void MakeBondWith(Atomic otherAtom, Collision collision)
{
// calculate collision force. The amount determines energy required for bond order.
int bondEnergyOrder = BondOrderEnergy(collision.impulse);
// TODO is this a race condition for collision messages?
// Return if we've already bonded with this atom
if (this.bondedAtoms.ContainsKey(otherAtom))
{
Debug.Log("Already bonded to atom");
return;
}
// who wants more electrons based on electronegativity?
if (this.electronegativity > otherAtom.electronegativity)
{
// this atom wants to get electrons
// how many electrons can I recv and how many can other give?
if (this.ShareableHoles() > 0 && otherAtom.ShareableElectrons() > 0)
{
int bondOrder = Enumerable.Min(new int[] { bondEnergyOrder, this.ShareableHoles(), otherAtom.ShareableElectrons() });
CreateBond(bondOrder, otherAtom);
}
else
{
Debug.Log(string.Format("Want Get electron, but this.holes: {0} :: other: {1}", this.ShareableHoles(), otherAtom.ShareableElectrons()));
}
}
else if (this.electronegativity < otherAtom.electronegativity)
{
// this atom wants to give electrons
// how many electrons can I give and how many can other get?
if (this.ShareableElectrons() > 0 && otherAtom.ShareableHoles() > 0)
{
int bondOrder = Enumerable.Min(new int[] { bondEnergyOrder, this.ShareableElectrons(), otherAtom.ShareableHoles() });
CreateBond(bondOrder, otherAtom);
}
else
{
Debug.Log(string.Format("Want Give electron, but this.holes: {0} :: other: {1}", this.ShareableElectrons(), otherAtom.ShareableHoles()));
}
}
else
{
// both atoms have the same electronegativity
if (this.ShareableElectrons() > 0 && this.ShareableHoles() > 0 &&
otherAtom.ShareableElectrons() > 0 && otherAtom.ShareableHoles() > 0)
{
int bondOrder = 0;
// 2.3 just is an electronegativity boundary that seems to divide between
// those that want electrons vs those that give electrons
if (this.electronegativity > 2.3f)
{
// wants to get electrons
bondOrder = Enumerable.Min(new int[] { bondEnergyOrder, this.ShareableHoles(), otherAtom.ShareableElectrons() });
}
else
{
// wants to give electrons
bondOrder = Enumerable.Min(new int[] { bondEnergyOrder, this.ShareableElectrons(), otherAtom.ShareableHoles() });
}
CreateBond(bondOrder, otherAtom);
}
else
{
Debug.Log("no shareable electrons or holes in either atom");
}
}
}