Code: [added] air count is copied when changing class [fixed?] modding-unfriendly isTileSolid was used for collapse block solidity testing. [fixed] approximate radius for polygon shapes was twice what it should be [added] Maths::Pi constant (how were we missing this??) [fixed] more dirt vulns on pressurecooker (people amaze me) [reverted] to old knightlogic to patch hitting issues

Hey FolksMinor Release, just a few fixes and additions. Should be out in the next 30min or so.I'm pushing this out in a relative hurry to revert to old behaviour for knight attacking - the new code allows attacking through doors in some instances, and the old code is more conservative, so I'm going with that. We'll look at a more robust solution soon.There's also a fix for a TDM exploit, an added scripting constant, more modder-friendly collapse behaviour and a fix for the radius being reported incorrectly for non-circular shapes. It's still an approximation, but it's now a correct approximation instead of twice what it should be.Also: your votes have been noticed - we'll be looking at the PixelOffset issues nextHave Fun,MaxFull Changelog: