#include <b2_broad_phase.h>
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| enum | { e_nullProxy = -1
} |
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| int32 | CreateProxy (const b2AABB &aabb, void *userData) |
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void | DestroyProxy (int32 proxyId) |
| | Destroy a proxy. It is up to the client to remove any pairs.
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| void | MoveProxy (int32 proxyId, const b2AABB &aabb, const b2Vec2 &displacement) |
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void | TouchProxy (int32 proxyId) |
| | Call to trigger a re-processing of it's pairs on the next call to UpdatePairs.
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const b2AABB & | GetFatAABB (int32 proxyId) const |
| | Get the fat AABB for a proxy.
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void * | GetUserData (int32 proxyId) const |
| | Get user data from a proxy. Returns nullptr if the id is invalid.
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bool | TestOverlap (int32 proxyIdA, int32 proxyIdB) const |
| | Test overlap of fat AABBs.
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int32 | GetProxyCount () const |
| | Get the number of proxies.
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template<typename T > |
| void | UpdatePairs (T *callback) |
| | Update the pairs. This results in pair callbacks. This can only add pairs.
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| template<typename T > |
| void | Query (T *callback, const b2AABB &aabb) const |
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| template<typename T > |
| void | RayCast (T *callback, const b2RayCastInput &input) const |
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int32 | GetTreeHeight () const |
| | Get the height of the embedded tree.
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int32 | GetTreeBalance () const |
| | Get the balance of the embedded tree.
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float | GetTreeQuality () const |
| | Get the quality metric of the embedded tree.
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| void | ShiftOrigin (const b2Vec2 &newOrigin) |
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The broad-phase is used for computing pairs and performing volume queries and ray casts. This broad-phase does not persist pairs. Instead, this reports potentially new pairs. It is up to the client to consume the new pairs and to track subsequent overlap.
◆ CreateProxy()
| int32 b2BroadPhase::CreateProxy |
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const b2AABB & |
aabb, |
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void * |
userData |
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) |
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Create a proxy with an initial AABB. Pairs are not reported until UpdatePairs is called.
◆ MoveProxy()
| void b2BroadPhase::MoveProxy |
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int32 |
proxyId, |
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const b2AABB & |
aabb, |
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const b2Vec2 & |
displacement |
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) |
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Call MoveProxy as many times as you like, then when you are done call UpdatePairs to finalized the proxy pairs (for your time step).
◆ Query()
template<typename T >
| void b2BroadPhase::Query |
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T * |
callback, |
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const b2AABB & |
aabb |
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) |
| const |
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inline |
Query an AABB for overlapping proxies. The callback class is called for each proxy that overlaps the supplied AABB.
◆ RayCast()
template<typename T >
| void b2BroadPhase::RayCast |
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T * |
callback, |
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const b2RayCastInput & |
input |
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) |
| const |
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inline |
Ray-cast against the proxies in the tree. This relies on the callback to perform a exact ray-cast in the case were the proxy contains a shape. The callback also performs the any collision filtering. This has performance roughly equal to k * log(n), where k is the number of collisions and n is the number of proxies in the tree.
- Parameters
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| input | the ray-cast input data. The ray extends from p1 to p1 + maxFraction * (p2 - p1). |
| callback | a callback class that is called for each proxy that is hit by the ray. |
◆ ShiftOrigin()
| void b2BroadPhase::ShiftOrigin |
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const b2Vec2 & |
newOrigin | ) |
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inline |
Shift the world origin. Useful for large worlds. The shift formula is: position -= newOrigin
- Parameters
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| newOrigin | the new origin with respect to the old origin |
The documentation for this class was generated from the following file:
1.9.4