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functions:lltakecontrols [2018-03-30 09:41 SLT] sei created |
functions:lltakecontrols [2018-03-30 11:55 SLT] (current) sei link to control event for details |
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| Enables the user to use certain control keys or mouse button presses for interacting with a script. | Enables the user to use certain control keys or mouse button presses for interacting with a script. | ||
| - | Requires $lct[PERMISSION_CONTROL] permissions. | + | Requires $lct[PERMISSION_TAKE_CONTROLS] permissions. |
| ===== Parameters ===== | ===== Parameters ===== | ||
| Line 24: | Line 24: | ||
| * Even if $prm[pass_on] is $ct[TRUE], when $lct[CONTROL_ML_LBUTTON] is in the controls, mouse clicks are blocked while in mouselook ($JIRA[SVC-4973], $JIRA[SVC-7532], declared as expected behaviour). | * Even if $prm[pass_on] is $ct[TRUE], when $lct[CONTROL_ML_LBUTTON] is in the controls, mouse clicks are blocked while in mouselook ($JIRA[SVC-4973], $JIRA[SVC-7532], declared as expected behaviour). | ||
| - | * While it's possible for two scripts in the same prim to take controls from two different users, that won't work as expected: there's no way to know the originator of the control. $TODO[Expand/Test again] | + | * While it's possible for two scripts in the same prim to take controls from two different users, that won't work as expected: there's no way to know the originator of the control. $TODO[Expand/Test again] See the $lev[control] event for more details. |
| ===== Short examples ===== | ===== Short examples ===== | ||
| <code lsl2> | <code lsl2> | ||
| - | lltakecontrols(1, 2); // will do xxx | + | // Capture the forward control, but let it still move the avatar forward. |
| + | llTakeControls(CONTROL_FWD, TRUE, TRUE); | ||
| + | |||
| + | // Capture all controls that let the agent move (it can still move when pushed or falling) | ||
| + | llTakeControls(CONTROL_FWD|CONTROL_BACK | ||
| + | |CONTROL_LEFT|CONTROL_RIGHT | ||
| + | |CONTROL_UP|CONTROL_DOWN | ||
| + | |CONTROL_ROT_LEFT|CONTROL_ROT_RIGHT | ||
| + | , TRUE, FALSE); | ||
| </code> | </code> | ||
| ===== Complete examples ===== | ===== Complete examples ===== | ||
| - | <file lsl2 lltakecontrols-example.lsl> | + | This example will report presses of the UP and DOWN controls in chat, after permissions are granted. |
| + | |||
| + | <file lsl2 llTakeControls-example.lsl> | ||
| default | default | ||
| { | { | ||
| state_entry() | state_entry() | ||
| { | { | ||
| - | lltakecontrols(1, 2); | + | llRequestPermissions(llGetOwner(), PERMISSION_TAKE_CONTROLS); |
| + | } | ||
| + | |||
| + | run_time_permissions(integer perms) | ||
| + | { | ||
| + | if (perms & PERMISSION_TAKE_CONTROLS) | ||
| + | llTakeControls(CONTROL_UP | CONTROL_DOWN, TRUE, TRUE); | ||
| + | } | ||
| + | |||
| + | controls(key avatar, integer level, integer edge) | ||
| + | { | ||
| + | if (level & edge & CONTROL_UP) | ||
| + | llOwnerSay("UP pressed"); | ||
| + | if (~level & edge & CONTROL_UP) | ||
| + | llOwnerSay("UP released"); | ||
| + | if (level & edge & CONTROL_DOWN) | ||
| + | llOwnerSay("DOWN pressed"); | ||
| + | if (~level & edge & CONTROL_DOWN) | ||
| + | llOwnerSay("DOWN released"); | ||
| } | } | ||
| } | } | ||
| Line 46: | Line 74: | ||
| ===== See also ===== | ===== See also ===== | ||
| - | * $lfn[llFunction] does such and such | + | * $lfn[llReleaseControls] to release controls that were taken with $fn[llTakeControls], and also the $ct[PERMISSION_TAKE_CONTROLS] permission |
| + | * $lev[control] event, to be notified when controls are pressed and the $prm[accept] parameter is $ct[TRUE]. | ||
| + | * $lfn[llRequestPermissions], $lct[PERMISSION_TAKE_CONTROLS] and $lev[run_time_permissions] are typically needed in scripts that use this function. | ||