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author | dan miller | 2007-10-19 05:22:23 +0000 |
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committer | dan miller | 2007-10-19 05:22:23 +0000 |
commit | 1ec410ecd725f5a3ccb2d2fc16f48730d9d9fe43 (patch) | |
tree | 51bcae7a1b8381a6bf6fd8025a7de1e30fe0045d /libraries/ode-0.9/ode/src/collision_kernel.h | |
parent | one more for the gipper (diff) | |
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trying to fix my screwup, please hold on
Diffstat (limited to 'libraries/ode-0.9/ode/src/collision_kernel.h')
-rw-r--r-- | libraries/ode-0.9/ode/src/collision_kernel.h | 214 |
1 files changed, 0 insertions, 214 deletions
diff --git a/libraries/ode-0.9/ode/src/collision_kernel.h b/libraries/ode-0.9/ode/src/collision_kernel.h deleted file mode 100644 index d5a2bc4..0000000 --- a/libraries/ode-0.9/ode/src/collision_kernel.h +++ /dev/null | |||
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1 | /************************************************************************* | ||
2 | * * | ||
3 | * Open Dynamics Engine, Copyright (C) 2001-2003 Russell L. Smith. * | ||
4 | * All rights reserved. Email: russ@q12.org Web: www.q12.org * | ||
5 | * * | ||
6 | * This library is free software; you can redistribute it and/or * | ||
7 | * modify it under the terms of EITHER: * | ||
8 | * (1) The GNU Lesser General Public License as published by the Free * | ||
9 | * Software Foundation; either version 2.1 of the License, or (at * | ||
10 | * your option) any later version. The text of the GNU Lesser * | ||
11 | * General Public License is included with this library in the * | ||
12 | * file LICENSE.TXT. * | ||
13 | * (2) The BSD-style license that is included with this library in * | ||
14 | * the file LICENSE-BSD.TXT. * | ||
15 | * * | ||
16 | * This library is distributed in the hope that it will be useful, * | ||
17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * | ||
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the files * | ||
19 | * LICENSE.TXT and LICENSE-BSD.TXT for more details. * | ||
20 | * * | ||
21 | *************************************************************************/ | ||
22 | |||
23 | /* | ||
24 | |||
25 | internal data structures and functions for collision detection. | ||
26 | |||
27 | */ | ||
28 | |||
29 | #ifndef _ODE_COLLISION_KERNEL_H_ | ||
30 | #define _ODE_COLLISION_KERNEL_H_ | ||
31 | |||
32 | #include <ode/common.h> | ||
33 | #include <ode/contact.h> | ||
34 | #include <ode/collision.h> | ||
35 | #include "objects.h" | ||
36 | |||
37 | //**************************************************************************** | ||
38 | // constants and macros | ||
39 | |||
40 | // mask for the number-of-contacts field in the dCollide() flags parameter | ||
41 | #define NUMC_MASK (0xffff) | ||
42 | |||
43 | #define IS_SPACE(geom) \ | ||
44 | ((geom)->type >= dFirstSpaceClass && (geom)->type <= dLastSpaceClass) | ||
45 | |||
46 | //**************************************************************************** | ||
47 | // geometry object base class | ||
48 | |||
49 | |||
50 | // geom flags. | ||
51 | // | ||
52 | // GEOM_DIRTY means that the space data structures for this geom are | ||
53 | // potentially not up to date. NOTE THAT all space parents of a dirty geom | ||
54 | // are themselves dirty. this is an invariant that must be enforced. | ||
55 | // | ||
56 | // GEOM_AABB_BAD means that the cached AABB for this geom is not up to date. | ||
57 | // note that GEOM_DIRTY does not imply GEOM_AABB_BAD, as the geom might | ||
58 | // recalculate its own AABB but does not know how to update the space data | ||
59 | // structures for the space it is in. but GEOM_AABB_BAD implies GEOM_DIRTY. | ||
60 | // the valid combinations are: | ||
61 | // 0 | ||
62 | // GEOM_DIRTY | ||
63 | // GEOM_DIRTY|GEOM_AABB_BAD | ||
64 | // GEOM_DIRTY|GEOM_AABB_BAD|GEOM_POSR_BAD | ||
65 | |||
66 | enum { | ||
67 | GEOM_DIRTY = 1, // geom is 'dirty', i.e. position unknown | ||
68 | GEOM_POSR_BAD = 2, // geom's final posr is not valid | ||
69 | GEOM_AABB_BAD = 4, // geom's AABB is not valid | ||
70 | GEOM_PLACEABLE = 8, // geom is placeable | ||
71 | GEOM_ENABLED = 16, // geom is enabled | ||
72 | |||
73 | // Ray specific | ||
74 | RAY_FIRSTCONTACT = 0x10000, | ||
75 | RAY_BACKFACECULL = 0x20000, | ||
76 | RAY_CLOSEST_HIT = 0x40000 | ||
77 | }; | ||
78 | |||
79 | |||
80 | // geometry object base class. pos and R will either point to a separately | ||
81 | // allocated buffer (if body is 0 - pos points to the dxPosR object) or to | ||
82 | // the pos and R of the body (if body nonzero). | ||
83 | // a dGeomID is a pointer to this object. | ||
84 | |||
85 | struct dxGeom : public dBase { | ||
86 | int type; // geom type number, set by subclass constructor | ||
87 | int gflags; // flags used by geom and space | ||
88 | void *data; // user-defined data pointer | ||
89 | dBodyID body; // dynamics body associated with this object (if any) | ||
