mirror of
https://github.com/Relintai/pandemonium_engine.git
synced 2024-12-23 04:16:50 +01:00
168 lines
5.9 KiB
C++
168 lines
5.9 KiB
C++
|
/*
|
||
|
Bullet Continuous Collision Detection and Physics Library
|
||
|
Copyright (c) 2003-2008 Erwin Coumans https://bulletphysics.org
|
||
|
|
||
|
This software is provided 'as-is', without any express or implied warranty.
|
||
|
In no event will the authors be held liable for any damages arising from the use of this software.
|
||
|
Permission is granted to anyone to use this software for any purpose,
|
||
|
including commercial applications, and to alter it and redistribute it freely,
|
||
|
subject to the following restrictions:
|
||
|
|
||
|
1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
|
||
|
2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
|
||
|
3. This notice may not be removed or altered from any source distribution.
|
||
|
*/
|
||
|
|
||
|
#ifndef BT_SOFT_BODY_HELPERS_H
|
||
|
#define BT_SOFT_BODY_HELPERS_H
|
||
|
|
||
|
#include "btSoftBody.h"
|
||
|
#include <fstream>
|
||
|
#include <string>
|
||
|
//
|
||
|
// Helpers
|
||
|
//
|
||
|
|
||
|
/* fDrawFlags */
|
||
|
struct fDrawFlags
|
||
|
{
|
||
|
enum _
|
||
|
{
|
||
|
Nodes = 0x0001,
|
||
|
Links = 0x0002,
|
||
|
Faces = 0x0004,
|
||
|
Tetras = 0x0008,
|
||
|
Normals = 0x0010,
|
||
|
Contacts = 0x0020,
|
||
|
Anchors = 0x0040,
|
||
|
Notes = 0x0080,
|
||
|
Clusters = 0x0100,
|
||
|
NodeTree = 0x0200,
|
||
|
FaceTree = 0x0400,
|
||
|
ClusterTree = 0x0800,
|
||
|
Joints = 0x1000,
|
||
|
/* presets */
|
||
|
Std = Links + Faces + Tetras + Anchors + Notes + Joints,
|
||
|
StdTetra = Std - Faces + Tetras
|
||
|
};
|
||
|
};
|
||
|
|
||
|
struct btSoftBodyHelpers
|
||
|
{
|
||
|
/* Draw body */
|
||
|
static void Draw(btSoftBody* psb,
|
||
|
btIDebugDraw* idraw,
|
||
|
int drawflags = fDrawFlags::Std);
|
||
|
/* Draw body infos */
|
||
|
static void DrawInfos(btSoftBody* psb,
|
||
|
btIDebugDraw* idraw,
|
||
|
bool masses,
|
||
|
bool areas,
|
||
|
bool stress);
|
||
|
/* Draw node tree */
|
||
|
static void DrawNodeTree(btSoftBody* psb,
|
||
|
btIDebugDraw* idraw,
|
||
|
int mindepth = 0,
|
||
|
int maxdepth = -1);
|
||
|
/* Draw face tree */
|
||
|
static void DrawFaceTree(btSoftBody* psb,
|
||
|
btIDebugDraw* idraw,
|
||
|
int mindepth = 0,
|
||
|
int maxdepth = -1);
|
||
|
/* Draw cluster tree */
|
||
|
static void DrawClusterTree(btSoftBody* psb,
|
||
|
btIDebugDraw* idraw,
|
||
|
int mindepth = 0,
|
||
|
int maxdepth = -1);
|
||
|
/* Draw rigid frame */
|
||
|
static void DrawFrame(btSoftBody* psb,
|
||
|
btIDebugDraw* idraw);
|
||
|
/* Create a rope */
|
||
|
static btSoftBody* CreateRope(btSoftBodyWorldInfo& worldInfo,
|
||
|
const btVector3& from,
|
||
|
const btVector3& to,
|
||
|
int res,
|
||
|
int fixeds);
|
||
|
/* Create a patch */
|
||
|
static btSoftBody* CreatePatch(btSoftBodyWorldInfo& worldInfo,
|
||
|
const btVector3& corner00,
|
||
|
const btVector3& corner10,
|
||
|
const btVector3& corner01,
|
||
|
const btVector3& corner11,
|
||
|
int resx,
|
||
|
int resy,
|
||
|
int fixeds,
|
||
|
bool gendiags,
|
||
|
