Added two new materials, Titanium and plastitanium. Titanium is naturally occuring, and plastitanium is an alloy made of plasma and titanium.
These materials can be used to build shuttle walls and floors, though this serves no current purpose.
Before you yell "SNOWFLAKE" about the materials, I have definite planned purposes for them, not to mention what else they could be potentially used for (mechs, R&D, etc.)
You can use titanium to make white shuttle walls that smooth (like the ones of the escape shuttle), and plastitanium to make the grey syndie shuttle walls. You can also make floor tiles out of each material for the different shuttle floors. This PR itself doesn't change any of the paths on the map to use smoothed shuttlewalls and I'll save that for a seperate PR.
Also this PR makes ORM code better and allows people to easily add new alloys
Sprites by WJ
Added priority overlays to atoms, which will not be removed when overlays are cut and will always remain on top when new overlays are added. This requires everyone to use add_overlay() and cut_overlays() instead of overlays += and overlays.Cut(). These procs are found in __HELPERS/icons.dm, and the priority overlay list is found in game/atoms.dm. Everything else is replacing deprecated overlay manipulation.
Fixes graphical bug #14343 with extreme overkill. If the coin has an attached wire, it won't flip. Someone else might want to instead fix the animation so that the wire moves with the coin.
They're a novelty coin with a syndie helmet (valid) on one side and a salid (salid) on the other.
Found as a prize in arcade machines, Sec can also get one from their vendor as a premium item.
Reorganizes all flashing to use the same mob proc 'flash_eyes()' (welding tool use, flashbang, flashers, laserpointers, etc).
Fixes making sandstone not stacking the result sandstones on the floor.
Sandstone, grass tile and carpet tile now look for other incomplete stack on their creation location to try to put them all in one stack (exactly like wood planks).
Fix typos.
Remove banglet var from all flashbangs, making flashbangs from clusters behave exactly like the other ones.
Renames eyecheck()proc to check_eye_prot() and moves it to mob/living level, elso creates check_ear_prot() for checking ear protection.
Gibtonite and gibtonite deposit being triggered by an explosion is now correctly logged.
The explosion of the gibtonite deposit (outside of mining level of course) is now logged.
uraniummeltdown