Used by the routine at NEW_GAME.

Called by NEW_GAME every turn but during the ending. Once the knight has finished appearing, every fourth turn (bits 0-1 of TURNS both set), the first empty monster record (MONSTERS) gets MONSTER_RECORD, a monster appearing (graphic 128). Its cell is the knight's or one of the eight round it, a column and a row each chosen from a third of the random number's range. It goes at a random place in that cell, at least 32 from each edge; one that appears in the first half of every 256 turns gets bit 5 of its flags, which makes a monster of 112-127 turn towards the knight when it chooses a way to go (STEER). After four turns APPEARING_UPDATE makes it a monster of 64-79 or 112-127.

If the cell chosen is solid (types 1 and 2) the routine returns there -- but the record has already been filled, so it keeps its monster, in the corner of the town, cell 0,0, which is solid. Measured: a spawn with the knight's cell set to the corner, where every cell round it is solid, left graphic 128 at U 0 and V 0. Away from the corner it does no harm: after its four turns of appearing its own update finds it more than two cells from the knight and empties the record (WANDERING_MONSTER, MONSTER112_UPDATE), so it only keeps the record from a real monster for those turns. Near the top-left corner it lives: with the knight in cell 1,1 the strays walk off the map to column or row 255, which the byte subtraction of the nearness test counts as close, and for 1463 of 1500 turns three or four of the six monster records held them (measured for the bugs page). Only types 1 and 2 are refused, so a monster is often put inside a building's cell, where it is never drawn and walks on the spot; with the knight standing still the six records fill with these and no new monster appears (measured for the animations page).