174 lines
3.5 KiB
C++
174 lines
3.5 KiB
C++
#pragma once
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#include "BlockHandler.h"
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#include "../Chunk.h"
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#include "Mixins.h"
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#include "BlockSlab.h"
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class cBlockLeverHandler final :
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public cMetaRotator<cBlockHandler, 0x07, 0x04, 0x01, 0x03, 0x02, false>
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{
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using Super = cMetaRotator<cBlockHandler, 0x07, 0x04, 0x01, 0x03, 0x02, false>;
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public:
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using Super::Super;
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/** Extracts the ON bit from metadata and returns if true if it is set */
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static bool IsLeverOn(NIBBLETYPE a_BlockMeta)
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{
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return ((a_BlockMeta & 0x8) == 0x8);
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}
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private:
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virtual bool OnUse(
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cChunkInterface & a_ChunkInterface,
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cWorldInterface & a_WorldInterface,
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cPlayer & a_Player,
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const Vector3i a_BlockPos,
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eBlockFace a_BlockFace,
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const Vector3i a_CursorPos
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) const override
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{
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// Flip the ON bit on / off using the XOR bitwise operation
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NIBBLETYPE Meta = (a_ChunkInterface.GetBlockMeta(a_BlockPos) ^ 0x08);
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a_ChunkInterface.SetBlockMeta(a_BlockPos, Meta);
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a_WorldInterface.WakeUpSimulators(a_BlockPos);
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a_WorldInterface.GetBroadcastManager().BroadcastSoundEffect("block.lever.click", a_BlockPos, 0.5f, (Meta & 0x08) ? 0.6f : 0.5f);
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return true;
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}
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virtual cItems ConvertToPickups(const NIBBLETYPE a_BlockMeta, const cItem * const a_Tool) const override
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{
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// Reset meta to zero:
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return cItem(E_BLOCK_LEVER, 1, 0);
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}
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virtual bool IsUseable(void) const override
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{
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return true;
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}
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/** Converts the leve block's meta to the block face of the neighbor to which the lever is attached. */
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inline static eBlockFace BlockMetaDataToBlockFace(NIBBLETYPE a_Meta)
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{
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switch (a_Meta & 0x7)
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{
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case 0x1: return BLOCK_FACE_XP;
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case 0x2: return BLOCK_FACE_XM;
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case 0x3: return BLOCK_FACE_ZP;
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case 0x4: return BLOCK_FACE_ZM;
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case 0x5:
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case 0x6: return BLOCK_FACE_YP;
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case 0x7:
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case 0x0: return BLOCK_FACE_YM;
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default:
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{
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ASSERT(!"Unhandled block meta!");
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return BLOCK_FACE_NONE;
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}
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}
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}
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virtual bool CanBeAt(const cChunk & a_Chunk, const Vector3i a_Position, const NIBBLETYPE a_Meta) const override
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{
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// Find the type of block the lever is attached to:
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auto NeighborFace = BlockMetaDataToBlockFace(a_Meta);
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auto NeighborPos = AddFaceDirection(a_Position, NeighborFace, true);
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if (!cChunkDef::IsValidHeight(NeighborPos.y))
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{
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return false;
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}
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BLOCKTYPE NeighborBlockType;
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NIBBLETYPE NeighborMeta;
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if (!a_Chunk.UnboundedRelGetBlock(NeighborPos, NeighborBlockType, NeighborMeta))
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{
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return false;
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}
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// Allow any full block or the "good" side of a half-slab:
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if (cBlockInfo::FullyOccupiesVoxel(NeighborBlockType))
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{
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return true;
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}
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else if (cBlockSlabHandler::IsAnySlabType(NeighborBlockType))
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{
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return (
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(((NeighborMeta & 0x08) == 0x08) && (NeighborFace == BLOCK_FACE_TOP)) ||
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(((NeighborMeta & 0x08) == 0) && (NeighborFace == BLOCK_FACE_BOTTOM))
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);
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}
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return false;
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}
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virtual NIBBLETYPE MetaRotateCCW(NIBBLETYPE a_Meta) const override
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{
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switch (a_Meta)
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{
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case 0x00: return 0x07; // Ceiling rotation
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case 0x07: return 0x00;
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case 0x05: return 0x06; // Ground rotation
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case 0x06: return 0x05;
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default: return Super::MetaRotateCCW(a_Meta); // Wall Rotation
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}
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}
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virtual NIBBLETYPE MetaRotateCW(NIBBLETYPE a_Meta) const override
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{
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switch (a_Meta)
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{
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case 0x00: return 0x07; // Ceiling rotation
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case 0x07: return 0x00;
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case 0x05: return 0x06; // Ground rotation
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case 0x06: return 0x05;
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default: return Super::MetaRotateCW(a_Meta); // Wall Rotation
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}
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}
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virtual ColourID GetMapBaseColourID(NIBBLETYPE a_Meta) const override
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{
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UNUSED(a_Meta);
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return 0;
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}
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} ;
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