OsReplaceRegionEnvironment

//
// osReplaceRegionEnvironment Script Example
//
 
/*
BSD 3-Clause License
Copyright (c) 2019, Sara Payne (Manwa Pastorelli in virtual worlds)
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*/
 
 
//START USER EDITABLE VARIABLES
integer transition = 0; //time it takes for the viewer to transition between one enviroment and another
string daycycle = "Default"; //name or uuid of the day cycle you wish to apply
float dayLength = 0; //how many hours are in each day, using 0 means this value is not changed, otherwise 4-168
float dayOffset = -8; //offset from real time clock UTC//-8 is the viewer default. Range from -11.5 to 11.5
float altitude1 = 30; //height at which the first sky level starts
float altitude2 = 1000;//height at which the second sky level starts
float altitude3 = 4000;// height at which the third sky level starts.
//END USER EDITABLE VARIABLES
 
 
integer altitudesOk;
integer transitionOk;
integer dayLengthOk;
integer dayOffsetOk;
integer valuesOk;
 
default
{
    state_entry()
    {
        altitudesOk = ((altitude3 <= 4000) && (altitude2 < altitude3) && (altitude1 < altitude2) && (altitude1 > llWater( ZERO_VECTOR )) );
        dayLengthOk = (dayLength == 0) || ( dayLength >=4 && dayLength <= 168 );
        dayOffsetOk = (dayOffset >= -11.5 && dayOffset <= 11.5);
        transitionOk = transition >= 0;
        valuesOk = altitudesOk && dayLengthOk && dayOffsetOk && transitionOk;
    }
 
    touch_start(integer dont_care)
    {
        if (valuesOk)
        {   //come here if the altitude values are ok
            integer RegionEnviromentSet = osReplaceRegionEnvironment
            (
                transition, 
                daycycle, 
                dayLength, 
                dayOffset, 
                altitude1, 
                altitude2, 
                altitude3
            );
 
            if (RegionEnviromentSet) llOwnerSay("Regon Enviroment Set Successfully");
            else llOwnerSay("Region Enviroment Set failed, please check the values");
        }
 
        else if (!altitudesOk)
        {
            llOwnerSay("Error:\n 
                    Altitude1 must be higher than the water level\n
                    Altitude2 must be higher than Altitude1\n
                    Altitude3 must be higher than Altitude2\n
                    And Altitude 3 must be no higher than 4000");    
        }
 
        else if (!transitionOk)
        {
            llOwnerSay("Error transition must be 0 or higher");
        }
 
        else if (!dayLengthOk)
        {
            llOwnerSay("Error the length of the day must be either 0 to keep the setting the same or between 4 and 168");
        }
 
        else if (!dayOffsetOk)
        {
            llOwnerSay(("Error the day offset value must be between -11.5 and 11.5"));
        }
    }
}