#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;

namespace PackingPlanVisualizations {
  public class CuboidShapePreparations {

    #region Private Members 
    //Define the shape in a way so that the position is in the center of the shape.
    //Define the 8 defining points of the cube
    Vector3 topLeftFront;
    Vector3 bottomLeftFront;
    Vector3 topRightFront;
    Vector3 bottomRightFront;
    Vector3 topLeftBack;
    Vector3 topRightBack;
    Vector3 bottomLeftBack;
    Vector3 bottomRightBack;

    //Define normal vectors of the 6 surfaces
    Vector3 frontNormal;
    Vector3 backNormal;
    Vector3 topNormal;
    Vector3 bottomNormal;
    Vector3 leftNormal;
    Vector3 rightNormal;

    //Define colors of the 6 surfaces
    Color frontColor = Color.Black;
    Color backColor = Color.Black;
    Color topColor = Color.Black;
    Color bottomColor = Color.Black;
    Color leftColor = Color.Black;
    Color rightColor = Color.Black;

    //Define positions of the textures
    Vector2 textureTopLeft;
    Vector2 textureTopRight;
    Vector2 textureBottomLeft;
    Vector2 textureBottomRight;
    #endregion Private Members


    public CuboidShapePreparations(Vector3 shapeSize, Vector3 shapePosition) : this (shapeSize, shapePosition, Color.Black) { }
    public CuboidShapePreparations(Vector3 shapeSize, Vector3 shapePosition, Color color) {
      var halfShapeSize = shapeSize / 2;
      //Define the shape in a way so that the position is in the center of the shape.
      //Define the 8 defining points of the cube
      topLeftFront = shapePosition + new Vector3(-1.0f, 1.0f, 1.0f) * halfShapeSize;
      bottomLeftFront = shapePosition + new Vector3(-1.0f, -1.0f, 1.0f) * halfShapeSize;
      topRightFront = shapePosition + new Vector3(1.0f, 1.0f, 1.0f) * halfShapeSize;
      bottomRightFront = shapePosition + new Vector3(1.0f, -1.0f, 1.0f) * halfShapeSize;
      topLeftBack = shapePosition + new Vector3(-1.0f, 1.0f, -1.0f) * halfShapeSize;
      topRightBack = shapePosition + new Vector3(1.0f, 1.0f, -1.0f) * halfShapeSize;
      bottomLeftBack = shapePosition + new Vector3(-1.0f, -1.0f, -1.0f) * halfShapeSize;
      bottomRightBack = shapePosition + new Vector3(1.0f, -1.0f, -1.0f) * halfShapeSize;

      //Define normal vectors of the 6 surfaces
      frontNormal = new Vector3(0.0f, 0.0f, 1.0f) * halfShapeSize;
      backNormal = new Vector3(0.0f, 0.0f, -1.0f) * halfShapeSize;
      topNormal = new Vector3(0.0f, 1.0f, 0.0f) * halfShapeSize;
      bottomNormal = new Vector3(0.0f, -1.0f, 0.0f) * halfShapeSize;
      leftNormal = new Vector3(-1.0f, 0.0f, 0.0f) * halfShapeSize;
      rightNormal = new Vector3(1.0f, 0.0f, 0.0f) * halfShapeSize;

      //Define colors of the 6 surfaces
      frontColor = color;
      backColor = color;
      topColor = color;
      bottomColor = color;
      leftColor = color;
      rightColor = color;

      //Define positions of the textures
      textureTopLeft = new Vector2(0.5f * halfShapeSize.X, 0.0f * halfShapeSize.Y);
      textureTopRight = new Vector2(0.0f * halfShapeSize.X, 0.0f * halfShapeSize.Y);
      textureBottomLeft = new Vector2(0.5f * halfShapeSize.X, 0.5f * halfShapeSize.Y);
      textureBottomRight = new Vector2(0.0f * halfShapeSize.X, 0.5f * halfShapeSize.Y);
    }

    public VertexPositionColorNormal[] CreateVertexDefinitionsForTriangles () {
      //Definition of the actual triangles
      VertexPositionColorNormal[] shapeVertices = new VertexPositionColorNormal[36];

