int bd_scheduling_type; // BD engine scheduling type
boolean bd_pal_timing; // BD engine uses special PAL timing
boolean bd_line_shifting_borders; // BD engine uses line-shifting wrap-around
+ boolean bd_wraparound_objects; // BD cave object rendering uses wrap-around
+ boolean bd_scan_first_and_last_row; // BD engine scans top and bottom border rows
boolean bd_intermission; // BD level is intermission
boolean bd_diagonal_movements; // BD style diagonal movements
boolean em_slippery_gems; // EM style "gems slip from wall" behaviour