lyra-engine/examples/testbed/scripts/test.lua

function on_init()
    local cube = world:request_res("assets/cube-texture-embedded.gltf")
    print("Loaded textured cube")

    local pos = Transform.from_translation(Vec3.new(0, 0, -8.0))

    local e = world:spawn(pos, cube)
    print("spawned entity " .. tostring(e))

    local handler = ActionHandler.new {
        layouts = { 0 },
        actions = {
            MoveForwardBackward = "Axis",
            MoveLeftRight = "Axis",
            MoveUpDown = "Axis",
            LookLeftRight = "Axis",
            LookUpDown = "Axis",
            LookRoll = "Axis",
            ObjectsMoveUpDown = "Axis"
        },
        mappings = {
            {
                layout = 0,
                binds = {
                    MoveForwardBackward = {
                        "key:w=1.0", "key:s=-1.0"
                    },
                    MoveLeftRight = {
                        "key:a=-1.0", "key:d=1.0"
                    },
                    MoveUpDown = {
                        "key:c=1.0", "key:z=-1.0"
                    },
                    LookLeftRight = {
                        "key:left=-1.0", "key:right=1.0",
                        "mouse:axis:x"
                    },
                    LookUpDown = {
                        "key:up=-1.0", "key:down=1.0",
                        "mouse:axis:y",
                    },
                    LookRoll = {
                        "key:e=-1.0", "key:q=1.0",
                    },
                    ObjectsMoveUpDown = {
                        "key:u=1.0", "key:j=-1.0"
                    }
                }
            }
        }
    }

    world:add_resource(handler)
end

--[[ function on_first()
    print("Lua's first function was called")
end

function on_pre_update()
    print("Lua's pre-update function was called")
end ]]

function on_update()
    ---@type number
    local dt = world:resource(DeltaTime)
    local act = world:resource(ActionHandler)
    ---@type number
    local move_objs = act:get_axis("ObjectsMoveUpDown")

    world:view(function (t)
        if move_objs ~= nil then
            t:translate(0, move_objs * 0.35 * dt, 0)
            return t
        end
    end, Transform)
end

--[[ function on_post_update()
    print("Lua's post-update function was called")
end

function on_last()
    print("Lua's last function was called")
end ]]