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Remove backend system and ctruLua support

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Since I only use the LÖVE backend anyway, this simplifies the code.
Tidied some code.
This commit is contained in:
Étienne Fildadut 2021-07-18 19:30:43 +02:00
parent 9f4c03a136
commit 4b75f21e52
17 changed files with 663 additions and 1067 deletions
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43
signal/backend/love.lua
View file

@ -1,43 +0,0 @@
local signal = require((...):match("^(.-%.)backend").."signal")
function signal.registerEvents()
local callbacks = { -- everything except run, errorhandler, threaderror
"displayrotated", "draw", "load", "lowmemory", "quit", "update",
"directorydropped", "filedropped", "focus", "mousefocus", "resize", "visible",
"keypressed", "keyreleased", "textedited", "textinput",
"mousemoved", "mousepressed", "mousereleased", "wheelmoved",
"gamepadaxis", "gamepadpressed", "gamepadreleased",
"joystickadded", "joystickaxis", "joystickhat", "joystickpressed", "joystickreleased", "joystickremoved",
"touchmoved", "touchpressed", "touchreleased"
}
local event = signal.event
for _, callback in ipairs(callbacks) do
if callback == "update" then
if love[callback] then
local old = love[callback]
love[callback] = function(dt)
old(dt)
event:emit(callback, dt)
end
else
love[callback] = function(dt)
event:emit(callback, dt)
end
end
else
if love[callback] then
local old = love[callback]
love[callback] = function(...)
old(...)
event:emit(callback, ...)
end
else
love[callback] = function(...)
event:emit(callback, ...)
end
end
end
end
end
return signal

15
signal/init.lua
View file

@ -1,14 +1 @@
local signal
local p = ...
if love then
signal = require(p..".backend.love")
elseif package.loaded["ctr"] then
error("NYI")
elseif package.loaded["libretro"] then
error("NYI")
else
error("no backend for ubiquitousse.signal")
end
return signal
return require((...)..".signal")

54
signal/signal.can
View file

@ -2,11 +2,9 @@
let registry_mt = {
--- Map of signals to list of listeners.
-- @impl ubiquitousse
signals = {},
--- Bind one or several functions to a signal name.
-- @impl ubiquitousse
bind = :(name, fn, ...)
if not @signals[name] then
@signals[name] = {}
@ -18,7 +16,6 @@ let registry_mt = {
end,
--- Unbind one or several functions to a signal name.
-- @impl ubiquitousse
unbind = :(name, fn, ...)
if not @signals[name] then
return
@ -34,13 +31,11 @@ let registry_mt = {
end,
--- Remove every bound function to a signal name.
-- @impl ubiquitousse
unbindAll = :(name)
@signals[name] = nil
end,
--- Replace a bound function with another function.
-- @impl ubiquitousse
replace = :(name, sourceFn, destFn)
if not @signals[name] then
@signals[name] = {}
@ -54,13 +49,11 @@ let registry_mt = {
end,
--- Remove every bound function to every signal.
-- @impl ubiquitousse
clear = :()
@signals = {}
end,
--- Emit a signal, i.e. call every function bound to it, with the given arguments.
-- @impl ubiquitousse
emit = :(name, ...)
if @signals[name] then
for _, fn in ipairs(@signals[name]) do
@ -74,13 +67,11 @@ registry_mt.__index = registry_mt
let signal = {
--- Creates and return a new SignalRegistry.
-- A SignalRegistry is a separate ubiquitousse.signal instance: its signals will be independant from other registries.
-- @impl ubiquitousse
new = ()
return setmetatable({ signals = {} }, registry_mt)
end,
--- Global SignalRegistry.
-- @impl ubiquitousse
signals = {},
bind = (...)
return registry_mt.bind(signal, ...)
@ -102,13 +93,50 @@ let signal = {
-- * update(dt), should be called on every game update
-- * draw, should be called on every game draw
-- * for LÖVE, there are callbacks for every LÖVE callback function that need to be called on their corresponding LÖVE callback
-- @impl mixed
event = nil,
--- Call this function to hook signal.event signals to the current backend.
-- For LÖVE, this means overriding every existing LÖVE callback. If a callback is already defined, the new one will call the old function along with the signal:emit.
-- @impl backend
registerEvents = () end
-- @impl love
registerEvents = ()
local callbacks = { -- everything except run, errorhandler, threaderror
"displayrotated", "draw", "load", "lowmemory", "quit", "update",
"directorydropped", "filedropped", "focus", "mousefocus", "resize", "visible",
"keypressed", "keyreleased", "textedited", "textinput",
"mousemoved", "mousepressed", "mousereleased", "wheelmoved",
"gamepadaxis", "gamepadpressed", "gamepadreleased",
"joystickadded", "joystickaxis", "joystickhat", "joystickpressed", "joystickreleased", "joystickremoved",
"touchmoved", "touchpressed", "touchreleased"
}
local event = signal.event
for _, callback in ipairs(callbacks) do
if callback == "update" then
if love[callback] then
local old = love[callback]
love[callback] = function(dt)
old(dt)
event:emit(callback, dt)
end
else
love[callback] = function(dt)
event:emit(callback, dt)
end
end
else
if love[callback] then
local old = love[callback]
love[callback] = function(...)
old(...)
event:emit(callback, ...)
end
else
love[callback] = function(...)
event:emit(callback, ...)
end
end
end
end
end
}
signal.event = signal.new()