#region License Information
/* HeuristicLab
 * Copyright (C) 2002-2015 Joseph Helm and Heuristic and Evolutionary Algorithms Laboratory (HEAL)
 *
 * This file is part of HeuristicLab.
 *
 * HeuristicLab is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * HeuristicLab is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
 */
#endregion

using SharpDX;
using SharpDX.Toolkit.Graphics;
using Buffer = SharpDX.Toolkit.Graphics.Buffer;

namespace PackingPlanVisualizations {

  public class BasicCuboidShape {
    public Vector3 ShapeSize { get; private set; }
    public Vector3 ShapePosition { get; private set; }
    public int ShapeID { get; private set; }
    public int Material { get; private set; }


    private VertexPositionColorNormal[] shapeTriangleVertices;
    private VertexPositionColorNormal[] shapeLineVertices;

    public BasicCuboidShape(Vector3 size, Vector3 position, int shapeNr, int material) {
      ShapeSize = size;
      ShapePosition = position;
      ShapeID = shapeNr;
      Material = material;
    }
    public BasicCuboidShape(Vector3 size, int shapeNr) : this(size, new Vector3(0, 0, 0), shapeNr, 0) { }

    public void RenderShapeLines(GraphicsDevice device) {
      RenderShapeLines(device, new Color(255, 255, 255));
    }
    public void RenderShapeLines(GraphicsDevice device, Color color) {
      shapeLineVertices =
        new CuboidShapePreparations(ShapeSize, ShapePosition, color).CreateVertexDefinitionsForEdgeLines();
      var shapeLineBuffer = Buffer.Vertex.New(device, shapeLineVertices);
      var inputLayoutLine = VertexInputLayout.FromBuffer(0, shapeLineBuffer);

      device.SetVertexBuffer(shapeLineBuffer);
      device.SetVertexInputLayout(inputLayoutLine);
      device.Draw(PrimitiveType.LineList, shapeLineBuffer.ElementCount);
    }

    public void RenderShapeTriangles(GraphicsDevice device) {
      RenderShapeTriangles(device, Material == 0 ? new Color(60, 60, 60) : new Color(0, 0, 0));
    }

    public void RenderShapeTriangles(GraphicsDevice device, Color color) {
      shapeTriangleVertices =
        new CuboidShapePreparations(ShapeSize, ShapePosition, color).CreateVertexDefinitionsForTriangles();
      var shapeTriangleBuffer = Buffer.Vertex.New(device, shapeTriangleVertices);
      var inputLayoutTriangles = VertexInputLayout.FromBuffer(0, shapeTriangleBuffer);

      device.SetVertexBuffer(shapeTriangleBuffer);
      device.SetVertexInputLayout(inputLayoutTriangles);
      device.Draw(PrimitiveType.TriangleList, shapeTriangleBuffer.ElementCount);
    }

    public void RenderShapeTrianglesAndLines(GraphicsDevice device) {
      RenderShapeLines(device);
      RenderShapeTriangles(device);
    }

    public Vector3 CalculatePositionRelativeToBottomLeftBackCorner(Vector3 itemSize, Vector3 itemPosition) {
      Vector3 newPosition = itemPosition - (ShapeSize / 2 - itemSize / 2);
      return newPosition;
    }
  }
}