config.py

from os import environ
from distutils import util
sbool = util.strtobool
get = environ.get

# Important general config
MAX_T = float(get("MAX_T", 200)) # Maximum simulation time
SEED = int(get("SEED", 1234567890)) # Random seed
ALPHA = float(get("ALPHA", .33)) # How many units of sugar regrow per timestep (1.0 unit of time)
ROWS = int(get("ROWS", 50)) # Landscape rows
COLUMNS = int(get("COLUMNS", 50)) # Landscape columns
AGENTS = int(get("AGENTS", 400)) # Initial agent population size
MAX_POSSIBLE_SUGAR = int(get("MAX_POSSIBLE_SUGAR", 5)) # Maximum possible sugar capacity per cell
MAX_HEIGHT = int(get("MAX_HEIGHT", 4)) # Maximum cell height
PAUSE = sbool(get("PAUSE",  "False")) # Pause after every event
REPRODUCTION_LAMBDA = float(get("REPRODUCTION_LAMBDA", 0.175)) # Random expovariate lambda value when deciding reproduction event time
FERTILE_AGE = float(get("FERTILE_AGE", 1.6)) # Minimum time age mothering Agents can reproduce
GESTATION_MU = float(get("GESTATION_MU", 1)) # Mean gestation period length (normal distribution)
GESTATION_SIGMA = float(get("GESTATION_SIGMA", .5)) # Std Deviation of gestation period length distribution
MEAN_MAX_AGE = float(get("MEAN_MAX_AGE", 30)) # Mean maximum age, max age is randomly chosen from a gaussian distribution
SIGMA_MAX_AGE = float(get("SIGMA_MAX_AGE", 10)) # Maximum age gaussian distribution standard distribution
# Visual general config
SHOW_ANIMATION = sbool(get("SHOW_ANIMATION", "False")) # Show visual of every event -- slower simulation
SHOW_FINAL_COMPARISON = sbool(get("SHOW_FINAL_COMPARISON", "False")) # Show visual comparison of initial state vs final state
SHOW_SUGAR = sbool(get("SHOW_SUGAR", "False")) # Show sugar in visual
SHOW_TERRAIN = sbool(get("SHOW_TERRAIN", "False")) # Show cell heights in a separate visual
# Plot general config
SHOW_PLOTS = sbool(get("SHOW_PLOTS", "False")) # Show the plot of various statistics at the end
PLOTS = get("PLOTS", "wealth,population") # Comma-separated list of plots to show
# Specific visual chars config
AGENT_HEALTHY_CHAR = get("AGENT_HEALTHY_CHAR", "O") # Agent with sugar > metabolic rate
AGENT_CRITICAL_CHAR = get("AGENT_CRITICAL_CHAR", "o") # Agent with sugar <= metabolic rate
SUGAR_0_CHAR = get("SUGAR_0_CHAR", "․") # Sugar at (0, 25)% max height
SUGAR_1_CHAR = get("SUGAR_1_CHAR", "⁚") # Sugar at [25, 50)% max height
SUGAR_2_CHAR = get("SUGAR_2_CHAR", "⁝") # Sugar at [50, 75)% max height
SUGAR_3_CHAR = get("SUGAR_3_CHAR", "⁞") # Sugar at [75, 100]% max height
TERR_0_CHAR = get("TERR_0_CHAR", "▁") # Cell at [0, 25)% max height
TERR_1_CHAR = get("TERR_1_CHAR", "▃") # Cell at [25, 50)% max height
TERR_2_CHAR = get("TERR_2_CHAR", "▅") # Cell at [50, 75)% max height
TERR_3_CHAR = get("TERR_3_CHAR", "▇") # Cell at [75, 100%] max height