f98959f92a
Hopefully this pickVoxel function will fulfil most most need with raycasting which aren't covered by the existing raycast functions. It's essentially a wrapper around the current functions, using a custom functor to store the position of a solid voxel as well as the previous empty voxel. It doesn't require the user to provide a functor of their own, just the value that they've assigned to empty voxels. As well as the function itself, we also have a unit test as well as it being built in the bindings.
68 lines
2.4 KiB
C++
68 lines
2.4 KiB
C++
/*******************************************************************************
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Copyright (c) 2013 Matt Williams
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source
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distribution.
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*******************************************************************************/
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#include "TestPicking.h"
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#include "PolyVoxCore/Picking.h"
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#include "PolyVoxCore/SimpleVolume.h"
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#include <QtTest>
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using namespace PolyVox;
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void TestPicking::testExecute()
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{
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const int32_t uVolumeSideLength = 32;
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SimpleVolume<int8_t> volData(Region(Vector3DInt32(0,0,0), Vector3DInt32(uVolumeSideLength-1, uVolumeSideLength-1, uVolumeSideLength-1)));
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for (int32_t z = 0; z < uVolumeSideLength; z++)
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{
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for (int32_t y = 0; y < uVolumeSideLength; y++)
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{
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for (int32_t x = 0; x < uVolumeSideLength; x++)
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{
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if((x > uVolumeSideLength/2)) //x > 16 is filled
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{
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volData.setVoxelAt(x, y, z, 100);
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}
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else
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{
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volData.setVoxelAt(x, y, z, 0);
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}
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}
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}
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}
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PickResult resultHit = pickVoxel(&volData, Vector3DFloat(0, uVolumeSideLength / 2, uVolumeSideLength / 2), Vector3DFloat(uVolumeSideLength, 0, 0));
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QCOMPARE(resultHit.didHit, true);
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QCOMPARE(resultHit.hitVoxel, Vector3DInt32((uVolumeSideLength / 2) + 1, uVolumeSideLength / 2, uVolumeSideLength / 2));
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QCOMPARE(resultHit.previousVoxel, Vector3DInt32((uVolumeSideLength / 2), uVolumeSideLength / 2, uVolumeSideLength / 2));
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PickResult resultMiss = pickVoxel(&volData, Vector3DFloat(0, uVolumeSideLength / 2, uVolumeSideLength / 2), Vector3DFloat(uVolumeSideLength / 2, uVolumeSideLength, uVolumeSideLength));
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QCOMPARE(resultMiss.didHit, false);
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}
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QTEST_MAIN(TestPicking)
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