Box2D: /build/box2d/src/box2d-adaedf1772ede7420bc9ee569c8cba7952db91a0/include/box2d/b2_time_step.h Source File

| Box2D 2.4.0 A 2D physics engine for games

b2_time_step.h
1 // MIT License
2
3 // Copyright (c) 2019 Erin Catto
4
5 // Permission is hereby granted, free of charge, to any person obtaining a copy
6 // of this software and associated documentation files (the "Software"), to deal
7 // in the Software without restriction, including without limitation the rights
8 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
9 // copies of the Software, and to permit persons to whom the Software is
10 // furnished to do so, subject to the following conditions:
11
12 // The above copyright notice and this permission notice shall be included in all
13 // copies or substantial portions of the Software.
14
15 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 // SOFTWARE.
22 #ifndef B2_TIME_STEP_H
23 #define B2_TIME_STEP_H
24
25 #include "b2_api.h"
26 #include "b2_math.h"
27
29 struct B2_API b2Profile
30 {
31 float step;
32 float collide;
33 float solve;
34 float solveInit;
35 float solveVelocity;
36 float solvePosition;
37 float broadphase;
38 float solveTOI;
39 };
40
42 struct B2_API b2TimeStep
43 {
44 float dt; // time step
45 float inv_dt; // inverse time step (0 if dt == 0).
46 float dtRatio; // dt * inv_dt0
47 int32 velocityIterations;
48 int32 positionIterations;
49 bool warmStarting;
50 };
51
53 struct B2_API b2Position
54 {
55 b2Vec2 c;
56 float a;
57 };
58
60 struct B2_API b2Velocity
61 {
62 b2Vec2 v;
63 float w;
64 };
65
67 struct B2_API b2SolverData
68 {
69 b2TimeStep step;
70 b2Position* positions;
71 b2Velocity* velocities;
72 };
73
74 #endif
b2Vec2
A 2D column vector.
Definition: b2_math.h:42
b2TimeStep
This is an internal structure.
Definition: b2_time_step.h:43
b2Profile
Profiling data. Times are in milliseconds.
Definition: b2_time_step.h:30
b2Position
This is an internal structure.
Definition: b2_time_step.h:54
b2Velocity
This is an internal structure.
Definition: b2_time_step.h:61
b2SolverData
Solver Data.
Definition: b2_time_step.h:68