summaryrefslogblamecommitdiffstats
path: root/src/Blocks/BlockPortal.h
blob: 3f5d87155c7685137496d73cdd37a9e0d71b791a (plain) (tree)


















                                                  
                                                                       
                                                                                 












                                                                                                                 




                                                                                                                                                      
         
                             
                          

         



 






                                                          
         
                                                           
                                                         


                               




                                                                                                     
 
 
 
                                                                                                                                     
         
                                                                       
                 
                                                                                                                                                                  





                                                                
                                                                                
                                 






                                                             
 
                                                                          

                                                        
                                                                                                                                                  









                                                                                                            
                                                                                
                                 






                                                             
 
                                                                          

                                                        
                                                                                                                                                  










                                                                                                            
 




                                                                       




   

#pragma once

#include "BlockHandler.h"





class cBlockPortalHandler :
	public cBlockHandler
{
public:
	cBlockPortalHandler(BLOCKTYPE a_BlockType)
		: cBlockHandler(a_BlockType)
	{
	}

	virtual bool GetPlacementBlockTypeMeta(
		cChunkInterface & a_ChunkInterface, cPlayer & a_Player,
		int a_BlockX, int a_BlockY, int a_BlockZ, eBlockFace a_BlockFace,
		int a_CursorX, int a_CursorY, int a_CursorZ,
		BLOCKTYPE & a_BlockType, NIBBLETYPE & a_BlockMeta
	) override
	{
		// We set to zero so MCS doesn't stop you from building weird portals like vanilla does
		// CanBeAt doesn't do anything if meta is zero
		// We set to zero because the client sends meta = 2 to the server (it calculates rotation itself)

		a_BlockType = m_BlockType;
		a_BlockMeta = 0;
		return true;
	}





	virtual cItems ConvertToPickups(NIBBLETYPE a_BlockMeta, cBlockEntity * a_BlockEntity, const cEntity * a_Digger, const cItem * a_Tool) override
	{
		// No pickups
		return {};
	}





	virtual void OnUpdate(
		cChunkInterface & a_ChunkInterface,
		cWorldInterface & a_WorldInterface,
		cBlockPluginInterface & a_PluginInterface,
		cChunk & a_Chunk,
		const Vector3i a_RelPos
	) override
	{
		// Spawn zombie pigmen with a 0.05% chance:
		if (GetRandomProvider().RandBool(0.9995))
		{
			return;
		}
		auto WorldPos = a_Chunk.RelativeToAbsolute(a_RelPos);
		a_WorldInterface.SpawnMob(WorldPos.x, WorldPos.y, WorldPos.z, mtZombiePigman, false);
	}





	virtual bool CanBeAt(cChunkInterface & a_ChunkInterface, int a_RelX, int a_RelY, int a_RelZ, const cChunk & a_Chunk) override
	{
		if ((a_RelY <= 0) || (a_RelY >= cChunkDef::Height - 1))
		{
			return false;  // In case someone places a portal with meta 1 or 2 at boundaries, and server tries to get invalid coords at Y - 1 or Y + 1
		}

		switch (a_Chunk.GetMeta(a_RelX, a_RelY, a_RelZ))
		{
			case 0x1:
			{
				static const std::array<Vector3i, 4> PortalCheck
				{
					{
						{ 0, 1, 0 },
						{ 0, -1, 0 },
						{ 1, 0, 0 },
						{ -1, 0, 0 },
					}
				};

				for (const auto & Direction : PortalCheck)
				{
					BLOCKTYPE Block;
					a_Chunk.UnboundedRelGetBlockType(a_RelX + Direction.x, a_RelY + Direction.y, a_RelZ + Direction.z, Block);

					if ((Block != E_BLOCK_NETHER_PORTAL) && (Block != E_BLOCK_OBSIDIAN))
					{
						return false;
					}
				}
				break;
			}
			case 0x2:
			{
				static const std::array<Vector3i, 4> PortalCheck
				{
					{
						{ 0, 1, 0 },
						{ 0, -1, 0 },
						{ 0, 0, -1 },
						{ 0, 0, 1 },
					}
				};

				for (const auto & Direction : PortalCheck)
				{
					BLOCKTYPE Block;
					a_Chunk.UnboundedRelGetBlockType(a_RelX + Direction.x, a_RelY + Direction.y, a_RelZ + Direction.z, Block);

					if ((Block != E_BLOCK_NETHER_PORTAL) && (Block != E_BLOCK_OBSIDIAN))
					{
						return false;
					}
				}
				break;
			}
		}
		return true;
	}

	virtual ColourID GetMapBaseColourID(NIBBLETYPE a_Meta) override
	{
		UNUSED(a_Meta);
		return 24;
	}
} ;