Go to the source code of this file.
Classes | |
| struct | b2Version |
Macros | |
| #define | b2_aabbExtension 0.1f |
| #define | b2_aabbMultiplier 2.0f |
| #define | b2_angularSleepTolerance (2.0f / 180.0f * b2_pi) |
| A body cannot sleep if its angular velocity is above this tolerance. More... | |
| #define | b2_angularSlop (2.0f / 180.0f * b2_pi) |
| #define | b2_baumgarte 0.2f |
| #define | b2_epsilon FLT_EPSILON |
| #define | b2_linearSleepTolerance 0.01f |
| A body cannot sleep if its linear velocity is above this tolerance. More... | |
| #define | b2_linearSlop 0.005f |
| #define | b2_maxAngularCorrection (8.0f / 180.0f * b2_pi) |
| #define | b2_maxFloat FLT_MAX |
| #define | b2_maxLinearCorrection 0.2f |
| #define | b2_maxManifoldPoints 2 |
| #define | b2_maxPolygonVertices 8 |
| #define | b2_maxRotation (0.5f * b2_pi) |
| #define | b2_maxRotationSquared (b2_maxRotation * b2_maxRotation) |
| #define | b2_maxSubSteps 8 |
| Maximum number of sub-steps per contact in continuous physics simulation. More... | |
| #define | b2_maxTOIContacts 32 |
| Maximum number of contacts to be handled to solve a TOI impact. More... | |
| #define | b2_maxTranslation 2.0f |
| #define | b2_maxTranslationSquared (b2_maxTranslation * b2_maxTranslation) |
| #define | B2_NOT_USED(x) ((void)(x)) |
| #define | b2_pi 3.14159265359f |
| #define | b2_polygonRadius (2.0f * b2_linearSlop) |
| #define | b2_timeToSleep 0.5f |
| The time that a body must be still before it will go to sleep. More... | |
| #define | b2_toiBaugarte 0.75f |
| #define | b2_velocityThreshold 1.0f |
| #define | b2Assert(A) assert(A) |
Typedefs | |
| typedef float | float32 |
| typedef double | float64 |
| typedef signed short | int16 |
| typedef signed int | int32 |
| typedef signed char | int8 |
| typedef unsigned short | uint16 |
| typedef unsigned int | uint32 |
| typedef unsigned char | uint8 |
Functions | |
| void * | b2Alloc (int32 size) |
| Implement this function to use your own memory allocator. More... | |
| void | b2Free (void *mem) |
| If you implement b2Alloc, you should also implement this function. More... | |
| void | b2Log (const char *string,...) |
| Logging function. More... | |
Variables | |
| b2Version | b2_version |
| Current version. More... | |
Detailed Description
Global tuning constants based on meters-kilograms-seconds (MKS) units.
Definition in file b2Settings.h.
Macro Definition Documentation
| #define b2_aabbExtension 0.1f |
This is used to fatten AABBs in the dynamic tree. This allows proxies to move by a small amount without triggering a tree adjustment. This is in meters.
Definition at line 59 of file b2Settings.h.
| #define b2_aabbMultiplier 2.0f |
This is used to fatten AABBs in the dynamic tree. This is used to predict the future position based on the current displacement. This is a dimensionless multiplier.
Definition at line 64 of file b2Settings.h.
| #define b2_angularSleepTolerance (2.0f / 180.0f * b2_pi) |
A body cannot sleep if its angular velocity is above this tolerance.
Definition at line 126 of file b2Settings.h.
| #define b2_angularSlop (2.0f / 180.0f * b2_pi) |
A small angle used as a collision and constraint tolerance. Usually it is chosen to be numerically significant, but visually insignificant.
Definition at line 72 of file b2Settings.h.
| #define b2_baumgarte 0.2f |
This scale factor controls how fast overlap is resolved. Ideally this would be 1 so that overlap is removed in one time step. However using values close to 1 often lead to overshoot.
Definition at line 113 of file b2Settings.h.
| #define b2_epsilon FLT_EPSILON |
Definition at line 39 of file b2Settings.h.
| #define b2_linearSleepTolerance 0.01f |
A body cannot sleep if its linear velocity is above this tolerance.
