Completable TR1 and UB levels

[vvs-]

I'll record the engine progress here. It reflects an average state, not necessarily the bleeding edge.

The levels which I was able to complete (sans enemies):

• Caves
• City of Vilcabamba ( #339, ~~#344~~ )
• Lost Valley ( #102, ~~#201~~, #407 )
• Tomb of Qualopec ( ~~#448~~ )
• St. Francis' Folly ( ~~#201~~, ~~#259~~ )
• Colosseum ( #449 )
• Palace Midas ( ~~#308~~, #449 )
• The Cistern ( ~~#99~~, ~~#340~~, ~~#343~~, ~~#388~~, #450 )
• Tomb of Tihocan ( ~~#102~~, ~~#308~~, ~~#343~~, #451 )
• City of Khamoon ( ~~#89~~, ~~#99~~, ~~#308~~, ~~#343~~ )
• Obelisk of Khamoon ( ~~#37~~, ~~#95~~, #102, #375, ~~#424~~ )
• Sanctuary of the Scion ( #231, ~~#308~~, ~~#453~~ )
• Natla's Mines ( ~~#9~~, #90, ~~#340~~, ~~#344~~, ~~#426~~ )
• Atlantis ( ~~#9~~, ~~#38~~, ~~#94~~, ~~#308~~, ~~#344~~, ~~#424~~, ~~#455~~, ~~#456~~ )
• The Great Pyramid ( ~~#9~~, ~~#201~~ )
• Return to Egypt ( #197 )
• Temple of the Cat ( ~~#9~~, #223, #449 )
• Atlantean Stronghold ( ~~#9~~, #38, #197 )
• The Hive ( ~~#9~~, #449, #458, #466 )

The levels which I tried but they can't be completed because of a bugs or unimplemented features:

• none at this point

Features that are needed for full functionality but currently not implemented:

• enemies' AI and pathfinding (partially implemented)
• enemy spawners (partially implemented)
• flame, lightning bolt and lava particle emitters
• some hardcoded animations and effects (mostly effects like gun flashes, smoke, bubbles, splash, ricochet, blood, explosions)
• flipeffects
• working GUI
• weapons (partially implemented)

[TeslaRus]

Palace Midas ( Midas' hand doesn't turn lead into gold ) fixed in ac90033