private func DoKnowledge(int plr)
{
	//Give some knowledge
	var Tools = [Shovel, Hammer, Axe, Pickaxe, Sickle, Dynamite, Pipe, Bucket, Barrel, PowderKeg, Crate, DynamiteBox, Boompack, GrappleBow, TeleGlove];
	var Weaps = [Sword, Shield, Club, Bow, Arrow, Javelin, Musket, LeadShot, IronBomb];
	var Build = [Foundry, WindGenerator, Flagpole, Sawmill, Elevator, ToolsWorkshop, Armory, ChemicalLab, Pump, Kitchen, Windmill, Chest, SteamEngine, Compensator, Shipyard, InventorsLab];
	var Vehic = [Lorry, Catapult, Cannon, Airship, Plane];

	SetPlrKnowledgeArray(plr, Tools);
	SetPlrKnowledgeArray(plr, Weaps);
	SetPlrKnowledgeArray(plr, Build);
	SetPlrKnowledgeArray(plr, Vehic);
}

private func SetPlrKnowledgeArray(int plr, array knowledge)
{
	for(var i = 0; i <= GetLength(knowledge) - 1; i++){
		SetPlrKnowledge(plr, knowledge[i]);
	}
	return GetLength(knowledge) - 1;
}