Initial commit

Author: RandyGaul

.gitattributes

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+# Auto detect text files and perform LF normalization
+* text=auto
+
+# Custom for Visual Studio
+*.cs     diff=csharp
+*.sln    merge=union
+*.csproj merge=union
+*.vbproj merge=union
+*.fsproj merge=union
+*.dbproj merge=union
+
+# Standard to msysgit
+*.doc	 diff=astextplain
+*.DOC	 diff=astextplain
+*.docx diff=astextplain
+*.DOCX diff=astextplain
+*.dot  diff=astextplain
+*.DOT  diff=astextplain
+*.pdf  diff=astextplain
+*.PDF	 diff=astextplain
+*.rtf	 diff=astextplain
+*.RTF	 diff=astextplain

.gitignore

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+#################
+## Eclipse
+#################
+
+*.pydevproject
+.project
+.metadata
+bin/
+tmp/
+*.tmp
+*.bak
+*.swp
+*~.nib
+local.properties
+.classpath
+.settings/
+.loadpath
+
+# External tool builders
+.externalToolBuilders/
+
+# Locally stored "Eclipse launch configurations"
+*.launch
+
+# CDT-specific
+.cproject
+
+# PDT-specific
+.buildpath
+
+
+#################
+## Visual Studio
+#################
+
+## Ignore Visual Studio temporary files, build results, and
+## files generated by popular Visual Studio add-ons.
+
+# User-specific files
+*.suo
+*.user
+*.sln.docstates
+
+# Build results
+[Dd]ebug/
+[Rr]elease/
+*_i.c
+*_p.c
+*.ilk
+*.meta
+*.obj
+*.pch
+*.pdb
+*.pgc
+*.pgd
+*.rsp
+*.sbr
+*.tlb
+*.tli
+*.tlh
+*.tmp
+*.vspscc
+.builds
+*.dotCover
+
+## TODO: If you have NuGet Package Restore enabled, uncomment this
+#packages/
+
+# Visual C++ cache files
+ipch/
+*.aps
+*.ncb
+*.opensdf
+*.sdf
+
+# Visual Studio profiler
+*.psess
+*.vsp
+
+# ReSharper is a .NET coding add-in
+_ReSharper*
+
+# Installshield output folder
+[Ee]xpress
+
+# DocProject is a documentation generator add-in
+DocProject/buildhelp/
+DocProject/Help/*.HxT
+DocProject/Help/*.HxC
+DocProject/Help/*.hhc
+DocProject/Help/*.hhk
+DocProject/Help/*.hhp
+DocProject/Help/Html2
+DocProject/Help/html
+
+# Click-Once directory
+publish
+
+# Others
+[Bb]in
+[Oo]bj
+sql
+TestResults
+*.Cache
+ClientBin
+stylecop.*
+~$*
+*.dbmdl
+Generated_Code #added for RIA/Silverlight projects
+
+# Backup & report files from converting an old project file to a newer
+# Visual Studio version. Backup files are not needed, because we have git ;-)
+_UpgradeReport_Files/
+Backup*/
+UpgradeLog*.XML
+
+
+
+############
+## Windows
+############
+
+# Windows image file caches
+Thumbs.db
+
+# Folder config file
+Desktop.ini
+
+
+#############
+## Python
+#############
+
+*.py[co]
+
+# Packages
+*.egg
+*.egg-info
+dist
+build
+eggs
+parts
+bin
+var
+sdist
+develop-eggs
+.installed.cfg
+
+# Installer logs
+pip-log.txt
+
+# Unit test / coverage reports
+.coverage
+.tox
+
+#Translations
+*.mo
+
+#Mr Developer
+.mr.developer.cfg
+
+# Mac crap
+.DS_Store

