diff options
Diffstat (limited to '')
| -rw-r--r-- | src/collision/ColModel.cpp | 190 |
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; +} |