A small part of the inventory refactor for journey to hawkthorne -bucketh3ad

InventoryRefactorB&A

BEFORE:
function Inventory:keypressed( button )
    if self:isOpen() then
        if button == 'SELECT' then
            self:close()
        end
        if button == 'RIGHT' then
            self:right()
        end
        if button == 'LEFT' then
            self:left()
        end
        if button == 'UP' then
            self:up()
        end
        if button == 'DOWN' then
            self:down()
        end
        if button == 'ATTACK' then
            self:select()
        end
    end
end


AFTER:
---
-- Handles player input while in the inventory
-- @return nil
function Inventory:keypressed( button )
    local keys = {
        RIGHT = self.right,
        LEFT = self.left,
        UP = self.up,
        DOWN = self.down,
        ATTACK = self.select,
        SELECT = self.close
    }
    if self:isOpen() and keys[button] ~= nil then keys[button]() end
end