/// <summary>
/// Checks if a piece of food is of the type the creature prefers
/// </summary>
/// <param name="f">The piece of food to check</param>
/// <returns>If the piece of food is of the type the creature prefer</returns>
private bool foodIsPreferred(FoodSource f)
{
bool b = false;
if (f.isPlant() && diet * 2 <= 1)
{
b = true;
}
else if (!f.isPlant() && diet * 2 >= 1) //Both use >= / <= since omnivores shouldn't really have any preference
{
b = true;
}
else
{
b = false;
}
return b;
}
/// <summary>
/// Eats a piece of food only if it is of the type the creature prefers
/// </summary>
/// <param name="f"></param>
private void eatPreferred(FoodSource f)
{
if (foodIsPreferred(f))
{
eat(f);
}
else
{
randomAction();
}
}
/// <summary>
/// A public way to access getNourishmentAmt, used in debugging and testing
/// </summary>
public int pubGetNourishmentAmt(FoodSource f)
{
return getNourishmentAmt(f);
}
/// <summary>
/// Eats a piece of food and adjusts stamina, energy and the food itself as needed
/// </summary>
/// <param name="f">The foodsource to eat from</param>
public void eat(FoodSource f)
{
if (f == null)
{
randomAction();
}
else
{
if (isAdjacent(f))
{
if (stamina == maxStamina)
{
f.beEaten();
energy += getNourishmentAmt(f);
float ts = (float)stamina; //convert to float here to avoid minimise rounding errors
ts /= (100 / 50); //div 50 could be settable by Simulation (100 / x) where x == %age of stamina to drain
stamina = (int)ts;
}
else
{
//wait for stamina to increase
}
}
else
{
moveTowards(f);
}
}
}
/// <summary>
/// Gets how nourishing a given FoodSource is, by applying the multiplication that will
/// be applied to the food based on diet when it is eaten
/// </summary>
/// <param name="f">The foodsource to look</param>
/// <returns>The energy the creature would get if it ate the foodsource</returns>
private int getNourishmentAmt(FoodSource f)
{
double ret = 0;
if (f.isPlant())
{
double inverseDiet = 1 - diet;
ret = f.getFoodValue() * inverseDiet;
}
else
{
ret = f.getFoodValue() * diet;
}
return (int)ret;
}
