    }

    if (Xbox.getAnalogHat(RightHatX) > 7500) {
      // move mouse right
      Mouse.move(SENSITIVITY, 0);
    }
    if (Xbox.getAnalogHat(RightHatX) < -7500) {
      // move mouse left
      Mouse.move(-SENSITIVITY, 0);
    }

    if (Xbox.getAnalogHat(RightHatY) > 7500) {
      // move mouse up
      Mouse.move(0, -SENSITIVITY);
    }
    if (Xbox.getAnalogHat(RightHatY) < -7500) {
      // move mouse down
      Mouse.move(0, SENSITIVITY);
    }

    // Set rumble effect
    static uint16_t oldL2Value, oldR2Value;
    if (Xbox.getButtonPress(L2) != oldL2Value || Xbox.getButtonPress(R2) != oldR2Value) {
      oldL2Value = Xbox.getButtonPress(L2);
      oldR2Value = Xbox.getButtonPress(R2);
      uint8_t leftRumble = map(oldL2Value, 0, 1023, 0, 255); // Map the trigger values into a byte
      uint8_t rightRumble = map(oldR2Value, 0, 1023, 0, 255);
    }

    if (Xbox.getButtonClick(UP))
      Serial.println(F("Up"));
    if (Xbox.getButtonClick(DOWN))
      Serial.println(F("Down"));
    if (Xbox.getButtonClick(LEFT))
      Serial.println(F("Left"));
    if (Xbox.getButtonClick(RIGHT))
      Serial.println(F("Right"));

    if (Xbox.getButtonClick(START)) {
      Keyboard.press(KEY_ESC);
      Keyboard.release(KEY_ESC);
      Serial.println(F("Start"));
    }
    if (Xbox.getButtonClick(BACK))
      Serial.println(F("Back"));
    if (Xbox.getButtonClick(XBOX))
      Serial.println(F("Xbox"));
    if (Xbox.getButtonClick(SYNC))
      Serial.println(F("Sync"));

    if (Xbox.getButtonClick(L1))
      Serial.println(F("L1"));
    if (Xbox.getButtonClick(R1))
      Serial.println(F("R1"));
    if (Xbox.getButtonPress(L2) > 768 && !click_shift) {
      Keyboard.press(KEY_LEFT_SHIFT);
      click_shift = true;
    }
    else if (Xbox.getButtonPress(L2) < 256 && click_shift) {
      Keyboard.release(KEY_LEFT_SHIFT);
      click_shift = false;
    }
    if (Xbox.getButtonClick(R2))
      Serial.println(F("R2"));
    if (Xbox.getButtonClick(L3))
      Serial.println(F("L3"));
    if (Xbox.getButtonClick(R3))
      Serial.println(F("R3"));

    if (Xbox.getButtonPress(A)) {
      Keyboard.press(0x20);
      Serial.println(F("A"));
    } else {
      Keyboard.release(0x20);
    }
    if (Xbox.getButtonClick(B))
      Serial.println(F("B"));
    if (Xbox.getButtonClick(X)) {
      Keyboard.print("/");
      delay(200);
      Keyboard.println("time set 0");
      Serial.println(F("X"));
    }
    if (Xbox.getButtonClick(Y))
      Serial.println(F("Y"));
  }
  delay(1);
}