arcattackandClaude Opus 4.8
7b7d465e5e
Clean, self-contained extraction of the BattleTech-specific work from the
reverse-engineering workspace -- engine + game + content + build, with nothing
from Red Planet or the raw archive dumps. Builds green (Win32) and runs the
single-player drive->animate->target->fire->damage->destroy loop out of the box.
Layout:
engine/ MUNGA + MUNGA_L4 shared 2007 engine, carrying our BT render/loader
work (bgfload/L4D3D/L4VIDEO: BSL bit-slice decode, LOD/ground/shadow
models) + image codec; the minimal rp/ headers the audio HAL needs
game/ reconstructed BT logic + surviving-original BT source + fwd shims
+ WinMain launcher
content/ full runtime tree (BTL4.RES, VIDEO/, GAUGE/, AUDIO/, eggs, BTDPL.INI)
docs/ format specs + reconstruction ledgers
reference/ raw Ghidra pseudocode (recon source-of-truth) + decomp exporter
tools/ MP console emulator + map/resource scanners
One top-level CMake builds munga_engine lib + bt410_l4 game lib + btl4.exe.
All paths relativized (186 fwd shims + ~437 CMake abs paths -> repo-relative);
DXSDK is the one external, overridable via -DDXSDK. Verified: builds to a
byte-identical 2.27MB exe and runs combat (TARGET DESTROYED, 0 crashes) against
the bundled content.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
123 lines
2.9 KiB
C++
123 lines
2.9 KiB
C++
#include "munga.h"
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#pragma hdrstop
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#include "filestrm.h"
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//#############################################################################
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//########################### FileStream ################################
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//#############################################################################
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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//
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FileStream::FileStream(const char* file_name, Logical writable) : MemoryStream(NULL, 0)
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{
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Open(file_name, writable);
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}
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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//
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void FileStream::Open(const char* file_name, Logical writable)
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{
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readOnly = !writable;
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fileHandle = -1;
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currentPosition = streamStart = NULL;
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streamSize = 0;
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if (file_name)
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{
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Check_Pointer(file_name);
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fileHandle = OpenImplementation(file_name, readOnly);
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}
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if (fileHandle != -1)
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{
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if (readOnly)
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{
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streamSize = SeekImplementation(fileHandle, 0, True);
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SeekImplementation(fileHandle, 0);
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}
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else
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streamSize = 0xFFFFFFFFU;
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}
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}
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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//
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void FileStream::Close()
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{
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Check(this);
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if (fileHandle != -1)
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{
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if (!readOnly)
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FlushImplementation(fileHandle);
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CloseImplementation(fileHandle);
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}
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fileHandle = -1;
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}
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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//
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void FileStream::SetPointer(size_t index)
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{
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Check(this);
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Verify(fileHandle != -1);
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currentPosition = (char*)SeekImplementation(fileHandle, index);
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}
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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//
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MemoryStream& FileStream::AdvancePointer(size_t index)
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{
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Check(this);
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Verify(fileHandle != -1);
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currentPosition = (char*)SeekImplementation(fileHandle, (size_t)currentPosition + index);
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return *this;
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}
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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//
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MemoryStream& FileStream::RewindPointer(size_t index)
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{
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Check(this);
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Verify(fileHandle != -1);
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currentPosition = (char*)SeekImplementation(fileHandle, (size_t)currentPosition + index);
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return *this;
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}
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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//
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MemoryStream& FileStream::ReadBytes(void *ptr, size_t number_of_bytes)
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{
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Check(this);
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Verify(fileHandle != -1);
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Verify(readOnly);
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size_t read = ReadImplementation(fileHandle, ptr, number_of_bytes);
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Verify(read == number_of_bytes);
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currentPosition += read;
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return *this;
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}
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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//
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MemoryStream& FileStream::WriteBytes(const void *ptr, size_t number_of_bytes)
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{
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Check(this);
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Verify(fileHandle != -1);
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Verify(!readOnly);
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size_t written = WriteImplementation(fileHandle, ptr, number_of_bytes);
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Verify(written == number_of_bytes);
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currentPosition += written;
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return *this;
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}
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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//
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Logical FileStream::TestInstance() const
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{
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return true;
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}
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