84 lines
2.0 KiB
Lua
84 lines
2.0 KiB
Lua
-- This file is public domain. Created by Tangent, the fox, the legend.
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local update_after = function(self, delta)
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if self.run_time >= self.deadline then return true end
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self.run_time = self.run_time + delta
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if self.run_time >= self.deadline then
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if self.callback then
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self.callback(unpack(self.args))
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end
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return true
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end
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end
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local update_every = function(self, delta)
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self.run_time = self.run_time + delta
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while self.run_time >= self.interval do
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if self.callback then
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self.callback(unpack(self.args))
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end
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self.run_time = self.run_time - self.interval
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end
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end
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local timer_metatable = {
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__index = {
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get_run_time = function(self)
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return self.run_time
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end,
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reset = function(self, time)
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self.run_time = time or 0
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end,
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set_deadline = function(self, deadline)
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assert(self.deadline, "set_deadline() is only for timer.after() timers.")
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self.deadline = deadline
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end,
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set_interval = function(self, interval)
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assert(self.interval, "set_interval() is only for timer.every() timers.")
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self.interval = interval
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end,
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},
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}
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local timers = {}
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local new_timer = function(callback, update, ...)
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local timer = setmetatable({
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callback = callback,
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update = update,
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args = {...},
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run_time = 0,
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}, timer_metatable)
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timers[timer] = timer
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return timer
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end
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return {
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version = "v1.2.0",
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after = function(deadline, callback, ...)
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local timer = new_timer(callback, update_after, ...)
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timer.deadline = deadline
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return timer
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end,
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every = function(interval, callback, ...)
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local timer = new_timer(callback, update_every, ...)
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timer.interval = interval
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return timer
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end,
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update = function(delta)
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local expired = {}
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for timer in pairs(timers) do
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if not timer.manual then
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if timer:update(delta) then
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expired[timer] = true
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end
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end
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end
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for timer in pairs(expired) do
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timers[timer] = nil
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end
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return expired
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end,
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}
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