1 |
5b4a2d76
|
Leszek Koltunski
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
2 |
8647eae2
|
Leszek Koltunski
|
// Copyright 2019 Leszek Koltunski //
|
3 |
5b4a2d76
|
Leszek Koltunski
|
// //
|
4 |
|
|
// This file is part of Distorted. //
|
5 |
|
|
// //
|
6 |
|
|
// Distorted is free software: you can redistribute it and/or modify //
|
7 |
|
|
// 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 |
|
|
// Distorted is distributed in the hope that it will be useful, //
|
12 |
|
|
// 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 |
|
|
// along with Distorted. If not, see <http://www.gnu.org/licenses/>. //
|
18 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
19 |
|
|
|
20 |
|
|
package org.distorted.examples.rubik;
|
21 |
|
|
|
22 |
|
|
import android.app.ActivityManager;
|
23 |
|
|
import android.content.Context;
|
24 |
|
|
import android.content.pm.ConfigurationInfo;
|
25 |
|
|
import android.opengl.GLSurfaceView;
|
26 |
|
|
import android.view.MotionEvent;
|
27 |
|
|
|
28 |
e4c0057e
|
Leszek Koltunski
|
import org.distorted.library.type.Static4D;
|
29 |
|
|
|
30 |
5b4a2d76
|
Leszek Koltunski
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
31 |
|
|
|
32 |
|
|
class RubikSurfaceView extends GLSurfaceView
|
33 |
|
|
{
|
34 |
840d83be
|
Leszek Koltunski
|
private final static int NONE =-1;
|
35 |
c6223217
|
Leszek Koltunski
|
private final static int FRONT = 0; // has to be 6 consecutive ints
|
36 |
|
|
private final static int BACK = 1; // FRONT ... BOTTOM
|
37 |
|
|
private final static int LEFT = 2; //
|
38 |
|
|
private final static int RIGHT = 3; //
|
39 |
|
|
private final static int TOP = 4; //
|
40 |
|
|
private final static int BOTTOM = 5; //
|
41 |
e4c0057e
|
Leszek Koltunski
|
|
42 |
dc8979ba
|
Leszek Koltunski
|
static final int VECTX = 0; //
|
43 |
|
|
static final int VECTY = 1; // dont change this
|
44 |
|
|
static final int VECTZ = 2; //
|
45 |
|
|
|
46 |
|
|
private static final int[] VECT = {VECTX,VECTY,VECTZ};
|
47 |
840d83be
|
Leszek Koltunski
|
|
48 |
7f986357
|
Leszek Koltunski
|
private boolean mDragging, mBeginRot;
|
49 |
5b4a2d76
|
Leszek Koltunski
|
private int mX, mY;
|
50 |
94cc96ff
|
Leszek Koltunski
|
private Static4D mQuatCurrent, mQuatAccumulated;
|
51 |
c6223217
|
Leszek Koltunski
|
private int mRotationVect;
|
52 |
5b4a2d76
|
Leszek Koltunski
|
private RubikRenderer mRenderer;
|
53 |
8647eae2
|
Leszek Koltunski
|
private RubikCube mCube;
|
54 |
5b4a2d76
|
Leszek Koltunski
|
|
55 |
8fbe9426
|
Leszek Koltunski
|
private float[] mPoint, mCamera, mTouchPointCastOntoFace, mDiff, mTouchPoint; // all in screen space
|
56 |
840d83be
|
Leszek Koltunski
|
private int mLastTouchedFace;
|
57 |
18709ae0
|
Leszek Koltunski
|
private int mScreenWidth, mScreenHeight, mScreenMin;
|
58 |
|
|
private float mCameraDistance;
|
59 |
840d83be
|
Leszek Koltunski
