package StevenDimDoors.mod_pocketDim.schematic;

import java.util.ArrayList;

import net.minecraft.block.Block;
import net.minecraft.block.BlockComparator;
import net.minecraft.block.BlockDoor;
import net.minecraft.block.BlockRedstoneRepeater;
import net.minecraft.block.BlockStairs;
import StevenDimDoors.mod_pocketDim.Point3D;
import StevenDimDoors.mod_pocketDim.mod_pocketDim;
import StevenDimDoors.mod_pocketDim.blocks.dimDoor;

public class BlockRotator
{
	//This class is temporary. It's just a place in which to hold the old block rotation and transformation code
	//until we can rewrite it.
	
	public final static int EAST_DOOR_METADATA = 0;
	private final static int SOUTH_DOOR_METADATA = 1;
	private final static int WEST_DOOR_METADATA = 2;
	public final static int NORTH_DOOR_METADATA = 3;
	
	private final static ArrayList<Integer> metadataFlipList = new ArrayList<Integer>();
	
	static
	{
		metadataFlipList.add(Block.dispenser.blockID);
		metadataFlipList.add(Block.stairsStoneBrick.blockID);
		metadataFlipList.add(Block.lever.blockID);
		metadataFlipList.add(Block.stoneButton.blockID);
		metadataFlipList.add(Block.redstoneRepeaterIdle.blockID);
		metadataFlipList.add(Block.redstoneRepeaterActive.blockID);
		metadataFlipList.add(Block.tripWireSource.blockID);
		metadataFlipList.add(Block.torchWood.blockID);
		metadataFlipList.add(Block.torchRedstoneIdle.blockID);
		metadataFlipList.add(Block.torchRedstoneActive.blockID);
		metadataFlipList.add(Block.doorIron.blockID);
		metadataFlipList.add(Block.doorWood.blockID);
		metadataFlipList.add(Block.pistonBase.blockID);
		metadataFlipList.add(Block.pistonStickyBase.blockID);
		metadataFlipList.add(Block.pistonExtension.blockID);
		metadataFlipList.add(Block.redstoneComparatorIdle.blockID);
		metadataFlipList.add(Block.redstoneComparatorActive.blockID);
		metadataFlipList.add(Block.signPost.blockID);
		metadataFlipList.add(Block.signWall.blockID);
		metadataFlipList.add(Block.skull.blockID);
		metadataFlipList.add(Block.ladder.blockID);
		metadataFlipList.add(Block.vine.blockID);
		metadataFlipList.add(Block.anvil.blockID);
		metadataFlipList.add(Block.chest.blockID);
		metadataFlipList.add(Block.chestTrapped.blockID);
		metadataFlipList.add(Block.hopperBlock.blockID);
		metadataFlipList.add(Block.stairsNetherBrick.blockID);
		metadataFlipList.add(Block.stairsCobblestone.blockID);
		metadataFlipList.add(Block.stairsNetherBrick.blockID);
		metadataFlipList.add(Block.stairsNetherQuartz.blockID);
		metadataFlipList.add(Block.stairsSandStone.blockID);
		metadataFlipList.add(mod_pocketDim.dimDoor.blockID);
		metadataFlipList.add(mod_pocketDim.ExitDoor.blockID);
	}

	public static int transformMetadata(int metadata, int orientation, int blockID)
	{
		//TODO: Replace this horrible function with something prettier. We promise we will for the next version,
		//after switching to MC 1.6. PADRE, PLEASE FORGIVE ME.
		
		//Hax to fix negative orientations
		orientation += 1 << 16;
		orientation %= 4;
		
		if (metadataFlipList.contains(blockID))
		{
			switch (orientation)
			{
			case EAST_DOOR_METADATA:

				if (blockID == Block.hopperBlock.blockID)
				{
					switch (metadata)
					{
					case 2:
						metadata = 5;
						break;
					case 3:
						metadata = 4;
						break;
					case 4:
						metadata = 2;
						break;
					case 5:
						metadata = 3;
						break;
					}
				}
				if(Block.blocksList[blockID] instanceof BlockStairs)
				{

					switch (metadata)
					{
					case 0:
						metadata = 2;
						break;
					case 1:
						metadata = 3;
						break;
					case 2:
						metadata = 1;
						break;
					case 3:
						metadata = 0;
						break;
					case 7:
						metadata = 4;
						break;
					case 6:
						metadata = 5;
						break;
					case 5:
						metadata = 7;
						break;
					case 4:
						metadata = 6;
						break;

