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>
133 lines
4.1 KiB
C
133 lines
4.1 KiB
C
// Recovered decompilation of functions attributed to bt/btplayer.cpp
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// (from BTL4OPT.EXE via embedded assert paths). Pseudocode — reconstruct against the header.
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/* ---- @ 004c0200 ---- */
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void __cdecl FUN_004c0200(int param_1,int param_2)
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{
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int iVar1;
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int iVar2;
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float10 fVar3;
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float local_10;
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if (*(int *)(param_2 + 0x20) != 0) {
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FUN_0040385c(s_BTPlayer__ScoreInflictedMessageH_00513110,s_d__tesla_bt_bt_btplayer_cpp_0051316a,
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0x18b);
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}
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iVar2 = (**(code **)(*(int *)(*(int *)(DAT_004efc94 + 0x2c) + 0x54) + 0xc))
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(*(int *)(DAT_004efc94 + 0x2c) + 0x54,param_2 + 0x34);
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iVar1 = *(int *)(param_1 + 0x1fc);
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fVar3 = FUN_004c052c(param_1,(float *)(param_2 + 0x24),iVar2,0.0);
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local_10 = (float)fVar3;
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if (iVar2 == iVar1) {
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local_10 = -local_10;
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}
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*(float *)(param_1 + 0x278) =
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(*(float *)(iVar2 + 0x4bc) / *(float *)(iVar1 + 0x4bc)) * local_10 +
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*(float *)(param_1 + 0x278);
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return;
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}
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/* ---- @ 004c02a8 ---- */
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void __cdecl FUN_004c02a8(int param_1,int param_2)
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{
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if ((*(uint *)(param_1 + 0x28) & 0xc) == 4) {
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FUN_0040385c(s_BTPlayer__ScoreUpdateMessageHand_00513186,s_d__tesla_bt_bt_btplayer_cpp_005131cf,
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0x1d5);
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}
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FUN_0042da20(param_1,param_2);
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return;
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}
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/* ---- @ 004c02e4 ---- */
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void __cdecl FUN_004c02e4(int param_1,int param_2)
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{
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int *piVar1;
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int iVar2;
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int iVar3;
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undefined4 uVar4;
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float10 fVar5;
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undefined4 uVar6;
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undefined4 local_4c [10];
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int local_24;
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undefined4 local_20;
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int local_1c;
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undefined4 local_18;
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undefined4 *local_14;
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float local_10;
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int local_c;
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int local_8;
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if ((*(uint *)(param_1 + 0x28) & 0xc) == 4) {
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FUN_0040385c(s_BTPlayer__ScoreMessageHandler_sh_005131eb,s_d__tesla_bt_bt_btplayer_cpp_0051322e,
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0x1e9);
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}
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if (*(int *)(param_1 + 0x40) != 4) {
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local_8 = param_2 + 0x34;
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iVar3 = (**(code **)(*(int *)(*(int *)(DAT_004efc94 + 0x2c) + 0x54) + 0xc))
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(*(int *)(DAT_004efc94 + 0x2c) + 0x54,local_8);
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local_c = *(int *)(param_1 + 0x1fc);
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iVar2 = *(int *)(param_2 + 0x20);
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if (iVar2 == 0) {
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FUN_0040385c(s_BTPlayer__ScoreMessageHandler_sh_0051324a,
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s_d__tesla_bt_bt_btplayer_cpp_0051329a,0x296);
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}
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else if (iVar2 == 1) {
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if (iVar3 != local_c) {
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fVar5 = FUN_00429b94(*(int *)(param_1 + 0x208),(float *)(param_2 + 0x24));
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local_10 = (*(float *)(local_c + 0x4bc) / *(float *)(iVar3 + 0x4bc)) * (float)fVar5;
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}
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local_1c = FUN_00429078(*(int *)(DAT_004efc94 + 0x2c));
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if ((local_1c != 0) && (*(int *)(param_1 + 600) == 0)) {
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local_20 = *(undefined4 *)(param_2 + 0x30);
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local_24 = FUN_004078fc(*(float *)(param_2 + 0x24));
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uVar6 = local_20;
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uVar4 = FUN_004dcd94();
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FUN_004c1944(local_4c,*(undefined4 *)(param_1 + 0x18c),
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*(undefined4 *)(*(int *)(iVar3 + 400) + 0x18c),local_24,
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*(undefined4 *)(param_2 + 0x2c),*(undefined4 *)(param_2 + 0x28),uVar4,uVar6);
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(**(code **)(**(int **)(DAT_004efc94 + 0x20) + 0x18))
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(*(int **)(DAT_004efc94 + 0x20),local_4c,5,*(undefined4 *)(local_1c + 0xc));
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}
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}
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else if (iVar2 == 2) {
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fVar5 = FUN_004c052c(param_1,(float *)(param_2 + 0x24),iVar3,*(float *)(param_2 + 0x1c));
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local_10 = (*(float *)(iVar3 + 0x4bc) / *(float *)(local_c + 0x4bc)) * (float)fVar5;
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if (iVar3 == local_c) {
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local_10 = -local_10;
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}
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else {
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*(int *)(param_1 + 0x27c) = *(int *)(param_1 + 0x27c) + 1;
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piVar1 = (int *)(*(int *)(iVar3 + 400) + 0x27c);
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*piVar1 = *piVar1 + 1;
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}
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local_14 = FUN_00402f74(0x512f6c);
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if (local_14 != (undefined4 *)0x0) {
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local_18 = *(undefined4 *)(iVar3 + 400);
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FUN_0042d990(local_14,local_18,0,0x40c00000);
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*local_14 = &PTR_LAB_00513344;
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local_14[6] = 0;
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}
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FUN_0042e580(param_1,local_14);
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if (iVar3 == *(int *)(param_1 + 0x284)) {
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FUN_004b04d8(**(int **)(*(int *)(param_1 + 0x1fc) + 0x128),iVar3);
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}
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}
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*(float *)(param_2 + 0x1c) = local_10;
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FUN_0042da20(param_1,param_2);
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}
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return;
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}
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