|
|
60 |
5b4a2d76
|
Leszek Koltunski
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
61 |
|
|
|
62 |
|
|
public RubikSurfaceView(Context context)
|
63 |
|
|
{
|
64 |
|
|
super(context);
|
65 |
|
|
|
66 |
e4c0057e
|
Leszek Koltunski
|
mDragging = false;
|
67 |
7f986357
|
Leszek Koltunski
|
mBeginRot = false;
|
68 |
dc8979ba
|
Leszek Koltunski
|
mRotationVect = VECT[0];
|
69 |
|
|
|
70 |
8fbe9426
|
Leszek Koltunski
|
mPoint = new float[3];
|
71 |
|
|
mCamera= new float[3];
|
72 |
dc8979ba
|
Leszek Koltunski
|
mDiff = new float[3];
|
73 |
8fbe9426
|
Leszek Koltunski
|
mTouchPoint = new float[3];
|
74 |
|
|
mTouchPointCastOntoFace = new float[3];
|
75 |
c6223217
|
Leszek Koltunski
|
|
76 |
18709ae0
|
Leszek Koltunski
|
mScreenWidth = mScreenHeight = mScreenMin = 0;
|
77 |
|
|
|
78 |
5b4a2d76
|
Leszek Koltunski
|
mRenderer = new RubikRenderer(this);
|
79 |
8647eae2
|
Leszek Koltunski
|
mCube = mRenderer.getCube();
|
80 |
94cc96ff
|
Leszek Koltunski
|
|
81 |
|
|
mQuatCurrent = new Static4D(0,0,0,1);
|
82 |
|
|
mQuatAccumulated = mRenderer.initializeQuat();
|
83 |
|
|
|
84 |
5b4a2d76
|
Leszek Koltunski
|
final ActivityManager activityManager = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
|
85 |
|
|
final ConfigurationInfo configurationInfo = activityManager.getDeviceConfigurationInfo();
|
86 |
|
|
setEGLContextClientVersion( (configurationInfo.reqGlEsVersion>>16) >= 3 ? 3:2 );
|
87 |
|
|
setRenderer(mRenderer);
|
88 |
|
|
}
|
89 |
|
|
|
90 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
91 |
|
|
|
92 |
|
|
public RubikRenderer getRenderer()
|
93 |
|
|
{
|
94 |
|
|
return mRenderer;
|
95 |
|
|
}
|
96 |
|
|
|
97 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
98 |
|
|
|
99 |
e4c0057e
|
Leszek Koltunski
|
@Override
|
100 |
|
|
public boolean onTouchEvent(MotionEvent event)
|
101 |
5b4a2d76
|
Leszek Koltunski
|
{
|
102 |
|
|
int action = event.getAction();
|
103 |
|
|
int x = (int)event.getX();
|
104 |
|
|
int y = (int)event.getY();
|
105 |
|
|
|
106 |
|
|
switch(action)
|
107 |
|
|
{
|
108 |
840d83be
|
Leszek Koltunski
|
case MotionEvent.ACTION_DOWN: mX = x;
|
109 |
|
|
mY = y;
|
110 |
|
|
mLastTouchedFace = faceTouched(x,y);
|
111 |
|
|
|
112 |
7f986357
|
Leszek Koltunski
|
if( mLastTouchedFace != NONE ) mBeginRot = true;
|
113 |
d0418bda
|
Leszek Koltunski
|
else mDragging = true;
|
114 |
|
|
|
115 |
5b4a2d76
|
Leszek Koltunski
|
break;
|
116 |
94cc96ff
|
Leszek Koltunski
|
case MotionEvent.ACTION_MOVE: if( mDragging )
|
117 |
|
|
{
|
118 |
|
|
mQuatCurrent.set(quatFromDrag(mX-x,mY-y));
|
119 |
|
|
mRenderer.setQuatCurrent(mQuatCurrent);
|
120 |
|
|
}
|
121 |
7f986357
|
Leszek Koltunski
|
else if( mBeginRot )
|
122 |
840d83be
|
Leszek Koltunski
|
{
|
123 |
f843630b
|
Leszek Koltunski
|
int minimumToRotate = (mScreenMin*mScreenMin)/100;
|
124 |
840d83be
|
Leszek Koltunski
