java/src/de/hardcode/jxinput/directinput/DirectInputDevice.java

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+//**********************************************************************************************
+//		(C) Copyright 2002 by Dipl. Phys. Joerg Plewe, HARDCODE Development
+//		All rights reserved. Copying, modification,
+//		distribution or publication without the prior written
+//		consent of the author is prohibited.
+//
+//	Created on 26. Dezember 2001, 00:40
+//**********************************************************************************************
+package de.hardcode.jxinput.directinput;
+
+import de.hardcode.jxinput.JXInputDevice;
+import de.hardcode.jxinput.Axis;
+import de.hardcode.jxinput.Directional;
+import de.hardcode.jxinput.Button;
+
+/**
+ *
+ * @author  Herkules
+ */
+public class DirectInputDevice implements JXInputDevice
+{		
+    int mDeviceIdx;
+    
+	private	DIAxis[]			mAxes;
+	private	DIButton[]			mButtons;
+	private	DIDirectional[]		mDirectionals;
+	
+	/**
+	 * The number of DirectInput devices available with the driver.
+	 */
+    public static int getNumberOfDevices()
+	{
+		if ( DirectInputDriver.isAvailable() )
+			return DirectInputDriver.getNumberOfDevices();
+		return 0;
+	}
+	
+	
+	/**
+	 * Update the state of all devices.
+	 */
+	public static void update()
+	{
+		if ( DirectInputDriver.isAvailable() )
+			DirectInputDriver.nativeupdate();
+    }
+
+    
+    
+	
+	/** 
+	 * Creates a new instance of DirectInputDevice.
+	 */
+	public DirectInputDevice( int devidx )
+	{	
+        mDeviceIdx = devidx;
+
+		init();
+	}
+
+    /**
+     * Reset the DirectInput connection.
+     */
+    public static void reset()
+    {
+		if ( DirectInputDriver.isAvailable() )
+            DirectInputDriver.reset();
+    }
+
+	
+	/**
+	 * Initialisation of fields.
+	 */
+	private final void init()
+	{
+        //
+        // Allocate arrays for max. number of features
+        //
+        mAxes			= new DIAxis		[ getMaxNumberOfAxes()			];
+        mButtons		= new DIButton		[ getMaxNumberOfButtons()		];
+        mDirectionals	= new DIDirectional	[ getMaxNumberOfDirectionals()	];
+		
+        //
+        // Fill arrays due to the state of the driver.
+        //
+		for ( int i = 0; i < mAxes.length; ++i )
+		{
+			if ( DirectInputDriver.isAxisAvailable( mDeviceIdx, i ) )
+				mAxes[ i ] = new DIAxis( mDeviceIdx, i );
+		}
+		
+		for ( int i = 0; i < mButtons.length; ++i )
+		{
+			if ( DirectInputDriver.isButtonAvailable( mDeviceIdx, i ) )
+				mButtons[ i ] = new DIButton( mDeviceIdx, i );
+		}
+
+		for ( int i = 0; i < mDirectionals.length; ++i )
+		{
+			if ( DirectInputDriver.isDirectionalAvailable( mDeviceIdx, i ) )
+				mDirectionals[ i ] = new DIDirectional( mDeviceIdx, i );
+		}		
+	}
+	
+    /** Devices may have a name.  */
+	public String getName()
+	{
+		String name = DirectInputDriver.getName( mDeviceIdx );
+		if ( null == name )
+			return "Win32 DirectInput Joystick";
+		return name;
+	}
+
+	
+	/** Actual number of available buttons.  */
+	public int getNumberOfButtons()
+	{
+		return DirectInputDriver.getNumberOfButtons( mDeviceIdx );
+	}
+
+	/** Actual number of available axes.  */
+	public int getNumberOfAxes()
+	{
+		return DirectInputDriver.getNumberOfAxes( mDeviceIdx );
+	}
+
+	/** Actual number of available directional features.  */
+	public int getNumberOfDirectionals()
+	{
+		return DirectInputDriver.getNumberOfDirectionals( mDeviceIdx );
+	}
+	
+	/** Maximum number of buttons as an upper bound for index values.  */
+	public int getMaxNumberOfButtons()
+	{	
+		return DirectInputDriver.getMaxNumberOfButtons();
+	}
+
+	/** Maximum number of axes as an upper bound for index values.  */
+	public int getMaxNumberOfAxes()
+	{
+		return DirectInputDriver.getMaxNumberOfAxes();
+	}
+	
+	/** Maximum number of available directional features.  */
+	public int getMaxNumberOfDirectionals()
+	{
+		return DirectInputDriver.getMaxNumberOfDirectionals();
+	}
+
+    
+	public Axis getAxis(int idx)
+	{
+		return mAxes[ idx ];
+	}
+
+	public Button getButton(int idx)
+	{
+		return mButtons[ idx ];
+	}
+
+	public Directional getDirectional(int idx)
+	{
+		return mDirectionals[ idx ];
+	}
+    
+}
+
+
+