jecs/demo/src/ReplicatedStorage/std/bt.luau

--!optimize 2
--!native

-- original author @centau

local SUCCESS = 0
local FAILURE = 1
local RUNNING = 2

local function SEQUENCE(nodes)
    return function(...)
        for _, node in nodes do
            local status = node(...)
            if status == FAILURE or status == RUNNING then
                return status
            end
        end
        return SUCCESS
    end
end

local function FALLBACK(nodes)
    return function(...)
        for _, node in nodes do
            local status = node(...)
            if status == SUCCESS or status == RUNNING then
                return status
            end
        end
        return FAILURE
    end
end

local bt = {
    SEQUENCE = SEQUENCE,
    FALLBACK = FALLBACK,
    RUNNING = RUNNING
}

return bt