lib/xi/clock.rb in xi-lang-0.1.0 vs lib/xi/clock.rb in xi-lang-0.1.2

@@ -5,11 +5,11 @@
 Thread.abort_on_exception = true
 
 module Xi
   class Clock
     DEFAULT_CPS  = 1.0
-    INTERVAL_SEC = 10 / 1000.0
+    INTERVAL_SEC = 20 / 1000.0
 
     def initialize(cps: DEFAULT_CPS)
       @mutex = Mutex.new
       @cps = cps
       @playing = true
@@ -39,10 +39,14 @@
 
     def stopped?
       !playing?
     end
 
+    def now
+      Time.now.to_f * cps
+    end
+
     def play
       @mutex.synchronize { @playing = true }
       self
     end
     alias_method :start, :play
@@ -50,9 +54,17 @@
     def stop
       @mutex.synchronize { @playing = false }
       self
     end
     alias_method :pause, :play
+
+    def seconds_per_cycle
+      @mutex.synchronize { 1.0 / @cps }
+    end
+
+    def at(cycle_pos)
+      Time.at(cycle_pos * seconds_per_cycle)
+    end
 
     def inspect
       "#<#{self.class.name}:#{"0x%014x" % object_id} cps=#{cps.inspect} #{playing? ? :playing : :stopped}>"
     end