					}
				}

				else if(blockID== Block.chest.blockID||blockID== Block.chestTrapped.blockID||blockID== Block.ladder.blockID)
				{
					switch (metadata)
					{

					case 2:
						metadata = 5;
						break;
					case 3:
						metadata = 4;
						break;					
					case 4:
						metadata = 2;
						break;
					case 5:
						metadata = 3;
						break;
					}

				}
				else if (blockID==Block.vine.blockID)
				{
					switch (metadata)
					{

					case 1:
						metadata = 2;
						break;
					case 2:
						metadata = 4;
						break;					
					case 4:
						metadata = 8;
						break;
					case 8:
						metadata = 1;
						break;
					}
				}
				else if(blockID== Block.lever.blockID||blockID== Block.stoneButton.blockID||blockID== Block.woodenButton.blockID||blockID== Block.torchWood.blockID||blockID== Block.torchRedstoneIdle.blockID||blockID== Block.torchRedstoneActive.blockID)
				{
					switch (metadata)
					{
					case 12:
						metadata = 9;
						break;
					case 11:
						metadata = 10;
						break;
					case 10:
						metadata = 12;
						break;
					case 9:
						metadata = 11;
						break;					
					case 2:
						metadata = 4;
						break;
					case 3:
						metadata = 2;
						break;
					case 1:
						metadata = 3;
						break;
					case 4:
						metadata = 1;
						break;
					}
				}
				else if(blockID== Block.pistonBase.blockID||blockID==Block.pistonExtension.blockID||blockID==Block.pistonStickyBase.blockID||blockID==Block.dispenser.blockID||blockID==Block.dropper.blockID)
				{
					switch (metadata)
					{
					case 4:
						metadata = 2;
						break;
					case 5:
						metadata = 3;
						break;
					case 13:
						metadata = 11;
						break;
					case 12:
						metadata = 10;
						break;
					case 3:
						metadata = 4;
						break;
					case 2:
						metadata = 5;
						break;
					case 11:
						metadata = 12;
						break;
					case 10:
						metadata = 13;
						break;
					}
				}
				else if(Block.blocksList[blockID] instanceof BlockRedstoneRepeater || Block.blocksList[blockID] instanceof BlockDoor || Block.blocksList[blockID] instanceof dimDoor || blockID== Block.tripWireSource.blockID || Block.blocksList[blockID] instanceof BlockComparator)
				{
					switch (metadata)
					{
					case 0:
						metadata = 1;
						break;
					case 1:
						metadata = 2;
						break;
					case 2:
						metadata = 3;
						break;
					case 3:
						metadata = 0;
						break;
					case 4:
						metadata = 5;
						break;
					case 5:
						metadata = 6;
						break;
					case 6:
						metadata = 7;
						break;
					case 7:
						metadata = 4;
						break;
					case 8:
						metadata = 9;
						break;
					case 9:
						metadata = 10;
						break;
					case 10:
						metadata = 11;
						break;
					case 11:
						metadata = 8;
						break;
					case 12:
						metadata = 13;
						break;
					case 13:
						metadata = 14;
						break;
					case 14:
						metadata = 15;
						break;
					case 15:
						metadata = 12;
						break;
					}
				}
				break;
			case SOUTH_DOOR_METADATA:

				if (blockID == Block.hopperBlock.blockID)
				{
					switch (metadata)
					{
					case 2:
						metadata = 3;
						break;
					case 3:
						metadata = 2;
						break;
					case 4:
						metadata = 5;
						break;
					case 5:
						metadata = 4;
						break;
					}
				}
				
				if(Block.blocksList[blockID] instanceof BlockStairs)
				{
					switch (metadata)
					{
					case 0:
						metadata = 1;
						break;
					case 1:
						metadata = 0;
						break;
					case 2:
						metadata = 3;
						break;
					case 3:
						metadata = 2;
						break;
					case 7:
						metadata = 6;
						break;
					case 6:
						metadata = 7;
						break;
					case 5:
						metadata = 4;
						break;
					case 4:
						metadata = 5;
						break;
					}
				}

				else if(blockID== Block.chest.blockID||blockID== Block.chestTrapped.blockID||blockID==Block.ladder.blockID)
				{
					switch (metadata)
					{
					case 2:
						metadata = 3;
						break;
					case 3:
						metadata = 2;
						break;					
					case 4:
						metadata = 5;
						break;
					case 5:
						metadata = 4;
						break;
					}