|
|
125 |
|
|
if( (mX-x)*(mX-x)+(mY-y)*(mY-y)>minimumToRotate )
|
126 |
|
|
{
|
127 |
c6223217
|
Leszek Koltunski
|
addNewRotation(x,y);
|
128 |
7f986357
|
Leszek Koltunski
|
mBeginRot = false;
|
129 |
840d83be
|
Leszek Koltunski
|
}
|
130 |
|
|
}
|
131 |
c6223217
|
Leszek Koltunski
|
else
|
132 |
|
|
{
|
133 |
|
|
continueRotation(x,y);
|
134 |
|
|
}
|
135 |
e4c0057e
|
Leszek Koltunski
|
break;
|
136 |
c6223217
|
Leszek Koltunski
|
case MotionEvent.ACTION_UP : if( !mDragging ) finishRotation();
|
137 |
|
|
|
138 |
|
|
mDragging = false;
|
139 |
7f986357
|
Leszek Koltunski
|
mBeginRot = false;
|
140 |
840d83be
|
Leszek Koltunski
|
|
141 |
94cc96ff
|
Leszek Koltunski
|
mQuatAccumulated.set(quatMultiply(mQuatCurrent, mQuatAccumulated));
|
142 |
|
|
mQuatCurrent.set(0f, 0f, 0f, 1f);
|
143 |
|
|
mRenderer.setQuatCurrent(mQuatCurrent);
|
144 |
|
|
mRenderer.setQuatAccumulated(mQuatAccumulated);
|
145 |
5b4a2d76
|
Leszek Koltunski
|
break;
|
146 |
|
|
}
|
147 |
|
|
|
148 |
|
|
return true;
|
149 |
|
|
}
|
150 |
|
|
|
151 |
7f986357
|
Leszek Koltunski
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
152 |
|
|
|
153 |
|
|
void setScreenSize(int width, int height)
|
154 |
|
|
{
|
155 |
|
|
mScreenWidth = width;
|
156 |
|
|
mScreenHeight= height;
|
157 |
|
|
|
158 |
|
|
mScreenMin = width<height ? width:height;
|
159 |
|
|
}
|
160 |
|
|
|
161 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
162 |
|
|
|
163 |
483ae94e
|
Leszek Koltunski
|
void setCameraDist(float distance)
|
164 |
7f986357
|
Leszek Koltunski
|
{
|
165 |
483ae94e
|
Leszek Koltunski
|
mCameraDistance = distance;
|
166 |
7f986357
|
Leszek Koltunski
|
}
|
167 |
|
|
|
168 |
840d83be
|
Leszek Koltunski
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
169 |
|
|
|
170 |
dc8979ba
|
Leszek Koltunski
|
private int faceTouched(int xTouch, int yTouch)
|
171 |
840d83be
|
Leszek Koltunski
|
{
|
172 |
dc8979ba
|
Leszek Koltunski
|
float cubeHalfSize= mRenderer.returnCubeSizeInScreenSpace()*0.5f;
|
173 |
840d83be
|
Leszek Koltunski
|
|
174 |
dc8979ba
|
Leszek Koltunski
|
convertTouchPointToScreenSpace(xTouch,yTouch);
|
175 |
|
|
convertCameraPointToScreenSpace();
|
176 |
840d83be
|
Leszek Koltunski
|
|
177 |
dc8979ba
|
Leszek Koltunski
|
for(int face=FRONT; face<=BOTTOM; face++)
|
178 |
840d83be
|
Leszek Koltunski
|
{
|
179 |
dc8979ba
|
Leszek Koltunski
|
if( faceIsVisible(face,cubeHalfSize) )
|
180 |
|
|
{
|
181 |
8fbe9426
|
Leszek Koltunski
|
castTouchPointOntoFace(face,cubeHalfSize, mTouchPointCastOntoFace);
|
182 |
840d83be
|
Leszek Koltunski
|
|
183 |
8fbe9426
|
Leszek Koltunski
|
float qX= (mTouchPointCastOntoFace[0]+cubeHalfSize) / (2*cubeHalfSize);
|
184 |
|
|
float qY= (mTouchPointCastOntoFace[1]+cubeHalfSize) / (2*cubeHalfSize);
|
185 |
|
|
float qZ= (mTouchPointCastOntoFace[2]+cubeHalfSize) / (2*cubeHalfSize);
|
186 |
f843630b
|
