114 lines
2.8 KiB
C++
114 lines
2.8 KiB
C++
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#pragma once
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#include "RedstoneHandler.h"
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#include "../../Blocks/BlockTripwireHook.h"
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class cTripwireHookHandler : public cRedstoneHandler
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{
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typedef cRedstoneHandler super;
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public:
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virtual unsigned char GetPowerDeliveredToPosition(cWorld & a_World, Vector3i a_Position, BLOCKTYPE a_BlockType, NIBBLETYPE a_Meta, Vector3i a_QueryPosition, BLOCKTYPE a_QueryBlockType) const override
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{
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UNUSED(a_QueryBlockType);
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UNUSED(a_QueryPosition);
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return (GetPowerLevel(a_World, a_Position, a_BlockType, a_Meta) == 15) ? 15 : 0;
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}
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virtual unsigned char GetPowerLevel(cWorld & a_World, Vector3i a_Position, BLOCKTYPE a_BlockType, NIBBLETYPE a_Meta) const override
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{
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UNUSED(a_BlockType);
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bool FoundActivated = false;
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auto Position = a_Position;
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eBlockFace FaceToGoTowards = cBlockTripwireHookHandler::MetadataToDirection(a_Meta);
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for (int i = 0; i < 40; ++i) // Tripwires can be connected up to 40 blocks
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{
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BLOCKTYPE Type;
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NIBBLETYPE Meta;
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AddFaceDirection(Position.x, Position.y, Position.z, FaceToGoTowards);
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a_World.GetBlockTypeMeta(Position.x, Position.y, Position.z, Type, Meta);
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if (Type == E_BLOCK_TRIPWIRE)
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{
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if (!a_World.ForEachEntityInBox(cBoundingBox(Vector3d(0.5, 0, 0.5) + Position, 0.5, 0.5), [](cEntity &) { return true; }))
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{
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FoundActivated = true;
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}
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}
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else if (Type == E_BLOCK_TRIPWIRE_HOOK)
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{
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if (ReverseBlockFace(cBlockTripwireHookHandler::MetadataToDirection(Meta)) == FaceToGoTowards)
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{
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// Other hook facing in opposite direction - circuit completed!
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return FoundActivated ? 15 : 1;
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}
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else
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{
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// Tripwire hook not connected at all
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return 0;
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}
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}
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else
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{
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// Tripwire hook not connected at all
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return 0;
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}
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}
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return 0;
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}
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virtual cVector3iArray Update(cWorld & a_World, Vector3i a_Position, BLOCKTYPE a_BlockType, NIBBLETYPE a_Meta, PoweringData a_PoweringData) const override
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{
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// LOGD("Evaluating hooky the tripwire hook (%d %d %d)", a_Position.x, a_Position.y, a_Position.z);
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auto Power = GetPowerLevel(a_World, a_Position, a_BlockType, a_Meta);
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NIBBLETYPE Meta;
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if (Power == 0)
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{
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Meta = (a_Meta & 0x3);
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}
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else if (Power == 1)
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{
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// Connected but not activated, AND away the highest bit
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Meta = (a_Meta & 0x7) | 0x4;
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}
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else if (Power == 15)
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{
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// Connected and activated, set the 3rd and 4th highest bits
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Meta = (a_Meta | 0xC);
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}
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else
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{
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ASSERT(!"Unexpected tripwire hook power level!");
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return {};
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}
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if (Meta != a_Meta)
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{
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a_World.SetBlockMeta(a_Position, Meta);
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return GetAdjustedRelatives(a_Position, GetRelativeAdjacents());
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}
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return {};
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}
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virtual cVector3iArray GetValidSourcePositions(cWorld & a_World, Vector3i a_Position, BLOCKTYPE a_BlockType, NIBBLETYPE a_Meta) const override
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{
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UNUSED(a_World);
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UNUSED(a_BlockType);
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UNUSED(a_Meta);
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UNUSED(a_Position);
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return {};
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}
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};
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