Joe DiPrimaandClaude Opus 5
1f0923747b
Oracle: "crouch wasn't resetting on respawn ... mechs always spawn standing".
Correct -- Mech::Reset (@0049fb74) stands the mech up and the port cleared
none of it:
*(this+0x398) = 0 duckState
Set_Alarm_Level(this+0x39c,0) legStateAlarm -> standing
Set_Alarm_Level(this+0x714,0) bodyStateAlarm -> standing
*(this+0x650/0x654/0x658) = 0 death + leg/body reset latches
*(this+0x5ac) = 1.0f idleStrideScale
A pilot who died CROUCHED came back crouched -- leg parked in 'sqd' -- and now
that the cockpit strip works, showing the up-arrow "press to rise" frame on a
standing mech.
Benched (crouchrespawn.sh): A squats, dies while down, respawns -> legLvl 0
(standing) after Mech::Reset. Weak but the failure mode (stuck legLvl=1) is
absent. NB the first attempt was void: force-damage kept A dying before it
could crouch (legLvl 22/24 = death clips), so the run tested a STANDING death.
Switched to self-damage so the mech is stopped long enough to crouch.
Also carries the #142 gauge work: the crouch strip is a BUTTON-STATE indicator
(grey unavailable / orange down-arrow ready / orange up-arrow crouched),
decoded by rendering BDUCK.PCC rather than inferring it; and the gauge
factory's missing-image path no longer uses the no-op DebugStream.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NCJQkvq6G2JNrpVbA75tVZ
50 lines
2.2 KiB
Python
50 lines
2.2 KiB
Python
"""Audit Mech::Reset (@0049fb74) -- every field the binary clears vs ours.
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Motivated by finding EIGHT dropped posture clears (duckState, both state alarms,
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the death/reset latches, idleStrideScale) in the port's Reset, and by #137
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"respawn came back with MYOMERS heat MAXED" + Sauron's overheating generator D:
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if the reconstruction dropped the posture clears it may have dropped others.
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"""
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import io, re
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DECOMP = r"C:\git\bt411\reference\decomp\all\part_012.c"
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HPP = r"C:\git\bt411\game\reconstructed\mech.hpp"
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CPP = r"C:\git\bt411\game\reconstructed\mech4.cpp"
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# --- 1. every offset the BINARY's Reset touches ---------------------------
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lines = io.open(DECOMP, encoding="latin-1", errors="replace").readlines()
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body = "".join(lines[14191:14400]) # FUN_0049fb74
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bin_off = sorted({int(m, 16) for m in re.findall(r"param_1 \+ (0x[0-9a-f]+)", body)})
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# --- 2. offset -> our field name, from mech.hpp's offset comments ---------
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name_of = {}
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for ln in io.open(HPP, encoding="latin-1", errors="replace"):
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m = re.search(r"^\s*(?:[A-Za-z_][\w:<>* ]*?)\s+(\w+)\s*(?:\[\d+\])?\s*;.*?(?:@|//\s*)0x([0-9a-fA-F]+)", ln)
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if m:
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name_of.setdefault(int(m.group(2), 16), m.group(1))
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# --- 3. what OUR Reset assigns -------------------------------------------
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cpp = io.open(CPP, encoding="latin-1", errors="replace").read()
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i = cpp.find("Mech::Reset(const Origin &origin, int mode)")
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ours_body = cpp[i:i + 9000] if i != -1 else ""
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ours = set(re.findall(r"^\s*(\w+)\s*(?:\.\w+\([^)]*\)|=)", ours_body, re.M))
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print("Mech::Reset @0049fb74 -- %d distinct fields touched by the binary\n" % len(bin_off))
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missing, covered, unknown = [], [], []
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for off in bin_off:
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nm = name_of.get(off)
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if nm is None:
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unknown.append(off)
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elif nm in ours:
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covered.append((off, nm))
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else:
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missing.append((off, nm))
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print("COVERED by our Reset (%d):" % len(covered))
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print(" " + ", ".join("%s@0x%x" % (n, o) for o, n in covered) + "\n")
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print("*** NOT CLEARED by our Reset (%d) -- named fields the binary resets ***" % len(missing))
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for o, n in missing:
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print(" 0x%-5x %s" % (o, n))
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print("\nUNMAPPED offsets (%d) -- no named field at that offset in mech.hpp:" % len(unknown))
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print(" " + " ".join("0x%x" % o for o in unknown))
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