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>
163 lines
3.7 KiB
C++
163 lines
3.7 KiB
C++
#include "mungal4.h"
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#pragma hdrstop
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#include "l4time.h"
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//#include <bios.h>
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//#include <sos.h>
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#include <intrin.h>
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#include <windows.h>
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//#############################################################################
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//########################### System Clock ##############################
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//#############################################################################
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SystemClock SystemClock::timer;
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long SystemClock::ticksPerSecond;
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__int64 SystemClock::perfCounterFreq;
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//RB 1/20/07
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//volatile long fast_time = 0L;
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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//
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//void outportb(short portid, unsigned char value)
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//{
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// __asm
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// {
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// MOV DX, portid
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// MOV AL, value
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// OUT DX, AL
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// }
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// __outbyte(portid, value);
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//}
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////~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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////
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//unsigned char inportb(short portid)
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//{
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// unsigned char retVal;
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// __asm
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// {
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// MOV DX, portid
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// IN AL, DX
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// MOV retVal, AL
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// }
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// return retVal;
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//}
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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//
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/*TIME RB 1/20/07
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void Timer_Handler()
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{
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++fast_time;
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}*/
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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//
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long SystemClock::GetRTC()
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{
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LARGE_INTEGER count;
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QueryPerformanceCounter(&count);
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return (long)((count.QuadPart * (__int64)1000) / SystemClock::perfCounterFreq);
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}
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double SystemClock::GetHiRes()
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{
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LARGE_INTEGER count;
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QueryPerformanceCounter(&count);
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return (count.QuadPart / (double)SystemClock::perfCounterFreq);
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}
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__int64 SystemClock::GetHiResTicks()
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{
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LARGE_INTEGER count;
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QueryPerformanceCounter(&count);
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return count.QuadPart;
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}
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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//
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SystemClock::SystemClock()
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{
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//
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//-------------------------------
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// Initialize the timer variables
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//-------------------------------
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//
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pauseStart = 0;
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pauseTime = 0;
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//
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//------------------------------
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// Initialize the platform timer
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//------------------------------
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//
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// query the performance counter for its frequency
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LARGE_INTEGER freq;
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QueryPerformanceFrequency(&freq);
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//SystemClock::ticksPerSecond = freq.QuadPart;
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SystemClock::perfCounterFreq = freq.QuadPart;
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SystemClock::ticksPerSecond = 1000L;
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}
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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//
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void SystemClock::Shutdown()
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{
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/*STUBBED: TIME RB 1/20/07
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if (timer_handler_handle != 0xFFFF)
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{
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#if DEBUG_LEVEL>0
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WORD err = sosTIMERRemoveEvent(timer_handler_handle);
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Verify(err == _ERR_NO_ERROR);
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err = sosTIMERUnInitSystem(0);
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Verify(err == _ERR_NO_ERROR);
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#else
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sosTIMERRemoveEvent(timer_handler_handle);
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sosTIMERUnInitSystem(0);
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#endif
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}
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*/
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}
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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//
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#define TIMER_CONTROL 0x43
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#define GET_TIMER0 0xC2
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#define TIMER0_PORT 0x40
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#define OUTPUT_BIT 0x80
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#undef inportb
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#undef outportb
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float Get_Frame_Percent_Used()
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{
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//STUBBED: SOS RB 1/14/07
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///* RB 1/11/07
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//outportb(TIMER_CONTROL, GET_TIMER0);
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//int half = inportb(TIMER0_PORT) & OUTPUT_BIT;
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//int subtick = ((int)inportb(TIMER0_PORT)) >> 1;
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//subtick += (((int)inportb(TIMER0_PORT)) << 7);
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//*/
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//__outbyte(TIMER_CONTROL, GET_TIMER0);
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//int half = __inbyte(TIMER0_PORT) & OUTPUT_BIT;
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//int subtick = ((int)__inbyte(TIMER0_PORT)) >> 1;
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//subtick += (((int)__inbyte(TIMER0_PORT)) << 7);
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//if (timer_handler_handle == 0xFFFF)
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//{
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// subtick += half << 8;
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// return (65535 - subtick) / 65536.0f;
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//}
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//else
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//{
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// if (half)
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// {
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// subtick += _wTIMERValue >> 1;
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// }
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// return (_wTIMERValue - 1 - subtick) / (float)_wTIMERValue;
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//}
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return 0.0f;
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}
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