      // Front face.
      shapeVertices[0] = new VertexPositionColorNormal(frontColor, topLeftFront, frontNormal);
      shapeVertices[1] = new VertexPositionColorNormal(frontColor, bottomLeftFront, frontNormal);
      shapeVertices[2] = new VertexPositionColorNormal(frontColor, topRightFront, frontNormal);

      shapeVertices[3] = new VertexPositionColorNormal(frontColor, bottomLeftFront, frontNormal);
      shapeVertices[4] = new VertexPositionColorNormal(frontColor, bottomRightFront, frontNormal);
      shapeVertices[5] = new VertexPositionColorNormal(frontColor, topRightFront, frontNormal);


      // Back face.
      shapeVertices[6] = new VertexPositionColorNormal(backColor, topLeftBack, backNormal);
      shapeVertices[7] = new VertexPositionColorNormal(backColor, topRightBack, backNormal);
      shapeVertices[8] = new VertexPositionColorNormal(backColor, bottomLeftBack, backNormal);

      shapeVertices[9] = new VertexPositionColorNormal(backColor, bottomLeftBack, backNormal);
      shapeVertices[10] = new VertexPositionColorNormal(backColor, topRightBack, backNormal);
      shapeVertices[11] = new VertexPositionColorNormal(backColor, bottomRightBack, backNormal);


      // Top face.
      shapeVertices[12] = new VertexPositionColorNormal(topColor, topLeftFront, topNormal);
      shapeVertices[13] = new VertexPositionColorNormal(topColor, topRightBack, topNormal);
      shapeVertices[14] = new VertexPositionColorNormal(topColor, topLeftBack, topNormal);

      shapeVertices[15] = new VertexPositionColorNormal(topColor, topLeftFront, topNormal);
      shapeVertices[16] = new VertexPositionColorNormal(topColor, topRightFront, topNormal);
      shapeVertices[17] = new VertexPositionColorNormal(topColor, topRightBack, topNormal);


      // Bottom face. 
      shapeVertices[18] = new VertexPositionColorNormal(bottomColor, bottomLeftFront, bottomNormal);
      shapeVertices[19] = new VertexPositionColorNormal(bottomColor, bottomLeftBack, bottomNormal);
      shapeVertices[20] = new VertexPositionColorNormal(bottomColor, bottomRightBack, bottomNormal);

      shapeVertices[21] = new VertexPositionColorNormal(bottomColor, bottomLeftFront, bottomNormal);
      shapeVertices[22] = new VertexPositionColorNormal(bottomColor, bottomRightBack, bottomNormal);
      shapeVertices[23] = new VertexPositionColorNormal(bottomColor, bottomRightFront, bottomNormal);


      // Left face.
      shapeVertices[24] = new VertexPositionColorNormal(leftColor, topLeftFront, leftNormal);
      shapeVertices[25] = new VertexPositionColorNormal(leftColor, bottomLeftBack, leftNormal);
      shapeVertices[26] = new VertexPositionColorNormal(leftColor, bottomLeftFront, leftNormal);

      shapeVertices[27] = new VertexPositionColorNormal(leftColor, topLeftBack, leftNormal);
      shapeVertices[28] = new VertexPositionColorNormal(leftColor, bottomLeftBack, leftNormal);
      shapeVertices[29] = new VertexPositionColorNormal(leftColor, topLeftFront, leftNormal);


