Also add GameSave::PressureInTmp3 to check for elements with pressure memory and fix TUNG not sampling pressure on creation. This does not in itself fix#822 because tmp3 and tmp4 are still saved in 16 bits each, so full ctypes still don't fit in tmp3.
The rest will will in a commit soon that adds the Create event and some other stuff
Lua events will come after that
PLSM default temp lowered to MAX_TEMP
PSTN, CRAY, and possibly some others will need to be modified to account for this without breaking saves. The save format will need to include PMAPBITS and adjust properly
Also add some new FILT modes, and make FILT modes affect BIZR and
BRAY colour in the same way as they affect photon colour. Photons
passing next to DTEC will set the colour of all FILT in a straight
line starting from any FILT adjacent to the DTEC (a bit like an
ARAY beam), and the exact colour of the photon will be used for
FILT interactions instead of the colour based on temperature.
FILT tmp=4: red shift, tmp=5: blue shift. Size of shift determined
by FILT temperature. tmp=6: FILT has no effect on photon colour
(possible before by using invalid tmp modes, but here's a supported
method of doing it. Invalid tmp modes should be automatically replaced
in existing saves).
Also, FILT mode is now described in the HUD.
