arcattackandClaude Opus 4.8
c2c4ab1f67
Document the cockpit-gauge attribute-pointer system in GAUGE_COMPOSITE.md (§Attribute wave) and CLAUDE.md §10: how a Subsystem/Attribute or bare-Attribute binding resolves (ParseAttribute -> FindSubsystem/GetName -> GetAttributePointer -> activeAttributeIndex), what a class must publish (AttributeID enum + AttributePointers[] + GetAttributeIndex chained + DefaultData wiring), the DENSE-TABLE HAZARD (Build leaves gap slots uninitialized, Find strcmps every slot -> tables must be a dense prefix), and the base-primitive vs BT-specific widget split. Records the 4 committed increments (HeatSink table, Mech table, vertBar, segmentArcRatio) and the follow-ups (oneOfSeveralPixInt/map/PlayerStatus/ vehicleSubSystems, the #if0'd HeatSink-bank AmbientTemperature, the Reservoir coolantCapacity shadow). Promote the two reverse-engineering helpers from the session scratchpad into tools/ (durable): disas2.py (capstone + PE parse -- recovers x87 float math Ghidra drops; FUN_004dcd94=round, FUN_004dcd00=fabs) and vtdump.py (dump a class vtable to find an override the assert-anchored decomp never exported, e.g. SegmentArcRatio::Execute). Doc references updated scratchpad/ -> tools/. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
31 lines
1.0 KiB
Python
31 lines
1.0 KiB
Python
import struct, sys
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PATH = r"C:\git\bt411\content\BTL4OPT.EXE"
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data = open(PATH, "rb").read()
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e_lfanew = struct.unpack_from("<I", data, 0x3C)[0]
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coff = e_lfanew + 4
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num_sec = struct.unpack_from("<H", data, coff+2)[0]
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opt_size = struct.unpack_from("<H", data, coff+16)[0]
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opt = coff + 20
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image_base = struct.unpack_from("<I", data, opt+28)[0]
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sec_tbl = opt + opt_size
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secs = []
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for i in range(num_sec):
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off = sec_tbl + i*40
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vsize, va, rawsize, rawptr = struct.unpack_from("<IIII", data, off+8)
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secs.append((va, vsize, rawptr, rawsize))
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def va_to_off(va):
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rva = va - image_base
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for sva, vsize, rawptr, rawsize in secs:
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if sva <= rva < sva + max(vsize, rawsize):
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return rawptr + (rva - sva)
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return None
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VT = int(sys.argv[1], 16)
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N = int(sys.argv[2]) if len(sys.argv) > 2 else 32
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o = va_to_off(VT)
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print(f"vtable @0x{VT:x}:")
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for i in range(N):
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fp = struct.unpack_from("<I", data, o + i*4)[0]
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tag = ""
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if 0x4c2f94 <= fp <= 0x4c6771: tag = " <-- BT btl4gaug fn"
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print(f" [+0x{i*4:02x}] slot{i:2d} = 0x{fp:x}{tag}")
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