if glob.artifacts~=nil and event.tick%60==0 then
        for i,_ in pairs(glob.artifacts) do
            local entities=game.findentities({{glob.artifacts[i].position.x-1,glob.artifacts[i].position.y-1},{glob.artifacts[i].position.x+1,glob.artifacts[i].position.y+1}})
            for x,_ in pairs(entities) do
                if entities[x].valid and entities[x].name=="artifact-collector" then
                    local artifacts=game.findentities({{glob.artifacts[i].position.x-20,glob.artifacts[i].position.y-20},{glob.artifacts[i].position.x+20,glob.artifacts[i].position.y+20}})
                    for z,_ in pairs(artifacts) do
                        if artifacts[z].name=="item-on-ground" and artifacts[z].stack.name=="small-alien-artifact" and entities[x].caninsert{name="small-alien-artifact",count=1} then
                            entities[x].insert{name="small-alien-artifact",count=1}
                             game.createentity({name="alien-artifact-pickup",position={artifacts[z].position.x,artifacts[z].position.y+0.5}})
                            artifacts[z].destroy()
                            break
                        end
                    end
                end
            end
        end
    end