// in this case, the creature amount dropped to a dangerous 9 at one point.
// the final creatures all evolved their speed to between 1-2

// NOTE: creatures started randomly, speed from 0 to 1
const FOOD_SCARCITY = 0.2
const ENERGY_TO_REPRODUCE = 20;

const STARTING_ENERGY = 10;
const ENERGY_TO_MOVE = 0.2;
const ENERGY_FROM_FOOD = 1;

const MUTATION_RATE = 0.2;
const MUTATE_MAX = 0.3;

// in this case, the creatures never dropped below 100.
// their speed all evolved past 0.5, but only 20% evolved above 1

// NOTE: creatures started randomly, speed from 0 to 1
const FOOD_SCARCITY = 0.2
const ENERGY_TO_REPRODUCE = 20;

const STARTING_ENERGY = 10;
const ENERGY_TO_MOVE = 0.5;
const ENERGY_FROM_FOOD = 5;

const MUTATION_RATE = 0.2;
const MUTATE_MAX = 0.3;

// with this setup, even when 
// const FOOD_SCARCITY = 0.1
// the creatures survived and thrived.
// Their speed ended up a very even spread between 0-1

// Their number became a very slow and fluctuating climb,
// it must have taken thousands of turns.
// In the end it never got to a point of explosive growth,
// maybe because the maximal speed is within a very fine interval,
// and the mutation makes it too volatile to stay in there.

// Interestingly, in this case food scarcity dropping
// ended up encouraging more diverse tactics.
// while speed gets you more food,
// it also spends more energy.
// crawling slowly to find food is equally viable.

// When the same setup was tested with 
// creatures started randomly, speed from 0 to _10_,
// the speed converged around 3-4.

const FOOD_SCARCITY = 0.1 // possibility of food existing on one unit of distance
const ENERGY_TO_REPRODUCE = 20;

const STARTING_ENERGY = 10;
const ENERGY_TO_MOVE = 0.5;
const ENERGY_FROM_FOOD = 10;

const MUTATION_RATE = 0.2;
const MUTATE_MAX = 0.3;
const SPEED_MIN = 0.1;

// Creatures start between 0 to 10

// This setup yields faster creatures.
// If you decrease food scarcity,
// you can raise energy from food by the same ratio
// to encourage faster creatures.