[h.sie]

@UltimaGecko: Thanks again for your detailed answer. To be honest: Internally, LGN1's and my model of course still has to use the CO2-system of sh3, but we added a non-renewable CO2 component to it.

From these two internal CO2 components - the non-renewable and the renewable one, we simply calculate two O2 values (for cosmetic reasons only), which are displayed/available for the player (because for me, an O2 value of 20% is much more comprehensible than a CO2 value of 1%). This is not correct, I know, since O2 and CO2 are not 100% correlated. But there is no other (simple) solution.

So if we decide to switch back from O2 to CO2, the internal model and the gameplay won't change at all. We'll only get CO2 values displayed instead of O2 values. We can make a user poll: Do you want CO2 displayed or O2? But it has no effect on gameplay.

The only thing we can change is the balance between renewable and non-renewable component.

Modelling CO2 AND O2 independently from each other would require a huge effort.

You seem to be scientist with a huge standard. But this is still a game - no simulator. My patches won't change that situation. I cannot offer an exact model of the reality, I can only offer a coarse approximation.

Please keep in mind: I don't have the SDK, so I have to program in Assembler, not in a high-level language like C++.

h.sie