Body.cpp

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+#include "Precompiled.h"
+
+Body::Body( Shape *shape_, uint32 x, uint32 y )
+  : shape( shape_->Clone( ) )
+{
+  shape->body = this;
+  position.Set( (real)x, (real)y );
+  velocity.Set( 0, 0 );
+  angularVelocity = 0;
+  torque = 0;
+  orient = Random( -PI, PI );
+  force.Set( 0, 0 );
+  staticFriction = 0.5f;
+  dynamicFriction = 0.3f;
+  restitution = 0.2f;
+  shape->Initialize( );
+  r = Random( 0.2f, 1.0f );
+  g = Random( 0.2f, 1.0f );
+  b = Random( 0.2f, 1.0f );
+}
+
+void Body::SetOrient( real radians )
+{
+  orient = radians;
+  shape->SetOrient( radians );
+}

Body.h

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+#ifndef BODY_H
+#define BODY_H
+
+struct Shape;
+
+struct Body
+{
+  Body( Shape *shape_, uint32 x, uint32 y );
+
+  void ApplyForce( const Vec2& f )
+  {
+    force += f;
+  }
+
+  void ApplyImpulse( const Vec2& impulse, const Vec2& contactVector )
+  {
+    velocity += im * impulse;
+    angularVelocity += iI * Cross( contactVector, impulse );
+  }
+
+  void SetStatic( void )
+  {
+    I = 0.0f;
+    iI = 0.0f;
+    m = 0.0f;
+    im = 0.0f;
+  }
+
+  void SetOrient( real radians );
+
+  Vec2 position;
+  Vec2 velocity;
+
+  real angularVelocity;
+  real torque;
+  real orient; // radians
+
+  Vec2 force;
+  Vec2 oldForce;
+
+  // Set by shape
+  real I;  // moment of inertia
+  real iI; // inverse inertia
+  real m;  // mass
+  real im; // inverse masee
+
+  real staticFriction;
+  real dynamicFriction;
+  real restitution;
+
+  Shape *shape;
+
+  real r, g, b;
+};
+
+#endif // BODY_H

Clock.cpp

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+
+#include "Precompiled.h"
+
+Clock::Clock( )
+{
+  // Assign to a single processor
+  SetThreadAffinityMask( GetCurrentThread( ), 1 );
+
+  // Grab frequency of this processor
+  QueryPerformanceFrequency( &m_freq );
+
+  // Setup initial times
+  Start( );
+  Stop( );
+}
+
+Clock::~Clock( )
+{
+}
+
+// Records current time in start variable
+void Clock::Start( void )
+{
+  QueryPerformanceCounter( &m_start );
+}
+
+// Records current time in stop variable
+void Clock::Stop( void )
+{
+  QueryPerformanceCounter( &m_stop );
+}
+
+// Get current time from previous Start call
+f32 Clock::Elapsed( void )
+{
+  QueryPerformanceCounter( &m_current );
+  return (m_current.QuadPart - m_start.QuadPart) / (float)m_freq.QuadPart;
+}
+
+// Time between last Start and Stop calls
+f32 Clock::Difference( void )
+{
+  return (m_stop.QuadPart - m_start.QuadPart) / (float)m_freq.QuadPart;
+}
+
+// Get the current clock count
+LONGLONG Clock::Current( void )
+{
+  QueryPerformanceCounter( &m_current );
+  return m_current.QuadPart;
+}
+
+void Clock::Query( LARGE_INTEGER& query )
+{
+  QueryPerformanceCounter( &query );
+}

Clock.h

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+class Clock
+{
+public:
+  Clock( );
+  ~Clock( );
+
+  // Records current time in start variable
+  void Start( void );
+
+  // Records current time in stop variable
+  void Stop( void );
+
+  // Time since last Start call
+  f32 Elapsed( void );
+
+  // Time between last Start and Stop calls
+  f32 Difference( void );
+
+  // Get the current clock count
+  LONGLONG Current( void );
+
+private:
+  LARGE_INTEGER m_freq;
+  LARGE_INTEGER m_start, m_stop, m_current;
+
+  friend class Timer;
+  // Callbacks for Timer
+  void Query( LARGE_INTEGER& query );
+};