Collision start

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/LSL

collision_start

Description

Event: collision_start( integer num_detected ){ ; }

5	Event ID
	Delay

Triggered when task starts colliding with another task

• integer

num_detected

Caveats

• Will not detect collisions with ground. Use land_collision_start instead.
• Phantom objects can never receive trigger collision events.
• llVolumeDetect(TRUE) objects get trigger collision_start and collision_end but not collision() events.
• A collision with a hovering avatar does not trigger collisions, unless the avatar turns or moves.
• Only a physical object will get collision events from colliding with a non-physical object.

Examples

default
{
    collision_start(integer num)
    {
        llSay(0,"No pushing.");
    }
}

list DetectedAvatars = [];
default
{
    state_entry()
    {
        llVolumeDetect(TRUE); // Enable detection of people colliding with object....
    }
    collision_start(integer detected)
    {
        integer index = llListFindList(DetectedAvatars, [llDetectedKey(0)]);
        if (index == -1)
        {
            llInstantMessage(llDetectedKey(0), " Welcome to the Community");
        DetectedAvatars = llListInsertList(DetectedAvatars, [llDetectedKey(0)], -1);
        if (llGetListLength(DetectedAvatars) == 2)
        {
        
            DetectedAvatars = llDeleteSubList(DetectedAvatars, 1, 2);
        }
    }
}
}

See Also

Events

•	collision
•	collision_end

Functions

•	llPassCollisions
•	llCollisionFilter
•	llCollisionSound
•	llCollisionSprite
•	llVolumeDetect

Deep Notes

Issues

All Issues

~ Search JIRA for related Issues

SVC-3306

A

Add enumeration to llPassCollisions() to provide PASS_ALWAYS, PASS_IF_NOT_HANDLED, and PASS_NEVER as explicit options. (Was: Collisions passed to parent REGARDLESS llPassCollisions(FALSE) in child)

Signature
event void collision_start( integer num_detected );