				}

				else	if(blockID==Block.vine.blockID)
				{
					switch (metadata)
					{

					case 1:
						metadata = 4;
						break;
					case 2:
						metadata = 8;
						break;					
					case 4:
						metadata = 1;
						break;
					case 8:
						metadata = 2;
						break;
					}
				}




				else if(blockID== Block.lever.blockID||blockID== Block.torchWood.blockID||blockID== Block.torchRedstoneIdle.blockID||blockID== Block.torchRedstoneActive.blockID)
				{
					switch (metadata)
					{
					case 12:
						metadata = 11;
						break;
					case 11:
						metadata = 12;
						break;
					case 10:
						metadata = 9;
						break;
					case 9:
						metadata = 10;
						break;					
					case 2:
						metadata = 1;
						break;
					case 3:
						metadata = 4;
						break;
					case 1:
						metadata = 2;
						break;
					case 4:
						metadata = 3;

						break;

					}

				}

				else	if(blockID== Block.pistonBase.blockID||blockID==Block.pistonStickyBase.blockID||blockID==Block.dispenser.blockID||blockID==Block.dropper.blockID)
				{
					switch (metadata)
					{
					case 4:
						metadata = 5;
						break;
					case 5:
						metadata = 4;
						break;
					case 13:
						metadata = 12;
						break;
					case 12:
						metadata = 13;
						break;
					case 3:
						metadata = 2;
						break;
					case 2:
						metadata = 3;
						break;
					case 11:
						metadata = 10;
						break;
					case 10:
						metadata = 11;
						break;

					}



				}

				else	if(Block.blocksList[blockID] instanceof BlockRedstoneRepeater ||Block.blocksList[blockID] instanceof BlockDoor || Block.blocksList[blockID] instanceof dimDoor || blockID== Block.tripWireSource.blockID||Block.blocksList[blockID] instanceof BlockComparator)
				{
					switch (metadata)
					{
					case 0:
						metadata = 2;
						break;
					case 1:
						metadata = 3;
						break;
					case 2:
						metadata = 0;
						break;
					case 3:
						metadata = 1;
						break;
					case 4:
						metadata = 6;
						break;
					case 5:
						metadata = 7;
						break;
					case 6:
						metadata = 4;
						break;
					case 7:
						metadata = 5;
						break;
					case 8:
						metadata = 10;
						break;
					case 9:
						metadata = 11;
						break;
					case 10:
						metadata = 8;
						break;
					case 11:
						metadata = 9;
						break;
					case 12:
						metadata = 14;
						break;
					case 13:
						metadata = 15;
						break;
					case 14:
						metadata = 12;
						break;
					case 15:
						metadata = 13;
						break;


					}



				}

				break;
			case WEST_DOOR_METADATA:

				if (blockID == Block.hopperBlock.blockID)
				{
					switch (metadata)
					{
					case 2:
						metadata = 4;
						break;
					case 3:
						metadata = 5;
						break;
					case 4:
						metadata = 3;
						break;
					case 5:
						metadata = 2;
						break;
					}
				}
				
				if(Block.blocksList[blockID] instanceof BlockStairs)
				{

					switch (metadata)
					{
					case 2:
						metadata = 0;
						break;
					case 3:
						metadata = 1;
						break;
					case 1:
						metadata = 2;
						break;
					case 0:
						metadata = 3;
						break;
					case 4:
						metadata = 7;
						break;
					case 5:
						metadata = 6;
						break;
					case 7:
						metadata = 5;
						break;
					case 6:
						metadata = 4;
						break;

					}
				}

				else	if(blockID== Block.chest.blockID||blockID== Block.chestTrapped.blockID||blockID==Block.ladder.blockID)
				{
					switch (metadata)
					{

					case 2:
						metadata = 4;
						break;
					case 3:
						metadata = 5;
						break;					
					case 4:
						metadata = 3;
						break;
					case 5:
						metadata = 2;
						break;



