This Roll20 script sets the has sight setting for mass tokens. Use with caution. Command is: !set-has-sight --[true|false] --[npc|pc|all]

Mass Sight

on('ready',()=>{

    const playerCanControl = (obj, playerid='any') => {
        const playerInControlledByList = (list, playerid) => list.includes('all') || list.includes(playerid) || ('any'===playerid && list.length);
        let players = obj.get('controlledby')
            .split(/,/)
            .filter(s=>s.length);

        if(playerInControlledByList(players,playerid)){
            return true;
        }

        if('' !== obj.get('represents') ) {
            players = (getObj('character',obj.get('represents')) || {get: function(){return '';} } )
                .get('controlledby').split(/,/)
                .filter(s=>s.length);
            return  playerInControlledByList(players,playerid);
        }
        return false;
    };

    const setHasSightByClass = (type, value) => {
        let filter = () => true;

        switch(type.toLowerCase()){
            default:
            case 'npcs':
                filter=(t)=> ! playerCanControl(t);
                break;

            case 'players':
                filter=(t)=> playerCanControl(t);
                break;

            case 'all':
                break;
        }


        let tokens = findObjs({
            type: 'graphic',
			subtype: 'token',
			light_hassight: !value  // only need to look at ones we would be changing =D
        }).filter(filter);

        let tokenCount = tokens.length;

        const burndown = () => {
            if(tokens.length) {
                let t = tokens.shift();
                if(t) {
                    t.set({
                        light_hassight: value
                    });
                }
                setTimeout(burndown,0);
            } else {
                sendChat('',`/w gm Set ${tokenCount} token(s) to ${value?'Has Sight':'No Sight'}`);
            }
        };

        burndown();
    };

    on('chat:message',(msg)=>{
        if('api' === msg.type && /!set-has-sight\b/i.test(msg.content)){
            let args = msg.content.split(/\s+/).map(s=>s.toLowerCase());
            let type = 'npcs';
            let value = false;

            if(args.includes('--npcs') || args.includes('--npc')){
                type = 'npcs';
            } else if(args.includes('--pcs') || args.includes('--pc') || args.includes('--players') || args.includes('--player') ){
                type = 'players';
            } else if(args.includes('--all') ){
                type = 'all';
            }

            if(args.includes('--sight') || args.includes('--true') ) {
                value = true;
            } else if( args.includes('--blind') || args.includes('--false') ) {
                value = false;
            }

            setHasSightByClass(type,value);
        }
    });
});

This Roll20 script sets the has sight setting for mass tokens. Use with caution since it will affect all tokens in the game. Its intended use is to globally change sight settings in a purchased module.

Command is:

!set-has-sight --[true|false] --[npc|pc|all]

PC is defined as any token with a specified player controller