*** Evolution ***

MODEL
-----
  The simulation is based on classical model of Game of Life (J.H.Conway).
World is simulated by grid, empty field means there is nothing, occupied
fields means there is a cell. Game of Life has simple rules:
1. cell dies when it has less than 2 neighbours (loneliness)
2. cell dies when it has more than 3 neighbours (overpopulation)
3. cell survives if it has 2-3 neighbours
4. new cell is created on empty field if it has exactly 3 neighbours
   (ideal conditions)

MODIFICATION EVOLUTION
----------------------
  Classic use is to design some structure and then observe how it develops.
Since I'm lazy I decided to try for the life to develop on it's own. For
this I slightly modified the rules:
1. Game begins in completely empty field
2. Each turn there is fixed number of mutations - on random fields new
   cell is created (it usually dies out from loneliness)

  Optimally the experiment would run on infinite playground. As this is not
possible I decided to connect left/right and top/down border (torus
topology).
  The idea of this experiment is that in time some cells will be created
near to each other giving chance for new life to begin and evolve. But the
mutations will also affect existing life destroying or modifying existing
structures allowing evolution.

CONTROLS
--------
Simulation runs on 400x300 field. It asks for following parameters:
1. Number of mutations (per turn)
 - bigger number means bigger chance of life but also bigger instability
 - I recommend values >70, interesting values are around 100
 - values <50 will usually take very long time for life to appear
 - pessimists will enter "3" and let it run during night (should you get
   something please send me the results and go play Loto or Poker)
2. Random Seed
 - seed for generating pseudo-random numbers
 - you can leave it empty and it will be set from time
 - if you want to reproduce previous experiment you can use the same seed
   as was used then

SPACE - pause / run simulation
ESC   - quit simulation

INFO
----
 - red cells are created from mutation
 - green cells are created by reproduction (these are considered "alive")
 Simulation runs quickly until life is created. When there is life the
 simulation slows down so that you can observe it. On upper left corner
 you can check following information:

SIZE - size of play-field
TURN - simulation turn
CELLS - number of alive cells
1STLIFE - turn when first alive cell was created
MUTAT - number of mutations per turn
SEED - random seed, write it down if you want to reproduce the experiment

FEW INTERESTING SIMULATIONS
---------------------------
Mutat=200, Seed=1291839727
  Despite big Mutat the life has problems to take root. It is repeatedly
created and destroyed until it manages around turn 4700.

Mutat=50, Seed=1291840117
  Despite small Mutat small island of stable life is created soon and
life starts to bloom around turn 2800.

Mutat=100, Seed=1291845650
  The life has problems to emerge. When it looks like it will take hold
around turn 6500-6800 the complex structure is gradually destroyed. The
life emerges later on different place.