Leszek Koltunski
|
|
187 |
dc8979ba
|
Leszek Koltunski
|
if( qX<=1 && qX>=0 && qY<=1 && qY>=0 && qZ<=1 && qZ>=0 ) return face;
|
188 |
|
|
}
|
189 |
f843630b
|
Leszek Koltunski
|
}
|
190 |
c6223217
|
Leszek Koltunski
|
|
191 |
dc8979ba
|
Leszek Koltunski
|
return NONE;
|
192 |
|
|
}
|
193 |
|
|
|
194 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
195 |
|
|
|
196 |
|
|
private void addNewRotation(int x, int y)
|
197 |
|
|
{
|
198 |
|
|
float cubeHalfSize= mRenderer.returnCubeSizeInScreenSpace()*0.5f;
|
199 |
|
|
|
200 |
|
|
convertTouchPointToScreenSpace(x,y);
|
201 |
|
|
castTouchPointOntoFace(mLastTouchedFace,cubeHalfSize,mDiff);
|
202 |
|
|
|
203 |
8fbe9426
|
Leszek Koltunski
|
mDiff[0] -= mTouchPointCastOntoFace[0];
|
204 |
|
|
mDiff[1] -= mTouchPointCastOntoFace[1];
|
205 |
|
|
mDiff[2] -= mTouchPointCastOntoFace[2];
|
206 |
dc8979ba
|
Leszek Koltunski
|
|
207 |
|
|
int xAxis = retFaceXaxis(mLastTouchedFace);
|
208 |
|
|
int yAxis = retFaceYaxis(mLastTouchedFace);
|
209 |
|
|
mRotationVect = (isVertical( mDiff[xAxis], mDiff[yAxis]) ? VECT[xAxis]:VECT[yAxis]);
|
210 |
8fbe9426
|
Leszek Koltunski
|
float offset= (mTouchPointCastOntoFace[mRotationVect]+cubeHalfSize)/(2*cubeHalfSize);
|
211 |
dc8979ba
|
Leszek Koltunski
|
|
212 |
8fbe9426
|
Leszek Koltunski
|
mTouchPoint[0] = mPoint[0];
|
213 |
|
|
mTouchPoint[1] = mPoint[1];
|
214 |
|
|
mTouchPoint[2] = mPoint[2];
|
215 |
7f986357
|
Leszek Koltunski
|
|
216 |
|
|
mCube.addNewRotation(mRotationVect,offset);
|
217 |
c6223217
|
Leszek Koltunski
|
}
|
218 |
|
|
|
219 |
f843630b
|
Leszek Koltunski
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
220 |
|
|
|
221 |
|
|
private boolean isVertical(float x, float y)
|
222 |
|
|
{
|
223 |
|
|
return (y>x) ? (y>=-x) : (y< -x);
|
224 |
|
|
}
|
225 |
|
|
|
226 |
c6223217
|
Leszek Koltunski
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
227 |
483ae94e
|
Leszek Koltunski
|
// 240 --> moving finger from the middle of the vertical screen to the right edge will rotate a
|
228 |
|
|
// given face by 240/2 = 120 degrees.
|
229 |
c6223217
|
Leszek Koltunski
|
|
230 |
|
|
private void continueRotation(int x, int y)
|
231 |
|
|
{
|
232 |
dc8979ba
|
Leszek Koltunski
|
convertTouchPointToScreenSpace(x,y);
|
233 |
c6223217
|
Leszek Koltunski
|
|
234 |
8fbe9426
|
Leszek Koltunski
|
mDiff[0] = mPoint[0]-mTouchPoint[0];
|
235 |
|
|
mDiff[1] = mPoint[1]-mTouchPoint[1];
|
236 |
|
|
mDiff[2] = mPoint[2]-mTouchPoint[2];
|
237 |
c6223217
|
Leszek Koltunski
|
|
238 |
dc8979ba
|
Leszek Koltunski
|
int xAxis= retFaceXaxis(mLastTouchedFace);
|
239 |
|
|
int yAxis= retFaceYaxis(mLastTouchedFace);
|
240 |
|
|
int sign = retFaceRotationSign(mLastTouchedFace);
|
241 |
|
|
float angle = (mRotationVect==xAxis ? mDiff[yAxis] : -mDiff[xAxis]);
|
242 |
c6223217
|
Leszek Koltunski
|
|
243 |
7f62afde
|
Leszek Koltunski
|
