Air/Sea Altimeter
default
{
state_entry()
{
llSetTimerEvent(.01); // How often your timer() event updates
}
timer()
{
vector pos = llGetPos(); // Gets your current position
vector size = llGetAgentSize(llGetOwner()); // Get the dimensions of your agent
size.z = size.z / 2.0; // Halve the height element of your agent, get altitude from feet
float aboveground = ((float)pos.z - llGround(<0.0,0.0,0.0>) - size.z); // Distance above ground
if (aboveground < 0.0) // If it thinks your feet are below ground
{
aboveground = llSqrt(aboveground * aboveground); // - flip it
}
if (aboveground < 0.09) // Check the margin of error for zeroing - you can redefine this
{
aboveground = 0.0; // Zero it out
}
vector Speed = llGetVel(); // LSL function that should be fixed in next release.
float RealSpeed = llVecMag(Speed); // Convert it to velocity you can use.
float abovewater = llWater(<0.0,0.0,0.0>) - pos.z; // difference between yourwater height
if (pos.z >= llWater(<0.0,0.0,0.0>)) // If at or above water
{
abovewater = llSqrt(abovewater * abovewater);
}
if (pos.z < llWater(<0.0,0.0,0.0>)) // If underwater
{
abovewater = abovewater - (abovewater * 2.0); // Push the number into the negative range
}
llSetText("Sea Lvl ALT: " + (string)abovewater + "\n" + "Grnd Lvl ALT: " + (string)(aboveground) + "\nSpeed: " + (string)RealSpeed, <1.0,0.0,0.0>, 1.0); // Emit string
}
}
