Difference between revisions of "LlApplyImpulse"

From Second Life Wiki
Jump to navigation Jump to search
(Added something to caveats.)
Line 12: Line 12:
*The [[llVecMag|magnitude]] of {{LSLP|force}} may be scaled back by the object's available energy.
*The [[llVecMag|magnitude]] of {{LSLP|force}} may be scaled back by the object's available energy.
*The maximum magnitude of {{LSLP|force}} is 20.0 and if it exceeds that it will be scaled back.
*The maximum magnitude of {{LSLP|force}} is 20.0 and if it exceeds that it will be scaled back.
*Silently fails when not called from inside the root prim.
|examples=
|examples=
<lsl>
<lsl>

Revision as of 20:23, 25 September 2012

Summary

Function: llApplyImpulse( vector force, integer local );
0.0 Forced Delay
10.0 Energy

Applies impulse to object

• vector force
• integer local boolean, if TRUE force is treated as a local directional vector, if FALSE force is treated as a region directional vector

Instantaneous impulse. llSetForce has continuous push. "Instantaneous" seems to mean a one second impulse, as an application of a force (in newtons) equal to the object's mass (in kg) for one second will accelerate it to a velocity of 1 (in meters per second), which appears to be what happens with this function.

Caveats

  • Only works in physics-enabled objects.
  • The magnitude of force may be scaled back by the object's available energy.
  • The maximum magnitude of force is 20.0 and if it exceeds that it will be scaled back.
  • Silently fails when not called from inside the root prim.

Examples

<lsl> //Rez an object, and drop this script in it. //This will launch it at the owner. default {

    state_entry() {
         list p = llGetObjectDetails(llGetOwner(), [OBJECT_POS]);
         if(p != []) {
             llSetStatus(STATUS_PHYSICS, TRUE);
             vector pos = llList2Vector(p, 0);
             vector direction = llVecNorm(pos - llGetPos());
             llApplyImpulse(direction * 100, 0);
         }
    }

}

</lsl>

See Also

Functions

•  llApplyRotationalImpulse
•  llSetForce Set continuous force

Deep Notes

Signature

function void llApplyImpulse( vector force, integer local );