Definition at line 123 of file b2Settings.h.
| #define b2_linearSlop 0.005f |
A small length used as a collision and constraint tolerance. Usually it is chosen to be numerically significant, but visually insignificant.
Definition at line 68 of file b2Settings.h.
| #define b2_maxAngularCorrection (8.0f / 180.0f * b2_pi) |
The maximum angular position correction used when solving constraints. This helps to prevent overshoot.
Definition at line 98 of file b2Settings.h.
| #define b2_maxFloat FLT_MAX |
Definition at line 38 of file b2Settings.h.
| #define b2_maxLinearCorrection 0.2f |
The maximum linear position correction used when solving constraints. This helps to prevent overshoot.
Definition at line 94 of file b2Settings.h.
| #define b2_maxManifoldPoints 2 |
The maximum number of contact points between two convex shapes. Do not change this value.
Definition at line 50 of file b2Settings.h.
| #define b2_maxPolygonVertices 8 |
The maximum number of vertices on a convex polygon. You cannot increase this too much because b2BlockAllocator has a maximum object size.
Definition at line 54 of file b2Settings.h.
| #define b2_maxRotation (0.5f * b2_pi) |
The maximum angular velocity of a body. This limit is very large and is used to prevent numerical problems. You shouldn't need to adjust this.
Definition at line 107 of file b2Settings.h.
| #define b2_maxRotationSquared (b2_maxRotation * b2_maxRotation) |
Definition at line 108 of file b2Settings.h.
| #define b2_maxSubSteps 8 |
Maximum number of sub-steps per contact in continuous physics simulation.
Definition at line 80 of file b2Settings.h.
| #define b2_maxTOIContacts 32 |
Maximum number of contacts to be handled to solve a TOI impact.
Definition at line 86 of file b2Settings.h.
| #define b2_maxTranslation 2.0f |
The maximum linear velocity of a body. This limit is very large and is used to prevent numerical problems. You shouldn't need to adjust this.
Definition at line 102 of file b2Settings.h.
| #define b2_maxTranslationSquared (b2_maxTranslation * b2_maxTranslation) |
Definition at line 103 of file b2Settings.h.
Definition at line 26 of file b2Settings.h.
| #define b2_pi 3.14159265359f |
Definition at line 40 of file b2Settings.h.
| #define b2_polygonRadius (2.0f * b2_linearSlop) |
The radius of the polygon/edge shape skin. This should not be modified. Making this smaller means polygons will have an insufficient buffer for continuous collision. Making it larger may create artifacts for vertex collision.
Definition at line 77 of file b2Settings.h.
| #define b2_timeToSleep 0.5f |
The time that a body must be still before it will go to sleep.
Definition at line 120 of file b2Settings.h.
| #define b2_toiBaugarte 0.75f |
Definition at line 114 of file b2Settings.h.
| #define b2_velocityThreshold 1.0f |
A velocity threshold for elastic collisions. Any collision with a relative linear velocity below this threshold will be treated as inelastic.
Definition at line 90 of file b2Settings.h.
| #define b2Assert | ( | A | ) | assert(A) |
Definition at line 27 of file b2Settings.h.
Typedef Documentation
| typedef float float32 |
Definition at line 35 of file b2Settings.h.
| typedef double float64 |
Definition at line 36 of file b2Settings.h.
| typedef signed short int16 |
Definition at line 30 of file b2Settings.h.
| typedef signed int int32 |
Definition at line 31 of file b2Settings.h.
| typedef signed char int8 |
Definition at line 29 of file b2Settings.h.
| typedef unsigned short uint16 |
Definition at line 33 of file b2Settings.h.
| typedef unsigned int uint32 |
Definition at line 34 of file b2Settings.h.
| typedef unsigned char uint8 |
Definition at line 32 of file b2Settings.h.
Function Documentation
| void* b2Alloc | ( | int32 | size | ) |
Implement this function to use your own memory allocator.
Definition at line 27 of file b2Settings.cpp.
| void b2Free | ( | void * | mem | ) |
If you implement b2Alloc, you should also implement this function.
Definition at line 32 of file b2Settings.cpp.
| void b2Log | ( | const char * | string, |
| ... | |||
| ) |
Logging function.
Definition at line 38 of file b2Settings.cpp.
Variable Documentation
| b2Version b2_version |
Current version.
Definition at line 24 of file b2Settings.cpp.