Fear Factor

In the formulae below:

distance = Distance between the predator (the player or another animal) and the prey animal.
range = Predator's detection range (detectRange value), which can be reduced by taking Predatory Instincts.
fear = Prey's fear factor (fearFactor value).

A prey will be put on alert if: $𝑑 𝑖 𝑠 𝑡 𝑎 𝑛 𝑐 𝑒 < (𝑟 𝑎 𝑛 𝑔 𝑒 \times 𝑓 𝑒 𝑎 𝑟)$

The prey's alertness towards a predator is assigned each tick according to the following formula:

$𝑎 𝑙 𝑒 𝑟 𝑡 𝑛 𝑒 𝑠 𝑠 = 𝑎 𝑙 𝑒 𝑟 𝑡 𝑛 𝑒 𝑠 𝑠 + \frac{{𝑟 𝑎 𝑛 𝑔 𝑒}^{2} - {𝑑 𝑖 𝑠 𝑡 𝑎 𝑛 𝑐 𝑒}^{2}}{{𝑟 𝑎 𝑛 𝑔 𝑒}^{2}} \times 50$

If $𝑎 𝑙 𝑒 𝑟 𝑡 𝑛 𝑒 𝑠 𝑠 \geq 100$ the prey will flee. Default alertness to predators may be hard coded currently.