Difference between revisions of "LlRotTarget"
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< | <source lang="lsl2"> | ||
vector standrot = <0.0, 0.0, 0.0>; | vector standrot = <0.0, 0.0, 0.0>; | ||
vector fliprot = <45.0, 0.0, 0.0>; | vector fliprot = <45.0, 0.0, 0.0>; | ||
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} | } | ||
</ | </source> | ||
|helpers | |helpers | ||
|also_tests | |also_tests | ||
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|cat1=Physics | |cat1=Physics | ||
|cat2=Target | |cat2=Target | ||
|cat3 | |cat3=At Target | ||
|cat4 | |cat4 | ||
}} | }} | ||
Latest revision as of 14:40, 22 January 2015
| LSL Portal | Functions | Events | Types | Operators | Constants | Flow Control | Script Library | Categorized Library | Tutorials |
Summary
Function: integer llRotTarget( rotation rot, float error );| 68 | Function ID |
| 0.0 | Forced Delay |
| 10.0 | Energy |
This function is to have the script know when it has reached a rotation.
It registers a rot with a error that triggers at_rot_target and not_at_rot_target events continuously until unregistered.
Returns a handle (an integer) to unregister the target with llRotTargetRemove
| • rotation | rot | – | target rotation | |
| • float | error | – | angle in radians, defines when rot has been reached |
A similar function exists for positions: llTarget
This function does not rotate the object, to do that use llSetRot, llRotLookAt or llLookAt.
Caveats
Examples
vector standrot = <0.0, 0.0, 0.0>;
vector fliprot = <45.0, 0.0, 0.0>;
// simple two-state rot target detection and rotation by Hypatia Callisto
// works, to detect a rotation target. An example I wrote
// since there is almost zilch for clean examples for
// at_rot_target, not_at_rot_target, llRotTarget, llRotTargetRemove
integer rottarget;
default
{
state_entry(){
rottarget = llRotTarget(llEuler2Rot(fliprot*DEG_TO_RAD), 0.1);
llSetPrimitiveParams ([PRIM_ROTATION, llEuler2Rot(standrot*DEG_TO_RAD)]); // rotate to starting point
}
not_at_rot_target()
{
llRotTargetRemove( rottarget );
llOwnerSay("not there"); //not at target
}
touch_start (integer total_number)
{
state rotatestate; // change to state for new position
}
}
state rotatestate
{
state_entry(){
rottarget = llRotTarget(llEuler2Rot(fliprot*DEG_TO_RAD), 0.1);
llSetPrimitiveParams ([PRIM_ROTATION, llEuler2Rot(fliprot*DEG_TO_RAD)]); // rotate to new point
}
at_rot_target(integer tnum, rotation targetrot, rotation ourrot)
{
llRotTargetRemove( rottarget );
llOwnerSay("there"); //reached the target
}
touch_start(integer touched){
state default;
}
}
See Also
Events
| • at_rot_target | not_at_rot_target | – | rotational target events | |
| • at_target | not_at_target | – | positional target events |
Functions
| • | llRotTargetRemove | – | Cancel a target rotation | |
| • | llTarget | – | Register a target position | |
| • | llTargetRemove | – | Cancel a target position |