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#include "common.h"
#include "ColModel.h"
#include "Game.h"
#include "MemoryHeap.h"
CColModel::CColModel(void)
{
numSpheres = 0;
spheres = nil;
numLines = 0;
lines = nil;
numBoxes = 0;
boxes = nil;
numTriangles = 0;
vertices = nil;
triangles = nil;
trianglePlanes = nil;
level = CGame::currLevel;
ownsCollisionVolumes = true;
}
CColModel::~CColModel(void)
{
RemoveCollisionVolumes();
RemoveTrianglePlanes();
}
void
CColModel::RemoveCollisionVolumes(void)
{
if(ownsCollisionVolumes){
RwFree(spheres);
RwFree(lines);
RwFree(boxes);
RwFree(vertices);
RwFree(triangles);
}
numSpheres = 0;
numLines = 0;
numBoxes = 0;
numTriangles = 0;
spheres = nil;
lines = nil;
boxes = nil;
vertices = nil;
triangles = nil;
}
void
CColModel::CalculateTrianglePlanes(void)
{
PUSH_MEMID(MEMID_COLLISION);
// HACK: allocate space for one more element to stuff the link pointer into
trianglePlanes = (CColTrianglePlane*)RwMalloc(sizeof(CColTrianglePlane) * (numTriangles+1));
REGISTER_MEMPTR(&trianglePlanes);
for(int i = 0; i < numTriangles; i++)
trianglePlanes[i].Set(vertices, triangles[i]);
POP_MEMID();
}
void
CColModel::RemoveTrianglePlanes(void)
{
RwFree(trianglePlanes);
trianglePlanes = nil;
}
void
CColModel::SetLinkPtr(CLink<CColModel*> *lptr)
{
assert(trianglePlanes);
*(CLink<CColModel*>**)ALIGNPTR(&trianglePlanes[numTriangles]) = lptr;
}
CLink<CColModel*>*
CColModel::GetLinkPtr(void)
{
assert(trianglePlanes);
return *(CLink<CColModel*>**)ALIGNPTR(&trianglePlanes[numTriangles]);
}
void
CColModel::GetTrianglePoint(CVector &v, int i) const
{
v = vertices[i].Get();
}
CColModel&
CColModel::operator=(const CColModel &other)
{
int i;
int numVerts;
boundingSphere = other.boundingSphere;
boundingBox = other.boundingBox;
// copy spheres
if(other.numSpheres){
if(numSpheres != other.numSpheres){
numSpheres = other.numSpheres;
if(spheres)
RwFree(spheres);
spheres = (CColSphere*)RwMalloc(numSpheres*sizeof(CColSphere));
}
for(i = 0; i < numSpheres; i++)
spheres[i] = other.spheres[i];
}else{
numSpheres = 0;
if(spheres)
RwFree(spheres);
spheres = nil;
}
// copy lines
if(other.numLines){
if(numLines != other.numLines){
numLines = other.numLines;
if(lines)
RwFree(lines);
lines = (CColLine*)RwMalloc(numLines*sizeof(CColLine));
}
for(i = 0; i < numLines; i++)
lines[i] = other.lines[i];
}else{
numLines = 0;
if(lines)
RwFree(lines);
lines = nil;
}
// copy boxes
if(other.numBoxes){
if(numBoxes != other.numBoxes){
numBoxes = other.numBoxes;
if(boxes)
RwFree(boxes);
boxes = (CColBox*)RwMalloc(numBoxes*sizeof(CColBox));
}
for(i = 0; i < numBoxes; i++)
boxes[i] = other.boxes[i];
}else{
numBoxes = 0;
if(boxes)
RwFree(boxes);
boxes = nil;
}
// copy mesh
if(other.numTriangles){
// copy vertices
numVerts = 0;
for(i = 0; i < other.numTriangles; i++){
if(other.triangles[i].a > numVerts)
numVerts = other.triangles[i].a;
if(other.triangles[i].b > numVerts)
numVerts = other.triangles[i].b;
if(other.triangles[i].c > numVerts)
numVerts = other.triangles[i].c;
}
numVerts++;
if(vertices)
RwFree(vertices);
if(numVerts){
vertices = (CompressedVector*)RwMalloc(numVerts*sizeof(CompressedVector));
for(i = 0; i < numVerts; i++)
vertices[i] = other.vertices[i];
}
// copy triangles
if(numTriangles != other.numTriangles){
numTriangles = other.numTriangles;
if(triangles)
RwFree(triangles);
triangles = (CColTriangle*)RwMalloc(numTriangles*sizeof(CColTriangle));
}
for(i = 0; i < numTriangles; i++)
triangles[i] = other.triangles[i];
}else{
numTriangles = 0;
if(triangles)
RwFree(triangles);
triangles = nil;
if(vertices)
RwFree(vertices);
vertices = nil;
}
return *this;
}
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