1 package com.replica.replicaisland;
2 
3 import android.content.Context;
4 import android.content.pm.PackageManager;
5 import android.view.MotionEvent;
6 
7 public class MultiTouchFilter extends SingleTouchFilter {
8 	private boolean mCheckedForMultitouch = false;
9 	private boolean mSupportsMultitouch = false;
10 
11     @Override
updateTouch(MotionEvent event)12     public void updateTouch(MotionEvent event) {
13 		ContextParameters params = sSystemRegistry.contextParameters;
14     	final int pointerCount = event.getPointerCount();
15     	for (int x = 0; x < pointerCount; x++) {
16     		final int action = event.getAction();
17     		final int actualEvent = action & MotionEvent.ACTION_MASK;
18     		final int id = event.getPointerId(x);
19     		if (actualEvent == MotionEvent.ACTION_POINTER_UP ||
20     				actualEvent == MotionEvent.ACTION_UP ||
21     				actualEvent == MotionEvent.ACTION_CANCEL) {
22         		BaseObject.sSystemRegistry.inputSystem.touchUp(id,
23         				event.getX(x) * (1.0f / params.viewScaleX),
24         				event.getY(x) * (1.0f / params.viewScaleY));
25         	} else {
26         		BaseObject.sSystemRegistry.inputSystem.touchDown(id,
27         				event.getX(x) * (1.0f / params.viewScaleX),
28         				event.getY(x) * (1.0f / params.viewScaleY));
29         	}
30     	}
31     }
32 
33     @Override
supportsMultitouch(Context context)34     public boolean supportsMultitouch(Context context) {
35     	if (!mCheckedForMultitouch) {
36     		PackageManager packageManager = context.getPackageManager();
37     		mSupportsMultitouch = packageManager.hasSystemFeature("android.hardware.touchscreen.multitouch");
38     		mCheckedForMultitouch = true;
39     	}
40 
41     	return mSupportsMultitouch;
42     }
43 }
44