mCube.continueRotation(240.0f*sign*angle/mScreenMin);
|
244 |
c6223217
|
Leszek Koltunski
|
}
|
245 |
|
|
|
246 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
247 |
|
|
|
248 |
|
|
private void finishRotation()
|
249 |
|
|
{
|
250 |
|
|
mRenderer.finishRotation();
|
251 |
|
|
}
|
252 |
|
|
|
253 |
e4c0057e
|
Leszek Koltunski
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
254 |
|
|
// return quat1*quat2
|
255 |
|
|
|
256 |
8be29dfc
|
Leszek Koltunski
|
static Static4D quatMultiply( Static4D quat1, Static4D quat2 )
|
257 |
e4c0057e
|
Leszek Koltunski
|
{
|
258 |
|
|
float qx = quat1.get1();
|
259 |
|
|
float qy = quat1.get2();
|
260 |
|
|
float qz = quat1.get3();
|
261 |
|
|
float qw = quat1.get4();
|
262 |
|
|
|
263 |
|
|
float rx = quat2.get1();
|
264 |
|
|
float ry = quat2.get2();
|
265 |
|
|
float rz = quat2.get3();
|
266 |
|
|
float rw = quat2.get4();
|
267 |
|
|
|
268 |
|
|
float tx = rw*qx - rz*qy + ry*qz + rx*qw;
|
269 |
|
|
float ty = rw*qy + rz*qx + ry*qw - rx*qz;
|
270 |
|
|
float tz = rw*qz + rz*qw - ry*qx + rx*qy;
|
271 |
|
|
float tw = rw*qw - rz*qz - ry*qy - rx*qx;
|
272 |
|
|
|
273 |
|
|
return new Static4D(tx,ty,tz,tw);
|
274 |
|
|
}
|
275 |
|
|
|
276 |
d0418bda
|
Leszek Koltunski
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
277 |
|
|
// rotate 'vector' by quat^(-1) ( i.e. return (quat^-1)*vector*quat )
|
278 |
|
|
|
279 |
|
|
static Static4D rotateVectorByInvertedQuat(Static4D vector, Static4D quat)
|
280 |
|
|
{
|
281 |
|
|
float qx = quat.get1();
|
282 |
|
|
float qy = quat.get2();
|
283 |
|
|
float qz = quat.get3();
|
284 |
|
|
float qw = quat.get4();
|
285 |
|
|
|
286 |
|
|
Static4D quatInverted= new Static4D(-qx,-qy,-qz,qw);
|
287 |
|
|
Static4D tmp = quatMultiply(quatInverted,vector);
|
288 |
|
|
|
289 |
|
|
return quatMultiply(tmp,quat);
|
290 |
|
|
}
|
291 |
|
|
|
292 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
293 |
|
|
// rotate 'vector' by quat ( i.e. return quat*vector*(quat^-1) )
|
294 |
|
|
|
295 |
|
|
static Static4D rotateVectorByQuat(Static4D vector, Static4D quat)
|
296 |
|
|
{
|
297 |
|
|
float qx = quat.get1();
|
298 |
|
|
float qy = quat.get2();
|
299 |
|
|
float qz = quat.get3();
|
300 |
|
|
float qw = quat.get4();
|
301 |
|
|
|
302 |
|
|
Static4D quatInverted= new Static4D(-qx,-qy,-qz,qw);
|
303 |
|
|
Static4D tmp = quatMultiply(quat,vector);
|
304 |
|
|
|
305 |
|
|
return quatMultiply(tmp,quatInverted);
|
306 |
|
|
}
|
307 |
|
|
|
308 |
e4c0057e
|
Leszek Koltunski
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
309 |
|
|
|
310 |
|
|
private Static4D quatFromDrag(float dragX, float dragY)
|
311 |
|
|
{
|
312 |
|
|
float axisX = dragY; // inverted X and Y - rotation axis is
|
313 |
d0418bda
|
Leszek Koltunski
|
float axisY = dragX; // perpendicular to (dragX,dragY) Why not (-dragY, dragX) ? because Y axis is also inverted!
