private void InitStage()
{
// add tube maze first
tubeMaze = new TubeMaze( this, -5f, 2.3f );
ObjectTable.Add( tubeMaze );
// side boundaries
float leftBoundX = -.5f * stageWidth;
FirstRow = lastRowY;
Boundary boundary = new Boundary( this, leftBoundX, -leftBoundX, FirstRow, rowSpacing );
ObjectTable.Add( boundary );
// starting shelves
Shelves shelves = new Shelves( this );
ObjectTable.Add( shelves );
// players
AddPlayers( shelves );
}
public Shelves( GameplayScreen screen )
: base(screen)
{
int nCages = nMaxPlayers * nCagesPerBox;
cagePieces = new CagePiece[nCages];
DrawOrder = 4;
for ( int i = 0; i < nCages; ++i )
cagePieces[i] = new CagePiece();
hingeTransforms = new Matrix[4];
angleSpring = new SpringInterpolater( 1, 50, SpringInterpolater.GetCriticalDamping( 50 ) );
cageModel = screen.Content.Load<InstancedModel>( "Models/cage" );
hingeModel = screen.Content.Load<InstancedModel>( "Models/cageHinge" );
// determine transforms for each piece
boundary = screen.ObjectTable.GetObjects<Boundary>()[0];
if ( boundary == null )
throw new InvalidOperationException( "boundary must be initialized before shelf" );
float totalLength = boundary.Right - boundary.Left - size - 2f * offsetFromWall;
spacing = totalLength / 3f;
Camera camera = Screen.Camera;
float tanFovOver2 = (float)Math.Tan( camera.Fov / 2f );
float depth = camera.Position.Z + size / 2f;
float height = depth * tanFovOver2;
topLine = height - size / 2f;
depth = camera.Position.Z - size / 2f;
height = depth * tanFovOver2;
deathLine = Screen.Camera.Position.Y - height;
// cage bottoms stored in first four indices
for ( int i = 0; i < nMaxPlayers; ++i )
{
Vector3 pos = new Vector3( boundary.Left + offsetFromWall + i * spacing, topLine - size / 2f, 0f );
cagePieces[i].Translation = Matrix.CreateTranslation( pos );
cagePieces[i].Rotation = bottomStart;
cagePieces[i].Transform = scale * bottomStart * cagePieces[i].Translation;
cagePieces[i].Body = new PhysPolygon( size, .014f * size, new Vector2( pos.X + size / 2f, pos.Y ), 1f );
cagePieces[i].Body.Friction = 1.75f;
cagePieces[i].Body.SetPivotPoint( new Vector2( -size / 2, 0f ) );
cagePieces[i].Body.Flags = BodyFlags.Anchored;
cagePieces[i].Body.Parent = this;
Screen.PhysicsSpace.AddBody( cagePieces[i].Body );
hingeTransforms[i] = Matrix.CreateScale( size ) *
Matrix.CreateTranslation( new Vector3( cagePieces[i].Body.Position, 0 ) );
}
// all other cage pieces won't change
for ( int i = nMaxPlayers; i < nCages; ++i )
{
int box = ( i - nMaxPlayers ) / 2;
int side = i % 2;
float x = boundary.Left + offsetFromWall + box * spacing + side * size;
Vector3 pos = new Vector3( x, topLine, 0f );
Matrix translation = Matrix.CreateTranslation( pos );
Matrix rotation = side == 0 ? rotateL : rotateR;
cagePieces[i].Translation = translation;
cagePieces[i].Rotation = rotation;
cagePieces[i].Transform = scale * rotation * translation;
cagePieces[i].Body = new PhysPolygon( .014f, size, new Vector2( pos.X, pos.Y ), 1f );
cagePieces[i].Body.Flags = BodyFlags.Anchored;
cagePieces[i].Body.Parent = this;
Screen.PhysicsSpace.AddBody( cagePieces[i].Body );
}
}
