Code: Select all
-- main.lua
local callbacks = {} -- hide this table in this lexical scope.
function register( cb )
table.insert( callbacks, cb )
end
function deregister( cb )
for i = 1, #callbacks do
if callbacks[i] == cb then
table.remove( callbacks[i] )
break
end
end
end
function love.update(dt)
local cblist = {} -- for safe usage with deregister function
for _, cb in ipairs(callbacks) do
table.insert(cblist, cb)
end
for _, cb in ipairs(cblist) do
cb(dt)
end
end
Code: Select all
-- movement.lua
movement = { clock = 0 }
function movement.update(dt)
movement.clock = movement.clock + dt
if movement.clock > 5 then
print( "5 Seconds have passed" )
deregister( movement.update )
end
end
register( movement.update )
Code: Select all
--THIS IS BAD PRACTICE
--movement.lua
function love.load()
--code
end
function love.update()
--code
end
function love.draw()
--code
end
--THIS IS GOOD PRACTICE
--main.lua <- don't move things out to separate files unless you need to
movement={}
function movement:load()
--code
end
function movement:update(dt) --its will probably help somewhere along the lines to pass a timestep argument to your update function
--code
end
function movement:draw()
--code
end