      // Right face. 
      shapeVertices[30] = new VertexPositionColorNormal(rightColor, topRightFront, rightNormal);
      shapeVertices[31] = new VertexPositionColorNormal(rightColor, bottomRightFront, rightNormal);
      shapeVertices[32] = new VertexPositionColorNormal(rightColor, bottomRightBack, rightNormal);

      shapeVertices[33] = new VertexPositionColorNormal(rightColor, topRightBack, rightNormal);
      shapeVertices[34] = new VertexPositionColorNormal(rightColor, topRightFront, rightNormal);
      shapeVertices[35] = new VertexPositionColorNormal(rightColor, bottomRightBack, rightNormal);

      return shapeVertices;
    }

    public VertexPositionColorNormal[] CreateVertexDefinitionsForEdgeLines() {
      return CreateVertexDefinitionsForEdgeLines(frontColor);
    }

    public VertexPositionColorNormal[] CreateVertexDefinitionsForEdgeLines(Color color) {
      //Definition of the actual lines
      VertexPositionColorNormal[] shapeVertices = new VertexPositionColorNormal[48];

      //shapeVertices[0] = new VertexPositionColorNormal(color, topRightFront, frontNormal);
      //shapeVertices[1] = new VertexPositionColorNormal(color, topLeftFront, frontNormal);
      //shapeVertices[2] = new VertexPositionColorNormal(color, topLeftFront, frontNormal);
      //shapeVertices[3] = new VertexPositionColorNormal(color, bottomLeftFront, frontNormal);
      //shapeVertices[4] = new VertexPositionColorNormal(color, bottomLeftFront, frontNormal);
      //shapeVertices[5] = new VertexPositionColorNormal(color, bottomRightFront, frontNormal);
      //shapeVertices[6] = new VertexPositionColorNormal(color, bottomRightFront, frontNormal);
      //shapeVertices[7] = new VertexPositionColorNormal(color, topRightFront, frontNormal);

      //shapeVertices[8] = new VertexPositionColorNormal(color, topRightBack, backNormal);
      //shapeVertices[9] = new VertexPositionColorNormal(color, topLeftBack, backNormal);
      //shapeVertices[10] = new VertexPositionColorNormal(color, topLeftBack, backNormal);
      //shapeVertices[11] = new VertexPositionColorNormal(color, bottomLeftBack, backNormal);
      //shapeVertices[12] = new VertexPositionColorNormal(color, bottomLeftBack, backNormal);
      //shapeVertices[13] = new VertexPositionColorNormal(color, bottomRightBack, backNormal);
      //shapeVertices[14] = new VertexPositionColorNormal(color, bottomRightBack, backNormal);
      //shapeVertices[15] = new VertexPositionColorNormal(color, topRightBack, backNormal);

      //shapeVertices[16] = new VertexPositionColorNormal(color, topLeftFront, topNormal);
      //shapeVertices[17] = new VertexPositionColorNormal(color, topLeftBack, topNormal);
      //shapeVertices[18] = new VertexPositionColorNormal(color, topRightFront, topNormal);
      //shapeVertices[19] = new VertexPositionColorNormal(color, topRightBack, topNormal);
      //shapeVertices[20] = new VertexPositionColorNormal(color, topLeftFront, topNormal);
      //shapeVertices[21] = new VertexPositionColorNormal(color, topRightFront, topNormal);
      //shapeVertices[22] = new VertexPositionColorNormal(color, topRightBack, topNormal);
      //shapeVertices[23] = new VertexPositionColorNormal(color, topLeftBack, topNormal);

      //shapeVertices[24] = new VertexPositionColorNormal(color, bottomLeftFront, bottomNormal);
      //shapeVertices[25] = new VertexPositionColorNormal(color, bottomRightFront, bottomNormal);
      //shapeVertices[26] = new VertexPositionColorNormal(color, bottomLeftBack, bottomNormal);
      //shapeVertices[27] = new VertexPositionColorNormal(color, bottomRightBack, bottomNormal);
      //shapeVertices[28] = new VertexPositionColorNormal(color, bottomRightFront, bottomNormal);
      //shapeVertices[29] = new VertexPositionColorNormal(color, bottomRightBack, bottomNormal);
      //shapeVertices[30] = new VertexPositionColorNormal(color, bottomLeftFront, bottomNormal);
      //shapeVertices[31] = new VertexPositionColorNormal(color, bottomLeftBack, bottomNormal);

