main.lua

--[[

 The main file required by LÖVE.  We do not use this for anything in
 LNVL except debugging, since we ship out LNVL as a library for
 other programs to use and not really an executable on its own.

 It reads an optional script filename from the command-line and
 loads that.  If none is given then it loads a simple example.

 The enter and backspace keys move back and forth through the text.

----]]

local LNVL = require("LNVL")
LNVL.Initialize()
LNVL.Debug.Log.trace("LNVL Version " .. tostring(LNVL.Version))

-- These globals exists to help test Context objects.
local keyword = [["Foo"]]
local password = [["LobbyWasHere"]]

function love.load(arguments)
    love.window.setMode(LNVL.Settings.Screen.Width, LNVL.Settings.Screen.Height)
    love.graphics.setBackgroundColor(LNVL.Color.Black)

    local dumpOnly = false

    for index,value in ipairs(arguments) do
        if value == "--dump-only" then
            dumpOnly = true
            table.remove(arguments, index)
        end
    end
    
    local extraData = LNVL.Context:new()
    extraData:add("password", password)

    -- This is for examples/20-StringInterpolation.lua
    extraData:add("ClosingRemark", "Have a wonderful day!")

    if #arguments > 1 then
        LNVL.LoadScript(arguments[2], extraData)
    else
        LNVL.LoadScript("examples/02-TwoCharacters.lua", extraData)
    end

    -- If we ran the test for temporary characters then we make sure
    -- the character defined in that script was destroyed at its
    -- conclusion.
    if arguments[2] == "examples/23-TemporaryCharacters.lua" then
        assert(LNVL.ScriptEnvironment["Lobby"] == nil)
    end

    if LNVL.Settings.DebugModeEnabled == true then
        LNVL.Debug.DumpScriptEnvironment()
    end

    LNVL.Debug.Log.trace("New password: " .. LNVL.ScriptEnvironment["password"])

    if dumpOnly == true then
        love.event.quit()
    end
end

function love.keypressed(key)
    if key == "return" then
        LNVL.Advance()
    elseif key == "backspace" then
        LNVL.CurrentScene:moveBack()
    end
end

function love.draw()
    LNVL.CurrentScene:draw()
end

function love.update(dt)
    LNVL.Graphics.DrawAndUpdate(dt)
end