btScalar perturbation = 0.);
|
||
|
/* Create a patch with UV Texture Coordinates */
|
||
|
static btSoftBody* CreatePatchUV(btSoftBodyWorldInfo& worldInfo,
|
||
|
const btVector3& corner00,
|
||
|
const btVector3& corner10,
|
||
|
const btVector3& corner01,
|
||
|
const btVector3& corner11,
|
||
|
int resx,
|
||
|
int resy,
|
||
|
int fixeds,
|
||
|
bool gendiags,
|
||
|
float* tex_coords = 0);
|
||
|
static float CalculateUV(int resx, int resy, int ix, int iy, int id);
|
||
|
/* Create an ellipsoid */
|
||
|
static btSoftBody* CreateEllipsoid(btSoftBodyWorldInfo& worldInfo,
|
||
|
const btVector3& center,
|
||
|
const btVector3& radius,
|
||
|
int res);
|
||
|
/* Create from trimesh */
|
||
|
static btSoftBody* CreateFromTriMesh(btSoftBodyWorldInfo& worldInfo,
|
||
|
const btScalar* vertices,
|
||
|
const int* triangles,
|
||
|
int ntriangles,
|
||
|
bool randomizeConstraints = true);
|
||
|
/* Create from convex-hull */
|
||
|
static btSoftBody* CreateFromConvexHull(btSoftBodyWorldInfo& worldInfo,
|
||
|
const btVector3* vertices,
|
||
|
int nvertices,
|
||
|
bool randomizeConstraints = true);
|
||
|
|
||
|
/* Export TetGen compatible .smesh file */
|
||
|
// static void ExportAsSMeshFile( btSoftBody* psb,
|
||
|
// const char* filename);
|
||
|
/* Create from TetGen .ele, .face, .node files */
|
||
|
// static btSoftBody* CreateFromTetGenFile( btSoftBodyWorldInfo& worldInfo,
|
||
|
// const char* ele,
|
||
|
// const char* face,
|
||
|
// const char* node,
|
||
|
// bool bfacelinks,
|
||
|
// bool btetralinks,
|
||
|
// bool bfacesfromtetras);
|
||
|
/* Create from TetGen .ele, .face, .node data */
|
||
|
static btSoftBody* CreateFromTetGenData(btSoftBodyWorldInfo& worldInfo,
|
||
|
const char* ele,
|
||
|
const char* face,
|
||
|
const char* node,
|
||
|
bool bfacelinks,
|
||
|
bool btetralinks,
|
||
|
bool bfacesfromtetras);
|
||
|
static btSoftBody* CreateFromVtkFile(btSoftBodyWorldInfo& worldInfo, const char* vtk_file);
|
||
|
|
||
|
static void writeObj(const char* file, const btSoftBody* psb);
|
||
|
|
||
|
static void getBarycentricWeights(const btVector3& a, const btVector3& b, const btVector3& c, const btVector3& d, const btVector3& p, btVector4& bary);
|
||
|
|
||
|
static void getBarycentricWeights(const btVector3& a, const btVector3& b, const btVector3& c, const btVector3& p, btVector4& bary);
|
||
|
|
||
|
static void interpolateBarycentricWeights(btSoftBody* psb);
|
||
|
|
||
|
static void extrapolateBarycentricWeights(btSoftBody* psb);
|
||
|
|
||
|
static void generateBoundaryFaces(btSoftBody* psb);
|
||
|
|
||
|
static void duplicateFaces(const char* filename, const btSoftBody* psb);
|
||
|
/// Sort the list of links to move link calculations that are dependent upon earlier
|
||
|
/// ones as far as possible away from the calculation of those values
|
||
|
/// This tends to make adjacent loop iterations not dependent upon one another,
|
||
|
/// so out-of-order processors can execute instructions from multiple iterations at once
|
||
|
static void ReoptimizeLinkOrder(btSoftBody* psb);
|
||
|
};
|
||
|
|
||
|
#endif //BT_SOFT_BODY_HELPERS_H
|