local function fillVanillaConfig()

    config["iron-ore"] = {
        type="resource-ore",

        -- general spawn params
        allotment=100, -- how common resource is
        spawns_per_region={min=1, max=2}, --number of chunks
        richness=12000,        -- resource_ore has only one richness value - resource-liquid has min/max

        size={min=20, max=50}, -- rough radius of area, too high value can produce square shaped areas
        min_amount=500,

        -- resource provided at starting location
        -- probability: 1 = 100% chance to be in starting area
        --              0 = resource is not in starting area
        starting={richness=20000, size=35, probability=1},

        multi_resource_chance=0.20, -- absolute value
        multi_resource={
            ["iron-ore"] = 2, -- ["resource_name"] = allotment
            ['copper-ore'] = 4,
            ["coal"] = 4,
            ["stone"] = 4,
        }
    }

    config["copper-ore"] = {
        type="resource-ore",

        allotment=90,
        spawns_per_region={min=1, max=2},
        richness=11000,
        size={min=20, max=50},
        min_amount=500,

        starting={richness=12000, size=25, probability=1},

        multi_resource_chance=0.20,
        multi_resource={
            ["iron-ore"] = 4,
            ['copper-ore'] = 2,
            ["coal"] = 4,
            ["stone"] = 4,
        }
    }

    config["coal"] = {
        type="resource-ore",

        allotment=80,

        spawns_per_region={min=1, max=1},
        size={min=15, max=25},
        richness=8000,
        min_amount=500,

        starting={richness=6000, size=20, probability=1},

        multi_resource_chance=0.75,
        multi_resource={
            ["crude-oil"] = 1,
            ["iron-ore"] = 3,
            ['copper-ore'] = 3,
        }
    }

    config["stone"] = {
        type="resource-ore",

        allotment=60,
        spawns_per_region={min=1, max=1},
        richness=5000,
        size={min=15, max=20},
        min_amount=250,

        starting={richness=5000, size=16, probability=1},

        multi_resource_chance=0.30,
        multi_resource={
            ["coal"] = 4,
            ["iron-ore"] = 3,
            ['copper-ore'] = 3,
        }
    }

    config["uranium-ore"] = {
        type="resource-ore",

        allotment=40,
        spawns_per_region={min=1, max=1},
        richness=4000,
        size={min=10, max=15},
        min_amount=500,

        starting={richness=2000, size=10, probability=1},
    }

    config["crude-oil"] = {
        type="resource-liquid",
        minimum_amount=200000,
        allotment=70,
        spawns_per_region={min=1, max=1},
        richness={min=200000, max=300000}, -- richness per resource spawn
        size={min=5, max=20},

        starting={richness=400000, size=3, probability=1},

        multi_resource_chance=0.20,
        multi_resource={
           ["coal"] = 4,
           ["uranium-ore"] = 1,
        }
    }
end

function loadResourceConfig()

    config={}

    fillVanillaConfig()

    return config
end