|
314 |
e4c0057e
|
Leszek Koltunski
|
float axisZ = 0;
|
315 |
|
|
float axisL = (float)Math.sqrt(axisX*axisX + axisY*axisY + axisZ*axisZ);
|
316 |
|
|
|
317 |
|
|
if( axisL>0 )
|
318 |
|
|
{
|
319 |
|
|
axisX /= axisL;
|
320 |
|
|
axisY /= axisL;
|
321 |
|
|
axisZ /= axisL;
|
322 |
|
|
|
323 |
18709ae0
|
Leszek Koltunski
|
float cosA = (float)Math.cos(axisL*Math.PI/mScreenMin);
|
324 |
e4c0057e
|
Leszek Koltunski
|
float sinA = (float)Math.sqrt(1-cosA*cosA);
|
325 |
|
|
|
326 |
|
|
return new Static4D(axisX*sinA, axisY*sinA, axisZ*sinA, cosA);
|
327 |
|
|
}
|
328 |
|
|
|
329 |
|
|
return new Static4D(0f, 0f, 0f, 1f);
|
330 |
|
|
}
|
331 |
|
|
|
332 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
333 |
|
|
|
334 |
dc8979ba
|
Leszek Koltunski
|
private boolean faceIsVisible(int face, float cubeHalfSize)
|
335 |
e4c0057e
|
Leszek Koltunski
|
{
|
336 |
dc8979ba
|
Leszek Koltunski
|
int sign = retFaceSign(face);
|
337 |
|
|
int zAxis= retFaceZaxis(face);
|
338 |
e4c0057e
|
Leszek Koltunski
|
|
339 |
8fbe9426
|
Leszek Koltunski
|
return sign*mCamera[zAxis] > cubeHalfSize;
|
340 |
dc8979ba
|
Leszek Koltunski
|
}
|
341 |
e4c0057e
|
Leszek Koltunski
|
|
342 |
dc8979ba
|
Leszek Koltunski
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
343 |
e4c0057e
|
Leszek Koltunski
|
|
344 |
dc8979ba
|
Leszek Koltunski
|
private void convertTouchPointToScreenSpace(int x, int y)
|
345 |
|
|
{
|
346 |
|
|
float halfScrWidth = mScreenWidth *0.5f;
|
347 |
|
|
float halfScrHeight = mScreenHeight*0.5f;
|
348 |
|
|
Static4D touchPoint = new Static4D(x-halfScrWidth, halfScrHeight-y, 0, 0);
|
349 |
|
|
Static4D rotatedTouchPoint= rotateVectorByInvertedQuat(touchPoint, mQuatAccumulated);
|
350 |
|
|
|
351 |
8fbe9426
|
Leszek Koltunski
|
mPoint[0] = rotatedTouchPoint.get1();
|
352 |
|
|
mPoint[1] = rotatedTouchPoint.get2();
|
353 |
|
|
mPoint[2] = rotatedTouchPoint.get3();
|
354 |
e4c0057e
|
Leszek Koltunski
|
}
|
355 |
|
|
|
356 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
357 |
|
|
|
358 |
dc8979ba
|
Leszek Koltunski
|
private void convertCameraPointToScreenSpace()
|
359 |
e4c0057e
|
Leszek Koltunski
|
{
|
360 |
dc8979ba
|
Leszek Koltunski
|
Static4D cameraPoint = new Static4D(0, 0, mCameraDistance, 0);
|
361 |
|
|
Static4D rotatedCamera= rotateVectorByInvertedQuat(cameraPoint, mQuatAccumulated);
|
362 |
e4c0057e
|
Leszek Koltunski
|
|
363 |
8fbe9426
|
Leszek Koltunski
|
mCamera[0] = rotatedCamera.get1();
|
364 |
|
|
mCamera[1] = rotatedCamera.get2();
|
365 |
|
|
mCamera[2] = rotatedCamera.get3();
|
366 |
dc8979ba
|
Leszek Koltunski
|
}
|
367 |
e4c0057e
|
Leszek Koltunski
|
|
368 |
dc8979ba
|
Leszek Koltunski
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
369 |
|
|
// given precomputed mCam and mPoi, respectively camera and touch point positions in ScreenSpace,
|
370 |
|
|
// cast this touch point onto the 'face' and write the cast coords to 'output'.
