Touch start

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/LSL

touch_start

Description

! Event: touch_start( integer num_detected ){ ; }

2	Event ID
	Delay

Triggered by the start of agent clicking on task

• integer

num_detected

–

Number of agents detected touching during the last clockcycle

Caveats

• When changing from a state that lacks a touch event into a state that has a touch event, the first touch will be dropped; this effects all three touch events (touch_start, touch, touch_end). See: SVC-3017

Examples

You can use numbers 0 through num_detected - 1 to get detected agent keys: <lsl>default {

   touch_start(integer num_detected)
   {
       integer i = 0;
       for(; i<num_detected; ++i)
           llWhisper(0, "Touched by " + llKey2Name(llDetectedKey(i)));
   }

}</lsl><lsl>// If using a touch to change states be careful about the touch_ event order...

// On clicking a prim with touch events we trigger touch_start (as), touch (during) and touch_end (as released).

// The chain of events is established in the script as touch_start is triggered that remains intact until either

// touch_end is triggered or a new touch_start (discounting resets, deletions, taking to inventory etc.).

default {

   touch_start(integer nd)
   {
       llSay(0, "You just started touching me so I'm going to the other state...");
       state other;
   }

// A very rapid click would (and does if your VERY quick) beat the state change so the script would/does not behave as expected. } state other {

   touch_end(integer nd)
   {

// The average click will have you catapult through this state with nothing but a chatted message to remember it by.

       llSay(0, "The touch that brought you here just ended so I'm going back to default...");
       state default;
   }

}</lsl>

See Also

Events

•	touch
•	touch_end

Functions

•	llSetTouchText
•	llPassTouches
•	LlDetectedTouchFace
•	LlDetectedTouchST
•	LlDetectedTouchUV
•	LlDetectedTouchPos
•	LlDetectedTouchNormal
•	LlDetectedTouchBinormal

Deep Notes

Issues

All Issues

~ Search JIRA for related Issues

SVC-3017

A

Server drops first touch event when a script returns to a state with a touch_start handler

Signature
event void touch_start( integer num_detected );