public RendererParams( Camera camera,
UserActionInEditor userActionInEditor,
Rectangle selectionRectangle,
EntityCreation entityCreation,
SnapPoint snapPoint )
{
Camera = camera ;
UserActionInEditor = userActionInEditor ;
SelectionRectangle = selectionRectangle ;
EntityCreation = entityCreation ;
SnapPoint = snapPoint ;
ItemsToRender=ItemsToRender.Everything;
}
void drawWorldOrigin( Camera camera )
{
_game.SpriteBatch.Begin( ) ;
Vector2 worldOrigin = Vector2.Transform( Vector2.Zero, camera.Matrix ) ;
_drawing.DrawLine(
_game.SpriteBatch,
worldOrigin + new Vector2( -20, 0 ),
worldOrigin + new Vector2( +20, 0 ),
Constants.Instance.WorldOriginColor,
Constants.Instance.WorldOriginLineThickness ) ;
_drawing.DrawLine(
_game.SpriteBatch,
worldOrigin + new Vector2( 0, -20 ),
worldOrigin + new Vector2( 0, 20 ),
Constants.Instance.WorldOriginColor,
Constants.Instance.WorldOriginLineThickness ) ;
_game.SpriteBatch.End( ) ;
}
void drawGrid( Camera camera )
{
_game.SpriteBatch.Begin( ) ;
int max = Constants.Instance.GridNumberOfGridLines / 2 ;
Color gridColor = Constants.Instance.GridColor ;
int thickness = Constants.Instance.GridLineThickness ;
for( int x = 0; x <= max; x++ )
{
float gridSpacingX = Constants.Instance.GridSpacing.X ;
Vector2 start = Vector2.Transform( new Vector2( x, -max ) * gridSpacingX, camera.Matrix ) ;
Vector2 end = Vector2.Transform( new Vector2( x, max ) * gridSpacingX, camera.Matrix ) ;
_drawing.DrawLine( _game.SpriteBatch, start, end, gridColor, thickness ) ;
start = Vector2.Transform( new Vector2( -x, -max ) * gridSpacingX, camera.Matrix ) ;
end = Vector2.Transform( new Vector2( -x, max ) * gridSpacingX, camera.Matrix ) ;
_drawing.DrawLine( _game.SpriteBatch, start, end, gridColor, thickness ) ;
}
for( int y = 0; y <= max; y++ )
{
float gridSpacingY = Constants.Instance.GridSpacing.Y ;
Vector2 start = Vector2.Transform( new Vector2( -max, y ) * gridSpacingY, camera.Matrix ) ;
Vector2 end = Vector2.Transform( new Vector2( max, y ) * gridSpacingY, camera.Matrix ) ;
_drawing.DrawLine( _game.SpriteBatch, start, end, gridColor, thickness ) ;
start = Vector2.Transform( new Vector2( -max, -y ) * gridSpacingY, camera.Matrix ) ;
end = Vector2.Transform( new Vector2( max, -y ) * gridSpacingY, camera.Matrix ) ;
_drawing.DrawLine( _game.SpriteBatch, start, end, gridColor, thickness ) ;
}
_game.SpriteBatch.End( ) ;
}
public static void Update( MouseState mouseState, Camera camera )
{
_oldState = _currentState ;
_currentState = mouseState ;
adjustWorldPosition( camera ) ;
}
static void adjustWorldPosition( Camera camera )
{
_mouseWorldPos = Vector2.Transform( ScreenPosition, Matrix.Invert( camera.Matrix ) ) ;
_mouseWorldPos = _mouseWorldPos.Round( ) ;
}
public static void UpdateCamera( Camera camera )
{
adjustWorldPosition( camera );
}