simple.rb in cell_cycle-0.1.1

- old
+ new

@@ -4,12 +4,11 @@
 # (A_phase, S_phase, Cdc20A). A_phase is the phase when the cell cycle enzyme
 # machinery is synthesized. S_phase has the standard meaning: DNA synthesis
 # phase. Cdc20A represents the APC (Anaphase Promoting Complex). When present,
 # it degrades the cell cycle enzyme machinery.
 
-require 'y_nelson' and include YNelson
-require 'sy'
+require 'cell_cycle'
 
 # Constants that control the cell cycle settings.
 S_phase_duration = 12.h
 S_phase_start = 5.h
 S_phase_end = S_phase_start + S_phase_duration
@@ -48,10 +47,10 @@
 A_phase = Place m!: 0
 S_phase = Place m!: 0
 Cdc20A = Place m!: 1
 
 # Include them in the CELL_CYCLE net.
-CELL_CYCLE = Net() << Timer << Clock << A_phase << S_phase << Cdc20A
+CELL_CYCLE << Timer << Clock << A_phase << S_phase << Cdc20A
 
 # Assignment transitions that control the state of the places A_phase, S_phase
 # and Cdc20A.
 # 
 A_phase_ϝ = Transition assignment: -> t { t > Aα && t < Aω ? 1 : 0 },