#!/usr/bin/env python3

# -*- coding: utf-8 -*-

#-------------------------------------------------------------------------------

#

# temp.py -- random experiments, prototype code

#

# MIT License -- Copyright © 2023 Craig Reynolds

#

#-------------------------------------------------------------------------------

import math

import Utilities as util

from Vec3 import Vec3

from LocalSpace import LocalSpace

from Agent import Agent

# TODO 20230827 logistic function

# Taken from https://en.wikipedia.org/wiki/Logistic_function

def logistic(x, k, L, x0):

return L / (1 + math.exp(-k * (x - x0)))

def unit_sigmoid(x):

return logistic(x / 10, 10, 1, 0)

def unit_sigmoid_on_01(x):

# return logistic((x - 10) / 10, 10, 1, 0) + 0.5

# return logistic((x - 10) / 10, 10, 1, 0) + 1

# return logistic((x - 10) / 10, 10, 1, 0) + 0.5

# return logistic((x + 10) / 10, 10, 1, 0)

w = 12

# return logistic(x / (w * 2), w, 1, 0.5)

return logistic(x, w, 1, 0.5)

if __name__ == "__main__":

# hr = 10

# for i in range(-hr, hr+1):

# # print(i, logistic(i, 1, 1, 0))

# # print(i, logistic(i / 10, 10, 1, 0))

# # print(i, unit_sigmoid(i))

# print(i, unit_sigmoid_on_01(i))

for i in range(0, 101):

x = i / 100

print(x, unit_sigmoid_on_01(x))