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>
139 lines
2.6 KiB
C++
139 lines
2.6 KiB
C++
#include "munga.h"
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#pragma hdrstop
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#include "rect2d.h"
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//
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//------------------------------------------------------------------------
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// Creators
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//------------------------------------------------------------------------
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//
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Rectangle2D::Rectangle2D()
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{
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MakeEmpty(); // uninitialized rectangles should be "empty"
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}
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Rectangle2D::Rectangle2D(
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Vector2DOf<int> bl,
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Vector2DOf<int> tr
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)
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{
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bottomLeft = bl;
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topRight = tr;
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}
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Rectangle2D::Rectangle2D(
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int x1, int y1, int x2, int y2
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)
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{
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bottomLeft.x = x1;
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bottomLeft.y = y1;
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topRight.x = x2;
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topRight.y = y2;
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}
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//
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//------------------------------------------------------------------------
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// Union (returns bounding rectangle)
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//------------------------------------------------------------------------
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//
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void
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Rectangle2D::Union(
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const Rectangle2D& r1,
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const Rectangle2D& r2
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)
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{
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Check(this);
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Check(&r1);
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Check(&r2);
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if (r1.IsEmpty())
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{
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if (r2.IsEmpty())
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{
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MakeEmpty();
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}
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else
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{
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bottomLeft = r2.bottomLeft;
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topRight = r2.topRight;
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}
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}
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else
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{
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if (r2.IsEmpty())
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{
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bottomLeft = r1.bottomLeft;
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topRight = r1.topRight;
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}
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else
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{
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bottomLeft.x = Min(r1.bottomLeft.x, r2.bottomLeft.x);
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bottomLeft.y = Min(r1.bottomLeft.y, r2.bottomLeft.y);
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topRight.x = Max(r1.topRight.x, r2.topRight.x);
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topRight.y = Max(r1.topRight.y, r2.topRight.y);
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}
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}
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}
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//
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//------------------------------------------------------------------------
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// Intersection (returns overlapping section)
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//------------------------------------------------------------------------
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//
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void
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Rectangle2D::Intersection(
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const Rectangle2D& r1,
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const Rectangle2D& r2
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)
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{
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Check(this);
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Check(&r1);
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Check(&r2);
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if (r1.IsEmpty())
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{
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MakeEmpty();
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}
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else
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{
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if (r2.IsEmpty())
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{
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MakeEmpty();
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}
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else
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{
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bottomLeft.x = Max(r1.bottomLeft.x, r2.bottomLeft.x);
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bottomLeft.y = Max(r1.bottomLeft.y, r2.bottomLeft.y);
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topRight.x = Min(r1.topRight.x, r2.topRight.x);
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topRight.y = Min(r1.topRight.y, r2.topRight.y);
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}
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}
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}
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//
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//------------------------------------------------------------------------
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// Output stream operator
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//------------------------------------------------------------------------
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//
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std::ostream& operator<<(std::ostream& Stream, const Rectangle2D& r)
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{
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Check(&r);
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return Stream << '(' << r.bottomLeft << ',' << r.topRight << ')';
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}
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//
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//------------------------------------------------------------------------
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// TestInstance
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//------------------------------------------------------------------------
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//
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Logical
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Rectangle2D::TestInstance() const
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{
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return True;
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}
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#if defined(TEST_CLASS)
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# include "rect2d.tcp"
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#endif
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