#include <c4d_particles.h>
Callback interface for nodes that register collisions.
The easiest way to create this is to implement the
TP_BaseCollision
class:
This class is only forward-declared in
c4d_particles.h
, so as long as the linker approves this is fine.
范例：
在
TP_MSG_GET_COLLISIONINTERFACE
message then simply set the passed
TP_CollisionInterface
pointer to
&basecol.ci
, for a global
TP_BaseCollision
basecol
object that was previously created.
Thinking Particles will then call
CheckCollision()
as needed.
Public Attributes |
|
| TP_BaseCollision * | base |
| Bool (TP_BaseCollision::* | CheckCollision )( Int32 collision, TP_MasterSystem *msys, Int32 pid, Float t, 向量 &pos, 向量 &vel, TP_Spin &spin, Float dt, Float &ct) |
| TP_BaseCollision * base |
Base class pointer.
| Bool (TP_BaseCollision::* CheckCollision( Int32 collision, TP_MasterSystem *msys, Int32 pid, Float t, 向量 &pos, 向量 &vel, TP_Spin &spin, Float dt, Float &ct) |
Called by Thinking Particles when a collision handle is registered with
TP_MasterSystem::SetCollision()
, and provided Thinking Particles with a
TP_CollisionInterface
在
TP_MSG_GET_COLLISIONINTERFACE
message.
Evaluate the passed collision parameters and set the output parameters. Thinking Particles will then update the particle values.
| [in] | collision | The collision ID. This is GvNode::GetOperatorID() for the node responsible for the collision. |
| [in] | msys | The master system. The caller owns the pointed TP_MasterSystem . |
| [in] | pid | The particle ID: 0 <= pid < msys -> NumParticles() |
| [in] | t | The time to evaluate the collision at. Collisions are detected between t - dt and t t. |
| [out] | pos | Assign the new position of the object if there is a collision. |
| [out] | vel | Assign the new velocity of the object if there is a collision. |
| [out] | spin | Assign the new spin of the object if there is a collision. |
| [in] | dt | The time since the last evaluation, i.e. the time to look backwards for collisions. |
| [in] | ct | Assign the collision time, if there was a collision. This will generally be less than t . |
