tasks a-s

Task/Queue-Definition/Lua/queue-definition.lua

@@ -0,0 +1,25 @@
+Queue = {}
+
+function Queue.new()
+    return { first = 0, last = -1 }
+end
+
+function Queue.push( queue, value )
+    queue.last = queue.last + 1
+    queue[queue.last] = value
+end
+
+function Queue.pop( queue )
+    if queue.first > queue.last then
+        return nil
+    end
+
+    local val = queue[queue.first]
+    queue[queue.first] = nil
+    queue.first = queue.first + 1
+    return val
+end
+
+function Queue.empty( queue )
+    return queue.first > queue.last
+end