ConvexObject::ConvexObject(std::vector<cpVect> points, float mass)
: PhysicalObject(points, mass)
{
cpRecenterPoly(points.size(), points.data());
shape = cpPolyShapeNew(body, points.size(), points.data(), cpv(0, 0));
shape->data = static_cast<PhysicalObject *>(this);
shapes.push_back(shape);
}
void PhysicsShape::recenterPoints(Vec2* points, int count, const Vec2& center)
{
cpVect* cpvs = new cpVect[count];
cpRecenterPoly(count, PhysicsHelper::points2cpvs(points, cpvs, count));
PhysicsHelper::cpvs2points(cpvs, points, count);
delete[] cpvs;
if (center != Vec2::ZERO)
{
for (int i = 0; i < count; ++i)
{
points[i] += center;
}
}
}
__declspec( dllexport ) void recenterpolygon( const void * _in, int in_size, void * _out, int out_sz )
{
int i;
int size = PEEKINT(INPUT_MEMBLOCK,0);
cpVect *vertices = (cpVect*)malloc(size*sizeof(cpVect));
for (i = 0;i != size;i++)
{
vertices[i] = PEEKVECT(INPUT_MEMBLOCK,4+i*8);
}
cpRecenterPoly(size,vertices);
for (i = 0;i != size;i++)
{
POKEVECT(OUTPUT_MEMBLOCK,i*8,vertices[i]);
}
free(vertices);
}
static VALUE
rb_cpRecenterPoly(VALUE self, VALUE arr) {
Check_Type(arr, T_ARRAY);
long numVerts = RARRAY_LEN(arr);
VALUE *ary_ptr = RARRAY_PTR(arr);
cpVect verts[numVerts];
for(long i = 0; i < numVerts; i++)
verts[i] = *VGET(ary_ptr[i]);
cpRecenterPoly(numVerts, verts);
for(long i = 0; i < numVerts; i++)
ary_ptr[i] = VNEW(verts[i]);
return arr;
}
Point* PhysicsShape::recenterPoints(Point* points, int count, Point center)
{
cpVect* cpvs = new cpVect[count];
cpRecenterPoly(count, PhysicsHelper::points2cpvs(points, cpvs, count));
PhysicsHelper::cpvs2points(cpvs, points, count);
delete[] cpvs;
if (center != Point::ZERO)
{
for (int i = 0; i < count; ++i)
{
points[i] += center;
}
}
return points;
}
