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llEdgeOfWorld

integer llEdgeOfWorld(vector Position, vector Direction)

Checks to see whether the border hit by Direction from Position is the edge of the world (has no neighboring region).

Returns TRUE if the line along Direction from Position hits the edge of the world in the current simulator, returns FALSE if that edge crosses into another simulator.

Parameters

Position (vector)
Direction (vector)

Technical Details

Return Type: integer
Energy: 10

//--// Tells if there are neighboring sims on touch //--//

default {
  touch_start(integer vIntTouched) {
    vector vPosObject = llGetPos();
    if (!llEdgeOfWorld(vPosObject, <0.0, 1.0, 0.0>)) {
      llOwnerSay("There is a Sim to the North");
    }
    if (!llEdgeOfWorld(vPosObject, <1.0, 0.0, 0.0>)) {
      llOwnerSay("There is a Sim to the East");
    }
    if (!llEdgeOfWorld(vPosObject, <0.0, -1.0, 0.0>)) {
      llOwnerSay("There is a Sim to the South");
    }
    if (!llEdgeOfWorld(vPosObject, <-1.0, 0.0, 0.0>)) {
      llOwnerSay("There is a Sim to the West");
    }
  }
}

Caveats

If the x and y components of Direction are zero (like with ZERO_VECTOR), TRUE is always returned.
Position must be in the region.
Can only be used to detect directly adjacent regions, not diagonally adjacent regions.
This function will also return TRUE if llRequestSimulatorData() returns “up” for an adjacent region but that region doesn’t visibly show when standing next to its border.

Notes

The z component of the Direction parameter is ignored.

See Also

llScriptDanger
STATUS_DIE_AT_EDGE
STATUS_RETURN_AT_EDGE