allow sprite variation in lamp

[gheift]

Please allow multiple sprites in the lamp prototype, these can then be selected with entity.graphics_variation like with the simple-entity:

Code: Select all

data:extend{{
    name = "my-lamp",
    type = "lamp",
    pictures_on = {
        { filename = "__mod__/graphic/sprite-on-1.png", width = 32, height = 32, },
        { filename = "__mod__/graphic/sprite-on-2.png", width = 32, height = 32, },
    },
    pictures_off = {
        { filename = "__mod__/graphic/sprite-off-1.png", width = 32, height = 32, },
        { filename = "__mod__/graphic/sprite-off-2.png", width = 32, height = 32, },
    },
    -- ...
}}

Thanks,
Gerhard