// SPDX-License-Identifier: MIT
// Copyright (c) 2026 Incoprea
// Sample an ideal projectile arc
// Not compiled or tested in-world
// Setup: Place in a spare owned prim. Set START, VELOCITY, GRAVITY and positive DURATION. Touch for owner-only output.
// Stop / restore: Remove/disable. The script calculates only; no scene properties change.
// Notes: This is ideal kinematics with no collisions or drag. It does not rez or launch a projectile.
// License: see LICENSE in this distribution.
// Original Incoprea. MIT. Planning only.
vector START=<0.0,0.0,1.0>;
vector VELOCITY=<4.0,0.0,6.0>;
vector GRAVITY=<0.0,0.0,-9.81>;
float DURATION=1.0;
default
{
    touch_start(integer detectedCount)
    {
        if(llDetectedKey(0)!=llGetOwner())return;
        if(DURATION<=0.0)
        {
            llOwnerSay("Positive duration required.");
            return;
        }
        integer i;
        for(i=0;i<=4;++i)
        {
            float t=DURATION*(float)i/4.0;
            llOwnerSay("t="+(string)t+" position="+(string)(START+VELOCITY*t+0.5*GRAVITY*t*t));
        }
    }
}