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-rw-r--r--src/collision/ColModel.cpp190
1 files changed, 190 insertions, 0 deletions
diff --git a/src/collision/ColModel.cpp b/src/collision/ColModel.cpp
new file mode 100644
index 00000000..fb90e7dd
--- /dev/null
+++ b/src/collision/ColModel.cpp
@@ -0,0 +1,190 @@
+#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;
+}