function buyBuildings() {
    var customVars = MODULES["buildings"];
    var oldBuy = preBuy2();
    game.global.buyAmt = 1;
    var perTrap = 1 + game.portal.Bait.level;
    var trapFlag = perTrap > game.resources.trimps.owned / (game.global.challengeActive == "Trapper" ? 1000 : 100); //if trap produces more than 1/100th of our population (1/1000th in trapper), use traps
    if(trapFlag && game.resources.trimps.owned < trimpsRealMax - 1 && canAffordBuilding('Trap') && game.global.buildingsQueue.length === 0 && game.buildings.Trap.owned === 0)
        safeBuyBuilding('Trap');

    buyFoodEfficientHousing();  //["Hut", "House", "Mansion", "Hotel", "Resort"];
    if ((game.jobs.Miner.locked && game.global.challengeActive != 'Metal') || (game.jobs.Scientist.locked && game.global.challengeActive != "Scientist"))
        return;
    buyGemEfficientHousing();   //["Hotel", "Resort", "Gateway", "Collector", "Warpstation"];
    //WormHoles:
    if ((game.buildings.Wormhole.owned < getPageSetting('MaxWormhole') || getPageSetting('MaxWormhole') < 0) && !game.buildings.Wormhole.locked) {
        safeBuyBuilding('Wormhole');
    }
    //Buy non-housing buildings:
    //Gyms:
    if (!game.buildings.Gym.locked) {
        var skipGym = false;
        if ( game.buildings.Gym.owned >= getPageSetting('MaxGym') && getPageSetting('MaxGym') >= 0)
            skipGym = true;
        if(game.upgrades.Gymystic.allowed > game.upgrades.Gymystic.done)
            skipGym = true; //dont spend wood on gyms when we need gymystic upgrade. should add a check to buy gyms until they cost some percentage of gymystic
        //ShieldBlock cost Effectiveness:
        if (game.equipment['Shield'].blockNow) {
            var gymEff = evaluateEquipmentEfficiency('Gym');
            var shieldEff = evaluateEquipmentEfficiency('Shield');
            if ((gymEff.Wall) || (gymEff.Factor <= shieldEff.Factor && !gymEff.Wall))
                skipGym = true;
        }
        if(buyCoords && game.upgrades.Coordination.done < game.upgrades.Coordination.allowed)
            skipGym = true;
        if (!skipGym)
            safeBuyBuilding('Gym');
    }
    //Tributes:
    var tributes = getPageSetting('MaxTribute');
    if (!game.buildings.Tribute.locked && tributes !== 0 && (tributes > game.buildings.Tribute.owned || tributes < 0)){
        safeBuyBuilding('Tribute');
    }

    if(game.global.spireActive && !isActiveSpireAT() && getPageSetting('NurseriesSurvive')){
        var howMany = calcCurrSendHealth(true, true, false, game.global.world);
        if(howMany > 0){
            safeBuyBuilding('Nursery');
            postBuy2(oldBuy);
            return;
        }
    }

    var nursminlvl = getPageSetting('NoNurseriesUntil');
    var maxNursery = (isActiveSpireAT() ? getPageSetting('PreSpireNurseries') : getPageSetting('MaxNursery'));
    if (((game.global.world < nursminlvl || nursminlvl < 0) && !isActiveSpireAT()) || (game.buildings.Nursery.owned >= maxNursery && maxNursery >= 0) || maxNursery === 0 || (getPageSetting('NoNurseriesIce') && (getEmpowerment() == "Ice") && game.global.world > nursminlvl+5)) {
        postBuy2(oldBuy);
        return;
    }

    /*var nwr = customVars.nursCostRatio; //nursery to warpstation/collector cost ratio. Also for extra gems.
    var nursCost = getBuildingItemPrice(game.buildings.Nursery, "gems", false, 1);
    var warpCost = getBuildingItemPrice(game.buildings.Warpstation, "gems", false, 1);
    var collCost = getBuildingItemPrice(game.buildings.Collector, "gems", false, 1);
    var resomod = Math.pow(1 - game.portal.Resourceful.modifier, game.portal.Resourceful.level); //need to apply the resourceful mod when comparing anything other than building vs building.
    //buy nurseries irrelevant of warpstations (after we unlock them) - if we have enough extra gems that its not going to impact anything. note:(we will be limited by wood anyway - might use a lot of extra wood)
    var buyWithExtraGems = (!game.buildings.Warpstation.locked && nursCost * resomod < nwr * game.resources.gems.owned);
    if ((buyWithExtraGems ||
         ((nursCost < nwr * warpCost || game.buildings.Warpstation.locked) &&
          (nursCost < nwr * collCost || game.buildings.Collector.locked || !game.buildings.Warpstation.locked)))) {*/
           safeBuyBuilding('Nursery');
    //}
    postBuy2(oldBuy);
}