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NWN Script: change_light_spawn_pt_on_death.htm

Author

Sticky: Post Working Scripts Here

LMCBoy

Posted: Tuesday, 25 June 01:45AM

Hey everyone,

Here's a simple function that solves a problem I was having with locations of creatures/items vs. locations of tiles.

I need to use SetTileMainLightColor() to change the lighting of the tile containing a creature's spawn point when the creature gets killed. I was trying to pass the location of the spawn point as the first argument to SetTileMainLight(), but that doesn't work. I eventually figured out that the location vector of a creature/item is not the same thing as the location vector of a tile. The former has units of meters, and the latter is just the tile's position in the grid.

This function will return a tile-location for the tile which contains the creature/item at the item-location given as an argument (you can either paste it into your script, or use it in an include file):

NWScript:

location GetTileLocation( location loc ) {
    //:Determine the tile-location of the tile 
    //:containing the item-location loc
    //:by LMCBoy <jharris@30doradus.org>
    //Divide by 10 and take the integer to get the 
    //tile coordinates
    vector vec = GetPositionFromLocation( loc );
    float fNewX = IntToFloat( FloatToInt( vec.x/10.0 ) );
    float fNewY = IntToFloat( FloatToInt( vec.y/10.0 ) );
    float fNewZ = IntToFloat( FloatToInt( vec.z/10.0 ) );
    //Construct the new tile-location
    vector vNew = Vector( fNewX, fNewY, fNewZ );
    location lNew = Location( GetAreaFromLocation( loc ),
        vNew, GetFacingFromLocation( loc ) );
    return lNew;
}

And, just for laughs, here are the lines I added to the creature's OnDeath script to change the lighting of its spawn point (note use of above function). For the spawn
location, I added 'SetLocalLocation( OBJECT_SELF, "lmc_SkelInitLocation", GetLocation( OBJECT_SELF ) )' to the creature's OnSpawn script. You could also put a waypoint at the location, and just do
'GetLocation( GetObjectByTag( "MY_WAYPOINT" ) )' here.

NWScript:

//Add these lines to OnDeath script to change
    //lighting at spawn point 
    object oKiller = GetLastKiller();
    location lSpawn = GetLocalLocation(
        OBJECT_SELF, "lmc_SkelInitLocation" );
    location lTile = GetTileLocation( lSpawn );
    if ( GetIsPC( oKiller ) ) {
        SetTileMainLightColor( lTile,
            TILE_MAIN_LIGHT_COLOR_BLACK,
            TILE_MAIN_LIGHT_COLOR_BRIGHT_WHITE );
        RecomputeStaticLighting( GetArea( OBJECT_SELF ) );
    }

cheers,
LMCBoy

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