CydandClaude Opus 4.8
4abbf8879f
Imports the current Win32 source for the pod-racing game 'Red Planet', built on the MUNGA engine and its L4 (Win32/DirectX) platform layer: - MUNGA / MUNGA_L4: cross-platform engine core and Win32 backend - RP / RP_L4: Red Planet game logic and Win32 application - DivLoader, Setup1: asset loader and installer project - lib, MUNGA_L4/openal, MUNGA_L4/sos: third-party audio dependencies Removed stale Subversion metadata and added .gitignore/.gitattributes. Co-Authored-By: Claude Opus 4.8 <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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