Files
arcattackandClaude Opus 4.8 7b7d465e5e Initial commit: bt411 -- standalone Windows BattleTech (Tesla 4.10 port)
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>
2026-07-05 21:03:40 -05:00

209 lines
4.4 KiB
C++

#pragma once
#include "bndgbox.h"
#include "memblock.h"
//##########################################################################
//####################### BoundingBoxTreeNode ########################
//##########################################################################
class BoundingBoxTree;
class BoundingBoxTreeNode SIGNATURED
{
friend class BoundingBoxTree;
//##########################################################################
// Memory Allocation
//
private:
static MemoryBlock* GetAllocatedMemory();
void* operator new(size_t) { return GetAllocatedMemory()->New(); }
void operator delete(void *where) { GetAllocatedMemory()->Delete(where); }
//##########################################################################
// Construction and Destruction
//
protected:
ExtentBox
nodeExtents;
BoundingBox
*staticContents;
BoundingBoxTreeNode
*nodeBranches[6],
*innerNode;
BoundingBoxTreeNode(
BoundingBox *volume,
const ExtentBox &extents
);
~BoundingBoxTreeNode();
void
Add(
BoundingBox *BoundingBox,
const ExtentBox &extents
);
void
Remove(
BoundingBox *BoundingBox,
const ExtentBox &extents
);
//##########################################################################
// Tree Traversal Functions
//
protected:
static int
TraversalOrder[6];
static void
SetTraversalOrder(
int first,
int second,
int third
);
public:
BoundingBoxTreeNode*
FindSmallestNodeContaining(
const ExtentBox &extents,
BoundingBoxTreeNode *parent
);
BoundingBoxTreeNode*
FindSmallestNodeContainingColumn(const ExtentBox &extents);
BoundingBox*
FindBoundingBoxContaining(
const Point3D &point,
BoundingBox *parent
);
void
FindBoundingBoxesContaining(
BoundingBox *volume,
const ExtentBox &slice,
BoundingBoxCollisionList &list
);
BoundingBox*
FindBoundingBoxUnder(
const Point3D &point,
Scalar *height
);
BoundingBox*
FindBoundingBoxHitBy(Line *line);
//##########################################################################
// Test Support
//
public:
Logical
TestInstance() const;
};
//##########################################################################
//######################## BoundingBoxTree ###########################
//##########################################################################
class BoundingBoxTree SIGNATURED
{
//##########################################################################
// Construction and Destruction
//
protected:
BoundingBoxTreeNode *root;
public:
BoundingBoxTree()
{Check_Pointer(this); root = NULL;}
~BoundingBoxTree()
{Check(this); EraseTree();}
static void
SetTraversalOrder(
int first,
int second,
int third
)
{BoundingBoxTreeNode::SetTraversalOrder(first, second, third);}
void
Add(
BoundingBox* volume,
const ExtentBox &extents
);
void
Remove(BoundingBox* volume)
{
Check(this); Check(volume); Check(root);
root->Remove(volume, *volume);
}
void
EraseTree();
//##########################################################################
// Tree Traversal Functions
//
public:
BoundingBox*
FindBoundingBoxContaining(const Point3D &point)
{
Check(this); Check(&point); Check(root);
return root->FindBoundingBoxContaining(point, NULL);
}
BoundingBoxTreeNode*
FindSmallestNodeContaining(const ExtentBox &extents)
{
Check(this); Check(&extents); Check(root);
return root->FindSmallestNodeContaining(extents, NULL);
}
void
FindBoundingBoxesContaining(
BoundingBox *volume,
BoundingBoxCollisionList &list
)
{
Check(this); Check(volume); Check(&list); Check(root);
root->FindBoundingBoxesContaining(
volume,
*volume,
list
);
}
BoundingBoxTreeNode*
FindSmallestNodeContainingColumn(const ExtentBox &extents)
{
Check(this); Check(&extents); Check(root);
Verify((BoundingBoxTreeNode::TraversalOrder[4]>>1) == Y_Axis);
return root->FindSmallestNodeContainingColumn(extents);
}
BoundingBox*
FindBoundingBoxUnder(
const Point3D &point,
Scalar *height
)
{
Check(this); Check(&point); Check(root); Check_Pointer(height);
Verify((BoundingBoxTreeNode::TraversalOrder[4]>>1) == Y_Axis);
return root->FindBoundingBoxUnder(point, height);
}
BoundingBox*
FindBoundingBoxHitBy(Line *line);
//##########################################################################
// Test Support
//
public:
Logical
TestInstance() const;
};