Moved wall and plane texture offset properties into surface_t. This now means that each wall section has its own texture offsets. Updated DMU and DAM accordingly. Made surface_t->offx and surface_t->offy floats.
View differences
Moved wall and plane texture offset properties into surface_t. This now means that each wall section has its own texture offsets. Updated DMU and DAM accordingly. Made surface_t->offx and surface_t->offy floats.