Revision 37a25788
Added by Leszek Koltunski about 4 years ago
| src/main/java/org/distorted/object/RubikCube.java | ||
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new Static3D(0,0,1) |
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}; |
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static final int[] FACE_COLORS = new int[] |
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private static final int[] FACE_COLORS = new int[]
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{
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0xffffff00, 0xffffffff, // AXIS[0]right (right-YELLOW) AXIS[0]left (left -WHITE) |
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0xff0000ff, 0xff00ff00, // AXIS[1]right (top -BLUE ) AXIS[1]left (bottom-GREEN) |
| src/main/java/org/distorted/object/RubikCubeMovement.java | ||
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{
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RubikCubeMovement() |
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{
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super(3,2);
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super(RubikCube.AXIS,2,0.5f);
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} |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
| ... | ... | |
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return (y>x) ? (y>=-x) : (y< -x); |
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} |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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boolean faceIsVisible(int axis, int lr) |
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{
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return (2*lr-1)*mCamera[axis] > 0.5f; |
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} |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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// given precomputed mCamera and mPoint, respectively camera and touch point positions in ScreenSpace, |
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// cast this touch point onto the surface defined by the 'face' and write the cast coords to 'output'. |
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// Center of the 'face' = (0,0), third coord always +- cubeHalfSize. |
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void castTouchPointOntoFace(int axis, int lr, float[] output) |
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{
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float diff = mPoint[axis]-mCamera[axis]; |
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float ratio= diff!=0.0f ? ((lr-0.5f)-mCamera[axis])/diff : 0.0f; |
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output[0] = (mPoint[0]-mCamera[0])*ratio + mCamera[0]; |
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output[1] = (mPoint[1]-mCamera[1])*ratio + mCamera[1]; |
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output[2] = (mPoint[2]-mCamera[2])*ratio + mCamera[2]; |
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} |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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void fillPossibleRotations(int axis, int[] output) |
| src/main/java/org/distorted/object/RubikObjectMovement.java | ||
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package org.distorted.object; |
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import org.distorted.library.type.Static2D; |
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import org.distorted.library.type.Static3D; |
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import org.distorted.library.type.Static4D; |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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public abstract class RubikObjectMovement |
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{
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float[] mPoint, mCamera, mTouch;
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float[] mTouch; |
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int mRotationVect, mLastTouchedAxis; |
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private float[] mDiff; |
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private float[] mPoint, mCamera, mDiff;
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private int mLastTouchedLR; |
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private int mNumAxis, mNumFacesPerAxis; |
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private int[] mPossible; |
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private float mDistanceCenterFace; |
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private Static3D[] mAxis; |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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abstract boolean faceIsVisible(int axis, int lr); |
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abstract void castTouchPointOntoFace(int axis, int lr, float[] output); |
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abstract boolean isInsideFace(float[] point); |
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abstract void fillPossibleRotations(int axis, int[] output); |
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abstract float fillUpRotationVectAndOffset(float[] vect, int[] possible); |
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abstract float returnAngle(float[] vect, int[] possible); |
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abstract void fillPossibleRotations(int axis, int[] output); |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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RubikObjectMovement(int numAxis, int numFacesPerAxis)
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RubikObjectMovement(Static3D[] axis, int numFacesPerAxis, float distance)
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{
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mPoint = new float[3]; |
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mCamera= new float[3]; |
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mDiff = new float[3]; |
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mTouch = new float[3]; |
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mNumAxis = numAxis; |
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mAxis = axis; |
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mNumAxis = mAxis.length; |
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mNumFacesPerAxis = numFacesPerAxis; |
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mDistanceCenterFace = distance; |
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mPossible = new int[mNumAxis-1]; |
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} |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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private boolean faceIsVisible(Static3D axis, int lr) |
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{
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float castCameraOnAxis = mCamera[0]*axis.get0() + mCamera[1]*axis.get1() + mCamera[2]*axis.get2(); |
