Character

Summary

Character instances (ChrIns in FromSoftware's engine) are updated once a frame through virtual calls on each instance. character_frame_update_01cbdb20 (0x01cbdb20) is one of these updates. It:

fires a pending throw animation event (W_ThrowAtk or W_ThrowDef) and clears the request;
regenerates a points stat that floors at -50 and caps at a maximum, which reads like stamina. The rate is a parameter byte × 0.01 × a per-character multiplier × a virtual factor. Each frame adds the whole part of rate × frame time and keeps the fraction for the next frame;
hands the frame time to the character's modules, copies a few parameters, and builds (then drops) a wide string of the character's name with the thread's allocator. Nothing reads the string; it looks like the remains of debug code.

In the recordings from Iosefka's Clinic the name string is never built.

Scope still to map: the character instance layout, the modules (+0x3b0), the parameters, the other per-frame updates.

Key functions

Address	Size	Name	Status	Notes
`0x01cbdb20`	979	`character_frame_update_01cbdb20`	verified	per-frame character update: throw animation event, points stat regeneration (stamina-like, -50..max), time-step descriptor; the 30/60 FPS patches fix its frame time

Structs and globals

Character instance: frame time +0xe0, parameters +0x58 -> +0x38, modules +0x3b0, regeneration fraction +0x168, multiplier +0x16c, last rate +0x39c, name +0x350.
Data module (modules +0x20): points +0x134, maximum +0x138, a no-drop flag at bit 7 of +0x200.
0x0593e88a: a debug flag (next to the WorldChrManDbg singleton 0x0593e880) that stops the stat from dropping.

Patch points

The frame time read from +0xe0 is replaced by a constant: 1/27 s (30 FPS++), 1/54 s (60 FPS++), 1/50 s (60FPS (no deltatime)), 1/80 s (90 FPS++); Uncap FPS++ keeps the real one. BB_TARGET_FPS does the same for 30 and 60. A fixed time slightly longer than one frame (1/27 instead of 1/30) speeds regeneration up a little; why the patch authors chose it is an open question.

Open questions

Is the points stat stamina? A floor below zero would fit a stat that can be overspent.
Why the patches choose 1/27 and 1/54 rather than 1/30 and 1/60.