Entry 169

"The enemy races' motion: A, D, E, S, T, W, 3, 4 and Z"

2026-09-26world

Filescrates/piney-battle/src/enemy_motion.rscrates/piney-battle/examples/battle_probe/spawn.rscrates/piney-battle/examples/battle_probe/enemy_motion.rstools/test_battle_spawn_rs.pytools/test_battle_enemy_motion_rs.pydocs/engine/battle.md

Worklog 0168 made every race but L and moved six more. This moves the rest of the Delta server's races but L: the golems (A), the bats and eyes (D), the rocks and turtles (E), the snakes (S), the boxes (T), the ghosts (W) and the witches (4). ccEnemy3 and ccEnemyZ are not on the Delta server but were a few lines each. The rules are in docs/engine/battle.md, "Enemy movement and animation". They were read with a small symbolic tracer over the listings, which prints each call to the act helpers with its arguments.

What is new beyond the rates:

• The mimics (T type 1) open their lid to move (clip 11) and close it to wait (12). The code keys this on anmNumOld, which is the clip playing. After 48 frames of closing in, a mimic gives up and stops, and returns before moveFlag is set.
• The ghosts (W types 0-1) bob as the Death Head does, by 100 + 60 sinf. Their chase and their flinch bump the act's count on its first frame, and a flinch plays clip 8 only.
• Ark Prince and its kin (D type 3) float by zoffs in exclusive(). The Bat lunges at 30 for 48 frames. S's moveES carries the same row-89 test, copied from D, which never holds for a snake.
• The turtles (E type 3) raise dust rings at two feet, looked up by node name in the clump: Call::FootDust, which the harnesses record at GetObjAdrsF.
• Two traps in the switches. D's type switch has no default, so any type but 2 and 4 falls into moveED. The first comparison found this with a random type 6. A's escape reads uninitialised registers for types above 4, which no row has, so the harness keeps A's random types to 0-4 (as it keeps ccEnemy1's to 0-5).

Kind now names every race but L, and note()'s and exclusive()'s dust go by race (Kind::note_dust, excl_dust).

Checks. The motion harness picks every race now:

• action: 1,500 cases.
• excl: 600 cases, aimed as well at D's float and E's turtles.
• note: 600 cases, with turtles walking on notes 1 and 2; the foot dust came up.
• main: 600 cases.

In tools/test_battle_spawn_rs.py:

• race: 150 cases.
• frame_enemies: 150 cases, with rows of every race but L's, the drained forms and the middle bosses.

All cases were equal.