Torque3D/Engine/source/collision/abstractPolyList.cpp
2012-09-19 11:15:01 -04:00

115 lines
3.3 KiB
C++

//-----------------------------------------------------------------------------
// Copyright (c) 2012 GarageGames, LLC
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//-----------------------------------------------------------------------------
#include "collision/abstractPolyList.h"
//----------------------------------------------------------------------------
AbstractPolyList::~AbstractPolyList()
{
mInterestNormalRegistered = false;
}
static U32 PolyFace[6][4] = {
{ 3, 2, 1, 0 },
{ 7, 4, 5, 6 },
{ 0, 5, 4, 3 },
{ 6, 5, 0, 1 },
{ 7, 6, 1, 2 },
{ 4, 7, 2, 3 },
};
void AbstractPolyList::addBox(const Box3F &box, BaseMatInstance* material)
{
Point3F pos = box.minExtents;
F32 dx = box.maxExtents.x - box.minExtents.x;
F32 dy = box.maxExtents.y - box.minExtents.y;
F32 dz = box.maxExtents.z - box.minExtents.z;
U32 base = addPoint(pos);
pos.y += dy; addPoint(pos);
pos.x += dx; addPoint(pos);
pos.y -= dy; addPoint(pos);
pos.z += dz; addPoint(pos);
pos.x -= dx; addPoint(pos);
pos.y += dy; addPoint(pos);
pos.x += dx; addPoint(pos);
for (S32 i = 0; i < 6; i++) {
begin(material, i);
S32 v1 = base + PolyFace[i][0];
S32 v2 = base + PolyFace[i][1];
S32 v3 = base + PolyFace[i][2];
S32 v4 = base + PolyFace[i][3];
vertex(v1);
vertex(v2);
vertex(v3);
vertex(v4);
plane(v1, v2, v3);
end();
}
}
bool AbstractPolyList::getMapping(MatrixF *, Box3F *)
{
// return list transform and bounds in list space...optional
return false;
}
bool AbstractPolyList::isInterestedInPlane(const PlaneF& plane)
{
if (mInterestNormalRegistered == false) {
return true;
}
else {
PlaneF xformed;
mPlaneTransformer.transform(plane, xformed);
if (mDot(xformed, mInterestNormal) >= 0.0f)
return false;
else
return true;
}
}
bool AbstractPolyList::isInterestedInPlane(const U32 index)
{
if (mInterestNormalRegistered == false) {
return true;
}
else {
const PlaneF& rPlane = getIndexedPlane(index);
if (mDot(rPlane, mInterestNormal) >= 0.0f)
return false;
else
return true;
}
}
void AbstractPolyList::setInterestNormal(const Point3F& normal)
{
mInterestNormalRegistered = true;
mInterestNormal = normal;
}