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return (2*lr-1)*castCameraOnAxis > mDistanceCenterFace; |
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} |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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// given precomputed mCamera and mPoint, respectively camera and touch point positions in ScreenSpace, |
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// compute point 'output[]' which: |
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// 1) lies on a face of the Object, i.e. surface defined by (axis, distance from (0,0,0)) [and this |
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// distance is +-mDistanceCenterFace, depending if it is the face on the left or the right end of |
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// the axis] (lr=0 or 1, so (2lr-1)*mDistanceCenterFace) |
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// 2) is co-linear with mCamera and mPoint |
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// |
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// output = camera + alpha*(point-camera), where alpha = [dist-axis*camera] / [axis*(point-camera)] |
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private void castTouchPointOntoFace(Static3D axis, int lr, float[] output) |
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{
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float d0 = mPoint[0]-mCamera[0]; |
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float d1 = mPoint[1]-mCamera[1]; |
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float d2 = mPoint[2]-mCamera[2]; |
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float a0 = axis.get0(); |
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float a1 = axis.get1(); |
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float a2 = axis.get2(); |
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float denom = a0*d0 + a1*d1 + a2*d2; |
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if( denom != 0.0f ) |
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{
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float axisCam = a0*mCamera[0] + a1*mCamera[1] + a2*mCamera[2]; |
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float distance = (2*lr-1)*mDistanceCenterFace; |
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float alpha = (distance-axisCam)/denom; |
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output[0] = mCamera[0] + d0*alpha; |
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output[1] = mCamera[1] + d1*alpha; |
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output[2] = mCamera[2] + d2*alpha; |
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} |
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} |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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// PUBLIC API |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
| ... | ... | |
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{
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for( mLastTouchedLR=0; mLastTouchedLR<mNumFacesPerAxis; mLastTouchedLR++) |
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{
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if( faceIsVisible(mLastTouchedAxis, mLastTouchedLR) )
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if( faceIsVisible(mAxis[mLastTouchedAxis], mLastTouchedLR) )
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{
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castTouchPointOntoFace(mLastTouchedAxis, mLastTouchedLR, mTouch);
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castTouchPointOntoFace(mAxis[mLastTouchedAxis], mLastTouchedLR, mTouch);
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if( isInsideFace(mTouch) ) |
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{
|
| ... | ... | |
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mPoint[1] = rotatedTouchPoint.get1()/RubikObject.OBJECT_SCREEN_RATIO; |
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mPoint[2] = rotatedTouchPoint.get2()/RubikObject.OBJECT_SCREEN_RATIO; |
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castTouchPointOntoFace(mLastTouchedAxis, mLastTouchedLR, mDiff);
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castTouchPointOntoFace(mAxis[mLastTouchedAxis], mLastTouchedLR, mDiff);
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mDiff[0] -= mTouch[0]; |
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mDiff[1] -= mTouch[1]; |
| src/main/java/org/distorted/object/RubikPyraminx.java | ||
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private static final float SQ2 = (float)Math.sqrt(2); |
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private static final float SQ3 = (float)Math.sqrt(3); |
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private static final Static3D[] AXIS = new Static3D[]
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static final Static3D[] AXIS = new Static3D[] |
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{
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new Static3D( 0, 1, 0 ), |
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new Static3D( 0, -1.0f/3, 2*SQ2/3 ), |
| src/main/java/org/distorted/object/RubikPyraminxMovement.java | ||
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RubikPyraminxMovement() |
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{
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super(4,1); |
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} |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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boolean faceIsVisible(int axis, int lr) |
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{
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return mCamera[axis] < -SQ2*SQ3/12; |
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} |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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// TODO |
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void castTouchPointOntoFace(int axis, int lr, float[] output) |
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{
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/* |
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float diff = mPoint[axis]-mCamera[axis]; |
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float ratio= diff!=0.0f ? ((lr-0.5f)-mCamera[axis])/diff : 0.0f; |
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|
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output[0] = (mPoint[0]-mCamera[0])*ratio + mCamera[0]; |
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output[1] = (mPoint[1]-mCamera[1])*ratio + mCamera[1]; |
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output[2] = (mPoint[2]-mCamera[2])*ratio + mCamera[2]; |
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*/ |
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super(RubikPyraminx.AXIS,1,SQ2*SQ3/12); |
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} |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
Also available in: Unified diff
Progress with object Movement.