Class: Livecode::Timer

Inherits:
Object
  • Object
show all
Defined in:
lib/livecode/timer.rb

Overview

Proc objects are also supported:

timer_proc = proc{puts "I'm a proc"}
timer2 = Timer.new(100, timer_proc)

Timer will try to compensate for the run time of your code in order to stay in sync.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(time, proc = nil, &block) ⇒ Timer

Returns a new instance of Timer.



22
23
24
25
26
27
28
29
30
31
 
# File 'lib/livecode/timer.rb', line 22

def initialize(time, proc=nil, &block)
	@time = time || 1
	if proc
		@proc = proc
	elsif block_given?
		@proc = block
	end
	@tread = nil
	start
end

Instance Attribute Details

#proc ⇒ Object

Returns the value of attribute proc.



20
21
22
 
# File 'lib/livecode/timer.rb', line 20

def proc
  @proc
end

#time ⇒ Object

Returns the value of attribute time.



20
21
22
 
# File 'lib/livecode/timer.rb', line 20

def time
  @time
end

Instance Method Details

#call ⇒ Object

Call the block



34
35
36
37
38
39
 
# File 'lib/livecode/timer.rb', line 34

def call
	Silenceable.apply(@proc) if @proc
	if @proc && !@proc.silenced?
		@proc.call
	end
end

#start ⇒ Object Also known as: run

Start the timer



42
43
44
45
46
47
48
49
50
51
52
53
54
 
# File 'lib/livecode/timer.rb', line 42

def start
	stop
	timer = self
	@thread = Thread.new do
		next_time = Time.now
		while true
			timer.call
			next_time += (timer.time.to_f / 1000)
			sleep_time = next_time - Time.now
			sleep(sleep_time) if sleep_time > 0
		end
	end
end

#stop ⇒ Object Also known as: clear, end

Stop the timer.



58
59
60
61
62
63
 
# File 'lib/livecode/timer.rb', line 58

def stop
	if @thread
		@thread.exit
		@thread = nil
	end
end