* Copyright (c) 2011-2014, SpaceToad and the BuildCraft Team

* http://www.mod-buildcraft.com

*

* BuildCraft is distributed under the terms of the Minecraft Mod Public

* License 1.0, or MMPL. Please check the contents of the license located in

* http://www.mod-buildcraft.com/MMPL-1.0.txt

*/

  /** X vertex coordinate of lower box corner */

  public final float posX1;

  /** Y vertex coordinate of lower box corner */

  public final float posY1;

  /** Z vertex coordinate of lower box corner */

  public final float posZ1;

  /** X vertex coordinate of upper box corner */

  public final float posX2;

  /** Y vertex coordinate of upper box corner */

  public final float posY2;

  /** Z vertex coordinate of upper box corner */

  public final float posZ2;

  /**

   * The (x,y,z) vertex positions and (u,v) texture coordinates for each of

   * the 8 points on a cube

   */

  private PositionTextureVertex[] vertexPositions;

  /** An array of 6 TexturedQuads, one for each face of a cube */

  private TexturedQuad[] quadList;

  public ModelFrustum(ModelRenderer par1ModelRenderer, int textureOffsetX, int textureOffsetY, float originXI,

      float originYI, float originZI, int bottomWidth,

      int bottomDepth, int topWidth, int topDepth, int height, float scaleFactor) {

    float originX = originXI;

    float originY = originYI;

    float originZ = originZI;

    this.posX1 = originX;

    this.posY1 = originY;

    this.posZ1 = originZ;

    this.vertexPositions = new PositionTextureVertex[8];

    this.quadList = new TexturedQuad[6];

    float bottomDeltaX = bottomWidth > topWidth ? 0 : (topWidth - bottomWidth) / 2f;

    float topDeltaX = bottomWidth > topWidth ? (bottomWidth - topWidth) / 2f : 0;

    float bottomDeltaZ = bottomDepth > topDepth ? 0 : (topDepth - bottomDepth) / 2f;

    float topDeltaZ = bottomDepth > topDepth ? (bottomDepth - topDepth) / 2f : 0;

    float targetX = originX + Math.max((float) bottomWidth, (float) topWidth);

    float targetY = originY + height;

    float targetZ = originZ + Math.max((float) bottomDepth, (float) topDepth);

    this.posX2 = targetX;

    this.posY2 = targetY;

    this.posZ2 = targetZ;

    originX -= scaleFactor;

    originY -= scaleFactor;

    originZ -= scaleFactor;

    targetX += scaleFactor;

    targetY += scaleFactor;

    targetZ += scaleFactor;

    if (par1ModelRenderer.mirror) {

      float var14 = targetX;

      targetX = originX;

      originX = var14;

    }

    PositionTextureVertex var23 = new PositionTextureVertex(originX + bottomDeltaX, originY, originZ + bottomDeltaZ, 0.0F, 0.0F);

    PositionTextureVertex var15 = new PositionTextureVertex(targetX - bottomDeltaX, originY, originZ + bottomDeltaZ, 0.0F, 8.0F);

    PositionTextureVertex var16 = new PositionTextureVertex(targetX - topDeltaX, targetY, originZ + topDeltaZ, 8.0F, 8.0F);

    PositionTextureVertex var17 = new PositionTextureVertex(originX + topDeltaX, targetY, originZ + topDeltaZ, 8.0F, 0.0F);

    PositionTextureVertex var18 = new PositionTextureVertex(originX + bottomDeltaX, originY, targetZ - bottomDeltaZ, 0.0F, 0.0F);

    PositionTextureVertex var19 = new PositionTextureVertex(targetX - bottomDeltaX, originY, targetZ - bottomDeltaZ, 0.0F, 8.0F);

    PositionTextureVertex var20 = new PositionTextureVertex(targetX - topDeltaX, targetY, targetZ - topDeltaZ, 8.0F, 8.0F);

    PositionTextureVertex var21 = new PositionTextureVertex(originX + topDeltaX, targetY, targetZ - topDeltaZ, 8.0F, 0.0F);

    this.vertexPositions[0] = var23;

    this.vertexPositions[1] = var15;

    this.vertexPositions[2] = var16;

    this.vertexPositions[3] = var17;

    this.vertexPositions[4] = var18;

    this.vertexPositions[5] = var19;

    this.vertexPositions[6] = var20;

    this.vertexPositions[7] = var21;

    int depth = Math.max(bottomDepth, topDepth);

    int width = Math.max(bottomWidth, topWidth);

    this.quadList[0] = new TexturedQuad(new PositionTextureVertex[] {

        var19, var15, var16, var20 }, textureOffsetX + depth + width,

        textureOffsetY + depth,

        textureOffsetX + depth + width + depth, textureOffsetY + depth + height, par1ModelRenderer.textureWidth, par1ModelRenderer.textureHeight);

    this.quadList[1] = new TexturedQuad(new PositionTextureVertex[] {

        var23, var18, var21, var17 }, textureOffsetX, textureOffsetY

        + depth, textureOffsetX

        + depth, textureOffsetY + depth + height, par1ModelRenderer.textureWidth, par1ModelRenderer.textureHeight);

    this.quadList[2] = new TexturedQuad(new PositionTextureVertex[] {

        var19, var18, var23, var15 }, textureOffsetX + depth,

        textureOffsetY, textureOffsetX

        + depth + width, textureOffsetY + depth, par1ModelRenderer.textureWidth, par1ModelRenderer.textureHeight);

    this.quadList[3] = new TexturedQuad(new PositionTextureVertex[] {

        var16, var17, var21, var20 }, textureOffsetX + depth + width,

        textureOffsetY + depth,

        textureOffsetX + depth + width + width, textureOffsetY, par1ModelRenderer.textureWidth, par1ModelRenderer.textureHeight);

    this.quadList[4] = new TexturedQuad(new PositionTextureVertex[] {

        var15, var23, var17, var16 }, textureOffsetX + depth,

        textureOffsetY + depth,

        textureOffsetX + depth + width, textureOffsetY + depth + height, par1ModelRenderer.textureWidth, par1ModelRenderer.textureHeight);

    this.quadList[5] = new TexturedQuad(new PositionTextureVertex[] {

        var18, var19, var20, var21 }, textureOffsetX + depth + width

        + depth, textureOffsetY

        + depth, textureOffsetX + depth + width + depth + width, textureOffsetY + depth + height, par1ModelRenderer.textureWidth,

        par1ModelRenderer.textureHeight);

    if (par1ModelRenderer.mirror) {

      for (TexturedQuad element : this.quadList) {

        element.flipFace();

      }

    }

  }

  /**

   * Draw the six sided box defined by this ModelBox

   */

  public void render(Tessellator par1Tessellator, float par2) {

    for (TexturedQuad element : this.quadList) {

      element.draw(par1Tessellator, par2);

    }

  }

}