/src/main/java/org/distorted/examples/generic/GenericSurfaceView.java - Annotate - Distorted Android

examples / src / main / java / org / distorted / examples / generic / GenericSurfaceView.java @ ea9b68db

1	08f92d82	Leszek Koltunski	///////////////////////////////////////////////////////////////////////////////////////////////////
2			// Copyright 2016 Leszek Koltunski //
3			// //
4	71c8884f	Leszek Koltunski	// This file is part of Distorted. //
5	08f92d82	Leszek Koltunski	// //
6	71c8884f	Leszek Koltunski	// Distorted is free software: you can redistribute it and/or modify //
7	08f92d82	Leszek Koltunski	// it under the terms of the GNU General Public License as published by //
8			// the Free Software Foundation, either version 2 of the License, or //
9			// (at your option) any later version. //
10			// //
11	71c8884f	Leszek Koltunski	// Distorted is distributed in the hope that it will be useful, //
12	08f92d82	Leszek Koltunski	// but WITHOUT ANY WARRANTY; without even the implied warranty of //
13			// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
14			// GNU General Public License for more details. //
15			// //
16			// You should have received a copy of the GNU General Public License //
17	71c8884f	Leszek Koltunski	// along with Distorted. If not, see <http://www.gnu.org/licenses/>. //
18	08f92d82	Leszek Koltunski	///////////////////////////////////////////////////////////////////////////////////////////////////
19
20	2ec2dc32	Leszek Koltunski	package org.distorted.examples.generic;
21	08f92d82	Leszek Koltunski
22	e4330c89	Leszek Koltunski	import android.app.ActivityManager;
23	08f92d82	Leszek Koltunski	import android.content.Context;
24	e4330c89	Leszek Koltunski	import android.content.pm.ConfigurationInfo;
25	08f92d82	Leszek Koltunski	import android.opengl.GLSurfaceView;
26			import android.util.AttributeSet;
27	833685d0	Leszek Koltunski	import android.view.MotionEvent;
28	08f92d82	Leszek Koltunski
29			///////////////////////////////////////////////////////////////////////////////////////////////////
30
31	46b26cdc	Leszek Koltunski	class GenericSurfaceView extends GLSurfaceView
32	833685d0	Leszek Koltunski	{
33	ea9b68db	Leszek Koltunski	private final static int DIRECTION_SENSITIVITY= 12;
34	833685d0	Leszek Koltunski	private int mX, mY;
35	46b26cdc	Leszek Koltunski	private GenericRenderer mRenderer;
36	833685d0	Leszek Koltunski
37	08f92d82	Leszek Koltunski	///////////////////////////////////////////////////////////////////////////////////////////////////
38
39	46b26cdc	Leszek Koltunski	public GenericSurfaceView(Context context, AttributeSet attrs)
40	833685d0	Leszek Koltunski	{
41	41a81a14	Leszek Koltunski	super(context, attrs);
42	08f92d82	Leszek Koltunski
43	833685d0	Leszek Koltunski	if(!isInEditMode())
44			{
45	46b26cdc	Leszek Koltunski	mRenderer = new GenericRenderer(this);
46	e4330c89	Leszek Koltunski	final ActivityManager activityManager = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
47			final ConfigurationInfo configurationInfo = activityManager.getDeviceConfigurationInfo();
48			setEGLContextClientVersion( (configurationInfo.reqGlEsVersion>>16) >= 3 ? 3:2 );
49	833685d0	Leszek Koltunski	setRenderer(mRenderer);
50	08f92d82	Leszek Koltunski	}
51	833685d0	Leszek Koltunski	}
52
53	d2337a3a	Leszek Koltunski	///////////////////////////////////////////////////////////////////////////////////////////////////
54
55	46b26cdc	Leszek Koltunski	public GenericRenderer getRenderer()
56	d2337a3a	Leszek Koltunski	{
57			return mRenderer;
58			}
59
60	ea9b68db	Leszek Koltunski	///////////////////////////////////////////////////////////////////////////////////////////////////
61
62			private void resetQuats()
63			{
64			float qx = mRenderer.mQuat1.get0();
65			float qy = mRenderer.mQuat1.get1();
66			float qz = mRenderer.mQuat1.get2();
67			float qw = mRenderer.mQuat1.get3();
68
69			float rx = mRenderer.mQuat2.get0();
70			float ry = mRenderer.mQuat2.get1();
71			float rz = mRenderer.mQuat2.get2();
72			float rw = mRenderer.mQuat2.get3();
73
74			float tx = rwqx - rzqy + ryqz + rxqw;
75			float ty = rwqy + rzqx + ryqw - rxqz;
76			float tz = rwqz + rzqw - ryqx + rxqy;
77			float tw = rwqw - rzqz - ryqy - rxqx;
78
79			mRenderer.mQuat1.set(0f, 0f, 0f, 1f);
80			mRenderer.mQuat2.set(tx, ty, tz, tw);
81			}
82
83	833685d0	Leszek Koltunski	///////////////////////////////////////////////////////////////////////////////////////////////////
84
85			@Override
86			public boolean onTouchEvent(MotionEvent event)
87			{
88			int action = event.getAction();
89			int x = (int)event.getX();
90			int y = (int)event.getY();
91
92			switch(action)
93			{
94			case MotionEvent.ACTION_DOWN: mX = x;
95			mY = y;
96			break;
97
98			case MotionEvent.ACTION_MOVE: if( mX>=0 && mY>= 0 )
99			{
100			float px = mY-y;
101			float py = mX-x;
102			float pz = 0;
103			float plen = (float)Math.sqrt(pxpx + pypy + pz*pz);
104
105			if( plen>0 )
106			{
107			px /= plen;
108			py /= plen;
109			pz /= plen;
110
111			float cosA = (float)Math.cos(plen*3.14f/mRenderer.mScreenMin);
112			float sinA = (float)Math.sqrt(1-cosA*cosA);
113
114			mRenderer.mQuat1.set(pxsinA, pysinA, pz*sinA, cosA);
115			}
116			}
117	ea9b68db	Leszek Koltunski
118			if( (mX-x)(mX-x) + (mY-y)(mY-y) > mRenderer.mScreenMinmRenderer.mScreenMin/(DIRECTION_SENSITIVITYDIRECTION_SENSITIVITY) )
119			{
120			mX = x;
121			mY = y;
122			resetQuats();
123			}
124	833685d0	Leszek Koltunski	break;
125
126			case MotionEvent.ACTION_UP : mX = -1;
127			mY = -1;
128	ea9b68db	Leszek Koltunski	resetQuats();
129	833685d0	Leszek Koltunski	break;
130			}
131
132			return true;
133			}
134	08f92d82	Leszek Koltunski	}

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examples / src / main / java / org / distorted / examples / generic / GenericSurfaceView.java @ ea9b68db