mirror of
https://github.com/minetest/irrlicht.git
synced 2024-12-29 09:27:31 +01:00
90 lines
2.8 KiB
C++
90 lines
2.8 KiB
C++
|
// Copyright (C) 2002-2012 Nikolaus Gebhardt
|
||
|
|
// This file is part of the "Irrlicht Engine".
|
||
|
|
// For conditions of distribution and use, see copyright notice in irrlicht.h
|
||
|
|
|
||
|
|
#include "CTriangleBBSelector.h"
|
||
|
|
#include "ISceneNode.h"
|
||
|
|
|
||
|
|
namespace irr
|
||
|
|
{
|
||
|
|
namespace scene
|
||
|
|
{
|
||
|
|
|
||
|
|
//! constructor
|
||
|
|
CTriangleBBSelector::CTriangleBBSelector(ISceneNode* node)
|
||
|
|
: CTriangleSelector(node)
|
||
|
|
{
|
||
|
|
#ifdef _DEBUG
|
||
|
|
setDebugName("CTriangleBBSelector");
|
||
|
|
#endif
|
||
|
|
|
||
|
|
Triangles.set_used(12); // a box has 12 triangles.
|
||
|
|
}
|
||
|
|
|
||
|
|
//! Gets all triangles.
|
||
|
|
void CTriangleBBSelector::getTriangles(core::triangle3df* triangles,
|
||
|
|
s32 arraySize, s32& outTriangleCount,
|
||
|
|
const core::matrix4* transform, bool useNodeTransform,
|
||
|
|
irr::core::array<SCollisionTriangleRange>* outTriangleInfo) const
|
||
|
|
{
|
||
|
|
fillTriangles();
|
||
|
|
|
||
|
|
// call parent
|
||
|
|
CTriangleSelector::getTriangles(triangles, arraySize, outTriangleCount, transform, useNodeTransform, outTriangleInfo);
|
||
|
|
}
|
||
|
|
|
||
|
|
void CTriangleBBSelector::getTriangles(core::triangle3df* triangles,
|
||
|
|
s32 arraySize, s32& outTriangleCount,
|
||
|
|
const core::aabbox3d<f32>& box,
|
||
|
|
const core::matrix4* transform, bool useNodeTransform,
|
||
|
|
irr::core::array<SCollisionTriangleRange>* outTriangleInfo) const
|
||
|
|
{
|
||
|
|
fillTriangles();
|
||
|
|
return CTriangleSelector::getTriangles(triangles, arraySize, outTriangleCount, box, transform, useNodeTransform, outTriangleInfo);
|
||
|
|
}
|
||
|
|
|
||
|
|
void CTriangleBBSelector::getTriangles(core::triangle3df* triangles,
|
||
|
|
s32 arraySize, s32& outTriangleCount,
|
||
|
|
const core::line3d<f32>& line,
|
||
|
|
const core::matrix4* transform, bool useNodeTransform,
|
||
|
|
irr::core::array<SCollisionTriangleRange>* outTriangleInfo) const
|
||
|
|
{
|
||
|
|
fillTriangles();
|
||
|
|
return CTriangleSelector::getTriangles(triangles, arraySize, outTriangleCount, line, transform, useNodeTransform, outTriangleInfo);
|
||
|
|
}
|
||
|
|
|
||
|
|
void CTriangleBBSelector::fillTriangles() const
|
||
|
|
{
|
||
|
|
if (SceneNode)
|
||
|
|
{
|
||
|
|
// construct triangles
|
||
|
|
const core::aabbox3d<f32>& box = SceneNode->getBoundingBox();
|
||
|
|
BoundingBox = box;
|
||
|
|
core::vector3df edges[8];
|
||
|
|
box.getEdges(edges);
|
||
|
|
|
||
|
|
// yeah, not really const... Triangles are mutable
|
||
|
|
Triangles[0].set( edges[3], edges[0], edges[2]);
|
||
|
|
Triangles[1].set( edges[3], edges[1], edges[0]);
|
||
|
|
|
||
|
|
Triangles[2].set( edges[3], edges[2], edges[7]);
|
||
|
|
Triangles[3].set( edges[7], edges[2], edges[6]);
|
||
|
|
|
||
|
|
Triangles[4].set( edges[7], edges[6], edges[4]);
|
||
|
|
Triangles[5].set( edges[5], edges[7], edges[4]);
|
||
|
|
|
||
|
|
Triangles[6].set( edges[5], edges[4], edges[0]);
|
||
|
|
Triangles[7].set( edges[5], edges[0], edges[1]);
|
||
|
|
|
||
|
|
Triangles[8].set( edges[1], edges[3], edges[7]);
|
||
|
|
Triangles[9].set( edges[1], edges[7], edges[5]);
|
||
|
|
|
||
|
|
Triangles[10].set(edges[0], edges[6], edges[2]);
|
||
|
|
Triangles[11].set(edges[0], edges[4], edges[6]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
} // end namespace scene
|
||
|
|
} // end namespace irr
|