					}

				}

				else	if(blockID==Block.vine.blockID)
				{
					switch (metadata)
					{

					case 1:
						metadata = 8;
						break;
					case 2:
						metadata = 1;
						break;					
					case 4:
						metadata = 2;
						break;
					case 8:
						metadata = 4;
						break;
					}
				}




				else	if(blockID== Block.lever.blockID||blockID== Block.torchWood.blockID||blockID== Block.torchRedstoneIdle.blockID||blockID== Block.torchRedstoneActive.blockID)
				{
					switch (metadata)
					{
					case 9:
						metadata = 12;
						break;
					case 10:
						metadata = 11;
						break;
					case 12:
						metadata = 10;
						break;
					case 11:
						metadata = 9;
						break;					
					case 4:
						metadata = 2;
						break;
					case 2:
						metadata = 3;
						break;
					case 3:
						metadata = 1;
						break;
					case 1:
						metadata = 4;

						break;

					}

				}

				else	if(blockID== Block.pistonBase.blockID||blockID==Block.pistonStickyBase.blockID||blockID==Block.dispenser.blockID||blockID==Block.dropper.blockID)

				{
					switch (metadata)
					{
					case 2:
						metadata = 4;
						break;
					case 3:
						metadata = 5;
						break;
					case 11:
						metadata = 13;
						break;
					case 10:
						metadata = 12;
						break;
					case 4:
						metadata = 3;
						break;
					case 5:
						metadata = 2;
						break;
					case 12:
						metadata = 11;
						break;
					case 13:
						metadata = 10;
						break;
					}
				}
				else	if(Block.blocksList[blockID] instanceof BlockRedstoneRepeater ||Block.blocksList[blockID] instanceof BlockDoor || Block.blocksList[blockID] instanceof dimDoor || blockID== Block.tripWireSource.blockID||Block.blocksList[blockID] instanceof BlockComparator)
				{
					switch (metadata)
					{
					case 1:
						metadata = 0;
						break;
					case 2:
						metadata = 1;
						break;
					case 3:
						metadata = 2;
						break;
					case 0:
						metadata = 3;
						break;
					case 5:
						metadata = 4;
						break;
					case 6:
						metadata = 5;
						break;
					case 7:
						metadata = 6;
						break;
					case 4:
						metadata = 7;
						break;
					case 9:
						metadata = 8;
						break;
					case 10:
						metadata = 9;
						break;
					case 11:
						metadata = 10;
						break;
					case 8:
						metadata = 11;
						break;
					case 13:
						metadata = 12;
						break;
					case 14:
						metadata = 13;
						break;
					case 15:
						metadata = 14;
						break;
					case 12:
						metadata = 15;
						break;
					}
				}
				break;
			case NORTH_DOOR_METADATA:
				/**
				 * this is the default case- never need to change anything here
				 * 
				 */
				break;
			}
		}
		return metadata;
	}
	
	public static void transformPoint(Point3D position, Point3D srcOrigin, int angle, Point3D destOrigin)
	{
		//This function receives a position (e.g. point in schematic space), translates it relative
		//to a source coordinate system (e.g. the point that will be the center of a schematic),
		//then rotates and translates it to obtain the corresponding point in a destination
		//coordinate system (e.g. the location of the entry rift in the pocket being generated).
		//The result is returned by overwriting the original position so that new object references
		//aren't needed. That way, repeated use of this function will not incur as much overhead.
		
		//Position is only overwritten at the end, so it's okay to provide it as srcOrigin or destOrigin as well.
		
		int tx = position.getX() - srcOrigin.getX();
		int ty = position.getY() - srcOrigin.getY();
		int tz = position.getZ() - srcOrigin.getZ();
		
		//"int angle" specifies a rotation consistent with Minecraft's orientation system.
		//That means each increment of 1 in angle would be a 90-degree clockwise turn.
		//Given a starting direction A and a destination direction B, the rotation would be
		//calculated by (B - A).

		//Adjust angle into the expected range
		if (angle < 0)
		{
			int correction = -(angle / 4);
			angle = angle + 4 * (correction + 1);
		}
		angle = angle % 4;
		
		int rx;
		int rz;
		switch (angle)
		{
			case 0: //No rotation
				rx = tx;
				rz = tz;
				break;
			case 1: //90 degrees clockwise
				rx = -tz;
				rz = tx;
				break;
			case 2: //180 degrees
				rx = -tx;
				rz = -tz;
				break;
			case 3: //270 degrees clockwise
				rx = tz;
				rz = -tx;
				
				break;
			default: //This should never happen
				throw new IllegalStateException("Invalid angle value. This should never happen!");
		}
		
		position.setX( rx + destOrigin.getX() );
		position.setY( ty + destOrigin.getY() );
		position.setZ( rz + destOrigin.getZ() );
	}
}