add vapor colour to items
add vapor density to items
pass vapor info to projectile
add particle object
store a list of particles in the tile
have the projectile add particle effects as it moves
add square function to fmath
add transparency lookup tables for particle effects
cache a LUT pointer in the map
bring it on home - draw particles on the map
Fix compiler
Fix compiler
fix throwing
underwater smoke
fire is hard to move through underwater

don't ask me, it just is.
palette hax
fix tile height
Cleanup
Y goes down, not up.
Updated for Transifex.