      //shapeVertices[32] = new VertexPositionColorNormal(color, topLeftFront, leftNormal);
      //shapeVertices[33] = new VertexPositionColorNormal(color, topLeftBack, leftNormal);
      //shapeVertices[34] = new VertexPositionColorNormal(color, topLeftBack, leftNormal);
      //shapeVertices[35] = new VertexPositionColorNormal(color, bottomLeftBack, leftNormal);
      //shapeVertices[36] = new VertexPositionColorNormal(color, bottomLeftBack, leftNormal);
      //shapeVertices[37] = new VertexPositionColorNormal(color, bottomLeftFront, leftNormal);
      //shapeVertices[38] = new VertexPositionColorNormal(color, bottomLeftFront, leftNormal);
      //shapeVertices[39] = new VertexPositionColorNormal(color, topLeftFront, leftNormal);

      //shapeVertices[40] = new VertexPositionColorNormal(color, topRightFront, rightNormal);
      //shapeVertices[41] = new VertexPositionColorNormal(color, topRightBack, rightNormal);
      //shapeVertices[42] = new VertexPositionColorNormal(color, topRightBack, rightNormal);
      //shapeVertices[43] = new VertexPositionColorNormal(color, bottomRightBack, rightNormal);
      //shapeVertices[44] = new VertexPositionColorNormal(color, bottomRightBack, rightNormal);
      //shapeVertices[45] = new VertexPositionColorNormal(color, bottomRightFront, rightNormal);
      //shapeVertices[46] = new VertexPositionColorNormal(color, bottomRightFront, rightNormal);
      //shapeVertices[47] = new VertexPositionColorNormal(color, topRightFront, rightNormal);

      Vector3 topRightFrontNormal = (topNormal + rightNormal + frontNormal) / 3;
      Vector3 topRightBackNormal = (topNormal + rightNormal + backNormal) / 3;
      Vector3 topLeftFrontNormal = (topNormal + leftNormal + frontNormal) / 3;
      Vector3 topLeftBackNormal = (topNormal + leftNormal + backNormal) / 3;
      Vector3 bottomRightFrontNormal = (topNormal + rightNormal + frontNormal) / 3;
      Vector3 bottomRightBackNormal = (topNormal + rightNormal + backNormal) / 3;
      Vector3 bottomLeftFrontNormal = (topNormal + leftNormal + frontNormal) / 3;
      Vector3 bottomLeftBackNormal = (topNormal + leftNormal + backNormal) / 3;

      shapeVertices[0] = new VertexPositionColorNormal(color, topRightFront, topRightFrontNormal);
      shapeVertices[1] = new VertexPositionColorNormal(color, topLeftFront, topLeftFrontNormal);
      shapeVertices[2] = new VertexPositionColorNormal(color, topLeftFront, topLeftFrontNormal);
      shapeVertices[3] = new VertexPositionColorNormal(color, bottomLeftFront, bottomLeftFrontNormal);
      shapeVertices[4] = new VertexPositionColorNormal(color, bottomLeftFront, bottomLeftFrontNormal);
      shapeVertices[5] = new VertexPositionColorNormal(color, bottomRightFront, bottomRightFrontNormal);
      shapeVertices[6] = new VertexPositionColorNormal(color, bottomRightFront, bottomRightFrontNormal);
      shapeVertices[7] = new VertexPositionColorNormal(color, topRightFront, topRightFrontNormal);

      shapeVertices[8] = new VertexPositionColorNormal(color, topRightBack, topRightBackNormal);
      shapeVertices[9] = new VertexPositionColorNormal(color, topLeftBack, topLeftBackNormal);
      shapeVertices[10] = new VertexPositionColorNormal(color, topLeftBack, topLeftBackNormal);
      shapeVertices[11] = new VertexPositionColorNormal(color, bottomLeftBack, bottomLeftBackNormal);
      shapeVertices[12] = new VertexPositionColorNormal(color, bottomLeftBack, bottomLeftBackNormal);
      shapeVertices[13] = new VertexPositionColorNormal(color, bottomRightBack, bottomRightBackNormal);
      shapeVertices[14] = new VertexPositionColorNormal(color, bottomRightBack, bottomRightBackNormal);
      shapeVertices[15] = new VertexPositionColorNormal(color, topRightBack, topRightBackNormal);

