internal bool Approach(Animal who, IWithMass to, TimeSpan elapsed)
{
float xMoveAmount = 0;
float yMoveAmount = 0;
var multiplier = (float)(who.MovementSpeed * elapsed.TotalSeconds);
if (who.Mass.PosX <= to.Mass.PosX)
{
xMoveAmount = 1 * multiplier;
}
else
{
xMoveAmount = -1 * multiplier;
}
if (who.Mass.PosY <= to.Mass.PosY)
{
yMoveAmount = 1 * multiplier;
}
else
{
yMoveAmount = -1 * multiplier;
}
return(SetNewPosition(who, xMoveAmount, yMoveAmount));
}
internal float Distance(IWithMass a, IWithMass b)
{
return(Distance(a.Mass.PosX, a.Mass.PosY, b.Mass.PosX, b.Mass.PosY));
}
internal bool IsEnoughCloseToInteract(Animal who, IWithMass withWho)
{
return(who.Mass.Intersects(withWho.Mass));
}
