gamepadtest.java

来自「java learn PPT java learn PPT java learn」· Java 代码 · 共 117 行

     public class GamepadTest
     {
          // masks for the gamepad buttons
          public static final int BUTTON_1 = 0x10;
          public static final int BUTTON_2 = 0x20;

          // the x and y axis of the crosspad
          public static final int GAMEPAD_AXIS_X = 1;
          public static final int GAMEPAD_AXIS_Y = 2;

          // the "centered" state of the crosspad
          public static int centerX;
          public static int centerY;

          // the max/min "bounds" of the crosspad
          public static int maxX;
          public static int minX;
          public static int maxY;
          public static int minY;

          // determines if the given button is being pressed
          public native int  gamepadButtonPressed(int button);

          // returns the position of the sent axis
          public native int  gamepadAxis(int axis);

          // load the shared library     
          static 
          {
               System.loadLibrary("GamepadImpl");
          }

          // creates a new GamepadTest object and calibrates the gamepad
          public GamepadTest()
          {
               calibrateGamepad();
          }

          
          public void calibrateGamepad()
          {
               System.out.println("Swirl the gamepad around a bit then hit any button");

               // initialize the bounds to impossible values
               maxX = 0;
               maxY = 0;
               minX = 100000;
               minY = 100000;

               int x = 0;
               int y = 0;
               while(0 == gamepadButtonPressed(BUTTON_1 | BUTTON_2))
               {
                    x = gamepadAxis(GAMEPAD_AXIS_X);
                    y = gamepadAxis(GAMEPAD_AXIS_Y);

                    // update the max/min values as the user swirls the crosspad                  
                    maxX = Math.max(x, maxX);
                    minX = Math.min(x, minX);
                    maxY = Math.max(y, maxY);
                    minY = Math.min(y, minY);
               }

               // user let go of the crosspad; this must be our center position
               centerX = x;
               centerY = y;
               
               System.out.println("Calbration complete!");
               System.out.println("xmin: " + minX + " xcenter: " + centerX + " xmax: " + maxX);
               System.out.println("ymin: " + minY + " ycenter: " + centerY + " ymax: " + maxY);
          }

          public static void main(String args[])
          {
               GamepadTest test = new GamepadTest();

               int lastX = test.gamepadAxis(GAMEPAD_AXIS_X);
               int lastY = test.gamepadAxis(GAMEPAD_AXIS_Y);

               while(true)
               {
                    // output any button-down states
                    if(test.gamepadButtonPressed(BUTTON_1) != 0)
                    {
                         System.out.println("Button 1 down!");
                    }
                    if(test.gamepadButtonPressed(BUTTON_2) != 0)
                    {
                         System.out.println("Button 2 down!");
                    }

                    // output the crosspad states
                    int x = test.gamepadAxis(GAMEPAD_AXIS_X);
                    int y = test.gamepadAxis(GAMEPAD_AXIS_Y);

                    if(x > centerX)
                    {      
                         System.out.println("+x");
                    }
                    else if(x < centerX)
                    {      
                         System.out.println("-x");
                    }

                    if(y > centerY)
                    {      
                         System.out.println("+y");
                    }
                    else if(y < centerY)
                    {      
                         System.out.println("-y");
                    }

               }
          }
     }    // GamepadTest