mirror of
https://github.com/bjornbytes/lovr.git
synced 2024-07-08 23:23:38 +00:00
240 lines
6.8 KiB
Lua
240 lines
6.8 KiB
Lua
lovr = require 'lovr'
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local function nogame()
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function lovr.conf(t)
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t.headset.supersample = true
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t.modules.audio = false
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t.modules.physics = false
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t.modules.thread = false
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end
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local models = {}
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function lovr.load()
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print(string.format('LÖVR %d.%d.%d\nNo game', lovr.getVersion()))
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lovr.event.quit()
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end
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function lovr.draw()
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--
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end
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end
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-- Note: Cannot be overloaded
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function lovr.boot()
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local conf = {
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version = '0.15.0',
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identity = 'default',
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saveprecedence = true,
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modules = {
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audio = true,
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data = true,
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event = true,
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graphics = true,
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headset = true,
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math = true,
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physics = true,
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system = true,
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thread = true,
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timer = true
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},
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audio = {
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start = true,
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spatializer = nil
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},
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graphics = {
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debug = false,
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vsync = false
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},
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headset = {
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drivers = { 'openxr', 'webxr', 'desktop' },
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supersample = false,
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offset = 1.7,
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msaa = 4,
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overlay = false
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},
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math = {
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globals = true
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},
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window = {
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width = 800,
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height = 600,
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fullscreen = false,
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resizable = false,
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title = 'LÖVR',
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icon = nil
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}
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}
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lovr.filesystem = require('lovr.filesystem')
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local main = arg[0] and arg[0]:match('[^\\/]-%.lua$') or 'main.lua'
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local hasConf, hasMain = lovr.filesystem.isFile('conf.lua'), lovr.filesystem.isFile(main)
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if not lovr.filesystem.getSource() or not (hasConf or hasMain) then nogame() end
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-- Shift args up in fused mode, instead of consuming one for the source path
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if lovr.filesystem.isFused() then
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for i = 1, #arg + 1 do
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arg[i] = arg[i - 1]
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end
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arg[0] = lovr.filesystem.getSource()
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end
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local confOk, confError = true
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if hasConf then confOk, confError = pcall(require, 'conf') end
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if confOk and lovr.conf then confOk, confError = pcall(lovr.conf, conf) end
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lovr._setConf(conf)
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lovr.filesystem.setIdentity(conf.identity, conf.saveprecedence)
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for module in pairs(conf.modules) do
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if conf.modules[module] then
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local ok, result = pcall(require, 'lovr.' .. module)
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if not ok then
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print(string.format('Warning: Could not load module %q: %s', module, result))
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else
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lovr[module] = result
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end
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end
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end
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if lovr.system and conf.window then
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lovr.system.openWindow(conf.window)
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end
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if lovr.graphics then
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lovr.graphics.init()
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end
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if lovr.headset and lovr.graphics and conf.window then
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lovr.headset.start()
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end
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lovr.handlers = setmetatable({}, { __index = lovr })
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if not confOk then error(confError) end
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if hasMain then require(main:gsub('%.lua$', '')) end
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return lovr.run()
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end
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function lovr.run()
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if lovr.timer then lovr.timer.step() end
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if lovr.load then lovr.load(arg) end
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return function()
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if lovr.event then
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lovr.event.pump()
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for name, a, b, c, d in lovr.event.poll() do
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if name == 'restart' then
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local cookie = lovr.restart and lovr.restart()
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return 'restart', cookie
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elseif name == 'quit' and (not lovr.quit or not lovr.quit(a)) then
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return a or 0
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end
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if lovr.handlers[name] then lovr.handlers[name](a, b, c, d) end
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end
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end
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local dt = 0
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if lovr.timer then dt = lovr.timer.step() end
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if lovr.headset then dt = lovr.headset.update() end
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if lovr.update then lovr.update(dt) end
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if lovr.graphics then
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local headset = lovr.headset and lovr.headset.getTexture()
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if headset then
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local pass = lovr.graphics.getPass('render', headset)
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for i = 1, lovr.headset.getViewCount() do
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pass:setViewPose(i, lovr.headset.getViewPose(i))
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pass:setProjection(i, lovr.headset.getViewAngles(i))
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end
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local skip = lovr.draw and lovr.draw(pass)
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if not skip then lovr.graphics.submit(pass) end
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end
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if lovr.system.isWindowOpen() then
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lovr.mirror(pass)
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end
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end
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if lovr.headset then lovr.headset.submit() end
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if lovr.math then lovr.math.drain() end
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end
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end
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function lovr.mirror(pass)
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if lovr.headset then
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--
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else
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local pass = lovr.graphics.getPass('render', 'window')
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local skip = lovr.draw and lovr.draw(pass)
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if not skip then lovr.graphics.submit(pass) end
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end
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end
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local function formatTraceback(s)
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return s:gsub('\n[^\n]+$', ''):gsub('\t', ''):gsub('stack traceback', '\nStack')
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end
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function lovr.errhand(message, traceback)
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message = tostring(message)
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message = message .. formatTraceback(traceback or debug.traceback('', 4))
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print('Error:\n' .. message)
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return function() return 1 end
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end
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function lovr.threaderror(thread, err)
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error('Thread error\n\n' .. err, 0)
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end
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function lovr.log(message, level, tag)
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message = message:gsub('\n$', '')
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print(message)
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end
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-- This splits up the string returned by luax_getstack so it looks like the error message plus the string from
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-- debug.traceback(). This includes splitting on the newline before 'stack traceback:' and appending a newline
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local function splitOnLabelLine(s, t)
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local at = s:reverse():find(t:reverse())
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if at then
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local slen = #s
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at = (#s - at - #t + 2)
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return s:sub(1, at-2), s:sub(at,slen) .. '\n'
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else
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return s, ''
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end
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end
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-- lovr will run this function in its own coroutine
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return function()
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local errored = false -- lovr.errhand may only be called once
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local function onerror(e, tb) -- wrapper for errhand to ensure it is only called once
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local function abortclean()
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return 1
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end
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if not errored then
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errored = true
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return lovr.errhand(e, tb) or abortclean
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else
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print('Error occurred while trying to display another error:\n' ..
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tostring(e) .. formatTraceback(tb or debug.traceback('', 2)))
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return abortclean
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end
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end
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-- Executes lovr.boot and lovr.run.
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-- continuation, afterward, will be either lovr.run's per-frame function, or the result of errhand.
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local _, continuation = xpcall(lovr.boot, onerror)
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while true do
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if type(continuation) == 'string' then -- LuaJIT returns a fixed string if an error occurs in an xpcall error handler
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print('Error occurred while trying to display another error: ' .. continuation)
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return 1
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end
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local ok, result, extra = xpcall(continuation, onerror)
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if result and ok then return result, extra -- Result is value returned by function. Return it.
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elseif not ok then continuation = result end -- Result is value returned by error handler. Make it the new error handler.
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local externerror = coroutine.yield() -- Return control to C code
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if externerror then -- A must-report error occurred in the C code
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local errorpart, tracepart = splitOnLabelLine(externerror, 'stack traceback:')
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continuation = onerror(errorpart, tracepart) -- Switch continuation to lovr.errhand
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end
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end
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end
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