+++ /dev/null
-/****************************************************************************************/\r
-/* PATH.H */\r
-/* */\r
-/* Author: Mike Sandige */\r
-/* Description: Time-indexed keyframe creation, maintenance, and sampling. */\r
-/* */\r
-/* The contents of this file are subject to the Genesis3D Public License */\r
-/* Version 1.01 (the "License"); you may not use this file except in */\r
-/* compliance with the License. You may obtain a copy of the License at */\r
-/* http://www.genesis3d.com */\r
-/* */\r
-/* Software distributed under the License is distributed on an "AS IS" */\r
-/* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See */\r
-/* the License for the specific language governing rights and limitations */\r
-/* under the License. */\r
-/* */\r
-/* The Original Code is Genesis3D, released March 25, 1999. */\r
-/* Genesis3D Version 1.1 released November 15, 1999 */\r
-/* Copyright (C) 1999 WildTangent, Inc. All Rights Reserved */\r
-/* */\r
-/****************************************************************************************/\r
-#ifndef GE_PATH_H\r
-#define GE_PATH_H\r
-\r
-#include "basetype.h"\r
-#include "xform3d.h"\r
-#include "quatern.h"\r
-#include "vfile.h"\r
-\r
-#ifdef __cplusplus\r
- extern "C" {\r
-#endif\r
-\r
-\r
-// GENESIS_PUBLIC_APIS\r
-typedef struct _gePath gePath;\r
-\r
-#define GE_PATH_ROTATION_CHANNEL 1\r
-#define GE_PATH_TRANSLATION_CHANNEL 2\r
-\r
-#define GE_PATH_ALL_CHANNELS (GE_PATH_ROTATION_CHANNEL | GE_PATH_TRANSLATION_CHANNEL)\r
-\r
-#ifndef GE_PATH_ENUMS\r
- #define GE_PATH_ENUMS\r
- typedef enum \r
- {\r
- GE_PATH_INTERPOLATE_LINEAR = 0, // linear blend for translation or rotation channel\r
- GE_PATH_INTERPOLATE_HERMITE, // hermite cubic spline for translation channel\r
- GE_PATH_INTERPOLATE_SLERP, // spherical-linear blend for rotation channel\r
- GE_PATH_INTERPOLATE_SQUAD, // higher order blend for rotation channel 'G1' continuity\r
- //GE_PATH_INTEROPLATE_TRIPOD, // not supported yet.\r
- GE_PATH_INTERPOLATE_HERMITE_ZERO_DERIV = 7 // hermite cubic with zero derivative at keyframes ('easing' curve)\r
- }gePath_Interpolator;\r
-#endif\r
-\r
-GENESISAPI void GENESISCC gePath_CreateRef( gePath *P );\r
-\r
-GENESISAPI gePath *GENESISCC gePath_Create(\r
- gePath_Interpolator TranslationInterpolation, // type of interpolation for translation channel\r
- gePath_Interpolator RotationInterpolation, // type of interpolation for rotation channel\r
- geBoolean Looped); // True if end of path is connected to head\r
- // creates new gePath\r
- // A looping path should have the same first & last point. The path\r
- // generator will choose arbitrarily between these points for a \r
- // sample exactly at the end of the loop.\r
-\r
-GENESISAPI gePath *GENESISCC gePath_CreateCopy( const gePath *P );\r
- \r
-GENESISAPI void GENESISCC gePath_Destroy(gePath **PP); \r
- // destroys path *PP\r
-\r
-//------------------ time based keyframe operations\r
-GENESISAPI geBoolean GENESISCC gePath_InsertKeyframe(\r
- gePath *P, \r
- int ChannelMask, \r
- geFloat Time, \r
- const geXForm3d *Matrix); \r
- // inserts a keyframe at a specific time.\r
- \r
-GENESISAPI geBoolean GENESISCC gePath_DeleteKeyframe(\r
- gePath *P,\r
- int Index,\r
- int ChannelMask); \r
- // deletes the nth keyframe\r
-\r
-GENESISAPI geBoolean GENESISCC gePath_GetTimeExtents(\r
- const gePath *P,\r
- geFloat *StartTime, \r
- geFloat *EndTime);\r
- // gets the time for the first and last keys in the path (ignoring looping)\r
- // if there are no keys, return GE_FALSE and times are not set.\r
- // returns GE_TRUE if there are keys.\r
-\r
-//----------------- index based keyframe operations\r
-GENESISAPI void GENESISCC gePath_GetKeyframe(\r
- const gePath *P, \r
- int Index, // gets keyframe[index]\r
- int Channel, // for this channel\r
- geFloat *Time, // returns the time of the keyframe\r
- geXForm3d *Matrix); // returns the matrix of the keyframe\r
- // retrieves keyframe[index], and it's time\r
-\r
-GENESISAPI int GENESISCC gePath_GetKeyframeCount(const gePath *P,int Channel);\r
- // retrieves count of keyframes for a specific channel\r
-\r
-GENESISAPI int GENESISCC gePath_GetKeyframeIndex(const gePath *P, int Channel, geFloat Time);\r
- // retrieves the index of the keyframe at a specific time for a specific channel\r
-\r
-//----------------- sampling a path (time based)\r
-GENESISAPI void GENESISCC gePath_Sample(const gePath *P, geFloat Time,geXForm3d *Matrix);\r
- // returns a transform matrix sampled at 'Time'.\r
- // p is not const because information is cached in p for next sample\r
-\r
-// GENESIS_PRIVATE_APIS\r
-void GENESISCC gePath_SampleChannels(\r
- const gePath *P, \r
- geFloat Time, \r
- geQuaternion *Rotation, \r
- geVec3d *Translation);\r
- // returns a rotation and a translation for the path at 'Time'\r
- // p is not const because information is cached in p for next sample\r
-\r
-GENESISAPI geBoolean GENESISCC gePath_OffsetTimes(gePath *P, \r
- int StartingIndex, int ChannelMask, geFloat TimeOffset );\r
- // slides all samples in path starting with StartingIndex down by TimeOffset\r
-\r
-GENESISAPI geBoolean GENESISCC gePath_ModifyKeyframe(\r
- gePath *P,\r
- int Index,\r
- int ChannelMask,\r
- const geXForm3d *Matrix);\r
- \r
-\r
-// GENESIS_PUBLIC_APIS\r
-\r
-//------------------ saving/loading a path\r
-GENESISAPI gePath* GENESISCC gePath_CreateFromFile(geVFile *F);\r
- // loads a file (binary or ascii)\r
-\r
-GENESISAPI geBoolean GENESISCC gePath_WriteToFile(const gePath *P, geVFile *F);\r
- // dumps formatted ascii to the file. \r
-\r
-GENESISAPI geBoolean GENESISCC gePath_WriteToBinaryFile(const gePath *P, geVFile *F);\r
- // dumps a minimal binary image for fastest reading\r
-\r
-\r
-\r
-#ifdef __cplusplus\r
- }\r
-#endif\r
-\r
-\r
-#endif\r
projects / genesis3d.git / blobdiff