// SPDX-License-Identifier: MIT
// Copyright (c) 2026 Incoprea
// Limit a full3D pose change by angular speed
// Not compiled or tested in-world
// Setup: Use a spare owned prim. Set Euler current/target, positive MAX_SPEED and nonnegative DT. Touch for private calculations.
// Stop / restore: Disable/remove. No camera or object settings are changed.
// Notes: Uses the minimum rotation path and clamps to the target when the budget is sufficient.
// License: see LICENSE in this distribution.
// Original Incoprea. MIT. Transform planning only.
vector CURRENT=<10.0,15.0,20.0>;
vector TARGET=<70.0,-20.0,100.0>;
float MAX_SPEED=45.0;
float DT=0.2;
default
{
    touch_start(integer detectedCount)
    {
        if(llDetectedKey(0)!=llGetOwner())return;
        if(MAX_SPEED<=0.0||DT<0.0)
        {
            llOwnerSay("Invalid rate/time.");
            return;
        }
        rotation a=llEuler2Rot(CURRENT*DEG_TO_RAD);
        rotation b=llEuler2Rot(TARGET*DEG_TO_RAD);
        rotation delta=b/a;
        float angle=llRot2Angle(delta);
        if(angle<0.000001)
        {
            llOwnerSay("Already at target.");
            return;
        }
        float step=MAX_SPEED*DEG_TO_RAD*DT;
        if(step>angle)step=angle;
        rotation result=llAxisAngle2Rot(llRot2Axis(delta),step)*a;
        llOwnerSay("Next rotation="+(string)result+" fraction="+(string)(step/angle));
    }
}