      shapeVertices[16] = new VertexPositionColorNormal(color, topLeftFront, topLeftFrontNormal);
      shapeVertices[17] = new VertexPositionColorNormal(color, topLeftBack, topLeftBackNormal);
      shapeVertices[18] = new VertexPositionColorNormal(color, topRightFront, topRightFrontNormal);
      shapeVertices[19] = new VertexPositionColorNormal(color, topRightBack, topRightBackNormal);
      shapeVertices[20] = new VertexPositionColorNormal(color, topLeftFront, topLeftFrontNormal);
      shapeVertices[21] = new VertexPositionColorNormal(color, topRightFront, topRightFrontNormal);
      shapeVertices[22] = new VertexPositionColorNormal(color, topRightBack, topRightBackNormal);
      shapeVertices[23] = new VertexPositionColorNormal(color, topLeftBack, topLeftBackNormal);

      shapeVertices[24] = new VertexPositionColorNormal(color, bottomLeftFront, bottomLeftFrontNormal);
      shapeVertices[25] = new VertexPositionColorNormal(color, bottomRightFront, bottomRightFrontNormal);
      shapeVertices[26] = new VertexPositionColorNormal(color, bottomLeftBack, bottomLeftBackNormal);
      shapeVertices[27] = new VertexPositionColorNormal(color, bottomRightBack, bottomRightBackNormal);
      shapeVertices[28] = new VertexPositionColorNormal(color, bottomRightFront, bottomRightFrontNormal);
      shapeVertices[29] = new VertexPositionColorNormal(color, bottomRightBack, bottomRightBackNormal);
      shapeVertices[30] = new VertexPositionColorNormal(color, bottomLeftFront, bottomLeftFrontNormal);
      shapeVertices[31] = new VertexPositionColorNormal(color, bottomLeftBack, bottomLeftBackNormal);

      shapeVertices[32] = new VertexPositionColorNormal(color, topLeftFront, topLeftFrontNormal);
      shapeVertices[33] = new VertexPositionColorNormal(color, topLeftBack, topLeftBackNormal);
      shapeVertices[34] = new VertexPositionColorNormal(color, topLeftBack, topLeftBackNormal);
      shapeVertices[35] = new VertexPositionColorNormal(color, bottomLeftBack, bottomLeftBackNormal);
      shapeVertices[36] = new VertexPositionColorNormal(color, bottomLeftBack, bottomLeftBackNormal);
      shapeVertices[37] = new VertexPositionColorNormal(color, bottomLeftFront, bottomLeftFrontNormal);
      shapeVertices[38] = new VertexPositionColorNormal(color, bottomLeftFront, bottomLeftFrontNormal);
      shapeVertices[39] = new VertexPositionColorNormal(color, topLeftFront, topLeftFrontNormal);

      shapeVertices[40] = new VertexPositionColorNormal(color, topRightFront, topRightFrontNormal);
      shapeVertices[41] = new VertexPositionColorNormal(color, topRightBack, topRightBackNormal);
      shapeVertices[42] = new VertexPositionColorNormal(color, topRightBack, topRightBackNormal);
      shapeVertices[43] = new VertexPositionColorNormal(color, bottomRightBack, bottomRightBackNormal);
      shapeVertices[44] = new VertexPositionColorNormal(color, bottomRightBack, bottomRightBackNormal);
      shapeVertices[45] = new VertexPositionColorNormal(color, bottomRightFront, bottomRightFrontNormal);
      shapeVertices[46] = new VertexPositionColorNormal(color, bottomRightFront, bottomRightFrontNormal);
      shapeVertices[47] = new VertexPositionColorNormal(color, topRightFront, topRightFrontNormal);

      return shapeVertices;
    }


  }
}