90 | dxGeom *body_next; // next geom in body's linked list of associated geoms | ||
91 | dxPosR *final_posr; // final position of the geom in world coordinates | ||
92 | dxPosR *offset_posr; // offset from body in local coordinates | ||
93 | |||
94 | // information used by spaces | ||
95 | dxGeom *next; // next geom in linked list of geoms | ||
96 | dxGeom **tome; // linked list backpointer | ||
97 | dxSpace *parent_space;// the space this geom is contained in, 0 if none | ||
98 | dReal aabb[6]; // cached AABB for this space | ||
99 | unsigned long category_bits,collide_bits; | ||
100 | |||
101 | dxGeom (dSpaceID _space, int is_placeable); | ||
102 | virtual ~dxGeom(); | ||
103 | |||
104 | |||
105 | // calculate our new final position from our offset and body | ||
106 | void computePosr(); | ||
107 | |||
108 | // recalculate our new final position if needed | ||
109 | void recomputePosr() | ||
110 | { | ||
111 | if (gflags & GEOM_POSR_BAD) { | ||
112 | computePosr(); | ||
113 | gflags &= ~GEOM_POSR_BAD; | ||
114 | } | ||
115 | } | ||
116 | |||
117 | virtual void computeAABB()=0; | ||
118 | // compute the AABB for this object and put it in aabb. this function | ||
119 | // always performs a fresh computation, it does not inspect the | ||
120 | // GEOM_AABB_BAD flag. | ||
121 | |||
122 | virtual int AABBTest (dxGeom *o, dReal aabb[6]); | ||
123 | // test whether the given AABB object intersects with this object, return | ||
124 | // 1=yes, 0=no. this is used as an early-exit test in the space collision | ||
125 | // functions. the default implementation returns 1, which is the correct | ||
126 | // behavior if no more detailed implementation can be provided. | ||
127 | |||
128 | // utility functions | ||
129 | |||
130 | // compute the AABB only if it is not current. this function manipulates | ||
131 | // the GEOM_AABB_BAD flag. | ||
132 | |||
133 | void recomputeAABB() { | ||
134 | if (gflags & GEOM_AABB_BAD) { | ||
135 | // our aabb functions assume final_posr is up to date | ||
136 | recomputePosr(); | ||
137 | computeAABB(); | ||
138 | gflags &= ~GEOM_AABB_BAD; | ||
139 | } | ||
140 | } | ||
141 | |||
142 | // add and remove this geom from a linked list maintained by a space. | ||
143 | |||
144 | void spaceAdd (dxGeom **first_ptr) { | ||
145 | next = *first_ptr; | ||
146 | tome = first_ptr; | ||
147 | if (*first_ptr) (*first_ptr)->tome = &next; | ||
148 | *first_ptr = this; | ||
149 | } | ||
150 | void spaceRemove() { | ||
151 | if (next) next->tome = tome; | ||
152 | *tome = next; | ||
153 | } | ||
154 | |||
155 | // add and remove this geom from a linked list maintained by a body. | ||
156 | |||
157 | void bodyAdd (dxBody *b) { | ||
158 | body = b; | ||
159 | body_next = b->geom; | ||
160 | b->geom = this; | ||
161 | } | ||
162 | void bodyRemove(); | ||
163 | }; | ||
164 | |||
165 | //**************************************************************************** | ||
166 | // the base space class | ||
167 | // | ||
168 | // the contained geoms are divided into two kinds: clean and dirty. | ||
169 | // the clean geoms have not moved since they were put in the list, | ||
170 | // and their AABBs are valid. the dirty geoms have changed position, and | ||
171 | // their AABBs are may not be valid. the two types are distinguished by the | ||
172 | // GEOM_DIRTY flag. all dirty geoms come *before* all clean geoms in the list. | ||
173 | |||
174 | struct dxSpace : public dxGeom { | ||
175 | int count; // number of geoms in this space | ||
176 | dxGeom *first; // first geom in list | ||
177 | int cleanup; // cleanup mode, 1=destroy geoms on exit | ||
178 | |||
179 | // cached state for getGeom() | ||
180 | int current_index; // only valid if current_geom != 0 | ||
181 | dxGeom *current_geom; // if 0 then there is no information | ||
182 | |||
183 | // locking stuff. the space is locked when it is currently traversing its | ||
184 | // internal data structures, e.g. in collide() and collide2(). operations | ||
185 | // that modify the contents of the space are not permitted when the space | ||
186 | // is locked. | ||
187 | int lock_count; | ||
188 | |||
189 | dxSpace (dSpaceID _space); | ||
190 | ~dxSpace(); | ||
191 | |||
192 | void computeAABB(); | ||
193 | |||
194 | void setCleanup (int mode); | ||
195 | int getCleanup(); | ||
196 | int query (dxGeom *geom); | ||
197 | int getNumGeoms(); | ||
198 | virtual dxGeom *getGeom (int i); | ||
199 | |||
200 | virtual void add (dxGeom *); | ||
201 | virtual void remove (dxGeom *); | ||
202 | virtual void dirty (dxGeom *); | ||
203 | |||
204 | virtual void cleanGeoms()=0; | ||
205 | // turn all dirty geoms into clean geoms by computing their AABBs and any | ||
206 | // other space data structures that are required. this should clear the | ||
207 | // GEOM_DIRTY and GEOM_AABB_BAD flags of all geoms. | ||
208 | |||
209 | virtual void collide (void *data, dNearCallback *callback)=0; | ||
210 | virtual void collide2 (void *data, dxGeom *geom, dNearCallback *callback)=0; | ||
211 | }; | ||
212 | |||
213 | |||
214 | #endif | ||