Nez.SpringGrid.SpringGrid C# (CSharp) Méthode

		public SpringGrid( Rectangle gridSize, Vector2 spacing )
		{
			_gridSize = gridSize;
			var springList = new List<Spring>();

			// we offset the gridSize location by half-spacing so the padding is applied evenly all around
			gridSize.Location -= spacing.ToPoint();
			gridSize.Width += (int)spacing.X;
			gridSize.Height += (int)spacing.Y;

			var numColumns = (int)( gridSize.Width / spacing.X ) + 1;
			var numRows = (int)( gridSize.Height / spacing.Y ) + 1;
			_points = new PointMass[numColumns, numRows];

			// these fixed points will be used to anchor the grid to fixed positions on the screen
			var fixedPoints = new PointMass[numColumns, numRows];

			// create the point masses
			int column = 0, row = 0;
			for( float y = gridSize.Top; y <= gridSize.Bottom; y += spacing.Y )
			{
				for( float x = gridSize.Left; x <= gridSize.Right; x += spacing.X )
				{
					_points[column, row] = new PointMass( new Vector3( x, y, 0 ), 1 );
					fixedPoints[column, row] = new PointMass( new Vector3( x, y, 0 ), 0 );
					column++;
				}
				row++;
				column = 0;
			}

			// link the point masses with springs
			for( var y = 0; y < numRows; y++ )
			{
				for( var x = 0; x < numColumns; x++ )
				{
					if( x == 0 || y == 0 || x == numColumns - 1 || y == numRows - 1 ) // anchor the border of the grid
						springList.Add( new Spring( fixedPoints[x, y], _points[x, y], 0.1f, 0.1f ) );
					else if( x % 3 == 0 && y % 3 == 0 ) // loosely anchor 1/9th of the point masses
						springList.Add( new Spring( fixedPoints[x, y], _points[x, y], 0.002f, 0.02f ) );

					const float stiffness = 0.28f;
					const float damping = 0.06f;

					if( x > 0 )
						springList.Add( new Spring( _points[x - 1, y], _points[x, y], stiffness, damping ) );
					if( y > 0 )
						springList.Add( new Spring( _points[x, y - 1], _points[x, y], stiffness, damping ) );
				}
			}

			_springs = springList.ToArray();
		}