|
371 |
|
|
// Center of the 'face' = (0,0)
|
372 |
e4c0057e
|
Leszek Koltunski
|
|
373 |
dc8979ba
|
Leszek Koltunski
|
private void castTouchPointOntoFace(int face, float cubeHalfSize, float[] output)
|
374 |
|
|
{
|
375 |
|
|
int sign = retFaceSign(face);
|
376 |
|
|
int zAxis= retFaceZaxis(face);
|
377 |
8fbe9426
|
Leszek Koltunski
|
float diff = mPoint[zAxis]-mCamera[zAxis];
|
378 |
e4c0057e
|
Leszek Koltunski
|
|
379 |
8fbe9426
|
Leszek Koltunski
|
float ratio = diff!=0.0f ? (sign*cubeHalfSize-mCamera[zAxis])/diff : 0.0f;
|
380 |
e4c0057e
|
Leszek Koltunski
|
|
381 |
8fbe9426
|
Leszek Koltunski
|
output[0] = (mPoint[0]-mCamera[0])*ratio + mCamera[0];
|
382 |
|
|
output[1] = (mPoint[1]-mCamera[1])*ratio + mCamera[1];
|
383 |
|
|
output[2] = (mPoint[2]-mCamera[2])*ratio + mCamera[2];
|
384 |
e4c0057e
|
Leszek Koltunski
|
}
|
385 |
840d83be
|
Leszek Koltunski
|
|
386 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
387 |
|
|
|
388 |
dc8979ba
|
Leszek Koltunski
|
private int retFaceSign(int face)
|
389 |
840d83be
|
Leszek Koltunski
|
{
|
390 |
dc8979ba
|
Leszek Koltunski
|
return (face==FRONT || face==RIGHT || face==TOP) ? 1:-1;
|
391 |
|
|
}
|
392 |
|
|
|
393 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
394 |
840d83be
|
Leszek Koltunski
|
|
395 |
dc8979ba
|
Leszek Koltunski
|
private int retFaceRotationSign(int face)
|
396 |
|
|
{
|
397 |
|
|
return (face==BACK || face==RIGHT || face==TOP) ? 1:-1;
|
398 |
c6223217
|
Leszek Koltunski
|
}
|
399 |
840d83be
|
Leszek Koltunski
|
|
400 |
c6223217
|
Leszek Koltunski
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
401 |
|
|
|
402 |
dc8979ba
|
Leszek Koltunski
|
private int retFaceXaxis(int face)
|
403 |
c6223217
|
Leszek Koltunski
|
{
|
404 |
dc8979ba
|
Leszek Koltunski
|
switch(face)
|
405 |
|
|
{
|
406 |
|
|
case FRONT :
|
407 |
|
|
case BACK : return VECTX;
|
408 |
|
|
case LEFT :
|
409 |
|
|
case RIGHT : return VECTZ;
|
410 |
|
|
case TOP :
|
411 |
|
|
case BOTTOM: return VECTX;
|
412 |
|
|
}
|
413 |
840d83be
|
Leszek Koltunski
|
|
414 |
dc8979ba
|
Leszek Koltunski
|
return -1;
|
415 |
c6223217
|
Leszek Koltunski
|
}
|
416 |
840d83be
|
Leszek Koltunski
|
|
417 |
c6223217
|
Leszek Koltunski
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
418 |
|
|
|
419 |
dc8979ba
|
Leszek Koltunski
|
private int retFaceYaxis(int face)
|
420 |
c6223217
|
Leszek Koltunski
|
{
|
421 |
|
|
switch(face)
|
422 |
|
|
{
|
423 |
dc8979ba
|
Leszek Koltunski
|
case FRONT :
|
424 |
|
|
case BACK : return VECTY;
|
425 |
|
|
case LEFT :
|
426 |
|
|
case RIGHT : return VECTY;
|
427 |
|
|
case TOP :
|
428 |
|
|
case BOTTOM: return VECTZ;
|
429 |
c6223217
|
Leszek Koltunski
|
}
|
430 |
|
|
|
431 |
dc8979ba
|
Leszek Koltunski
|
return -1;
|
432 |
c6223217
|
Leszek Koltunski
|
}
|
433 |
|
|
|
434 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
435 |
|
|
|
436 |
dc8979ba
|
Leszek Koltunski
|
private int retFaceZaxis(int face)
|
437 |
c6223217
|
Leszek Koltunski
|
{
|
438 |
|
|
switch(face)
|
439 |
|
|
{
|
440 |
|
|
case FRONT :
|
441 |
dc8979ba
|
Leszek Koltunski
|
case BACK : return VECTZ;
|
442 |
c6223217
|
Leszek Koltunski
|
case LEFT :
|
443 |
dc8979ba
|
Leszek Koltunski
|
case RIGHT : return VECTX;
|
444 |
c6223217
|
Leszek Koltunski
|
case TOP :
|
445 |
dc8979ba
|
Leszek Koltunski
|
case BOTTOM: return VECTY;
|
446 |
c6223217
|
Leszek Koltunski
|
}
|
447 |
|
|
|
448 |
dc8979ba
|
Leszek Koltunski
|
return -1;
|
449 |
840d83be
|
Leszek Koltunski
|
}
|
450 |
5b4a2d76
|
Leszek Koltunski
|
}
|